]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - image.c
build: minor adjustments
[xonotic/darkplaces.git] / image.c
diff --git a/image.c b/image.c
index 2f805795b4c32f6e2da79f05e8e59a4e5f3a1528..15835797ecde5bf6c2df3ed18f4402a55a724a5d 100644 (file)
--- a/image.c
+++ b/image.c
@@ -4,13 +4,24 @@
 #include "jpeg.h"
 #include "image_png.h"
 #include "r_shadow.h"
+#include "wad.h"
 
 int            image_width;
 int            image_height;
 
+static unsigned char *Image_GetEmbeddedPicBGRA(const char *name);
+
+static void Image_CopyAlphaFromBlueBGRA(unsigned char *outpixels, const unsigned char *inpixels, int w, int h)
+{
+       int i, n;
+       n = w * h;
+       for(i = 0; i < n; ++i)
+               outpixels[4*i+3] = inpixels[4*i]; // blue channel
+}
+
 #if 1
-// written by LordHavoc in a readable way, optimized by Vic, further optimized by LordHavoc (the non-special index case), readable version preserved below this
-void Image_CopyMux(unsigned char *outpixels, const unsigned char *inpixels, int inputwidth, int inputheight, qboolean inputflipx, qboolean inputflipy, qboolean inputflipdiagonal, int numoutputcomponents, int numinputcomponents, int *outputinputcomponentindices)
+// written by LadyHavoc in a readable way, optimized by Vic, further optimized by LadyHavoc (the non-special index case), readable version preserved below this
+void Image_CopyMux(unsigned char *outpixels, const unsigned char *inpixels, int inputwidth, int inputheight, qbool inputflipx, qbool inputflipy, qbool inputflipdiagonal, int numoutputcomponents, int numinputcomponents, int *outputinputcomponentindices)
 {
        int index, c, x, y;
        const unsigned char *in, *line;
@@ -59,7 +70,7 @@ void Image_CopyMux(unsigned char *outpixels, const unsigned char *inpixels, int
 }
 #else
 // intentionally readable version
-void Image_CopyMux(unsigned char *outpixels, const unsigned char *inpixels, int inputwidth, int inputheight, qboolean inputflipx, qboolean inputflipy, qboolean inputflipdiagonal, int numoutputcomponents, int numinputcomponents, int *outputinputcomponentindices)
+void Image_CopyMux(unsigned char *outpixels, const unsigned char *inpixels, int inputwidth, int inputheight, qbool inputflipx, qbool inputflipy, qbool inputflipdiagonal, int numoutputcomponents, int numinputcomponents, int *outputinputcomponentindices)
 {
        int index, c, x, y;
        const unsigned char *in, *inrow, *incolumn;
@@ -181,7 +192,7 @@ typedef struct pcx_s
 LoadPCX
 ============
 */
-unsigned char* LoadPCX_BGRA (const unsigned char *f, int filesize)
+static unsigned char* LoadPCX_BGRA (const unsigned char *f, int filesize, int *miplevel)
 {
        pcx_t pcx;
        unsigned char *a, *b, *image_buffer, *pbuf;
@@ -199,7 +210,7 @@ unsigned char* LoadPCX_BGRA (const unsigned char *f, int filesize)
        memcpy(&pcx, fin, sizeof(pcx));
        fin += sizeof(pcx);
 
-       // LordHavoc: big-endian support ported from QF newtree
+       // LadyHavoc: big-endian support ported from QF newtree
        pcx.xmax = LittleShort (pcx.xmax);
        pcx.xmin = LittleShort (pcx.xmin);
        pcx.ymax = LittleShort (pcx.ymax);
@@ -211,7 +222,7 @@ unsigned char* LoadPCX_BGRA (const unsigned char *f, int filesize)
 
