src/render/opengles2/SDL_shaders_gles2.h
author Ryan C. Gordon <icculus@icculus.org>
Mon, 17 Feb 2020 16:15:04 -0500
changeset 13536 4ba421b1e88f
parent 13422 fd6a12de91c7
permissions -rw-r--r--
opengl: Backed out hg changeset 0c915d307499

This is the OpenGL line drawing fix for Bugzilla #3182, but there's some
disagreement about what the renderers should do here, so I'm backing this out
until after 2.0.12 ships, and then we'll reevaluate all the renderer backends
to decide what's correct, and make them all work the same.
     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: */