*/
unsigned char *LoadTGA (const unsigned char *f, int filesize, int matchwidth, int matchheight)
{
- int x, y, row_inc, compressed, readpixelcount, red, green, blue, alpha, runlen, pindex, alphabits;
+ int x, y, pix_inc, row_inc, red, green, blue, alpha, runlen, alphabits;
unsigned char *pixbuf, *image_rgba;
const unsigned char *fin, *enddata;
unsigned char *p;
}
// check our pixel_size restrictions according to image_type
- if (targa_header.image_type == 2 || targa_header.image_type == 10)
+ switch (targa_header.image_type & ~8)
{
+ case 2:
if (targa_header.pixel_size != 24 && targa_header.pixel_size != 32)
{
Con_Print("LoadTGA: only 24bit and 32bit pixel sizes supported for type 2 and type 10 images\n");
PrintTargaHeader(&targa_header);
return NULL;
}
- }
- else if (targa_header.image_type == 1 || targa_header.image_type == 9)
- {
- if (targa_header.pixel_size != 8)
+ break;
+ case 3:
+ // set up a palette to make the loader easier
+ for (x = 0;x < 256;x++)
{
- Con_Print("LoadTGA: only 8bit pixel size for type 1, 3, 9, and 11 images supported\n");
- PrintTargaHeader(&targa_header);
- return NULL;
+ palette[x*4+2] = x;
+ palette[x*4+1] = x;
+ palette[x*4+0] = x;
+ palette[x*4+3] = 255;
}
- }
- else if (targa_header.image_type == 3 || targa_header.image_type == 11)
- {
+ // fall through to colormap case
+ case 1:
if (targa_header.pixel_size != 8)
{
Con_Print("LoadTGA: only 8bit pixel size for type 1, 3, 9, and 11 images supported\n");
PrintTargaHeader(&targa_header);
return NULL;
}
- }
- else
- {
+ break;
+ default:
Con_Printf("LoadTGA: Only type 1, 2, 3, 9, 10, and 11 targa RGB images supported, image_type = %i\n", targa_header.image_type);
PrintTargaHeader(&targa_header);
return NULL;
row_inc = 0;
}
- compressed = targa_header.image_type == 9 || targa_header.image_type == 10 || targa_header.image_type == 11;
x = 0;
y = 0;
red = green = blue = alpha = 255;
- while (y < image_height)
- {
- // decoder is mostly the same whether it's compressed or not
- readpixelcount = 1000000;
- runlen = 1000000;
- if (compressed && fin < enddata)
+ pix_inc = 1;
+ if ((targa_header.image_type & ~8) == 2)
+ pix_inc = targa_header.pixel_size / 8;
+ switch (targa_header.image_type)
+ {
+ case 1: // colormapped, uncompressed
+ case 3: // greyscale, uncompressed
+ if (fin + image_width * image_height * pix_inc > enddata)
+ break;
+ for (y = 0;y < image_height;y++, pixbuf += row_inc)
{
- runlen = *fin++;
- // high bit indicates this is an RLE compressed run
- if (runlen & 0x80)
- readpixelcount = 1;
- runlen = 1 + (runlen & 0x7f);
+ for (x = 0;x < image_width;x++)
+ {
+ p = palette + *fin++ * 4;
+ *pixbuf++ = p[0];
+ *pixbuf++ = p[1];
+ *pixbuf++ = p[2];
+ *pixbuf++ = p[3];
+ }
}
-
- while((runlen--) && y < image_height)
+ break;
+ case 2:
+ // BGR or BGRA, uncompressed
+ if (fin + image_width * image_height * pix_inc > enddata)
+ break;
+ if (targa_header.pixel_size == 32 && alphabits)
{
- if (readpixelcount > 0)
+ for (y = 0;y < image_height;y++, pixbuf += row_inc)
{
- readpixelcount--;
- red = green = blue = alpha = 255;
- if (fin < enddata)
+ for (x = 0;x < image_width;x++, fin += pix_inc)
{
- switch(targa_header.image_type)
+ *pixbuf++ = fin[2];
+ *pixbuf++ = fin[1];
+ *pixbuf++ = fin[0];
+ *pixbuf++ = fin[3];
+ }
+ }
+ }
+ else
+ {
+ for (y = 0;y < image_height;y++, pixbuf += row_inc)
+ {
+ for (x = 0;x < image_width;x++, fin += pix_inc)
+ {
+ *pixbuf++ = fin[2];
+ *pixbuf++ = fin[1];
+ *pixbuf++ = fin[0];
+ *pixbuf++ = 255;
+ }
+ }
+ }
+ break;
+ case 9: // colormapped, RLE
+ case 11: // greyscale, RLE
+ for (y = 0;y < image_height;y++, pixbuf += row_inc)
