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SDL_shaders_gles2.h (2300B)

      1 /*
      2   Simple DirectMedia Layer
      3   Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
      4 
      5   This software is provided 'as-is', without any express or implied
      6   warranty.  In no event will the authors be held liable for any damages
      7   arising from the use of this software.
      8 
      9   Permission is granted to anyone to use this software for any purpose,
     10   including commercial applications, and to alter it and redistribute it
     11   freely, subject to the following restrictions:
     12 
     13   1. The origin of this software must not be misrepresented; you must not
     14      claim that you wrote the original software. If you use this software
     15      in a product, an acknowledgment in the product documentation would be
     16      appreciated but is not required.
     17   2. Altered source versions must be plainly marked as such, and must not be
     18      misrepresented as being the original software.
     19   3. This notice may not be removed or altered from any source distribution.
     20 */
     21 #include "../../SDL_internal.h"
     22 
     23 #ifndef SDL_shaders_gles2_h_
     24 #define SDL_shaders_gles2_h_
     25 
     26 #if SDL_VIDEO_RENDER_OGL_ES2
     27 
     28 typedef struct GLES2_ShaderInstance
     29 {
     30     GLenum type;
     31     GLenum format;
     32     int length;
     33     const void *data;
     34 } GLES2_ShaderInstance;
     35 
     36 typedef struct GLES2_Shader
     37 {
     38     int instance_count;
     39     const GLES2_ShaderInstance *instances[4];
     40 } GLES2_Shader;
     41 
     42 typedef enum
     43 {
     44     GLES2_SHADER_VERTEX_DEFAULT,
     45     GLES2_SHADER_FRAGMENT_SOLID_SRC,
     46     GLES2_SHADER_FRAGMENT_TEXTURE_ABGR_SRC,
     47     GLES2_SHADER_FRAGMENT_TEXTURE_ARGB_SRC,
     48     GLES2_SHADER_FRAGMENT_TEXTURE_BGR_SRC,
     49     GLES2_SHADER_FRAGMENT_TEXTURE_RGB_SRC,
     50     GLES2_SHADER_FRAGMENT_TEXTURE_YUV_JPEG_SRC,
     51     GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT601_SRC,
     52     GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT709_SRC,
     53     GLES2_SHADER_FRAGMENT_TEXTURE_NV12_JPEG_SRC,
     54     GLES2_SHADER_FRAGMENT_TEXTURE_NV12_BT601_SRC,
     55     GLES2_SHADER_FRAGMENT_TEXTURE_NV12_BT709_SRC,
     56     GLES2_SHADER_FRAGMENT_TEXTURE_NV21_JPEG_SRC,
     57     GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT601_SRC,
     58     GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT709_SRC,
     59     GLES2_SHADER_FRAGMENT_TEXTURE_EXTERNAL_OES_SRC
     60 } GLES2_ShaderType;
     61 
     62 #define GLES2_SOURCE_SHADER (GLenum)-1
     63 
     64 const GLES2_Shader *GLES2_GetShader(GLES2_ShaderType type);
     65 
     66 #endif /* SDL_VIDEO_RENDER_OGL_ES2 */
     67 
     68 #endif /* SDL_shaders_gles2_h_ */
     69 
     70 /* vi: set ts=4 sw=4 expandtab: */