int image_width;
int image_height;
+void Image_GammaRemapRGB(qbyte *in, qbyte *out, int pixels, qbyte *gammar, qbyte *gammag, qbyte *gammab)
+{
+ while (pixels--)
+ {
+ out[0] = gammar[in[0]];
+ out[1] = gammag[in[1]];
+ out[2] = gammab[in[2]];
+ in += 3;
+ out += 3;
+ }
+}
+
// note: pal must be 32bit color
-void Image_Copy8bitRGBA(byte *in, byte *out, int pixels, int *pal)
+void Image_Copy8bitRGBA(qbyte *in, qbyte *out, int pixels, int *pal)
{
int *iout = (void *)out;
while (pixels >= 8)
iout[0] = pal[in[0]];
}
-void Image_CopyRGBAGamma(byte *in, byte *out, int pixels)
-{
- while (pixels--)
- {
- out[0] = texgamma[in[0]];
- out[1] = texgamma[in[1]];
- out[2] = texgamma[in[2]];
- out[3] = in[3] ;
- in += 4;
- out += 4;
- }
-}
-
-
/*
=================================================================
LoadPCX
============
*/
-byte* LoadPCX (byte *f, int matchwidth, int matchheight)
+qbyte* LoadPCX (qbyte *f, int matchwidth, int matchheight)
{
- pcx_t pcx;
- byte *palette, *a, *b, *image_rgba, *fin, *pbuf, *enddata;
- int x, y, x2, dataByte;
+ pcx_t pcx;
+ qbyte *palette, *a, *b, *image_rgba, *fin, *pbuf, *enddata;
+ int x, y, x2, dataByte;
if (loadsize < sizeof(pcx) + 768)
{
Con_Printf ("Bad pcx file\n");
- qfree(f);
return NULL;
}
if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || pcx.xmax > 320 || pcx.ymax > 256)
{
Con_Printf ("Bad pcx file\n");
- qfree(f);
return NULL;
}
if (matchwidth && (pcx.xmax+1) != matchwidth)
{
- qfree(f);
return NULL;
}
if (matchheight && (pcx.ymax+1) != matchheight)
{
- qfree(f);
return NULL;
}
palette = f + loadsize - 768;
- image_rgba = qmalloc(image_width*image_height*4);
+ image_rgba = Mem_Alloc(tempmempool, image_width*image_height*4);
if (!image_rgba)
{
Con_Printf("LoadPCX: not enough memory for %i by %i image\n", image_width, image_height);
- qfree(f);
return NULL;
}
pbuf = image_rgba + image_width*image_height*3;
*a++ = 255;
}
- qfree(f);
return image_rgba;
}
LoadTGA
=============
*/
-byte* LoadTGA (byte *f, int matchwidth, int matchheight)
+qbyte *LoadTGA (qbyte *f, int matchwidth, int matchheight)
{
int columns, rows, row, column;
- byte *pixbuf, *image_rgba, *fin, *enddata;
+ qbyte *pixbuf, *image_rgba, *fin, *enddata;
if (loadsize < 18+3)
- {
- qfree(f);
return NULL;
- }
targa_header.id_length = f[0];
targa_header.colormap_type = f[1];
targa_header.image_type = f[2];
-
+
targa_header.colormap_index = f[3] + f[4] * 256;
targa_header.colormap_length = f[5] + f[6] * 256;
targa_header.colormap_size = f[7];
targa_header.width = f[12] + f[13] * 256;
targa_header.height = f[14] + f[15] * 256;
if (matchwidth && targa_header.width != matchwidth)
- {
- qfree(f);
return NULL;
- }
if (matchheight && targa_header.height != matchheight)
- {
- qfree(f);
return NULL;
- }
targa_header.pixel_size = f[16];
targa_header.attributes = f[17];
if (targa_header.image_type != 2 && targa_header.image_type != 10)
