diff options
Diffstat (limited to 'Source/3rdParty/SDL2/src/render/opengles2/SDL_shaders_gles2.c')
| -rw-r--r-- | Source/3rdParty/SDL2/src/render/opengles2/SDL_shaders_gles2.c | 573 |
1 files changed, 0 insertions, 573 deletions
diff --git a/Source/3rdParty/SDL2/src/render/opengles2/SDL_shaders_gles2.c b/Source/3rdParty/SDL2/src/render/opengles2/SDL_shaders_gles2.c deleted file mode 100644 index f428a49..0000000 --- a/Source/3rdParty/SDL2/src/render/opengles2/SDL_shaders_gles2.c +++ /dev/null @@ -1,573 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2018 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" - -#if SDL_VIDEO_RENDER_OGL_ES2 && !SDL_RENDER_DISABLED - -#include "SDL_video.h" -#include "SDL_opengles2.h" -#include "SDL_shaders_gles2.h" -#include "SDL_stdinc.h" - -/************************************************************************************************* - * Vertex/fragment shader source * - *************************************************************************************************/ -/* Notes on a_angle: - * It is a vector containing sin and cos for rotation matrix - * To get correct rotation for most cases when a_angle is disabled cos - value is decremented by 1.0 to get proper output with 0.0 which is - default value -*/ -static const Uint8 GLES2_VertexSrc_Default_[] = " \ - uniform mat4 u_projection; \ - attribute vec2 a_position; \ - attribute vec2 a_texCoord; \ - attribute vec2 a_angle; \ - attribute vec2 a_center; \ - varying vec2 v_texCoord; \ - \ - void main() \ - { \ - float s = a_angle[0]; \ - float c = a_angle[1] + 1.0; \ - mat2 rotationMatrix = mat2(c, -s, s, c); \ - vec2 position = rotationMatrix * (a_position - a_center) + a_center; \ - v_texCoord = a_texCoord; \ - gl_Position = u_projection * vec4(position, 0.0, 1.0);\ - gl_PointSize = 1.0; \ - } \ -"; - -static const Uint8 GLES2_FragmentSrc_SolidSrc_[] = " \ - precision mediump float; \ - uniform vec4 u_color; \ - \ - void main() \ - { \ - gl_FragColor = u_color; \ - } \ -"; - -static const Uint8 GLES2_FragmentSrc_TextureABGRSrc_[] = " \ - precision mediump float; \ - uniform sampler2D u_texture; \ - uniform vec4 u_modulation; \ - varying vec2 v_texCoord; \ - \ - void main() \ - { \ - gl_FragColor = texture2D(u_texture, v_texCoord); \ - gl_FragColor *= u_modulation; \ - } \ -"; - -/* ARGB to ABGR conversion */ -static const Uint8 GLES2_FragmentSrc_TextureARGBSrc_[] = " \ - precision mediump float; \ - uniform sampler2D u_texture; \ - uniform vec4 u_modulation; \ - varying vec2 v_texCoord; \ - \ - void main() \ - { \ - vec4 abgr = texture2D(u_texture, v_texCoord); \ - gl_FragColor = abgr; \ - gl_FragColor.r = abgr.b; \ - gl_FragColor.b = abgr.r; \ - gl_FragColor *= u_modulation; \ - } \ -"; - -/* RGB to ABGR conversion */ -static const Uint8 GLES2_FragmentSrc_TextureRGBSrc_[] = " \ - precision mediump float; \ - uniform sampler2D u_texture; \ - uniform vec4 u_modulation; \ - varying vec2 v_texCoord; \ - \ - void main() \ - { \ - vec4 abgr = texture2D(u_texture, v_texCoord); \ - gl_FragColor = abgr; \ - gl_FragColor.r = abgr.b; \ - gl_FragColor.b = abgr.r; \ - gl_FragColor.a = 1.0; \ - gl_FragColor *= u_modulation; \ - } \ -"; - -/* BGR to ABGR conversion */ -static const Uint8 GLES2_FragmentSrc_TextureBGRSrc_[] = " \ - precision mediump float; \ - uniform sampler2D u_texture; \ - uniform vec4 u_modulation; \ - varying vec2 v_texCoord; \ - \ - void main() \ - { \ - vec4 abgr = texture2D(u_texture, v_texCoord); \ - gl_FragColor = abgr; \ - gl_FragColor.a = 1.0; \ - gl_FragColor *= u_modulation; \ - } \ -"; - -#define JPEG_SHADER_CONSTANTS \ -"// YUV offset \n" \ -"const vec3 offset = vec3(0, -0.501960814, -0.501960814);\n" \ -"\n" \ -"// RGB coefficients \n" \ -"const mat3 matrix = mat3( 1, 1, 1,\n" \ -" 0, -0.3441, 1.772,\n" \ -" 1.402, -0.7141, 0);\n" \ - -#define BT601_SHADER_CONSTANTS \ -"// YUV offset \n" \ -"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n" \ -"\n" \ -"// RGB coefficients \n" \ -"const mat3 matrix = mat3( 1.1644, 1.1644, 1.1644,\n" \ -" 0, -0.3918, 2.0172,\n" \ -" 1.596, -0.813, 0);\n" \ - -#define BT709_SHADER_CONSTANTS \ -"// YUV offset \n" \ -"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n" \ -"\n" \ -"// RGB coefficients \n" \ -"const mat3 matrix = mat3( 1.1644, 1.1644, 1.1644,\n" \ -" 0, -0.2132, 2.1124,\n" \ -" 1.7927, -0.5329, 0);\n" \ - - -#define YUV_SHADER_PROLOGUE \ -"precision mediump float;\n" \ -"uniform sampler2D u_texture;\n" \ -"uniform sampler2D u_texture_u;\n" \ -"uniform sampler2D u_texture_v;\n" \ -"uniform vec4 u_modulation;\n" \ -"varying vec2 v_texCoord;\n" \ -"\n" \ - -#define YUV_SHADER_BODY \ -"\n" \ -"void main()\n" \ -"{\n" \ -" mediump vec3 yuv;\n" \ -" lowp vec3 rgb;\n" \ -"\n" \ -" // Get the YUV values \n" \ -" yuv.x = texture2D(u_texture, v_texCoord).r;\n" \ -" yuv.y = texture2D(u_texture_u, v_texCoord).r;\n" \ -" yuv.z = texture2D(u_texture_v, v_texCoord).r;\n" \ -"\n" \ -" // Do the color transform \n" \ -" yuv += offset;\n" \ -" rgb = matrix * yuv;\n" \ -"\n" \ -" // That was easy. :) \n" \ -" gl_FragColor = vec4(rgb, 1);\n" \ -" gl_FragColor *= u_modulation;\n" \ -"}" \ - -#define NV12_SHADER_BODY \ -"\n" \ -"void main()\n" \ -"{\n" \ -" mediump vec3 yuv;\n" \ -" lowp vec3 rgb;\n" \ -"\n" \ -" // Get the YUV values \n" \ -" yuv.x = texture2D(u_texture, v_texCoord).r;\n" \ -" yuv.yz = texture2D(u_texture_u, v_texCoord).ra;\n" \ -"\n" \ -" // Do the color transform \n" \ -" yuv += offset;\n" \ -" rgb = matrix * yuv;\n" \ -"\n" \ -" // That was easy. :) \n" \ -" gl_FragColor = vec4(rgb, 1);\n" \ -" gl_FragColor *= u_modulation;\n" \ -"}" \ - -#define NV21_SHADER_BODY \ -"\n" \ -"void main()\n" \ -"{\n" \ -" mediump vec3 yuv;\n" \ -" lowp vec3 rgb;\n" \ -"\n" \ -" // Get the YUV values \n" \ -" yuv.x = texture2D(u_texture, v_texCoord).r;\n" \ -" yuv.yz = texture2D(u_texture_u, v_texCoord).ar;\n" \ -"\n" \ -" // Do the color transform \n" \ -" yuv += offset;\n" \ -" rgb = matrix * yuv;\n" \ -"\n" \ -" // That was easy. :) \n" \ -" gl_FragColor = vec4(rgb, 1);\n" \ -" gl_FragColor *= u_modulation;\n" \ -"}" \ - -/* YUV to ABGR conversion */ -static const Uint8 GLES2_FragmentSrc_TextureYUVJPEGSrc_[] = \ - YUV_SHADER_PROLOGUE \ - JPEG_SHADER_CONSTANTS \ - YUV_SHADER_BODY \ -; -static const Uint8 GLES2_FragmentSrc_TextureYUVBT601Src_[] = \ - YUV_SHADER_PROLOGUE \ - BT601_SHADER_CONSTANTS \ - YUV_SHADER_BODY \ -; -static const Uint8 GLES2_FragmentSrc_TextureYUVBT709Src_[] = \ - YUV_SHADER_PROLOGUE \ - BT709_SHADER_CONSTANTS \ - YUV_SHADER_BODY \ -; - -/* NV12 to ABGR conversion */ -static const Uint8 GLES2_FragmentSrc_TextureNV12JPEGSrc_[] = \ - YUV_SHADER_PROLOGUE \ - JPEG_SHADER_CONSTANTS \ - NV12_SHADER_BODY \ -; -static const Uint8 GLES2_FragmentSrc_TextureNV12BT601Src_[] = \ - YUV_SHADER_PROLOGUE \ - BT601_SHADER_CONSTANTS \ - NV12_SHADER_BODY \ -; -static const Uint8 GLES2_FragmentSrc_TextureNV12BT709Src_[] = \ - YUV_SHADER_PROLOGUE \ - BT709_SHADER_CONSTANTS \ - NV12_SHADER_BODY \ -; - -/* NV21 to ABGR conversion */ -static const Uint8 GLES2_FragmentSrc_TextureNV21JPEGSrc_[] = \ - YUV_SHADER_PROLOGUE \ - JPEG_SHADER_CONSTANTS \ - NV21_SHADER_BODY \ -; -static const Uint8 GLES2_FragmentSrc_TextureNV21BT601Src_[] = \ - YUV_SHADER_PROLOGUE \ - BT601_SHADER_CONSTANTS \ - NV21_SHADER_BODY \ -; -static const Uint8 GLES2_FragmentSrc_TextureNV21BT709Src_[] = \ - YUV_SHADER_PROLOGUE \ - BT709_SHADER_CONSTANTS \ - NV21_SHADER_BODY \ -; - -/* Custom