Welcome to mirror list, hosted at ThFree Co, Russian Federation.

git.blender.org/blender.git - Unnamed repository; edit this file 'description' to name the repository.
summaryrefslogtreecommitdiff
path: root/source/blender/imbuf/intern/png.c
diff options
context:
space:
mode:
Diffstat (limited to 'source/blender/imbuf/intern/png.c')
-rw-r--r--source/blender/imbuf/intern/png.c54
1 files changed, 27 insertions, 27 deletions
diff --git a/source/blender/imbuf/intern/png.c b/source/blender/imbuf/intern/png.c
index dded0f7aecf..857f72e10eb 100644
--- a/source/blender/imbuf/intern/png.c
+++ b/source/blender/imbuf/intern/png.c
@@ -526,7 +526,7 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
unsigned char *from, *to;
unsigned short *from16;
float *to_float;
- int i, bytesperpixel;
+ unsigned int channels;
if (imb_is_a_png(mem) == 0) return(NULL);
@@ -571,7 +571,7 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth,
&color_type, NULL, NULL, NULL);
- bytesperpixel = png_get_channels(png_ptr, info_ptr);
+ channels = png_get_channels(png_ptr, info_ptr);
switch (color_type) {
case PNG_COLOR_TYPE_RGB:
@@ -580,10 +580,10 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
case PNG_COLOR_TYPE_PALETTE:
png_set_palette_to_rgb(png_ptr);
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
- bytesperpixel = 4;
+ channels = 4;
}
else {
- bytesperpixel = 3;
+ channels = 3;
}
break;
case PNG_COLOR_TYPE_GRAY:
@@ -593,7 +593,7 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
bit_depth = 8;
if (png_get_valid(png_ptr, info_ptr, PNG_INFO_tRNS)) {
/* PNG_COLOR_TYPE_GRAY may also have alpha 'values', like with palette. */
- bytesperpixel = 2;
+ channels = 2;
}
}
break;
@@ -602,7 +602,7 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
longjmp(png_jmpbuf(png_ptr), 1);
}
- ibuf = IMB_allocImBuf(width, height, 8 * bytesperpixel, 0);
+ ibuf = IMB_allocImBuf(width, height, 8 * channels, 0);
if (ibuf) {
ibuf->ftype = IMB_FTYPE_PNG;
@@ -630,23 +630,23 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
imb_addrectfloatImBuf(ibuf);
png_set_swap(png_ptr);
- pixels16 = MEM_mallocN(ibuf->x * ibuf->y * bytesperpixel * sizeof(png_uint_16), "pixels");
- if (pixels16 == NULL) {
+ pixels16 = imb_alloc_pixels(ibuf->x, ibuf->y, channels, sizeof(png_uint_16), "pixels");
+ if (pixels16 == NULL || ibuf->rect_float == NULL) {
printf("Cannot allocate pixels array\n");
longjmp(png_jmpbuf(png_ptr), 1);
}
/* allocate memory for an array of row-pointers */
- row_pointers = (png_bytepp) MEM_mallocN(ibuf->y * sizeof(png_uint_16p), "row_pointers");
+ row_pointers = (png_bytepp) MEM_mallocN((size_t)ibuf->y * sizeof(png_uint_16p), "row_pointers");
if (row_pointers == NULL) {
printf("Cannot allocate row-pointers array\n");
longjmp(png_jmpbuf(png_ptr), 1);
}
/* set the individual row-pointers to point at the correct offsets */
- for (i = 0; i < ibuf->y; i++) {
+ for (size_t i = 0; i < ibuf->y; i++) {
row_pointers[ibuf->y - 1 - i] = (png_bytep)
- ((png_uint_16 *)pixels16 + (i * ibuf->x) * bytesperpixel);
+ ((png_uint_16 *)pixels16 + (i * ibuf->x) * channels);
}
png_read_image(png_ptr, row_pointers);
@@ -656,9 +656,9 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
to_float = ibuf->rect_float;
from16 = pixels16;
- switch (bytesperpixel) {
+ switch (channels) {
case 4:
- for (i = ibuf->x * ibuf->y; i > 0; i--) {
+ for (size_t i = (size_t)ibuf->x * (size_t)ibuf->y; i > 0; i--) {
to_float[0] = from16[0] / 65535.0;
to_float[1] = from16[1] / 65535.0;
to_float[2] = from16[2] / 65535.0;