{
Con_Printf ("LoadTGA: Only type 2 and 10 targa RGB images supported\n");
- qfree(f);
return NULL;
}
if (targa_header.colormap_type != 0 || (targa_header.pixel_size != 32 && targa_header.pixel_size != 24))
{
Con_Printf ("LoadTGA: Only 32 or 24 bit images supported (no colormaps)\n");
- qfree(f);
return NULL;
}
columns = targa_header.width;
rows = targa_header.height;
- image_rgba = qmalloc(columns * rows * 4);
+ image_rgba = Mem_Alloc(tempmempool, columns * rows * 4);
if (!image_rgba)
{
Con_Printf ("LoadTGA: not enough memory for %i by %i image\n", columns, rows);
- qfree(f);
return NULL;
}
alphabyte = *fin++;
break;
}
-
+
for(j = 0;j < packetSize;j++)
{
*pixbuf++ = red;
else
goto breakOut;
pixbuf = image_rgba + row * columns * 4;
- }
+ }
}
}
}
}
}
outofdata:;
-
+
image_width = columns;
image_height = rows;
- free(f);
return image_rgba;
}
LoadLMP
============
*/
-byte* LoadLMP (byte *f, int matchwidth, int matchheight)
+qbyte *LoadLMP (qbyte *f, int matchwidth, int matchheight)
{
- byte *image_rgba;
- int width, height;
-
+ qbyte *image_rgba;
+ int width, height;
+
if (loadsize < 9)
{
Con_Printf("LoadLMP: invalid LMP file\n");
- qfree(f);
return NULL;
}
if ((unsigned) width > 4096 || (unsigned) height > 4096)
{
Con_Printf("LoadLMP: invalid size\n");
- qfree(f);
return NULL;
}
- if (matchwidth && width != matchwidth)
- {
- qfree(f);
- return NULL;
- }
- if (matchheight && height != matchheight)
- {
- qfree(f);
+ if ((matchwidth && width != matchwidth) || (matchheight && height != matchheight))
return NULL;
- }
if (loadsize < 8 + width * height)
{
Con_Printf("LoadLMP: invalid LMP file\n");
- qfree(f);
return NULL;
}
image_width = width;
image_height = height;
- image_rgba = qmalloc(image_width * image_height * 4);
+ image_rgba = Mem_Alloc(tempmempool, image_width * image_height * 4);
if (!image_rgba)
{
Con_Printf("LoadLMP: not enough memory for %i by %i image\n", image_width, image_height);
- qfree(f);
return NULL;
}
Image_Copy8bitRGBA(f + 8, image_rgba, image_width * image_height, d_8to24table);
- qfree(f);
return image_rgba;
}
strcpy(out, in);
}
-byte* loadimagepixels (char* filename, qboolean complain, int matchwidth, int matchheight)
+qbyte *loadimagepixels (char *filename, qboolean complain, int matchwidth, int matchheight)
{
- byte *f;
- char basename[256], name[256];
- byte *c;
+ qbyte *f, *data;
+ char basename[256], name[256], *c;
Image_StripImageExtension(filename, basename); // strip .tga, .pcx and .lmp 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 = '#';
sprintf (name, "textures/%s.tga", basename);
- f = COM_LoadMallocFile(name, true);
+ f = COM_LoadFile(name, true);
if (f)
- return LoadTGA (f, matchwidth, matchheight);
+ {
+ data = LoadTGA (f, matchwidth, matchheight);
+ Mem_Free(f);
+ return data;
+ }
sprintf (name, "textures/%s.pcx", basename);
- f = COM_LoadMallocFile(name, true);
