forked from 12to11/12to11
ab30a03d24
* egl.c (struct _EglBuffer): New field `scale'. Save the projective scale here. (struct _CompositeProgram): New field `scale'. Save the index of new uniform here. (EglCompileCompositeProgram): Fetch location of new uniform. (ApplyTransform): Set scale. (Composite): Apply value of new uniform. (BufferFromDmaBuf, BufferFromShm): Initialize scale to 0. (UpdateBufferForDamage): Scale damage if it and damage are set. * shaders.txt (Composite Rectangle Fragment Shader RGBA) (Composite Rectangle Fragment Shader RGBX) (Composite Rectangle Fragment Shader External): New uniform `scale'. (main): Divide texcoord by scale.
84 lines
1.6 KiB
GLSL
84 lines
1.6 KiB
GLSL
// -*- glsl -*-
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// File containing GLSL shaders used to generate shaders.h.
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// At the start of each shader, write // followed by two equals signs,
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// followed by a space, the name of the shader and a newline.
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// Following that, write the shader code.
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// To terminate a shader, write // followed by another two equals
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// signs, this time without a trailing name or whitespace.
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//== Clear Rectangle Vertex Shader
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attribute vec2 pos;
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void
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main (void)
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{
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gl_Position = vec4 (pos.x, pos.y, 1.0, 1.0);
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}
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//==
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//== Clear Rectangle Fragment Shader
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void
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main (void)
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{
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gl_FragColor = vec4 (0.0, 0.0, 0.0, 1.0);
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}
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//==
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//== Composite Rectangle Vertex Shader
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attribute vec2 pos;
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attribute vec2 texcoord;
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varying vec2 v_texcoord;
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void
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main (void)
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{
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gl_Position = vec4 (pos.x, pos.y, 1.0, 1.0);
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v_texcoord = texcoord;
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}
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//==
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//== Composite Rectangle Fragment Shader RGBA
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precision mediump float;
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uniform sampler2D texture;
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uniform float scale;
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varying vec2 v_texcoord;
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void
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main (void)
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{
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gl_FragColor = texture2D (texture, v_texcoord / scale);
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}
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//==
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//== Composite Rectangle Fragment Shader RGBX
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precision mediump float;
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uniform sampler2D texture;
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uniform float scale;
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varying vec2 v_texcoord;
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void
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main (void)
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{
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gl_FragColor = vec4 (texture2D (texture,
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v_texcoord / scale).rgb,
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1.0);
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}
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//==
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//== Composite Rectangle Fragment Shader External
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#extension GL_OES_EGL_image_external : require
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precision mediump float;
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uniform samplerExternalOES texture;
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uniform float scale;
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varying vec2 v_texcoord;
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void
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main (void)
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{
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gl_FragColor = texture2D (texture, v_texcoord / scale);
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}
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//==
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