summaryrefslogtreecommitdiffstats
path: root/src/3rdparty/libwebp/src/dec
diff options
context:
space:
mode:
Diffstat (limited to 'src/3rdparty/libwebp/src/dec')
-rw-r--r--src/3rdparty/libwebp/src/dec/buffer.c22
-rw-r--r--src/3rdparty/libwebp/src/dec/io.c32
-rw-r--r--src/3rdparty/libwebp/src/dec/vp8i.h2
-rw-r--r--src/3rdparty/libwebp/src/dec/vp8l.c15
4 files changed, 34 insertions, 37 deletions
diff --git a/src/3rdparty/libwebp/src/dec/buffer.c b/src/3rdparty/libwebp/src/dec/buffer.c
index 42feac7..2129312 100644
--- a/src/3rdparty/libwebp/src/dec/buffer.c
+++ b/src/3rdparty/libwebp/src/dec/buffer.c
@@ -33,6 +33,11 @@ static int IsValidColorspace(int webp_csp_mode) {
return (webp_csp_mode >= MODE_RGB && webp_csp_mode < MODE_LAST);
}
+// strictly speaking, the very last (or first, if flipped) row
+// doesn't require padding.
+#define MIN_BUFFER_SIZE(WIDTH, HEIGHT, STRIDE) \
+ (uint64_t)(STRIDE) * ((HEIGHT) - 1) + (WIDTH)
+
static VP8StatusCode CheckDecBuffer(const WebPDecBuffer* const buffer) {
int ok = 1;
const WEBP_CSP_MODE mode = buffer->colorspace;
@@ -42,20 +47,22 @@ static VP8StatusCode CheckDecBuffer(const WebPDecBuffer* const buffer) {
ok = 0;
} else if (!WebPIsRGBMode(mode)) { // YUV checks
const WebPYUVABuffer* const buf = &buffer->u.YUVA;
+ const int uv_width = (width + 1) / 2;
+ const int uv_height = (height + 1) / 2;
const int y_stride = abs(buf->y_stride);
const int u_stride = abs(buf->u_stride);
const int v_stride = abs(buf->v_stride);
const int a_stride = abs(buf->a_stride);
- const uint64_t y_size = (uint64_t)y_stride * height;
- const uint64_t u_size = (uint64_t)u_stride * ((height + 1) / 2);
- const uint64_t v_size = (uint64_t)v_stride * ((height + 1) / 2);
- const uint64_t a_size = (uint64_t)a_stride * height;
+ const uint64_t y_size = MIN_BUFFER_SIZE(width, height, y_stride);
+ const uint64_t u_size = MIN_BUFFER_SIZE(uv_width, uv_height, u_stride);
+ const uint64_t v_size = MIN_BUFFER_SIZE(uv_width, uv_height, v_stride);
+ const uint64_t a_size = MIN_BUFFER_SIZE(width, height, a_stride);
ok &= (y_size <= buf->y_size);
ok &= (u_size <= buf->u_size);
ok &= (v_size <= buf->v_size);
ok &= (y_stride >= width);
- ok &= (u_stride >= (width + 1) / 2);
- ok &= (v_stride >= (width + 1) / 2);
+ ok &= (u_stride >= uv_width);
+ ok &= (v_stride >= uv_width);
ok &= (buf->y != NULL);
ok &= (buf->u != NULL);
ok &= (buf->v != NULL);
@@ -67,13 +74,14 @@ static VP8StatusCode CheckDecBuffer(const WebPDecBuffer* const buffer) {
} else { // RGB checks
const WebPRGBABuffer* const buf = &buffer->u.RGBA;
const int stride = abs(buf->stride);
- const uint64_t size = (uint64_t)stride * height;
+ const uint64_t size = MIN_BUFFER_SIZE(width, height, stride);
ok &= (size <= buf->size);
ok &= (stride >= width * kModeBpp[mode]);
ok &= (buf->rgba != NULL);
}
return ok ? VP8_STATUS_OK : VP8_STATUS_INVALID_PARAM;
}
+#undef MIN_BUFFER_SIZE
static VP8StatusCode AllocateBuffer(WebPDecBuffer* const buffer) {
const int w = buffer->width;
