+++ /dev/null
-//========================================================================
-// 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 <malloc.h>
-#include <assert.h>
-
-// Return the value corresponding to the specified attribute
-//
-static int findPixelFormatAttribValue(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 addAttrib(a) \
-{ \
- assert((size_t) attribCount < sizeof(attribs) / sizeof(attribs[0])); \
- attribs[attribCount++] = a; \
-}
-#define findAttribValue(a) \
- findPixelFormatAttribValue(attribs, attribCount, values, a)
-
-// Return a list of available and usable framebuffer configs
-//
-static int choosePixelFormat(_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])];
-
- if (_glfw.wgl.ARB_pixel_format)
- {
- const int attrib = WGL_NUMBER_PIXEL_FORMATS_ARB;
-
- if (!wglGetPixelFormatAttribivARB(window->context.wgl.dc,
- 1, 0, 1, &attrib, &nativeCount))
- {
- _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
- "WGL: Failed to retrieve pixel format attribute");
- return 0;
- }
-
- addAttrib(WGL_SUPPORT_OPENGL_ARB);
- addAttrib(WGL_DRAW_TO_WINDOW_ARB);
- addAttrib(WGL_PIXEL_TYPE_ARB);
- addAttrib(WGL_ACCELERATION_ARB);
- addAttrib(WGL_RED_BITS_ARB);
- addAttrib(WGL_RED_SHIFT_ARB);
- addAttrib(WGL_GREEN_BITS_ARB);
- addAttrib(WGL_GREEN_SHIFT_ARB);
- addAttrib(WGL_BLUE_BITS_ARB);
- addAttrib(WGL_BLUE_SHIFT_ARB);
- addAttrib(WGL_ALPHA_BITS_ARB);
- addAttrib(WGL_ALPHA_SHIFT_ARB);
- addAttrib(WGL_DEPTH_BITS_ARB);
- addAttrib(WGL_STENCIL_BITS_ARB);
- addAttrib(WGL_ACCUM_BITS_ARB);
- addAttrib(WGL_ACCUM_RED_BITS_ARB);
- addAttrib(WGL_ACCUM_GREEN_BITS_ARB);
- addAttrib(WGL_ACCUM_BLUE_BITS_ARB);
- addAttrib(WGL_ACCUM_ALPHA_BITS_ARB);
- addAttrib(WGL_AUX_BUFFERS_ARB);
- addAttrib(WGL_STEREO_ARB);
- addAttrib(WGL_DOUBLE_BUFFER_ARB);
-
- if (_glfw.wgl.ARB_multisample)
- addAttrib(WGL_SAMPLES_ARB);
-
- if (ctxconfig->client == GLFW_OPENGL_API)
- {
- if (_glfw.wgl.ARB_framebuffer_sRGB || _glfw.wgl.EXT_framebuffer_sRGB)
- addAttrib(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB);
- }
- else
- {
- if (_glfw.wgl.EXT_colorspace)
- addAttrib(WGL_COLORSPACE_EXT);
- }
- }
- else
- {
- nativeCount = DescribePixelFormat(window->context.wgl.dc,
- 1,
- sizeof(PIXELFORMATDESCRIPTOR),
- NULL);
- }
-
- usableConfigs = 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");
-
- free(usableConfigs);
- return 0;
- }
-
- if (!findAttribValue(WGL_SUPPORT_OPENGL_ARB) ||
- !findAttribValue(WGL_DRAW_TO_WINDOW_ARB))
- {
- continue;
- }
-
- if (findAttribValue(WGL_PIXEL_TYPE_ARB) != WGL_TYPE_RGBA_ARB)
- continue;
-
- if (findAttribValue(WGL_ACCELERATION_ARB) == WGL_NO_ACCELERATION_ARB)
- continue;
-
- u->redBits = findAttribValue(WGL_RED_BITS_ARB);
- u->greenBits = findAttribValue(WGL_GREEN_BITS_ARB);
- u->blueBits = findAttribValue(WGL_BLUE_BITS_ARB);
- u->alphaBits = findAttribValue(WGL_ALPHA_BITS_ARB);
-
- u->depthBits = findAttribValue(WGL_DEPTH_BITS_ARB);
- u->stencilBits = findAttribValue(WGL_STENCIL_BITS_ARB);
-
- u->accumRedBits = findAttribValue(WGL_ACCUM_RED_BITS_ARB);
- u->accumGreenBits = findAttribValue(WGL_ACCUM_GREEN_BITS_ARB);
- u->accumBlueBits = findAttribValue(WGL_ACCUM_BLUE_BITS_ARB);
- u->accumAlphaBits = findAttribValue(WGL_ACCUM_ALPHA_BITS_ARB);
-
- u->auxBuffers = findAttribValue(WGL_AUX_BUFFERS_ARB);
-
- if (findAttribValue(WGL_STEREO_ARB))
- u->stereo = GLFW_TRUE;
- if (findAttribValue(WGL_DOUBLE_BUFFER_ARB))
- u->doublebuffer = GLFW_TRUE;
-
- if (_glfw.wgl.ARB_multisample)
- u->samples = findAttribValue(WGL_SAMPLES_ARB);
-
- if (ctxconfig->client == GLFW_OPENGL_API)
- {
- if (_glfw.wgl.ARB_framebuffer_sRGB ||
- _glfw.wgl.EXT_framebuffer_sRGB)
- {
- if (findAttribValue(WGL_FRAMEBUFFER_SRGB_CAPABLE_ARB))
- u->sRGB = GLFW_TRUE;
- }
- }
- else
- {
- if (_glfw.wgl.EXT_colorspace)
- {
- if (findAttribValue(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");
-
- 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;
-
- 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;
- if (pfd.dwFlags & PFD_DOUBLEBUFFER)
- u->doublebuffer = GLFW_TRUE;
- }
-
- u->handle = pixelFormat;
- usableCount++;
- }
-
- if (!usableCount)
- {
- _glfwInputError(GLFW_API_UNAVAILABLE,
- "WGL: The driver does not appear to support OpenGL");
-
- free(usableConfigs);
- return 0;
- }
-
- closest = _glfwChooseFBConfig(fbconfig, usableConfigs, usableCount);
