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libepoxy/include/epoxy/gl.h

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Add the generator and build infrastructure. Not actually working yet, but it's a snapshot to start from.
11 years ago
/*
* Copyright © 2013 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
/** @file gl.h
*
Update header comments about how the implementation works.
11 years ago
* Provides an implementation of a GL dispatch layer using either
* global function pointers or a hidden vtable.
Add the generator and build infrastructure. Not actually working yet, but it's a snapshot to start from.
11 years ago
*/
Avoid polluting the compiler's namespace with our own stuff. We can't completely avoid it, since gl's headers use these defines for their header guards, and we really do need to stop the system GL headers from doing anything. Fixes #14
11 years ago
#ifndef EPOXY_GL_H
#define EPOXY_GL_H
Add the generator and build infrastructure. Not actually working yet, but it's a snapshot to start from.
11 years ago
Revert all changes since 8bbc0d40 Most of the changes that happened after commit 8bbc0d40 broke epoxy pretty much irreparably because of the CMake build and the attempt at making libepoxy a static library that can be copy-pasted into another project without generating files. Since all the commits are entangled, and are full of unrelated changes, we cannot simply do a localized set of reverts; instead, we need to hit the reset button. From this point forward, we're going to improve libepoxy's build while attempting to keep the existing build system working. This may mean reinstating the CMake build system at a later date.
8 years ago
#ifdef __cplusplus
extern "C" {
Add C++ guards.
11 years ago
#endif
Revert all changes since 8bbc0d40 Most of the changes that happened after commit 8bbc0d40 broke epoxy pretty much irreparably because of the CMake build and the attempt at making libepoxy a static library that can be copy-pasted into another project without generating files. Since all the commits are entangled, and are full of unrelated changes, we cannot simply do a localized set of reverts; instead, we need to hit the reset button. From this point forward, we're going to improve libepoxy's build while attempting to keep the existing build system working. This may mean reinstating the CMake build system at a later date.
8 years ago
#include <stdbool.h>
#if defined(__gl_h_) || defined(__glext_h_)
#error epoxy/gl.h must be included before (or in place of) GL/gl.h
#else
Add the generator and build infrastructure. Not actually working yet, but it's a snapshot to start from.
11 years ago
#define __gl_h_
#define __glext_h_
#endif
Revert all changes since 8bbc0d40 Most of the changes that happened after commit 8bbc0d40 broke epoxy pretty much irreparably because of the CMake build and the attempt at making libepoxy a static library that can be copy-pasted into another project without generating files. Since all the commits are entangled, and are full of unrelated changes, we cannot simply do a localized set of reverts; instead, we need to hit the reset button. From this point forward, we're going to improve libepoxy's build while attempting to keep the existing build system working. This may mean reinstating the CMake build system at a later date.
8 years ago
#define KHRONOS_SUPPORT_INT64 1
#define KHRONOS_SUPPORT_FLOAT 1
#define KHRONOS_APIATTRIBUTES
#ifndef _WIN32
/* APIENTRY and GLAPIENTRY are not used on Linux or Mac. */
#define APIENTRY
#define GLAPIENTRY
#define EPOXY_IMPORTEXPORT
#define EPOXY_CALLSPEC
#define GLAPI
#define KHRONOS_APIENTRY
#define KHRONOS_APICALL
#else
#ifndef APIENTRY
#define APIENTRY __stdcall
Add some more gl.h definitions that might be used by applications. These in particular get used by software that was doing GetProcAddress, and we want to be able to just drop in our gl.h instead.
11 years ago
#endif
#ifndef GLAPIENTRY
Revert all changes since 8bbc0d40 Most of the changes that happened after commit 8bbc0d40 broke epoxy pretty much irreparably because of the CMake build and the attempt at making libepoxy a static library that can be copy-pasted into another project without generating files. Since all the commits are entangled, and are full of unrelated changes, we cannot simply do a localized set of reverts; instead, we need to hit the reset button. From this point forward, we're going to improve libepoxy's build while attempting to keep the existing build system working. This may mean reinstating the CMake build system at a later date.
