first commit
This commit is contained in:
Irlan Robson
720
external/glfw/context.c
vendored
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720
external/glfw/context.c
vendored
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@ -0,0 +1,720 @@
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//========================================================================
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// GLFW 3.3 - www.glfw.org
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2016 Camilla Berglund <elmindreda@glfw.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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#include "internal.h"
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#include <assert.h>
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#include <stdio.h>
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//////////////////////////////////////////////////////////////////////////
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////// GLFW internal API //////
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//////////////////////////////////////////////////////////////////////////
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GLFWbool _glfwIsValidContextConfig(const _GLFWctxconfig* ctxconfig)
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{
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if (ctxconfig->source != GLFW_NATIVE_CONTEXT_API &&
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ctxconfig->source != GLFW_EGL_CONTEXT_API)
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{
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_glfwInputError(GLFW_INVALID_ENUM,
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"Invalid context creation API %i",
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ctxconfig->source);
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return GLFW_FALSE;
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}
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if (ctxconfig->client != GLFW_NO_API &&
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ctxconfig->client != GLFW_OPENGL_API &&
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ctxconfig->client != GLFW_OPENGL_ES_API)
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{
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_glfwInputError(GLFW_INVALID_ENUM,
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"Invalid client API %i",
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ctxconfig->client);
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return GLFW_FALSE;
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}
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if (ctxconfig->client == GLFW_OPENGL_API)
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{
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if ((ctxconfig->major < 1 || ctxconfig->minor < 0) ||
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(ctxconfig->major == 1 && ctxconfig->minor > 5) ||
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(ctxconfig->major == 2 && ctxconfig->minor > 1) ||
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(ctxconfig->major == 3 && ctxconfig->minor > 3))
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{
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// OpenGL 1.0 is the smallest valid version
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// OpenGL 1.x series ended with version 1.5
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// OpenGL 2.x series ended with version 2.1
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// OpenGL 3.x series ended with version 3.3
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// For now, let everything else through
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_glfwInputError(GLFW_INVALID_VALUE,
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"Invalid OpenGL version %i.%i",
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ctxconfig->major, ctxconfig->minor);
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return GLFW_FALSE;
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}
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if (ctxconfig->profile)
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{
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if (ctxconfig->profile != GLFW_OPENGL_CORE_PROFILE &&
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ctxconfig->profile != GLFW_OPENGL_COMPAT_PROFILE)
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{
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_glfwInputError(GLFW_INVALID_ENUM,
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"Invalid OpenGL profile %i",
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ctxconfig->profile);
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return GLFW_FALSE;
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}
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if (ctxconfig->major <= 2 ||
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(ctxconfig->major == 3 && ctxconfig->minor < 2))
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{
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// Desktop OpenGL context profiles are only defined for version 3.2
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// and above
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_glfwInputError(GLFW_INVALID_VALUE,
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"Context profiles are only defined for OpenGL version 3.2 and above");
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return GLFW_FALSE;
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}
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}
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if (ctxconfig->forward && ctxconfig->major <= 2)