Android video format texture */ -static const Uint8 GLES2_FragmentSrc_TextureExternalOESSrc_[] = " \ - #extension GL_OES_EGL_image_external : require\n\ - precision mediump float; \ - uniform samplerExternalOES u_texture; \ - uniform vec4 u_modulation; \ - varying vec2 v_texCoord; \ - \ - void main() \ - { \ - gl_FragColor = texture2D(u_texture, v_texCoord); \ - gl_FragColor *= u_modulation; \ - } \ -"; - -static const GLES2_ShaderInstance GLES2_VertexSrc_Default = { - GL_VERTEX_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_VertexSrc_Default_), - GLES2_VertexSrc_Default_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_SolidSrc = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_SolidSrc_), - GLES2_FragmentSrc_SolidSrc_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureABGRSrc = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureABGRSrc_), - GLES2_FragmentSrc_TextureABGRSrc_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureARGBSrc = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureARGBSrc_), - GLES2_FragmentSrc_TextureARGBSrc_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureRGBSrc = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureRGBSrc_), - GLES2_FragmentSrc_TextureRGBSrc_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureBGRSrc = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureBGRSrc_), - GLES2_FragmentSrc_TextureBGRSrc_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureYUVJPEGSrc = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureYUVJPEGSrc_), - GLES2_FragmentSrc_TextureYUVJPEGSrc_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureYUVBT601Src = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureYUVBT601Src_), - GLES2_FragmentSrc_TextureYUVBT601Src_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureYUVBT709Src = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureYUVBT709Src_), - GLES2_FragmentSrc_TextureYUVBT709Src_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureNV12JPEGSrc = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureNV12JPEGSrc_), - GLES2_FragmentSrc_TextureNV12JPEGSrc_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureNV12BT601Src = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureNV12BT601Src_), - GLES2_FragmentSrc_TextureNV12BT601Src_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureNV21BT709Src = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureNV21BT709Src_), - GLES2_FragmentSrc_TextureNV21BT709Src_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureNV21JPEGSrc = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureNV21JPEGSrc_), - GLES2_FragmentSrc_TextureNV21JPEGSrc_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureNV21BT601Src = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureNV21BT601Src_), - GLES2_FragmentSrc_TextureNV21BT601Src_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureNV12BT709Src = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureNV12BT709Src_), - GLES2_FragmentSrc_TextureNV12BT709Src_ -}; - -static const GLES2_ShaderInstance GLES2_FragmentSrc_TextureExternalOESSrc = { - GL_FRAGMENT_SHADER, - GLES2_SOURCE_SHADER, - sizeof(GLES2_FragmentSrc_TextureExternalOESSrc_), - GLES2_FragmentSrc_TextureExternalOESSrc_ -}; - - -/************************************************************************************************* - * Vertex/fragment shader definitions * - *************************************************************************************************/ - -static GLES2_Shader GLES2_VertexShader_Default = { - 1, - { - &GLES2_VertexSrc_Default - } -}; - -static GLES2_Shader GLES2_FragmentShader_SolidSrc = { - 1, - { - &GLES2_FragmentSrc_SolidSrc - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureABGRSrc = { - 1, - { - &GLES2_FragmentSrc_TextureABGRSrc - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureARGBSrc = { - 1, - { - &GLES2_FragmentSrc_TextureARGBSrc - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureRGBSrc = { - 1, - { - &GLES2_FragmentSrc_TextureRGBSrc - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureBGRSrc = { - 1, - { - &GLES2_FragmentSrc_TextureBGRSrc - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureYUVJPEGSrc = { - 1, - { - &GLES2_FragmentSrc_TextureYUVJPEGSrc - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureYUVBT601Src = { - 1, - { - &GLES2_FragmentSrc_TextureYUVBT601Src - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureYUVBT709Src = { - 1, - { - &GLES2_FragmentSrc_TextureYUVBT709Src - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureNV12JPEGSrc = { - 1, - { - &GLES2_FragmentSrc_TextureNV12JPEGSrc - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureNV12BT601Src = { - 1, - { - &GLES2_FragmentSrc_TextureNV12BT601Src - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureNV12BT709Src = { - 1, - { - &GLES2_FragmentSrc_TextureNV12BT709Src - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureNV21JPEGSrc = { - 1, - { - &GLES2_FragmentSrc_TextureNV21JPEGSrc - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureNV21BT601Src = { - 1, - { - &GLES2_FragmentSrc_TextureNV21BT601Src - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureNV21BT709Src = { - 1, - { - &GLES2_FragmentSrc_TextureNV21BT709Src - } -}; - -static GLES2_Shader GLES2_FragmentShader_TextureExternalOESSrc = { - 1, - { - &GLES2_FragmentSrc_TextureExternalOESSrc - } -}; - - -/************************************************************************************************* - * Shader selector * - *************************************************************************************************/ - -const GLES2_Shader *GLES2_GetShader(GLES2_ShaderType type) -{ - switch (type) { - case GLES2_SHADER_VERTEX_DEFAULT: - return &GLES2_VertexShader_Default; - case GLES2_SHADER_FRAGMENT_SOLID_SRC: - return &GLES2_FragmentShader_SolidSrc; - case GLES2_SHADER_FRAGMENT_TEXTURE_ABGR_SRC: - return &GLES2_FragmentShader_TextureABGRSrc; - case GLES2_SHADER_FRAGMENT_TEXTURE_ARGB_SRC: - return &GLES2_FragmentShader_TextureARGBSrc; - case GLES2_SHADER_FRAGMENT_TEXTURE_RGB_SRC: - return &GLES2_FragmentShader_TextureRGBSrc; - case GLES2_SHADER_FRAGMENT_TEXTURE_BGR_SRC: - return &GLES2_FragmentShader_TextureBGRSrc; - case GLES2_SHADER_FRAGMENT_TEXTURE_YUV_JPEG_SRC: - return &GLES2_FragmentShader_TextureYUVJPEGSrc; - case GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT601_SRC: - return &GLES2_FragmentShader_TextureYUVBT601Src; - case GLES2_SHADER_FRAGMENT_TEXTURE_YUV_BT709_SRC: - return &GLES2_FragmentShader_TextureYUVBT709Src; - case GLES2_SHADER_FRAGMENT_TEXTURE_NV12_JPEG_SRC: - return &GLES2_FragmentShader_TextureNV12JPEGSrc; - case GLES2_SHADER_FRAGMENT_TEXTURE_NV12_BT601_SRC: - return &GLES2_FragmentShader_TextureNV12BT601Src; - case GLES2_SHADER_FRAGMENT_TEXTURE_NV12_BT709_SRC: - return &GLES2_FragmentShader_TextureNV12BT709Src; - case GLES2_SHADER_FRAGMENT_TEXTURE_NV21_JPEG_SRC: - return &GLES2_FragmentShader_TextureNV21JPEGSrc; - case GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT601_SRC: - return &GLES2_FragmentShader_TextureNV21BT601Src; - case GLES2_SHADER_FRAGMENT_TEXTURE_NV21_BT709_SRC: - return &GLES2_FragmentShader_TextureNV21BT709Src; - case GLES2_SHADER_FRAGMENT_TEXTURE_EXTERNAL_OES_SRC: - return &GLES2_FragmentShader_TextureExternalOESSrc; - default: - return NULL; - } -} - -#endif /* SDL_VIDEO_RENDER_OGL_ES2 && !SDL_RENDER_DISABLED */ - -/* vi: set ts=4 sw=4 expandtab: */ |