The Ecere SDK - sdk/blob - ecere/src/gfx/drivers/OpenGLDisplayDriver.ec

   1 // We were using PBUFFER for alpha compositing on Linux before, but it does not seem to work, nor be required anymore.
   2 // #define USEPBUFFER
   3
   4 namespace gfx::drivers;
   5
   6 // OpenGL Extensions
   7 #if defined(__unix__) || defined(__APPLE__)
   8
   9 #if !defined(__MINGW32__)
  10 #define GL_GLEXT_PROTOTYPES
  11 #endif
  12
  13 #ifdef ECERE_MINIGLX
  14
  15 //#include <GL/miniglx.h>
  16
  17 #else
  18
  19 #if defined(__ANDROID__)
  20
  21 #else
  22
  23 #define property _property
  24 #define new _new
  25 #define class _class
  26
  27 #define Window    X11Window
  28 #define Cursor    X11Cursor
  29 #define Font      X11Font
  30 #define Display   X11Display
  31 #define Time      X11Time
  32 #define KeyCode   X11KeyCode
  33 #define Picture   X11Picture
  34 #define uint _uint
  35
  36 #include <X11/Xlib.h>
  37 #include <X11/Xutil.h>
  38 #include <GL/glx.h>
  39 #include <X11/extensions/XShm.h>
  40 #include <sys/ipc.h>
  41 #include <sys/shm.h>
  42 #include <X11/extensions/Xrender.h>
  43 #include <X11/extensions/shape.h>
  44
  45 #undef Window
  46 #undef Cursor
  47 #undef Font
  48 #undef Display
  49 #undef Time
  50 #undef KeyCode
  51 #undef Picture
  52 #undef uint
  53 #undef new
  54 #undef property
  55 #undef class
  56
  57 #endif
  58
  59 #endif
  60
  61 #endif
  62
  63 #if defined(__APPLE__)
  64 #include <OpenGl/gl.h>
  65 #endif
  66
  67 #if defined(__WIN32__) || defined(__unix__) || defined(__APPLE__)
  68
  69 #if defined(__WIN32__)
  70 #define WIN32_LEAN_AND_MEAN
  71 #undef _WIN32_WINNT
  72 #define _WIN32_WINNT 0x0502
  73 #define String Sting_
  74 #include <windows.h>
  75 #undef String
  76 #endif
  77
  78 #if defined(__ANDROID__)
  79
  80 #include <GLES/gl.h>
  81 #include <EGL/egl.h>
  82
  83 #else
  84
  85 #include <GL/gl.h>
  86 #include <GL/glext.h>
  87
  88 #endif
  89
  90 import "Display"
  91
  92 #if defined(__unix__) || defined(__APPLE__)
  93
  94 #ifndef __ANDROID__
  95 import "XInterface"
  96 #endif
  97
  98 #endif
  99
 100 static double nearPlane = 1;
 101
 102 #define glLoadMatrix glLoadMatrixd
 103 #define glMultMatrix glMultMatrixd
 104 #define glGetMatrix  glGetDoublev
 105 #define glTranslate glTranslated
 106 #define glScale glScaled
 107
 108 /*
 109 #define glVertex3v glVertex3dv
 110 #define glNormal3v glNormal3dv
 111 */
 112
 113 /*
 114 //#ifdef VERTEX_FORMAT_DOUBLE
 115
 116 #define glLoadMatrix glLoadMatrixd
 117 #define glMultMatrix glMultMatrixd
 118 #define glGetMatrix  glGetDoublev
 119 #define glVertex3v glVertex3dv
 120 #define glNormal3v glNormal3dv
 121 #define glTranslate glTranslated
 122 #define glScale glScaled
 123 //#define GL_VERTEX_FORMAT   GL_DOUBLE
 124
 125 #else
 126
 127 #define glLoadMatrix glLoadMatrixf
 128 #define glMultMatrix glMultMatrixf
 129 #define glGetMatrix  glGetFloatv
 130 #define glVertex3v glVertex3fv
 131 #define glNormal3v glNormal3fv
 132 #define glTranslate glTranslatef
 133 #define glScale glScalef
 134 //#define GL_VERTEX_FORMAT   GL_FLOAT
 135
 136 #endif
 137 */
 138
 139 #define GL_ARRAY_BUFFER_ARB            0x8892
 140 #define GL_ELEMENT_ARRAY_BUFFER_ARB    0x8893
 141 #define GL_STATIC_DRAW_ARB             0x88E4
 142 #define GL_LIGHT_MODEL_COLOR_CONTROL   0x81F8
 143 #define GL_SEPARATE_SPECULAR_COLOR     0x81FA
 144
 145 #define GL_MULTISAMPLE_ARB             0x809D
 146
 147 #if defined(__WIN32__)
 148
 149 #define WGL_SAMPLE_BUFFERS_ARB              0x2041
 150 #define WGL_SAMPLES_ARB                     0x2042
 151
 152 #define  WGL_WGLEXT_VERSION   1
 153 #define  WGL_FRONT_COLOR_BUFFER_BIT_ARB   0x00000001
 154 #define  WGL_BACK_COLOR_BUFFER_BIT_ARB   0x00000002
 155 #define  WGL_DEPTH_BUFFER_BIT_ARB   0x00000004
 156 #define  WGL_STENCIL_BUFFER_BIT_ARB   0x00000008
 157 #define  WGL_NUMBER_PIXEL_FORMATS_ARB   0x2000
 158 #define  WGL_DRAW_TO_WINDOW_ARB   0x2001
 159 #define  WGL_DRAW_TO_BITMAP_ARB   0x2002
 160 #define  WGL_ACCELERATION_ARB   0x2003
 161 #define  WGL_NEED_PALETTE_ARB   0x2004
 162 #define  WGL_NEED_SYSTEM_PALETTE_ARB   0x2005
 163 #define  WGL_SWAP_LAYER_BUFFERS_ARB   0x2006
 164 #define  WGL_SWAP_METHOD_ARB   0x2007
 165 #define  WGL_NUMBER_OVERLAYS_ARB   0x2008
 166 #define  WGL_NUMBER_UNDERLAYS_ARB   0x2009
 167 #define  WGL_TRANSPARENT_ARB   0x200A
 168 #define  WGL_TRANSPARENT_RED_VALUE_ARB   0x2037
 169 #define  WGL_TRANSPARENT_GREEN_VALUE_ARB   0x2038
 170 #define  WGL_TRANSPARENT_BLUE_VALUE_ARB   0x2039
 171 #define  WGL_TRANSPARENT_ALPHA_VALUE_ARB   0x203A
 172 #define  WGL_TRANSPARENT_INDEX_VALUE_ARB   0x203B
 173 #define  WGL_SHARE_DEPTH_ARB   0x200C
 174 #define  WGL_SHARE_STENCIL_ARB   0x200D
 175 #define  WGL_SHARE_ACCUM_ARB   0x200E
 176 #define  WGL_SUPPORT_GDI_ARB   0x200F
 177 #define  WGL_SUPPORT_OPENGL_ARB   0x2010
 178 #define  WGL_DOUBLE_BUFFER_ARB   0x2011
 179 #define  WGL_STEREO_ARB   0x2012
 180 #define  WGL_PIXEL_TYPE_ARB   0x2013
 181 #define  WGL_COLOR_BITS_ARB   0x2014
 182 #define  WGL_RED_BITS_ARB   0x2015
 183 #define  WGL_RED_SHIFT_ARB   0x2016
 184 #define  WGL_GREEN_BITS_ARB   0x2017
 185 #define  WGL_GREEN_SHIFT_ARB   0x2018
 186 #define  WGL_BLUE_BITS_ARB   0x2019
 187 #define  WGL_BLUE_SHIFT_ARB   0x201A
 188 #define  WGL_ALPHA_BITS_ARB   0x201B
 189 #define  WGL_ALPHA_SHIFT_ARB   0x201C
 190 #define  WGL_ACCUM_BITS_ARB   0x201D
 191 #define  WGL_ACCUM_RED_BITS_ARB   0x201E
 192 #define  WGL_ACCUM_GREEN_BITS_ARB   0x201F
 193 #define  WGL_ACCUM_BLUE_BITS_ARB   0x2020
 194 #define  WGL_ACCUM_ALPHA_BITS_ARB   0x2021
 195 #define  WGL_DEPTH_BITS_ARB   0x2022
 196 #define  WGL_STENCIL_BITS_ARB   0x2023
 197 #define  WGL_AUX_BUFFERS_ARB   0x2024
 198 #define  WGL_NO_ACCELERATION_ARB   0x2025
 199 #define  WGL_GENERIC_ACCELERATION_ARB   0x2026
 200 #define  WGL_FULL_ACCELERATION_ARB   0x2027
 201 #define  WGL_SWAP_EXCHANGE_ARB   0x2028
 202 #define  WGL_SWAP_COPY_ARB   0x2029
 203 #define  WGL_SWAP_UNDEFINED_ARB   0x202A
 204 #define  WGL_TYPE_RGBA_ARB   0x202B
 205 #define  WGL_TYPE_COLORINDEX_ARB   0x202C
 206 #define  ERROR_INVALID_PIXEL_TYPE_ARB   0x2043
 207 #define  ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB   0x2054
 208 #define  WGL_DRAW_TO_PBUFFER_ARB   0x202D
 209 #define  WGL_MAX_PBUFFER_PIXELS_ARB   0x202E
 210 #define  WGL_MAX_PBUFFER_WIDTH_ARB   0x202F
 211 #define  WGL_MAX_PBUFFER_HEIGHT_ARB   0x2030
 212 #define  WGL_PBUFFER_LARGEST_ARB   0x2033
 213 #define  WGL_PBUFFER_WIDTH_ARB   0x2034
 214 #define  WGL_PBUFFER_HEIGHT_ARB   0x2035
 215 #define  WGL_PBUFFER_LOST_ARB   0x2036
 216 #define  ERROR_INVALID_PIXEL_TYPE_EXT   0x2043
 217 #define  WGL_NUMBER_PIXEL_FORMATS_EXT   0x2000
 218 #define  WGL_DRAW_TO_WINDOW_EXT   0x2001
 219 #define  WGL_DRAW_TO_BITMAP_EXT   0x2002
 220 #define  WGL_ACCELERATION_EXT   0x2003
 221 #define  WGL_NEED_PALETTE_EXT   0x2004
 222 #define  WGL_NEED_SYSTEM_PALETTE_EXT   0x2005
 223 #define  WGL_SWAP_LAYER_BUFFERS_EXT   0x2006
 224 #define  WGL_SWAP_METHOD_EXT   0x2007
 225 #define  WGL_NUMBER_OVERLAYS_EXT   0x2008
 226 #define  WGL_NUMBER_UNDERLAYS_EXT   0x2009
 227 #define  WGL_TRANSPARENT_EXT   0x200A
 228 #define  WGL_TRANSPARENT_VALUE_EXT   0x200B
 229 #define  WGL_SHARE_DEPTH_EXT   0x200C
 230 #define  WGL_SHARE_STENCIL_EXT   0x200D
 231 #define  WGL_SHARE_ACCUM_EXT   0x200E
 232 #define  WGL_SUPPORT_GDI_EXT   0x200F
 233 #define  WGL_SUPPORT_OPENGL_EXT   0x2010
 234 #define  WGL_DOUBLE_BUFFER_EXT   0x2011
 235 #define  WGL_STEREO_EXT   0x2012
 236 #define  WGL_PIXEL_TYPE_EXT   0x2013
 237 #define  WGL_COLOR_BITS_EXT   0x2014
 238 #define  WGL_RED_BITS_EXT   0x2015
 239 #define  WGL_RED_SHIFT_EXT   0x2016
 240 #define  WGL_GREEN_BITS_EXT   0x2017
 241 #define  WGL_GREEN_SHIFT_EXT   0x2018
 242 #define  WGL_BLUE_BITS_EXT   0x2019
 243 #define  WGL_BLUE_SHIFT_EXT   0x201A
 244 #define  WGL_ALPHA_BITS_EXT   0x201B
 245 #define  WGL_ALPHA_SHIFT_EXT   0x201C
 246 #define  WGL_ACCUM_BITS_EXT   0x201D
 247 #define  WGL_ACCUM_RED_BITS_EXT   0x201E
 248 #define  WGL_ACCUM_GREEN_BITS_EXT   0x201F
 249 #define  WGL_ACCUM_BLUE_BITS_EXT   0x2020
 250 #define  WGL_ACCUM_ALPHA_BITS_EXT   0x2021
 251 #define  WGL_DEPTH_BITS_EXT   0x2022
 252 #define  WGL_STENCIL_BITS_EXT   0x2023
 253 #define  WGL_AUX_BUFFERS_EXT   0x2024
 254 #define  WGL_NO_ACCELERATION_EXT   0x2025
 255 #define  WGL_GENERIC_ACCELERATION_EXT   0x2026
 256 #define  WGL_FULL_ACCELERATION_EXT   0x2027
 257 #define  WGL_SWAP_EXCHANGE_EXT   0x2028
 258 #define  WGL_SWAP_COPY_EXT   0x2029
 259 #define  WGL_SWAP_UNDEFINED_EXT   0x202A
 260 #define  WGL_TYPE_RGBA_EXT   0x202B
 261 #define  WGL_TYPE_COLORINDEX_EXT   0x202C
 262 #define  WGL_DRAW_TO_PBUFFER_EXT   0x202D
 263 #define  WGL_MAX_PBUFFER_PIXELS_EXT   0x202E
 264 #define  WGL_MAX_PBUFFER_WIDTH_EXT   0x202F
 265 #define  WGL_MAX_PBUFFER_HEIGHT_EXT   0x2030
 266 #define  WGL_OPTIMAL_PBUFFER_WIDTH_EXT   0x2031
 267 #define  WGL_OPTIMAL_PBUFFER_HEIGHT_EXT   0x2032
 268 #define  WGL_PBUFFER_LARGEST_EXT   0x2033
 269 #define  WGL_PBUFFER_WIDTH_EXT   0x2034
 270 #define  WGL_PBUFFER_HEIGHT_EXT   0x2035
 271 #define  WGL_DEPTH_FLOAT_EXT   0x2040
 272 #define  WGL_SAMPLE_BUFFERS_3DFX   0x2060
 273 #define  WGL_SAMPLES_3DFX   0x2061
 274 #define  WGL_SAMPLE_BUFFERS_EXT   0x2041
 275 #define  WGL_SAMPLES_EXT   0x2042
 276 #define  WGL_GENLOCK_SOURCE_MULTIVIEW_I3D   0x2044
 277 #define  WGL_GENLOCK_SOURCE_EXTENAL_SYNC_I3D   0x2045
 278 #define  WGL_GENLOCK_SOURCE_EXTENAL_FIELD_I3D   0x2046
 279 #define  WGL_GENLOCK_SOURCE_EXTENAL_TTL_I3D   0x2047
 280 #define  WGL_GENLOCK_SOURCE_DIGITAL_SYNC_I3D   0x2048
 281 #define  WGL_GENLOCK_SOURCE_DIGITAL_FIELD_I3D   0x2049
 282 #define  WGL_GENLOCK_SOURCE_EDGE_FALLING_I3D   0x204A
 283 #define  WGL_GENLOCK_SOURCE_EDGE_RISING_I3D   0x204B
 284 #define  WGL_GENLOCK_SOURCE_EDGE_BOTH_I3D   0x204C
 285 #define  WGL_GAMMA_TABLE_SIZE_I3D   0x204E
 286 #define  WGL_GAMMA_EXCLUDE_DESKTOP_I3D   0x204F
 287 #define  WGL_DIGITAL_VIDEO_CURSOR_ALPHA_FRAMEBUFFER_I3D   0x2050
 288 #define  WGL_DIGITAL_VIDEO_CURSOR_ALPHA_VALUE_I3D   0x2051
 289 #define  WGL_DIGITAL_VIDEO_CURSOR_INCLUDED_I3D   0x2052
 290 #define  WGL_DIGITAL_VIDEO_GAMMA_CORRECTED_I3D   0x2053
 291 #define  WGL_ARB_buffer_region   1
 292 #define  WGL_ARB_extensions_string   1
 293 #define  WGL_ARB_pixel_format   1
 294 #define  WGL_ARB_make_current_read   1
 295 #define  WGL_ARB_pbuffer   1
 296 #define  WGL_EXT_display_color_table   1
 297 #define  WGL_EXT_extensions_string   1
 298 #define  WGL_EXT_make_current_read   1
 299 #define  WGL_EXT_pbuffer   1
 300 #define  WGL_EXT_pixel_format   1
 301 #define  WGL_EXT_swap_control   1
 302 #define  WGL_WGL_EXT_depth_float   1
 303 #define  WGL_WGL_3DFX_multisample   1
 304 #define  WGL_WGL_EXT_multisample   1
 305 #define  WGL_NV_allocate_memory   1
 306
 307 /*
 308 typedef void (APIENTRY * PFNGLACTIVETEXTUREARBPROC) (GLenum target);
 309 typedef void (APIENTRY * PFNGLMULTITEXCOORD2FARBPROC) (GLenum target, GLfloat s, GLfloat t);
 310 typedef void (APIENTRY * PFNGLCLIENTACTIVETEXTUREARBPROC) (GLenum target);
 311 typedef void (APIENTRY * PFNGLLOCKARRAYSEXTPROC) (GLint first, GLsizei count);
 312 typedef void (APIENTRY * PFNGLUNLOCKARRAYSEXTPROC) (void);
 313 */
 314
 315 /*
 316 typedef int (APIENTRY * PFNGLBINDBUFFERARBPROC) (GLenum target, GLuint buffer);
 317 typedef int (APIENTRY * PFNGLDELETEBUFFERSARBPROC) (GLsizei n, const GLuint *buffers);
 318 typedef int (APIENTRY * PFNGLGENBUFFERSARBPROC) (GLsizei n, GLuint *buffers);
 319 typedef int (APIENTRY * PFNGLBUFFERDATAARBPROC) (GLenum target, int size, const GLvoid *data, GLenum usage);
 320 */
 321 typedef int (APIENTRY * PFNWGLCHOOSEPIXELFORMATARBPROC) ();
 322 typedef void * (APIENTRY * PFNWGLCREATEPBUFFERARBPROC) (HDC hDC, int iPixelFormat, int iWidth, int iHeight, const int *piAttribList);
 323 typedef HDC (APIENTRY * PFNWGLGETPBUFFERDCARBPROC) (void * hPbuffer);
 324 typedef int (APIENTRY * PFNWGLRELEASEPBUFFERDCARBPROC) (void * hPbuffer, HDC hDC);
 325 typedef BOOL (APIENTRY * PFNWGLDESTROYPBUFFERARBPROC) (void * hPbuffer);
 326 typedef BOOL (APIENTRY * PFNWGLQUERYPBUFFERARBPROC) (void * hPbuffer, int iAttribute, int *piValue);
 327 typedef const char * (APIENTRY * PFNWGLGETEXTENSIONSSTRINGARBPROC) (HDC hdc);
 328 typedef BOOL (APIENTRY * PFNWGLBINDTEXIMAGEARBPROC) (void * hPbuffer, int iBuffer);
 329 typedef BOOL (APIENTRY * PFNWGLRELEASETEXIMAGEARBPROC) (void * hPbuffer, int iBuffer);
 330
 331 static PFNGLMAPBUFFERARBPROC glMapBufferARB = null;
 332 static PFNGLUNMAPBUFFERARBPROC glUnmapBufferARB = null;
 333 static PFNGLACTIVETEXTUREARBPROC glActiveTextureARB = null;
 334 static PFNGLMULTITEXCOORD2FARBPROC glMultiTexCoord2fARB = null;
 335 static PFNGLCLIENTACTIVETEXTUREARBPROC glClientActiveTextureARB = null;
 336 static PFNGLLOCKARRAYSEXTPROC glLockArraysEXT = null;
 337 static PFNGLUNLOCKARRAYSEXTPROC glUnlockArraysEXT = null;
 338 static PFNGLBLENDFUNCSEPARATEPROC glBlendFuncSeparate = null;
 339
 340 static PFNGLGENBUFFERSARBPROC glGenBuffersARB = null;
 341 static PFNGLBINDBUFFERARBPROC glBindBufferARB = null;
 342 static PFNGLBUFFERDATAARBPROC glBufferDataARB = null;
 343 static PFNGLDELETEBUFFERSARBPROC glDeleteBuffersARB = null;
 344 static PFNWGLCHOOSEPIXELFORMATARBPROC wglChoosePixelFormatARB = null;
 345 static PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB = null;
 346 static PFNWGLCREATEPBUFFERARBPROC wglCreatePbufferARB = null;
 347 static PFNWGLGETPBUFFERDCARBPROC wglGetPbufferDCARB = null;
 348 static PFNWGLQUERYPBUFFERARBPROC wglQueryPbufferARB = null;
 349 static PFNWGLDESTROYPBUFFERARBPROC wglDestroyPbufferARB = null;
 350 static PFNWGLRELEASEPBUFFERDCARBPROC wglReleasePbufferDCARB = null;
 351 static PFNWGLBINDTEXIMAGEARBPROC wglBindTexImageARB = null;
 352 static PFNWGLRELEASETEXIMAGEARBPROC wglReleaseTexImageARB = null;
 353
 354 #ifdef WGL_WGLEXT_PROTOTYPES
 355 extern BOOL WINAPI wglSwapIntervalEXT (int);
 356 extern int WINAPI wglGetSwapIntervalEXT (void);
 357 #endif /* WGL_WGLEXT_PROTOTYPES */
 358 typedef BOOL (WINAPI * PFNWGLSWAPINTERVALEXTPROC) (int interval);
 359 typedef int (WINAPI * PFNWGLGETSWAPINTERVALEXTPROC) (void);
 360
 361 static PFNWGLSWAPINTERVALEXTPROC wglSwapIntervalEXT = NULL;
 362
 363 #else
 364
 365 #if defined(__ANDROID__)
 366
 367 // Our own matrix stack
 368 static Matrix matrixStack[3][32];
 369 static int matrixIndex[3];
 370 static int curStack = 0;
 371
 372 // OpenGL ES Porting Kit
 373
 374 #define glBindFramebuffer        glBindFramebufferOES
 375 #define glBindRenderbuffer       glBindRenderbufferOES
 376 #define GL_FRAMEBUFFER           GL_FRAMEBUFFER_OES
 377 #define GL_RENDERBUFFER          GL_RENDERBUFFER_OES
 378 #define glFramebufferTexture2D   glFramebufferTexture2DOES
 379 #define GL_COLOR_ATTACHMENT0     GL_COLOR_ATTACHMENT0_OES
 380 #define glGenFramebuffers        glGenFramebuffersOES
 381 #define glGenRenderbuffers       glGenRenderbuffersOES
 382 #define glDeleteFramebuffers     glDeleteFramebuffersOES
 383 #define glDeleteRenderbuffers    glDeleteRenderbuffersOES
 384
 385 #define GL_POLYGON_STIPPLE 0xFFFF
 386 #define GL_LINE_STIPPLE 0xFFFF
 387 #define GL_LINE 0xFFFF
 388 #define GL_FILL 0xFFFF
 389 #define GL_ALL_ATTRIB_BITS 0xFFFF
 390 #define GL_LIGHT_MODEL_LOCAL_VIEWER 0xFFFF
 391 #define glDrawElementsi(type, count, start)  glDrawElements(type, count, GL_UNSIGNED_SHORT, start)
 392
 393 #define GL_UNSIGNED_INT                         0x1405
 394 #define GL_DOUBLE                               0x140A
 395
 396 #define GL_POLYGON      9
 397 #define GL_QUADS        7
 398
 399 #define glBufferDatai         glesBufferDatai
 400 #define glBufferDatad         glesBufferDatad
 401 #define glVertexPointeri      glesVertexPointeri
 402 #define glVertexPointerd      glesVertexPointerd
 403
 404 #define glRecti               glesRecti
 405 #define glBegin               glesBegin
 406 #define glTexCoord2i          glesTexCoord2i
 407 #define glVertex2i            glesVertex2i
 408 #define glTexCoord2d          glesTexCoord2d
 409 #define glVertex2d            glesVertex2d
 410 #define glTexCoord2f          glesTexCoord2f
 411 #define glVertex2f            glesVertex2f
 412 #define glEnd                 glesEnd
 413 #define glColor3f             glesColor3f
 414 #define glColor4ub            glesColor4ub
 415 #define glColor4fv            glesColor4fv
 416 #define glLineStipple         glesLineStipple
 417 #define glNormal3fv           glesNormal3fv
 418 #define glTexCoord2fv         glesTexCoord2fv
 419 #define glColorMaterial       glesColorMaterial
 420
 421 #define glLoadMatrixd         glesLoadMatrixd
 422 #define glMultMatrixd         glesMultMatrixd
 423 #define glFrustum             glesFrustum
 424 #define glOrtho               glesOrtho
 425 #define glScaled              glesScaled
 426 #define glTranslated          glesTranslated
 427 #define glRotated             glesRotated
 428 #define glVertex3d            glesVertex3d
 429 #define glVertex3f            glesVertex3f
 430 #define glVertex3fv           glesVertex3fv
 431 #define glLightModeli         glesLightModeli
 432
 433 #define APIENTRY
 434 //#define GL_QUADS              0
 435 #define GL_QUAD_STRIP         0
 436 //#define GL_DOUBLE             0
 437 //#define GL_UNSIGNED_INT       0
 438 //#define GL_FILL               0
 439 //#define GL_LINE               0
 440 //#define GL_LINE_STIPPLE       0
 441 #define GL_BGRA_EXT           0
 442 #define GL_UNPACK_ROW_LENGTH  0
 443 #define GL_UNPACK_SKIP_PIXELS 0
 444 #define GL_UNPACK_SKIP_ROWS   0
 445 #define GL_RGBA8              0
 446 #define GL_PACK_ROW_LENGTH    0
 447 #define GL_PACK_SKIP_ROWS     0
 448 #define GL_PACK_SKIP_PIXELS   0
 449
 450 static EGLDisplay eglDisplay;
 451 static EGLSurface eglSurface;
 452 static EGLContext eglContext;
 453 static int eglWidth, eglHeight;
 454
 455 static bool egl_init_display(ANativeWindow* window)
 456 {
 457    const EGLint attribs[] =
 458    {
 459       EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
 460       EGL_BLUE_SIZE, 8,
 461       EGL_GREEN_SIZE, 8,
 462       EGL_RED_SIZE, 8,
 463       EGL_DEPTH_SIZE, 24,
 464       /*EGL_SAMPLE_BUFFERS, 1,
 465       EGL_SAMPLES, 0, //2,*/
 466       EGL_NONE
 467    };
 468    EGLint w, h, format;
 469    EGLint numConfigs;
 470    EGLConfig config;
 471    EGLSurface surface;
 472    EGLContext context;
 473
 474    EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
 475    eglInitialize(display, 0, 0);
 476    eglChooseConfig(display, attribs, &config, 1, &numConfigs);
 477    eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &format);
 478
 479    surface = eglCreateWindowSurface(display, config, window, null);
 480    context = eglCreateContext(display, config, null, null);
 481
 482    if(!eglMakeCurrent(display, surface, surface, context))
 483       return false;
 484
 485    eglQuerySurface(display, surface, EGL_WIDTH, &w);
 486    eglQuerySurface(display, surface, EGL_HEIGHT, &h);
 487
 488    eglDisplay = display;
 489    eglContext = context;
 490    eglSurface = surface;
 491    eglWidth = w;
 492    eglHeight = h;
 493
 494    glEnableClientState(GL_VERTEX_ARRAY);
 495    /*
 496    // Initialize GL state.