+ {
+ for (x = 0;x < image_width;)
+ {
+ if (fin >= enddata)
+ break; // error - truncated file
+ runlen = *fin++;
+ if (runlen & 0x80)
+ {
+ // RLE - all pixels the same color
+ runlen += 1 - 0x80;
+ if (fin + pix_inc > enddata)
+ break; // error - truncated file
+ if (x + runlen > image_width)
+ break; // error - line exceeds width
+ p = palette + *fin++ * 4;
+ red = p[0];
+ green = p[1];
+ blue = p[2];
+ alpha = p[3];
+ for (;runlen--;x++)
{
- case 1:
- case 9:
- // colormapped
- pindex = *fin++;
- if (pindex >= targa_header.colormap_length)
- pindex = 0; // error
- p = palette + pindex * 4;
- red = p[0];
- green = p[1];
- blue = p[2];
- alpha = p[3];
- break;
- case 2:
- case 10:
- // BGR or BGRA
- blue = *fin++;
- if (fin < enddata)
- green = *fin++;
- if (fin < enddata)
- red = *fin++;
- if (targa_header.pixel_size == 32 && fin < enddata)
- alpha = *fin++;
- break;
- case 3:
- case 11:
- // greyscale
- red = green = blue = *fin++;
- break;
+ *pixbuf++ = red;
+ *pixbuf++ = green;
+ *pixbuf++ = blue;
+ *pixbuf++ = alpha;
+ }
+ }
+ else
+ {
+ // uncompressed - all pixels different color
+ runlen++;
+ if (fin + pix_inc * runlen > enddata)
+ break; // error - truncated file
+ if (x + runlen > image_width)
+ break; // error - line exceeds width
+ for (;runlen--;x++)
+ {
+ p = palette + *fin++ * 4;
+ *pixbuf++ = p[0];
+ *pixbuf++ = p[1];
+ *pixbuf++ = p[2];
+ *pixbuf++ = p[3];
+ }
+ }
+ }
+ }
+ break;
+ case 10:
+ // BGR or BGRA, RLE
+ if (targa_header.pixel_size == 32 && alphabits)
+ {
+ for (y = 0;y < image_height;y++, pixbuf += row_inc)
+ {
+ for (x = 0;x < image_width;)
+ {
+ if (fin >= enddata)
+ break; // error - truncated file
+ runlen = *fin++;
+ if (runlen & 0x80)
+ {
+ // RLE - all pixels the same color
+ runlen += 1 - 0x80;
+ if (fin + pix_inc > enddata)
+ break; // error - truncated file
+ if (x + runlen > image_width)
+ break; // error - line exceeds width
+ red = fin[2];
+ green = fin[1];
+ blue = fin[0];
+ alpha = fin[3];
+ fin += pix_inc;
+ for (;runlen--;x++)
+ {
+ *pixbuf++ = red;
+ *pixbuf++ = green;
+ *pixbuf++ = blue;
+ *pixbuf++ = alpha;
+ }
+ }
+ else
+ {
+ // uncompressed - all pixels different color
+ runlen++;
+ if (fin + pix_inc * runlen > enddata)
+ break; // error - truncated file
+ if (x + runlen > image_width)
+ break; // error - line exceeds width
+ for (;runlen--;x++, fin += pix_inc)
+ {
+ *pixbuf++ = fin[2];
+ *pixbuf++ = fin[1];
+ *pixbuf++ = fin[0];
+ *pixbuf++ = fin[3];
+ }
}
- if (!alphabits)
- alpha = 255;
}
}
- *pixbuf++ = red;
- *pixbuf++ = green;
- *pixbuf++ = blue;
- *pixbuf++ = alpha;
- x++;
- if (x == image_width)
+ }
+ else
+ {
+ for (y = 0;y < image_height;y++, pixbuf += row_inc)
{
- // end of line, advance to next
- x = 0;
- y++;
- pixbuf += row_inc;
+ for (x = 0;x < image_width;)
+ {
+ if (fin >= enddata)
+ break; // error - truncated file
+ runlen = *fin++;
+ if (runlen & 0x80)
+ {
+ // RLE - all pixels the same color
+ runlen += 1 - 0x80;
+ if (fin + pix_inc > enddata)
+ break; // error - truncated file
+ if (x + runlen > image_width)
+ break; // error - line exceeds width
+ red = fin[2];
+ green = fin[1];
+ blue = fin[0];
+ alpha = 255;
+ fin += pix_inc;
+ for (;runlen--;x++)
+ {
+ *pixbuf++ = red;
+ *pixbuf++ = green;
+ *pixbuf++ = blue;
+ *pixbuf++ = alpha;
+ }
+ }
+ else
+ {
+ // uncompressed - all pixels different color
+ runlen++;
+ if (fin + pix_inc * runlen > enddata)
+ break; // error - truncated file
+ if (x + runlen > image_width)
+ break; // error - line exceeds width
+ for (;runlen--;x++, fin += pix_inc)
+ {
+ *pixbuf++ = fin[2];
+ *pixbuf++ = fin[1];
