struct gl_platform *gl_platform_create(device_t device,
struct gs_init_data *info)
{
struct gl_platform *plat = bmalloc(sizeof(struct gl_platform));
struct dummy_context dummy;
int pixel_format;
PIXELFORMATDESCRIPTOR pfd;
memset(plat, 0, sizeof(struct gl_platform));
memset(&dummy, 0, sizeof(struct dummy_context));
if (!gl_dummy_context_init(&dummy))
goto fail;
if (!gl_init_extensions(device))
goto fail;
/* you have to have a dummy context open before you can actually
* use wglChoosePixelFormatARB */
if (!gl_getpixelformat(dummy.hdc, info, &pixel_format, &pfd))
goto fail;
gl_dummy_context_free(&dummy);
if (!init_default_swap(plat, device, pixel_format, &pfd, info))
goto fail;
plat->hrc = gl_init_context(plat->swap.wi->hdc);
if (!plat->hrc)
goto fail;
if (GLEW_ARB_seamless_cube_map) {
glEnable(GL_TEXTURE_CUBE_MAP_SEAMLESS);
gl_success("GL_TEXTURE_CUBE_MAP_SEAMLESS");
}
#ifdef _DEBUG
if (GLEW_AMD_debug_output) {
glDebugMessageEnableAMD(0, 0, 0, NULL, true);
glDebugMessageCallbackAMD(gl_debug_message_amd, device);
gl_success("glDebugMessageCallback");
}
#endif
return plat;
fail:
blog(LOG_ERROR, "gl_platform_create failed");
gl_platform_destroy(plat);
gl_dummy_context_free(&dummy);
return NULL;
}
void GFXGLDevice::initGLState()
{
// We don't currently need to sync device state with a known good place because we are
// going to set everything in GFXGLStateBlock, but if we change our GFXGLStateBlock strategy, this may
// need to happen.
// Deal with the card profiler here when we know we have a valid context.
mCardProfiler = new GFXGLCardProfiler();
mCardProfiler->init();
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS, (GLint*)&mMaxShaderTextures);
// JTH: Needs removed, ffp
//glGetIntegerv(GL_MAX_TEXTURE_UNITS, (GLint*)&mMaxFFTextures);
glGetIntegerv(GL_MAX_COLOR_ATTACHMENTS, (GLint*)&mMaxTRColors);
mMaxTRColors = getMin( mMaxTRColors, (U32)(GFXTextureTarget::MaxRenderSlotId-1) );
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
// [JTH 5/6/2016] GLSL 1.50 is really SM 4.0
// Setting mPixelShaderVersion to 3.0 will allow Advanced Lighting to run.
mPixelShaderVersion = 3.0;
// Set capability extensions.
mCapabilities.anisotropicFiltering = mCardProfiler->queryProfile("GL_EXT_texture_filter_anisotropic");
mCapabilities.bufferStorage = mCardProfiler->queryProfile("GL_ARB_buffer_storage");
mCapabilities.shaderModel5 = mCardProfiler->queryProfile("GL_ARB_gpu_shader5");
mCapabilities.textureStorage = mCardProfiler->queryProfile("GL_ARB_texture_storage");
mCapabilities.samplerObjects = mCardProfiler->queryProfile("GL_ARB_sampler_objects");
mCapabilities.copyImage = mCardProfiler->queryProfile("GL_ARB_copy_image");
mCapabilities.vertexAttributeBinding = mCardProfiler->queryProfile("GL_ARB_vertex_attrib_binding");
String vendorStr = (const char*)glGetString( GL_VENDOR );
if( vendorStr.find("NVIDIA", 0, String::NoCase | String::Left) != String::NPos)
mUseGlMap = false;
// Workaround for all Mac's, has a problem using glMap* with volatile buffers
#ifdef TORQUE_OS_MAC
mUseGlMap = false;
#endif
#if TORQUE_DEBUG
if( gglHasExtension(ARB_debug_output) )
{
glEnable(GL_DEBUG_OUTPUT);
glDebugMessageCallbackARB(glDebugCallback, NULL);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
GLuint unusedIds = 0;
glDebugMessageControlARB(GL_DONT_CARE,
GL_DONT_CARE,
GL_DONT_CARE,
0,
&unusedIds,
GL_TRUE);
}
else if(gglHasExtension(AMD_debug_output))
{
glEnable(GL_DEBUG_OUTPUT);
glDebugMessageCallbackAMD(glAmdDebugCallback, NULL);
//glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB);
GLuint unusedIds = 0;
glDebugMessageEnableAMD(GL_DONT_CARE, GL_DONT_CARE, 0,&unusedIds, GL_TRUE);
}
#endif
PlatformGL::setVSync(smDisableVSync ? 0 : 1);
//install vsync callback
Con::NotifyDelegate clbk(this, &GFXGLDevice::vsyncCallback);
Con::addVariableNotify("$pref::Video::disableVerticalSync", clbk);
//OpenGL 3 need a binded VAO for render
GLuint vao;
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
}