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{
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// Forward-compatible contexts are only defined for OpenGL version 3.0 and above
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_glfwInputError(GLFW_INVALID_VALUE,
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"Forward-compatibility is only defined for OpenGL version 3.0 and above");
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return GLFW_FALSE;
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}
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}
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else if (ctxconfig->client == GLFW_OPENGL_ES_API)
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{
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if (ctxconfig->major < 1 || ctxconfig->minor < 0 ||
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(ctxconfig->major == 1 && ctxconfig->minor > 1) ||
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(ctxconfig->major == 2 && ctxconfig->minor > 0))
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{
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// OpenGL ES 1.0 is the smallest valid version
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// OpenGL ES 1.x series ended with version 1.1
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// OpenGL ES 2.x series ended with version 2.0
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// For now, let everything else through
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_glfwInputError(GLFW_INVALID_VALUE,
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"Invalid OpenGL ES version %i.%i",
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ctxconfig->major, ctxconfig->minor);
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return GLFW_FALSE;
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}
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}
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if (ctxconfig->robustness)
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{
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if (ctxconfig->robustness != GLFW_NO_RESET_NOTIFICATION &&
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ctxconfig->robustness != GLFW_LOSE_CONTEXT_ON_RESET)
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{
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_glfwInputError(GLFW_INVALID_ENUM,
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"Invalid context robustness mode %i",
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ctxconfig->robustness);
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return GLFW_FALSE;
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}
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}
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if (ctxconfig->release)
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{
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if (ctxconfig->release != GLFW_RELEASE_BEHAVIOR_NONE &&
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ctxconfig->release != GLFW_RELEASE_BEHAVIOR_FLUSH)
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{
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_glfwInputError(GLFW_INVALID_ENUM,
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"Invalid context release behavior %i",
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ctxconfig->release);
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return GLFW_FALSE;
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}
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}
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return GLFW_TRUE;
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}
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const _GLFWfbconfig* _glfwChooseFBConfig(const _GLFWfbconfig* desired,
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const _GLFWfbconfig* alternatives,
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unsigned int count)
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{
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unsigned int i;
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unsigned int missing, leastMissing = UINT_MAX;
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unsigned int colorDiff, leastColorDiff = UINT_MAX;
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unsigned int extraDiff, leastExtraDiff = UINT_MAX;
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const _GLFWfbconfig* current;
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const _GLFWfbconfig* closest = NULL;
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for (i = 0; i < count; i++)
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{
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current = alternatives + i;
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if (desired->stereo > 0 && current->stereo == 0)
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{
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// Stereo is a hard constraint
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continue;
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}
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if (desired->doublebuffer != current->doublebuffer)
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{
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// Double buffering is a hard constraint
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continue;
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}
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// Count number of missing buffers
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{
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missing = 0;