        image_width = pcx.xmax + 1 - pcx.xmin;
        image_height = pcx.ymax + 1 - pcx.ymin;
-       if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
+       if (pcx.manufacturer != 0x0a || pcx.version != 5 || pcx.encoding != 1 || pcx.bits_per_pixel != 8 || image_width > 32768 || image_height > 32768 || image_width <= 0 || image_height <= 0)
        {
                Con_Print("Bad pcx file\n");
                return NULL;
@@ -272,7 +283,7 @@ unsigned char* LoadPCX_BGRA (const unsigned char *f, int filesize)
 LoadPCX
 ============
 */
-qboolean LoadPCX_QWSkin(const unsigned char *f, int filesize, unsigned char *pixels, int outwidth, int outheight)
+qbool LoadPCX_QWSkin(const unsigned char *f, int filesize, unsigned char *pixels, int outwidth, int outheight)
 {
        pcx_t pcx;
        unsigned char *a;
@@ -289,7 +300,7 @@ qboolean LoadPCX_QWSkin(const unsigned char *f, int filesize, unsigned char *pix
        memcpy(&pcx, fin, sizeof(pcx));
        fin += sizeof(pcx);
 
-       // LordHavoc: big-endian support ported from QF newtree
+       // LadyHavoc: big-endian support ported from QF newtree
        pcx.xmax = LittleShort (pcx.xmax);
        pcx.xmin = LittleShort (pcx.xmin);
        pcx.ymax = LittleShort (pcx.ymax);
@@ -346,6 +357,19 @@ qboolean LoadPCX_QWSkin(const unsigned char *f, int filesize, unsigned char *pix
        return true;
 }
 
+/*
+============
+LoadPCX
+============
+*/
+qbool LoadPCX_PaletteOnly(const unsigned char *f, int filesize, unsigned char *palette768b)
+{
+       if (filesize < 768)
+               return false;
+       memcpy(palette768b, f + filesize - 768, 768);
+       return true;
+}
+
 /*
 =========================================================
 
@@ -364,7 +388,7 @@ typedef struct _TargaHeader
 }
 TargaHeader;
 
-void PrintTargaHeader(TargaHeader *t)
+static void PrintTargaHeader(TargaHeader *t)
 {
        Con_Printf("TargaHeader:\nuint8 id_length = %i;\nuint8 colormap_type = %i;\nuint8 image_type = %i;\nuint16 colormap_index = %i;\nuint16 colormap_length = %i;\nuint8 colormap_size = %i;\nuint16 x_origin = %i;\nuint16 y_origin = %i;\nuint16 width = %i;\nuint16 height = %i;\nuint8 pixel_size = %i;\nuint8 attributes = %i;\n", t->id_length, t->colormap_type, t->image_type, t->colormap_index, t->colormap_length, t->colormap_size, t->x_origin, t->y_origin, t->width, t->height, t->pixel_size, t->attributes);
 }
@@ -374,7 +398,7 @@ void PrintTargaHeader(TargaHeader *t)
 LoadTGA
 =============
 */
-unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize)
+unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize, int *miplevel)
 {
        int x, y, pix_inc, row_inci, runlen, alphabits;
        unsigned char *image_buffer;
@@ -408,13 +432,15 @@ unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize)
        targa_header.pixel_size = f[16];
        targa_header.attributes = f[17];
 
-       if (image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
+       if (image_width > 32768 || image_height > 32768 || image_width <= 0 || image_height <= 0)
        {
                Con_Print("LoadTGA: invalid size\n");
                PrintTargaHeader(&targa_header);
                return NULL;
        }
 
+       memset(palettei, 0, sizeof(palettei));
+
        // advance to end of header
        fin = f + 18;
 
@@ -529,8 +555,6 @@ unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize)
                row_inci = 0;
        }
 
-       x = 0;
-       y = 0;
        pix_inc = 1;
        if ((targa_header.image_type & ~8) == 2)
                pix_inc = (targa_header.pixel_size + 7) / 8;
@@ -601,6 +625,13 @@ unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize)
                                                *pixbufi++ = palettei[*fin++];
                                }
                        }
+
+                       if (x != image_width)
+                       {
+                               // pixbufi is useless now
+                               Con_Printf("LoadTGA: corrupt file\n");
+                               break;
+                       }
                }
                break;
        case 10:
@@ -649,6 +680,13 @@ unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize)
                                                }
                                        }
                                }
+
+                               if (x != image_width)
+                               {
+                                       // pixbufi is useless now
+                                       Con_Printf("LoadTGA: corrupt file\n");
+                                       break;
+                               }
                        }
                }
                else
@@ -695,6 +733,13 @@ unsigned char *LoadTGA_BGRA (const unsigned char *f, int filesize)
                                                }
                                        }
                                }
+
+                               if (x != image_width)
+                               {
+                                       // pixbufi is useless now
+                                       Con_Printf("LoadTGA: corrupt file\n");
+                                       break;
+                               }
                        }
                }
                break;
@@ -717,7 +762,7 @@ typedef struct q2wal_s
        int                     value;
 } q2wal_t;
 