 497    glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_FASTEST);
 498    glEnable(GL_CULL_FACE);
 499    glShadeModel(GL_SMOOTH);
 500    glDisable(GL_DEPTH_TEST);
 501    */
 502    glDisable(GL_CULL_FACE);
 503    glDisable(GL_DEPTH_TEST);
 504
 505    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
 506    glEnable(GL_BLEND);
 507
 508    matrixStack[0][0].Identity();
 509    matrixStack[1][0].Identity();
 510    matrixStack[2][0].Identity();
 511
 512    glesMatrixMode(GL_MODELVIEW);
 513    glScaled(1.0, 1.0, -1.0);
 514    glesMatrixMode(GL_PROJECTION);
 515    glShadeModel(GL_FLAT);
 516
 517    glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
 518    glFogi(GL_FOG_MODE, GL_EXP);
 519    glFogf(GL_FOG_DENSITY, 0);
 520    glEnable(GL_NORMALIZE);
 521    glDepthFunc(GL_LESS);
 522    glClearDepth(1.0);
 523    glDisable(GL_MULTISAMPLE_ARB);
 524
 525    glViewport(0,0,w,h);
 526    glesLoadIdentity();
 527    glOrtho(0,w,h,0,0.0,1.0);
 528
 529    currentVertexBuffer = 0;
 530    return true;
 531 }
 532
 533 static void egl_term_display()
 534 {
 535    if(stippleTexture)
 536    {
 537       glDeleteTextures(1, &stippleTexture);
 538       stippleTexture = 0;
 539    }
 540    if(eglDisplay != EGL_NO_DISPLAY)
 541    {
 542       eglMakeCurrent(eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
 543       if(eglContext != EGL_NO_CONTEXT)
 544          eglDestroyContext(eglDisplay, eglContext);
 545       if(eglSurface != EGL_NO_SURFACE)
 546          eglDestroySurface(eglDisplay, eglSurface);
 547       eglTerminate(eglDisplay);
 548    }
 549    eglDisplay = EGL_NO_DISPLAY;
 550    eglContext = EGL_NO_CONTEXT;
 551    eglSurface = EGL_NO_SURFACE;
 552 }
 553
 554 // OpenGL Immediate Mode Porting Kit
 555 static int beginCount;
 556 static int vertexCount;
 557 static int normalCount;
 558 static float *vertexPointer;
 559 static float *normalPointer;
 560 static GLenum beginMode;
 561 static unsigned int beginBufferSize, normalBufferSize;
 562 static int numVertexCoords = 2;
 563
 564 void glesRecti(int a, int b, int c, int d)
 565 {
 566    glBegin(GL_QUADS);
 567    glVertex2i(a, b);
 568    glVertex2i(a, d);
 569    glVertex2i(c, d);
 570    glVertex2i(c, b);
 571    glEnd();
 572 }
 573
 574 void glesBegin(GLenum mode)
 575 {
 576    beginMode = mode;
 577    beginCount = 0;
 578    vertexCount = 0;
 579    if(!vertexPointer)
 580    {
 581       normalBufferSize = beginBufferSize = 1024;  // default number of vertices
 582       vertexPointer = new float[beginBufferSize * 5];
 583       normalPointer = new float[normalBufferSize * 3];
 584    }
 585 }
 586
 587 void glesTexCoord2f(float x, float y)
 588 {
 589    int count = vertexCount;
 590
 591    if(vertexCount + numVertexCoords > beginBufferSize)
 592    {
 593       beginBufferSize = beginBufferSize + beginBufferSize/2;
 594       vertexPointer = renew vertexPointer float[beginBufferSize * 5];
 595    }
 596
 597    vertexPointer[count*(2+numVertexCoords)  ] = x;
 598    vertexPointer[count*(2+numVertexCoords)+1] = y;
 599    count++;
 600
 601    if(beginMode == GL_QUADS && ((beginCount % 4) == 3))
 602    {
 603       vertexPointer[count*(2+numVertexCoords)  ] = vertexPointer[(count-4)*(2+numVertexCoords)];
 604       vertexPointer[count*(2+numVertexCoords)+1] = vertexPointer[(count-4)*(2+numVertexCoords)+1];
 605       count++;
 606       vertexPointer[count*(2+numVertexCoords)  ] = vertexPointer[(count-3)*(2+numVertexCoords)];
 607       vertexPointer[count*(2+numVertexCoords)+1] = vertexPointer[(count-3)*(2+numVertexCoords)+1];
 608       count++;
 609    }
 610 }
 611 void glesTexCoord2i(int x, int y)       { glesTexCoord2f((float)x, (float)y); }
 612 void glesTexCoord2d(double x, double y) { glesTexCoord2f((float)x, (float)y); }
 613 void glesTexCoord2fv(float * a)         { glesTexCoord2f(a[0], a[1]); }
 614
 615 void glesVertex2f(float x, float y)
 616 {
 617    numVertexCoords = 2;
 618    if(vertexCount + 4 > beginBufferSize)
 619    {
 620       beginBufferSize = beginBufferSize + beginBufferSize/2;
 621       vertexPointer = renew vertexPointer float[beginBufferSize * 5];
 622    }
 623
 624    vertexPointer[vertexCount*4+2] = x;
 625    vertexPointer[vertexCount*4+3] = y;
 626    vertexCount++;
 627
 628    if(beginMode == GL_QUADS && ((beginCount % 4) == 3))
 629    {
 630       vertexPointer[vertexCount*4+2] = vertexPointer[(vertexCount-4)*4+2];
 631       vertexPointer[vertexCount*4+3] = vertexPointer[(vertexCount-4)*4+3];
 632       vertexCount++;
 633       vertexPointer[vertexCount*4+2] = vertexPointer[(vertexCount-3)*4+2];
 634       vertexPointer[vertexCount*4+3] = vertexPointer[(vertexCount-3)*4+3];
 635       vertexCount++;
 636    }
 637    beginCount++;
 638 }
 639 void glesVertex2i(int x, int y)         { glesVertex2f((float)x, (float)y); }
 640 void glesVertex2d(double x, double y)   { glesVertex2f((float)x, (float)y); }
 641
 642 void glesEnd(void)
 643 {
 644    int mode = beginMode;
 645    if(mode == GL_QUADS)        mode = GL_TRIANGLES;
 646    else if(mode == GL_POLYGON) mode = GL_TRIANGLE_FAN;
 647    GLSelectVBO(0);
 648    glEnableClientState(GL_TEXTURE_COORD_ARRAY);
 649    glTexCoordPointer(numVertexCoords, GL_FLOAT, (numVertexCoords+2)*sizeof(float),vertexPointer);
 650    glVertexPointer  (numVertexCoords, GL_FLOAT, (numVertexCoords+2)*sizeof(float),vertexPointer+2);
 651    if(normalCount && normalCount == vertexCount)
 652    {
 653       glEnableClientState(GL_NORMAL_ARRAY);
 654       glNormalPointer  (GL_FLOAT, 3*sizeof(float),normalPointer);
 655    }
 656
 657    glDrawArrays(mode, 0, vertexCount);
 658    if(normalCount)
 659       glDisableClientState(GL_NORMAL_ARRAY);
 660    glDisableClientState(GL_TEXTURE_COORD_ARRAY);
 661    normalCount = 0;
 662 }
 663
 664 // Vertex Pointer
 665 static float *floatVPBuffer = null;
 666 static short *shortVPBuffer = null;
 667 static unsigned int shortVPSize = 0, floatVPSize = 0;
 668
 669 // Buffer Data
 670 //static float *floatVPBuffer = null;  // For floats we reuse floatVPBuffer
 671 static unsigned short *shortBDBuffer = null;
 672 static unsigned int shortBDSize = 0/*, floatVPSize = 0*/;
 673
 674 void glesVertexPointeri(int numCoords, int stride, int *pointer, int numVertices)
 675 {
 676    if(pointer)
 677    {
 678       int i;
 679       if(numVertices*numCoords > shortVPSize)
 680       {
 681          shortVPSize = numVertices*numCoords;
 682          shortVPBuffer = renew shortVPBuffer short[shortVPSize];
 683       }
 684       for(i = 0; i < numVertices*numCoords; i++)
 685          shortVPBuffer[i] = (short)pointer[i];
 686       glVertexPointer(numCoords, GL_SHORT, stride, shortVPBuffer);
 687    }
 688    else
 689       glVertexPointer(numCoords, GL_SHORT, stride, 0);
 690 }
 691
 692 void glesVertexPointerd(int numCoords, int stride, double *pointer, int numVertices)
 693 {
 694    if(pointer)
 695    {
 696       int i;
 697       if(numVertices*numCoords > floatVPSize)
 698       {
 699          floatVPSize = numVertices*numCoords;
 700          floatVPBuffer = renew floatVPBuffer float[floatVPSize];
 701       }
 702       for(i = 0; i < numVertices*numCoords; i++)
 703          floatVPBuffer[i] = (float)pointer[i];
 704       glVertexPointer(numCoords, GL_FLOAT, stride, floatVPBuffer);
 705    }
 706    else
 707       glVertexPointer(numCoords, GL_FLOAT, stride, 0);
 708 }
 709
 710 void glesTexReuseIntVP(int numCoords)
 711 {
 712    glTexCoordPointer(numCoords, GL_SHORT, 0, floatVPBuffer);
 713 }
 714
 715 void glesTexReuseDoubleVP(int numCoords)
 716 {
 717    glTexCoordPointer(numCoords, GL_FLOAT, 0, floatVPBuffer);
 718 }
 719
 720 void glesColor3f( float r, float g, float b )
 721 {
 722    glColor4f(r, g, b, 1.0f);
 723 }
 724
 725 void glesColor4ub(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
 726 {
 727    glColor4f(r/255.0f, g/255.0f, b/255.0f, a/255.0f);
 728 }
 729
 730 void glesColor4fv(float * a)
 731 {
 732    glColor4f(a[0], a[1], a[2], a[3]);
 733 }
 734
 735 void glesBufferDatad(int target, int size, void * data, int usage)
 736 {
 737    int numElems = size/sizeof(double);
 738    double * dblPtr = (double *)data;
 739    int i;
 740    if (numElems > floatVPSize)
 741    {
 742       floatVPSize = numElems;
 743       floatVPBuffer = renew floatVPBuffer float[floatVPSize];
 744    }
 745    for (i=0; i< numElems; i++)
 746       floatVPBuffer[i] = (float)dblPtr[i];
 747
 748    glBufferData(target, numElems*sizeof(float), floatVPBuffer, usage);
 749 }
 750
 751 void glesBufferDatai(int target, int size, void * data, int usage)
 752 {
 753    int numElems = size/sizeof(unsigned int);
 754    unsigned int * pointer = (unsigned int *)data;
 755    int i;
 756    if (numElems > shortBDSize)
 757    {
 758       shortBDSize = numElems;
 759       shortBDBuffer = renew shortBDBuffer uint16[shortBDSize];
 760    }
 761    for (i=0; i< numElems; i++)
 762       shortBDBuffer[i] = (unsigned short)pointer[i];
 763
 764    glBufferData(target, numElems*sizeof(unsigned short), shortBDBuffer, usage);
 765 }
 766
 767 // *** Our Custom Matrix Stack ***
 768
 769 static void LoadCurMatrix()
 770 {
 771    double * i = matrixStack[curStack][matrixIndex[curStack]].array;
 772    float m[16] =
 773    {
 774       (float)i[0],(float)i[1],(float)i[2],(float)i[3],
 775       (float)i[4],(float)i[5],(float)i[6],(float)i[7],
 776       (float)i[8],(float)i[9],(float)i[10],(float)i[11],
 777       (float)i[12],(float)i[13],(float)i[14],(float)i[15]
 778    };
 779    glLoadMatrixf(m);
 780 }
 781
 782 void glesLoadIdentity()
 783 {
 784    matrixStack[curStack][matrixIndex[curStack]].Identity();
 785    LoadCurMatrix();
 786 }
 787
 788 void glesPushMatrix()
 789 {
 790    if(matrixIndex[curStack] + 1 < sizeof(matrixStack[0]) / sizeof(Matrix))
 791    {
 792       matrixIndex[curStack]++;
 793       memcpy(matrixStack[curStack][matrixIndex[curStack]].array, matrixStack[curStack][matrixIndex[curStack]-1].array, sizeof(Matrix));
 794    }
 795 }
 796
 797 void glesPopMatrix()
 798 {
 799    if(matrixIndex[curStack] > 0)
 800    {
 801       matrixIndex[curStack]--;
 802       LoadCurMatrix();
 803    }
 804 }
 805
 806 void glesLoadMatrixd(double * i)
 807 {
 808    memcpy(matrixStack[curStack][matrixIndex[curStack]].array, i, sizeof(Matrix));
 809    LoadCurMatrix();
 810 }
 811
 812 void glesOrtho( double l, double r, double b, double t, double n, double f )
 813 {
 814    Matrix m
 815    { {
 816       (2 / (r - l)), 0, 0, 0,
 817       0, (2 / (t - b)), 0, 0,
 818       0, 0, (-2 / (f - n)), 0,
 819       (-(r + l) / (r - l)), (-(t + b) / (t - b)), (-(f + n) / (f - n)), 1
 820    } };
 821    Matrix res;
 822    res.Multiply(m, matrixStack[curStack][matrixIndex[curStack]]);
 823    matrixStack[curStack][matrixIndex[curStack]] = res;
 824    LoadCurMatrix();
 825 }
 826
 827 void glesFrustum( double l, double r, double b, double t, double n, double f )
 828 {
 829    nearPlane = n;
 830    n = 1;
 831    l /= nearPlane;
 832    r /= nearPlane;
 833    b /= nearPlane;
 834    t /= nearPlane;
 835    f /= nearPlane;
 836    {
 837       double A = ((r + l) / (r - l));
 838       double B = ((t + b) / (t - b));
 839       double C = (-(f + n) / (f - n));
 840       double D = (-2*f*n/(f-n));
 841       Matrix m
 842       { {
 843          (2.0*n / (r - l)), 0, 0, 0,
 844          0, (2.0*n / (t - b)), 0, 0,
 845          A, B,             C,-1,
 846          0, 0,             D, 0
 847       } };
 848       Matrix res;
 849       res.Multiply(m, matrixStack[curStack][matrixIndex[curStack]]);
 850       matrixStack[curStack][matrixIndex[curStack]] = res;
 851       LoadCurMatrix();
 852    }
 853 }
 854
 855 void glesRotated( double a, double b, double c, double d )
 856 {
 857    Quaternion q;
 858    Matrix m, r;
 859
 860    q.RotationAxis({(float)b,(float)c,(float)-d}, a );
 861    m.RotationQuaternion(q);
 862    r.Multiply(m, matrixStack[curStack][matrixIndex[curStack]]);
 863    matrixStack[curStack][matrixIndex[curStack]] = r;
 864    LoadCurMatrix();
 865 }
 866 void glesScaled( double a, double b, double c )
 867 {
 868    Matrix m, r;
 869
 870    m.Identity();
 871    m.Scale(a,b,c);
 872    r.Multiply(m, matrixStack[curStack][matrixIndex[curStack]]);
 873    matrixStack[curStack][matrixIndex[curStack]] = r;
 874    LoadCurMatrix();
 875 }
 876
 877 void glesTranslated( double a, double b, double c )
 878 {
 879    Matrix m, r;
 880
 881    m.Identity();
 882    m.Translate(a,b,c);
 883    r.Multiply(m, matrixStack[curStack][matrixIndex[curStack]]);
 884    matrixStack[curStack][matrixIndex[curStack]] = r;
 885    LoadCurMatrix();
 886 }
 887
 888 void glesMultMatrixd( double * i )
 889 {
 890    Matrix r;
 891    r.Multiply((Matrix *)i, matrixStack[curStack][matrixIndex[curStack]]);
 892    matrixStack[curStack][matrixIndex[curStack]] = r;
 893    LoadCurMatrix();
 894 }
 895
 896 void glesMatrixMode(int mode)
 897 {
 898    curStack = (mode == GL_MODELVIEW) ? 0 : (mode == GL_PROJECTION) ? 1 : 2;
 899    glMatrixMode(mode);
 900 }
 901
 902 #define glPushMatrix          glesPushMatrix
 903 #define glPopMatrix           glesPopMatrix
 904 #define glLoadIdentity        glesLoadIdentity
 905 #define glMatrixMode          glesMatrixMode
 906
 907 /* Using the built-in matrix stack
 908 void glesLoadMatrixd( double * i )
 909 {
 910    float m[16] =
 911    {
 912       (float)i[0],(float)i[1],(float)i[2],(float)i[3],
 913       (float)i[4],(float)i[5],(float)i[6],(float)i[7],
 914       (float)i[8],(float)i[9],(float)i[10],(float)i[11],
 915       (float)i[12],(float)i[13],(float)i[14],(float)i[15]
 916    };
 917    glLoadMatrixf(m);
 918 }
 919
 920 void glesOrtho( double l, double r, double b, double t, double n, double f )
 921 {
 922    float matrix[4][4] =
 923    {
 924       { (float)(2 / (r - l)), 0, 0, 0 },
 925       { 0, (float)(2 / (t - b)), 0, 0 },
 926       { 0, 0, (float)(-2 / (f - n)), 0 },
 927       { (float)(-(r + l) / (r - l)), (float)(-(t + b) / (t - b)), (float)(-(f + n) / (f - n)), 1 }
 928    };
 929    glMultMatrixf((float *)matrix);
 930 }
 931
 932 void glesFrustum( double l, double r, double b, double t, double n, double f )
 933 {
 934    float A = (float)((r + l) / (r - l));
 935    float B = (float)((t + b) / (t - b));
 936    float C = (float)(-(f + n) / (f - n));
 937    float D = (float)(-2*f*n/(f-n));
 938    float matrix[4][4] =
 939    {
 940       { (float)(2*n / (r - l)), 0, 0, 0 },
 941       { 0, (float)(2*n / (t - b)), 0, 0 },
 942       { A, B,             C,-1 },
 943       { 0, 0,             D, 0 }
 944    };
 945    glMultMatrixf((float *)matrix);
 946 }
 947
 948 void glesRotated( double a, double b, double c, double d ) { glRotatef((float)a, (float)b, (float)c, (float)d); }
 949 void glesScaled( double a, double b, double c ) { glScalef((float)a, (float)b, (float)c); }
 950 void glesTranslated( double a, double b, double c ) { glTranslatef((float)a, (float)b, (float)c); }
 951
 952 void glesMultMatrixd( double * i )
 953 {
 954    float m[16] =
 955    {
 956       (float)i[0], (float)i[1], (float)i[2], (float)i[3],
 957       (float)i[4], (float)i[5], (float)i[6], (float)i[7],
 958       (float)i[8], (float)i[9], (float)i[10], (float)i[11],
 959       (float)i[12], (float)i[13], (float)i[14], (float)i[15]
 960    };
 961    glMultMatrixf(m);
 962 }
 963 */
 964
 965 // Need to do these...
