зеркало из https://github.com/mozilla/gecko-dev.git
100 строки
3.5 KiB
Diff
100 строки
3.5 KiB
Diff
diff --git a/gfx/ycbcr/yuv_convert.cpp b/gfx/ycbcr/yuv_convert.cpp
|
|
index c291d5c..ff7267e 100644
|
|
--- a/gfx/ycbcr/yuv_convert.cpp
|
|
+++ b/gfx/ycbcr/yuv_convert.cpp
|
|
@@ -25,42 +25,58 @@ namespace mozilla {
|
|
|
|
namespace gfx {
|
|
|
|
// Convert a frame of YUV to 32 bit ARGB.
|
|
void ConvertYCbCrToRGB32(const uint8* y_buf,
|
|
const uint8* u_buf,
|
|
const uint8* v_buf,
|
|
uint8* rgb_buf,
|
|
- int width,
|
|
- int height,
|
|
+ int pic_x,
|
|
+ int pic_y,
|
|
+ int pic_width,
|
|
+ int pic_height,
|
|
int y_pitch,
|
|
int uv_pitch,
|
|
int rgb_pitch,
|
|
YUVType yuv_type) {
|
|
unsigned int y_shift = yuv_type;
|
|
bool has_mmx = supports_mmx();
|
|
- for (int y = 0; y < height; ++y) {
|
|
- uint8* rgb_row = rgb_buf + y * rgb_pitch;
|
|
- const uint8* y_ptr = y_buf + y * y_pitch;
|
|
- const uint8* u_ptr = u_buf + (y >> y_shift) * uv_pitch;
|
|
- const uint8* v_ptr = v_buf + (y >> y_shift) * uv_pitch;
|
|
+ bool odd_pic_x = pic_x % 2 != 0;
|
|
+ int x_width = odd_pic_x ? pic_width - 1 : pic_width;
|
|
+
|
|
+ for (int y = pic_y; y < pic_height + pic_y; ++y) {
|
|
+ uint8* rgb_row = rgb_buf + (y - pic_y) * rgb_pitch;
|
|
+ const uint8* y_ptr = y_buf + y * y_pitch + pic_x;
|
|
+ const uint8* u_ptr = u_buf + (y >> y_shift) * uv_pitch + (pic_x >> 1);
|
|
+ const uint8* v_ptr = v_buf + (y >> y_shift) * uv_pitch + (pic_x >> 1);
|
|
+
|
|
+ if (odd_pic_x) {
|
|
+ // Handle the single odd pixel manually and use the
|
|
+ // fast routines for the remaining.
|
|
+ FastConvertYUVToRGB32Row_C(y_ptr++,
|
|
+ u_ptr++,
|
|
+ v_ptr++,
|
|
+ rgb_row,
|
|
+ 1);
|
|
+ rgb_row += 4;
|
|
+ }
|
|
|
|
if (has_mmx)
|
|
FastConvertYUVToRGB32Row(y_ptr,
|
|
u_ptr,
|
|
v_ptr,
|
|
rgb_row,
|
|
- width);
|
|
+ x_width);
|
|
else
|
|
FastConvertYUVToRGB32Row_C(y_ptr,
|
|
u_ptr,
|
|
v_ptr,
|
|
rgb_row,
|
|
- width);
|
|
+ x_width);
|
|
}
|
|
|
|
// MMX used for FastConvertYUVToRGB32Row requires emms instruction.
|
|
if (has_mmx)
|
|
EMMS();
|
|
}
|
|
|
|
// Scale a frame of YUV to 32 bit ARGB.
|
|
diff --git a/gfx/ycbcr/yuv_convert.h b/gfx/ycbcr/yuv_convert.h
|
|
index 9d148a6..77ca8e6 100644
|
|
--- a/gfx/ycbcr/yuv_convert.h
|
|
+++ b/gfx/ycbcr/yuv_convert.h
|
|
@@ -32,18 +32,20 @@ enum Rotate {
|
|
};
|
|
|
|
// Convert a frame of YUV to 32 bit ARGB.
|
|
// Pass in YV16/YV12 depending on source format
|
|
void ConvertYCbCrToRGB32(const uint8* yplane,
|
|
const uint8* uplane,
|
|
const uint8* vplane,
|
|
uint8* rgbframe,
|
|
- int frame_width,
|
|
- int frame_height,
|
|
+ int pic_x,
|
|
+ int pic_y,
|
|
+ int pic_width,
|
|
+ int pic_height,
|
|
int ystride,
|
|
int uvstride,
|
|
int rgbstride,
|
|
YUVType yuv_type);
|
|
|
|
// Scale a frame of YUV to 32 bit ARGB.
|
|
// Supports rotation and mirroring.
|
|
void ScaleYCbCrToRGB32(const uint8* yplane,
|