+ *pixbuf++ = fin[0];
+ *pixbuf++ = 255;
+ }
+ }
+ }
}
}
+ break;
+ default:
+ // unknown image_type
+ break;
}
return image_rgba;
return image_buffer;
}
-static unsigned char *LoadLMPRGBA (const unsigned char *f, int filesize, int matchwidth, int matchheight)
-{
- return LoadLMP(f, filesize, matchwidth, matchheight, false);
-}
-
typedef struct q2wal_s
{
}
-void Image_StripImageExtension (const char *in, char *out)
+void Image_StripImageExtension (const char *in, char *out, size_t size_out)
{
- const char *end, *temp;
- end = in + strlen(in);
- if ((end - in) >= 4)
- {
- temp = end - 4;
- if (strcmp(temp, ".tga") == 0
- || strcmp(temp, ".pcx") == 0
- || strcmp(temp, ".lmp") == 0
- || strcmp(temp, ".png") == 0
- || strcmp(temp, ".jpg") == 0)
- end = temp;
- while (in < end)
- *out++ = *in++;
- *out++ = 0;
- }
+ const char *ext;
+
+ if (size_out == 0)
+ return;
+
+ ext = FS_FileExtension(in);
+ if (ext && (!strcmp(ext, "tga") || !strcmp(ext, "pcx") || !strcmp(ext, "lmp") || !strcmp(ext, "png") || !strcmp(ext, "jpg")))
+ FS_StripExtension(in, out, size_out);
else
- strcpy(out, in);
+ strlcpy(out, in, size_out);
}
-struct imageformat_s
+typedef struct imageformat_s
{
const char *formatstring;
unsigned char *(*loadfunc)(const unsigned char *f, int filesize, int matchwidth, int matchheight);
}
-imageformats[] =
+imageformat_t;
+
+// GAME_TENEBRAE only
+imageformat_t imageformats_tenebrae[] =
+{
+ {"override/%s.tga", LoadTGA},
+ {"override/%s.png", PNG_LoadImage},
+ {"override/%s.jpg", JPEG_LoadImage},
+ {"override/%s.pcx", LoadPCX},
+ {NULL, NULL}
+};
+
+imageformat_t imageformats_nopath[] =
{
{"override/%s.tga", LoadTGA},
{"override/%s.png", PNG_LoadImage},
{"textures/%s.tga", LoadTGA},
{"textures/%s.png", PNG_LoadImage},
{"textures/%s.jpg", JPEG_LoadImage},
- {"textures/%s.pcx", LoadPCX},
- {"textures/%s.wal", LoadWAL},
{"%s.tga", LoadTGA},
{"%s.png", PNG_LoadImage},
{"%s.jpg", JPEG_LoadImage},
{"%s.pcx", LoadPCX},
- {"%s.lmp", LoadLMPRGBA},
+ {NULL, NULL}
+};
+
+imageformat_t imageformats_textures[] =
+{
+ {"%s.tga", LoadTGA},
+ {"%s.png", PNG_LoadImage},
+ {"%s.jpg", JPEG_LoadImage},
+ {"%s.pcx", LoadPCX},
+ {"%s.wal", LoadWAL},
+ {NULL, NULL}
+};
+
+imageformat_t imageformats_gfx[] =
+{
+ {"%s.tga", LoadTGA},
+ {"%s.png", PNG_LoadImage},
+ {"%s.jpg", JPEG_LoadImage},
+ {"%s.pcx", LoadPCX},
+ {NULL, NULL}
+};
+
+imageformat_t imageformats_other[] =
+{
+ {"%s.tga", LoadTGA},
+ {"%s.png", PNG_LoadImage},
+ {"%s.jpg", JPEG_LoadImage},
+ {"%s.pcx", LoadPCX},
{NULL, NULL}
};
unsigned char *loadimagepixels (const char *filename, qboolean complain, int matchwidth, int matchheight)
{
- int i;
fs_offset_t filesize;
+ imageformat_t *firstformat, *format;
unsigned char *f, *data = NULL;
char basename[MAX_QPATH], name[MAX_QPATH], *c;
if (developer_memorydebug.integer)
Mem_CheckSentinelsGlobal();
if (developer_texturelogging.integer)
Log_Printf("textures.log", "%s\n", filename);
- strlcpy(basename, filename, sizeof(basename));
- Image_StripImageExtension(basename, basename); // strip filename extensions to allow replacement by other types
+ Image_StripImageExtension(filename, basename, sizeof(basename)); // strip filename extensions to allow replacement by other types
// replace *'s with #, so commandline utils don't get confused when dealing with the external files
for (c = basename;*c;c++)
if (*c == '*')
*c = '#';
- for (i = 0;imageformats[i].formatstring;i++)
+ name[0] = 0;
+ if (strchr(basename, '/'))
+ {
+ int i;
+ for (i = 0;i < (int)sizeof(name)-1 && basename[i] != '/';i++)
+ name[i] = basename[i];
+ name[i] = 0;
+ }