 966 void glesVertex3f( float x, float y, float z )
 967 {
 968    numVertexCoords = 3;
 969    if(vertexCount + 4 > beginBufferSize)
 970    {
 971       beginBufferSize = beginBufferSize + beginBufferSize/2;
 972       vertexPointer = renew vertexPointer float[beginBufferSize * 5];
 973    }
 974
 975    vertexPointer[vertexCount*5+2] = x;
 976    vertexPointer[vertexCount*5+3] = y;
 977    vertexPointer[vertexCount*5+4] = z;
 978    vertexCount++;
 979
 980    if(beginMode == GL_QUADS && ((beginCount % 4) == 3))
 981    {
 982       vertexPointer[vertexCount*5+2] = vertexPointer[(vertexCount-4)*5+2];
 983       vertexPointer[vertexCount*5+3] = vertexPointer[(vertexCount-4)*5+3];
 984       vertexPointer[vertexCount*5+4] = vertexPointer[(vertexCount-4)*5+4];
 985       vertexCount++;
 986       vertexPointer[vertexCount*5+2] = vertexPointer[(vertexCount-3)*5+2];
 987       vertexPointer[vertexCount*5+3] = vertexPointer[(vertexCount-3)*5+3];
 988       vertexPointer[vertexCount*5+4] = vertexPointer[(vertexCount-3)*5+4];
 989       vertexCount++;
 990    }
 991    beginCount++;
 992 }
 993
 994 void glesVertex3d( double x, double y, double z )  { glesVertex3f((float)x, (float)y, (float)z); }
 995 void glesVertex3fv( float* coords )                { glesVertex3f(coords[0], coords[1], coords[2]); }
 996
 997 void glesNormal3f(float x, float y, float z)
 998 {
 999    normalCount = vertexCount;
1000    if(vertexCount + 4 > normalBufferSize)
1001    {
1002       normalBufferSize = normalBufferSize + normalBufferSize/2;
1003       normalPointer = renew normalPointer float[normalBufferSize * 2];
1004    }
1005
1006    normalPointer[normalCount*3+0] = x;
1007    normalPointer[normalCount*3+1] = y;
1008    normalPointer[normalCount*3+2] = z;
1009    normalCount++;
1010
1011    if(beginMode == GL_QUADS && ((beginCount % 4) == 3))
1012    {
1013       normalPointer[normalCount*3+0] = normalPointer[(normalCount-4)*3+0];
1014       normalPointer[normalCount*3+1] = normalPointer[(normalCount-4)*3+1];
1015       normalPointer[normalCount*3+2] = normalPointer[(normalCount-4)*3+2];
1016       normalCount++;
1017       normalPointer[normalCount*3+0] = normalPointer[(normalCount-3)*3+0];
1018       normalPointer[normalCount*3+1] = normalPointer[(normalCount-3)*3+1];
1019       normalPointer[normalCount*3+2] = normalPointer[(normalCount-3)*3+2];
1020       normalCount++;
1021    }
1022 }
1023 void glesNormal3fd(double x, double y, double z)         { glesNormal3f((float)x, (float)y, (float)z); }
1024 void glesNormal3fv(float * coords)                       { glesNormal3f(coords[0], coords[1], coords[2]); }
1025
1026 void glesColorMaterial(int a, int b)
1027 {
1028    PrintLn("glColorMaterial stub");
1029 }
1030
1031 void glesTerminate()
1032 {
1033    delete vertexPointer;
1034    delete normalPointer;
1035    beginBufferSize = 0;
1036
1037    delete floatVPBuffer;
1038    shortVPSize = 0;
1039
1040    delete shortVPBuffer;
1041    floatVPSize = 0;
1042
1043    delete shortBDBuffer;
1044    shortBDSize = 0;
1045 }
1046
1047 static GLuint stippleTexture;
1048 static bool stippleEnabled;
1049
1050 void glesLineStipple( int i, unsigned short j )
1051 {
1052    uint texture[1*16];
1053    int x;
1054    for(x = 0; x < 16; x++)
1055    {
1056       bool v = (j & (1 << x)) != 0;
1057       texture[x] = v ? 0xFFFFFFFF : 0;
1058    }
1059    if(!stippleTexture)
1060       glGenTextures(1, &stippleTexture);
1061    glBindTexture(GL_TEXTURE_2D, stippleTexture);
1062    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 16, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, texture);
1063    glEnable(GL_TEXTURE_2D);
1064    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
1065    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
1066    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
1067    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
1068    glMatrixMode(GL_TEXTURE);
1069    glLoadIdentity();
1070    //glTranslated(1.0/backAttrib->texW/2.0f, 1.0/backAttrib->texH/2.0f, 0.0f);
1071    glScaled(i/16.0, 1, 1.0f);
1072    glTranslated(0.5, 0.5, 0);
1073    glMatrixMode(GL_PROJECTION);
1074 }
1075
1076 void glesLightModeli( unsigned int pname, int param )
1077 {
1078    if(pname == GL_LIGHT_MODEL_TWO_SIDE)
1079       glLightModelf(GL_LIGHT_MODEL_TWO_SIDE, param);
1080 }
1081
1082 void glClearDepth( double depth ) { glClearDepthf((float)depth); }
1083 void glFogi( unsigned int pname, int param ) { }
1084 void glPolygonMode( unsigned int i, unsigned int j ) { }
1085
1086
1087 // *** Picking won't be supported for now ***
1088 void glPushName( unsigned int i ) { }
1089 void glLoadName( unsigned int i ) { }
1090 void glPopName() { }
1091
1092 // Probably replace by regular glBlendFunc ...
1093 void glBlendFuncSeparate(int a, int b, int c, int d)
1094 {
1095    glBlendFunc(a, b);
1096 }
1097
1098 // For direct pixel blitting...
1099 void glRasterPos2d(double a, double b) { }
1100 void glPixelZoom(float a, float b) { }
1101 void glDrawPixels(int a, int b, int c, int d, void * e) { }
1102
1103 #else
1104
1105 /* Non OpenGL ES friendly stuff
1106 #undef GL_UNSIGNED_INT
1107 #undef GL_DOUBLE
1108 #undef GL_INT
1109 //#undef GL_POLYGON
1110 //#undef GL_QUADS
1111 #undef GL_QUAD_STRIP
1112 #undef GL_POLYGON_STIPPLE
1113 #undef GL_LINE_STIPPLE
1114 #undef GL_LINE
1115 #undef GL_FILL
1116 #undef GL_ALL_ATTRIB_BITS
1117 #undef GL_LIGHT_MODEL_LOCAL_VIEWER
1118 */
1119
1120 #endif
1121
1122 #if !defined(__APPLE__)
1123 void (APIENTRY * glBindBufferARB) (GLenum target, GLuint buffer);
1124 void (APIENTRY * glGenBuffersARB) (GLsizei n, GLuint *buffers);
1125 void (APIENTRY * glDeleteBuffersARB) (GLsizei n, const GLuint *buffers);
1126 void (APIENTRY * glBufferDataARB) (GLenum target, int size, const GLvoid *data, GLenum usage);
1127 #endif
1128
1129 #endif
1130
1131 static int currentVertexBuffer;
1132
1133 bool GLSelectVBO(uint vbo)
1134 {
1135    if(currentVertexBuffer != vbo)
1136    {
1137       GLBindBuffer(GL_ARRAY_BUFFER, vbo);
1138       currentVertexBuffer = vbo;
1139       return true;
1140    }
1141    return false;
1142 }
1143
1144 void GLGenBuffers(int count, uint * buffer)
1145 {
1146 #ifdef __ANDROID__
1147    glGenBuffers(count, buffer);
1148 #else
1149 #if defined(__WIN32__)
1150    if(glGenBuffersARB)
1151 #endif
1152       glGenBuffersARB(count, buffer);
1153 #endif
1154 }
1155
1156 void GLDeleteBuffers(int count, GLuint * buffer)
1157 {
1158 #ifdef __ANDROID__
1159    glDeleteBuffers(count, buffer);
1160 #else
1161 #if defined(__WIN32__)
1162    if(glDeleteBuffersARB)
1163 #endif
1164       glDeleteBuffersARB(count, buffer);
1165 #endif
1166 }
1167
1168 void GLBindBuffer(int target, uint buffer)
1169 {
1170 #ifdef __ANDROID__
1171    glBindBuffer(target, buffer);
1172 #else
1173 #if defined(__WIN32__)
1174    if(glBindBufferARB)
1175 #endif
1176       glBindBufferARB(target, buffer);
1177 #endif
1178 }
1179
1180 public void GLVertexPointer(int numCoords, int glType, int stride, void *ptr, int numVertices)
1181 {
1182 #ifdef __ANDROID__
1183    if(type == GL_DOUBLE)
1184       glesVertexPointerd(numCoords, stride, pointer, numVertices);
1185    else if(type == GL_INT)
1186       glesVertexPointeri(numCoords, stride, pointer, numVertices);
1187    else
1188 #endif
1189       glVertexPointer(numCoords, glType, stride, ptr);
1190 }
1191
1192 public void GLBufferData(int type, GLenum target, int size, const GLvoid *data, GLenum usage)
1193 {
1194 #ifdef __ANDROID__
1195    if(type == GL_DOUBLE)
1196       glesBufferDatad(target, size, (void *)data, usage);
1197    else if(type == GL_UNSIGNED_INT)
1198       glesBufferDatai(target, size, (void *)data, usage);
1199    else
1200       glBufferData(target, size, data, usage);
1201 #else
1202
1203 #if defined(__WIN32__)
1204    if(glBufferDataARB)
1205 #endif
1206       glBufferDataARB(target, size, data, usage);
1207
1208 #endif
1209 }
1210
1211 static int displayWidth, displayHeight;
1212
1213 #define GL_CLAMP_TO_EDGE 0x812F
1214
1215 static bool vboAvailable;
1216
1217 static bool useSingleGLContext = false;
1218 class OGLDisplay : struct
1219 {
1220 #if defined(__WIN32__)
1221    HDC hdc;
1222    HGLRC glrc;
1223
1224    HBITMAP memBitmap;
1225    HDC memDC;
1226    byte * picture;
1227    uint stride;
1228    void * pBuffer;
1229    /*
1230    int imageBuffers[2];
1231    byte * pboMemory1, * pboMemory2;
1232    */
1233 #elif !defined(__ANDROID__)
1234    GLXContext glContext;
1235
1236    Pixmap pixmap;
1237    XShmSegmentInfo shminfo;
1238    XImage * image;
1239    XShmSegmentInfo shminfoShape;
1240    XImage * shapeImage;
1241    byte * picture;
1242    uint stride;
1243    GLXPbuffer pBuffer;
1244    X11Picture windowPicture;
1245    X11Picture pixmapPicture;
1246    Pixmap shapePixmap;
1247    X11Picture shapePicture;
1248 #endif
1249
1250    ColorAlpha * flippingBuffer;
1251    int flipBufH, flipBufW;
1252    bool depthWrite;
1253    int x, y;
1254 };
1255
1256 class OGLSystem : struct
1257 {
1258    int maxTextureSize;
1259    bool loadingFont;
1260    bool pow2textures;
1261 #if defined(__WIN32__)
1262    PIXELFORMATDESCRIPTOR pfd;
1263    int format;
1264    HDC hdc;
1265    HGLRC glrc;
1266    HWND hwnd;
1267 #elif !defined(__ANDROID__)
1268    XVisualInfo * visualInfo;
1269    GLXContext glContext;
1270    GLXDrawable glxDrawable;
1271 #endif
1272 };
1273
1274 class OGLSurface : struct
1275 {
1276    Font font;
1277    bool opaqueText;
1278    int xOffset;
1279    bool writingText;
1280
1281    float foreground[4], background[4], bitmapMult[4];
1282 } OGLSurface;
1283
1284 class OGLMesh : struct
1285 {
1286    uint vertices;
1287    uint normals;
1288    uint texCoords;
1289    uint texCoords2;
1290    uint colors;
1291 };
1292
1293 class OGLIndices : struct
1294 {
1295    uint16 * indices;
1296    uint buffer;
1297    uint nIndices;
1298 };
1299
1300 #if !defined(ECERE_NO3D) && !defined(ECERE_VANILLA)
1301 static int primitiveTypes[RenderPrimitiveType] =
1302 {
1303    GL_POINTS, GL_LINES, GL_TRIANGLES, GL_TRIANGLE_STRIP, GL_TRIANGLE_FAN, GL_QUADS, GL_QUAD_STRIP, GL_LINE_STRIP
1304 };
1305 #endif
1306
1307 int current;
1308 void * previous;
1309
1310 class OpenGLDisplayDriver : DisplayDriver
1311 {
1312    class_property(name) = "OpenGL";
1313
1314    bool LockSystem(DisplaySystem displaySystem)
1315    {
1316 #if !defined(__ANDROID__)
1317       OGLSystem oglSystem = displaySystem.driverData;
1318       if(useSingleGLContext) return true;
1319    #if defined(__WIN32__)
1320       wglMakeCurrent(oglSystem.hdc, oglSystem.glrc);
1321    #elif defined(__unix__) || defined(__APPLE__)
1322       //if(previous) return true;
1323       // printf("Making SYSTEM current\n");
1324       glXMakeCurrent(xGlobalDisplay, (GLXDrawable)oglSystem.glxDrawable, oglSystem.glContext);
1325       //previous = oglSystem.glContext;
1326    #endif
1327 #endif
1328       return true;
1329    }
1330
1331    void UnlockSystem(DisplaySystem displaySystem)
1332    {
1333       if(useSingleGLContext) return;
1334    #if defined(__WIN32__)
1335       wglMakeCurrent(null, null);
1336    #elif defined(__unix__) || defined(__APPLE__)
1337       // printf("Making NULL current\n");
1338       #if defined(__ANDROID__)
1339       #else
1340       glXMakeCurrent(xGlobalDisplay, None, null);
1341       #endif
1342       // previous = null;
1343    #endif
1344    }
1345
1346    bool Lock(Display display)
1347    {
1348 #if !defined(__ANDROID__)
1349       OGLDisplay oglDisplay = display.driverData;
1350       if(useSingleGLContext) return true;
1351    #if defined(__WIN32__)
1352       wglMakeCurrent(oglDisplay.hdc, oglDisplay.glrc);
1353    #elif defined(__unix__) || defined(__APPLE__)
1354       // if(previous) glXMakeCurrent(xGlobalDisplay, None, null);
1355       // printf("   Making DISPLAY current\n");
1356       glXMakeCurrent(xGlobalDisplay, (GLXDrawable)display.window, oglDisplay.glContext);
1357    #endif
1358 #endif
1359       return true;
1360    }
1361
1362    void Unlock(Display display)
1363    {
1364       if(useSingleGLContext) return;
1365       //printf("   Making NULL current\n");
1366       //glXMakeCurrent(xGlobalDisplay, None, null);
1367       // if(previous)
1368          LockSystem(display.displaySystem);
1369    }
1370
1371    void DestroyDisplay(Display display)
1372    {
1373       OGLDisplay oglDisplay = display.driverData;
1374
1375       if(oglDisplay)
1376       {
1377    #if defined(__WIN32__)
1378          wglMakeCurrent( null, null );
1379
1380          if(oglDisplay.glrc)
1381             wglDeleteContext(oglDisplay.glrc);
1382
1383          if(oglDisplay.hdc && oglDisplay.pBuffer)
1384             wglReleasePbufferDCARB(oglDisplay.pBuffer, oglDisplay.hdc);
1385
1386          if(oglDisplay.pBuffer)
1387             wglDestroyPbufferARB(oglDisplay.pBuffer);
1388
1389          if(oglDisplay.hdc)
1390             ReleaseDC(display.window, oglDisplay.hdc);
1391
1392          if(oglDisplay.memDC) DeleteDC(oglDisplay.memDC);
1393          if(oglDisplay.memBitmap) DeleteObject(oglDisplay.memBitmap);
1394
1395    #elif defined(__unix__) || defined(__APPLE__)
1396       #if defined(__ANDROID__)
1397       #else
1398          if(oglDisplay.shapePixmap)
1399             XFreePixmap(xGlobalDisplay, oglDisplay.shapePixmap);
1400          if(oglDisplay.pixmap)
1401             XFreePixmap(xGlobalDisplay, oglDisplay.pixmap);
1402          if(oglDisplay.image)
1403          {
1404             if(oglDisplay.shminfoShape.shmid != -1)
1405             {
1406                XShmDetach(xGlobalDisplay, &oglDisplay.shminfo);
1407                if(oglDisplay.shminfo.shmaddr != (void *)-1)
1408                   shmdt(oglDisplay.shminfo.shmaddr);
1409                shmctl(oglDisplay.shminfo.shmid, IPC_RMID, 0);
1410             }
1411          }
1412          if(oglDisplay.shapeImage)
1413          {
1414             if(oglDisplay.shminfoShape.shmid != -1)
1415             {
1416                XShmDetach(xGlobalDisplay, &oglDisplay.shminfoShape);
1417                if(oglDisplay.shminfoShape.shmaddr != (void *)-1)
1418                   shmdt(oglDisplay.shminfoShape.shmaddr);
1419                shmctl(oglDisplay.shminfoShape.shmid, IPC_RMID, 0);
1420             }
1421             XDestroyImage(oglDisplay.shapeImage);
1422             oglDisplay.shapeImage = None;
1423          }
1424
1425          glXMakeCurrent(xGlobalDisplay, None, null);
1426
1427          if(oglDisplay.glContext)
1428             glXDestroyContext(xGlobalDisplay, oglDisplay.glContext);
1429       #endif
1430    #endif
1431          delete oglDisplay.flippingBuffer;
1432          delete oglDisplay;
1433          display.driverData = null;
1434       }
1435    }
1436
1437    void ::CheckExtensions(OGLSystem oglSystem)
1438    {
1439       const char * extensions = (const char *)glGetString(GL_EXTENSIONS);
1440       if(extensions)
1441          oglSystem.pow2textures = strstr(extensions, "GL_ARB_texture_non_power_of_two") ? false : true;
1442       glGetIntegerv(GL_MAX_TEXTURE_SIZE, &oglSystem.maxTextureSize);
1443    }
1444
1445    bool CreateDisplaySystem(DisplaySystem displaySystem)
1446    {
1447       bool result = false;
1448       OGLSystem oglSystem = displaySystem.driverData = OGLSystem { };
1449
1450    #ifdef __WIN32__
1451       oglSystem.hwnd = CreateWindow("static", null, 0,0,0,0,0,null,null,null,null);
1452
1453       oglSystem.hdc = GetDC(oglSystem.hwnd);
1454       if(oglSystem.hdc)
1455       {
1456
1457          oglSystem.pfd.nSize = (short)sizeof(oglSystem.pfd);
1458          oglSystem.pfd.nVersion = 1;
1459          oglSystem.pfd.dwFlags = PFD_DRAW_TO_WINDOW /*PFD_DRAW_TO_BITMAP*/ | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
1460          oglSystem.pfd.iPixelType = PFD_TYPE_RGBA;
1461          oglSystem.pfd.cColorBits = 24;
1462          oglSystem.pfd.cAlphaBits = 8;
1463          oglSystem.pfd.cDepthBits = 24;
1464          oglSystem.pfd.iLayerType = PFD_MAIN_PLANE;
1465
1466          oglSystem.format = ChoosePixelFormat(oglSystem.hdc, &oglSystem.pfd);
1467          DescribePixelFormat(oglSystem.hdc, oglSystem.format, sizeof(oglSystem.pfd), &oglSystem.pfd);
1468
1469          if(oglSystem.pfd.cColorBits > 8)
1470          {
1471             SetPixelFormat(oglSystem.hdc, oglSystem.format, &oglSystem.pfd);
1472             oglSystem.glrc = wglCreateContext(oglSystem.hdc);
1473             if(oglSystem.glrc)
1474             {
1475                wglMakeCurrent(oglSystem.hdc, oglSystem.glrc);
1476
1477                  // Get Pointers To The GL Functions
1478                glActiveTextureARB = (void *) wglGetProcAddress("glActiveTextureARB");
1479                glMultiTexCoord2fARB = (void *) wglGetProcAddress("glMultiTexCoord2fARB");
1480                glClientActiveTextureARB = (void *) wglGetProcAddress("glClientActiveTextureARB");
1481                glLockArraysEXT = (void *) wglGetProcAddress("glLockArraysEXT" );
1482                glUnlockArraysEXT = (void *) wglGetProcAddress("glUnlockArraysEXT");
1483                  glGenBuffersARB = (void *) wglGetProcAddress("glGenBuffersARB");