+ f = COM_LoadFile(name, true);
if (f)
- return LoadPCX (f, matchwidth, matchheight);
+ {
+ data = LoadPCX (f, matchwidth, matchheight);
+ Mem_Free(f);
+ return data;
+ }
sprintf (name, "%s.tga", basename);
- f = COM_LoadMallocFile(name, true);
+ f = COM_LoadFile(name, true);
if (f)
- return LoadTGA (f, matchwidth, matchheight);
+ {
+ data = LoadTGA (f, matchwidth, matchheight);
+ Mem_Free(f);
+ return data;
+ }
sprintf (name, "%s.pcx", basename);
- f = COM_LoadMallocFile(name, true);
+ f = COM_LoadFile(name, true);
if (f)
- return LoadPCX (f, matchwidth, matchheight);
+ {
+ data = LoadPCX (f, matchwidth, matchheight);
+ Mem_Free(f);
+ return data;
+ }
sprintf (name, "%s.lmp", basename);
- f = COM_LoadMallocFile(name, true);
+ f = COM_LoadFile(name, true);
if (f)
- return LoadLMP (f, matchwidth, matchheight);
+ {
+ data = LoadLMP (f, matchwidth, matchheight);
+ Mem_Free(f);
+ return data;
+ }
if (complain)
Con_Printf ("Couldn't load %s.tga, .pcx, .lmp\n", filename);
return NULL;
}
-int image_makemask (byte *in, byte *out, int size)
+int image_makemask (qbyte *in, qbyte *out, int size)
{
int i, count;
count = 0;
return count;
}
-byte* loadimagepixelsmask (char* filename, qboolean complain, int matchwidth, int matchheight)
+qbyte* loadimagepixelsmask (char* filename, qboolean complain, int matchwidth, int matchheight)
{
- byte *in, *data;
+ qbyte *in, *data;
in = data = loadimagepixels(filename, complain, matchwidth, matchheight);
if (!data)
return NULL;
return data; // some transparency
else
{
- qfree(data);
+ Mem_Free(data);
return NULL; // all opaque
}
}
-rtexture_t *loadtextureimage (char* filename, int matchwidth, int matchheight, qboolean complain, qboolean mipmap, qboolean precache)
+rtexture_t *loadtextureimage (rtexturepool_t *pool, char* filename, int matchwidth, int matchheight, qboolean complain, qboolean mipmap, qboolean precache)
{
- byte *data;
+ qbyte *data;
rtexture_t *rt;
if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight)))
return 0;
- rt = R_LoadTexture (filename, image_width, image_height, data, TEXF_ALPHA | TEXF_RGBA | (mipmap ? TEXF_MIPMAP : 0) | (mipmap ? TEXF_PRECACHE : 0));
- qfree(data);
+ rt = R_LoadTexture (pool, filename, image_width, image_height, data, TEXTYPE_RGBA, TEXF_ALPHA | (mipmap ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0));
+ Mem_Free(data);
return rt;
}
-rtexture_t *loadtextureimagemask (char* filename, int matchwidth, int matchheight, qboolean complain, qboolean mipmap, qboolean precache)
+rtexture_t *loadtextureimagemask (rtexturepool_t *pool, char* filename, int matchwidth, int matchheight, qboolean complain, qboolean mipmap, qboolean precache)
{
- byte *data;
+ qbyte *data;
rtexture_t *rt;
if (!(data = loadimagepixelsmask (filename, complain, matchwidth, matchheight)))
return 0;