+ if (gamemode == GAME_TENEBRAE)
+ firstformat = imageformats_tenebrae;
+ else if (!strcasecmp(name, "textures"))
+ firstformat = imageformats_textures;
+ else if (!strcasecmp(name, "gfx"))
+ firstformat = imageformats_gfx;
+ else if (!strchr(basename, '/'))
+ firstformat = imageformats_nopath;
+ else
+ firstformat = imageformats_other;
+ // now try all the formats in the selected list
+ for (format = firstformat;format->formatstring;format++)
{
- sprintf (name, imageformats[i].formatstring, basename);
+ sprintf (name, format->formatstring, basename);
f = FS_LoadFile(name, tempmempool, true, &filesize);
if (f)
{
- data = imageformats[i].loadfunc(f, filesize, matchwidth, matchheight);
+ data = format->loadfunc(f, filesize, matchwidth, matchheight);
Mem_Free(f);
if (data)
{
- Con_DPrintf("loaded image %s (%dx%d)\n", name, image_width, image_height);
+ if (developer.integer >= 10)
+ Con_Printf("loaded image %s (%dx%d)\n", name, image_width, image_height);
if (developer_memorydebug.integer)
Mem_CheckSentinelsGlobal();
return data;
}
+ else
+ {
+ if (developer.integer >= 1)
+ Con_DPrintf("Error loading image %s (file loaded but decode failed)\n", name);
+ }
}
}
if (complain)
{
Con_Printf("Couldn't load %s using ", filename);
- for (i = 0;imageformats[i].formatstring;i++)
+ for (format = firstformat;format->formatstring;format++)
{
- sprintf (name, imageformats[i].formatstring, basename);
- Con_Printf(i == 0 ? "\"%s\"" : (imageformats[i+1].formatstring ? ", \"%s\"" : " or \"%s\".\n"), imageformats[i].formatstring);
+ sprintf (name, format->formatstring, basename);
+ Con_Printf(format == firstformat ? "\"%s\"" : (format[1].formatstring ? ", \"%s\"" : " or \"%s\".\n"), format->formatstring);
}
}
if (developer_memorydebug.integer)
return NULL;
}
-int image_makemask (const unsigned char *in, unsigned char *out, int size)
-{
- int i, count;
- count = 0;
- for (i = 0;i < size;i++)
- {
- out[0] = out[1] = out[2] = 255;
- out[3] = in[3];
- if (in[3] != 255)
- count++;
- in += 4;
- out += 4;
- }
- return count;
-}
-
-unsigned char* loadimagepixelsmask (const char *filename, qboolean complain, int matchwidth, int matchheight)
-{
- unsigned char *in, *data;
- in = data = loadimagepixels(filename, complain, matchwidth, matchheight);
- if (!data)
- return NULL;
- if (image_makemask(data, data, image_width * image_height))
- return data; // some transparency
- else
- {
- Mem_Free(data);
- return NULL; // all opaque
- }
-}
-
rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags)
{
unsigned char *data;
return rt;
}
-rtexture_t *loadtextureimagemask (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags)
-{
- unsigned char *data;
- rtexture_t *rt;
- if (!(data = loadimagepixelsmask (filename, complain, matchwidth, matchheight)))
- return 0;
- rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL);
- Mem_Free(data);
- return rt;
-}
-
-rtexture_t *image_masktex;
-rtexture_t *image_nmaptex;
-rtexture_t *loadtextureimagewithmask (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags)
-{
- unsigned char *data;
- rtexture_t *rt;
- image_masktex = NULL;
- image_nmaptex = NULL;
- if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight)))
- return 0;
-
- rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL);
-
- if (flags & TEXF_ALPHA && image_makemask(data, data, image_width * image_height))
- image_masktex = R_LoadTexture2D(pool, va("%s_mask", filename), image_width, image_height, data, TEXTYPE_RGBA, flags, NULL);
-
- Mem_Free(data);
- return rt;
-}
-
-rtexture_t *loadtextureimagewithmaskandnmap (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags, float bumpscale)
