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Added support for SDL_COLORSPACE_BT709_FULL to the hardware renderers
This commit is contained in:
Sam Lantinga
parent
ec322bee1c
commit
dab77fe29b
55 changed files with 8405 additions and 9470 deletions
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@ -52,11 +52,13 @@ struct GL_ShaderContext
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PFNGLSHADERSOURCEARBPROC glShaderSourceARB;
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PFNGLUNIFORM1IARBPROC glUniform1iARB;
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PFNGLUNIFORM1FARBPROC glUniform1fARB;
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PFNGLUNIFORM3FARBPROC glUniform3fARB;
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PFNGLUSEPROGRAMOBJECTARBPROC glUseProgramObjectARB;
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SDL_bool GL_ARB_texture_rectangle_supported;
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GL_ShaderData shaders[NUM_SHADERS];
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const float *shader_params[NUM_SHADERS];
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};
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/* *INDENT-OFF* */ /* clang-format off */
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@ -81,39 +83,16 @@ struct GL_ShaderContext
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" v_texCoord = vec2(gl_MultiTexCoord0);\n" \
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"}" \
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#define JPEG_SHADER_CONSTANTS \
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"// YUV offset \n" \
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"const vec3 offset = vec3(0, -0.501960814, -0.501960814);\n" \
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"\n" \
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"// RGB coefficients \n" \
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"const vec3 Rcoeff = vec3(1, 0.000, 1.402);\n" \
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"const vec3 Gcoeff = vec3(1, -0.3441, -0.7141);\n" \
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"const vec3 Bcoeff = vec3(1, 1.772, 0.000);\n" \
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#define BT601_SHADER_CONSTANTS \
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"// YUV offset \n" \
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"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n" \
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"\n" \
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"// RGB coefficients \n" \
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"const vec3 Rcoeff = vec3(1.1644, 0.000, 1.596);\n" \
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"const vec3 Gcoeff = vec3(1.1644, -0.3918, -0.813);\n" \
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"const vec3 Bcoeff = vec3(1.1644, 2.0172, 0.000);\n" \
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#define BT709_SHADER_CONSTANTS \
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"// YUV offset \n" \
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"const vec3 offset = vec3(-0.0627451017, -0.501960814, -0.501960814);\n" \
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"\n" \
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"// RGB coefficients \n" \
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"const vec3 Rcoeff = vec3(1.1644, 0.000, 1.7927);\n" \
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"const vec3 Gcoeff = vec3(1.1644, -0.2132, -0.5329);\n" \
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"const vec3 Bcoeff = vec3(1.1644, 2.1124, 0.000);\n" \
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#define YUV_SHADER_PROLOGUE \
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"varying vec4 v_color;\n" \
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"varying vec2 v_texCoord;\n" \
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"uniform sampler2D tex0; // Y \n" \
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"uniform sampler2D tex1; // U \n" \
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"uniform sampler2D tex2; // V \n" \
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"uniform vec3 Yoffset;\n" \
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"uniform vec3 Rcoeff;\n" \
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"uniform vec3 Gcoeff;\n" \
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"uniform vec3 Bcoeff;\n" \
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"\n" \
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#define YUV_SHADER_BODY \
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@ -133,7 +112,7 @@ struct GL_ShaderContext
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" yuv.z = texture2D(tex2, tcoord).r;\n" \
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"\n" \
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" // Do the color transform \n" \
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" yuv += offset;\n" \
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" yuv += Yoffset;\n" \
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" rgb.r = dot(yuv, Rcoeff);\n" \
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" rgb.g = dot(yuv, Gcoeff);\n" \
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" rgb.b = dot(yuv, Bcoeff);\n" \
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@ -147,6 +126,10 @@ struct GL_ShaderContext
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"varying vec2 v_texCoord;\n" \
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"uniform sampler2D tex0; // Y \n" \
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"uniform sampler2D tex1; // U/V \n" \
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"uniform vec3 Yoffset;\n" \
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"uniform vec3 Rcoeff;\n" \
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"uniform vec3 Gcoeff;\n" \
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"uniform vec3 Bcoeff;\n" \
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"\n" \
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#define NV12_RA_SHADER_BODY \
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@ -165,7 +148,7 @@ struct GL_ShaderContext
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" yuv.yz = texture2D(tex1, tcoord).ra;\n" \
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"\n" \
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" // Do the color transform \n" \
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" yuv += offset;\n" \
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" yuv += Yoffset;\n" \
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" rgb.r = dot(yuv, Rcoeff);\n" \
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" rgb.g = dot(yuv, Gcoeff);\n" \
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" rgb.b = dot(yuv, Bcoeff);\n" \
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@ -190,7 +173,7 @@ struct GL_ShaderContext
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" yuv.yz = texture2D(tex1, tcoord).rg;\n" \
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"\n" \