1484                  glBindBufferARB = (void *) wglGetProcAddress("glBindBufferARB");
1485                  glBufferDataARB = (void *) wglGetProcAddress("glBufferDataARB");
1486                glMapBufferARB  = (void *) wglGetProcAddress("glMapBufferARB");
1487                glUnmapBufferARB  = (void *) wglGetProcAddress("glUnmapBufferARB");
1488                  glDeleteBuffersARB = (void *) wglGetProcAddress("glDeleteBuffersARB");
1489                glBlendFuncSeparate = (void *) wglGetProcAddress("glBlendFuncSeparate");
1490
1491                wglChoosePixelFormatARB = (void *) wglGetProcAddress("wglChoosePixelFormatARB");
1492                wglGetExtensionsStringARB = (void *)wglGetProcAddress("wglGetExtensionsStringARB");
1493                wglCreatePbufferARB = (void *)wglGetProcAddress("wglCreatePbufferARB");
1494                wglGetPbufferDCARB = (void *)wglGetProcAddress("wglGetPbufferDCARB");
1495                wglQueryPbufferARB = (void *)wglGetProcAddress("wglQueryPbufferARB");
1496                wglDestroyPbufferARB = (void *)wglGetProcAddress("wglDestroyPbufferARB");
1497                wglReleasePbufferDCARB = (void *)wglGetProcAddress("wglReleasePbufferDCARB");
1498                wglBindTexImageARB = (void *)wglGetProcAddress("wglBindTexImageARB");
1499                wglReleaseTexImageARB = (void *)wglGetProcAddress("wglReleaseTexImageARB");
1500
1501                wglSwapIntervalEXT = (void *)wglGetProcAddress("wglSwapIntervalEXT");
1502
1503                vboAvailable = glBindBufferARB != null;
1504
1505                // eSystem_LoggingMode(LOG_MSGBOX, null);
1506
1507                if(wglChoosePixelFormatARB)
1508                {
1509                     int pixelFormat;
1510                     int valid;
1511                     int numFormats;
1512                     float fAttributes[] = {0,0};
1513                     int iAttributes[] =
1514                   {
1515                      WGL_DRAW_TO_WINDOW_ARB,GL_TRUE,
1516                             WGL_SUPPORT_OPENGL_ARB,GL_TRUE,
1517                             WGL_ACCELERATION_ARB,WGL_FULL_ACCELERATION_ARB,
1518                             WGL_COLOR_BITS_ARB,24,
1519                             WGL_ALPHA_BITS_ARB,8,
1520                             WGL_DEPTH_BITS_ARB,16,
1521                             WGL_STENCIL_BITS_ARB,0,
1522                             WGL_DOUBLE_BUFFER_ARB,GL_TRUE,
1523                             WGL_SAMPLE_BUFFERS_ARB,GL_TRUE,
1524                             WGL_SAMPLES_ARB, 4,                                         // Check For 4x Multisampling
1525                             0,0
1526                   };
1527
1528                   //Log("Found wglChoosePixelFormatARB\n");
1529
1530                     valid = wglChoosePixelFormatARB(oglSystem.hdc,iAttributes,fAttributes,1,&pixelFormat,&numFormats);
1531                     if(!valid || !numFormats)
1532                     {
1533                      //Log("Can't find 4x multi sampling\n");
1534                        iAttributes[19] = 2;
1535                        valid = wglChoosePixelFormatARB(oglSystem.hdc,iAttributes,fAttributes,1,&pixelFormat,&numFormats);
1536                      if(!valid || !numFormats)
1537                      {
1538                         // Log("Can't find 2x multi sampling\n");
1539                         iAttributes[16] = 0;
1540                         iAttributes[17] = 0;
1541                         valid = wglChoosePixelFormatARB(oglSystem.hdc,iAttributes,fAttributes,1,&pixelFormat,&numFormats);
1542                      }
1543                     }
1544                   if(valid && numFormats)
1545                   {
1546                      oglSystem.format = pixelFormat;
1547                      wglMakeCurrent(null, null);
1548                      wglDeleteContext(oglSystem.glrc);
1549
1550                      // *** DescribePixelFormat does not support WGL pixel formats! ***
1551                      //DescribePixelFormat(oglSystem.hdc, oglSystem.format, sizeof(oglSystem.pfd), &oglSystem.pfd);
1552                      SetPixelFormat(oglSystem.hdc, oglSystem.format, &oglSystem.pfd);
1553                      //Log("Successfully set pixel format\n");
1554
1555                      oglSystem.glrc = wglCreateContext(oglSystem.hdc);
1556                      wglMakeCurrent(oglSystem.hdc, oglSystem.glrc);
1557                   }
1558                }
1559                /*else
1560                   eSystem_Logf("Can't find wglChoosePixelFormatARB\n");*/
1561
1562                result = true;
1563
1564                CheckExtensions(oglSystem);
1565
1566                wglMakeCurrent(null, null);
1567
1568                //eSystem_DumpErrors(true);
1569             }
1570          }
1571       }
1572    #elif defined(__unix__) || defined(__APPLE__)
1573       vboAvailable = true;
1574       #if defined(__ANDROID__)
1575          egl_init_display(guiApp.desktop.windowHandle);
1576          CheckExtensions(oglSystem);
1577          result = true;
1578       #else
1579       {
1580          X11Window root = RootWindow( xGlobalDisplay, DefaultScreen( xGlobalDisplay ) );
1581          XSetWindowAttributes attr;
1582          unsigned long mask;
1583
1584          int attrList[] =
1585          {
1586       #ifndef ECERE_MINIGLX
1587             GLX_USE_GL, GLX_DEPTH_SIZE, 1,
1588       #endif
1589             GLX_RGBA,
1590             GLX_RED_SIZE, 1, GLX_GREEN_SIZE, 1, GLX_BLUE_SIZE, 1,
1591             GLX_DOUBLEBUFFER,
1592             None
1593          };
1594          oglSystem.visualInfo = glXChooseVisual( xGlobalDisplay,  DefaultScreen( xGlobalDisplay ), attrList );
1595          attr.background_pixel = 0;
1596          attr.border_pixel = 0;
1597          attr.colormap = XCreateColormap( xGlobalDisplay, root, oglSystem.visualInfo->visual, AllocNone);
1598          attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
1599          mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
1600
1601          oglSystem.glxDrawable = XCreateWindow( xGlobalDisplay, root, 0, 0, 1, 1, 0, oglSystem.visualInfo->depth, InputOutput,
1602             oglSystem.visualInfo->visual, mask, &attr );
1603       }
1604       if(oglSystem.visualInfo)
1605       {
1606          oglSystem.glContext = glXCreateContext(xGlobalDisplay, oglSystem.visualInfo, null, True);
1607          if(oglSystem.glContext)
1608          {
1609             glXMakeCurrent(xGlobalDisplay, oglSystem.glxDrawable, oglSystem.glContext);
1610             // Setup Extensions
1611             CheckExtensions(oglSystem);
1612             glXMakeCurrent(xGlobalDisplay, None, null);
1613             result = true;
1614          }
1615       }
1616       #endif
1617    #endif
1618
1619       displaySystem.flags.alpha = true;
1620       displaySystem.flags.flipping = true;
1621       displaySystem.pixelFormat = pixelFormat888;
1622       return result;
1623    }
1624
1625    void DestroyDisplaySystem(DisplaySystem displaySystem)
1626    {
1627       OGLSystem oglSystem = displaySystem.driverData;
1628
1629    #if defined(__WIN32__)
1630       wglMakeCurrent( null, null );
1631
1632       if(oglSystem.glrc)
1633          wglDeleteContext(oglSystem.glrc);
1634
1635       if(oglSystem.hdc)
1636          ReleaseDC(oglSystem.hwnd, oglSystem.hdc);
1637       DestroyWindow(oglSystem.hwnd);
1638
1639    #elif defined(__unix__) || defined(__APPLE__)
1640       #if defined(__ANDROID__)
1641          egl_term_display();
1642       #else
1643       if(oglSystem.visualInfo)
1644       {
1645    #ifdef   ECERE_MINIGLX
1646          __miniglx_XFree(oglSystem.visualInfo);
1647    #else
1648          XFree(oglSystem.visualInfo);
1649    #endif
1650       }
1651
1652       if(oglSystem.glxDrawable)
1653       {
1654          XDestroyWindow(xGlobalDisplay, oglSystem.glxDrawable);
1655          oglSystem.glxDrawable = 0;
1656       }
1657       #endif
1658    #endif
1659       delete oglSystem;
1660    }
1661
1662    bool CreateDisplay(Display display)
1663    {
1664       bool result = false;
1665       OGLDisplay oglDisplay = display.driverData;
1666 #if !defined(__ANDROID__)
1667       OGLSystem oglSystem = display.displaySystem.driverData;
1668 #endif
1669       if(!oglDisplay)
1670          oglDisplay = display.driverData = OGLDisplay { };
1671       //printf("Inside CreateDisplay\n");
1672
1673 #if defined(__WIN32__) || defined(USEPBUFFER)
1674       if(!display.alphaBlend)
1675 #endif
1676       {
1677    #if defined(__WIN32__)
1678          oglDisplay.hdc = GetDC(display.window);
1679          SetPixelFormat(oglDisplay.hdc, oglSystem.format, &oglSystem.pfd);
1680          if((oglDisplay.glrc = wglCreateContext(oglDisplay.hdc)))
1681          {
1682             wglShareLists(oglSystem.glrc, oglDisplay.glrc);
1683             wglMakeCurrent(oglDisplay.hdc, oglDisplay.glrc);
1684             result = true;
1685          }
1686          else
1687             ReleaseDC(display.window, oglDisplay.hdc);
1688    #elif defined(__unix__) || defined(__APPLE__)
1689       #if defined(__ANDROID__)
1690       #else
1691          XVisualInfo * visualInfo = ((XWindowData)display.windowDriverData).visual;
1692          /*
1693 #if defined(__APPLE__)
1694          XVisualInfo template = { 0 };
1695          XWindowAttributes winAttr;
1696          int n;
1697          XGetWindowAttributes(xGlobalDisplay, (X11Window)display.window, &winAttr);
1698          template.visualid = XVisualIDFromVisual(winAttr.visual);
1699          visualInfo = XGetVisualInfo(xGlobalDisplay, VisualIDMask, &template, &n);
1700 #ifdef _DEBUG
1701          printf("XGetVisualInfo visual ID = %d\n", template.visualid);
1702          printf("visualInfo visual ID = %d\n", visualInfo->visualid);
1703          printf("oglSystem.visualInfo visual ID = %d\n", oglSystem.visualInfo->visualid);
1704          printf("((XWindowData)display.windowDriverData).visual visual ID = %d\n", ((XWindowData)display.windowDriverData).visual->visualid);
1705 #endif
1706          // visualInfo = oglSystem.visualInfo;
1707 //#endif
1708          */
1709          if(visualInfo)
1710          {
1711             //printf("visualInfo is not null\n");
1712             // printf("Creating Display Context, sharing with %x!\n", oglSystem.glContext);
1713             oglDisplay.glContext = glXCreateContext(xGlobalDisplay, visualInfo, oglSystem.glContext, True);
1714             //XFree(visualInfo);
1715          }
1716
1717          // oglDisplay.glContext = glXCreateContext(xGlobalDisplay, oglSystem.visualInfo, oglSystem.glContext, True);
1718          if(oglDisplay.glContext)
1719          {
1720             //printf("CreateDisplay Got a Context\n");
1721             glXMakeCurrent(xGlobalDisplay, (GLXDrawable)display.window, oglDisplay.glContext);
1722             result = true;
1723          }
1724       #endif
1725    #endif
1726       }
1727 #if defined(__WIN32__) || defined(USEPBUFFER)
1728       else
1729          result = true;
1730 #endif
1731       if(result)
1732       {
1733 #if defined(__WIN32__)
1734          if(glBlendFuncSeparate)
1735             glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
1736          else
1737             glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1738 #else
1739 #if !defined(__OLDX__)
1740           glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
1741 #else
1742          glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
1743 #endif
1744 #endif
1745          glEnable(GL_BLEND);
1746
1747          glMatrixMode(GL_MODELVIEW);
1748          glScaled(1.0, 1.0, -1.0);
1749          // glTranslatef(0.375f, 0.375f, 0.0f);
1750          // glTranslatef(-0.625f, -0.625f, 0.0f);
1751          glMatrixMode(GL_PROJECTION);
1752          glShadeModel(GL_FLAT);
1753
1754          // glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, true);
1755          glLightModeli(GL_LIGHT_MODEL_COLOR_CONTROL, GL_SEPARATE_SPECULAR_COLOR);
1756          glFogi(GL_FOG_MODE, GL_EXP);
1757          glFogf(GL_FOG_DENSITY, 0);
1758          glEnable(GL_NORMALIZE);
1759          glDepthFunc(GL_LESS);
1760          glClearDepth(1.0);
1761          glDisable(GL_MULTISAMPLE_ARB);
1762       }
1763 #if !defined(ECERE_NO3D) && !defined(ECERE_VANILLA)
1764       display.ambient = Color { 50,50,50 };
1765 #endif
1766
1767       if(!useSingleGLContext)
1768       {
1769    #if defined(__WIN32__)
1770          wglMakeCurrent(null, null);
1771    #elif defined(__unix__) || defined(__APPLE__)
1772       #if defined(__ANDROID__)
1773          result = true;
1774       #else
1775          glXMakeCurrent(xGlobalDisplay, None, null);
1776       #endif
1777    #endif
1778       }
1779
1780       return result;
1781    }
1782
1783    bool DisplaySize(Display display, int width, int height)
1784    {
1785       OGLDisplay oglDisplay = display.driverData;
1786
1787       bool result = false;
1788
1789       //printf("Inside DisplaySize\n");
1790 #if defined(__WIN32__) || defined(USEPBUFFER)
1791       OGLSystem oglSystem = display.displaySystem.driverData;
1792       if(display.alphaBlend)
1793       {
1794 #if defined(__WIN32__)
1795          const int attributes[]=
1796          {
1797             /*WGL_TEXTURE_FORMAT_ARB, WGL_TEXTURE_RGBA_ARB,
1798             WGL_TEXTURE_TARGET_ARB, WGL_TEXTURE_2D_ARB, */0
1799          };
1800          int pixelFormat = 0;
1801          if(wglChoosePixelFormatARB)
1802          {
1803             int valid;
1804             int numFormats;
1805             float fAttributes[] = {0,0};
1806             int iAttributes[] =
1807             {
1808                //WGL_DRAW_TO_BITMAP_ARB, GL_TRUE,
1809                WGL_DRAW_TO_PBUFFER_ARB,GL_TRUE,
1810                     WGL_SUPPORT_OPENGL_ARB,GL_TRUE,
1811                     WGL_ACCELERATION_ARB,WGL_FULL_ACCELERATION_ARB,
1812                     WGL_COLOR_BITS_ARB,24,
1813                     WGL_ALPHA_BITS_ARB,8,
1814                     WGL_DEPTH_BITS_ARB,16,
1815                     WGL_STENCIL_BITS_ARB,0,
1816                     WGL_DOUBLE_BUFFER_ARB,GL_FALSE,
1817                     WGL_SAMPLE_BUFFERS_ARB,GL_TRUE,
1818                     WGL_SAMPLES_ARB, 4,                                         // Check For 4x Multisampling
1819                     0,0
1820             };
1821
1822             //Log("Found wglChoosePixelFormatARB\n");
1823
1824             valid = wglChoosePixelFormatARB(oglSystem.hdc,iAttributes,fAttributes,1,&pixelFormat,&numFormats);
1825             if(!valid || !numFormats)
1826             {
1827                //Log("Can't find 4x multi sampling\n");
1828                iAttributes[19] = 2;
1829                valid = wglChoosePixelFormatARB(oglSystem.hdc,iAttributes,fAttributes,1,&pixelFormat,&numFormats);
1830                if(!valid || !numFormats)
1831                {
1832                   // Log("Can't find 2x multi sampling\n");
1833                   iAttributes[16] = 0;
1834                   iAttributes[17] = 0;
1835                   valid = wglChoosePixelFormatARB(oglSystem.hdc,iAttributes,fAttributes,1,&pixelFormat,&numFormats);
1836                   if(!valid || !numFormats)
1837                   {
1838                      int iAttributes[] =
1839                      {
1840                         WGL_DRAW_TO_PBUFFER_ARB,GL_TRUE,
1841                         //WGL_DRAW_TO_BITMAP_ARB,GL_TRUE,
1842                         WGL_SUPPORT_OPENGL_ARB,GL_TRUE,
1843                         WGL_COLOR_BITS_ARB,24,
1844                         WGL_ALPHA_BITS_ARB,8,
1845                         WGL_DEPTH_BITS_ARB,16,
1846                         0,0
1847                      };
1848                      valid = wglChoosePixelFormatARB(oglSystem.hdc,iAttributes,fAttributes,1,&pixelFormat,&numFormats);
1849                   }
1850                }
1851             }
1852             if(valid && numFormats)
1853             {
1854                wglMakeCurrent(null, null);
1855             }
1856          }
1857
1858          wglMakeCurrent( null, null );
1859          wglMakeCurrent( oglDisplay.hdc, oglDisplay.glrc );
1860          if(oglDisplay.hdc && oglDisplay.pBuffer)
1861             wglReleasePbufferDCARB(oglDisplay.pBuffer, oglDisplay.hdc);
1862
1863          wglDestroyPbufferARB(oglDisplay.pBuffer);
1864
1865          if(!useSingleGLContext)
1866             wglMakeCurrent( null, null );
1867
1868          if(oglDisplay.glrc)
1869             wglDeleteContext(oglDisplay.glrc);
1870
1871          oglDisplay.pBuffer = wglCreatePbufferARB(oglSystem.hdc, pixelFormat, width, height, attributes);
1872          oglDisplay.hdc = wglGetPbufferDCARB(oglDisplay.pBuffer);
1873          if((oglDisplay.glrc = wglCreateContext(oglDisplay.hdc)))
1874          {
1875             BITMAPINFO * info;
1876             HDC hdc = GetDC(display.window);
1877
1878             wglShareLists(oglSystem.glrc, oglDisplay.glrc);
1879             wglMakeCurrent(oglDisplay.hdc, oglDisplay.glrc);
1880
1881             //wglQueryPbufferARB(pBuffer, WGL_PBUFFER_WIDTH_ARB, &width);