-{
- unsigned char *data, *data2;
- rtexture_t *rt;
- image_masktex = NULL;
- image_nmaptex = NULL;
- if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight)))
- return 0;
-
- data2 = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
-
- rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_RGBA, flags, NULL);
-
- Image_HeightmapToNormalmap(data, data2, image_width, image_height, (flags & TEXF_CLAMP) != 0, bumpscale);
- image_nmaptex = R_LoadTexture2D(pool, va("%s_nmap", filename), image_width, image_height, data2, TEXTYPE_RGBA, flags, NULL);
-
- if (flags & TEXF_ALPHA && image_makemask(data, data2, image_width * image_height))
- image_masktex = R_LoadTexture2D(pool, va("%s_mask", filename), image_width, image_height, data2, TEXTYPE_RGBA, flags, NULL);
-
- Mem_Free(data2);
-
- Mem_Free(data);
- return rt;
-}
-
-rtexture_t *loadtextureimagebumpasnmap (rtexturepool_t *pool, const char *filename, int matchwidth, int matchheight, qboolean complain, int flags, float bumpscale)
-{
- unsigned char *data, *data2;
- rtexture_t *rt;
- if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight)))
- return 0;
- data2 = (unsigned char *)Mem_Alloc(tempmempool, image_width * image_height * 4);
-
- Image_HeightmapToNormalmap(data, data2, image_width, image_height, (flags & TEXF_CLAMP) != 0, bumpscale);
- rt = R_LoadTexture2D(pool, filename, image_width, image_height, data2, TEXTYPE_RGBA, flags, NULL);
-
- Mem_Free(data2);
- Mem_Free(data);
- return rt;
-}
-
qboolean Image_WriteTGARGB_preflipped (const char *filename, int width, int height, const unsigned char *data, unsigned char *buffer)
{
qboolean ret;
return ret;
}
-void Image_WriteTGARGB (const char *filename, int width, int height, const unsigned char *data)
+void Image_WriteTGARGBA (const char *filename, int width, int height, const unsigned char *data)
{
int y;
unsigned char *buffer, *out;
const unsigned char *in, *end;
- buffer = (unsigned char *)Mem_Alloc(tempmempool, width*height*3 + 18);
+ buffer = (unsigned char *)Mem_Alloc(tempmempool, width*height*4 + 18);
memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
buffer[13] = (width >> 8) & 0xFF;
buffer[14] = (height >> 0) & 0xFF;
buffer[15] = (height >> 8) & 0xFF;
- buffer[16] = 24; // pixel size
- // swap rgb to bgr and flip upside down
- out = buffer + 18;
- for (y = height - 1;y >= 0;y--)
+ for (y = 3;y < width*height*4;y += 4)
+ if (data[y] < 255)
+ break;
+
+ if (y < width*height*4)
{
- in = data + y * width * 3;
- end = in + width * 3;
- for (;in < end;in += 3)
+ // save the alpha channel
+ buffer[16] = 32; // pixel size
+ buffer[17] = 8; // 8 bits of alpha
+
+ // swap rgba to bgra and flip upside down
+ out = buffer + 18;
+ for (y = height - 1;y >= 0;y--)
{
- *out++ = in[2];
- *out++ = in[1];
- *out++ = in[0];
+ in = data + y * width * 4;
+ end = in + width * 4;
+ for (;in < end;in += 4)
+ {
+ *out++ = in[2];
+ *out++ = in[1];
+ *out++ = in[0];
+ *out++ = in[3];
+ }
}
+ FS_WriteFile (filename, buffer, width*height*4 + 18 );
}
- FS_WriteFile (filename, buffer, width*height*3 + 18 );
-
- Mem_Free(buffer);
-}
-
-void Image_WriteTGARGBA (const char *filename, int width, int height, const unsigned char *data)
-{
- int y;
- unsigned char *buffer, *out;
- const unsigned char *in, *end;
-
- buffer = (unsigned char *)Mem_Alloc(tempmempool, width*height*4 + 18);
-
- memset (buffer, 0, 18);
- buffer[2] = 2; // uncompressed type
- buffer[12] = (width >> 0) & 0xFF;
- buffer[13] = (width >> 8) & 0xFF;
- buffer[14] = (height >> 0) & 0xFF;
- buffer[15] = (height >> 8) & 0xFF;
- buffer[16] = 32; // pixel size