-unsigned char *LoadWAL_BGRA (const unsigned char *f, int filesize)
+static unsigned char *LoadWAL_BGRA (const unsigned char *f, int filesize, int *miplevel)
 {
        unsigned char *image_buffer;
        const q2wal_t *inwal = (const q2wal_t *)f;
@@ -730,13 +775,13 @@ unsigned char *LoadWAL_BGRA (const unsigned char *f, int filesize)
 
        image_width = LittleLong(inwal->width);
        image_height = LittleLong(inwal->height);
-       if (image_width > 4096 || image_height > 4096 || image_width <= 0 || image_height <= 0)
+       if (image_width > 32768 || image_height > 32768 || image_width <= 0 || image_height <= 0)
        {
                Con_Printf("LoadWAL: invalid size %ix%i\n", image_width, image_height);
                return NULL;
        }
 
-       if (filesize < (int) sizeof(q2wal_t) + (int) LittleLong(inwal->offsets[0]) + image_width * image_height)
+       if (filesize < (int) LittleLong(inwal->offsets[0]) + image_width * image_height)
        {
                Con_Print("LoadWAL: invalid WAL file\n");
                return NULL;
@@ -748,10 +793,122 @@ unsigned char *LoadWAL_BGRA (const unsigned char *f, int filesize)
                Con_Printf("LoadWAL: not enough memory for %i by %i image\n", image_width, image_height);
                return NULL;
        }
-       Image_Copy8bitBGRA(f + LittleLong(inwal->offsets[0]), image_buffer, image_width * image_height, palette_bgra_complete);
+       Image_Copy8bitBGRA(f + LittleLong(inwal->offsets[0]), image_buffer, image_width * image_height, q2palette_bgra_complete);
        return image_buffer;
 }
 
+qbool LoadWAL_GetMetadata(const unsigned char *f, int filesize, int *retwidth, int *retheight, int *retflags, int *retvalue, int *retcontents, char *retanimname32c)
+{
+       const q2wal_t *inwal = (const q2wal_t *)f;
+
+       if (filesize < (int) sizeof(q2wal_t))
+       {
+               Con_Print("LoadWAL: invalid WAL file\n");
+               if (retwidth)
+                       *retwidth = 16;
+               if (retheight)
+                       *retheight = 16;
+               if (retflags)
+                       *retflags = 0;
+               if (retvalue)
+                       *retvalue = 0;
+               if (retcontents)
+                       *retcontents = 0;
+               if (retanimname32c)
+                       memset(retanimname32c, 0, 32);
+               return false;
+       }
+
+       if (retwidth)
+               *retwidth = LittleLong(inwal->width);
+       if (retheight)
+               *retheight = LittleLong(inwal->height);
+       if (retflags)
+               *retflags = LittleLong(inwal->flags);
+       if (retvalue)
+               *retvalue = LittleLong(inwal->value);
+       if (retcontents)
+               *retcontents = LittleLong(inwal->contents);
+       if (retanimname32c)
+       {
+               memcpy(retanimname32c, inwal->animname, 32);
+               retanimname32c[31] = 0;
+       }
+       return true;
+}
+
+// gfx/* wad lumps and gfx/*.lmp files are simply width and height and paletted pixels, with color 255 as transparent
+static unsigned char* LoadLMP_BGRA(const unsigned char *f, int filesize, int *miplevel)
+{
+       unsigned char *image_buffer;
+       int i;
+
+       if (filesize < 9)
+       {
+               Con_Print("Bad lmp file\n");
+               return NULL;
+       }
+
+       image_width = f[0] + f[1] * 0x100 + f[2] * 0x10000 + f[3] * 0x1000000;
+       image_height = f[4] + f[5] * 0x100 + f[6] * 0x10000 + f[7] * 0x1000000;
+
+       if (image_width > 32768 || image_height > 32768 || image_width <= 0 || image_height <= 0 || image_width * image_height > filesize - 8)
+       {
+               Con_Print("Bad lmp file\n");
+               return NULL;
+       }
+
+       image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width*image_height * 4);
+       if (!image_buffer)
+       {
+               Con_Printf("LoadLMP: not enough memory for %i by %i image\n", image_width, image_height);
+               return NULL;
+       }
+
+       for (i = 0; i < image_width * image_height; i++)
+       {
+               const unsigned char *p = (const unsigned char *)palette_bgra_transparent + 4 * f[8 + i];
+               image_buffer[i * 4 + 0] = p[0];
+               image_buffer[i * 4 + 1] = p[1];
+               image_buffer[i * 4 + 2] = p[2];
+               image_buffer[i * 4 + 3] = p[3];
+       }
+
+       return image_buffer;
+}
+
+// gfx/conchars is a raw 128x128 image with 0 as transparent color rather than 255
+static unsigned char *LoadConChars_BGRA(const unsigned char *f, int filesize, int *miplevel)
+{
+       unsigned char *image_buffer;
+       int i;
+
+       image_width = 128;
+       image_height = 128;
+       if (image_width * image_height > filesize)
+       {
+               Con_Print("Bad lmp file\n");
+               return NULL;
+       }
+
+       image_buffer = (unsigned char *)Mem_Alloc(tempmempool, image_width*image_height * 4);
+       if (!image_buffer)
+       {
+               Con_Printf("LoadConChars: not enough memory for %i by %i image\n", image_width, image_height);
+               return NULL;
+       }
+
+       for (i = 0; i < image_width * image_height; i++)
+       {
+               const unsigned char *p = (const unsigned char *)palette_bgra_font + 4 * f[i];
+               image_buffer[i * 4 + 0] = p[0];
+               image_buffer[i * 4 + 1] = p[1];
+               image_buffer[i * 4 + 2] = p[2];
+               image_buffer[i * 4 + 3] = p[3];
+       }
+
+       return image_buffer;
+}
 
