mirror of
https://github.com/glfw/glfw.git
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5470fd6de9
This extensions allows GLFW to instruct the driver to ignore the alpha
bits, even in formats which contain them. This makes it possible to use
the alpha bits as extra storage, without it affecting the end result
getting displayed to the user.
Fixes #1434
Fixes #1803
(cherry picked from commit 6281f498c8)
218 lines
8.4 KiB
C
218 lines
8.4 KiB
C
//========================================================================
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// GLFW 3.3 EGL - www.glfw.org
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2017 Camilla Löwy <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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#if defined(_GLFW_USE_EGLPLATFORM_H)
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#include <EGL/eglplatform.h>
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#elif defined(_GLFW_WIN32)
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#define EGLAPIENTRY __stdcall
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typedef HDC EGLNativeDisplayType;
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typedef HWND EGLNativeWindowType;
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#elif defined(_GLFW_COCOA)
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#define EGLAPIENTRY
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typedef void* EGLNativeDisplayType;
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typedef id EGLNativeWindowType;
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#elif defined(_GLFW_X11)
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#define EGLAPIENTRY
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typedef Display* EGLNativeDisplayType;
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typedef Window EGLNativeWindowType;
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#elif defined(_GLFW_WAYLAND)
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#define EGLAPIENTRY
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typedef struct wl_display* EGLNativeDisplayType;
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typedef struct wl_egl_window* EGLNativeWindowType;
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#else
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#error "No supported EGL platform selected"
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#endif
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#define EGL_SUCCESS 0x3000
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#define EGL_NOT_INITIALIZED 0x3001
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#define EGL_BAD_ACCESS 0x3002
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#define EGL_BAD_ALLOC 0x3003
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#define EGL_BAD_ATTRIBUTE 0x3004
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#define EGL_BAD_CONFIG 0x3005
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#define EGL_BAD_CONTEXT 0x3006
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#define EGL_BAD_CURRENT_SURFACE 0x3007
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#define EGL_BAD_DISPLAY 0x3008
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#define EGL_BAD_MATCH 0x3009
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#define EGL_BAD_NATIVE_PIXMAP 0x300a
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#define EGL_BAD_NATIVE_WINDOW 0x300b
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#define EGL_BAD_PARAMETER 0x300c
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#define EGL_BAD_SURFACE 0x300d
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#define EGL_CONTEXT_LOST 0x300e
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#define EGL_COLOR_BUFFER_TYPE 0x303f
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#define EGL_RGB_BUFFER 0x308e
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#define EGL_SURFACE_TYPE 0x3033
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#define EGL_WINDOW_BIT 0x0004
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#define EGL_RENDERABLE_TYPE 0x3040
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#define EGL_OPENGL_ES_BIT 0x0001
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#define EGL_OPENGL_ES2_BIT 0x0004
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#define EGL_OPENGL_BIT 0x0008
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#define EGL_ALPHA_SIZE 0x3021
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#define EGL_BLUE_SIZE 0x3022
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#define EGL_GREEN_SIZE 0x3023
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#define EGL_RED_SIZE 0x3024
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#define EGL_DEPTH_SIZE 0x3025
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#define EGL_STENCIL_SIZE 0x3026
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#define EGL_SAMPLES 0x3031
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#define EGL_OPENGL_ES_API 0x30a0
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#define EGL_OPENGL_API 0x30a2
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#define EGL_NONE 0x3038
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#define EGL_RENDER_BUFFER 0x3086
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#define EGL_SINGLE_BUFFER 0x3085
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#define EGL_EXTENSIONS 0x3055
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#define EGL_CONTEXT_CLIENT_VERSION 0x3098
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#define EGL_NATIVE_VISUAL_ID 0x302e
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#define EGL_NO_SURFACE ((EGLSurface) 0)
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#define EGL_NO_DISPLAY ((EGLDisplay) 0)
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#define EGL_NO_CONTEXT ((EGLContext) 0)
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#define EGL_DEFAULT_DISPLAY ((EGLNativeDisplayType) 0)
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#define EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR 0x00000002
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#define EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR 0x00000001
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#define EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR 0x00000002
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#define EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR 0x00000001
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#define EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR 0x31bd
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#define EGL_NO_RESET_NOTIFICATION_KHR 0x31be
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#define EGL_LOSE_CONTEXT_ON_RESET_KHR 0x31bf
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#define EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR 0x00000004
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#define EGL_CONTEXT_MAJOR_VERSION_KHR 0x3098
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#define EGL_CONTEXT_MINOR_VERSION_KHR 0x30fb
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#define EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR 0x30fd
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#define EGL_CONTEXT_FLAGS_KHR 0x30fc
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#define EGL_CONTEXT_OPENGL_NO_ERROR_KHR 0x31b3
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#define EGL_GL_COLORSPACE_KHR 0x309d
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#define EGL_GL_COLORSPACE_SRGB_KHR 0x3089
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#define EGL_CONTEXT_RELEASE_BEHAVIOR_KHR 0x2097
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#define EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR 0
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#define EGL_CONTEXT_RELEASE_BEHAVIOR_FLUSH_KHR 0x2098
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#define EGL_PRESENT_OPAQUE_EXT 0x31df
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typedef int EGLint;
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typedef unsigned int EGLBoolean;