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" // Do the color transform \n" \
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" yuv += offset;\n" \
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" yuv += Yoffset;\n" \
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" rgb.r = dot(yuv, Rcoeff);\n" \
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" rgb.g = dot(yuv, Gcoeff);\n" \
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" rgb.b = dot(yuv, Bcoeff);\n" \
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@ -199,14 +182,7 @@ struct GL_ShaderContext
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" gl_FragColor = vec4(rgb, 1.0) * v_color;\n" \
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"}" \
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#define NV21_SHADER_PROLOGUE \
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"varying vec4 v_color;\n" \
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"varying vec2 v_texCoord;\n" \
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"uniform sampler2D tex0; // Y \n" \
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"uniform sampler2D tex1; // U/V \n" \
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"\n" \
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#define NV21_SHADER_BODY \
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#define NV21_RA_SHADER_BODY \
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"\n" \
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"void main()\n" \
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"{\n" \
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@ -222,7 +198,32 @@ struct GL_ShaderContext
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" yuv.yz = texture2D(tex1, tcoord).ar;\n" \
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"\n" \
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" // Do the color transform \n" \
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" yuv += offset;\n" \
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" yuv += Yoffset;\n" \
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" rgb.r = dot(yuv, Rcoeff);\n" \
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" rgb.g = dot(yuv, Gcoeff);\n" \
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" rgb.b = dot(yuv, Bcoeff);\n" \
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"\n" \
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" // That was easy. :) \n" \
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" gl_FragColor = vec4(rgb, 1.0) * v_color;\n" \
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"}" \
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#define NV21_RG_SHADER_BODY \
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"\n" \
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"void main()\n" \
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"{\n" \
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" vec2 tcoord;\n" \
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" vec3 yuv, rgb;\n" \
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"\n" \
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" // Get the Y value \n" \
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" tcoord = v_texCoord;\n" \
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" yuv.x = texture2D(tex0, tcoord).r;\n" \
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"\n" \
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" // Get the U and V values \n" \
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" tcoord *= UVCoordScale;\n" \
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" yuv.yz = texture2D(tex1, tcoord).gr;\n" \
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"\n" \
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" // Do the color transform \n" \
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" yuv += Yoffset;\n" \
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" rgb.r = dot(yuv, Rcoeff);\n" \
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" rgb.g = dot(yuv, Gcoeff);\n" \
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" rgb.b = dot(yuv, Bcoeff);\n" \
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@ -284,104 +285,45 @@ static const char *shader_source[NUM_SHADERS][2] = {
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"}"
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},
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#if SDL_HAVE_YUV
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/* SHADER_YUV_JPEG */
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/* SHADER_YUV */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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YUV_SHADER_PROLOGUE
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JPEG_SHADER_CONSTANTS
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YUV_SHADER_BODY
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},
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/* SHADER_YUV_BT601 */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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YUV_SHADER_PROLOGUE
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BT601_SHADER_CONSTANTS
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YUV_SHADER_BODY
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},
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/* SHADER_YUV_BT709 */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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YUV_SHADER_PROLOGUE
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BT709_SHADER_CONSTANTS
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YUV_SHADER_BODY
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},
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/* SHADER_NV12_JPEG */
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/* SHADER_NV12_RA */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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NV12_SHADER_PROLOGUE
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JPEG_SHADER_CONSTANTS
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NV12_RA_SHADER_BODY
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},
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/* SHADER_NV12_RA_BT601 */
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/* SHADER_NV12_RG */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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NV12_SHADER_PROLOGUE
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BT601_SHADER_CONSTANTS
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NV12_RA_SHADER_BODY
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},
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/* SHADER_NV12_RG_BT601 */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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NV12_SHADER_PROLOGUE
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BT601_SHADER_CONSTANTS
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NV12_RG_SHADER_BODY
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},
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/* SHADER_NV12_RA_BT709 */
