else
a[x++] = dataByte;
}
+ fin += pcx.bytes_per_line - image_width; // the number of bytes per line is always forced to an even number
while(x < image_width)
a[x++] = 0;
}
*/
qbyte *LoadTGA (qbyte *f, int matchwidth, int matchheight)
{
- int columns, rows, row, column;
+ int x, y, row_inc;
+ unsigned char red, green, blue, alpha, run, runlen;
qbyte *pixbuf, *image_rgba, *fin, *enddata;
if (loadsize < 18+3)
enddata = f + loadsize;
- columns = targa_header.width;
- rows = targa_header.height;
+ image_width = targa_header.width;
+ image_height = targa_header.height;
- image_rgba = Mem_Alloc(tempmempool, columns * rows * 4);
+ image_rgba = Mem_Alloc(tempmempool, image_width * image_height * 4);
if (!image_rgba)
{
- Con_Printf ("LoadTGA: not enough memory for %i by %i image\n", columns, rows);
+ Con_Printf ("LoadTGA: not enough memory for %i by %i image\n", image_width, image_height);
return NULL;
}
if (targa_header.id_length != 0)
fin += targa_header.id_length; // skip TARGA image comment
+ // If bit 5 of attributes isn't set, the image has been stored from bottom to top
+ if ((targa_header.attributes & 0x20) == 0)
+ {
+ pixbuf = image_rgba + (image_height - 1)*image_width*4;
+ row_inc = -image_width*4*2;
+ }
+ else
+ {
+ pixbuf = image_rgba;
+ row_inc = 0;
+ }
+
if (targa_header.image_type == 2)
{
// Uncompressed, RGB images
- for(row = rows - 1;row >= 0;row--)
+ if (targa_header.pixel_size == 24)
{
- pixbuf = image_rgba + row*columns*4;
- for(column = 0;column < columns;column++)
+ if (fin + image_width * image_height * 3 <= enddata)
{
- switch (targa_header.pixel_size)
+ for(y = 0;y < image_height;y++)
{
- case 24:
- if (fin + 3 > enddata)
- break;
- *pixbuf++ = fin[2];
- *pixbuf++ = fin[1];
- *pixbuf++ = fin[0];
- *pixbuf++ = 255;
- fin += 3;
- break;
- case 32:
- if (fin + 4 > enddata)
- break;
- *pixbuf++ = fin[2];
- *pixbuf++ = fin[1];
- *pixbuf++ = fin[0];
- *pixbuf++ = fin[3];
- fin += 4;
- break;
+ for(x = 0;x < image_width;x++)
+ {
+ *pixbuf++ = fin[2];
+ *pixbuf++ = fin[1];
+ *pixbuf++ = fin[0];
+ *pixbuf++ = 255;
+ fin += 3;
+ }
+ pixbuf += row_inc;
+ }
+ }
+ }
+ else
+ {
+ if (fin + image_width * image_height * 4 <= enddata)
+ {
+ for(y = 0;y < image_height;y++)
+ {
+ for(x = 0;x < image_width;x++)
+ {
+ *pixbuf++ = fin[2];
+ *pixbuf++ = fin[1];
+ *pixbuf++ = fin[0];
+ *pixbuf++ = fin[3];
+ fin += 4;
+ }
+ pixbuf += row_inc;
}
}
}
else if (targa_header.image_type==10)
{
// Runlength encoded RGB images
- unsigned char red = 0, green = 0, blue = 0, alphabyte = 0, packetHeader, packetSize, j;
- for(row = rows - 1;row >= 0;row--)
+ x = 0;
+ y = 0;
+ while (y < image_height && fin < enddata)
{
- pixbuf = image_rgba + row * columns * 4;
- for(column = 0;column < columns;)
+ runlen = *fin++;
+ if (runlen & 0x80)
{
- if (fin >= enddata)
- goto outofdata;
- packetHeader = *fin++;
- packetSize = 1 + (packetHeader & 0x7f);
- if (packetHeader & 0x80)
+ // RLE compressed run
+ runlen = 1 + (runlen & 0x7f);
+ if (targa_header.pixel_size == 24)
{
- // run-length packet
- switch (targa_header.pixel_size)
- {
- case 24:
- if (fin + 3 > enddata)
- goto outofdata;
- blue = *fin++;
- green = *fin++;
- red = *fin++;
- alphabyte = 255;
+ if (fin + 3 > enddata)
break;
- case 32:
- if (fin + 4 > enddata)
- goto outofdata;
- blue = *fin++;
- green = *fin++;
- red = *fin++;
- alphabyte = *fin++;
+ blue = *fin++;
+ green = *fin++;
+ red = *fin++;
+ alpha = 255;
+ }
+ else
+ {
+ if (fin + 4 > enddata)
break;
- }
+ blue = *fin++;
+ green = *fin++;
+ red = *fin++;
+ alpha = *fin++;
+ }
- for(j = 0;j < packetSize;j++)
+ while (runlen && y < image_height)
+ {
+ run = runlen;
+ if (run > image_width - x)
+ run = image_width - x;
+ x += run;
+ runlen -= run;
+ while(run--)
{
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
- *pixbuf++ = alphabyte;
- column++;
- if (column == columns)
- {
- // run spans across rows
- column = 0;
- if (row > 0)
- row--;
- else
- goto breakOut;
- pixbuf = image_rgba + row * columns * 4;
- }
+ *pixbuf++ = alpha;
+ }
+ if (x == image_width)
+ {
+ // end of line, advance to next
