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Added SDL 1c0f6952e65e.

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This commit is contained in:
rude
2015-03-15 15:47:43 +01:00
parent 4d04ac181e
commit 6a2aff6450
1109 changed files with 160136 additions and 33995 deletions
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libs/SDL2/src/render/opengl/SDL_shaders_gl.c
+111 -6
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@@ -113,7 +113,7 @@ static const char *shader_source[NUM_SHADERS][2] =
"}"
},
/* SHADER_YV12 */
/* SHADER_YUV */
{
/* vertex shader */
"varying vec4 v_color;\n"
@@ -133,7 +133,7 @@ static const char *shader_source[NUM_SHADERS][2] =
"uniform sampler2D tex2; // V \n"
"\n"
"// YUV offset \n"
"const vec3 offset = vec3(-0.0625, -0.5, -0.5);\n"
"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n"
"\n"
"// RGB coefficients \n"
"const vec3 Rcoeff = vec3(1.164, 0.000, 1.596);\n"
@@ -150,7 +150,7 @@ static const char *shader_source[NUM_SHADERS][2] =
" yuv.x = texture2D(tex0, tcoord).r;\n"
"\n"
" // Get the U and V values \n"
" tcoord *= 0.5;\n"
" tcoord *= UVCoordScale;\n"
" yuv.y = texture2D(tex1, tcoord).r;\n"
" yuv.z = texture2D(tex2, tcoord).r;\n"
"\n"
@@ -162,6 +162,106 @@ static const char *shader_source[NUM_SHADERS][2] =
"\n"
" // That was easy. :) \n"
" gl_FragColor = vec4(rgb, 1.0) * v_color;\n"
"}"
},
/* SHADER_NV12 */
{
/* vertex shader */
"varying vec4 v_color;\n"
"varying vec2 v_texCoord;\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
" v_color = gl_Color;\n"
" v_texCoord = vec2(gl_MultiTexCoord0);\n"
"}",
/* fragment shader */
"varying vec4 v_color;\n"
"varying vec2 v_texCoord;\n"
"uniform sampler2D tex0; // Y \n"
"uniform sampler2D tex1; // U/V \n"
"\n"
"// YUV offset \n"
"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n"
"\n"
"// RGB coefficients \n"
"const vec3 Rcoeff = vec3(1.164, 0.000, 1.596);\n"
"const vec3 Gcoeff = vec3(1.164, -0.391, -0.813);\n"
"const vec3 Bcoeff = vec3(1.164, 2.018, 0.000);\n"
"\n"
"void main()\n"
"{\n"
" vec2 tcoord;\n"
" vec3 yuv, rgb;\n"
"\n"
" // Get the Y value \n"
" tcoord = v_texCoord;\n"
" yuv.x = texture2D(tex0, tcoord).r;\n"
"\n"
" // Get the U and V values \n"
" tcoord *= UVCoordScale;\n"
" yuv.yz = texture2D(tex1, tcoord).ra;\n"
"\n"
" // Do the color transform \n"
" yuv += offset;\n"
" rgb.r = dot(yuv, Rcoeff);\n"
" rgb.g = dot(yuv, Gcoeff);\n"
" rgb.b = dot(yuv, Bcoeff);\n"
"\n"
" // That was easy. :) \n"
" gl_FragColor = vec4(rgb, 1.0) * v_color;\n"
"}"
},
/* SHADER_NV21 */
{
/* vertex shader */
"varying vec4 v_color;\n"
"varying vec2 v_texCoord;\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;\n"
" v_color = gl_Color;\n"
" v_texCoord = vec2(gl_MultiTexCoord0);\n"
"}",
/* fragment shader */
"varying vec4 v_color;\n"
"varying vec2 v_texCoord;\n"
"uniform sampler2D tex0; // Y \n"
"uniform sampler2D tex1; // U/V \n"
"\n"
"// YUV offset \n"
"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n"
"\n"
"// RGB coefficients \n"
"const vec3 Rcoeff = vec3(1.164, 0.000, 1.596);\n"
"const vec3 Gcoeff = vec3(1.164, -0.391, -0.813);\n"
"const vec3 Bcoeff = vec3(1.164, 2.018, 0.000);\n"
"\n"
"void main()\n"
"{\n"
" vec2 tcoord;\n"
" vec3 yuv, rgb;\n"
"\n"
" // Get the Y value \n"
" tcoord = v_texCoord;\n"
" yuv.x = texture2D(tex0, tcoord).r;\n"
"\n"
" // Get the U and V values \n"
" tcoord *= UVCoordScale;\n"
" yuv.yz = texture2D(tex1, tcoord).ar;\n"
"\n"
" // Do the color transform \n"
" yuv += offset;\n"
" rgb.r = dot(yuv, Rcoeff);\n"
" rgb.g = dot(yuv, Gcoeff);\n"
" rgb.b = dot(yuv, Bcoeff);\n"
"\n"
" // That was easy. :) \n"
" gl_FragColor = vec4(rgb, 1.0) * v_color;\n"
"}"
},
};
@@ -218,7 +318,11 @@ CompileShaderProgram(GL_ShaderContext *ctx, int index, GL_ShaderData *data)
if (ctx->GL_ARB_texture_rectangle_supported) {
frag_defines =
"#define sampler2D sampler2DRect\n"
"#define texture2D texture2DRect\n";
"#define texture2D texture2DRect\n"
"#define UVCoordScale 0.5\n";
} else {
frag_defines =
"#define UVCoordScale 1.0\n";
}
/* Create one program object to rule them all */
@@ -276,8 +380,9 @@ GL_CreateShaderContext()
return NULL;
}
if (SDL_GL_ExtensionSupported("GL_ARB_texture_rectangle")
|| SDL_GL_ExtensionSupported("GL_EXT_texture_rectangle")) {
if (!SDL_GL_ExtensionSupported("GL_ARB_texture_non_power_of_two") &&
(SDL_GL_ExtensionSupported("GL_ARB_texture_rectangle") ||
SDL_GL_ExtensionSupported("GL_EXT_texture_rectangle"))) {
ctx->GL_ARB_texture_rectangle_supported = SDL_TRUE;
}