@@ -667,7 +667,7 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
}
break;
case 3:
- for (i = ibuf->x * ibuf->y; i > 0; i--) {
+ for (size_t i = (size_t)ibuf->x * (size_t)ibuf->y; i > 0; i--) {
to_float[0] = from16[0] / 65535.0;
to_float[1] = from16[1] / 65535.0;
to_float[2] = from16[2] / 65535.0;
@@ -676,14 +676,14 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
}
break;
case 2:
- for (i = ibuf->x * ibuf->y; i > 0; i--) {
+ for (size_t i = (size_t)ibuf->x * (size_t)ibuf->y; i > 0; i--) {
to_float[0] = to_float[1] = to_float[2] = from16[0] / 65535.0;
to_float[3] = from16[1] / 65535.0;
to_float += 4; from16 += 2;
}
break;
case 1:
- for (i = ibuf->x * ibuf->y; i > 0; i--) {
+ for (size_t i = (size_t)ibuf->x * (size_t)ibuf->y; i > 0; i--) {
to_float[0] = to_float[1] = to_float[2] = from16[0] / 65535.0;
to_float[3] = 1.0;
to_float += 4; from16++;
@@ -694,23 +694,23 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
else {
imb_addrectImBuf(ibuf);
- pixels = MEM_mallocN(((size_t)ibuf->x) * ibuf->y * bytesperpixel * sizeof(unsigned char), "pixels");
- if (pixels == NULL) {
+ pixels = imb_alloc_pixels(ibuf->x, ibuf->y, channels, sizeof(unsigned char), "pixels");
+ if (pixels == NULL || ibuf->rect == NULL) {
printf("Cannot allocate pixels array\n");
longjmp(png_jmpbuf(png_ptr), 1);
}
/* allocate memory for an array of row-pointers */
- row_pointers = (png_bytepp) MEM_mallocN(ibuf->y * sizeof(png_bytep), "row_pointers");
+ row_pointers = (png_bytepp) MEM_mallocN((size_t)ibuf->y * sizeof(png_bytep), "row_pointers");
if (row_pointers == NULL) {
printf("Cannot allocate row-pointers array\n");
longjmp(png_jmpbuf(png_ptr), 1);
}
/* set the individual row-pointers to point at the correct offsets */
- for (i = 0; i < ibuf->y; i++) {
+ for (int i = 0; i < ibuf->y; i++) {
row_pointers[ibuf->y - 1 - i] = (png_bytep)
- ((unsigned char *)pixels + (((size_t)i) * ibuf->x) * bytesperpixel * sizeof(unsigned char));
+ ((unsigned char *)pixels + (((size_t)i) * ibuf->x) * channels * sizeof(unsigned char));
}
png_read_image(png_ptr, row_pointers);
@@ -720,9 +720,9 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
to = (unsigned char *) ibuf->rect;
from = pixels;
- switch (bytesperpixel) {
+ switch (channels) {
case 4:
- for (i = ibuf->x * ibuf->y; i > 0; i--) {
+ for (size_t i = (size_t)ibuf->x * (size_t)ibuf->y; i > 0; i--) {
to[0] = from[0];
to[1] = from[1];
to[2] = from[2];
@@ -731,7 +731,7 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
}
break;
case 3:
- for (i = ibuf->x * ibuf->y; i > 0; i--) {
+ for (size_t i = (size_t)ibuf->x * (size_t)ibuf->y; i > 0; i--) {
to[0] = from[0];
to[1] = from[1];
to[2] = from[2];
@@ -740,14 +740,14 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
}
break;
case 2:
- for (i = ibuf->x * ibuf->y; i > 0; i--) {
+ for (size_t i = (size_t)ibuf->x * (size_t)ibuf->y; i > 0; i--) {
to[0] = to[1] = to[2] = from[0];
to[3] = from[1];
to += 4; from += 2;
}
break;
case 1:
- for (i = ibuf->x * ibuf->y; i > 0; i--) {
+ for (size_t i = (size_t)ibuf->x * (size_t)ibuf->y; i > 0; i--) {
to[0] = to[1] = to[2] = from[0];
to[3] = 0xff;
to += 4; from++;
@@ -759,7 +759,7 @@ ImBuf *imb_loadpng(const unsigned char *mem, size_t size, int flags, char colors
if (flags & IB_metadata) {
png_text *text_chunks;
int count = png_get_text(png_ptr, info_ptr, &text_chunks, NULL);
- for (i = 0; i < count; i++) {
+ for (int i = 0; i < count; i++) {
IMB_metadata_add_field(ibuf, text_chunks[i].key, text_chunks[i].text);
ibuf->flags |= IB_metadata;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-30 09:52:46 +0300