1882             //wglQueryPbufferARB(pBuffer, WGL_PBUFFER_HEIGHT_ARB, &height);
1883
1884             // glDeleteBuffersARB(2, oglDisplay.imageBuffers);
1885
1886             if((info = (BITMAPINFO *)new0 byte[sizeof(BITMAPINFOHEADER)+sizeof(RGBQUAD)*256]))
1887             {
1888                HBITMAP newBitmap;
1889
1890                if(oglDisplay.memDC) DeleteDC(oglDisplay.memDC);
1891                oglDisplay.memDC = CreateCompatibleDC(hdc);
1892                SetMapMode(oglDisplay.memDC, MM_TEXT);
1893                info->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1894                info->bmiHeader.biPlanes = 1;
1895                info->bmiHeader.biCompression = BI_RGB;
1896                info->bmiHeader.biBitCount = 32; //(uint16)GetDeviceCaps(hdc, BITSPIXEL);
1897                info->bmiHeader.biWidth = width;
1898                info->bmiHeader.biHeight = height;
1899                newBitmap = CreateDIBSection(hdc, info, DIB_RGB_COLORS, &oglDisplay.picture, null, 0);
1900                if(newBitmap)
1901                {
1902                   SelectObject(oglDisplay.memDC, newBitmap);
1903                   if(oglDisplay.memBitmap) DeleteObject(oglDisplay.memBitmap);
1904                   /*
1905                   {
1906                      PIXELFORMATDESCRIPTOR pfd = { 0 };
1907                      pfd.nSize = (short)sizeof(pfd);
1908                      pfd.nVersion = 1;
1909                      pfd.dwFlags = PFD_DRAW_TO_BITMAP | PFD_SUPPORT_OPENGL;
1910                      pfd.iPixelType = PFD_TYPE_RGBA;
1911                      pfd.cColorBits = 32;
1912                      //pfd.cAlphaBits = 8;
1913                      pfd.cDepthBits = 24;
1914                      pfd.iLayerType = PFD_MAIN_PLANE;
1915
1916                      oglDisplay.hdc = oglDisplay.memDC;
1917
1918                      pixelFormat = ChoosePixelFormat(oglSystem.hdc, &pfd);
1919                      DescribePixelFormat(oglDisplay.hdc, pixelFormat, sizeof(pfd), &pfd);
1920                      SetPixelFormat(oglDisplay.hdc, pixelFormat, &pfd);
1921
1922                      oglDisplay.glrc = wglCreateContext(oglDisplay.hdc);
1923                      wglShareLists(oglSystem.glrc, oglDisplay.glrc);
1924                      wglMakeCurrent(oglDisplay.hdc, oglDisplay.glrc);
1925                   }
1926                   */
1927                   /*
1928                   {
1929                      const int imageSize = width * height * 4;
1930
1931                      glGenBuffersARB(2, oglDisplay.imageBuffers);
1932
1933                      glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, oglDisplay.imageBuffers[0]);
1934                      glBufferDataARB(GL_PIXEL_PACK_BUFFER_ARB, imageSize, null, GL_STREAM_READ);
1935                      // glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, oglDisplay.imageBuffers[1]);
1936                      // glBufferDataARB(GL_PIXEL_PACK_BUFFER_ARB, imageSize / 2, null, GL_STREAM_READ);
1937                   }
1938                   */
1939                   oglDisplay.memBitmap = newBitmap;
1940                   oglDisplay.stride = width;
1941
1942                   result = true;
1943                }
1944                delete info;
1945             }
1946             ReleaseDC(display.window, hdc);
1947          }
1948 #elif defined(__unix__) || defined(__APPLE__)
1949       #if defined(__ANDROID__)
1950          result = true;
1951       #else
1952         int attrib[] =
1953         {
1954                 GLX_DOUBLEBUFFER,  True,
1955             GLX_DEPTH_SIZE,    1,
1956                 GLX_RED_SIZE,      8,
1957                 GLX_GREEN_SIZE,    8,
1958                 GLX_BLUE_SIZE,     8,
1959                 GLX_ALPHA_SIZE,    8,
1960                 GLX_STENCIL_SIZE,  1,
1961                 //GLX_DEPTH_SIZE,    24,
1962                 GLX_RENDER_TYPE,   GLX_RGBA_BIT,
1963                 GLX_DRAWABLE_TYPE, GLX_PBUFFER_BIT | GLX_WINDOW_BIT,
1964                 None
1965         };
1966
1967         int PBattrib[] =
1968         {
1969                 GLX_PBUFFER_WIDTH,   width,
1970                 GLX_PBUFFER_HEIGHT,  height,
1971                 GLX_LARGEST_PBUFFER, False,
1972             None
1973         };
1974
1975         // choose a pixel format that meets our minimum requirements
1976         int count = 0;
1977
1978         GLXFBConfig *config = glXChooseFBConfig(xGlobalDisplay, DefaultScreen(xGlobalDisplay), attrib, &count);
1979          if(config)
1980          {
1981             if(oglDisplay.pixmap)
1982             {
1983                XFreePixmap(xGlobalDisplay, oglDisplay.pixmap);
1984                oglDisplay.pixmap = None;
1985             }
1986             if(oglDisplay.shapePixmap)
1987             {
1988                XFreePixmap(xGlobalDisplay, oglDisplay.shapePixmap);
1989                oglDisplay.shapePixmap = None;
1990             }
1991
1992             // Free Shared Memory Pixmap
1993             if(oglDisplay.image)
1994             {
1995                if(oglDisplay.shminfoShape.shmid != -1)
1996                {
1997                   XShmDetach(xGlobalDisplay, &oglDisplay.shminfo);
1998                   if(oglDisplay.shminfo.shmaddr != (void *)-1)
1999                      shmdt(oglDisplay.shminfo.shmaddr);
2000                   shmctl(oglDisplay.shminfo.shmid, IPC_RMID, 0);
2001                }
2002                XDestroyImage(oglDisplay.image);
2003                oglDisplay.image = None;
2004             }
2005             if(oglDisplay.shapeImage)
2006             {
2007                if(oglDisplay.shminfoShape.shmid != -1)
2008                {
2009                   XShmDetach(xGlobalDisplay, &oglDisplay.shminfoShape);
2010                   if(oglDisplay.shminfoShape.shmaddr != (void *)-1)
2011                      shmdt(oglDisplay.shminfoShape.shmaddr);
2012                   shmctl(oglDisplay.shminfoShape.shmid, IPC_RMID, 0);
2013                }
2014                XDestroyImage(oglDisplay.shapeImage);
2015                oglDisplay.shapeImage = None;
2016             }
2017
2018             if(oglDisplay.windowPicture)
2019                XRenderFreePicture(xGlobalDisplay, oglDisplay.windowPicture);
2020             if(oglDisplay.pixmapPicture)
2021                XRenderFreePicture(xGlobalDisplay, oglDisplay.pixmapPicture);
2022
2023             if(oglDisplay.pixmap)
2024                XFreePixmap(xGlobalDisplay, oglDisplay.pixmap);
2025
2026             if(oglDisplay.glContext)
2027                   glXDestroyContext(xGlobalDisplay, oglDisplay.glContext);
2028             if(oglDisplay.pBuffer)
2029                glXDestroyPbuffer(xGlobalDisplay, oglDisplay.pBuffer);
2030
2031                 oglDisplay.pBuffer = glXCreatePbuffer(xGlobalDisplay, config[0], PBattrib);
2032             if(oglDisplay.pBuffer)
2033             {
2034                    oglDisplay.glContext = glXCreateNewContext(xGlobalDisplay, config[0], GLX_RGBA_TYPE, oglSystem.glContext, True);
2035                if(oglDisplay.glContext)
2036                {
2037                   glXMakeCurrent(xGlobalDisplay, None, null);
2038                   glXMakeCurrent(xGlobalDisplay, (GLXDrawable)display.window, oglDisplay.glContext);
2039
2040                   // Initialize Shared Memory Pixmap
2041                   oglDisplay.image = XShmCreateImage(xGlobalDisplay, DefaultVisual(xGlobalDisplay, DefaultScreen(xGlobalDisplay)), 32,
2042                      ZPixmap, null, &oglDisplay.shminfo, width, height);
2043                   if(oglDisplay.image)
2044                   {
2045                      oglDisplay.shminfo.shmid = shmget(IPC_PRIVATE,
2046                         oglDisplay.image->bytes_per_line * oglDisplay.image->height, IPC_CREAT|0777);
2047                      if(oglDisplay.shminfo.shmid != -1)
2048                      {
2049                         oglDisplay.shminfo.shmaddr = shmat(oglDisplay.shminfo.shmid, 0, 0);
2050                         if(oglDisplay.shminfo.shmaddr != (void *)-1)
2051                         {
2052                            oglDisplay.shminfo.readOnly = False;
2053                            if(XShmAttach(xGlobalDisplay, &oglDisplay.shminfo))
2054                            {
2055                               oglDisplay.pixmap = XShmCreatePixmap(xGlobalDisplay, (X11Window)display.window, oglDisplay.shminfo.shmaddr,
2056                                  &oglDisplay.shminfo, width, height, 32);
2057
2058                               // Initialize Shared Memory Shape Pixmap
2059                               oglDisplay.shapeImage = XShmCreateImage(xGlobalDisplay, DefaultVisual(xGlobalDisplay, DefaultScreen(xGlobalDisplay)), 1,
2060                                  ZPixmap, null, &oglDisplay.shminfoShape, width, height);
2061                               if(oglDisplay.shapeImage)
2062                               {
2063                                  oglDisplay.shminfoShape.shmid = shmget(IPC_PRIVATE,
2064                                     oglDisplay.shapeImage->bytes_per_line * oglDisplay.shapeImage->height, IPC_CREAT|0777);
2065                                  if(oglDisplay.shminfoShape.shmid != -1)
2066                                  {
2067                                     oglDisplay.shminfoShape.shmaddr = shmat(oglDisplay.shminfoShape.shmid, 0, 0);
2068                                     if(oglDisplay.shminfoShape.shmaddr != (void *)-1)
2069                                     {
2070                                        oglDisplay.shminfoShape.readOnly = False;
2071                                        if(XShmAttach(xGlobalDisplay, &oglDisplay.shminfoShape))
2072                                        {
2073                                           oglDisplay.shapePixmap = XShmCreatePixmap(xGlobalDisplay, (X11Window)display.window, oglDisplay.shminfoShape.shmaddr,
2074                                              &oglDisplay.shminfoShape, width, height, 1);
2075                                           //oglDisplay.shapePixmap = XCreatePixmap(xGlobalDisplay, (X11Window)display.window, width, height, 1);
2076
2077                                           {
2078                                              XRenderPictureAttributes attributes = { 0 };
2079                                              XRenderPictFormat * format = XRenderFindStandardFormat(xGlobalDisplay, /*PictStandardRGB24*/ PictStandardARGB32);
2080                                              #if !defined(__APPLE__) && !defined(__OLDX__)
2081                                              attributes.repeat = RepeatNormal;
2082                                              #else
2083                                              attributes.repeat = 1;
2084                                              #endif
2085                                              oglDisplay.pixmapPicture = XRenderCreatePicture(xGlobalDisplay, oglDisplay.pixmap, format, CPRepeat, &attributes);
2086                                              oglDisplay.windowPicture = XRenderCreatePicture(xGlobalDisplay, (X11Window)display.window, format, 0, &attributes);
2087                                              oglDisplay.shapePicture = XRenderCreatePicture(xGlobalDisplay, oglDisplay.shapePixmap,
2088                                                 XRenderFindStandardFormat(xGlobalDisplay, PictStandardA1), 0, &attributes);
2089                                           }
2090
2091                                           oglDisplay.picture = oglDisplay.shminfo.shmaddr;
2092                                           oglDisplay.stride = oglDisplay.image->bytes_per_line / 4;
2093
2094                                           result = true;
2095                                        }
2096                                     }
2097                                  }
2098                               }
2099                            }
2100                         }
2101                      }
2102                   }
2103                }
2104             }
2105             XFree(config);
2106          }
2107      #endif
2108 #endif
2109          CreateDisplay(display);
2110 #if defined(__WIN32__)
2111          wglMakeCurrent(oglDisplay.hdc, oglDisplay.glrc);
2112 #elif defined(__unix__) || defined(__APPLE__)
2113       #if defined(__ANDROID__)
2114          width = eglWidth;
2115          height = eglHeight;
2116       #else
2117          glXMakeCurrent(xGlobalDisplay, (GLXDrawable)display.window, oglDisplay.glContext);
2118       #endif
2119 #endif
2120       }
2121       else
2122 #endif
2123          result = true;
2124       if(!result && display.alphaBlend)
2125       {
2126          printf("Alpha blending windows not supported on this display\n");
2127       }
2128       if(!result)
2129          return false;
2130
2131       result = false;
2132
2133       glViewport(0,0,width,height);
2134       glLoadIdentity();
2135       glOrtho(0,width,height,0,0.0,1.0);
2136       displayWidth = display.width = width;
2137       displayHeight = display.height = height;
2138
2139       if(!oglDisplay.flippingBuffer || oglDisplay.flipBufW < width || oglDisplay.flipBufH < height)
2140       {
2141          oglDisplay.flipBufW = width;
2142          oglDisplay.flipBufH = height;
2143 #ifdef _GLES
2144          result = true;
2145 #else
2146          oglDisplay.flippingBuffer = renew oglDisplay.flippingBuffer ColorAlpha [width * height];
2147 #endif
2148       }
2149       if(oglDisplay.flippingBuffer || !width || !height)
2150          result = true;
2151
2152       return result;
2153    }
2154
2155    void DisplayPosition(Display display, int x, int y)
2156    {
2157       OGLDisplay oglDisplay = display.driverData;
2158
2159       oglDisplay.x = x;
2160       oglDisplay.y = y;
2161    }
2162
2163    void SetPalette(Display display, ColorAlpha * palette, bool colorMatch)
2164    {
2165    }
2166
2167    void RestorePalette(Display display)
2168    {
2169    }
2170
2171    void StartUpdate(Display display)
2172    {
2173    }
2174
2175    void EndUpdate(Display display)
2176    {
2177    }
2178
2179    void Scroll(Display display, Box scroll, int x, int y, Extent dirty)
2180    {
2181    }
2182
2183    void Update(Display display, Box updateBox)
2184    {
2185 #if defined(__WIN32__) || defined(USEPBUFFER)
2186       OGLDisplay oglDisplay = display.driverData;
2187 #endif
2188       //Logf("DisplayScreen\n");
2189
2190       glFlush();
2191       glFinish();
2192 #if defined(__WIN32__) || defined(USEPBUFFER)
2193       if(display.alphaBlend)
2194       {
2195          glPixelStorei(GL_PACK_ALIGNMENT, 4);
2196          glPixelStorei(GL_PACK_ROW_LENGTH, oglDisplay.stride);
2197          glPixelStorei(GL_PACK_SKIP_ROWS, 0);
2198          glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
2199          glReadPixels(0,0,display.width,display.height,GL_BGRA_EXT,GL_UNSIGNED_BYTE, oglDisplay.picture);
2200
2201          {
2202 #if defined(__WIN32__)
2203             HDC hdc = GetDC(0);
2204             POINT point = { oglDisplay.x, oglDisplay.y};
2205             POINT srcPoint = { 0, 0 };
2206             BLENDFUNCTION blend = { 0 };
2207             SIZE size;
2208             size.cx = display.width;
2209             size.cy = display.height;
2210             blend.BlendOp = AC_SRC_OVER;
2211             blend.BlendFlags = 0;
2212             blend.SourceConstantAlpha = 255;
2213             blend.AlphaFormat = AC_SRC_ALPHA;
2214
2215             /*
2216             // Process partial images.  Mapping the buffer waits for
2217             // outstanding DMA transfers into the buffer to finish.
2218             glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, oglDisplay.imageBuffers[0]);
2219             oglDisplay.pboMemory1 = (byte *)glMapBufferARB(GL_PIXEL_PACK_BUFFER_ARB, GL_READ_ONLY);
2220
2221             // glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, oglDisplay.imageBuffers[1]);
2222             // oglDisplay.pboMemory2 = (byte *)glMapBufferARB(GL_PIXEL_PACK_BUFFER_ARB,GL_READ_ONLY);
2223
2224
2225             memcpy(oglDisplay.picture, oglDisplay.pboMemory1, display.width * display.height * 4);
2226             //memcpy(oglDisplay.picture + display.width * display.height * 4 / 2, oglDisplay.pboMemory2, display.width * display.height * 4/ 2);
2227             */
2228
2229             UpdateLayeredWindow(display.window, hdc, &point, &size, oglDisplay.memDC, &srcPoint, 0, &blend, ULW_ALPHA);
2230             /*
2231
2232             // Unmap the image buffers
2233             glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, oglDisplay.imageBuffers[0]);
2234             glUnmapBufferARB(GL_PIXEL_PACK_BUFFER_ARB);
2235
2236             // glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, oglDisplay.imageBuffers[1]);
2237             // glUnmapBufferARB(GL_PIXEL_PACK_BUFFER_ARB);
2238
2239             // Bind two different buffer objects and start the glReadPixels
2240             // asynchronously. Each call will return directly after
2241             // starting the DMA transfer.