8 years ago
#define GLAPIENTRY APIENTRY
Add some more gl.h definitions that might be used by applications. These in particular get used by software that was doing GetProcAddress, and we want to be able to just drop in our gl.h instead.
11 years ago
#endif
Revert all changes since 8bbc0d40 Most of the changes that happened after commit 8bbc0d40 broke epoxy pretty much irreparably because of the CMake build and the attempt at making libepoxy a static library that can be copy-pasted into another project without generating files. Since all the commits are entangled, and are full of unrelated changes, we cannot simply do a localized set of reverts; instead, we need to hit the reset button. From this point forward, we're going to improve libepoxy's build while attempting to keep the existing build system working. This may mean reinstating the CMake build system at a later date.
8 years ago
#ifndef EPOXY_CALLSPEC
#define EPOXY_CALLSPEC __stdcall
#endif
#ifndef EPOXY_IMPORTEXPORT
#define EPOXY_IMPORTEXPORT __declspec(dllimport)
Add some more gl.h definitions that might be used by applications. These in particular get used by software that was doing GetProcAddress, and we want to be able to just drop in our gl.h instead.
11 years ago
#endif
Add limited support for the KHRONOS_* defines from khrplatform.h. The only way these get used is when you choose to include epoxy/gl.h but EGL/egl.h. I'm not sure that's something I want to actually support, but piglit happened to do so, and this gets things working. There's not as much support here as in real khrplatform.h, but then there's no EGL for windows. And seriously, compilers support 64-bit and float types, why would you even build this complexity?
11 years ago
Revert all changes since 8bbc0d40 Most of the changes that happened after commit 8bbc0d40 broke epoxy pretty much irreparably because of the CMake build and the attempt at making libepoxy a static library that can be copy-pasted into another project without generating files. Since all the commits are entangled, and are full of unrelated changes, we cannot simply do a localized set of reverts; instead, we need to hit the reset button. From this point forward, we're going to improve libepoxy's build while attempting to keep the existing build system working. This may mean reinstating the CMake build system at a later date.
8 years ago
#ifndef GLAPI
#define GLAPI extern
#endif
#define KHRONOS_APIENTRY __stdcall
#define KHRONOS_APICALL __declspec(dllimport) __stdcall
#endif /* _WIN32 */
Add some more defines that are present in normal gl.h
11 years ago
#ifndef APIENTRYP
#define APIENTRYP APIENTRY *
#endif
#ifndef GLAPIENTRYP
#define GLAPIENTRYP GLAPIENTRY *
#endif
Add the generator and build infrastructure. Not actually working yet, but it's a snapshot to start from.
11 years ago
#include "epoxy/gl_generated.h"
Fix public headers for building in Visual Studio Ensure that we also have import/export decorations for the prototypes, as Visual Studio does not like such decorations on the function definitions without the prototypes decorated as well, when the function prototypes exist.
10 years ago
EPOXY_IMPORTEXPORT bool epoxy_has_gl_extension(const char *extension);
EPOXY_IMPORTEXPORT bool epoxy_is_desktop_gl(void);
EPOXY_IMPORTEXPORT int epoxy_gl_version(void);
Drop the installed _common.h headers. I was thinking at one point that part of the build was going to require not including the #defines from the generated code, but would want these prototypes. It turns out that's not the case (and if it is, I'll just wrap the #defines in an ifdef).
11 years ago
Add C++ guards.
11 years ago
#ifdef __cplusplus
} /* extern "C" */
#endif
Avoid polluting the compiler's namespace with our own stuff. We can't completely avoid it, since gl's headers use these defines for their header guards, and we really do need to stop the system GL headers from doing anything. Fixes #14
11 years ago
#endif /* EPOXY_GL_H */