diff options
Diffstat (limited to 'raylib/external/glfw/src/wgl_context.c')
| -rw-r--r-- | raylib/external/glfw/src/wgl_context.c | 778 |
1 files changed, 0 insertions, 778 deletions
diff --git a/raylib/external/glfw/src/wgl_context.c b/raylib/external/glfw/src/wgl_context.c deleted file mode 100644 index 4a5e77a..0000000 --- a/raylib/external/glfw/src/wgl_context.c +++ /dev/null @@ -1,778 +0,0 @@ -//======================================================================== -// GLFW 3.4 WGL - www.glfw.org -//------------------------------------------------------------------------ -// Copyright (c) 2002-2006 Marcus Geelnard -// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org> -// -// This software is provided 'as-is', without any express or implied -// warranty. In no event will the authors be held liable for any damages -// arising from the use of this software. -// -// Permission is granted to anyone to use this software for any purpose, -// including commercial applications, and to alter it and redistribute it -// freely, subject to the following restrictions: -// -// 1. The origin of this software must not be misrepresented; you must not -// claim that you wrote the original software. If you use this software -// in a product, an acknowledgment in the product documentation would -// be appreciated but is not required. -// -// 2. Altered source versions must be plainly marked as such, and must not -// be misrepresented as being the original software. -// -// 3. This notice may not be removed or altered from any source -// distribution. -// -//======================================================================== -// Please use C89 style variable declarations in this file because VS 2010 -//======================================================================== - -#include "internal.h" - -#include <stdlib.h> -#include <assert.h> - -// Return the value corresponding to the specified attribute -// -static int findPixelFormatAttribValueWGL(const int* attribs, - int attribCount, - const int* values, - int attrib) -{ - int i; - - for (i = 0; i < attribCount; i++) - { - if (attribs[i] == attrib) - return values[i]; - } - - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Unknown pixel format attribute requested"); - return 0; -} - -#define ADD_ATTRIB(a) \ -{ \ - assert((size_t) attribCount < sizeof(attribs) / sizeof(attribs[0])); \ - attribs[attribCount++] = a; \ -} -#define FIND_ATTRIB_VALUE(a) \ - findPixelFormatAttribValueWGL(attribs, attribCount, values, a) - -// Return a list of available and usable framebuffer configs -// -static int choosePixelFormatWGL(_GLFWwindow* window, - const _GLFWctxconfig* ctxconfig, - const _GLFWfbconfig* fbconfig) -{ - _GLFWfbconfig* usableConfigs; - const _GLFWfbconfig* closest; - int i, pixelFormat, nativeCount, usableCount = 0, attribCount = 0; - int attribs[40]; - int values[sizeof(attribs) / sizeof(attribs[0])]; - - nativeCount = DescribePixelFormat(window->context.wgl.dc, - 1, - sizeof(PIXELFORMATDESCRIPTOR), - NULL); - - if (_glfw.wgl.ARB_pixel_format) - { - ADD_ATTRIB(WGL_SUPPORT_OPENGL_ARB); - ADD_ATTRIB(WGL_DRAW_TO_WINDOW_ARB); - ADD_ATTRIB(WGL_PIXEL_TYPE_ARB); - ADD_ATTRIB(WGL_ACCELERATION_ARB); - ADD_ATTRIB(WGL_RED_BITS_ARB); - ADD_ATTRIB(WGL_RED_SHIFT_ARB); - ADD_ATTRIB(WGL_GREEN_BITS_ARB); - ADD_ATTRIB(WGL_GREEN_SHIFT_ARB); - ADD_ATTRIB(WGL_BLUE_BITS_ARB); - ADD_ATTRIB(WGL_BLUE_SHIFT_ARB); - ADD_ATTRIB(WGL_ALPHA_BITS_ARB); - ADD_ATTRIB(WGL_ALPHA_SHIFT_ARB); - ADD_ATTRIB(WGL_DEPTH_BITS_ARB); - ADD_ATTRIB(WGL_STENCIL_BITS_ARB); - ADD_ATTRIB(WGL_ACCUM_BITS_ARB); - ADD_ATTRIB(WGL_ACCUM_RED_BITS_ARB); - ADD_ATTRIB(WGL_ACCUM_GREEN_BITS_ARB); - ADD_ATTRIB(WGL_ACCUM_BLUE_BITS_ARB); - ADD_ATTRIB(WGL_ACCUM_ALPHA_BITS_ARB); - ADD_ATTRIB(WGL_AUX_BUFFERS_ARB); - ADD_ATTRIB(WGL_STEREO_ARB); - ADD_ATTRIB(WGL_DOUBLE_BUFFER_ARB); - - if (_glfw.wgl.ARB_multisample) - ADD_ATTRIB(WGL_SAMPLES_ARB); - - if (ctxconfig->client == GLFW_OPENGL_API) - { - if (_glfw.wgl.ARB_framebuffer_sRGB || _glfw.wgl.EXT_framebuffer_sRGB) - ADD_ATTRIB(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB); - } - else - { - if (_glfw.wgl.EXT_colorspace) - ADD_ATTRIB(WGL_COLORSPACE_EXT); - } - } - - usableConfigs = _glfw_calloc(nativeCount, sizeof(_GLFWfbconfig)); - - for (i = 0; i < nativeCount; i++) - { - _GLFWfbconfig* u = usableConfigs + usableCount; - pixelFormat = i + 1; - - if (_glfw.wgl.ARB_pixel_format) - { - // Get pixel format attributes through "modern" extension - - if (!wglGetPixelFormatAttribivARB(window->context.wgl.dc, - pixelFormat, 0, - attribCount, - attribs, values)) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to retrieve pixel format attributes"); - - _glfw_free(usableConfigs); - return 0; - } - - if (!FIND_ATTRIB_VALUE(WGL_SUPPORT_OPENGL_ARB) || - !FIND_ATTRIB_VALUE(WGL_DRAW_TO_WINDOW_ARB)) - { - continue; - } - - if (FIND_ATTRIB_VALUE(WGL_PIXEL_TYPE_ARB) != WGL_TYPE_RGBA_ARB) - continue; - - if (FIND_ATTRIB_VALUE(WGL_ACCELERATION_ARB) == WGL_NO_ACCELERATION_ARB) - continue; - - if (FIND_ATTRIB_VALUE(WGL_DOUBLE_BUFFER_ARB) != fbconfig->doublebuffer) - continue; - - u->redBits = FIND_ATTRIB_VALUE(WGL_RED_BITS_ARB); - u->greenBits = FIND_ATTRIB_VALUE(WGL_GREEN_BITS_ARB); - u->blueBits = FIND_ATTRIB_VALUE(WGL_BLUE_BITS_ARB); - u->alphaBits = FIND_ATTRIB_VALUE(WGL_ALPHA_BITS_ARB); - - u->depthBits = FIND_ATTRIB_VALUE(WGL_DEPTH_BITS_ARB); - u->stencilBits = FIND_ATTRIB_VALUE(WGL_STENCIL_BITS_ARB); - - u->accumRedBits = FIND_ATTRIB_VALUE(WGL_ACCUM_RED_BITS_ARB); - u->accumGreenBits = FIND_ATTRIB_VALUE(WGL_ACCUM_GREEN_BITS_ARB); - u->accumBlueBits = FIND_ATTRIB_VALUE(WGL_ACCUM_BLUE_BITS_ARB); - u->accumAlphaBits = FIND_ATTRIB_VALUE(WGL_ACCUM_ALPHA_BITS_ARB); - - u->auxBuffers = FIND_ATTRIB_VALUE(WGL_AUX_BUFFERS_ARB); - - if (FIND_ATTRIB_VALUE(WGL_STEREO_ARB)) - u->stereo = GLFW_TRUE; - - if (_glfw.wgl.ARB_multisample) - u->samples = FIND_ATTRIB_VALUE(WGL_SAMPLES_ARB); - - if (ctxconfig->client == GLFW_OPENGL_API) - { - if (_glfw.wgl.ARB_framebuffer_sRGB || - _glfw.wgl.EXT_framebuffer_sRGB) - { - if (FIND_ATTRIB_VALUE(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB)) - u->sRGB = GLFW_TRUE; - } - } - else - { - if (_glfw.wgl.EXT_colorspace) - { - if (FIND_ATTRIB_VALUE(WGL_COLORSPACE_EXT) == WGL_COLORSPACE_SRGB_EXT) - u->sRGB = GLFW_TRUE; - } - } - } - else - { - // Get pixel format attributes through legacy PFDs - - PIXELFORMATDESCRIPTOR pfd; - - if (!DescribePixelFormat(window->context.wgl.dc, - pixelFormat, - sizeof(PIXELFORMATDESCRIPTOR), - &pfd)) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to describe pixel format"); - - _glfw_free(usableConfigs); - return 0; - } - - if (!(pfd.dwFlags & PFD_DRAW_TO_WINDOW) || - !(pfd.dwFlags & PFD_SUPPORT_OPENGL)) - { - continue; - } - - if (!(pfd.dwFlags & PFD_GENERIC_ACCELERATED) && - (pfd.dwFlags & PFD_GENERIC_FORMAT)) - { - continue; - } - - if (pfd.iPixelType != PFD_TYPE_RGBA) - continue; - - if (!!