 void Image_StripImageExtension (const char *in, char *out, size_t size_out)
 {
@@ -761,16 +918,51 @@ void Image_StripImageExtension (const char *in, char *out, size_t size_out)
                return;
 
        ext = FS_FileExtension(in);
-       if (ext && (!strcmp(ext, "tga") || !strcmp(ext, "pcx") || !strcmp(ext, "lmp") || !strcmp(ext, "png") || !strcmp(ext, "jpg")))
+       if (ext && (!strcmp(ext, "tga") || !strcmp(ext, "pcx") || !strcmp(ext, "lmp") || !strcmp(ext, "png") || !strcmp(ext, "jpg") || !strcmp(ext, "wal")))
                FS_StripExtension(in, out, size_out);
        else
-               strlcpy(out, in, size_out);
+               dp_strlcpy(out, in, size_out);
+}
+
+static unsigned char image_linearfromsrgb[256];
+static unsigned char image_srgbfromlinear_lightmap[256];
+
+void Image_MakeLinearColorsFromsRGB(unsigned char *pout, const unsigned char *pin, int numpixels)
+{
+       int i;
+       // this math from http://www.opengl.org/registry/specs/EXT/texture_sRGB.txt
+       if (!image_linearfromsrgb[255])
+               for (i = 0;i < 256;i++)
+                       image_linearfromsrgb[i] = (unsigned char)floor(Image_LinearFloatFromsRGB(i) * 255.0f + 0.5f);
+       for (i = 0;i < numpixels;i++)
+       {
+               pout[i*4+0] = image_linearfromsrgb[pin[i*4+0]];
+               pout[i*4+1] = image_linearfromsrgb[pin[i*4+1]];
+               pout[i*4+2] = image_linearfromsrgb[pin[i*4+2]];
+               pout[i*4+3] = pin[i*4+3];
+       }
+}
+
+void Image_MakesRGBColorsFromLinear_Lightmap(unsigned char *pout, const unsigned char *pin, int numpixels)
+{
+       int i;
+       // this math from http://www.opengl.org/registry/specs/EXT/texture_sRGB.txt
+       if (!image_srgbfromlinear_lightmap[255])
+               for (i = 0;i < 256;i++)
+                       image_srgbfromlinear_lightmap[i] = (unsigned char)floor(bound(0.0f, Image_sRGBFloatFromLinear_Lightmap(i), 1.0f) * 255.0f + 0.5f);
+       for (i = 0;i < numpixels;i++)
+       {
+               pout[i*4+0] = image_srgbfromlinear_lightmap[pin[i*4+0]];
+               pout[i*4+1] = image_srgbfromlinear_lightmap[pin[i*4+1]];
+               pout[i*4+2] = image_srgbfromlinear_lightmap[pin[i*4+2]];
+               pout[i*4+3] = pin[i*4+3];
+       }
 }
 
