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[565/906] effects: fix shader compilation with mesa drivers

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This commit is contained in:
Matthew Waters 2012-08-20 13:06:27 +10:00
parent 863f21b1f6
commit 96163f1589
1 changed files with 2 additions and 3 deletions
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5
gst/gl/effects/gstgleffectssources.c
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@ -267,7 +267,6 @@ const gchar *luma_threshold_fragment_source =
"uniform sampler2DRect tex;"
"void main () {"
" vec2 texturecoord = gl_TexCoord[0].st;"
" int i;"
" vec4 color = texture2DRect(tex, texturecoord);"
" float luma = dot(color.rgb, vec3(0.2125, 0.7154, 0.0721));" /* BT.709 (from orange book) */
" gl_FragColor = vec4 (vec3 (smoothstep (0.30, 0.50, luma)), color.a);"
@ -284,7 +283,7 @@ const gchar *sep_sobel_length_fragment_source =
" float len = length (g);"
/* little trick to avoid IF operator */
/* TODO: test if a standalone inverting pass is worth */
" gl_FragColor = abs(int(invert) - vec4(vec3(len), 1.0));"
" gl_FragColor = abs(vec4(vec3(float(invert) - len), 1.0));"
"}";
const gchar *desaturate_fragment_source =
@ -455,7 +454,7 @@ const gchar *sin_fragment_source =
" vec4 color = texture2DRect (tex, vec2(gl_TexCoord[0].st));"
" float luma = dot(color.rgb, vec3(0.2125, 0.7154, 0.0721));"
/* calculate hue with the Preucil formula */
" float cosh = 0.5*(2*color.r - color.g - color.b);"
" float cosh = color.r - 0.5*(color.g + color.b);"
/* sqrt(3)/2 = 0.866 */
" float sinh = 0.866*(color.g - color.b);"
/* hue = atan2 h */