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/*
* Copyright (c) 2024 The WebM 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 <climits>
#include "vpx/vpx_image.h"
#include "third_party/googletest/src/include/gtest/gtest.h"
TEST(VpxImageTest, VpxImgWrapInvalidAlign) {
const int kWidth = 128;
const int kHeight = 128;
unsigned char buf[kWidth * kHeight * 3];
vpx_image_t img;
// Set img_data and img_data_owner to junk values. vpx_img_wrap() should
// not read these values on failure.
unsigned char empty[] = "";
img.img_data = empty;
img.img_data_owner = 1;
vpx_img_fmt_t format = VPX_IMG_FMT_I444;
// 'align' must be a power of 2 but is not. This causes the vpx_img_wrap()
// call to fail. The test verifies we do not read the junk values in 'img'.
unsigned int align = 31;
EXPECT_EQ(vpx_img_wrap(&img, format, kWidth, kHeight, align, buf), nullptr);
}
TEST(VpxImageTest, VpxImgSetRectOverflow) {
const int kWidth = 128;
const int kHeight = 128;
unsigned char buf[kWidth * kHeight * 3];
vpx_image_t img;
vpx_img_fmt_t format = VPX_IMG_FMT_I444;
unsigned int align = 32;
EXPECT_EQ(vpx_img_wrap(&img, format, kWidth, kHeight, align, buf), &img);
EXPECT_EQ(vpx_img_set_rect(&img, 0, 0, kWidth, kHeight), 0);
// This would result in overflow because -1 is cast to UINT_MAX.
EXPECT_NE(vpx_img_set_rect(&img, static_cast<unsigned int>(-1),
static_cast<unsigned int>(-1), kWidth, kHeight),
0);
}
TEST(VpxImageTest, VpxImgAllocNone) {
const int kWidth = 128;
const int kHeight = 128;
vpx_image_t img;
vpx_img_fmt_t format = VPX_IMG_FMT_NONE;
unsigned int align = 32;
ASSERT_EQ(vpx_img_alloc(&img, format, kWidth, kHeight, align), nullptr);
}
TEST(VpxImageTest, VpxImgAllocNv12) {
const int kWidth = 128;
const int kHeight = 128;
vpx_image_t img;
vpx_img_fmt_t format = VPX_IMG_FMT_NV12;
unsigned int align = 32;
EXPECT_EQ(vpx_img_alloc(&img, format, kWidth, kHeight, align), &img);
EXPECT_EQ(img.stride[VPX_PLANE_U], img.stride[VPX_PLANE_Y]);
EXPECT_EQ(img.stride[VPX_PLANE_V], img.stride[VPX_PLANE_U]);
EXPECT_EQ(img.planes[VPX_PLANE_V], img.planes[VPX_PLANE_U] + 1);
vpx_img_free(&img);
}
TEST(VpxImageTest, VpxImgAllocHugeWidth) {
// The stride (0x80000000 * 2) would overflow unsigned int.
vpx_image_t *image =
vpx_img_alloc(nullptr, VPX_IMG_FMT_I42016, 0x80000000, 1, 1);
ASSERT_EQ(image, nullptr);
// The stride (0x80000000) would overflow int.
image = vpx_img_alloc(nullptr, VPX_IMG_FMT_I420, 0x80000000, 1, 1);
ASSERT_EQ(image, nullptr);
// The aligned width (UINT_MAX + 1) would overflow unsigned int.
image = vpx_img_alloc(nullptr, VPX_IMG_FMT_I420, UINT_MAX, 1, 1);
ASSERT_EQ(image, nullptr);
image = vpx_img_alloc(nullptr, VPX_IMG_FMT_I420, 0x7ffffffe, 1, 1);
if (image) {
vpx_img_free(image);
}
image = vpx_img_alloc(nullptr, VPX_IMG_FMT_I420, 285245883, 64, 1);
if (image) {
vpx_img_free(image);
}
image = vpx_img_alloc(nullptr, VPX_IMG_FMT_NV12, 285245883, 64, 1);
if (image) {
vpx_img_free(image);
}
image = vpx_img_alloc(nullptr, VPX_IMG_FMT_YV12, 285245883, 64, 1);
if (image) {
vpx_img_free(image);
}
image = vpx_img_alloc(nullptr, VPX_IMG_FMT_I42016, 65536, 2, 1);
if (image) {
uint16_t *y_plane =
reinterpret_cast<uint16_t *>(image->planes[VPX_PLANE_Y]);
y_plane[0] = 0;
y_plane[image->d_w - 1] = 0;
vpx_img_free(image);
}
image = vpx_img_alloc(nullptr, VPX_IMG_FMT_I42016, 285245883, 2, 1);
if (image) {
uint16_t *y_plane =
reinterpret_cast<uint16_t *>(image->planes[VPX_PLANE_Y]);
y_plane[0] = 0;
y_plane[image->d_w - 1] = 0;
vpx_img_free(image);
}
}