added: convolution scalers for 8 bit rgba textures

git-svn-id: https://xbmc.svn.sourceforge.net/svnroot/xbmc/trunk@26834 568bbfeb-2a22-0410-94d2-cc84cf5bfa90

1 files changed, 0 insertions, 58 deletions

diff --git a/system/shaders/convolution-6x6.glsl b/system/shaders/convolution-6x6.glsl
deleted file mode 100644
index e5fe9a29bb..0000000000
--- a/system/shaders/convolution-6x6.glsl
+++ /dev/null
@@ -1,58 +0,0 @@
-uniform sampler2D img;
-uniform float     stepx;
-uniform float     stepy;
-uniform sampler1D kernelTex;
-
-vec3 weight(float pos)
-{
-  return texture1D(kernelTex, pos).rgb;
-}
-
-vec3 pixel(float xpos, float ypos)
-{
-  return texture2D(img, vec2(xpos, ypos)).rgb;
-}
-
-vec3 line (float ypos, vec3 xpos1, vec3 xpos2, vec3 linetaps1, vec3 linetaps2)
-{
-  vec3  pixels;
-
-  pixels  = pixel(xpos1.r, ypos) * linetaps1.r;
-  pixels += pixel(xpos1.g, ypos) * linetaps2.r;
-  pixels += pixel(xpos1.b, ypos) * linetaps1.g;
-  pixels += pixel(xpos2.r, ypos) * linetaps2.g;
-  pixels += pixel(xpos2.g, ypos) * linetaps1.b;
-  pixels += pixel(xpos2.b, ypos) * linetaps2.b;
-
-  return pixels;
-}
-
-void main()
-{
-  float xf = fract(gl_TexCoord[0].x / stepx);
-  float yf = fract(gl_TexCoord[0].y / stepy);
-
-  vec3 linetaps1   = weight((1.0 - xf) / 2.0);
-  vec3 linetaps2   = weight((1.0 - xf) / 2.0 + 0.5);
-  vec3 columntaps1 = weight((1.0 - yf) / 2.0);
-  vec3 columntaps2 = weight((1.0 - yf) / 2.0 + 0.5);
-
-  vec3 xpos1 = vec3(
-      (-1.5 - xf) * stepx + gl_TexCoord[0].x,
-      (-0.5 - xf) * stepx + gl_TexCoord[0].x,
-      ( 0.5 - xf) * stepx + gl_TexCoord[0].x);
-  vec3 xpos2 = vec3(
-      ( 1.5 - xf) * stepx + gl_TexCoord[0].x,
-      ( 2.5 - xf) * stepx + gl_TexCoord[0].x,
-      ( 3.5 - xf) * stepx + gl_TexCoord[0].x);
-
-  gl_FragColor.rgb  = line((-1.5 - yf) * stepy + gl_TexCoord[0].y, xpos1, xpos2, linetaps1, linetaps2) * columntaps1.r;
-  gl_FragColor.rgb += line((-0.5 - yf) * stepy + gl_TexCoord[0].y, xpos1, xpos2, linetaps1, linetaps2) * columntaps2.r;
-  gl_FragColor.rgb += line(( 0.5 - yf) * stepy + gl_TexCoord[0].y, xpos1, xpos2, linetaps1, linetaps2) * columntaps1.g;
-  gl_FragColor.rgb += line(( 1.5 - yf) * stepy + gl_TexCoord[0].y, xpos1, xpos2, linetaps1, linetaps2) * columntaps2.g;
-  gl_FragColor.rgb += line(( 2.5 - yf) * stepy + gl_TexCoord[0].y, xpos1, xpos2, linetaps1, linetaps2) * columntaps1.b;
-  gl_FragColor.rgb += line(( 3.5 - yf) * stepy + gl_TexCoord[0].y, xpos1, xpos2, linetaps1, linetaps2) * columntaps2.b;
-
-  gl_FragColor.a = gl_Color.a;
-}
-