(pfd.dwFlags & PFD_DOUBLEBUFFER) != fbconfig->doublebuffer) - continue; - - u->redBits = pfd.cRedBits; - u->greenBits = pfd.cGreenBits; - u->blueBits = pfd.cBlueBits; - u->alphaBits = pfd.cAlphaBits; - - u->depthBits = pfd.cDepthBits; - u->stencilBits = pfd.cStencilBits; - - u->accumRedBits = pfd.cAccumRedBits; - u->accumGreenBits = pfd.cAccumGreenBits; - u->accumBlueBits = pfd.cAccumBlueBits; - u->accumAlphaBits = pfd.cAccumAlphaBits; - - u->auxBuffers = pfd.cAuxBuffers; - - if (pfd.dwFlags & PFD_STEREO) - u->stereo = GLFW_TRUE; - } - - u->handle = pixelFormat; - usableCount++; - } - - if (!usableCount) - { - _glfwInputError(GLFW_API_UNAVAILABLE, - "WGL: The driver does not appear to support OpenGL"); - - _glfw_free(usableConfigs); - return 0; - } - - closest = _glfwChooseFBConfig(fbconfig, usableConfigs, usableCount); - if (!closest) - { - _glfwInputError(GLFW_FORMAT_UNAVAILABLE, - "WGL: Failed to find a suitable pixel format"); - - _glfw_free(usableConfigs); - return 0; - } - - pixelFormat = (int) closest->handle; - _glfw_free(usableConfigs); - - return pixelFormat; -} - -#undef ADD_ATTRIB -#undef FIND_ATTRIB_VALUE - -static void makeContextCurrentWGL(_GLFWwindow* window) -{ - if (window) - { - if (wglMakeCurrent(window->context.wgl.dc, window->context.wgl.handle)) - _glfwPlatformSetTls(&_glfw.contextSlot, window); - else - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to make context current"); - _glfwPlatformSetTls(&_glfw.contextSlot, NULL); - } - } - else - { - if (!wglMakeCurrent(NULL, NULL)) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to clear current context"); - } - - _glfwPlatformSetTls(&_glfw.contextSlot, NULL); - } -} - -static void swapBuffersWGL(_GLFWwindow* window) -{ - if (!window->monitor) - { - // HACK: Use DwmFlush when desktop composition is enabled on Windows Vista and 7 - if (!IsWindows8OrGreater() && IsWindowsVistaOrGreater()) - { - BOOL enabled = FALSE; - - if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled) - { - int count = abs(window->context.wgl.interval); - while (count--) - DwmFlush(); - } - } - } - - SwapBuffers(window->context.wgl.dc); -} - -static void swapIntervalWGL(int interval) -{ - _GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot); - - window->context.wgl.interval = interval; - - if (!window->monitor) - { - // HACK: Disable WGL swap interval when desktop composition is enabled on Windows - // Vista and 7 to avoid interfering with DWM vsync - if (!IsWindows8OrGreater() && IsWindowsVistaOrGreater()) - { - BOOL enabled = FALSE; - - if (SUCCEEDED(DwmIsCompositionEnabled(&enabled)) && enabled) - interval = 0; - } - } - - if (_glfw.wgl.EXT_swap_control) - wglSwapIntervalEXT(interval); -} - -static int extensionSupportedWGL(const char* extension) -{ - const char* extensions = NULL; - - if (_glfw.wgl.GetExtensionsStringARB) - extensions = wglGetExtensionsStringARB(wglGetCurrentDC()); - else if (_glfw.wgl.GetExtensionsStringEXT) - extensions = wglGetExtensionsStringEXT(); - - if (!extensions) - return GLFW_FALSE; - - return _glfwStringInExtensionString(extension, extensions); -} - -static GLFWglproc getProcAddressWGL(const char* procname) -{ - const GLFWglproc proc = (GLFWglproc) wglGetProcAddress(procname); - if (proc) - return proc; - - return (GLFWglproc) _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, procname); -} - -static void destroyContextWGL(_GLFWwindow* window) -{ - if (window->context.wgl.handle) - { - wglDeleteContext(window->context.wgl.handle); - window->context.wgl.handle = NULL; - } -} - -// Initialize WGL -// -GLFWbool _glfwInitWGL(void) -{ - PIXELFORMATDESCRIPTOR pfd; - HGLRC prc, rc; - HDC pdc, dc; - - if (_glfw.wgl.instance) - return GLFW_TRUE; - - _glfw.wgl.instance = _glfwPlatformLoadModule("opengl32.dll"); - if (!