- buffer[17] = 8; // transparent flag? (seems to be needed by gimp)
-
- // swap rgba to bgra and flip upside down
- out = buffer + 18;
- for (y = height - 1;y >= 0;y--)
+ else
{
- in = data + y * width * 4;
- end = in + width * 4;
- for (;in < end;in += 4)
+ // save only the color channels
+ buffer[16] = 24; // pixel size
+ buffer[17] = 0; // 8 bits of alpha
+
+ // swap rgba to bgr and flip upside down
+ out = buffer + 18;
+ for (y = height - 1;y >= 0;y--)
{
- *out++ = in[2];
- *out++ = in[1];
- *out++ = in[0];
- *out++ = in[3];
+ in = data + y * width * 4;
+ end = in + width * 4;
+ for (;in < end;in += 4)
+ {
+ *out++ = in[2];
+ *out++ = in[1];
+ *out++ = in[0];
+ }
}
+ FS_WriteFile (filename, buffer, width*height*3 + 18 );
}
- FS_WriteFile (filename, buffer, width*height*4 + 18 );
Mem_Free(buffer);
}
-qboolean Image_CheckAlpha(const unsigned char *data, int size, qboolean rgba)
-{
- const unsigned char *end;
- if (rgba)
- {
- // check alpha bytes
- for (end = data + size * 4, data += 3;data < end;data += 4)
- if (*data < 255)
- return 1;
- }
- else
- {
- // color 255 is transparent
- for (end = data + size;data < end;data++)
- if (*data == 255)
- return 1;
- }
- return 0;
-}
-
static void Image_Resample32LerpLine (const unsigned char *in, unsigned char *out, int inwidth, int outwidth)
{
int j, xi, oldx = 0, f, fstep, endx, lerp;
// in can be the same as out
void Image_MipReduce(const unsigned char *in, unsigned char *out, int *width, int *height, int *depth, int destwidth, int destheight, int destdepth, int bytesperpixel)
{
+ const unsigned char *inrow;
int x, y, nextrow;
if (*depth != 1 || destdepth != 1)
{
Con_Printf ("Image_Resample: 3D resampling not supported\n");
+ if (*width > destwidth)
+ *width >>= 1;
+ if (*height > destheight)
+ *height >>= 1;
+ if (*depth > destdepth)
+ *depth >>= 1;
return;
}
+ // note: if given odd width/height this discards the last row/column of
+ // pixels, rather than doing a proper box-filter scale down
+ inrow = in;
nextrow = *width * bytesperpixel;
if (*width > destwidth)
{
*height >>= 1;
if (bytesperpixel == 4)
{
- for (y = 0;y < *height;y++)
+ for (y = 0;y < *height;y++, inrow += nextrow * 2)
{
- for (x = 0;x < *width;x++)
+ for (in = inrow, x = 0;x < *width;x++)
{
out[0] = (unsigned char) ((in[0] + in[4] + in[nextrow ] + in[nextrow+4]) >> 2);
out[1] = (unsigned char) ((in[1] + in[5] + in[nextrow+1] + in[nextrow+5]) >> 2);
out += 4;
in += 8;
}
- in += nextrow; // skip a line
}
}
else if (bytesperpixel == 3)
{
- for (y = 0;y < *height;y++)
+ for (y = 0;y < *height;y++, inrow += nextrow * 2)
{
- for (x = 0;x < *width;x++)
+ for (in = inrow, x = 0;x < *width;x++)
{
out[0] = (unsigned char) ((in[0] + in[3] + in[nextrow ] + in[nextrow+3]) >> 2);
out[1] = (unsigned char) ((in[1] + in[4] + in[nextrow+1] + in[nextrow+4]) >> 2);
out += 3;
in += 6;
}
- in += nextrow; // skip a line
}
}
else
// reduce width
if (bytesperpixel == 4)
{
- for (y = 0;y < *height;y++)
+ for (y = 0;y < *height;y++, inrow += nextrow)
{
- for (x = 0;x < *width;x++)
+ for (in = inrow, x = 0;x < *width;x++)
{
out[0] = (unsigned char) ((in[0] + in[4]) >> 1);
out[1] = (unsigned char) ((in[1] + in[5]) >> 1);
}
else if (bytesperpixel == 3)
{
- for (y = 0;y < *height;y++)
+ for (y = 0;y < *height;y++, inrow += nextrow)
{
- for (x = 0;x < *width;x++)
+ for (in = inrow, x = 0;x < *width;x++)
{
out[0] = (unsigned char) ((in[0] + in[3]) >> 1);
out[1] = (unsigned char) ((in[1] + in[4]) >> 1);
*height >>= 1;
if (bytesperpixel == 4)
{
- for (y = 0;y < *height;y++)
+ for (y = 0;y < *height;y++, inrow += nextrow * 2)
{
