lavc: Remove old vaapi decode infrastructure

[ffmpeg] / libswscale / yuv2rgb.c

diff --git a/libswscale/yuv2rgb.c b/libswscale/yuv2rgb.c
index 6c65cc2d2fb3b3f83810f78ef507f40fbbe2ef52..fca324299d7a295aea2ed20a3e197c9e0c69b0de 100644 (file)
--- a/libswscale/yuv2rgb.c
+++ b/libswscale/yuv2rgb.c
@@ -35,11 +35,17 @@
 #include "swscale.h"
 #include "swscale_internal.h"
 
-extern const uint8_t dither_4x4_16[4][8];
-extern const uint8_t dither_8x8_32[8][8];
-extern const uint8_t dither_8x8_73[8][8];
-extern const uint8_t dither_8x8_220[8][8];
-
+/* Color space conversion coefficients for YCbCr -> RGB mapping.
+ *
+ * Entries are {crv, cbu, cgu, cgv}
+ *
+ *   crv = (255 / 224) * 65536 * (1 - cr) / 0.5
+ *   cbu = (255 / 224) * 65536 * (1 - cb) / 0.5
+ *   cgu = (255 / 224) * 65536 * (cb / cg) * (1 - cb) / 0.5
+ *   cgv = (255 / 224) * 65536 * (cr / cg) * (1 - cr) / 0.5
+ *
+ * where Y = cr * R + cg * G + cb * B and cr + cg + cb = 1.
+ */
 const int32_t ff_yuv2rgb_coeffs[8][4] = {
     { 117504, 138453, 13954, 34903 }, /* no sequence_display_extension */
     { 117504, 138453, 13954, 34903 }, /* ITU-R Rec. 709 (1990) */
@@ -409,7 +415,7 @@ CLOSEYUV2RGBFUNC(8)
 
 // r, g, b, dst_1, dst_2
 YUV2RGBFUNC(yuv2rgb_c_12_ordered_dither, uint16_t, 0)
-    const uint8_t *d16 = dither_4x4_16[y & 3];
+    const uint8_t *d16 = ff_dither_4x4_16[y & 3];
 
 #define PUTRGB12(dst, src, i, o)                    \
     Y              = src[2 * i];                    \
@@ -440,8 +446,8 @@ CLOSEYUV2RGBFUNC(8)
 
 // r, g, b, dst_1, dst_2
 YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
-    const uint8_t *d32 = dither_8x8_32[y & 7];
-    const uint8_t *d64 = dither_8x8_73[y & 7];
+    const uint8_t *d32 = ff_dither_8x8_32[y & 7];
+    const uint8_t *d64 = ff_dither_8x8_73[y & 7];
 
 #define PUTRGB8(dst, src, i, o)                     \
     Y              = src[2 * i];                    \
@@ -471,8 +477,8 @@ YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
 CLOSEYUV2RGBFUNC(8)
 
 YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0)
-    const uint8_t * d64 = dither_8x8_73[y & 7];
-    const uint8_t *d128 = dither_8x8_220[y & 7];
+    const uint8_t * d64 = ff_dither_8x8_73[y & 7];
+    const uint8_t *d128 = ff_dither_8x8_220[y & 7];
     int acc;
 
 #define PUTRGB4D(dst, src, i, o)                    \
@@ -504,8 +510,8 @@ YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0)
 CLOSEYUV2RGBFUNC(4)
 
 YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0)
-    const uint8_t *d64  = dither_8x8_73[y & 7];
-    const uint8_t *d128 = dither_8x8_220[y & 7];
+    const uint8_t *d64  = ff_dither_8x8_73[y & 7];
+    const uint8_t *d128 = ff_dither_8x8_220[y & 7];
 
 #define PUTRGB4DB(dst, src, i, o)                   \
     Y              = src[2 * i];                    \
@@ -535,7 +541,7 @@ YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0)
 CLOSEYUV2RGBFUNC(8)
 
 YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0)
-    const uint8_t *d128 = dither_8x8_220[y & 7];
+    const uint8_t *d128 = ff_dither_8x8_220[y & 7];
     char out_1 = 0, out_2 = 0;
     g = c->table_gU[128] + c->table_gV[128];
 
@@ -565,14 +571,10 @@ SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
 {
     SwsFunc t = NULL;
 
-    if (HAVE_MMX)
-        t = ff_yuv2rgb_init_mmx(c);
-    else if (HAVE_VIS)
-        t = ff_yuv2rgb_init_vis(c);
-    else if (HAVE_ALTIVEC)
-        t = ff_yuv2rgb_init_altivec(c);
-    else if (ARCH_BFIN)
-        t = ff_yuv2rgb_get_func_ptr_bfin(c);
+    if (ARCH_PPC)
+        t = ff_yuv2rgb_init_ppc(c);
+    if (ARCH_X86)
+        t = ff_yuv2rgb_init_x86(c);
 
     if (t)
         return t;
@@ -745,9 +747,13 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
 
     av_free(c->yuvTable);
 
+#define ALLOC_YUV_TABLE(x)          \
+        c->yuvTable = av_malloc(x); \
+        if (!c->yuvTable)           \
+            return AVERROR(ENOMEM);
     switch (bpp) {
     case 1:
-        c->yuvTable = av_malloc(1024);
+        ALLOC_YUV_TABLE(1024);
         y_table     = c->yuvTable;
         yb = -(384 << 16) - oy;
         for (i = 0; i < 1024 - 110; i++) {
@@ -762,7 +768,7 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
         rbase       = isRgb ? 3 : 0;
         gbase       = 1;
         bbase       = isRgb ? 0 : 3;
-        c->yuvTable = av_malloc(1024 * 3);
+        ALLOC_YUV_TABLE(1024 * 3);
         y_table     = c->yuvTable;
         yb = -(384 << 16) - oy;
         for (i = 0; i < 1024 - 110; i++) {
@@ -781,7 +787,7 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
         rbase       = isRgb ? 5 : 0;
         gbase       = isRgb ? 2 : 3;
         bbase       = isRgb ? 0 : 6;
-        c->yuvTable = av_malloc(1024 * 3);
+        ALLOC_YUV_TABLE(1024 * 3);
         y_table     = c->yuvTable;
         yb = -(384 << 16) - oy;
         for (i = 0; i < 1024 - 38; i++) {
@@ -800,7 +806,7 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
         rbase       = isRgb ? 8 : 0;
         gbase       = 4;
         bbase       = isRgb ? 0 : 8;
-        c->yuvTable = av_malloc(1024 * 3 * 2);
+        ALLOC_YUV_TABLE(1024 * 3 * 2);
         y_table16   = c->yuvTable;
         yb = -(384 << 16) - oy;
         for (i = 0; i < 1024; i++) {
@@ -823,7 +829,7 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
         rbase       = isRgb ? bpp - 5 : 0;
         gbase       = 5;
         bbase       = isRgb ? 0 : (bpp - 5);
-        c->yuvTable = av_malloc(1024 * 3 * 2);
+        ALLOC_YUV_TABLE(1024 * 3 * 2);
         y_table16   = c->yuvTable;
         yb = -(384 << 16) - oy;
         for (i = 0; i < 1024; i++) {
@@ -843,7 +849,7 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
         break;
     case 24:
     case 48:
-        c->yuvTable = av_malloc(1024);
+        ALLOC_YUV_TABLE(1024);
         y_table     = c->yuvTable;
         yb = -(384 << 16) - oy;
         for (i = 0; i < 1024; i++) {
@@ -864,7 +870,7 @@ av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
         needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
         if (!needAlpha)
             abase = (base + 24) & 31;
-        c->yuvTable = av_malloc(1024 * 3 * 4);
+        ALLOC_YUV_TABLE(1024 * 3 * 4);
         y_table32   = c->yuvTable;
         yb = -(384 << 16) - oy;
         for (i = 0; i < 1024; i++) {