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/* SHADER_NV21_RA */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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NV12_SHADER_PROLOGUE
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BT709_SHADER_CONSTANTS
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NV12_RA_SHADER_BODY
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NV21_RA_SHADER_BODY
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},
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/* SHADER_NV12_RG_BT709 */
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/* SHADER_NV21_RG */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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NV12_SHADER_PROLOGUE
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BT709_SHADER_CONSTANTS
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NV12_RG_SHADER_BODY
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},
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/* SHADER_NV21_JPEG */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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NV21_SHADER_PROLOGUE
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JPEG_SHADER_CONSTANTS
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NV21_SHADER_BODY
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},
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/* SHADER_NV21_BT601 */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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NV21_SHADER_PROLOGUE
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BT601_SHADER_CONSTANTS
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NV21_SHADER_BODY
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},
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/* SHADER_NV21_BT709 */
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{
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/* vertex shader */
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TEXTURE_VERTEX_SHADER,
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/* fragment shader */
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NV21_SHADER_PROLOGUE
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BT709_SHADER_CONSTANTS
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NV21_SHADER_BODY
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NV21_RG_SHADER_BODY
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},
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#endif /* SDL_HAVE_YUV */
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};
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@ -524,6 +466,7 @@ GL_ShaderContext *GL_CreateShaderContext(void)
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ctx->glShaderSourceARB = (PFNGLSHADERSOURCEARBPROC)SDL_GL_GetProcAddress("glShaderSourceARB");
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ctx->glUniform1iARB = (PFNGLUNIFORM1IARBPROC)SDL_GL_GetProcAddress("glUniform1iARB");
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ctx->glUniform1fARB = (PFNGLUNIFORM1FARBPROC)SDL_GL_GetProcAddress("glUniform1fARB");
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ctx->glUniform3fARB = (PFNGLUNIFORM3FARBPROC)SDL_GL_GetProcAddress("glUniform3fARB");
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ctx->glUseProgramObjectARB = (PFNGLUSEPROGRAMOBJECTARBPROC)SDL_GL_GetProcAddress("glUseProgramObjectARB");
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if (ctx->glGetError &&
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ctx->glAttachObjectARB &&
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@ -538,6 +481,7 @@ GL_ShaderContext *GL_CreateShaderContext(void)
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ctx->glShaderSourceARB &&
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ctx->glUniform1iARB &&
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ctx->glUniform1fARB &&
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ctx->glUniform3fARB &&
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ctx->glUseProgramObjectARB) {
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shaders_supported = SDL_TRUE;
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}
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@ -560,9 +504,33 @@ GL_ShaderContext *GL_CreateShaderContext(void)
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return ctx;
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}
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void GL_SelectShader(GL_ShaderContext *ctx, GL_Shader shader)
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void GL_SelectShader(GL_ShaderContext *ctx, GL_Shader shader, const float *shader_params)
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{
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ctx->glUseProgramObjectARB(ctx->shaders[shader].program);
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GLint location;
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GLhandleARB program = ctx->shaders[shader].program;
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ctx->glUseProgramObjectARB(program);
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if (shader_params && shader_params != ctx->shader_params[shader]) {
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/* YUV shader params are Yoffset, 0, Rcoeff, 0, Gcoeff, 0, Bcoeff, 0 */
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location = ctx->glGetUniformLocationARB(program, "Yoffset");
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if (location >= 0) {
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ctx->glUniform3fARB(location, shader_params[0], shader_params[1], shader_params[2]);
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}
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location = ctx->glGetUniformLocationARB(program, "Rcoeff");
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if (location >= 0) {
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ctx->glUniform3fARB(location, shader_params[4], shader_params[5], shader_params[6]);
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}
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location = ctx->glGetUniformLocationARB(program, "Gcoeff");
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if (location >= 0) {
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ctx->glUniform3fARB(location, shader_params[8], shader_params[9], shader_params[10]);
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}
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location = ctx->glGetUniformLocationARB(program, "Bcoeff");
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if (location >= 0) {
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ctx->glUniform3fARB(location, shader_params[12], shader_params[13], shader_params[14]);
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}
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ctx->shader_params[shader] = shader_params;
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}
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}
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void GL_DestroyShaderContext(GL_ShaderContext *ctx)
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