_glfw.wgl.instance) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to load opengl32.dll"); - return GLFW_FALSE; - } - - _glfw.wgl.CreateContext = (PFN_wglCreateContext) - _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglCreateContext"); - _glfw.wgl.DeleteContext = (PFN_wglDeleteContext) - _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglDeleteContext"); - _glfw.wgl.GetProcAddress = (PFN_wglGetProcAddress) - _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglGetProcAddress"); - _glfw.wgl.GetCurrentDC = (PFN_wglGetCurrentDC) - _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglGetCurrentDC"); - _glfw.wgl.GetCurrentContext = (PFN_wglGetCurrentContext) - _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglGetCurrentContext"); - _glfw.wgl.MakeCurrent = (PFN_wglMakeCurrent) - _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglMakeCurrent"); - _glfw.wgl.ShareLists = (PFN_wglShareLists) - _glfwPlatformGetModuleSymbol(_glfw.wgl.instance, "wglShareLists"); - - // NOTE: A dummy context has to be created for opengl32.dll to load the - // OpenGL ICD, from which we can then query WGL extensions - // NOTE: This code will accept the Microsoft GDI ICD; accelerated context - // creation failure occurs during manual pixel format enumeration - - dc = GetDC(_glfw.win32.helperWindowHandle); - - ZeroMemory(&pfd, sizeof(pfd)); - pfd.nSize = sizeof(pfd); - pfd.nVersion = 1; - pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER; - pfd.iPixelType = PFD_TYPE_RGBA; - pfd.cColorBits = 24; - - if (!SetPixelFormat(dc, ChoosePixelFormat(dc, &pfd), &pfd)) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to set pixel format for dummy context"); - return GLFW_FALSE; - } - - rc = wglCreateContext(dc); - if (!rc) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to create dummy context"); - return GLFW_FALSE; - } - - pdc = wglGetCurrentDC(); - prc = wglGetCurrentContext(); - - if (!wglMakeCurrent(dc, rc)) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to make dummy context current"); - wglMakeCurrent(pdc, prc); - wglDeleteContext(rc); - return GLFW_FALSE; - } - - // NOTE: Functions must be loaded first as they're needed to retrieve the - // extension string that tells us whether the functions are supported - _glfw.wgl.GetExtensionsStringEXT = (PFNWGLGETEXTENSIONSSTRINGEXTPROC) - wglGetProcAddress("wglGetExtensionsStringEXT"); - _glfw.wgl.GetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC) - wglGetProcAddress("wglGetExtensionsStringARB"); - _glfw.wgl.CreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC) - wglGetProcAddress("wglCreateContextAttribsARB"); - _glfw.wgl.SwapIntervalEXT = (PFNWGLSWAPINTERVALEXTPROC) - wglGetProcAddress("wglSwapIntervalEXT"); - _glfw.wgl.GetPixelFormatAttribivARB = (PFNWGLGETPIXELFORMATATTRIBIVARBPROC) - wglGetProcAddress("wglGetPixelFormatAttribivARB"); - - // NOTE: WGL_ARB_extensions_string and WGL_EXT_extensions_string are not - // checked below as we are already using them - _glfw.wgl.ARB_multisample = - extensionSupportedWGL("WGL_ARB_multisample"); - _glfw.wgl.ARB_framebuffer_sRGB = - extensionSupportedWGL("WGL_ARB_framebuffer_sRGB"); - _glfw.wgl.EXT_framebuffer_sRGB = - extensionSupportedWGL("WGL_EXT_framebuffer_sRGB"); - _glfw.wgl.ARB_create_context = - extensionSupportedWGL("WGL_ARB_create_context"); - _glfw.wgl.ARB_create_context_profile = - extensionSupportedWGL("WGL_ARB_create_context_profile"); - _glfw.wgl.EXT_create_context_es2_profile = - extensionSupportedWGL("WGL_EXT_create_context_es2_profile"); - _glfw.wgl.ARB_create_context_robustness = - extensionSupportedWGL("WGL_ARB_create_context_robustness"); - _glfw.wgl.ARB_create_context_no_error = - extensionSupportedWGL("WGL_ARB_create_context_no_error"); - _glfw.wgl.EXT_swap_control = - extensionSupportedWGL("WGL_EXT_swap_control"); - _glfw.wgl.EXT_colorspace = - extensionSupportedWGL("WGL_EXT_colorspace"); - _glfw.wgl.ARB_pixel_format = - extensionSupportedWGL("WGL_ARB_pixel_format"); - _glfw.wgl.ARB_context_flush_control = - extensionSupportedWGL("WGL_ARB_context_flush_control"); - - wglMakeCurrent(pdc, prc); - wglDeleteContext(rc); - return GLFW_TRUE; -} - -// Terminate WGL -// -void _glfwTerminateWGL(void) -{ - if (_glfw.wgl.instance) - _glfwPlatformFreeModule(_glfw.wgl.instance); -} - -#define SET_ATTRIB(a, v) \ -{ \ - assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \ - attribs[index++] = a; \ - attribs[index++] = v; \ -} - -// Create the OpenGL or OpenGL ES context -// -GLFWbool _glfwCreateContextWGL(_GLFWwindow* window, - const _GLFWctxconfig* ctxconfig, - const _GLFWfbconfig* fbconfig) -{ - int attribs[40]; - int pixelFormat; - PIXELFORMATDESCRIPTOR pfd; - HGLRC share = NULL; - - if (ctxconfig->share) - share = ctxconfig->share->context.wgl.handle; - - window->context.wgl.dc = GetDC(window->win32.handle); - if (!window->context.wgl.dc) - { - _glfwInputError(GLFW_PLATFORM_ERROR, - "WGL: Failed to retrieve DC for window"); - return GLFW_FALSE; - } - - pixelFormat = choosePixelFormatWGL(window, ctxconfig, fbconfig); - if (!pixelFormat) - return GLFW_FALSE; - - if (!DescribePixelFormat(window->context.wgl.dc, - pixelFormat, sizeof(pfd), &pfd)) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to retrieve PFD for selected pixel format"); - return GLFW_FALSE; - } - - if (!SetPixelFormat(window->context.wgl.dc, pixelFormat, &pfd)) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to set selected pixel format"); - return GLFW_FALSE; - } - - if (ctxconfig->client == GLFW_OPENGL_API) - { - if (ctxconfig->forward) - { - if (!_glfw.wgl.ARB_create_context) - { - _glfwInputError(GLFW_VERSION_UNAVAILABLE, - "WGL: A forward compatible OpenGL context requested but WGL_ARB_create_context is unavailable"); - return GLFW_FALSE; - } - } - - if (ctxconfig->profile) - { - if (!_glfw.wgl.ARB_create_context_profile) - { - _glfwInputError(GLFW_VERSION_UNAVAILABLE, - "WGL: OpenGL profile requested but WGL_ARB_create_context_profile is unavailable"); - return GLFW_FALSE; - } - } - } - else - { - if (!_glfw.wgl.ARB_create_context || - !_glfw.wgl.ARB_create_context_profile || - !_glfw.wgl.EXT_create_context_es2_profile) - { - _glfwInputError(GLFW_API_UNAVAILABLE, - "WGL: OpenGL ES requested but WGL_ARB_create_context_es2_profile is unavailable"); - return GLFW_FALSE; - } - } - - if (_glfw.wgl.ARB_create_context) - { - int index = 0, mask = 0, flags = 0; - - if (ctxconfig->client == GLFW_OPENGL_API) - { - if (ctxconfig->forward) - flags |= WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB; - - if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE) - mask |= WGL_CONTEXT_CORE_PROFILE_BIT_ARB; - else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE) - mask |= WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB; - } - else - mask |= WGL_CONTEXT_ES2_PROFILE_BIT_EXT; - - if (ctxconfig->debug) - flags |= WGL_CONTEXT_DEBUG_BIT_ARB; - - if (ctxconfig->robustness) - { - if (_glfw.wgl.ARB_create_context_robustness) - { - if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION) - { - SET_ATTRIB(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, - WGL_NO_RESET_NOTIFICATION_ARB); - } - else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET) - { - SET_ATTRIB(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, - WGL_LOSE_CONTEXT_ON_RESET_ARB); - } - - flags |= WGL_CONTEXT_ROBUST_ACCESS_BIT_ARB; - } - } - - if (ctxconfig->release) - { - if (_glfw.wgl.ARB_context_flush_control) - { - if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE) - { - SET_ATTRIB(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB, - WGL_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB); - } - else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH) - { - SET_ATTRIB(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB, - WGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB); - } - } - } - - if (ctxconfig->noerror) - { - if (_glfw.wgl.ARB_create_context_no_error) - SET_ATTRIB(WGL_CONTEXT_OPENGL_NO_ERROR_ARB, GLFW_TRUE); - } - - // NOTE: Only request an explicitly versioned context when necessary, as - // explicitly requesting version 1.0 does not always return the - // highest version supported by the driver - if (ctxconfig->major != 1 || ctxconfig->minor != 0) - { - SET_ATTRIB(WGL_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major); - SET_ATTRIB(WGL_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor); - } - - if (flags) - SET_ATTRIB(WGL_CONTEXT_FLAGS_ARB, flags); - - if (mask) - SET_ATTRIB(WGL_CONTEXT_PROFILE_MASK_ARB, mask); - - SET_ATTRIB(0, 0); - - window->context.wgl.handle = - wglCreateContextAttribsARB(window->context.wgl.dc, share, attribs); - if (!window->context.wgl.handle) - { - const DWORD error = GetLastError(); - - if (error == (0xc0070000 | ERROR_INVALID_VERSION_ARB)) - { - if (ctxconfig->client == GLFW_OPENGL_API) - { - _glfwInputError(GLFW_VERSION_UNAVAILABLE, - "WGL: Driver does not support OpenGL version %i.%i", - ctxconfig->major, - ctxconfig->minor); - } - else - { - _glfwInputError(GLFW_VERSION_UNAVAILABLE, - "WGL: Driver does not support OpenGL ES version %i.%i", - ctxconfig->major, - ctxconfig->minor); - } - } - else if (error == (0xc0070000 | ERROR_INVALID_PROFILE_ARB)) - { - _glfwInputError(GLFW_VERSION_UNAVAILABLE, - "WGL: Driver does not support the requested OpenGL profile"); - } - else if (error == (0xc0070000 | ERROR_INCOMPATIBLE_DEVICE_CONTEXTS_ARB)) - { - _glfwInputError(GLFW_INVALID_VALUE, - "WGL: The share context is not compatible with the requested context"); - } - else - { - if (ctxconfig->client == GLFW_OPENGL_API) - { - _glfwInputError(GLFW_VERSION_UNAVAILABLE, - "WGL: Failed to create OpenGL context"); - } - else - { - _glfwInputError(GLFW_VERSION_UNAVAILABLE, - "WGL: Failed to create OpenGL ES context"); - } - } - - return GLFW_FALSE; - } - } - else - { - window->context.wgl.handle = wglCreateContext(window->context.wgl.dc); - if (!window->context.wgl.handle) - { - _glfwInputErrorWin32(GLFW_VERSION_UNAVAILABLE, - "WGL: Failed to create OpenGL context"); - return GLFW_FALSE; - } - - if (share) - { - if (!wglShareLists(share, window->context.wgl.handle)) - { - _glfwInputErrorWin32(GLFW_PLATFORM_ERROR, - "WGL: Failed to enable sharing with specified OpenGL context"); - return GLFW_FALSE; - } - } - } - - window->context.makeCurrent = makeContextCurrentWGL; - window->context.swapBuffers = swapBuffersWGL; - window->context.swapInterval = swapIntervalWGL; - window->context.extensionSupported = extensionSupportedWGL; - window->context.getProcAddress = getProcAddressWGL; - window->context.destroy = destroyContextWGL; - - return GLFW_TRUE; -} - -#undef SET_ATTRIB - -GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* handle) -{ - _GLFWwindow* window = (_GLFWwindow*) handle; - _GLFW_REQUIRE_INIT_OR_RETURN(NULL); - - if (_glfw.platform.platformID != GLFW_PLATFORM_WIN32) - { - _glfwInputError(GLFW_PLATFORM_UNAVAILABLE, - "WGL: Platform not initialized"); - return NULL; - } - - if (window->context.source != GLFW_NATIVE_CONTEXT_API) - { - _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL); - return NULL; - } - - return window->context.wgl.handle; -} - |