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if (desired->alphaBits > 0 && current->alphaBits == 0)
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missing++;
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if (desired->depthBits > 0 && current->depthBits == 0)
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missing++;
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if (desired->stencilBits > 0 && current->stencilBits == 0)
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missing++;
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if (desired->auxBuffers > 0 &&
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current->auxBuffers < desired->auxBuffers)
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{
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missing += desired->auxBuffers - current->auxBuffers;
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}
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if (desired->samples > 0 && current->samples == 0)
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{
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// Technically, several multisampling buffers could be
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// involved, but that's a lower level implementation detail and
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// not important to us here, so we count them as one
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missing++;
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}
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}
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// These polynomials make many small channel size differences matter
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// less than one large channel size difference
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// Calculate color channel size difference value
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{
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colorDiff = 0;
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if (desired->redBits != GLFW_DONT_CARE)
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{
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colorDiff += (desired->redBits - current->redBits) *
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(desired->redBits - current->redBits);
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}
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if (desired->greenBits != GLFW_DONT_CARE)
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{
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colorDiff += (desired->greenBits - current->greenBits) *
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(desired->greenBits - current->greenBits);
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}
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if (desired->blueBits != GLFW_DONT_CARE)
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{
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colorDiff += (desired->blueBits - current->blueBits) *
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(desired->blueBits - current->blueBits);
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}
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}
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// Calculate non-color channel size difference value
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{
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extraDiff = 0;
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if (desired->alphaBits != GLFW_DONT_CARE)
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{
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extraDiff += (desired->alphaBits - current->alphaBits) *
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(desired->alphaBits - current->alphaBits);
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}
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if (desired->depthBits != GLFW_DONT_CARE)
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{
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extraDiff += (desired->depthBits - current->depthBits) *
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(desired->depthBits - current->depthBits);
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}
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if (desired->stencilBits != GLFW_DONT_CARE)
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{
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extraDiff += (desired->stencilBits - current->stencilBits) *
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(desired->stencilBits - current->stencilBits);
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}
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if (desired->accumRedBits != GLFW_DONT_CARE)
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{
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extraDiff += (desired->accumRedBits - current->accumRedBits) *
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(desired->accumRedBits - current->accumRedBits);
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}
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if (desired->accumGreenBits != GLFW_DONT_CARE)
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{
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extraDiff += (desired->accumGreenBits - current->accumGreenBits) *
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(desired->accumGreenBits - current->accumGreenBits);
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}
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if (desired->accumBlueBits != GLFW_DONT_CARE)
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{
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extraDiff += (desired->accumBlueBits - current->accumBlueBits) *