2242             glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, oglDisplay.imageBuffers[0]);
2243             glReadPixels(0, 0, display.width, display.height, GL_BGRA, GL_UNSIGNED_BYTE, 0);
2244
2245             // glBindBufferARB(GL_PIXEL_PACK_BUFFER_ARB, oglDisplay.imageBuffers[1]);
2246             // glReadPixels(0, display.height/2, display.width, display.height/2, GL_BGRA, GL_UNSIGNED_BYTE, 0);
2247             */
2248
2249             ReleaseDC(0, hdc);
2250 #elif defined(__unix__) || defined(__APPLE__)
2251       #if defined(__ANDROID__)
2252       #else
2253             XTransform transform =
2254             {
2255                {
2256                   { (int)(1.0f * (1<<16)), (int)(0.0f * (1<<16)),  (int)(0 * (1 << 16)) },
2257                   { (int)(0.0f),           (int)(-1.0f * (1<<16)), (int)(0 * (1<<16)) },
2258                   { (int)(0.0f * (1<<16)), (int)(0.0f * (1<<16)),  (int)(1.0f * (1<<16)) }
2259                }
2260             };
2261             XRenderSetPictureTransform(xGlobalDisplay, oglDisplay.pixmapPicture, &transform);
2262             XRenderComposite(xGlobalDisplay, PictOpSrc, oglDisplay.pixmapPicture, None, oglDisplay.shapePicture, 0, 0, 0, 0, 0, 0, display.width, display.height);
2263             XRenderComposite(xGlobalDisplay, PictOpSrc, oglDisplay.pixmapPicture, None, oglDisplay.windowPicture, 0, 0, 0, 0, 0, 0, display.width, display.height);
2264             #if !defined(__APPLE__) && !defined(__OLDX__)
2265             XShapeCombineMask(xGlobalDisplay, (X11Window)display.window, ShapeInput, 0, 0, oglDisplay.shapePixmap, ShapeSet);
2266             #else
2267             XShapeCombineMask(xGlobalDisplay, display.window, 2, 0, 0, oglDisplay.shapePixmap, ShapeSet);
2268             #endif
2269             XFlush(xGlobalDisplay);
2270      #endif
2271 #endif
2272          }
2273       }
2274       else
2275 #endif
2276       {
2277 #if defined(__WIN32__)
2278          //wglSwapLayerBuffers(oglDisplay.hdc,WGL_SWAP_MAIN_PLANE);
2279          SwapBuffers(oglDisplay.hdc);
2280 #elif defined(__unix__) || defined(__APPLE__)
2281       #if defined(__ANDROID__)
2282          eglSwapBuffers(eglDisplay, eglSurface);
2283       #else
2284          glXSwapBuffers(xGlobalDisplay, (GLXDrawable)display.window);
2285       #endif
2286 #endif
2287       }
2288       //Logf("Out of DisplayScreen\n");
2289    }
2290
2291    void FreeBitmap(DisplaySystem displaySystem, Bitmap bitmap)
2292    {
2293       if(bitmap.driverData)
2294       {
2295          GLuint tex = (GLuint)(uintptr)bitmap.driverData;
2296          glDeleteTextures(1, &tex);
2297          bitmap.driverData = 0;
2298       }
2299       bitmap.driver = ((subclass(DisplayDriver))class(LFBDisplayDriver));
2300    }
2301
2302    bool AllocateBitmap(DisplaySystem displaySystem, Bitmap bitmap, int width, int height, int stride, PixelFormat format, bool allocatePalette)
2303    {
2304       OGLSystem oglSystem = displaySystem.driverData;
2305       bool result = false;
2306       Bitmap mipMap { };
2307       GLuint glBitmap = 0;
2308
2309       uint w = width, h = height;
2310       if(oglSystem.pow2textures)
2311       {
2312          w = pow2i(w);
2313          h = pow2i(h);
2314       }
2315       w = Min(w, oglSystem.maxTextureSize);
2316       h = Min(h, oglSystem.maxTextureSize);
2317
2318       glGenTextures(1, &glBitmap);
2319       glBindTexture(GL_TEXTURE_2D, glBitmap);
2320
2321       glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
2322
2323       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
2324       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
2325
2326       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
2327       glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
2328
2329       glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
2330
2331       mipMap.Allocate(null, w, h, w, pixelFormatRGBA, false);
2332
2333       // glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, mipMap.picture);
2334       glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, mipMap.picture);
2335
2336       delete mipMap;
2337
2338       bitmap.driverData = (void *)(uintptr)glBitmap;
2339       bitmap.driver = displaySystem.driver;
2340       bitmap.width = w;
2341       bitmap.height = h;
2342
2343       result = true;
2344       return result;
2345    }
2346
2347    bool MakeDDBitmap(DisplaySystem displaySystem, Bitmap bitmap, bool mipMaps)
2348    {
2349       bool result = false;
2350       OGLSystem oglSystem = displaySystem.driverData;
2351
2352       // Pre process the bitmap... First make it 32 bit
2353       if(/*bitmap.pixelFormat == pixelFormatRGBA || */bitmap.Convert(null, pixelFormat888, null))
2354       {
2355          int c, level;
2356          uint w = bitmap.width, h = bitmap.height;
2357          GLuint glBitmap = 0;
2358          if(oglSystem.pow2textures)
2359          {
2360             w = pow2i(w);
2361             h = pow2i(h);
2362          }
2363          w = Min(w, oglSystem.maxTextureSize);
2364          h = Min(h, oglSystem.maxTextureSize);
2365
2366          if(mipMaps)
2367          {
2368             while(w * 2 < h) w *= 2;
2369             while(h * 2 < w) h *= 2;
2370          }
2371
2372          // Switch ARGB to RGBA
2373          //if(bitmap.format != pixelFormatRGBA)
2374          {
2375             for(c=0; c<bitmap.size; c++)
2376             {
2377                // ((ColorRGBA *)bitmap.picture)[c] = ((ColorAlpha *)bitmap.picture)[c];
2378                // TODO:
2379                ColorAlpha color = ((ColorAlpha *)bitmap.picture)[c];
2380                ((ColorRGBA *)bitmap.picture)[c] = ColorRGBA { color.color.r, color.color.g, color.color.b, color.a };
2381             }
2382          }
2383          bitmap.pixelFormat = pixelFormat888;
2384
2385          glGetError();
2386          glGenTextures(1, &glBitmap);
2387          if(glBitmap == 0)
2388          {
2389             //int error = glGetError();
2390             return false;
2391          }
2392
2393          glBindTexture(GL_TEXTURE_2D, glBitmap);
2394          glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
2395
2396          glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
2397          glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, mipMaps ? GL_LINEAR_MIPMAP_LINEAR : GL_LINEAR);
2398          //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
2399
2400          //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
2401          //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
2402
2403          glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
2404          glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
2405
2406          glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
2407
2408          result = true;
2409
2410          for(level = 0; result && (w > 1 || h > 1); level++, w >>= 1, h >>= 1)
2411          {
2412             Bitmap mipMap;
2413             if(bitmap.width != w || bitmap.height != h)
2414             {
2415                mipMap = Bitmap { };
2416                if(mipMap.Allocate(null, w, h, w, bitmap.pixelFormat, false))
2417                {
2418                   Surface mipSurface = mipMap.GetSurface(0,0,null);
2419                   mipSurface.Filter(bitmap, 0,0,0,0, w, h, bitmap.width, bitmap.height);
2420                   delete mipSurface;
2421                }
2422                else
2423                {
2424                   result = false;
2425                   delete mipMap;
2426                }
2427             }
2428             else
2429                mipMap = bitmap;
2430
2431             if(result)
2432             {
2433                int error;
2434                //int width = 0;
2435                glGetError();
2436                // glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA8, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, mipMap.picture);
2437                glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, w, h, 0, GL_RGBA, GL_UNSIGNED_BYTE, mipMap.picture);
2438                //printf("Calling glTexImage2D\n");
2439                //glGetTexLevelParameteriv(GL_TEXTURE_2D, level, GL_TEXTURE_WIDTH, &width);
2440                //printf("width = %d (Should be %d, %d)\n", width, w, h);
2441                if((error = glGetError()))
2442                {
2443                   //Logf("OpenGL Bitmap MakeDD error: %d...\n", error);
2444                   //printf("OpenGL Bitmap MakeDD error: %d...\n", error);
2445                   result = false;
2446                }
2447             }
2448             if(mipMap != bitmap)
2449                delete mipMap;
2450             if(!mipMaps) break;
2451          }
2452
2453          if(!bitmap.keepData)
2454             bitmap.driver.FreeBitmap(bitmap.displaySystem, bitmap);
2455          bitmap.driverData = (void *)(uintptr)glBitmap;
2456          bitmap.driver = displaySystem.driver;
2457
2458          if(!result)
2459             FreeBitmap(displaySystem, bitmap);
2460          else if(oglSystem.loadingFont)
2461          {
2462             glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
2463             glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
2464             oglSystem.loadingFont = false;
2465          }
2466       }
2467       return result;
2468    }
2469
2470    void ReleaseSurface(Display display, Surface surface)
2471    {
2472       glDisable(GL_SCISSOR_TEST);
2473       delete surface.driverData;
2474       surface.driverData = null;
2475    }
2476
2477    bool GetBitmapSurface(DisplaySystem displaySystem, Surface surface, Bitmap bitmap, int x, int y, Box clip)
2478    {
2479       return false;
2480    }
2481
2482    bool GetSurface(Display display, Surface surface, int x,int y, Box clip)
2483    {
2484       bool result = false;
2485       OGLSurface oglSurface = surface.driverData = OGLSurface { };
2486
2487       //Logf("GetSurface\n");
2488
2489       if(oglSurface)
2490       {
2491          if(displayWidth != display.width || displayHeight != display.height)
2492          {
2493             displayWidth = display.width;
2494             displayHeight = display.height;
2495
2496             glViewport(0,0,display.width,display.height);
2497             glLoadIdentity();
2498             glOrtho(0,display.width,display.height,0,0.0,1.0);
2499          }
2500
2501          surface.offset.x = x;
2502          surface.offset.y = y;
2503          surface.unclippedBox = surface.box = clip;
2504          oglSurface.bitmapMult[0] = 1;
2505          oglSurface.bitmapMult[1] = 1;
2506          oglSurface.bitmapMult[2] = 1;
2507          oglSurface.bitmapMult[3] = 1;
2508
2509          glEnable(GL_SCISSOR_TEST);
2510          glScissor(
2511             x+clip.left,
2512             (display.height) -(y+clip.bottom)-1,
2513             clip.right-clip.left+1,
2514             clip.bottom-clip.top+1);
2515          result = true;
2516       }
2517       return result;
2518    }
2519
2520    void Clip(Display display, Surface surface, Box clip)
2521    {
2522       Box box;
2523
2524       //Logf("Clip\n");
2525
2526       if(clip != null)
2527       {
2528          box = clip;
2529          box.Clip(surface.unclippedBox);
2530          surface.box = box;
2531       }
2532       else
2533          box = surface.box = surface.unclippedBox;
2534       box.left += surface.offset.x;
2535       box.top  += surface.offset.y;
2536       box.right+= surface.offset.x;
2537       box.bottom += surface.offset.y;
2538
2539       glScissor(
2540          box.left,display.height - box.bottom - 1,
2541          box.right-box.left+1, box.bottom-box.top+1);
2542    }
2543
2544    bool GrabScreen(Display display, Bitmap bitmap, int x, int y, unsigned int w, unsigned int h)
2545    {
2546       bool result = false;
2547       OGLDisplay oglDisplay = display.driverData;
2548       ColorAlpha * flippingBuffer = oglDisplay.flippingBuffer;
2549
2550       if(oglDisplay.flippingBuffer)
2551       {
2552          if(bitmap.pixelFormat != pixelFormat888 || bitmap.width < w || bitmap.height < h)
2553          {
2554             bitmap.Free();
2555             bitmap.Allocate(null, w,h,w, pixelFormat888, false);
2556          }
2557          if(bitmap)
2558          {
2559             uint row;
2560
2561             glPixelStorei(GL_PACK_ALIGNMENT, 4);
2562             glPixelStorei(GL_PACK_ROW_LENGTH, bitmap.stride);
2563             glPixelStorei(GL_PACK_SKIP_ROWS, 0);
2564             glPixelStorei(GL_PACK_SKIP_PIXELS, 0);
2565             glReadPixels(x,display.height-h-y,w,h,GL_BGRA_EXT,GL_UNSIGNED_BYTE, flippingBuffer);
2566
2567             // Need a flip...
2568             for(row = 0; row<h; row++)
2569                CopyBytesBy4(((ColorAlpha *)bitmap.picture) + row * w, ((ColorAlpha *)flippingBuffer) + (h-row-1) * w, w);
2570             result = true;
2571          }
2572       }
2573       return result;
2574    }
2575
2576    void SetForeground(Display display, Surface surface, ColorAlpha color)
2577    {
2578       OGLSurface oglSurface = surface.driverData;
2579
2580       //Logf("SetForeground\n");
2581
2582       oglSurface.foreground[0] = color.color.r/255.0f;
2583       oglSurface.foreground[1] = color.color.g/255.0f;
2584       oglSurface.foreground[2] = color.color.b/255.0f;
2585       //oglSurface.foreground[3] = 1.0f;
2586       oglSurface.foreground[3] = color.a/255.0f;
2587
2588       //if(!oglSurface.foreground[3])printf("bug");
2589    }
2590
2591    void SetBackground(Display display, Surface surface, ColorAlpha color)
2592    {
2593       OGLSurface oglSurface = surface.driverData;
2594
2595       //Logf("SetBackground\n");
2596
2597       oglSurface.background[0] = color.color.r/255.0f;
2598       oglSurface.background[1] = color.color.g/255.0f;
2599       oglSurface.background[2] = color.color.b/255.0f;
2600       //oglSurface.background[3] = 1.0;
2601       oglSurface.background[3] = color.a/255.0f;
2602    }
2603
2604    void SetBlitTint(Display display, Surface surface, ColorAlpha color)
2605    {
2606       OGLSurface oglSurface = surface.driverData;
2607
2608       oglSurface.bitmapMult[0] = color.color.r/255.0f;
2609       oglSurface.bitmapMult[1] = color.color.g/255.0f;
2610       oglSurface.bitmapMult[2] = color.color.b/255.0f;
2611       oglSurface.bitmapMult[3] = color.a/255.0f;
2612    }
2613
2614    ColorAlpha GetPixel(Display display, Surface surface,int x,int y)
2615    {
2616       return 0;
2617    }
2618
2619    void PutPixel(Display display, Surface surface,int x,int y)
2620    {
2621       OGLSurface oglSurface = surface.driverData;
2622
2623       //Logf("PutPixel\n");
2624
2625       glColor4fv(oglSurface.foreground);
2626       glBegin(GL_POINTS);
2627       // glVertex2i(x+surface.offset.x, y+surface.offset.y);
2628       glVertex2f(x+surface.offset.x + 0.5f, y+surface.offset.y + 0.5f);
2629
2630       glEnd();
2631    }
2632
2633    void DrawLine(Display display, Surface surface, int _x1, int _y1, int _x2, int _y2)
2634    {
2635       OGLSurface oglSurface = surface.driverData;
2636       float x1 = _x1, x2 = _x2, y1 = _y1, y2 = _y2;
2637       if(_x1 == _x2)
2638       {
2639          if(_y2 >= _y1)
2640             y2 += 1;
2641          else
2642             y1 += 1;
2643       }
2644       else if(_y1 == _y2)
2645       {
2646          if(_x2 >= _x1)
2647             x2 += 1;
2648          else
2649             x1 += 1;
2650       }
2651       x1 += surface.offset.x;
2652       y1 += surface.offset.y;
2653       x2 += surface.offset.x;
2654       y2 += surface.offset.y;
2655
2656       //Logf("Line\n");
2657
2658       glColor4fv(oglSurface.foreground);
2659       glBegin(GL_LINES);
2660 #ifdef __ANDROID__
2661       if(stippleEnabled)
2662       {
2663          glTexCoord2f(0.5f, 0);
2664          glVertex2f(x1 + 0.5f, y1 + 0.5f);
2665          glTexCoord2f(Max(x2-x1, y2-y1) + 0.5f, 0);
2666          glVertex2f(x2 + 0.5f, y2 + 0.5f);
2667       }
2668       else
2669 #endif
2670       {
2671          /*
2672          glVertex2i(x1, y1);
2673          glVertex2i(x2, y2);
2674          */
2675          glVertex2f(x1 + 0.5f, y1 + 0.5f);
2676          glVertex2f(x2 + 0.5f, y2 + 0.5f);
2677       }
2678
2679       glEnd();
2680    }
2681
2682    void Rectangle(Display display, Surface surface,int x1,int y1,int x2,int y2)
2683    {
2684       OGLSurface oglSurface = surface.driverData;
2685       x1 += surface.offset.x;
2686       y1 += surface.offset.y;
2687       x2 += surface.offset.x;
2688       y2 += surface.offset.y;
2689
2690       //Logf("Rectangle\n");
2691
2692       glColor4fv(oglSurface.foreground);
2693 #ifdef __ANDROID__
2694       if(stippleEnabled)
2695       {
2696          glBegin(GL_LINES);
2697
2698          glTexCoord2f(0.5f, 0);
2699          glVertex2f(x1 + 0.5f, y1 + 0.5f);
2700          glTexCoord2f(y2-y1 + 0.5f, 0);
2701          glVertex2f(x1 + 0.5f, y2 + 0.5f);
2702
2703          glTexCoord2f(0.5f, 0);
2704          glVertex2f(x1 + 0.5f, y2 + 0.5f);
2705          glTexCoord2f(x2 - x1 + 0.5f, 0);
2706          glVertex2f(x2 + 0.5f, y2 + 0.5f);
2707
2708          glTexCoord2f(0.5f, 0);
2709          glVertex2f(x2 + 0.5f, y2 + 0.5f);
2710          glTexCoord2f(y1 - y2 + 0.5f, 0);
2711          glVertex2f(x2 + 0.5f, y1 + 0.5f);
2712
2713          glTexCoord2f(0.5f, 0);
2714          glVertex2f(x2 + 0.5f, y1 + 0.5f);
2715          glTexCoord2f(x1 - x2 + 0.5f, 0);
2716          glVertex2f(x1 + 0.5f, y1 + 0.5f);
2717       }
2718       else
2719 #endif
2720       {
2721          glBegin(GL_LINE_LOOP);
2722          /*
2723          glVertex2i(x1, y1);
2724          glVertex2i(x1, y2);
2725          glVertex2i(x2, y2);
2726          glVertex2i(x2, y1);
2727          */
2728          glVertex2f(x1 + 0.5f, y1 + 0.5f);
2729          glVertex2f(x1 + 0.5f, y2 + 0.5f);
2730          glVertex2f(x2 + 0.5f, y2 + 0.5f);
2731          glVertex2f(x2 + 0.5f, y1 + 0.5f);
2732       }
2733       glEnd();
2734    }
2735
2736    void Area(Display display, Surface surface,int x1,int y1,int x2,int y2)
2737    {
2738       OGLSurface oglSurface = surface.driverData;
2739       //Logf("Area\n");
2740
2741       glColor4fv(oglSurface.background);
2742       glRecti(x1+surface.offset.x, y1+surface.offset.y,
2743               x2+surface.offset.x + 1, y2+surface.offset.y + 1);
2744
2745       /*
2746       glRectf(x1+surface.offset.x, y1+surface.offset.y,
2747               x2+surface.offset.x + 1, y2+surface.offset.y + 1);
2748       */
2749    }
2750
2751    void Clear(Display display, Surface surface, ClearType type)
2752    {
2753       OGLDisplay oglDisplay = display.driverData;
2754       OGLSurface oglSurface = surface.driverData;
2755
2756       //Logf("Clear\n");
2757       if(type != depthBuffer)
2758          glClearColor(oglSurface.background[0], oglSurface.background[1], oglSurface.background[2], oglSurface.background[3]);
2759       if(type != colorBuffer && !oglDisplay.depthWrite)
2760       {
2761          glDepthMask((byte)bool::true);
2762       }
2763       glClear(((type != depthBuffer) ? GL_COLOR_BUFFER_BIT : 0) |
2764               ((type != colorBuffer) ? GL_DEPTH_BUFFER_BIT : 0));
2765       if(type != colorBuffer && !oglDisplay.depthWrite)
2766       {
2767          glDepthMask((byte)bool::false);
2768       }
2769    }
2770
2771    bool ConvertBitmap(DisplaySystem displaySystem, Bitmap bitmap, PixelFormat format, ColorAlpha * palette)
2772    {
2773       return true;
2774    }
2775
2776    void Blit(Display display, Surface surface, Bitmap bitmap, int dx, int dy, int sx, int sy, int w, int h)
2777    {
2778       OGLSurface oglSurface = surface.driverData;
2779
2780 #if !defined(__OLDX__)
2781          // WHY DO WE HAVE GL_ONE HERE ?