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typedef unsigned int EGLenum;
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typedef void* EGLConfig;
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typedef void* EGLContext;
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typedef void* EGLDisplay;
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typedef void* EGLSurface;
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// EGL function pointer typedefs
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglGetConfigAttrib)(EGLDisplay,EGLConfig,EGLint,EGLint*);
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglGetConfigs)(EGLDisplay,EGLConfig*,EGLint,EGLint*);
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typedef EGLDisplay (EGLAPIENTRY * PFN_eglGetDisplay)(EGLNativeDisplayType);
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typedef EGLint (EGLAPIENTRY * PFN_eglGetError)(void);
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglInitialize)(EGLDisplay,EGLint*,EGLint*);
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglTerminate)(EGLDisplay);
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglBindAPI)(EGLenum);
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typedef EGLContext (EGLAPIENTRY * PFN_eglCreateContext)(EGLDisplay,EGLConfig,EGLContext,const EGLint*);
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglDestroySurface)(EGLDisplay,EGLSurface);
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglDestroyContext)(EGLDisplay,EGLContext);
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typedef EGLSurface (EGLAPIENTRY * PFN_eglCreateWindowSurface)(EGLDisplay,EGLConfig,EGLNativeWindowType,const EGLint*);
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglMakeCurrent)(EGLDisplay,EGLSurface,EGLSurface,EGLContext);
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglSwapBuffers)(EGLDisplay,EGLSurface);
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typedef EGLBoolean (EGLAPIENTRY * PFN_eglSwapInterval)(EGLDisplay,EGLint);
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typedef const char* (EGLAPIENTRY * PFN_eglQueryString)(EGLDisplay,EGLint);
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typedef GLFWglproc (EGLAPIENTRY * PFN_eglGetProcAddress)(const char*);
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#define eglGetConfigAttrib _glfw.egl.GetConfigAttrib
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#define eglGetConfigs _glfw.egl.GetConfigs
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#define eglGetDisplay _glfw.egl.GetDisplay
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#define eglGetError _glfw.egl.GetError
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#define eglInitialize _glfw.egl.Initialize
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#define eglTerminate _glfw.egl.Terminate
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#define eglBindAPI _glfw.egl.BindAPI
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#define eglCreateContext _glfw.egl.CreateContext
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#define eglDestroySurface _glfw.egl.DestroySurface
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#define eglDestroyContext _glfw.egl.DestroyContext
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#define eglCreateWindowSurface _glfw.egl.CreateWindowSurface
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#define eglMakeCurrent _glfw.egl.MakeCurrent
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#define eglSwapBuffers _glfw.egl.SwapBuffers
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#define eglSwapInterval _glfw.egl.SwapInterval
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#define eglQueryString _glfw.egl.QueryString
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#define eglGetProcAddress _glfw.egl.GetProcAddress
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#define _GLFW_EGL_CONTEXT_STATE _GLFWcontextEGL egl
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#define _GLFW_EGL_LIBRARY_CONTEXT_STATE _GLFWlibraryEGL egl
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// EGL-specific per-context data
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//
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typedef struct _GLFWcontextEGL
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{
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EGLConfig config;
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EGLContext handle;
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EGLSurface surface;
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void* client;
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} _GLFWcontextEGL;
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// EGL-specific global data
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//
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typedef struct _GLFWlibraryEGL
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{
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EGLDisplay display;
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EGLint major, minor;
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GLFWbool prefix;
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GLFWbool KHR_create_context;
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GLFWbool KHR_create_context_no_error;
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GLFWbool KHR_gl_colorspace;
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GLFWbool KHR_get_all_proc_addresses;
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GLFWbool KHR_context_flush_control;
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GLFWbool EXT_present_opaque;
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void* handle;
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PFN_eglGetConfigAttrib GetConfigAttrib;
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PFN_eglGetConfigs GetConfigs;
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PFN_eglGetDisplay GetDisplay;
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PFN_eglGetError GetError;
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PFN_eglInitialize Initialize;
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PFN_eglTerminate Terminate;
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PFN_eglBindAPI BindAPI;
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PFN_eglCreateContext CreateContext;
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PFN_eglDestroySurface DestroySurface;
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PFN_eglDestroyContext DestroyContext;
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PFN_eglCreateWindowSurface CreateWindowSurface;
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PFN_eglMakeCurrent MakeCurrent;
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PFN_eglSwapBuffers SwapBuffers;
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PFN_eglSwapInterval SwapInterval;
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PFN_eglQueryString QueryString;
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PFN_eglGetProcAddress GetProcAddress;
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} _GLFWlibraryEGL;
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GLFWbool _glfwInitEGL(void);
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void _glfwTerminateEGL(void);
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GLFWbool _glfwCreateContextEGL(_GLFWwindow* window,
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const _GLFWctxconfig* ctxconfig,
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const _GLFWfbconfig* fbconfig);
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#if defined(_GLFW_X11)
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GLFWbool _glfwChooseVisualEGL(const _GLFWwndconfig* wndconfig,
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const _GLFWctxconfig* ctxconfig,
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const _GLFWfbconfig* fbconfig,
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Visual** visual, int* depth);
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#endif /*_GLFW_X11*/
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