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(desired->accumBlueBits - current->accumBlueBits);
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}
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if (desired->accumAlphaBits != GLFW_DONT_CARE)
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{
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extraDiff += (desired->accumAlphaBits - current->accumAlphaBits) *
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(desired->accumAlphaBits - current->accumAlphaBits);
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}
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if (desired->samples != GLFW_DONT_CARE)
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{
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extraDiff += (desired->samples - current->samples) *
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(desired->samples - current->samples);
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}
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if (desired->sRGB && !current->sRGB)
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extraDiff++;
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}
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// Figure out if the current one is better than the best one found so far
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// Least number of missing buffers is the most important heuristic,
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// then color buffer size match and lastly size match for other buffers
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if (missing < leastMissing)
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closest = current;
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else if (missing == leastMissing)
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{
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if ((colorDiff < leastColorDiff) ||
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(colorDiff == leastColorDiff && extraDiff < leastExtraDiff))
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{
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closest = current;
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}
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}
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if (current == closest)
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{
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leastMissing = missing;
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leastColorDiff = colorDiff;
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leastExtraDiff = extraDiff;
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}
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}
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return closest;
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}
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GLFWbool _glfwRefreshContextAttribs(const _GLFWctxconfig* ctxconfig)
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{
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int i;
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_GLFWwindow* window;
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const char* version;
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const char* prefixes[] =
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{
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"OpenGL ES-CM ",
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"OpenGL ES-CL ",
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"OpenGL ES ",
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NULL
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};
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window = _glfwPlatformGetCurrentContext();
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window->context.source = ctxconfig->source;
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window->context.client = GLFW_OPENGL_API;
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window->context.GetIntegerv = (PFNGLGETINTEGERVPROC)
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window->context.getProcAddress("glGetIntegerv");
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window->context.GetString = (PFNGLGETSTRINGPROC)
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window->context.getProcAddress("glGetString");
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if (!window->context.GetIntegerv || !window->context.GetString)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR, "Entry point retrieval is broken");
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return GLFW_FALSE;
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}
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version = (const char*) window->context.GetString(GL_VERSION);
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if (!version)
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{
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if (ctxconfig->client == GLFW_OPENGL_API)
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{
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||||
_glfwInputError(GLFW_PLATFORM_ERROR,
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"OpenGL version string retrieval is broken");
|
||||
}
|
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else
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{
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||||
_glfwInputError(GLFW_PLATFORM_ERROR,
|
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"OpenGL ES version string retrieval is broken");
|
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}
|
||||
|
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return GLFW_FALSE;
