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images: support 24 bit pcx images

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This commit is contained in:
Denis Pauk 2024-07-11 23:37:15 +03:00
parent 66da110472
commit 84e461e07b
1 changed files with 41 additions and 6 deletions
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39
src/client/vid/image.c
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@ -223,8 +223,11 @@ PCX_Decode(const char *name, const byte *raw, int len, byte **pic, byte **palett
pcx_width = pcx->xmax - pcx->xmin;
pcx_height = pcx->ymax - pcx->ymin;
if ((pcx->manufacturer != 0x0a) || (pcx->version != 5) ||
(pcx->encoding != 1) || (pcx->bits_per_pixel != 8))
if ((pcx->manufacturer != 0x0a) ||
(pcx->version != 5) ||
(pcx->encoding != 1) ||
((pcx->color_planes != 1) && (pcx->color_planes != 3)) ||
(pcx->bits_per_pixel != 8))
{
Com_Printf("%s: Bad pcx file %s\n", __func__, name);
return;
@ -237,6 +240,12 @@ PCX_Decode(const char *name, const byte *raw, int len, byte **pic, byte **palett
}
full_size = (pcx_height + 1) * (pcx_width + 1);
if (pcx->color_planes == 3)
{
full_size *= 4;
*bitesPerPixel = 32;
}
out = malloc(full_size);
if (!out)
{
@ -277,12 +286,38 @@ PCX_Decode(const char *name, const byte *raw, int len, byte **pic, byte **palett
*height = pcx_height + 1;
}
if (pcx->color_planes == 3)
{
int x, y;
byte *line;
line = malloc(pcx->bytes_per_line * pcx->color_planes);
for (y = 0; y <= pcx_height; y++, pix += (pcx_width + 1) * 4)
{
raw = PCX_RLE_Decode(line, line + (pcx_width + 1) * pcx->color_planes,
raw, (byte *)pcx + len,
pcx->bytes_per_line * pcx->color_planes);
for (x = 0; x < pcx_width + 1; x++) {
pix[4 * x + 0] = line[x];
pix[4 * x + 1] = line[x + pcx->bytes_per_line];
pix[4 * x + 2] = line[x + pcx->bytes_per_line * 2];
pix[4 * x + 3] = 255;
}
}
free(line);
}
else
{
for (y = 0; y <= pcx_height; y++, pix += pcx_width + 1)
{
raw = PCX_RLE_Decode(pix, pix + pcx_width + 1,
raw, (byte *)pcx + len,
pcx->bytes_per_line);
}
}
if (raw - (byte *)pcx > len)
{