- for (x = 0;x < *width;x++)
+ for (in = inrow, x = 0;x < *width;x++)
{
out[0] = (unsigned char) ((in[0] + in[nextrow ]) >> 1);
out[1] = (unsigned char) ((in[1] + in[nextrow+1]) >> 1);
out += 4;
in += 4;
}
- in += nextrow; // skip a line
}
}
else if (bytesperpixel == 3)
{
- for (y = 0;y < *height;y++)
+ for (y = 0;y < *height;y++, inrow += nextrow * 2)
{
- for (x = 0;x < *width;x++)
+ for (in = inrow, x = 0;x < *width;x++)
{
out[0] = (unsigned char) ((in[0] + in[nextrow ]) >> 1);
out[1] = (unsigned char) ((in[1] + in[nextrow+1]) >> 1);
out += 3;
in += 3;
}
- in += nextrow; // skip a line
}
}
else
void Image_HeightmapToNormalmap(const unsigned char *inpixels, unsigned char *outpixels, int width, int height, int clamp, float bumpscale)
{
- int x, y;
- const unsigned char *p0, *p1, *p2;
+ int x, y, x1, x2, y1, y2;
+ const unsigned char *b, *row[3];
+ int p[5];
unsigned char *out;
float iwidth, iheight, ibumpscale, n[3];
iwidth = 1.0f / width;
iheight = 1.0f / height;
- ibumpscale = (255.0f * 3.0f) / bumpscale;
+ ibumpscale = (255.0f * 6.0f) / bumpscale;
out = outpixels;
- for (y = 0;y < height;y++)
+ for (y = 0, y1 = height-1;y < height;y1 = y, y++)
{
- for (x = 0;x < width;x++)
+ y2 = y + 1;if (y2 >= height) y2 = 0;
+ row[0] = inpixels + (y1 * width) * 4;
+ row[1] = inpixels + (y * width) * 4;
+ row[2] = inpixels + (y2 * width) * 4;
+ for (x = 0, x1 = width-1;x < width;x1 = x, x++)
{
- p0 = inpixels + (y * width + x) * 4;
- if (x == width - 1)
- {
- if (clamp)
- p1 = inpixels + (y * width + x) * 4;
- else
- p1 = inpixels + (y * width) * 4;
- }
- else
- p1 = inpixels + (y * width + x + 1) * 4;
- if (y == height - 1)
- {
- if (clamp)
- p2 = inpixels + (y * width + x) * 4;
- else
- p2 = inpixels + x * 4;
- }
- else
- p2 = inpixels + ((y + 1) * width + x) * 4;
- /*
- dv[0][0] = iwidth;
- dv[0][1] = 0;
- dv[0][2] = ((p0[0] + p0[1] + p0[2]) * ibumpscale) - ((p1[0] + p1[1] + p1[2]) * ibumpscale);
- dv[1][0] = 0;
- dv[1][1] = iheight;
- dv[1][2] = ((p2[0] + p2[1] + p2[2]) * ibumpscale) - ((p0[0] + p0[1] + p0[2]) * ibumpscale);
- n[0] = dv[0][1]*dv[1][2]-dv[0][2]*dv[1][1];
- n[1] = dv[0][2]*dv[1][0]-dv[0][0]*dv[1][2];
- n[2] = dv[0][0]*dv[1][1]-dv[0][1]*dv[1][0];
- */
- n[0] = ((p0[0] + p0[1] + p0[2]) - (p1[0] + p1[1] + p1[2]));
- n[1] = ((p2[0] + p2[1] + p2[2]) - (p0[0] + p0[1] + p0[2]));
- n[2] = ibumpscale;
- VectorNormalize(n);
- /*
- // this should work for the bottom right triangle if anyone wants
- // code for that for some reason
- n[0] = ((p3[0] + p3[1] + p3[2]) - (p1[0] + p1[1] + p1[2]));
- n[1] = ((p2[0] + p2[1] + p2[2]) - (p3[0] + p3[1] + p3[2]));
+ x2 = x + 1;if (x2 >= width) x2 = 0;
+ // left, right
+ b = row[1] + x1 * 4;p[0] = (b[0] + b[1] + b[2]);
+ b = row[1] + x2 * 4;p[1] = (b[0] + b[1] + b[2]);
+ // above, below
+ b = row[0] + x * 4;p[2] = (b[0] + b[1] + b[2]);
+ b = row[2] + x * 4;p[3] = (b[0] + b[1] + b[2]);
+ // center
+ b = row[1] + x * 4;p[4] = (b[0] + b[1] + b[2]);
+ // calculate a normal from the slopes
+ n[0] = p[0] - p[1];
+ n[1] = p[3] - p[2];
n[2] = ibumpscale;
VectorNormalize(n);
- */
- out[0] = 128.0f + n[0] * 127.0f;
- out[1] = 128.0f + n[1] * 127.0f;
- out[2] = 128.0f + n[2] * 127.0f;
- out[3] = (p0[0] + p0[1] + p0[2]) / 3;
+ // turn it into a dot3 rgb vector texture
+ out[0] = (int)(128.0f + n[0] * 127.0f);
+ out[1] = (int)(128.0f + n[1] * 127.0f);
+ out[2] = (int)(128.0f + n[2] * 127.0f);
+ out[3] = (p[4]) / 3;
out += 4;
}
}
}
-
-int image_loadskin(imageskin_t *s, const char *shadername)
-{
- int j;
- unsigned char *bumppixels;
- int bumppixels_width, bumppixels_height;
- char name[MAX_QPATH];