2782          /*if(glBlendFuncSeparate && !oglSurface.writingText)
2783             glBlendFuncSeparate(GL_ONE, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);*/
2784 #endif
2785
2786       if(!oglSurface.writingText)
2787       {
2788          // glTranslatef(-0.375f, -0.375f, 0.0f);
2789          glEnable(GL_TEXTURE_2D);
2790          glColor4fv(oglSurface.bitmapMult);
2791       }
2792       else if(oglSurface.xOffset)
2793          glTranslated(oglSurface.xOffset / 64.0/*-0.375*/, 0.0, 0.0);
2794
2795       glBindTexture(GL_TEXTURE_2D, (GLuint)(uintptr)bitmap.driverData);
2796       glBegin(GL_QUADS);
2797
2798       if(h < 0)
2799       {
2800          glTexCoord2f((float)sx/ bitmap.width, (float)(sy-h)/ bitmap.height);
2801          glVertex2i(dx+surface.offset.x, dy+surface.offset.y);
2802          glTexCoord2f((float)(sx+w) / bitmap.width, (float)(sy-h)/ bitmap.height);
2803          glVertex2i(dx+w+surface.offset.x, dy+surface.offset.y);
2804          glTexCoord2f((float)(sx+w)/ bitmap.width, (float)sy/ bitmap.height);
2805          glVertex2i(dx+w+surface.offset.x, dy-h+surface.offset.y);
2806          glTexCoord2f((float)sx / bitmap.width, (float)sy/ bitmap.height);
2807          glVertex2i(dx+surface.offset.x, dy-h+surface.offset.y);
2808       }
2809       else
2810       {
2811          /*
2812          glTexCoord2f((float)sx / bitmap.width, (float)sy/ bitmap.height);
2813          glVertex2i(dx+surface.offset.x, dy+surface.offset.y);
2814          glTexCoord2f((float)(sx+w)/ bitmap.width, (float)sy/ bitmap.height);
2815          glVertex2i(dx+w+surface.offset.x, dy+surface.offset.y);
2816          glTexCoord2f((float)(sx+w) / bitmap.width, (float)(sy+h)/ bitmap.height);
2817          glVertex2i(dx+w+surface.offset.x, dy+h+surface.offset.y);
2818          glTexCoord2f((float)sx/ bitmap.width, (float)(sy+h)/ bitmap.height);
2819          glVertex2i(dx+surface.offset.x, dy+h+surface.offset.y);
2820          */
2821
2822          glTexCoord2f((float)sx / bitmap.width, (float)sy/ bitmap.height);
2823          glVertex2f((float)dx+surface.offset.x, (float)dy+surface.offset.y);
2824          glTexCoord2f((float)(sx+w)/ bitmap.width, (float)sy/ bitmap.height);
2825          glVertex2f((float)dx+w+surface.offset.x, (float)dy+surface.offset.y);
2826          glTexCoord2f((float)(sx+w) / bitmap.width, (float)(sy+h)/ bitmap.height);
2827          glVertex2f((float)dx+w+surface.offset.x, (float)dy+h+surface.offset.y);
2828          glTexCoord2f((float)sx/ bitmap.width, (float)(sy+h)/ bitmap.height);
2829          glVertex2f((float)dx+surface.offset.x, (float)dy+h+surface.offset.y);
2830       }
2831       glEnd();
2832
2833       if(!oglSurface.writingText)
2834       {
2835          glDisable(GL_TEXTURE_2D);
2836
2837          //glTranslate(0.375, 0.375, 0.0);
2838       }
2839       else if(oglSurface.xOffset)
2840          glTranslated(-oglSurface.xOffset / 64.0/*+0.375*/, 0.0, 0.0);
2841
2842 #if !defined(__OLDX__)
2843          /*if(glBlendFuncSeparate && !oglSurface.writingText)
2844             glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);*/
2845 #endif
2846    }
2847
2848    void Stretch(Display display, Surface surface, Bitmap bitmap, int dx, int dy, int sx, int sy, int w, int h, int sw, int sh)
2849    {
2850       OGLSurface oglSurface = surface.driverData;
2851
2852       //glTranslate(-0.375, -0.375, 0.0);
2853
2854       //Logf("Stretch\n");
2855
2856 #if !defined(__OLDX__)
2857       /*if(glBlendFuncSeparate)
2858          glBlendFuncSeparate(GL_ONE, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);*/
2859 #endif
2860
2861       glEnable(GL_TEXTURE_2D);
2862       glBindTexture(GL_TEXTURE_2D, (GLuint)(uintptr)bitmap.driverData);
2863
2864       glColor4fv(oglSurface.bitmapMult);
2865
2866       glBegin(GL_QUADS);
2867
2868       if(h < 0)
2869       {
2870          glTexCoord2f((float)(sx)/ bitmap.width, (float)(sy+sh)/ bitmap.height);
2871          glVertex2i(dx+surface.offset.x, dy+surface.offset.y);
2872
2873          glTexCoord2f((float)(sx+sw) / bitmap.width, (float)(sy+sh)/ bitmap.height);
2874          glVertex2i(dx+w+surface.offset.x, dy+surface.offset.y);
2875
2876          glTexCoord2f((float)(sx+sw)/ bitmap.width, (float)(sy)/ bitmap.height);
2877          glVertex2i(dx+w+surface.offset.x, dy-h+surface.offset.y);
2878
2879          glTexCoord2f((float)(sx) / bitmap.width, (float)(sy)/ bitmap.height);
2880          glVertex2i(dx+surface.offset.x, dy-h+surface.offset.y);
2881       }
2882       else
2883       {
2884          glTexCoord2f((float)(sx) / bitmap.width, (float)(sy)/ bitmap.height);
2885          glVertex2i(dx+surface.offset.x, dy+surface.offset.y);
2886
2887          glTexCoord2f((float)(sx+sw)/ bitmap.width, (float)(sy)/ bitmap.height);
2888          glVertex2i(dx+w+surface.offset.x, dy+surface.offset.y);
2889
2890          glTexCoord2f((float)(sx+sw) / bitmap.width, (float)(sy+sh)/ bitmap.height);
2891          glVertex2i(dx+w+surface.offset.x, dy+h+surface.offset.y);
2892
2893          glTexCoord2f((float)(sx)/ bitmap.width, (float)(sy+sh)/ bitmap.height);
2894          glVertex2i(dx+surface.offset.x, dy+h+surface.offset.y);
2895       }
2896
2897       glEnd();
2898
2899       glDisable(GL_TEXTURE_2D);
2900
2901       //glTranslate(0.375, 0.375, 0.0);
2902 #if !defined(__OLDX__)
2903       /*if(glBlendFuncSeparate)
2904          glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);*/
2905 #endif
2906
2907    }
2908
2909    void Filter(Display display, Surface surface, Bitmap bitmap, int dx, int dy, int sx, int sy, int w, int h, int sw, int sh)
2910    {
2911       Stretch(display, surface, bitmap, dx, dy, sx, sy, w, h, sw, sh);
2912    }
2913
2914    void StretchDI(Display display, Surface surface, Bitmap bitmap, int dx, int dy, int sx, int sy, int w, int h, int sw, int sh)
2915    {
2916       float s2dw,s2dh,d2sw,d2sh;
2917       //bool flipX = false, flipY = false;
2918
2919       //Logf("StretchDI\n");
2920
2921       if(Sgn(w) != Sgn(sw))
2922       {
2923          w = Abs(w);
2924          sw = Abs(sw);
2925          //flipX = true;
2926       }
2927       if(Sgn(h) != Sgn(sh))
2928       {
2929          h = Abs(h);
2930          sh = Abs(sh);
2931          //flipY = true;
2932       }
2933
2934       s2dw=(float)w / sw;
2935       s2dh=(float)h / sh;
2936       d2sw=(float)sw / w;
2937       d2sh=(float)sh / h;
2938
2939       //Clip against the edges of the source
2940       if(sx<0)
2941       {
2942          dx+=(int)((0-sx) * s2dw);
2943          w-=(int)((0-sx) * s2dw);
2944          sw-=0-sx;
2945          sx=0;
2946       }
2947       if(sy<0)
2948       {
2949          dy+=(int)((0-sy) * s2dh);
2950          h-=(int)((0-sy) * s2dh);
2951
2952          sh-=0-sy;
2953          sy=0;
2954       }
2955       if(sx+sw>bitmap.width-1)
2956       {
2957          w-=(int)((sx+sw-(bitmap.width-1)-1)*s2dw);
2958          sw-=sx+sw-(bitmap.width-1)-1;
2959       }
2960       if(sy+sh>(bitmap.height-1))
2961       {
2962          h-=(int)((sy+sh-(bitmap.height-1)-1)*s2dh);
2963          sh-=sy+sh-(bitmap.height-1)-1;
2964       }
2965       //Clip against the edges of the surfaceination
2966       if(dx<surface.box.left)
2967       {
2968          //if(!flip)
2969          sx+=(int)((surface.box.left-dx)*d2sw);
2970          sw-=(int)((surface.box.left-dx)*d2sw);
2971          w-=surface.box.left-dx;
2972          dx=surface.box.left;
2973       }
2974       if(dy<surface.box.top)
2975       {
2976          sy+=(int)((surface.box.top-dy)*d2sh);
2977          sh-=(int)((surface.box.top-dy)*d2sh);
2978          h-=surface.box.top-dy;
2979          dy=surface.box.top;
2980       }
2981       if(dx+w>surface.box.right)
2982       {
2983          //if(flip) sx+=(int)((dx+w-surface.box.right-1)*d2sw);
2984          sw-=(int)((dx+w-surface.box.right-1)*d2sw);
2985          w-=dx+w-surface.box.right-1;
2986       }
2987       if(dy+h>surface.box.bottom)
2988       {
2989          sh-=(int)((dy+h-surface.box.bottom-1)*d2sh);
2990          h-=dy+h-surface.box.bottom-1;
2991       }
2992       if((w<=0)||(h<=0)||(sw<=0)||(sh<=0)) return;
2993
2994       dx += surface.offset.x;
2995       dy += surface.offset.y;
2996
2997       if(bitmap.pixelFormat == pixelFormat888 && !bitmap.paletteShades)
2998       {
2999          glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
3000          glPixelStorei(GL_UNPACK_ROW_LENGTH, bitmap.stride);
3001          glPixelStorei(GL_UNPACK_SKIP_PIXELS, sx);
3002          glPixelStorei(GL_UNPACK_SKIP_ROWS, sy);
3003          glRasterPos2d(dx,dy);
3004          //glPixelZoom(flipX ? -s2dw : s2dw, flipY ? s2dh : -s2dh);
3005          glPixelZoom(s2dw, -s2dh);
3006          glDrawPixels(sw,sh,GL_BGRA_EXT,GL_UNSIGNED_BYTE, bitmap.picture);
3007          glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
3008          glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
3009          glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
3010          glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
3011       }
3012    }
3013
3014    void BlitDI(Display display, Surface surface, Bitmap bitmap, int dx, int dy, int sx, int sy, int w, int h)
3015    {
3016       //Logf("BlitDI\n");
3017
3018       //Clip against the edges of the source
3019       if(sx<0)
3020       {
3021          dx+=-sx;
3022          w-=-sx;
3023          sx=0;
3024       }
3025       if(sy<0)
3026       {
3027          dy+=0-sy;
3028          h-=0-sy;
3029          sy=0;
3030       }
3031       if(sx+w>bitmap.width-1)
3032          w-=sx+w-(bitmap.width-1)-1;
3033       if(sy+h>bitmap.height-1)
3034          h-=sy+h-(bitmap.height-1)-1;
3035       //Clip against the edges of the surfaceination
3036       if(dx<surface.box.left)
3037       {
3038          //if(!flip)
3039          sx+=surface.box.left-dx;
3040          w-=surface.box.left-dx;
3041          dx=surface.box.left;
3042       }
3043       if(dy<surface.box.top)
3044       {
3045          sy+=surface.box.top-dy;
3046          h-=surface.box.top-dy;
3047          dy=surface.box.top;
3048       }
3049       if(dx+w>surface.box.right)
3050       {
3051          //if(flip) sx+=dx+w-surface.box.right-1;
3052          w-=dx+w-surface.box.right-1;
3053       }
3054       if(dy+h>surface.box.bottom)
3055          h-=dy+h-surface.box.bottom-1;
3056       if((w<=0)||(h<=0))
3057          return;
3058
3059       dx += surface.offset.x;
3060       dy += surface.offset.y;
3061
3062       if(bitmap.pixelFormat == pixelFormat888 && !bitmap.paletteShades)
3063       {
3064          glPixelStorei(GL_UNPACK_ALIGNMENT, 4);
3065          glPixelStorei(GL_UNPACK_ROW_LENGTH, bitmap.stride);
3066          glPixelStorei(GL_UNPACK_SKIP_PIXELS, sx);
3067          glPixelStorei(GL_UNPACK_SKIP_ROWS, sy);
3068          glRasterPos2d(dx,dy);
3069          glPixelZoom(1,-1);
3070          glDrawPixels(w,h,GL_BGRA_EXT,GL_UNSIGNED_BYTE, bitmap.picture);
3071          glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
3072          glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
3073          glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
3074          glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
3075       }
3076    }
3077
3078    void FilterDI(Display display, Surface surface, Bitmap bitmap, int dx, int dy, int sx, int sy, int w, int h, int sw, int sh)
3079    {
3080       StretchDI(display, surface, bitmap, dx, dy, sx, sy, w, h, sw, sh);
3081    }
3082
3083    void UnloadFont(DisplaySystem displaySystem, Font font)
3084    {
3085       ((subclass(DisplayDriver))class(LFBDisplayDriver)).UnloadFont(displaySystem, font);
3086    }
3087
3088    Font LoadFont(DisplaySystem displaySystem, const char * faceName, float size, FontFlags flags)
3089    {
3090       Font font;
3091       OGLSystem oglSystem = displaySystem.driverData;
3092       oglSystem.loadingFont = true;
3093       font = ((subclass(DisplayDriver))class(LFBDisplayDriver)).LoadFont(displaySystem, faceName, size, flags);
3094       return font;
3095    }
3096
3097    void FontExtent(DisplaySystem displaySystem, Font font, const char * text, int len, int * width, int * height)
3098    {
3099       ((subclass(DisplayDriver))class(LFBDisplayDriver)).FontExtent(displaySystem, font, text, len, width, height);
3100    }
3101
3102    void WriteText(Display display, Surface surface, int x, int y, const char * text, int len)
3103    {
3104       OGLSurface oglSurface = surface.driverData;
3105       OGLSystem oglSystem = display.displaySystem.driverData;
3106       oglSystem.loadingFont = true;
3107
3108       //glTranslated(-0.375, -0.375, 0.0);
3109
3110       //Logf("Blit\n");
3111
3112       if(surface.textOpacity)
3113       {
3114          int w, h;
3115          FontExtent(display.displaySystem, surface.font, text, len, &w, &h);
3116          display.displaySystem.driver.Area(display, surface,x,y,x+w-1,y+h-1);
3117       }
3118
3119       oglSurface.writingText = true;
3120
3121       glEnable(GL_TEXTURE_2D);
3122       glColor4fv(oglSurface.foreground);
3123
3124       ((subclass(DisplayDriver))class(LFBDisplayDriver)).WriteText(display, surface, x, y, text, len);
3125       oglSurface.writingText = false;
3126       oglSystem.loadingFont = false;
3127
3128       glDisable(GL_TEXTURE_2D);
3129
3130       //glTranslated(0.375, 0.375, 0.0);
3131    }
3132
3133    void TextFont(Display display, Surface surface, Font font)
3134    {
3135       ((subclass(DisplayDriver))class(LFBDisplayDriver)).TextFont(display, surface, font);
3136    }
3137
3138    void TextOpacity(Display display, Surface surface, bool opaque)
3139    {
3140       OGLSurface oglSurface = surface.driverData;
3141       oglSurface.opaqueText = opaque;
3142    }
3143
3144    void TextExtent(Display display, Surface surface, const char * text, int len, int * width, int * height)
3145    {
3146       OGLSurface oglSurface = surface.driverData;
3147       OGLSystem oglSystem = display.displaySystem.driverData;
3148       oglSystem.loadingFont = true;
3149       FontExtent(display.displaySystem, oglSurface.font, text, len, width, height);
3150       oglSystem.loadingFont = false;
3151    }
3152
3153    void DrawingChar(Display display, Surface surface, char character)
3154    {
3155
3156    }
3157
3158    void LineStipple(Display display, Surface surface, uint32 stipple)
3159    {
3160       //Logf("Stipple\n");
3161
3162       if(stipple)
3163       {
3164 #if defined(__ANDROID__)
3165          stippleEnabled = true;
3166          glesLineStipple(1, (uint16)stipple);
3167 #else
3168          glLineStipple(1, (uint16)stipple);
3169          glEnable(GL_LINE_STIPPLE);
3170 #endif
3171       }
3172       else
3173       {
3174 #if defined(__ANDROID__)
3175          stippleEnabled = false;
3176          glMatrixMode(GL_TEXTURE);
3177          glLoadIdentity();
3178          glMatrixMode(GL_PROJECTION);
3179          glDisable(GL_TEXTURE_2D);
3180 #else
3181          glDisable(GL_LINE_STIPPLE);
3182 #endif
3183       }
3184    }
3185 #if !defined(ECERE_NO3D) && !defined(ECERE_VANILLA)
3186    void SetRenderState(Display display, RenderState state, uint value)
3187    {
3188       OGLDisplay oglDisplay = display.driverData;
3189       //Logf("RenderState\n");
3190
3191       switch(state)
3192       {
3193          case antiAlias:
3194             if(value)
3195                glEnable(GL_MULTISAMPLE_ARB);
3196             else
3197                glDisable(GL_MULTISAMPLE_ARB);
3198             break;
3199          case fillMode:
3200             glPolygonMode(GL_FRONT_AND_BACK, ((FillModeValue)value == solid) ? GL_FILL : GL_LINE);
3201             break;
3202          case depthTest:
3203             if(value) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST);
3204             break;
3205          case depthWrite:
3206             if(value) glDepthMask((byte)bool::true); else glDepthMask((byte)bool::false);
3207             oglDisplay.depthWrite = (bool)value;
3208             break;
3209          case fogColor:
3210          {
3211             float color[4] = { ((Color)value).r/255.0f, ((Color)value).g/255.0f, ((Color)value).b/255.0f, 1.0f };
3212             glFogfv(GL_FOG_COLOR, (float *)&color);
3213             break;
3214          }
3215          case fogDensity:
3216             glFogf(GL_FOG_DENSITY, (float)(RenderStateFloat { ui = value }.f * nearPlane));
3217             break;
3218          case blend:
3219             if(value) glEnable(GL_BLEND); else glDisable(GL_BLEND);
3220             break;
3221          case ambient:
3222          {
3223             float ambient[4] = { ((Color)value).r/255.0f, ((Color)value).g/255.0f, ((Color)value).b/255.0f, 1.0f };
3224             glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient);
3225             break;
3226          }
3227          case alphaWrite:
3228          {
3229             if(value) glColorMask(1,1,1,1); else glColorMask(1,1,1,0);
3230             break;
3231          }
3232          case vSync:
3233          {
3234 #if defined(__WIN32__)
3235             wglSwapIntervalEXT(value ? 1 : 0);
3236 #endif
3237             break;
3238          }
3239       }
3240    }
3241
3242    void SetLight(Display display, int id, Light light)
3243    {
3244       //Logf("SetLight\n");
3245
3246       if(light != null)
3247       {
3248          Object lightObject = light.lightObject;
3249          float position[4] = { 0, 0, 0, 0 };
3250          float color[4] = { 0, 0, 0, 1 };
3251
3252          glEnable(GL_LIGHT0 + id);
3253          /*
3254          glLightfv(GL_LIGHT0 + id, GL_DIFFUSE, (float *)&light.diffuse);
3255          glLightfv(GL_LIGHT0 + id, GL_AMBIENT, (float *)&light.ambient);
3256          glLightfv(GL_LIGHT0 + id, GL_SPECULAR,(float *)&light.specular);
3257          */
3258
3259          if(!light.multiplier) light.multiplier = 1.0f;
3260
3261          color[0] = light.diffuse.r * light.multiplier;
3262          color[1] = light.diffuse.g * light.multiplier;
3263          color[2] = light.diffuse.b * light.multiplier;
3264          glLightfv(GL_LIGHT0 + id, GL_DIFFUSE, color);
3265
3266          color[0] = light.ambient.r * light.multiplier;
3267          color[1] = light.ambient.g * light.multiplier;
3268          color[2] = light.ambient.b * light.multiplier;
3269          glLightfv(GL_LIGHT0 + id, GL_AMBIENT, color);
3270          color[0] = light.specular.r * light.multiplier;
3271          color[1] = light.specular.g * light.multiplier;
3272          color[2] = light.specular.b * light.multiplier;
3273          glLightfv(GL_LIGHT0 + id, GL_SPECULAR,color);
3274
3275          if(lightObject)
3276          {
3277             Vector3D positionVector;
3278             if(light.flags.spot)
3279             {
3280                if(lightObject.flags.root || !lightObject.parent)
3281                {
3282                   positionVector = lightObject.transform.position;
3283                   positionVector.Subtract(positionVector, display.display3D.camera.cPosition);
3284                }
3285                else
3286                {
3287                   positionVector.MultMatrix(lightObject.transform.position, lightObject.parent.matrix);
3288                   if(display.display3D.camera)
3289                      positionVector.Subtract(positionVector, display.display3D.camera.cPosition);
3290                }
3291                position[3] = 1;
3292             }
3293             else
3294             {
3295                if(!light.direction.x && !light.direction.y && !light.direction.z)
3296                {
3297                   Vector3Df vector { 0,0,-1 };
3298                   Matrix mat;
3299                   mat.RotationQuaternion(light.orientation);
3300                   positionVector.MultMatrixf(vector, mat);
3301                }
3302                else
3303                {
3304                   positionVector = light.direction;
3305                   position[3] = 1;
3306                }
3307             }
3308
3309             position[0] = (float)positionVector.x;
3310             position[1] = (float)positionVector.y;
3311             position[2] = (float)positionVector.z;
3312
3313             glLightfv(GL_LIGHT0 + id, GL_POSITION, position);
3314
3315             /*
3316             // Display Light Position
3317             glDisable(GL_LIGHTING);
3318             glDisable(GL_DEPTH_TEST);
3319             glColor3f(1,1,1);
3320             glPointSize(10);
3321             glBegin(GL_POINTS);
3322             glVertex3fv(position);
3323             glEnd();
3324             glEnable(GL_DEPTH_TEST);
3325             glEnable(GL_LIGHTING);
3326
3327
3328             // Display Target
3329             if(lightObject.flags.root || !lightObject.parent)
3330             {
3331                positionVector = light.target.transform.position;
3332                positionVector.Subtract(positionVector, display.camera.cPosition);
3333             }
3334             else
3335             {
3336                positionVector.MultMatrix(light.target.transform.position,
3337                   lightObject.light.target.parent.matrix);
3338                positionVector.Subtract(positionVector, display.camera.cPosition);
3339             }
3340
3341             position[0] = positionVector.x;
3342             position[1] = positionVector.y;
3343             position[2] = positionVector.z;
3344
3345             glDisable(GL_LIGHTING);
3346             glDisable(GL_DEPTH_TEST);
3347             glColor3f(1,1,0);
3348             glPointSize(10);
3349             glBegin(GL_POINTS);
3350             glVertex3fv(position);
3351             glEnd();
3352             glEnable(GL_DEPTH_TEST);
3353             glEnable(GL_LIGHTING);
3354             */
3355
3356             if(light.flags.attenuation)
3357             {
3358                glLightf(GL_LIGHT0 + id, GL_CONSTANT_ATTENUATION, light.Kc);
3359                glLightf(GL_LIGHT0 + id, GL_LINEAR_ATTENUATION, light.Kl);
3360                glLightf(GL_LIGHT0 + id, GL_QUADRATIC_ATTENUATION, light.Kq);
3361             }
3362
3363             if(light.flags.spot)
3364             {
3365                float exponent = 0;
3366                #define MAXLIGHT  0.9
3367                float direction[4] = { (float)light.direction.x, (float)light.direction.y, (float)light.direction.z, 1 };
3368                // Figure out exponent out of the hot spot
3369                exponent = (float)(log(MAXLIGHT) / log(cos((light.hotSpot / 2))));
3370
3371                glLightfv(GL_LIGHT0 + id, GL_SPOT_DIRECTION, direction);
3372                glLightf(GL_LIGHT0 + id, GL_SPOT_CUTOFF, (float)(light.fallOff / 2));
3373                glLightf(GL_LIGHT0 + id, GL_SPOT_EXPONENT, exponent);
3374             }
3375          }
3376          else
3377          {
3378
3379             Vector3Df vector { 0,0,-1 };
3380             Vector3Df direction;
3381             Matrix mat;
3382
3383             mat.RotationQuaternion(light.orientation);
3384             direction.MultMatrix(vector, mat);
3385
3386             position[0] = direction.x;
3387             position[1] = direction.y;
3388             position[2] = direction.z;
3389
3390             glLightfv(GL_LIGHT0 + id, GL_POSITION, position);
3391          }
3392       }
3393       else
3394          glDisable(GL_LIGHT0 + id);
3395    }
3396
3397    void SetCamera(Display display, Surface surface, Camera camera)
3398    {
3399       OGLDisplay oglDisplay = display.driverData;
3400       //Logf("SetCamera\n");
3401
3402       if(camera)
3403       {
3404          int left = surface.box.left + surface.offset.x;
3405          int top = surface.box.top  + surface.offset.y;
3406          int right = surface.box.right + surface.offset.x;
3407          int bottom = surface.box.bottom + surface.offset.y;
3408          float origX = surface.offset.x + camera.origin.x;
3409          float origY = surface.offset.y + camera.origin.y;
3410          int x = left;
3411          int y = display.height - bottom - 1;
3412          int w = right - left + 1;
3413          int h = bottom - top + 1;
3414
3415          // *** ViewPort ***
3416          glViewport(x, y, w, h);
3417
3418          // *** Projection Matrix ***
3419          if(!display.display3D.camera)
3420             glPushMatrix();
3421          else
3422             glMatrixMode(GL_PROJECTION);
3423          if(display.display3D.collectingHits)
3424          {
3425             float pickX = display.display3D.pickX + surface.offset.x;
3426             float pickY = display.height - (display.display3D.pickY + surface.offset.y) - 1;
3427             Matrix pickMatrix
3428             {
3429                {
3430                   w / display.display3D.pickWidth, 0, 0, 0,
3431                   0, h / display.display3D.pickHeight, 0, 0,
3432                   0, 0, 1, 0,
3433                   (w + 2.0f * (x - pickX)) / display.display3D.pickWidth,
3434                   (h + 2.0f * (y - pickY)) / display.display3D.pickHeight, 0, 1
3435                }
3436             };
3437             glLoadMatrixd(pickMatrix.array);
3438          }
3439          else
3440             glLoadIdentity();
3441          glFrustum(
3442             (left   - origX) * camera.zMin / camera.focalX,
3443             (right  - origX) * camera.zMin / camera.focalX,
3444             (bottom - origY) * camera.zMin / camera.focalY,
3445             (top    - origY) * camera.zMin / camera.focalY,
3446             camera.zMin, camera.zMax);
3447
3448          glDisable(GL_BLEND);
3449
3450          // *** Z Inverted Identity Matrix ***
3451          glMatrixMode(GL_MODELVIEW);
3452          if(!display.display3D.camera)
3453             glPushMatrix();
3454
3455          glLoadIdentity();
3456
3457          glScaled(1.0/nearPlane, 1.0/nearPlane, -1.0/nearPlane);
3458
3459          // *** View Matrix ***
3460          glMultMatrixd(camera.viewMatrix.array);
3461
3462          // *** Lights ***
3463          // ...
