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Add I422ToRGB565Matrix

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The code already exists to use a specific matrix. This CL simply
adds a function to use a generic YUV matrix for the conversion.

Bug: b/241451603
Change-Id: I0eea7e96a891d045905a9c963b56c053097029ec
Reviewed-on: https://chromium-review.googlesource.com/c/libyuv/libyuv/+/3820903
Reviewed-by: Frank Barchard <fbarchard@chromium.org>
Commit-Queue: Frank Barchard <fbarchard@chromium.org>
This commit is contained in:
Vignesh Venkatasubramanian 2022-08-09 11:50:03 -07:00 committed by Frank Barchard
parent d53f1beecd
commit a5a1102a60
2 changed files with 44 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
include/libyuv/convert_argb.h
View File

@ -1907,6 +1907,20 @@ int I420ToRGB565Matrix(const uint8_t* src_y,
int width,
int height);
// Convert I422 to RGB565 with specified color matrix.
LIBYUV_API
int I422ToRGB565Matrix(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgb565,
int dst_stride_rgb565,
const struct YuvConstants* yuvconstants,
int width,
int height);
// Convert I420 to AR30 with matrix.
LIBYUV_API
int I420ToAR30Matrix(const uint8_t* src_y,

24
source/convert_argb.cc
View File

@ -5035,9 +5035,9 @@ int H420ToRGB565(const uint8_t* src_y,
&kYuvH709Constants, width, height);
}
// Convert I422 to RGB565.
// Convert I422 to RGB565 with specified color matrix.
LIBYUV_API
int I422ToRGB565(const uint8_t* src_y,
int I422ToRGB565Matrix(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
@ -5045,6 +5045,7 @@ int I422ToRGB565(const uint8_t* src_y,
int src_stride_v,
uint8_t* dst_rgb565,
int dst_stride_rgb565,
const struct YuvConstants* yuvconstants,
int width,
int height) {
int y;
@ -5103,7 +5104,7 @@ int I422ToRGB565(const uint8_t* src_y,
#endif
for (y = 0; y < height; ++y) {
I422ToRGB565Row(src_y, src_u, src_v, dst_rgb565, &kYuvI601Constants, width);
I422ToRGB565Row(src_y, src_u, src_v, dst_rgb565, yuvconstants, width);
dst_rgb565 += dst_stride_rgb565;
src_y += src_stride_y;
src_u += src_stride_u;
@ -5112,6 +5113,23 @@ int I422ToRGB565(const uint8_t* src_y,
return 0;
}
// Convert I422 to RGB565.
LIBYUV_API
int I422ToRGB565(const uint8_t* src_y,
int src_stride_y,
const uint8_t* src_u,
int src_stride_u,
const uint8_t* src_v,
int src_stride_v,
uint8_t* dst_rgb565,
int dst_stride_rgb565,
int width,
int height) {
return I422ToRGB565Matrix(src_y, src_stride_y, src_u, src_stride_u, src_v,
src_stride_v, dst_rgb565, dst_stride_rgb565,
&kYuvI601Constants, width, height);
}
// Ordered 8x8 dither for 888 to 565. Values from 0 to 7.
static const uint8_t kDither565_4x4[16] = {
0, 4, 1, 5, 6, 2, 7, 3, 1, 5, 0, 4, 7, 3, 6, 2,