early-access version 1611

externals/SDL/src/render/opengles2/SDL_shaders_gles2.h

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+/*
+  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.
+*/
+#include "../../SDL_internal.h"
+
+#ifndef SDL_shaders_gles2_h_
+#define SDL_shaders_gles2_h_
+
+#if SDL_VIDEO_RENDER_OGL_ES2
+
+typedef struct GLES2_ShaderInstance
+{
+    GLenum type;
+    GLenum format;
+    int length;
+    const void *data;
+} GLES2_ShaderInstance;
+
+typedef struct GLES2_Shader
+{
+    int instance_count;
+    const GLES2_ShaderInstance *instances[4];
+} GLES2_Shader;
+
+typedef enum
+{
+    GLES2_SHADER_VERTEX_DEFAULT,
+    GLES2_SHADER_FRAGMENT_SOLID_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_ABGR_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_ARGB_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_BGR_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_RGB_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_YUV_JPEG_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT601_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT709_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV12_JPEG_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV12_BT601_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV12_BT709_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV21_JPEG_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT601_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT709_SRC,
+    GLES2_SHADER_FRAGMENT_TEXTURE_EXTERNAL_OES_SRC
+} GLES2_ShaderType;
+
+#define GLES2_SOURCE_SHADER (GLenum)-1
+
+const GLES2_Shader *GLES2_GetShader(GLES2_ShaderType type);
+
+#endif /* SDL_VIDEO_RENDER_OGL_ES2 */
+
+#endif /* SDL_shaders_gles2_h_ */
+
+/* vi: set ts=4 sw=4 expandtab: */