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Issue #2118 - Part 2: Add support for Identity YUVColorSpace

Browse source 
https://hg.mozilla.org/mozilla-central/rev/be342c90755d11551623362f2058c0326f63bbb3
This commit is contained in:
u3shit 2023-02-24 19:52:57 +01:00 • committed by roytam1
commit 3e62b1fc9f
6 changed files with 97 additions and 7 deletions
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52
gfx/ycbcr/yuv_convert.cpp
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@ -24,6 +24,7 @@
// Header for low level row functions.
#include "yuv_row.h"
#include "mozilla/SSE.h"
#include "mozilla/IntegerRange.h"
namespace mozilla {
@ -63,6 +64,23 @@ libyuv::FourCC FourCCFromYUVType(YUVType aYUVType)
}
}
void GBRPlanarToARGB(const uint8_t* src_y, int y_pitch,
const uint8_t* src_u, int u_pitch,
const uint8_t* src_v, int v_pitch,
uint8_t* rgb_buf, int rgb_pitch,
int pic_width, int pic_height) {
// libyuv has no native conversion function for this
// fixme: replace with something less awful
for (const auto row : MakeRange(pic_height)) {
for (const auto col : MakeRange(pic_width)) {
rgb_buf[rgb_pitch * row + col * 4 + 0] = src_u[u_pitch * row + col];
rgb_buf[rgb_pitch * row + col * 4 + 1] = src_y[y_pitch * row + col];
rgb_buf[rgb_pitch * row + col * 4 + 2] = src_v[v_pitch * row + col];
rgb_buf[rgb_pitch * row + col * 4 + 3] = 255;
}
}
}
// Convert a frame of YUV to 32 bit ARGB.
void ConvertYCbCrToRGB32(const uint8* y_buf,
const uint8* u_buf,
@ -106,12 +124,19 @@ void ConvertYCbCrToRGB32(const uint8* y_buf,
const uint8* src_y = y_buf + y_pitch * pic_y + pic_x;
const uint8* src_u = u_buf + uv_pitch * pic_y + pic_x;
const uint8* src_v = v_buf + uv_pitch * pic_y + pic_x;
DebugOnly<int> err = libyuv::I444ToARGB(src_y, y_pitch,
src_u, uv_pitch,
src_v, uv_pitch,
rgb_buf, rgb_pitch,
pic_width, pic_height);
MOZ_ASSERT(!err);
if (yuv_color_space == YUVColorSpace::IDENTITY) {
// Special case for RGB image
GBRPlanarToARGB(src_y, y_pitch, src_u, uv_pitch, src_v, uv_pitch,
rgb_buf, rgb_pitch, pic_width, pic_height);
return;
} else {
DebugOnly<int> err = libyuv::I444ToARGB(src_y, y_pitch,
src_u, uv_pitch,
src_v, uv_pitch,
rgb_buf, rgb_pitch,
pic_width, pic_height);
MOZ_ASSERT(!err);
}
} else if (yuv_type == YV16) {
const uint8* src_y = y_buf + y_pitch * pic_y + pic_x;
const uint8* src_u = u_buf + uv_pitch * pic_y + pic_x / 2;
@ -301,6 +326,21 @@ void ScaleYCbCrToRGB32(const uint8* y_buf,
return;
}
if (yuv_type == YV24 && yuv_color_space == YUVColorSpace::IDENTITY) {
auto buffer = MakeUnique<uint8[]>(source_width * source_height * 4);
auto buffer_pitch = source_width * 4;
GBRPlanarToARGB(y_buf, y_pitch, u_buf, uv_pitch, v_buf, uv_pitch,
buffer.get(), buffer_pitch, source_width, source_height);
DebugOnly<int> err =
libyuv::ARGBScale(buffer.get(), buffer_pitch,
source_width, source_height,
rgb_buf, rgb_pitch,
width, height,
libyuv::kFilterBilinear);
MOZ_ASSERT(!err);
return;
}
DebugOnly<int> err =
libyuv::YUVToARGBScale(y_buf, y_pitch,
u_buf, uv_pitch,