diff --git a/src/3rdparty/libwebp/src/dec/io.c b/src/3rdparty/libwebp/src/dec/io.c
index 8094e44..b2e72f0 100644
--- a/src/3rdparty/libwebp/src/dec/io.c
+++ b/src/3rdparty/libwebp/src/dec/io.c
@@ -322,37 +322,31 @@ static int InitYUVRescaler(const VP8Io* const io, WebPDecParams* const p) {
const size_t work_size = 2 * out_width; // scratch memory for luma rescaler
const size_t uv_work_size = 2 * uv_out_width; // and for each u/v ones
size_t tmp_size;
- int32_t* work;
+ rescaler_t* work;
tmp_size = (work_size + 2 * uv_work_size) * sizeof(*work);
if (has_alpha) {
tmp_size += work_size * sizeof(*work);
}
- p->memory = WebPSafeCalloc(1ULL, tmp_size);
+ p->memory = WebPSafeMalloc(1ULL, tmp_size);
if (p->memory == NULL) {
return 0; // memory error
}
- work = (int32_t*)p->memory;
+ work = (rescaler_t*)p->memory;
WebPRescalerInit(&p->scaler_y, io->mb_w, io->mb_h,
buf->y, out_width, out_height, buf->y_stride, 1,
- io->mb_w, out_width, io->mb_h, out_height,
work);
WebPRescalerInit(&p->scaler_u, uv_in_width, uv_in_height,
buf->u, uv_out_width, uv_out_height, buf->u_stride, 1,
- uv_in_width, uv_out_width,
- uv_in_height, uv_out_height,
work + work_size);
WebPRescalerInit(&p->scaler_v, uv_in_width, uv_in_height,
buf->v, uv_out_width, uv_out_height, buf->v_stride, 1,
- uv_in_width, uv_out_width,
- uv_in_height, uv_out_height,
work + work_size + uv_work_size);
p->emit = EmitRescaledYUV;
if (has_alpha) {
WebPRescalerInit(&p->scaler_a, io->mb_w, io->mb_h,
buf->a, out_width, out_height, buf->a_stride, 1,
- io->mb_w, out_width, io->mb_h, out_height,
work + work_size + 2 * uv_work_size);
p->emit_alpha = EmitRescaledAlphaYUV;
WebPInitAlphaProcessing();
@@ -375,9 +369,9 @@ static int ExportRGB(WebPDecParams* const p, int y_pos) {
WebPRescalerHasPendingOutput(&p->scaler_u)) {
assert(p->last_y + y_pos + num_lines_out < p->output->height);
assert(p->scaler_u.y_accum == p->scaler_v.y_accum);
- WebPRescalerExportRow(&p->scaler_y, 0);
- WebPRescalerExportRow(&p->scaler_u, 0);
- WebPRescalerExportRow(&p->scaler_v, 0);
+ WebPRescalerExportRow(&p->scaler_y);
+ WebPRescalerExportRow(&p->scaler_u);
+ WebPRescalerExportRow(&p->scaler_v);
convert(p->scaler_y.dst, p->scaler_u.dst, p->scaler_v.dst,
dst, p->scaler_y.dst_width);
dst += buf->stride;
@@ -425,7 +419,7 @@ static int ExportAlpha(WebPDecParams* const p, int y_pos) {
while (WebPRescalerHasPendingOutput(&p->scaler_a)) {
int i;
assert(p->last_y + y_pos + num_lines_out < p->output->height);
- WebPRescalerExportRow(&p->scaler_a, 0);
+ WebPRescalerExportRow(&p->scaler_a);
for (i = 0; i < width; ++i) {
const uint32_t alpha_value = p->scaler_a.dst[i];
dst[4 * i] = alpha_value;
@@ -458,7 +452,7 @@ static int ExportAlphaRGBA4444(WebPDecParams* const p, int y_pos) {
while (WebPRescalerHasPendingOutput(&p->scaler_a)) {
int i;
assert(p->last_y + y_pos + num_lines_out < p->output->height);
- WebPRescalerExportRow(&p->scaler_a, 0);
+ WebPRescalerExportRow(&p->scaler_a);
for (i = 0; i < width; ++i) {
// Fill in the alpha value (converted to 4 bits).