- rt = R_LoadTexture (filename, image_width, image_height, data, TEXF_ALPHA | TEXF_RGBA | (mipmap ? TEXF_MIPMAP : 0) | (mipmap ? TEXF_PRECACHE : 0));
- qfree(data);
+ rt = R_LoadTexture (pool, filename, image_width, image_height, data, TEXTYPE_RGBA, TEXF_ALPHA | (mipmap ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0));
+ Mem_Free(data);
return rt;
}
rtexture_t *image_masktex;
-rtexture_t *loadtextureimagewithmask (char* filename, int matchwidth, int matchheight, qboolean complain, qboolean mipmap, qboolean precache)
+rtexture_t *loadtextureimagewithmask (rtexturepool_t *pool, char* filename, int matchwidth, int matchheight, qboolean complain, qboolean mipmap, qboolean precache)
{
int count;
- byte *data;
+ qbyte *data;
char *filename2;
rtexture_t *rt;
image_masktex = NULL;
if (!(data = loadimagepixels (filename, complain, matchwidth, matchheight)))
return 0;
- rt = R_LoadTexture (filename, image_width, image_height, data, TEXF_ALPHA | TEXF_RGBA | (mipmap ? TEXF_MIPMAP : 0) | (mipmap ? TEXF_PRECACHE : 0));
+ rt = R_LoadTexture (pool, filename, image_width, image_height, data, TEXTYPE_RGBA, TEXF_ALPHA | (mipmap ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0));
count = image_makemask(data, data, image_width * image_height);
if (count)
{
- filename2 = qmalloc(strlen(filename) + 6);
+ filename2 = Mem_Alloc(tempmempool, strlen(filename) + 6);
sprintf(filename2, "%s_mask", filename);
- image_masktex = R_LoadTexture (filename2, image_width, image_height, data, TEXF_ALPHA | TEXF_RGBA | (mipmap ? TEXF_MIPMAP : 0) | (mipmap ? TEXF_PRECACHE : 0));
- qfree(filename2);
+ image_masktex = R_LoadTexture (pool, filename2, image_width, image_height, data, TEXTYPE_RGBA, TEXF_ALPHA | (mipmap ? TEXF_MIPMAP : 0) | (precache ? TEXF_PRECACHE : 0));
+ Mem_Free(filename2);
}
- qfree(data);
+ Mem_Free(data);
return rt;
}
-void Image_WriteTGARGB_preflipped (char *filename, int width, int height, byte *data)
+qboolean Image_WriteTGARGB_preflipped (char *filename, int width, int height, qbyte *data)
{
- byte *buffer, *in, *out, *end;
+ qboolean ret;
+ qbyte *buffer, *in, *out, *end;
- buffer = qmalloc(width*height*3 + 18);
+ buffer = Mem_Alloc(tempmempool, width*height*3 + 18);
memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
*out++ = in[1];
*out++ = in[0];
}
- COM_WriteFile (filename, buffer, width*height*3 + 18 );
+ ret = COM_WriteFile (filename, buffer, width*height*3 + 18 );
- qfree(buffer);
+ Mem_Free(buffer);
+ return ret;
}
-void Image_WriteTGARGB (char *filename, int width, int height, byte *data)
+void Image_WriteTGARGB (char *filename, int width, int height, qbyte *data)
{
int y;
- byte *buffer, *in, *out, *end;
+ qbyte *buffer, *in, *out, *end;
- buffer = qmalloc(width*height*3 + 18);
+ buffer = Mem_Alloc(tempmempool, width*height*3 + 18);
memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
}
COM_WriteFile (filename, buffer, width*height*3 + 18 );