- strlcpy(name, shadername, sizeof(name));
- Image_StripImageExtension(name, name);
- memset(s, 0, sizeof(*s));
- s->basepixels = loadimagepixels(name, false, 0, 0);
- if (s->basepixels == NULL)
- return false;
- s->basepixels_width = image_width;
- s->basepixels_height = image_height;
-
- bumppixels = NULL;bumppixels_width = 0;bumppixels_height = 0;
- if (Image_CheckAlpha(s->basepixels, s->basepixels_width * s->basepixels_height, true))
- {
- s->maskpixels = (unsigned char *)Mem_Alloc(loadmodel->mempool, s->basepixels_width * s->basepixels_height * 4);
- s->maskpixels_width = s->basepixels_width;
- s->maskpixels_height = s->basepixels_height;
- memcpy(s->maskpixels, s->basepixels, s->maskpixels_width * s->maskpixels_height * 4);
- for (j = 0;j < s->basepixels_width * s->basepixels_height * 4;j += 4)
- {
- s->maskpixels[j+0] = 255;
- s->maskpixels[j+1] = 255;
- s->maskpixels[j+2] = 255;
- }
- }
-
- // _luma is supported for tenebrae compatibility
- // (I think it's a very stupid name, but oh well)
- if ((s->glowpixels = loadimagepixels(va("%s_glow", name), false, 0, 0)) != NULL
- || (s->glowpixels = loadimagepixels(va("%s_luma", name), false, 0, 0)) != NULL)
- {
- s->glowpixels_width = image_width;
- s->glowpixels_height = image_height;
- }
- // _norm is the name used by tenebrae
- // (I don't like the name much)
- if ((s->nmappixels = loadimagepixels(va("%s_norm", name), false, 0, 0)) != NULL)
- {
- s->nmappixels_width = image_width;
- s->nmappixels_height = image_height;
- }
- else if ((bumppixels = loadimagepixels(va("%s_bump", name), false, 0, 0)) != NULL)
- {
- bumppixels_width = image_width;
- bumppixels_height = image_height;
- }
- if ((s->glosspixels = loadimagepixels(va("%s_gloss", name), false, 0, 0)) != NULL)
- {
- s->glosspixels_width = image_width;
- s->glosspixels_height = image_height;
- }
- if ((s->pantspixels = loadimagepixels(va("%s_pants", name), false, 0, 0)) != NULL)
- {
- s->pantspixels_width = image_width;
- s->pantspixels_height = image_height;
- }
- if ((s->shirtpixels = loadimagepixels(va("%s_shirt", name), false, 0, 0)) != NULL)
- {
- s->shirtpixels_width = image_width;
- s->shirtpixels_height = image_height;
- }
-
- if (s->nmappixels == NULL)
- {
- if (bumppixels != NULL)
- {
- if (r_shadow_bumpscale_bumpmap.value > 0)
- {
- s->nmappixels = (unsigned char *)Mem_Alloc(loadmodel->mempool, bumppixels_width * bumppixels_height * 4);
- s->nmappixels_width = bumppixels_width;
- s->nmappixels_height = bumppixels_height;
- Image_HeightmapToNormalmap(bumppixels, s->nmappixels, s->nmappixels_width, s->nmappixels_height, false, r_shadow_bumpscale_bumpmap.value);
- }
- }
- else
- {
- if (r_shadow_bumpscale_basetexture.value > 0)
- {
- s->nmappixels = (unsigned char *)Mem_Alloc(loadmodel->mempool, s->basepixels_width * s->basepixels_height * 4);
- s->nmappixels_width = s->basepixels_width;
- s->nmappixels_height = s->basepixels_height;
- Image_HeightmapToNormalmap(s->basepixels, s->nmappixels, s->nmappixels_width, s->nmappixels_height, false, r_shadow_bumpscale_basetexture.value);
- }
- }
- }
- if (bumppixels != NULL)
- Mem_Free(bumppixels);
- return true;
-}
-
-void image_freeskin(imageskin_t *s)
-{
- if (s->basepixels)
- Mem_Free(s->basepixels);
- if (s->maskpixels)
- Mem_Free(s->maskpixels);
- if (s->nmappixels)
- Mem_Free(s->nmappixels);
- if (s->glowpixels)
- Mem_Free(s->glowpixels);
- if (s->glosspixels)
- Mem_Free(s->glosspixels);
- if (s->pantspixels)
- Mem_Free(s->pantspixels);
- if (s->shirtpixels)
- Mem_Free(s->shirtpixels);
- memset(s, 0, sizeof(*s));
-}
-
projects / xonotic / darkplaces.git / blobdiff