+ x = 0;
+ y++;
+ pixbuf += row_inc;
}
}
- else
+ }
+ else
+ {
+ // RLE uncompressed run
+ runlen = 1 + (runlen & 0x7f);
+ while (runlen && y < image_height)
{
- // non run-length packet
- for(j = 0;j < packetSize;j++)
+ run = runlen;
+ if (run > image_width - x)
+ run = image_width - x;
+ x += run;
+ runlen -= run;
+ if (targa_header.pixel_size == 24)
{
- switch (targa_header.pixel_size)
+ if (fin + run * 3 > enddata)
+ break;
+ while(run--)
{
- case 24:
- if (fin + 3 > enddata)
- goto outofdata;
*pixbuf++ = fin[2];
*pixbuf++ = fin[1];
*pixbuf++ = fin[0];
*pixbuf++ = 255;
fin += 3;
+ }
+ }
+ else
+ {
+ if (fin + run * 4 > enddata)
break;
- case 32:
- if (fin + 4 > enddata)
- goto outofdata;
+ while(run--)
+ {
*pixbuf++ = fin[2];
*pixbuf++ = fin[1];
*pixbuf++ = fin[0];
*pixbuf++ = fin[3];
fin += 4;
- break;
- }
- column++;
- if (column == columns)
- {
- // pixel packet run spans across rows
- column = 0;
- if (row > 0)
- row--;
- else
- goto breakOut;
- pixbuf = image_rgba + row * columns * 4;
}
}
+ if (x == image_width)
+ {
+ // end of line, advance to next
+ x = 0;
+ y++;
+ pixbuf += row_inc;
+ }
}
}
- breakOut:;
}
}
-outofdata:;
-
- image_width = columns;
- image_height = rows;
return image_rgba;
}
return image_rgba;
}
+/*
+============
+LoadLMP
+============
+*/
+qbyte *LoadLMPAs8Bit (qbyte *f, int matchwidth, int matchheight)
+{
+ qbyte *image_8bit;
+ int width, height;
+
+ if (loadsize < 9)
+ {
+ Con_Printf("LoadLMPAs8Bit: invalid LMP file\n");
+ return NULL;
+ }
+
+ // parse the very complicated header *chuckle*
+ width = f[0] + f[1] * 256 + f[2] * 65536 + f[3] * 16777216;
+ height = f[4] + f[5] * 256 + f[6] * 65536 + f[7] * 16777216;
+ if ((unsigned) width > 4096 || (unsigned) height > 4096)
+ {
+ Con_Printf("LoadLMPAs8Bit: invalid size\n");
+ return NULL;
+ }
+ if ((matchwidth && width != matchwidth) || (matchheight && height != matchheight))
+ return NULL;
+
+ if (loadsize < 8 + width * height)
+ {
+ Con_Printf("LoadLMPAs8Bit: invalid LMP file\n");
+ return NULL;
+ }
+
+ image_width = width;
+ image_height = height;
+
+ image_8bit = Mem_Alloc(tempmempool, image_width * image_height);
+ if (!image_8bit)
+ {
+ Con_Printf("LoadLMPAs8Bit: not enough memory for %i by %i image\n", image_width, image_height);
+ return NULL;
+ }
+ memcpy(image_8bit, f + 8, image_width * image_height);
+ return image_8bit;
+}
+
void Image_StripImageExtension (char *in, char *out)
{
char *end, *temp;
return rt;
}
-void Image_WriteTGARGB_preflipped (char *filename, int width, int height, qbyte *data)
+qboolean Image_WriteTGARGB_preflipped (char *filename, int width, int height, qbyte *data)
{
+ qboolean ret;
qbyte *buffer, *in, *out, *end;
buffer = Mem_Alloc(tempmempool, width*height*3 + 18);
*out++ = in[1];
*out++ = in[0];
}
- COM_WriteFile (filename, buffer, width*height*3 + 18 );
+ ret = COM_WriteFile (filename, buffer, width*height*3 + 18 );
Mem_Free(buffer);
+ return ret;
}
void Image_WriteTGARGB (char *filename, int width, int height, qbyte *data)
Image_Resample
================
*/
-void Image_Resample (void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight, int bytesperpixel, int quality)
+void Image_Resample (void *indata, int inwidth, int inheight, int indepth, void *outdata, int outwidth, int outheight, int outdepth, int bytesperpixel, int quality)
{
+ if (indepth != 1 || outdepth != 1)
+ Sys_Error("Image_Resample: 3D resampling not supported\n");
if (resamplerowsize < outwidth*4)
{
if (resamplerow1)
}
// in can be the same as out
-void Image_MipReduce(qbyte *in, qbyte *out, int *width, int *height, int destwidth, int destheight, int bytesperpixel)
+void Image_MipReduce(qbyte *in, qbyte *out, int *width, int *height, int *depth, int destwidth, int destheight, int destdepth, int bytesperpixel)
{
int x, y, nextrow;
+ if (*depth != 1 || destdepth != 1)
+ Sys_Error("Image_Resample: 3D resampling not supported\n");
nextrow = *width * bytesperpixel;
if (*width > destwidth)
{
Sys_Error("Image_MipReduce: desired size already achieved\n");
}
}
+
projects / xonotic / darkplaces.git / blobdiff