- qfree(buffer);
+ Mem_Free(buffer);
}
-void Image_WriteTGARGBA (char *filename, int width, int height, byte *data)
+void Image_WriteTGARGBA (char *filename, int width, int height, qbyte *data)
{
int y;
- byte *buffer, *in, *out, *end;
+ qbyte *buffer, *in, *out, *end;
- buffer = qmalloc(width*height*4 + 18);
+ buffer = Mem_Alloc(tempmempool, width*height*4 + 18);
memset (buffer, 0, 18);
buffer[2] = 2; // uncompressed type
}
COM_WriteFile (filename, buffer, width*height*4 + 18 );
- qfree(buffer);
+ Mem_Free(buffer);
}
-qboolean Image_CheckAlpha(byte *data, int size, qboolean rgba)
+qboolean Image_CheckAlpha(qbyte *data, int size, qboolean rgba)
{
- byte *end;
+ qbyte *end;
if (rgba)
{
// check alpha bytes
}
return 0;
}
+
+static void Image_Resample32LerpLine (qbyte *in, qbyte *out, int inwidth, int outwidth)
+{
+ int j, xi, oldx = 0, f, fstep, endx, lerp;
+ fstep = (int) (inwidth*65536.0f/outwidth);
+ endx = (inwidth-1);
+ for (j = 0,f = 0;j < outwidth;j++, f += fstep)
+ {
+ xi = f >> 16;
+ if (xi != oldx)
+ {
+ in += (xi - oldx) * 4;
+ oldx = xi;
+ }
+ if (xi < endx)
+ {
+ lerp = f & 0xFFFF;
+ *out++ = (qbyte) ((((in[4] - in[0]) * lerp) >> 16) + in[0]);
+ *out++ = (qbyte) ((((in[5] - in[1]) * lerp) >> 16) + in[1]);
+ *out++ = (qbyte) ((((in[6] - in[2]) * lerp) >> 16) + in[2]);
+ *out++ = (qbyte) ((((in[7] - in[3]) * lerp) >> 16) + in[3]);
+ }
+ else // last pixel of the line has no pixel to lerp to
+ {
+ *out++ = in[0];
+ *out++ = in[1];
+ *out++ = in[2];
+ *out++ = in[3];
+ }
+ }
+}
+
+static void Image_Resample24LerpLine (qbyte *in, qbyte *out, int inwidth, int outwidth)
+{
+ int j, xi, oldx = 0, f, fstep, endx, lerp;
+ fstep = (int) (inwidth*65536.0f/outwidth);
+ endx = (inwidth-1);
+ for (j = 0,f = 0;j < outwidth;j++, f += fstep)
+ {
+ xi = f >> 16;
+ if (xi != oldx)
+ {
+ in += (xi - oldx) * 3;
+ oldx = xi;
+ }
+ if (xi < endx)
+ {
+ lerp = f & 0xFFFF;
+ *out++ = (qbyte) ((((in[3] - in[0]) * lerp) >> 16) + in[0]);
+ *out++ = (qbyte) ((((in[4] - in[1]) * lerp) >> 16) + in[1]);
+ *out++ = (qbyte) ((((in[5] - in[2]) * lerp) >> 16) + in[2]);
+ }
+ else // last pixel of the line has no pixel to lerp to
+ {
+ *out++ = in[0];
+ *out++ = in[1];
+ *out++ = in[2];
+ }
+ }
+}
+
+int resamplerowsize = 0;
+qbyte *resamplerow1 = NULL;
+qbyte *resamplerow2 = NULL;
+mempool_t *resamplemempool = NULL;
+
+#define LERPBYTE(i) r = resamplerow1[i];out[i] = (qbyte) ((((resamplerow2[i] - r) * lerp) >> 16) + r)
+void Image_Resample32Lerp(void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
+{
+ int i, j, r, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth4 = inwidth*4, outwidth4 = outwidth*4;
+ qbyte *inrow, *out;
+ out = outdata;
+ fstep = (int) (inheight*65536.0f/outheight);
+
+ inrow = indata;
+ oldy = 0;
+ Image_Resample32LerpLine (inrow, resamplerow1, inwidth, outwidth);
+ Image_Resample32LerpLine (inrow + inwidth4, resamplerow2, inwidth, outwidth);
