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Last change
on this file since 22640 was 22640, checked in by vboxsync, 16 years ago |
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OSE fix
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Property svn:eol-style
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native
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Property svn:keywords
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Author Date Id Revision
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File size:
849 bytes
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| 1 | #extension GL_ARB_texture_rectangle : enable
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| 2 |
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| 3 | uniform sampler2DRect uSrcTex;
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| 4 |
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| 5 | void cconvApplyAYUV(vec4 color);
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| 6 | /* texture internalFormat: 4
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| 7 | * size: width/2 X height
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| 8 | * data format: GL_BGRA_EXT
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| 9 | * UYVY ->
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| 10 | * U = B
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| 11 | * V = R
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| 12 | * for even -> Y = G
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| 13 | * for odd -> Y = A
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| 14 | /* UYVY-rgb888 conversion shader */
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| 15 | /* this is also Y422 and UYNV */
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| 16 | void cconvUYVY(vec2 srcCoord)
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| 17 | {
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| 18 | float x = srcCoord.x;
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| 19 | vec4 srcClr = texture2DRect(uSrcTex, vec2(x, srcCoord.y));
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| 20 | float u = srcClr.b;
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| 21 | float v = srcClr.r;
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| 22 | int pix = int(x);
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| 23 | float part = x - float(pix);
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| 24 | float y;
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| 25 | if(part < 0.5)
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| 26 | {
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| 27 | y = srcClr.g;
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| 28 | }
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| 29 | else
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| 30 | {
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| 31 | y = srcClr.a;
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| 32 | }
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| 33 | /* convert it to AYUV (for the GL_BGRA_EXT texture this is mapped as follows:
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| 34 | * A -> B
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| 35 | * Y -> G
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| 36 | * U -> R
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| 37 | * V -> A */
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| 38 | cconvApplyAYUV(vec4(u, y, 0.0, v));}
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