Update
This commit is contained in:
82
3rdparty/libyuv/source/scale_rgb.cc
vendored
Normal file
82
3rdparty/libyuv/source/scale_rgb.cc
vendored
Normal file
@@ -0,0 +1,82 @@
|
||||
/*
|
||||
* Copyright 2022 The LibYuv Project Authors. All rights reserved.
|
||||
*
|
||||
* Use of this source code is governed by a BSD-style license
|
||||
* that can be found in the LICENSE file in the root of the source
|
||||
* tree. An additional intellectual property rights grant can be found
|
||||
* in the file PATENTS. All contributing project authors may
|
||||
* be found in the AUTHORS file in the root of the source tree.
|
||||
*/
|
||||
|
||||
#include "libyuv/scale.h" /* For FilterMode */
|
||||
|
||||
#include <assert.h>
|
||||
#include <limits.h>
|
||||
#include <stdint.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "libyuv/convert_argb.h"
|
||||
#include "libyuv/convert_from_argb.h"
|
||||
#include "libyuv/row.h"
|
||||
#include "libyuv/scale_argb.h"
|
||||
#include "libyuv/scale_rgb.h"
|
||||
|
||||
#ifdef __cplusplus
|
||||
namespace libyuv {
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
// Scale a 24 bit image.
|
||||
// Converts to ARGB as intermediate step
|
||||
|
||||
LIBYUV_API
|
||||
int RGBScale(const uint8_t* src_rgb,
|
||||
int src_stride_rgb,
|
||||
int src_width,
|
||||
int src_height,
|
||||
uint8_t* dst_rgb,
|
||||
int dst_stride_rgb,
|
||||
int dst_width,
|
||||
int dst_height,
|
||||
enum FilterMode filtering) {
|
||||
int r;
|
||||
if (!src_rgb || !dst_rgb || src_width <= 0 || src_width > INT_MAX / 4 ||
|
||||
src_height == 0 || dst_width <= 0 || dst_width > INT_MAX / 4 ||
|
||||
dst_height <= 0) {
|
||||
return -1;
|
||||
}
|
||||
const int abs_src_height = (src_height < 0) ? -src_height : src_height;
|
||||
const uint64_t src_argb_size = (uint64_t)src_width * abs_src_height * 4;
|
||||
const uint64_t dst_argb_size = (uint64_t)dst_width * dst_height * 4;
|
||||
if (src_argb_size > (UINT64_MAX - dst_argb_size)) {
|
||||
return -1; // Invalid size.
|
||||
}
|
||||
const uint64_t argb_size = src_argb_size + dst_argb_size;
|
||||
if (argb_size > SIZE_MAX) {
|
||||
return -1; // Invalid size.
|
||||
}
|
||||
uint8_t* src_argb = (uint8_t*)malloc((size_t)argb_size);
|
||||
if (!src_argb) {
|
||||
return 1; // Out of memory runtime error.
|
||||
}
|
||||
uint8_t* dst_argb = src_argb + (size_t)src_argb_size;
|
||||
|
||||
r = RGB24ToARGB(src_rgb, src_stride_rgb, src_argb, src_width * 4, src_width,
|
||||
src_height);
|
||||
if (!r) {
|
||||
r = ARGBScale(src_argb, src_width * 4, src_width, abs_src_height, dst_argb,
|
||||
dst_width * 4, dst_width, dst_height, filtering);
|
||||
if (!r) {
|
||||
r = ARGBToRGB24(dst_argb, dst_width * 4, dst_rgb, dst_stride_rgb,
|
||||
dst_width, dst_height);
|
||||
}
|
||||
}
|
||||
free(src_argb);
|
||||
return r;
|
||||
}
|
||||
|
||||
#ifdef __cplusplus
|
||||
} // extern "C"
|
||||
} // namespace libyuv
|
||||
#endif
|
||||
Reference in New Issue
Block a user