+ for (i = 0, f = 0;i < outheight;i++,f += fstep)
+ {
+ yi = f >> 16;
+ if (yi < endy)
+ {
+ lerp = f & 0xFFFF;
+ if (yi != oldy)
+ {
+ inrow = (qbyte *)indata + inwidth4*yi;
+ if (yi == oldy+1)
+ memcpy(resamplerow1, resamplerow2, outwidth4);
+ else
+ Image_Resample32LerpLine (inrow, resamplerow1, inwidth, outwidth);
+ Image_Resample32LerpLine (inrow + inwidth4, resamplerow2, inwidth, outwidth);
+ oldy = yi;
+ }
+ j = outwidth - 4;
+ while(j >= 0)
+ {
+ LERPBYTE( 0);
+ LERPBYTE( 1);
+ LERPBYTE( 2);
+ LERPBYTE( 3);
+ LERPBYTE( 4);
+ LERPBYTE( 5);
+ LERPBYTE( 6);
+ LERPBYTE( 7);
+ LERPBYTE( 8);
+ LERPBYTE( 9);
+ LERPBYTE(10);
+ LERPBYTE(11);
+ LERPBYTE(12);
+ LERPBYTE(13);
+ LERPBYTE(14);
+ LERPBYTE(15);
+ out += 16;
+ resamplerow1 += 16;
+ resamplerow2 += 16;
+ j -= 4;
+ }
+ if (j & 2)
+ {
+ LERPBYTE( 0);
+ LERPBYTE( 1);
+ LERPBYTE( 2);
+ LERPBYTE( 3);
+ LERPBYTE( 4);
+ LERPBYTE( 5);
+ LERPBYTE( 6);
+ LERPBYTE( 7);
+ out += 8;
+ resamplerow1 += 8;
+ resamplerow2 += 8;
+ }
+ if (j & 1)
+ {
+ LERPBYTE( 0);
+ LERPBYTE( 1);
+ LERPBYTE( 2);
+ LERPBYTE( 3);
+ out += 4;
+ resamplerow1 += 4;
+ resamplerow2 += 4;
+ }
+ resamplerow1 -= outwidth4;
+ resamplerow2 -= outwidth4;
+ }
+ else
+ {
+ if (yi != oldy)
+ {
+ inrow = (qbyte *)indata + inwidth4*yi;
+ if (yi == oldy+1)
+ memcpy(resamplerow1, resamplerow2, outwidth4);
+ else
+ Image_Resample32LerpLine (inrow, resamplerow1, inwidth, outwidth);
+ oldy = yi;
+ }
+ memcpy(out, resamplerow1, outwidth4);
+ }
+ }
+}
+
+void Image_Resample32Nearest(void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
+{
+ int i, j;
+ unsigned frac, fracstep;
+ // relies on int being 4 bytes
+ int *inrow, *out;
+ out = outdata;
+
+ fracstep = inwidth*0x10000/outwidth;
+ for (i = 0;i < outheight;i++)
+ {
+ inrow = (int *)indata + inwidth*(i*inheight/outheight);
+ frac = fracstep >> 1;
+ j = outwidth - 4;
+ while (j >= 0)
+ {
+ out[0] = inrow[frac >> 16];frac += fracstep;
+ out[1] = inrow[frac >> 16];frac += fracstep;
+ out[2] = inrow[frac >> 16];frac += fracstep;
+ out[3] = inrow[frac >> 16];frac += fracstep;
+ out += 4;
+ j -= 4;
+ }
+ if (j & 2)
+ {
+ out[0] = inrow[frac >> 16];frac += fracstep;
+ out[1] = inrow[frac >> 16];frac += fracstep;
+ out += 2;
+ }
+ if (j & 1)
+ {
+ out[0] = inrow[frac >> 16];frac += fracstep;
+ out += 1;
+ }
+ }
+}
+
+void Image_Resample24Lerp(void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
+{
+ int i, j, r, yi, oldy, f, fstep, lerp, endy = (inheight-1), inwidth3 = inwidth * 3, outwidth3 = outwidth * 3;
+ qbyte *inrow, *out;
+ out = outdata;
+ fstep = (int) (inheight*65536.0f/outheight);
+
+ inrow = indata;
+ oldy = 0;
+ Image_Resample24LerpLine (inrow, resamplerow1, inwidth, outwidth);
+ Image_Resample24LerpLine (inrow + inwidth3, resamplerow2, inwidth, outwidth);
+ for (i = 0, f = 0;i < outheight;i++,f += fstep)
+ {