- if (!closest)
- {
- _glfwInputError(GLFW_FORMAT_UNAVAILABLE,
- "WGL: Failed to find a suitable pixel format");
-
- free(usableConfigs);
- return 0;
- }
-
- pixelFormat = (int) closest->handle;
- free(usableConfigs);
-
- return pixelFormat;
-}
-
-#undef addAttrib
-#undef findAttribValue
-
-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)
- {
- if (IsWindowsVistaOrGreater())
- {
- // DWM Composition is always enabled on Win8+
- BOOL enabled = IsWindows8OrGreater();
-
- // HACK: Use DwmFlush when desktop composition is enabled
- if (enabled ||
- (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)
- {
- if (IsWindowsVistaOrGreater())
- {
- // DWM Composition is always enabled on Win8+
- BOOL enabled = IsWindows8OrGreater();
-
- // HACK: Disable WGL swap interval when desktop composition is enabled to
- // avoid interfering with DWM vsync
- if (enabled ||
- (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) GetProcAddress(_glfw.wgl.instance, procname);
-}
-
-static void destroyContextWGL(_GLFWwindow* window)
-{
- if (window->context.wgl.handle)
- {
- wglDeleteContext(window->context.wgl.handle);
- window->context.wgl.handle = NULL;
- }
-}
-
-
-//////////////////////////////////////////////////////////////////////////
-////// GLFW internal API //////
-//////////////////////////////////////////////////////////////////////////
-
-// Initialize WGL
-//
-GLFWbool _glfwInitWGL(void)
-{
- PIXELFORMATDESCRIPTOR pfd;
- HGLRC prc, rc;
- HDC pdc, dc;
-
- if (_glfw.wgl.instance)
- return GLFW_TRUE;
-
- _glfw.wgl.instance = LoadLibraryA("opengl32.dll");
- if (!_glfw.wgl.instance)
- {
- _glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
- "WGL: Failed to load opengl32.dll");
- return GLFW_FALSE;
- }
-
- _glfw.wgl.CreateContext = (PFN_wglCreateContext)
- GetProcAddress(_glfw.wgl.instance, "wglCreateContext");
- _glfw.wgl.DeleteContext = (PFN_wglDeleteContext)
- GetProcAddress(_glfw.wgl.instance, "wglDeleteContext");
- _glfw.wgl.GetProcAddress = (PFN_wglGetProcAddress)
- GetProcAddress(_glfw.wgl.instance, "wglGetProcAddress");
- _glfw.wgl.GetCurrentDC = (PFN_wglGetCurrentDC)
- GetProcAddress(_glfw.wgl.instance, "wglGetCurrentDC");
- _glfw.wgl.GetCurrentContext = (PFN_wglGetCurrentContext)
- GetProcAddress(_glfw.wgl.instance, "wglGetCurrentContext");
- _glfw.wgl.MakeCurrent = (PFN_wglMakeCurrent)
- GetProcAddress(_glfw.wgl.instance, "wglMakeCurrent");
- _glfw.wgl.ShareLists = (PFN_wglShareLists)
- GetProcAddress(_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)
- FreeLibrary(_glfw.wgl.instance);
-}
-
-#define setAttrib(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 = choosePixelFormat(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)
- {
- setAttrib(WGL_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
- WGL_NO_RESET_NOTIFICATION_ARB);
- }
- else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
- {
- setAttrib(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)
- {
- setAttrib(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
- WGL_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
- }
- else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
- {
- setAttrib(WGL_CONTEXT_RELEASE_BEHAVIOR_ARB,
- WGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
- }
- }
- }
-
- if (ctxconfig->noerror)
- {
- if (_glfw.wgl.ARB_create_context_no_error)
- setAttrib(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)
- {
- setAttrib(WGL_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
- setAttrib(WGL_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
- }
-
- if (flags)
- setAttrib(WGL_CONTEXT_FLAGS_ARB, flags);
-
- if (mask)
- setAttrib(WGL_CONTEXT_PROFILE_MASK_ARB, mask);
-
- setAttrib(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 setAttrib
-
-
-//////////////////////////////////////////////////////////////////////////
-////// GLFW native API //////
-//////////////////////////////////////////////////////////////////////////
-
-GLFWAPI HGLRC glfwGetWGLContext(GLFWwindow* handle)
-{
- _GLFWwindow* window = (_GLFWwindow*) handle;
- _GLFW_REQUIRE_INIT_OR_RETURN(NULL);
-
- if (window->context.client == GLFW_NO_API)
- {
- _glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
- return NULL;
- }
-
- return window->context.wgl.handle;
-}
-
projects / pistorm / blobdiff