SDL/src/video/winrt/SDL_winrtegl.h
David Ludwig 749117acd9 WinRT: added experimental OpenGL ES 2.0 support
A port of the ANGLE library (OpenGL ES 2.0 for Direct3D) to WinRT, via https://github.com/stammen/angleproject, is used as a base.

To enable, clone 'angleproject' into the directory one above where SDL/WinRT is, open the file SDL/include/SDL_config_winrt.h, and uncomment the #defines that begin with 'SDL_VIDEO_OPENGL'.  From there, apps can create an OpenGL capable SDL_Window via the flag, SDL_WINDOW_OPENGL, and an OpenGL ES 2 context via SDL_GL_CreateContext.  The Direct3D 11.1 renderer cannot be used alongside SDL_WINDOW_OPENGL.  Only Windows 8/8.1 is supported for now.  Shaders may need to be precompiled, in some (all?) cases.
2013-11-04 19:54:29 -05:00

167 lines
6.2 KiB
C

/*
Simple DirectMedia Layer
Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.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.
*/
#include "SDL_config.h"
#ifndef _SDL_winrtegl_h
#define _SDL_winrtegl_h
#include "SDL_hints.h"
#include "SDL_loadso.h"
#if SDL_VIDEO_DRIVER_WINRT && SDL_VIDEO_OPENGL_EGL
/* Emulate various *nix functions that SDL_egl.c will call.
*/
#define dlsym SDL_LoadFunction
#define dlclose SDL_UnloadObject
#define dlopen(path, mode) ((path == NULL) ? NULL : SDL_LoadObject(path)) /* TODO, WinRT: create a separate function here, that sets dlerror on empty params */
#define dlerror SDL_GetError
#define getenv SDL_GetHint
#define RTLD_LAZY 0
/*
** Copyright (c) 2007-2009 The Khronos Group Inc.
**
** Permission is hereby granted, free of charge, to any person obtaining a
** copy of this software and/or associated documentation files (the
** "Materials"), to deal in the Materials without restriction, including
** without limitation the rights to use, copy, modify, merge, publish,
** distribute, sublicense, and/or sell copies of the Materials, and to
** permit persons to whom the Materials are furnished to do so, subject to
** the following conditions:
**
** The above copyright notice and this permission notice shall be included
** in all copies or substantial portions of the Materials.
**
** THE MATERIALS ARE 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
** MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
*/
/* EGL Types */
/* EGLint is defined in eglplatform.h */
typedef unsigned int EGLBoolean;
typedef unsigned int EGLenum;
typedef void *EGLConfig;
typedef void *EGLContext;
typedef void *EGLDisplay;
typedef void *EGLSurface;
typedef void *EGLClientBuffer;
/* Platform-specific types */
//typedef int EGLNativeDisplayType;
typedef int NativeDisplayType;
typedef void * NativeWindowType;
#ifndef EGLAPIENTRY
#define EGLAPIENTRY __stdcall
#endif
/* Define EGLint. This must be a signed integral type large enough to contain
* all legal attribute names and values passed into and out of EGL, whether
* their type is boolean, bitmask, enumerant (symbolic constant), integer,
* handle, or other. While in general a 32-bit integer will suffice, if
* handles are 64 bit types, then EGLint should be defined as a signed 64-bit
* integer type.
*/
typedef int EGLint;
/* EGL Enumerants. Bitmasks and other exceptional cases aside, most
* enums are assigned unique values starting at 0x3000.
*/
/* EGL aliases */
#define EGL_FALSE 0
#define EGL_TRUE 1
/* Out-of-band handle values */
#define EGL_DEFAULT_DISPLAY ((EGLNativeDisplayType)0)
#define EGL_NO_CONTEXT ((EGLContext)0)
#define EGL_NO_DISPLAY ((EGLDisplay)0)
#define EGL_NO_SURFACE ((EGLSurface)0)
/* Config attributes */
#define EGL_BUFFER_SIZE 0x3020
#define EGL_ALPHA_SIZE 0x3021
#define EGL_BLUE_SIZE 0x3022
#define EGL_GREEN_SIZE 0x3023
#define EGL_RED_SIZE 0x3024
#define EGL_DEPTH_SIZE 0x3025
#define EGL_STENCIL_SIZE 0x3026
#define EGL_CONFIG_CAVEAT 0x3027
#define EGL_CONFIG_ID 0x3028
#define EGL_LEVEL 0x3029
#define EGL_MAX_PBUFFER_HEIGHT 0x302A
#define EGL_MAX_PBUFFER_PIXELS 0x302B
#define EGL_MAX_PBUFFER_WIDTH 0x302C
#define EGL_NATIVE_RENDERABLE 0x302D
#define EGL_NATIVE_VISUAL_ID 0x302E
#define EGL_NATIVE_VISUAL_TYPE 0x302F
#define EGL_SAMPLES 0x3031
#define EGL_SAMPLE_BUFFERS 0x3032
#define EGL_SURFACE_TYPE 0x3033
#define EGL_TRANSPARENT_TYPE 0x3034
#define EGL_TRANSPARENT_BLUE_VALUE 0x3035
#define EGL_TRANSPARENT_GREEN_VALUE 0x3036
#define EGL_TRANSPARENT_RED_VALUE 0x3037
#define EGL_NONE 0x3038 /* Attrib list terminator */
#define EGL_BIND_TO_TEXTURE_RGB 0x3039
#define EGL_BIND_TO_TEXTURE_RGBA 0x303A
#define EGL_MIN_SWAP_INTERVAL 0x303B
#define EGL_MAX_SWAP_INTERVAL 0x303C
#define EGL_LUMINANCE_SIZE 0x303D
#define EGL_ALPHA_MASK_SIZE 0x303E
#define EGL_COLOR_BUFFER_TYPE 0x303F
#define EGL_RENDERABLE_TYPE 0x3040
#define EGL_MATCH_NATIVE_PIXMAP 0x3041 /* Pseudo-attribute (not queryable) */
#define EGL_CONFORMANT 0x3042
/* Config attribute mask bits */
#define EGL_PBUFFER_BIT 0x0001 /* EGL_SURFACE_TYPE mask bits */
#define EGL_PIXMAP_BIT 0x0002 /* EGL_SURFACE_TYPE mask bits */
#define EGL_WINDOW_BIT 0x0004 /* EGL_SURFACE_TYPE mask bits */
#define EGL_VG_COLORSPACE_LINEAR_BIT 0x0020 /* EGL_SURFACE_TYPE mask bits */
#define EGL_VG_ALPHA_FORMAT_PRE_BIT 0x0040 /* EGL_SURFACE_TYPE mask bits */
#define EGL_MULTISAMPLE_RESOLVE_BOX_BIT 0x0200 /* EGL_SURFACE_TYPE mask bits */
#define EGL_SWAP_BEHAVIOR_PRESERVED_BIT 0x0400 /* EGL_SURFACE_TYPE mask bits */
#define EGL_OPENGL_ES_BIT 0x0001 /* EGL_RENDERABLE_TYPE mask bits */
#define EGL_OPENVG_BIT 0x0002 /* EGL_RENDERABLE_TYPE mask bits */
#define EGL_OPENGL_ES2_BIT 0x0004 /* EGL_RENDERABLE_TYPE mask bits */
#define EGL_OPENGL_BIT 0x0008 /* EGL_RENDERABLE_TYPE mask bits */
/* CreateContext attributes */
#define EGL_CONTEXT_CLIENT_VERSION 0x3098
#endif /* SDL_VIDEO_DRIVER_WINRT && SDL_VIDEO_OPENGL_EGL */
#endif /* _SDL_winrtegl_h */
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