+ yi = f >> 16;
+ if (yi < endy)
+ {
+ lerp = f & 0xFFFF;
+ if (yi != oldy)
+ {
+ inrow = (qbyte *)indata + inwidth3*yi;
+ if (yi == oldy+1)
+ memcpy(resamplerow1, resamplerow2, outwidth3);
+ else
+ Image_Resample24LerpLine (inrow, resamplerow1, inwidth, outwidth);
+ Image_Resample24LerpLine (inrow + inwidth3, resamplerow2, inwidth, outwidth);
+ oldy = yi;
+ }
+ j = outwidth - 4;
+ while(j >= 0)
+ {
+ LERPBYTE( 0);
+ LERPBYTE( 1);
+ LERPBYTE( 2);
+ LERPBYTE( 3);
+ LERPBYTE( 4);
+ LERPBYTE( 5);
+ LERPBYTE( 6);
+ LERPBYTE( 7);
+ LERPBYTE( 8);
+ LERPBYTE( 9);
+ LERPBYTE(10);
+ LERPBYTE(11);
+ out += 12;
+ resamplerow1 += 12;
+ resamplerow2 += 12;
+ j -= 4;
+ }
+ if (j & 2)
+ {
+ LERPBYTE( 0);
+ LERPBYTE( 1);
+ LERPBYTE( 2);
+ LERPBYTE( 3);
+ LERPBYTE( 4);
+ LERPBYTE( 5);
+ out += 6;
+ resamplerow1 += 6;
+ resamplerow2 += 6;
+ }
+ if (j & 1)
+ {
+ LERPBYTE( 0);
+ LERPBYTE( 1);
+ LERPBYTE( 2);
+ out += 3;
+ resamplerow1 += 3;
+ resamplerow2 += 3;
+ }
+ resamplerow1 -= outwidth3;
+ resamplerow2 -= outwidth3;
+ }
+ else
+ {
+ if (yi != oldy)
+ {
+ inrow = (qbyte *)indata + inwidth3*yi;
+ if (yi == oldy+1)
+ memcpy(resamplerow1, resamplerow2, outwidth3);
+ else
+ Image_Resample24LerpLine (inrow, resamplerow1, inwidth, outwidth);
+ oldy = yi;
+ }
+ memcpy(out, resamplerow1, outwidth3);
+ }
+ }
+}
+
+void Image_Resample24Nolerp(void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
+{
+ int i, j, f, inwidth3 = inwidth * 3;
+ unsigned frac, fracstep;
+ qbyte *inrow, *out;
+ out = outdata;
+
+ fracstep = inwidth*0x10000/outwidth;
+ for (i = 0;i < outheight;i++)
+ {
+ inrow = (qbyte *)indata + inwidth3*(i*inheight/outheight);
+ frac = fracstep >> 1;
+ j = outwidth - 4;
+ while (j >= 0)
+ {
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ j -= 4;
+ }
+ if (j & 2)
+ {
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ out += 2;
+ }
+ if (j & 1)
+ {
+ f = (frac >> 16)*3;*out++ = inrow[f+0];*out++ = inrow[f+1];*out++ = inrow[f+2];frac += fracstep;
+ out += 1;
+ }
+ }
+}
+
+/*
+================
+Image_Resample
+================
+*/
+void Image_Resample (void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight, int bytesperpixel, int quality)
+{
+ if (resamplerowsize < outwidth*4)
+ {
+ if (resamplerow1)
+ Mem_Free(resamplerow1);
+ resamplerowsize = outwidth*4;
+ if (!resamplemempool)
+ resamplemempool = Mem_AllocPool("Image Scaling Buffer");
+ resamplerow1 = Mem_Alloc(resamplemempool, resamplerowsize*2);
+ resamplerow2 = resamplerow1 + resamplerowsize;
+ }
+ if (bytesperpixel == 4)
+ {
+ if (quality)
+ Image_Resample32Lerp(indata, inwidth, inheight, outdata, outwidth, outheight);
+ else
+ Image_Resample32Nearest(indata, inwidth, inheight, outdata, outwidth, outheight);
+ }
+ else if (bytesperpixel == 3)
+ {
+ if (quality)
+ Image_Resample24Lerp(indata, inwidth, inheight, outdata, outwidth, outheight);
+ else