|
||||
}
|
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for (i = 0; prefixes[i]; i++)
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{
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||||
const size_t length = strlen(prefixes[i]);
|
||||
|
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if (strncmp(version, prefixes[i], length) == 0)
|
||||
{
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||||
version += length;
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window->context.client = GLFW_OPENGL_ES_API;
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break;
|
||||
}
|
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}
|
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|
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if (!sscanf(version, "%d.%d.%d",
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&window->context.major,
|
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&window->context.minor,
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&window->context.revision))
|
||||
{
|
||||
if (window->context.client == GLFW_OPENGL_API)
|
||||
{
|
||||
_glfwInputError(GLFW_PLATFORM_ERROR,
|
||||
"No version found in OpenGL version string");
|
||||
}
|
||||
else
|
||||
{
|
||||
_glfwInputError(GLFW_PLATFORM_ERROR,
|
||||
"No version found in OpenGL ES version string");
|
||||
}
|
||||
|
||||
return GLFW_FALSE;
|
||||
}
|
||||
|
||||
if (window->context.major < ctxconfig->major ||
|
||||
(window->context.major == ctxconfig->major &&
|
||||
window->context.minor < ctxconfig->minor))
|
||||
{
|
||||
// The desired OpenGL version is greater than the actual version
|
||||
// This only happens if the machine lacks {GLX|WGL}_ARB_create_context
|
||||
// /and/ the user has requested an OpenGL version greater than 1.0
|
||||
|
||||
// For API consistency, we emulate the behavior of the
|
||||
// {GLX|WGL}_ARB_create_context extension and fail here
|
||||
|
||||
if (window->context.client == GLFW_OPENGL_API)
|
||||
{
|
||||
_glfwInputError(GLFW_VERSION_UNAVAILABLE,
|
||||
"Requested OpenGL version %i.%i, got version %i.%i",
|
||||
ctxconfig->major, ctxconfig->minor,
|
||||
window->context.major, window->context.minor);
|
||||
}
|
||||
else
|
||||
{
|
||||
_glfwInputError(GLFW_VERSION_UNAVAILABLE,
|
||||
"Requested OpenGL ES version %i.%i, got version %i.%i",
|
||||
ctxconfig->major, ctxconfig->minor,
|
||||
window->context.major, window->context.minor);
|
||||
}
|
||||
|
||||
return GLFW_FALSE;
|
||||
}
|
||||
|
||||
if (window->context.major >= 3)
|
||||
{
|
||||
// OpenGL 3.0+ uses a different function for extension string retrieval
|
||||
// We cache it here instead of in glfwExtensionSupported mostly to alert
|
||||
// users as early as possible that their build may be broken
|
||||
|
||||
window->context.GetStringi = (PFNGLGETSTRINGIPROC)
|
||||
window->context.getProcAddress("glGetStringi");
|
||||
if (!window->context.GetStringi)
|
||||
{
|
||||
_glfwInputError(GLFW_PLATFORM_ERROR,
|
||||
"Entry point retrieval is broken");
|
||||
return GLFW_FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
if (window->context.client == GLFW_OPENGL_API)
|
||||
{
|
||||
// Read back context flags (OpenGL 3.0 and above)
|
||||
if (window->context.major >= 3)
|
||||
{
|
||||
GLint flags;
|
||||
window->context.GetIntegerv(GL_CONTEXT_FLAGS, &flags);
|
||||
|
||||
if (flags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT)
|
||||
window->context.forward = GLFW_TRUE;
|
||||
|
||||
if (flags & GL_CONTEXT_FLAG_DEBUG_BIT)
|
||||
window->context.debug = GLFW_TRUE;
|
||||
else if (glfwExtensionSupported("GL_ARB_debug_output") &&
|
||||
ctxconfig->debug)
|
||||
{
|
||||
// HACK: This is a workaround for older drivers (pre KHR_debug)
|
||||
// not setting the debug bit in the context flags for
|
||||
// debug contexts
|
||||
window->context.debug = GLFW_TRUE;
|
||||
}
|
||||
|
||||
if (flags & GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR)
|
||||
window->context.noerror = GLFW_TRUE;
|
||||
}
|
||||
|
||||
// Read back OpenGL context profile (OpenGL 3.2 and above)
|
||||
if (window->context.major >= 4 ||
|
||||
(window->context.major == 3 && window->context.minor >= 2))
|
||||
{
|
||||
GLint mask;
|
||||
window->context.GetIntegerv(GL_CONTEXT_PROFILE_MASK, &mask);
|
||||
|
||||
if (mask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT)
|
||||
window->context.profile = GLFW_OPENGL_COMPAT_PROFILE;
|
||||
else if (mask & GL_CONTEXT_CORE_PROFILE_BIT)
|
||||
window->context.profile = GLFW_OPENGL_CORE_PROFILE;
|
||||
else if (glfwExtensionSupported("GL_ARB_compatibility"))
|
||||
{
|
||||
// HACK: This is a workaround for the compatibility profile bit
|
||||
// not being set in the context flags if an OpenGL 3.2+
|
||||
// context was created without having requested a specific
|
||||
// version
|
||||
window->context.profile = GLFW_OPENGL_COMPAT_PROFILE;
|
||||
}
|
||||
}
|
||||
|
||||
// Read back robustness strategy
|
||||
if (glfwExtensionSupported("GL_ARB_robustness"))
|
||||
{
|
||||
// NOTE: We avoid using the context flags for detection, as they are
|
||||
// only present from 3.0 while the extension applies from 1.1
|
||||
|
||||
GLint strategy;
|
||||
window->context.GetIntegerv(GL_RESET_NOTIFICATION_STRATEGY_ARB,
|
||||
&strategy);
|
||||
|
||||
if (strategy == GL_LOSE_CONTEXT_ON_RESET_ARB)
|
||||
window->context.robustness = GLFW_LOSE_CONTEXT_ON_RESET;
|
||||
else if (strategy == GL_NO_RESET_NOTIFICATION_ARB)
|
||||
window->context.robustness = GLFW_NO_RESET_NOTIFICATION;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// Read back robustness strategy
|
||||
if (glfwExtensionSupported("GL_EXT_robustness"))
|
||||
{
|
||||
// NOTE: The values of these constants match those of the OpenGL ARB
|
||||
// one, so we can reuse them here
|
||||
|
||||
GLint strategy;