const uint32_t alpha_value = p->scaler_a.dst[i] >> 4;
@@ -495,7 +489,7 @@ static int InitRGBRescaler(const VP8Io* const io, WebPDecParams* const p) {
const int uv_in_width = (io->mb_w + 1) >> 1;
const int uv_in_height = (io->mb_h + 1) >> 1;
const size_t work_size = 2 * out_width; // scratch memory for one rescaler
- int32_t* work; // rescalers work area
+ rescaler_t* work; // rescalers work area
uint8_t* tmp; // tmp storage for scaled YUV444 samples before RGB conversion
size_t tmp_size1, tmp_size2, total_size;
@@ -506,30 +500,26 @@ static int InitRGBRescaler(const VP8Io* const io, WebPDecParams* const p) {
tmp_size2 += out_width;
}
total_size = tmp_size1 * sizeof(*work) + tmp_size2 * sizeof(*tmp);
- p->memory = WebPSafeCalloc(1ULL, total_size);
+ p->memory = WebPSafeMalloc(1ULL, total_size);
if (p->memory == NULL) {
return 0; // memory error
}
- work = (int32_t*)p->memory;
+ work = (rescaler_t*)p->memory;
tmp = (uint8_t*)(work + tmp_size1);
WebPRescalerInit(&p->scaler_y, io->mb_w, io->mb_h,
tmp + 0 * out_width, out_width, out_height, 0, 1,
- io->mb_w, out_width, io->mb_h, out_height,
work + 0 * work_size);
WebPRescalerInit(&p->scaler_u, uv_in_width, uv_in_height,
tmp + 1 * out_width, out_width, out_height, 0, 1,
- io->mb_w, 2 * out_width, io->mb_h, 2 * out_height,
work + 1 * work_size);
WebPRescalerInit(&p->scaler_v, uv_in_width, uv_in_height,
tmp + 2 * out_width, out_width, out_height, 0, 1,
- io->mb_w, 2 * out_width, io->mb_h, 2 * out_height,
work + 2 * work_size);
p->emit = EmitRescaledRGB;
if (has_alpha) {
WebPRescalerInit(&p->scaler_a, io->mb_w, io->mb_h,
tmp + 3 * out_width, out_width, out_height, 0, 1,
- io->mb_w, out_width, io->mb_h, out_height,
work + 3 * work_size);
p->emit_alpha = EmitRescaledAlphaRGB;
if (p->output->colorspace == MODE_RGBA_4444 ||
diff --git a/src/3rdparty/libwebp/src/dec/vp8i.h b/src/3rdparty/libwebp/src/dec/vp8i.h
index a02d9ff..0e6c8f5 100644
--- a/src/3rdparty/libwebp/src/dec/vp8i.h
+++ b/src/3rdparty/libwebp/src/dec/vp8i.h
@@ -31,7 +31,7 @@ extern "C" {
// version numbers
#define DEC_MAJ_VERSION 0
#define DEC_MIN_VERSION 4
-#define DEC_REV_VERSION 3
+#define DEC_REV_VERSION 4
// intra prediction modes
enum { B_DC_PRED = 0, // 4x4 modes
diff --git a/src/3rdparty/libwebp/src/dec/vp8l.c b/src/3rdparty/libwebp/src/dec/vp8l.c
index e2780e5..2fa5f40 100644
--- a/src/3rdparty/libwebp/src/dec/vp8l.c
+++ b/src/3rdparty/libwebp/src/dec/vp8l.c
@@ -390,13 +390,13 @@ static int AllocateAndInitRescaler(VP8LDecoder* const dec, VP8Io* const io) {
const int in_height = io->mb_h;
const int out_height = io->scaled_height;
const uint64_t work_size = 2 * num_channels * (uint64_t)out_width;
- int32_t* work; // Rescaler work area.
- const uint64_t scaled_data_size = num_channels * (uint64_t)out_width;
+ rescaler_t* work; // Rescaler work area.
+ const uint64_t scaled_data_size = (uint64_t)out_width;
uint32_t* scaled_data; // Temporary storage for scaled BGRA data.
const uint64_t memory_size = sizeof(*dec->rescaler) +
work_size * sizeof(*work) +
scaled_data_size * sizeof(*scaled_data);
- uint8_t* memory = (uint8_t*)WebPSafeCalloc(memory_size, sizeof(*memory));
+ uint8_t* memory = (uint8_t*)WebPSafeMalloc(memory_size, sizeof(*memory));
if (memory == NULL) {
dec->status_ = VP8_STATUS_OUT_OF_MEMORY;
return 0;
@@ -406,13 +406,12 @@ static int AllocateAndInitRescaler(VP8LDecoder* const dec, VP8Io* const io) {
dec->rescaler = (WebPRescaler*)memory;
memory += sizeof(*dec->rescaler);
- work = (int32_t*)memory;
+ work = (rescaler_t*)memory;
memory += work_size * sizeof(*work);
scaled_data = (uint32_t*)memory;
WebPRescalerInit(dec->rescaler, in_width, in_height, (uint8_t*)scaled_data,
- out_width, out_height, 0, num_channels,
- in_width, out_width, in_height, out_height, work);
+ out_width, out_height, 0, num_channels, work);
return 1;
}
@@ -427,7 +426,7 @@ static int Export(WebPRescaler* const rescaler, WEBP_CSP_MODE colorspace,
int num_lines_out = 0;
while (WebPRescalerHasPendingOutput(rescaler)) {
uint8_t* const dst = rgba + num_lines_out * rgba_stride;
- WebPRescalerExportRow(rescaler, 0);
+ WebPRescalerExportRow(rescaler);
WebPMultARGBRow(src, dst_width, 1);
VP8LConvertFromBGRA(src, dst_width, colorspace, dst);
++num_lines_out;
@@ -545,7 +544,7 @@ static int ExportYUVA(const VP8LDecoder* const dec, int y_pos) {
const int dst_width = rescaler->dst_width;
int num_lines_out = 0;
while (WebPRescalerHasPendingOutput(rescaler)) {
- WebPRescalerExportRow(rescaler, 0);
+ WebPRescalerExportRow(rescaler);
WebPMultARGBRow(src, dst_width, 1);
ConvertToYUVA(src, dst_width, y_pos, dec->output_);
++y_pos;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 19:28:36 +0000