+ Image_Resample24Nolerp(indata, inwidth, inheight, outdata, outwidth, outheight);
+ }
+ else
+ Sys_Error("Image_Resample: unsupported bytesperpixel %i\n", bytesperpixel);
+}
+
+// in can be the same as out
+void Image_MipReduce(qbyte *in, qbyte *out, int *width, int *height, int destwidth, int destheight, int bytesperpixel)
+{
+ int x, y, nextrow;
+ nextrow = *width * bytesperpixel;
+ if (*width > destwidth)
+ {
+ *width >>= 1;
+ if (*height > destheight)
+ {
+ // reduce both
+ *height >>= 1;
+ if (bytesperpixel == 4)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[4] + in[nextrow ] + in[nextrow+4]) >> 2);
+ out[1] = (qbyte) ((in[1] + in[5] + in[nextrow+1] + in[nextrow+5]) >> 2);
+ out[2] = (qbyte) ((in[2] + in[6] + in[nextrow+2] + in[nextrow+6]) >> 2);
+ out[3] = (qbyte) ((in[3] + in[7] + in[nextrow+3] + in[nextrow+7]) >> 2);
+ out += 4;
+ in += 8;
+ }
+ in += nextrow; // skip a line
+ }
+ }
+ else if (bytesperpixel == 3)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[3] + in[nextrow ] + in[nextrow+3]) >> 2);
+ out[1] = (qbyte) ((in[1] + in[4] + in[nextrow+1] + in[nextrow+4]) >> 2);
+ out[2] = (qbyte) ((in[2] + in[5] + in[nextrow+2] + in[nextrow+5]) >> 2);
+ out += 3;
+ in += 6;
+ }
+ in += nextrow; // skip a line
+ }
+ }
+ else
+ Sys_Error("Image_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel);
+ }
+ else
+ {
+ // reduce width
+ if (bytesperpixel == 4)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[4]) >> 1);
+ out[1] = (qbyte) ((in[1] + in[5]) >> 1);
+ out[2] = (qbyte) ((in[2] + in[6]) >> 1);
+ out[3] = (qbyte) ((in[3] + in[7]) >> 1);
+ out += 4;
+ in += 8;
+ }
+ }
+ }
+ else if (bytesperpixel == 3)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[3]) >> 1);
+ out[1] = (qbyte) ((in[1] + in[4]) >> 1);
+ out[2] = (qbyte) ((in[2] + in[5]) >> 1);
+ out += 3;
+ in += 6;
+ }
+ }
+ }
+ else
+ Sys_Error("Image_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel);
+ }
+ }
+ else
+ {
+ if (*height > destheight)
+ {
+ // reduce height
+ *height >>= 1;
+ if (bytesperpixel == 4)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[nextrow ]) >> 1);
+ out[1] = (qbyte) ((in[1] + in[nextrow+1]) >> 1);
+ out[2] = (qbyte) ((in[2] + in[nextrow+2]) >> 1);
+ out[3] = (qbyte) ((in[3] + in[nextrow+3]) >> 1);
+ out += 4;
+ in += 4;
+ }
+ in += nextrow; // skip a line
+ }
+ }
+ else if (bytesperpixel == 3)
+ {
+ for (y = 0;y < *height;y++)
+ {
+ for (x = 0;x < *width;x++)
+ {
+ out[0] = (qbyte) ((in[0] + in[nextrow ]) >> 1);
+ out[1] = (qbyte) ((in[1] + in[nextrow+1]) >> 1);
+ out[2] = (qbyte) ((in[2] + in[nextrow+2]) >> 1);
+ out += 3;
+ in += 3;
+ }
+ in += nextrow; // skip a line
+ }
+ }
+ else
+ Sys_Error("Image_MipReduce: unsupported bytesperpixel %i\n", bytesperpixel);
+ }
+ else
+ Sys_Error("Image_MipReduce: desired size already achieved\n");
+ }
+}
projects / xonotic / darkplaces.git / blobdiff