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authorreimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2>2008-01-15 17:59:20 +0000
committerreimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2>2008-01-15 17:59:20 +0000
commit1fbd767ef649f643b42749af3000b1276b9b00eb (patch)
tree5bef70ecff668c41850e93abf2677e9617f311dd /libvo/gl_common.c
parent6fed08aee33418948dcb5c3c4cdfae1ddf13df11 (diff)
downloadmpv-1fbd767ef649f643b42749af3000b1276b9b00eb.tar.bz2
mpv-1fbd767ef649f643b42749af3000b1276b9b00eb.tar.xz
Add experimental unsharp-mask OpenGL scaler. Certainly not yet perfect.
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@25757 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libvo/gl_common.c')
-rw-r--r--libvo/gl_common.c35
1 files changed, 35 insertions, 0 deletions
diff --git a/libvo/gl_common.c b/libvo/gl_common.c
index 7afb1a9c34..4117d6de9f 100644
--- a/libvo/gl_common.c
+++ b/libvo/gl_common.c
@@ -756,6 +756,26 @@ static const char *bicub_x_filt_template_RECT =
"MUL cdelta.xz, parmx.rrgg, {-1, 0, 1, 0};"
BICUB_X_FILT_MAIN("RECT");
+#define UNSHARP_FILT_MAIN(textype) \
+ "TEX a.r, fragment.texcoord[%c], texture[%c], "textype";" \
+ "TEX b.r, coord.xyxy, texture[%c], "textype";" \
+ "TEX b.g, coord.zwzw, texture[%c], "textype";" \
+ "TEX b.b, coord2.xyxy, texture[%c], "textype";" \
+ "TEX b.a, coord2.zwzw, texture[%c], "textype";" \
+ "DP4 b, b, {0.25, 0.25, 0.25, 0.25};" \
+ "SUB b.r, a.r, b.r;" \
+ "MAD yuv.%c, b.r, %s, a.r;"
+
+static const char *unsharp_filt_template_2D =
+ "ADD coord, fragment.texcoord[%c].xyxy, {%f, %f, -%f, -%f};"
+ "ADD coord2, fragment.texcoord[%c].xyxy, {%f, -%f, -%f, %f};"
+ UNSHARP_FILT_MAIN("2D");
+
+static const char *unsharp_filt_template_RECT =
+ "ADD coord, fragment.texcoord[%c].xyxy, {0.5, 0.5, -0.5, -0.5};"
+ "ADD coord2, fragment.texcoord[%c].xyxy, {0.5, -0.5, -0.5, 0.5};"
+ UNSHARP_FILT_MAIN("RECT");
+
static const char *yuv_prog_template =
"PARAM ycoef = {%.4f, %.4f, %.4f};"
"PARAM ucoef = {%.4f, %.4f, %.4f};"
@@ -812,6 +832,7 @@ static void create_scaler_textures(int scaler, int *texu, char *texs) {
switch (scaler) {
case YUV_SCALER_BILIN:
case YUV_SCALER_BICUB_NOTEX:
+ case YUV_SCALER_UNSHARP:
break;
case YUV_SCALER_BICUB:
case YUV_SCALER_BICUB_X:
@@ -1033,6 +1054,20 @@ static void add_scaler(int scaler, char **prog_pos, int *remain, char *texs,
(float)1.0 / texh, (float)1.0 / texh,
in_tex, in_tex, in_tex, in_tex, in_tex, in_tex, out_comp);
break;
+ case YUV_SCALER_UNSHARP:
+ if (rect)
+ snprintf(*prog_pos, *remain, unsharp_filt_template_RECT,
+ in_tex,
+ in_tex,
+ in_tex, in_tex, in_tex, in_tex, in_tex, in_tex, out_comp,
+ "{0.5}");
+ else
+ snprintf(*prog_pos, *remain, unsharp_filt_template_2D,
+ in_tex, (float)0.5 / texw, (float)0.5 / texh, (float)0.5 / texw, (float)0.5 / texh,
+ in_tex, (float)0.5 / texw, (float)0.5 / texh, (float)0.5 / texw, (float)0.5 / texh,
+ in_tex, in_tex, in_tex, in_tex, in_tex, in_tex, out_comp,
+ "{0.5}");
+ break;
}
*remain -= strlen(*prog_pos);
*prog_pos += strlen(*prog_pos);