| 50 | VAR(ati_mda_bug, 0, 0, 1); |
| 51 | |
| 52 | void gl_checkextensions() |
| 53 | { |
| 54 | const char *vendor = (const char *)glGetString(GL_VENDOR); |
| 55 | const char *exts = (const char *)glGetString(GL_EXTENSIONS); |
| 56 | const char *renderer = (const char *)glGetString(GL_RENDERER); |
| 57 | const char *version = (const char *)glGetString(GL_VERSION); |
| 58 | conoutf("Renderer: %s (%s)", renderer, vendor); |
| 59 | conoutf("Driver: %s", version); |
| 60 | |
| 61 | if(hasext(exts, "GL_EXT_texture_env_combine") || hasext(exts, "GL_ARB_texture_env_combine")) hasTE = true; |
| 62 | else conoutf("WARNING: cannot use overbright lighting, using old lighting model!"); |
| 63 | |
| 64 | if(hasext(exts, "GL_ARB_multitexture")) |
| 65 | { |
| 66 | glActiveTexture_ = (PFNGLACTIVETEXTUREARBPROC) getprocaddress("glActiveTextureARB"); |
| 67 | glClientActiveTexture_ = (PFNGLCLIENTACTIVETEXTUREARBPROC)getprocaddress("glClientActiveTextureARB"); |
| 68 | glMultiTexCoord2f_ = (PFNGLMULTITEXCOORD2FARBPROC) getprocaddress("glMultiTexCoord2fARB"); |
| 69 | glMultiTexCoord3f_ = (PFNGLMULTITEXCOORD3FARBPROC) getprocaddress("glMultiTexCoord3fARB"); |
| 70 | hasMT = true; |
| 71 | } |
| 72 | |
| 73 | if(hasext(exts, "GL_EXT_multi_draw_arrays")) |
| 74 | { |
| 75 | glMultiDrawArrays_ = (PFNGLMULTIDRAWARRAYSEXTPROC) getprocaddress("glMultiDrawArraysEXT"); |
| 76 | glMultiDrawElements_ = (PFNGLMULTIDRAWELEMENTSEXTPROC)getprocaddress("glMultiDrawElementsEXT"); |
| 77 | hasMDA = true; |
| 78 | |
| 79 | if(strstr(vendor, "ATI") || strstr(renderer, "Mesa") || strstr(version, "Mesa")) ati_mda_bug = 1; |
| 80 | } |
| 81 | |
| 82 | if(hasext(exts, "GL_EXT_draw_range_elements")) |
| 83 | { |
| 84 | glDrawRangeElements_ = (PFNGLDRAWRANGEELEMENTSEXTPROC)getprocaddress("glDrawRangeElementsEXT"); |
| 85 | hasDRE = true; |
| 86 | } |
| 87 | |
| 88 | if(hasext(exts, "GL_EXT_stencil_two_side")) |
| 89 | { |
| 90 | glActiveStencilFace_ = (PFNGLACTIVESTENCILFACEEXTPROC)getprocaddress("glActiveStencilFaceEXT"); |
| 91 | hasST2 = true; |
| 92 | } |
| 93 | |
| 94 | if(hasext(exts, "GL_ATI_separate_stencil")) |
| 95 | { |
| 96 | glStencilOpSeparate_ = (PFNGLSTENCILOPSEPARATEATIPROC) getprocaddress("glStencilOpSeparateATI"); |
| 97 | glStencilFuncSeparate_ = (PFNGLSTENCILFUNCSEPARATEATIPROC)getprocaddress("glStencilFuncSeparateATI"); |
| 98 | hasSTS = true; |
| 99 | } |
| 100 | |
| 101 | if(hasext(exts, "GL_EXT_stencil_wrap")) hasSTW = true; |
| 102 | |
| 103 | if(hasext(exts, "GL_EXT_texture_filter_anisotropic")) |
| 104 | { |
| 105 | GLint val; |
| 106 | glGetIntegerv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &val); |
| 107 | hwmaxaniso = val; |
| 108 | hasAF = true; |
| 109 | } |
no test coverage detected