3464
3465          glEnable(GL_DEPTH_TEST);
3466          glEnable(GL_LIGHTING);
3467          glShadeModel(GL_SMOOTH);
3468          glDepthMask((byte)bool::true);
3469          oglDisplay.depthWrite = true;
3470
3471          glEnable(GL_MULTISAMPLE_ARB);
3472       }
3473       else if(display.display3D.camera)
3474       {
3475          oglDisplay.depthWrite = false;
3476          glViewport(0,0,display.width,display.height);
3477
3478          glDisable(GL_CULL_FACE);
3479          glDisable(GL_DEPTH_TEST);
3480          glDisable(GL_LIGHTING);
3481          glDisable(GL_FOG);
3482          glDisable(GL_TEXTURE_2D);
3483          glShadeModel(GL_FLAT);
3484          glEnable(GL_BLEND);
3485          glDisable(GL_MULTISAMPLE_ARB);
3486
3487          // *** Restore 2D MODELVIEW Matrix ***
3488          glPopMatrix();
3489
3490          // *** Restore 2D PROJECTION Matrix ***
3491          glMatrixMode(GL_PROJECTION);
3492          glPopMatrix();
3493       }
3494
3495       GLBindBuffer(GL_ARRAY_BUFFER_ARB, 0);
3496    }
3497
3498    void ApplyMaterial(Display display, Material material, Mesh mesh)
3499    {
3500       //Logf("ApplyMaterial\n");
3501
3502       // Basic Properties
3503       if(material.flags.doubleSided)
3504       {
3505          glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, !material.flags.singleSideLight);
3506          glDisable(GL_CULL_FACE);
3507       }
3508       else
3509       {
3510          glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, bool::false);
3511          glEnable(GL_CULL_FACE);
3512       }
3513
3514       // Fog
3515       if(material.flags.noFog)
3516          glDisable(GL_FOG);
3517       else
3518          glEnable(GL_FOG);
3519
3520       // Maps
3521       if(material.baseMap && (mesh.texCoords || mesh.flags.texCoords1))
3522       {
3523          Bitmap map = material.baseMap;
3524          glEnable(GL_TEXTURE_2D);
3525          glBindTexture(GL_TEXTURE_2D, (GLuint)(uintptr)map.driverData);
3526
3527          glMatrixMode(GL_TEXTURE);
3528          glLoadIdentity();
3529          if(material.uScale && material.vScale)
3530             glScalef(material.uScale, material.vScale, 1);
3531          glMatrixMode(GL_MODELVIEW);
3532
3533          if(material.flags.tile)
3534          {
3535             glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
3536             glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
3537          }
3538          else
3539          {
3540             glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
3541             glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
3542          }
3543       }
3544       else
3545          glDisable(GL_TEXTURE_2D);
3546
3547       if(mesh.flags.colors)
3548       {
3549          glColorMaterial(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE);
3550          glEnable(GL_COLOR_MATERIAL);
3551       }
3552       else
3553       {
3554          glDisable(GL_COLOR_MATERIAL);
3555          {
3556             float color[4] = { material.diffuse.r, material.diffuse.g, material.diffuse.b, material.opacity };
3557             glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE, color);
3558          }
3559          {
3560             float color[4] = { material.ambient.r, material.ambient.g, material.ambient.b, 0 };
3561             glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT, color);
3562          }
3563       }
3564       {
3565          float color[4] = { material.specular.r, material.specular.g, material.specular.b, 0 };
3566          glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, color);
3567       }
3568       {
3569          float color[4] = { material.emissive.r, material.emissive.g, material.emissive.b, 0 };
3570          glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, color);
3571       }
3572
3573       glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, &material.power);
3574    }
3575
3576    void FreeMesh(DisplaySystem displaySystem, Mesh mesh)
3577    {
3578       OGLMesh oglMesh = mesh.data;
3579       if(oglMesh)
3580       {
3581          if(!mesh.flags.vertices)
3582          {
3583             if(oglMesh.vertices)
3584             {
3585                GLDeleteBuffers(1, &oglMesh.vertices);
3586                oglMesh.vertices = 0;
3587             }
3588             delete mesh.vertices;
3589          }
3590          if(!mesh.flags.normals)
3591          {
3592             if(oglMesh.normals)
3593             {
3594                GLDeleteBuffers(1, &oglMesh.normals);
3595                oglMesh.normals = 0;
3596             }
3597             delete mesh.normals;
3598          }
3599          if(!mesh.flags.texCoords1)
3600          {
3601             if(oglMesh.texCoords)
3602             {
3603                GLDeleteBuffers(1, &oglMesh.texCoords);
3604                oglMesh.texCoords = 0;
3605             }
3606             delete mesh.texCoords;
3607          }
3608          if(!mesh.flags.texCoords2)
3609          {
3610             if(oglMesh.texCoords2)
3611             {
3612                GLDeleteBuffers(1, &oglMesh.texCoords2);
3613                oglMesh.texCoords2 = 0;
3614             }
3615             /*
3616             delete mesh.texCoords2;
3617             */
3618          }
3619          if(!mesh.flags.colors)
3620          {
3621             if(oglMesh.colors)
3622             {
3623                GLDeleteBuffers(1, &oglMesh.colors);
3624                oglMesh.colors = 0;
3625             }
3626          }
3627          if(!mesh.flags)
3628          {
3629             delete oglMesh;
3630             mesh.data = null;
3631          }
3632       }
3633    }
3634
3635    bool AllocateMesh(DisplaySystem displaySystem, Mesh mesh, MeshFeatures flags, int nVertices)
3636    {
3637       bool result = false;
3638
3639       if(!mesh.data)
3640          mesh.data = OGLMesh { };
3641       if(mesh.data)
3642       {
3643          OGLMesh oglMesh = mesh.data;
3644          if(mesh.nVertices == nVertices)
3645          {
3646             // Same number of vertices, adding features (Leaves the other features pointers alone)
3647             if(mesh.flags != flags)
3648             {
3649                if(!mesh.flags.vertices && flags.vertices)
3650                {
3651                   if(flags.doubleVertices)
3652                   {
3653                      mesh.vertices = (Vector3Df *)new Vector3D[nVertices];
3654                   }
3655                   else
3656                      mesh.vertices = new Vector3Df[nVertices];
3657                   if(!oglMesh.vertices)
3658                      GLGenBuffers(1, &oglMesh.vertices);
3659                }
3660                if(!mesh.flags.normals && flags.normals)
3661                {
3662                   if(flags.doubleNormals)
3663                   {
3664                      mesh.normals = (Vector3Df *)new Vector3D[nVertices];
3665                   }
3666                   else
3667                      mesh.normals = new Vector3Df[nVertices];
3668                   if(!oglMesh.normals)
3669                      GLGenBuffers( 1, &oglMesh.normals);
3670                }
3671                if(!mesh.flags.texCoords1 && flags.texCoords1)
3672                {
3673                   mesh.texCoords = new Pointf[nVertices];
3674                   if(!oglMesh.texCoords)
3675                      GLGenBuffers( 1, &oglMesh.texCoords);
3676                }
3677                if(!mesh.flags.colors && flags.colors)
3678                {
3679                   mesh.colors = new ColorRGBAf[nVertices];
3680                   if(!oglMesh.colors)
3681                      GLGenBuffers( 1, &oglMesh.colors);
3682                }
3683             }
3684          }
3685          else
3686          {
3687             // New number of vertices, reallocate all current and new features
3688             flags |= mesh.flags;
3689             if(flags.vertices)
3690             {
3691                if(flags.doubleVertices)
3692                {
3693                   mesh.vertices = (Vector3Df *)renew mesh.vertices Vector3D[nVertices];
3694                }
3695                else
3696                   mesh.vertices = renew mesh.vertices Vector3Df[nVertices];
3697                if(!oglMesh.vertices)
3698                   GLGenBuffers(1, &oglMesh.vertices);
3699             }
3700             if(flags.normals)
3701             {
3702                if(flags.doubleNormals)
3703                {
3704                   mesh.normals = (Vector3Df *)renew mesh.normals Vector3D[nVertices];
3705                }
3706                else
3707                   mesh.normals = renew mesh.normals Vector3Df[nVertices];
3708                if(!oglMesh.normals)
3709                   GLGenBuffers( 1, &oglMesh.normals);
3710             }
3711             if(flags.texCoords1)
3712             {
3713                mesh.texCoords = renew mesh.texCoords Pointf[nVertices];
3714                if(!oglMesh.texCoords)
3715                   GLGenBuffers( 1, &oglMesh.texCoords);
3716             }
3717             if(flags.colors)
3718             {
3719                mesh.colors = renew mesh.colors ColorRGBAf[nVertices];
3720                if(!oglMesh.colors)
3721                   GLGenBuffers( 1, &oglMesh.colors);
3722             }
3723          }
3724          result = true;
3725       }
3726       return result;
3727    }
3728
3729    void UnlockMesh(DisplaySystem displaySystem, Mesh mesh, MeshFeatures flags)
3730    {
3731       OGLMesh oglMesh = mesh.data;
3732       if(!flags) flags = mesh.flags;
3733
3734       if(vboAvailable)
3735       {
3736          if(flags.vertices && oglMesh.vertices)
3737          {
3738             GLBindBuffer(GL_ARRAY_BUFFER_ARB, oglMesh.vertices);
3739             GLBufferData( mesh.flags.doubleVertices ? GL_DOUBLE : GL_FLOAT, GL_ARRAY_BUFFER_ARB, mesh.nVertices * (mesh.flags.doubleVertices ? sizeof(Vector3D) : sizeof(Vector3Df)), mesh.vertices, GL_STATIC_DRAW_ARB );
3740          }
3741
3742          if(flags.normals && oglMesh.normals)
3743          {
3744             GLBindBuffer(GL_ARRAY_BUFFER_ARB, oglMesh.normals);
3745             GLBufferData( mesh.flags.doubleNormals ? GL_DOUBLE : GL_FLOAT, GL_ARRAY_BUFFER_ARB, mesh.nVertices * (mesh.flags.doubleNormals ? sizeof(Vector3D) : sizeof(Vector3Df)), mesh.normals, GL_STATIC_DRAW_ARB );
3746          }
3747
3748          if(flags.texCoords1 && oglMesh.texCoords)
3749          {
3750             GLBindBuffer(GL_ARRAY_BUFFER_ARB, oglMesh.texCoords);
3751             GLBufferData( GL_FLOAT, GL_ARRAY_BUFFER_ARB, mesh.nVertices * sizeof(Pointf), mesh.texCoords, GL_STATIC_DRAW_ARB );
3752          }
3753
3754          if(flags.colors && oglMesh.colors)
3755          {
3756             GLBindBuffer( GL_ARRAY_BUFFER_ARB, oglMesh.colors);
3757             GLBufferData( GL_FLOAT, GL_ARRAY_BUFFER_ARB, mesh.nVertices * sizeof(ColorRGBAf), mesh.colors, GL_STATIC_DRAW_ARB );
3758          }
3759
3760          GLBindBuffer( GL_ARRAY_BUFFER_ARB, 0);
3761       }
3762    }
3763
3764    bool LockMesh(DisplaySystem displaySystem, Mesh mesh, MeshFeatures flags)
3765    {
3766       bool result = true;
3767
3768         return result;
3769    }
3770
3771    void FreeIndices(DisplaySystem displaySystem, OGLIndices oglIndices)
3772    {
3773       if(oglIndices)
3774       {
3775          if(oglIndices.buffer)
3776             GLDeleteBuffers(1, &oglIndices.buffer);
3777          delete oglIndices.indices;
3778          delete oglIndices;
3779       }
3780    }
3781
3782    void * AllocateIndices(DisplaySystem displaySystem, int nIndices, bool indices32bit)
3783    {
3784       OGLIndices oglIndices = OGLIndices { };
3785       if(oglIndices)
3786       {
3787          oglIndices.indices = (void *)(indices32bit ? new uint32[nIndices] : new uint16[nIndices]);
3788          GLGenBuffers( 1, &oglIndices.buffer);
3789          oglIndices.nIndices = nIndices;
3790       }
3791       return oglIndices;
3792    }
3793
3794    void UnlockIndices(DisplaySystem displaySystem, OGLIndices oglIndices, bool indices32bit, int nIndices)
3795    {
3796       if(vboAvailable)
3797       {
3798          GLBindBuffer( GL_ELEMENT_ARRAY_BUFFER_ARB, oglIndices.buffer);
3799          GLBufferData( indices32bit ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT, GL_ELEMENT_ARRAY_BUFFER_ARB, nIndices * (indices32bit ? sizeof(uint32) : sizeof(uint16)),
3800             oglIndices.indices, GL_STATIC_DRAW_ARB);
3801          GLBindBuffer( GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
3802       }
3803    }
3804
3805    uint16 * LockIndices(DisplaySystem displaySystem, OGLIndices oglIndices)
3806    {
3807
3808       return oglIndices.indices;
3809    }
3810
3811    void SelectMesh(Display display, Mesh mesh)
3812    {
3813       //Logf("SelectMesh\n");
3814
3815 #if !defined( __ANDROID__) && !defined(__APPLE__)
3816
3817 #if defined(__WIN32__)
3818       if(glUnlockArraysEXT)
3819 #endif
3820          if(!vboAvailable && display.display3D.mesh)
3821             glUnlockArraysEXT();
3822
3823 #endif
3824       if(mesh)
3825       {
3826          OGLMesh oglMesh = mesh.data;
3827
3828          // *** Vertex Stream ***
3829          glEnableClientState(GL_VERTEX_ARRAY);
3830          if(!display.display3D.collectingHits && oglMesh)
3831          {
3832             GLBindBuffer(GL_ARRAY_BUFFER_ARB, oglMesh.vertices );
3833             glVertexPointer(3, mesh.flags.doubleVertices ? GL_DOUBLE : GL_FLOAT, 0, vboAvailable ? null : mesh.vertices);
3834
3835             // *** Normals Stream ***
3836             if(mesh.normals || mesh.flags.normals)
3837             {
3838                glEnableClientState(GL_NORMAL_ARRAY);
3839                GLBindBuffer(GL_ARRAY_BUFFER_ARB, oglMesh.normals);
3840                glNormalPointer(mesh.flags.doubleNormals ? GL_DOUBLE : GL_FLOAT, 0, vboAvailable ? null : mesh.normals);
3841             }
3842             else
3843                glDisableClientState(GL_NORMAL_ARRAY);
3844
3845             // *** Texture Coordinates Stream ***
3846             if(mesh.texCoords || mesh.flags.texCoords1)
3847             {
3848                glEnableClientState(GL_TEXTURE_COORD_ARRAY);
3849                GLBindBuffer( GL_ARRAY_BUFFER_ARB, oglMesh.texCoords);
3850                glTexCoordPointer(2, GL_FLOAT, 0, vboAvailable ? null : mesh.texCoords);
3851             }
3852             else
3853                glDisableClientState(GL_TEXTURE_COORD_ARRAY);
3854
3855             // *** Color Stream ***
3856             if(mesh.colors || mesh.flags.colors)
3857             {
3858                glEnableClientState(GL_COLOR_ARRAY);
3859                GLBindBuffer( GL_ARRAY_BUFFER_ARB, oglMesh.colors);
3860                glColorPointer(4, GL_FLOAT, 0, vboAvailable ? null : mesh.colors);
3861             }
3862             else
3863                glDisableClientState(GL_COLOR_ARRAY);
3864
3865          }
3866          else
3867          {
3868             GLBindBuffer( GL_ARRAY_BUFFER_ARB, 0);
3869             glVertexPointer(3,mesh.flags.doubleVertices ? GL_DOUBLE : GL_FLOAT,0,mesh.vertices);
3870             if((mesh.normals || mesh.flags.normals) && !display.display3D.collectingHits)
3871             {
3872                glEnableClientState(GL_NORMAL_ARRAY);
3873                glNormalPointer(mesh.flags.doubleNormals ? GL_DOUBLE : GL_FLOAT, 0, mesh.normals);
3874             }
3875             else
3876                glDisableClientState(GL_NORMAL_ARRAY);
3877             if((mesh.texCoords || mesh.flags.texCoords1) && !display.display3D.collectingHits)
3878             {
3879                glEnableClientState(GL_TEXTURE_COORD_ARRAY);
3880                glTexCoordPointer(2, GL_FLOAT, 0, mesh.texCoords);
3881             }
3882             else
3883                glDisableClientState(GL_TEXTURE_COORD_ARRAY);
3884             if((mesh.colors || mesh.flags.colors) && !display.display3D.collectingHits)
3885             {
3886                glEnableClientState(GL_COLOR_ARRAY);
3887                glColorPointer(4, GL_FLOAT, 0, mesh.colors);
3888             }
3889             else
3890                glDisableClientState(GL_COLOR_ARRAY);
3891          }
3892
3893 #if !defined(__ANDROID__) && !defined(__APPLE__)
3894
3895 #if defined(__WIN32__)
3896          if(glLockArraysEXT)
3897 #endif
3898             if(!vboAvailable)
3899                glLockArraysEXT(0, mesh.nVertices);
3900
3901 #endif
3902       }
3903       else
3904          GLBindBuffer(GL_ARRAY_BUFFER_ARB, 0);
3905    }
3906
3907    void DrawPrimitives(Display display, PrimitiveSingle * primitive, Mesh mesh)
3908    {
3909       //Logf("DrawPrimitives\n");
3910
3911       if(primitive->type.vertexRange)
3912          glDrawArrays(primitiveTypes[primitive->type.primitiveType], primitive->first, primitive->nVertices);
3913       else
3914       {
3915          //    *** Hoping the data won't be uploaded at all (Won't really work if another group of the mesh is using the mesh ) ***
3916          // HACK TO SPEED THINGS UP...
3917 #ifndef __ANDROID__
3918          GLBindBuffer(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
3919          if(primitive->nIndices < (mesh.nVertices >> 2) && !primitive->type.indices32bit)
3920          {
3921             int c;
3922             glBegin(primitiveTypes[primitive->type.primitiveType]);
3923             if(primitive->data)
3924             {
3925                OGLIndices oglIndices = primitive->data;
3926                MeshFeatures flags = mesh.flags;
3927                for(c = 0; c<primitive->nIndices; c++)
3928                {
3929                   uint16 index = ((uint16 *) oglIndices.indices)[c];
3930                   if(flags.normals) glNormal3fv((float *)&mesh.normals[index]);
3931                   if(flags.texCoords1) glTexCoord2fv((float *)&mesh.texCoords[index]);
3932                   if(flags.colors) glColor4fv((float *)&mesh.colors[index]);
3933                   glVertex3fv((float *)&mesh.vertices[index]);
3934                }
3935             }
3936             glEnd();
3937          }
3938          else
3939 #endif
3940          {
3941             OGLIndices oglIndices = primitive->data;
3942
3943             if(!display.display3D.collectingHits && vboAvailable && oglIndices)
3944             {
3945                GLBindBuffer(GL_ELEMENT_ARRAY_BUFFER_ARB, oglIndices.buffer);
3946                glDrawElements(primitiveTypes[primitive->type.primitiveType], primitive->nIndices,
3947                   primitive->type.indices32bit ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT, 0);
3948                GLBindBuffer(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
3949             }
3950             else
3951                glDrawElements(primitiveTypes[primitive->type.primitiveType], primitive->nIndices,
3952                   primitive->type.indices32bit ? GL_UNSIGNED_INT : GL_UNSIGNED_SHORT, oglIndices ? oglIndices.indices : primitive->indices);
3953          }
3954       }
3955    }
3956
3957    void PushMatrix(Display display)
3958    {
3959       glPushMatrix();
3960    }
3961
3962    void PopMatrix(Display display, bool setMatrix)
3963    {
3964       glPopMatrix();
3965    }
3966
3967    void SetTransform(Display display, Matrix transMatrix, bool viewSpace, bool useCamera)
3968    {
3969       Matrix matrix = transMatrix;
3970       Camera camera = useCamera ? display.display3D.camera : null;
3971
3972       if(viewSpace)
3973       {
3974          glLoadIdentity();
3975          glScaled(1.0/nearPlane, 1.0/nearPlane, -1.0/nearPlane);
3976       }
3977       else if(camera)
3978       {
3979          glTranslated(
3980             matrix.m[3][0] - camera.cPosition.x,
3981             matrix.m[3][1] - camera.cPosition.y,
3982             matrix.m[3][2] - camera.cPosition.z);
3983       }
3984       else
3985          glTranslated(
3986             matrix.m[3][0],
3987             matrix.m[3][1],
3988             matrix.m[3][2]);
3989
3990       matrix.m[3][0] = 0;
3991       matrix.m[3][1] = 0;
3992       matrix.m[3][2] = 0;
3993
3994       glMultMatrixd(matrix.array);
3995    }
3996 #endif
3997 }
3998
3999 public void UseSingleGLContext(bool useSingle)
4000 {
4001    useSingleGLContext = useSingle;
4002 }
4003
4004 default dllexport void *
4005 #if defined(__WIN32__)
4006 __attribute__((stdcall))
4007 #endif
4008 IS_GLGetContext(DisplaySystem displaySystem)
4009 {
4010    if(displaySystem)
4011    {
4012 #if defined(__WIN32__)
4013       OGLSystem system = displaySystem.driverData;
4014       return system.glrc;
4015 #elif !defined(__ANDROID__)
4016       OGLSystem system = displaySystem.driverData;
4017       return system.glContext;
4018 #else
4019       return eglContext;
4020 #endif
4021    }
4022    return null;
4023 }
4024
4025 #endif