|
||||
window->context.GetIntegerv(GL_RESET_NOTIFICATION_STRATEGY_ARB,
|
||||
&strategy);
|
||||
|
||||
if (strategy == GL_LOSE_CONTEXT_ON_RESET_ARB)
|
||||
window->context.robustness = GLFW_LOSE_CONTEXT_ON_RESET;
|
||||
else if (strategy == GL_NO_RESET_NOTIFICATION_ARB)
|
||||
window->context.robustness = GLFW_NO_RESET_NOTIFICATION;
|
||||
}
|
||||
}
|
||||
|
||||
if (glfwExtensionSupported("GL_KHR_context_flush_control"))
|
||||
{
|
||||
GLint behavior;
|
||||
window->context.GetIntegerv(GL_CONTEXT_RELEASE_BEHAVIOR, &behavior);
|
||||
|
||||
if (behavior == GL_NONE)
|
||||
window->context.release = GLFW_RELEASE_BEHAVIOR_NONE;
|
||||
else if (behavior == GL_CONTEXT_RELEASE_BEHAVIOR_FLUSH)
|
||||
window->context.release = GLFW_RELEASE_BEHAVIOR_FLUSH;
|
||||
}
|
||||
|
||||
// Clearing the front buffer to black to avoid garbage pixels left over from
|
||||
// previous uses of our bit of VRAM
|
||||
{
|
||||
PFNGLCLEARPROC glClear = (PFNGLCLEARPROC)
|
||||
window->context.getProcAddress("glClear");
|
||||
glClear(GL_COLOR_BUFFER_BIT);
|
||||
window->context.swapBuffers(window);
|
||||
}
|
||||
|
||||
return GLFW_TRUE;
|
||||
}
|
||||
|
||||
GLFWbool _glfwStringInExtensionString(const char* string, const char* extensions)
|
||||
{
|
||||
const char* start = extensions;
|
||||
|
||||
for (;;)
|
||||
{
|
||||
const char* where;
|
||||
const char* terminator;
|
||||
|
||||
where = strstr(start, string);
|
||||
if (!where)
|
||||
return GLFW_FALSE;
|
||||
|
||||
terminator = where + strlen(string);
|
||||
if (where == start || *(where - 1) == ' ')
|
||||
{
|
||||
if (*terminator == ' ' || *terminator == '\0')
|
||||
break;
|
||||
}
|
||||
|
||||
start = terminator;
|
||||
}
|
||||
|
||||
return GLFW_TRUE;
|
||||
}
|
||||
|
||||
|
||||
//////////////////////////////////////////////////////////////////////////
|
||||
////// GLFW public API //////
|
||||
//////////////////////////////////////////////////////////////////////////
|
||||
|
||||
GLFWAPI void glfwMakeContextCurrent(GLFWwindow* handle)
|
||||
{
|
||||
_GLFWwindow* window = (_GLFWwindow*) handle;
|
||||
_GLFWwindow* previous = _glfwPlatformGetCurrentContext();
|
||||
|
||||
_GLFW_REQUIRE_INIT();
|
||||
|
||||
if (window && window->context.client == GLFW_NO_API)
|
||||
{
|
||||
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
|
||||
return;
|
||||
}
|
||||
|
||||
if (previous)
|
||||
{
|
||||
if (!window || window->context.source != previous->context.source)
|
||||
previous->context.makeCurrent(NULL);
|
||||
}
|
||||
|
||||
if (window)
|
||||
window->context.makeCurrent(window);
|
||||
}
|
||||
|
||||
GLFWAPI GLFWwindow* glfwGetCurrentContext(void)
|
||||
{
|
||||
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
|
||||
return (GLFWwindow*) _glfwPlatformGetCurrentContext();
|
||||
}
|
||||
|
||||
GLFWAPI void glfwSwapBuffers(GLFWwindow* handle)
|
||||
{
|
||||
_GLFWwindow* window = (_GLFWwindow*) handle;
|
||||
assert(window != NULL);
|
||||
|
||||
_GLFW_REQUIRE_INIT();
|
||||
|
||||
if (window->context.client == GLFW_NO_API)
|
||||
{
|
||||
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
|
||||
return;
|
||||
}
|
||||
|
||||
window->context.swapBuffers(window);
|
||||
}
|
||||
|
||||
GLFWAPI void glfwSwapInterval(int interval)
|
||||
{
|
||||
_GLFWwindow* window;
|
||||
|
||||
_GLFW_REQUIRE_INIT();
|
||||
|
||||
window = _glfwPlatformGetCurrentContext();
|
||||
if (!window)
|
||||
{
|
||||
_glfwInputError(GLFW_NO_CURRENT_CONTEXT, NULL);
|
||||
return;
|
||||
}
|
||||
|
||||
window->context.swapInterval(interval);
|
||||
}
|
||||
|
||||
GLFWAPI int glfwExtensionSupported(const char* extension)
|
||||
{
|
||||
_GLFWwindow* window;
|
||||
|
||||
assert(extension != NULL);
|
||||
|
||||
_GLFW_REQUIRE_INIT_OR_RETURN(GLFW_FALSE);
|
||||
|
||||
window = _glfwPlatformGetCurrentContext();
|
||||
if (!window)
|
||||
{
|
||||
_glfwInputError(GLFW_NO_CURRENT_CONTEXT, NULL);
|
||||
return GLFW_FALSE;
|
||||
}
|
||||
|
||||
if (*extension == '\0')
|
||||
{
|
||||
_glfwInputError(GLFW_INVALID_VALUE, "Extension name is empty string");
|
||||
return GLFW_FALSE;
|
||||
}
|
||||
|
||||
if (window->context.major >= 3)
|
||||
{
|
||||
int i;
|
||||
GLint count;
|
||||
|
||||
// Check if extension is in the modern OpenGL extensions string list
|
||||
|
||||
window->context.GetIntegerv(GL_NUM_EXTENSIONS, &count);
|
||||
|
||||
for (i = 0; i < count; i++)
|
||||
{
|
||||
const char* en = (const char*)
|
||||
window->context.GetStringi(GL_EXTENSIONS, i);
|
||||
if (!en)
|
||||
{
|
||||
_glfwInputError(GLFW_PLATFORM_ERROR,
|
||||
"Extension string retrieval is broken");
|
||||
return GLFW_FALSE;
|
||||
}
|
||||
|
||||
if (strcmp(en, extension) == 0)
|
||||
return GLFW_TRUE;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
// Check if extension is in the old style OpenGL extensions string
|
||||
|
||||
const char* extensions = (const char*)
|
||||
window->context.GetString(GL_EXTENSIONS);
|
||||
if (!extensions)
|
||||
{
|
||||
_glfwInputError(GLFW_PLATFORM_ERROR,
|
||||
"Extension string retrieval is broken");
|
||||
return GLFW_FALSE;
|
||||
}
|
||||
|
||||
if (_glfwStringInExtensionString(extension, extensions))
|
||||
return GLFW_TRUE;
|
||||
}
|
||||
|
||||
// Check if extension is in the platform-specific string
|
||||
return window->context.extensionSupported(extension);
|
||||
}
|
||||
|
||||
GLFWAPI GLFWglproc glfwGetProcAddress(const char* procname)
|
||||
{
|
||||
_GLFWwindow* window;
|
||||
assert(procname != NULL);
|
||||
|
||||
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
|
||||
|
||||
window = _glfwPlatformGetCurrentContext();
|
||||
if (!window)
|
||||
{
|
||||
_glfwInputError(GLFW_NO_CURRENT_CONTEXT, NULL);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return window->context.getProcAddress(procname);
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user