ref: cf6a3d9a4822ba3207a599f3803c8e465348fbc6
dir: /external/SDL2/src/render/opengl/SDL_shaders_gl.h/
/*
Simple DirectMedia Layer
Copyright (C) 1997-2020 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.
*/
#ifndef SDL_shaders_gl_h_
#define SDL_shaders_gl_h_
#include "../../SDL_internal.h"
/* OpenGL shader implementation */
typedef enum {
SHADER_INVALID = -1,
SHADER_NONE,
SHADER_SOLID,
SHADER_RGB,
SHADER_RGBA,
SHADER_YUV_JPEG,
SHADER_YUV_BT601,
SHADER_YUV_BT709,
SHADER_NV12_JPEG,
SHADER_NV12_BT601,
SHADER_NV12_BT709,
SHADER_NV21_JPEG,
SHADER_NV21_BT601,
SHADER_NV21_BT709,
NUM_SHADERS
} GL_Shader;
typedef struct GL_ShaderContext GL_ShaderContext;
extern GL_ShaderContext * GL_CreateShaderContext(void);
extern void GL_SelectShader(GL_ShaderContext *ctx, GL_Shader shader);
extern void GL_DestroyShaderContext(GL_ShaderContext *ctx);
#endif /* SDL_shaders_gl_h_ */
/* vi: set ts=4 sw=4 expandtab: */