diff options
| author | Eric Anholt <eric@anholt.net> | 2010-04-26 16:11:27 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-06-03 17:08:42 -0700 |
| commit | 3698065a7549c97870cf9cd70fbbcb2bc49ed78f (patch) | |
| tree | 343ecff2a48ff0029b4c3220fd5422c8f2dc1d20 | |
| parent | c7629d8d71bd8a508f667da07c79ff9f8931b180 (diff) | |
gstgldisplay: Move a constant subexpression out of texture2DRect() args.
Reduces the download_YUY2_UYVY shader from 53 to 42 Mesa instructions. Runtime
wasn't significantly impacted.
| -rw-r--r-- | gst-libs/gst/gl/gstgldisplay.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/gst-libs/gst/gl/gstgldisplay.c b/gst-libs/gst/gl/gstgldisplay.c index 0445cbf..ad0fba2 100644 --- a/gst-libs/gst/gl/gstgldisplay.c +++ b/gst-libs/gst/gl/gstgldisplay.c @@ -360,12 +360,14 @@ gst_gl_display_init (GstGLDisplay * display, GstGLDisplayClass * klass) #ifndef OPENGL_ES2 " fx = gl_TexCoord[0].x;\n" " fy = gl_TexCoord[0].y;\n" - " r=texture2DRect(tex,vec2(fx*2.0,fy)).r;\n" - " g=texture2DRect(tex,vec2(fx*2.0,fy)).g;\n" - " b=texture2DRect(tex,vec2(fx*2.0,fy)).b;\n" - " r2=texture2DRect(tex,vec2(fx*2.0+1.0,fy)).r;\n" - " g2=texture2DRect(tex,vec2(fx*2.0+1.0,fy)).g;\n" - " b2=texture2DRect(tex,vec2(fx*2.0+1.0,fy)).b;\n" + " vec2 texcoords = vec2(fx * 2.0, fy);\n" + " vec2 texcoords2 = vec2(fx * 2.0 + 1.0, fy);\n" + " r=texture2DRect(tex, texcoords).r;\n" + " g=texture2DRect(tex, texcoords).g;\n" + " b=texture2DRect(tex, texcoords).b;\n" + " r2=texture2DRect(tex, texcoords2).r;\n" + " g2=texture2DRect(tex, texcoords2).g;\n" + " b2=texture2DRect(tex, texcoords2).b;\n" #else " fx = v_texCoord.x;\n" " fy = v_texCoord.y;\n" |