 typedef struct imageformat_s
 {
        const char *formatstring;
-       unsigned char *(*loadfunc)(const unsigned char *f, int filesize);
+       unsigned char *(*loadfunc)(const unsigned char *f, int filesize, int *miplevel);
 }
 imageformat_t;
 
@@ -833,6 +1025,7 @@ imageformat_t imageformats_gfx[] =
        {"%s.png", PNG_LoadImage_BGRA},
        {"%s.jpg", JPEG_LoadImage_BGRA},
        {"%s.pcx", LoadPCX_BGRA},
+       {"%s.lmp", LoadLMP_BGRA},
        {NULL, NULL}
 };
 
@@ -842,16 +1035,19 @@ imageformat_t imageformats_other[] =
        {"%s.png", PNG_LoadImage_BGRA},
        {"%s.jpg", JPEG_LoadImage_BGRA},
        {"%s.pcx", LoadPCX_BGRA},
+       {"%s.lmp", LoadLMP_BGRA},
        {NULL, NULL}
 };
 
 int fixtransparentpixels(unsigned char *data, int w, int h);
-unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qboolean allowFixtrans)
+unsigned char *loadimagepixelsbgra (const char *filename, qbool complain, qbool allowFixtrans, qbool convertsRGB, int *miplevel)
 {
        fs_offset_t filesize;
        imageformat_t *firstformat, *format;
-       unsigned char *f, *data = NULL;
-       char basename[MAX_QPATH], name[MAX_QPATH], *c;
+       int mymiplevel;
+       unsigned char *f, *data = NULL, *data2 = NULL;
+       char basename[MAX_QPATH], name[MAX_QPATH], name2[MAX_QPATH], path[MAX_QPATH], afterpath[MAX_QPATH], *c;
+       char vabuf[1024];
        //if (developer_memorydebug.integer)
        //      Mem_CheckSentinelsGlobal();
        if (developer_texturelogging.integer)
@@ -861,23 +1057,26 @@ unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qbo
        for (c = basename;*c;c++)
                if (*c == '*')
                        *c = '#';
+       path[0] = 0;
        name[0] = 0;
+       dp_strlcpy(afterpath, basename, sizeof(afterpath));
        if (strchr(basename, '/'))
        {
                int i;
-               for (i = 0;i < (int)sizeof(name)-1 && basename[i] != '/';i++)
-                       name[i] = basename[i];
-               name[i] = 0;
+               for (i = 0;i < (int)sizeof(path)-1 && basename[i] != '/' && basename[i];i++)
+                       path[i] = basename[i];
+               path[i] = 0;
+               dp_strlcpy(afterpath, basename + i + 1, sizeof(afterpath));
        }
        if (gamemode == GAME_TENEBRAE)
                firstformat = imageformats_tenebrae;
        else if (gamemode == GAME_DELUXEQUAKE)
                firstformat = imageformats_dq;
-       else if (!strcasecmp(name, "textures"))
+       else if (!strcasecmp(path, "textures"))
                firstformat = imageformats_textures;
-       else if (!strcasecmp(name, "gfx"))
+       else if (!strcasecmp(path, "gfx") || !strcasecmp(path, "locale")) // locale/ is used in GAME_BLOODOMNICIDE
                firstformat = imageformats_gfx;
-       else if (!strchr(basename, '/'))
+       else if (!path[0])
                firstformat = imageformats_nopath;
        else
                firstformat = imageformats_other;
@@ -885,15 +1084,43 @@ unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qbo
        for (format = firstformat;format->formatstring;format++)
        {
                dpsnprintf (name, sizeof(name), format->formatstring, basename);
-               f = FS_LoadFile(name, tempmempool, true, &filesize);
-               if (f)
+
+               FS_SanitizePath(name);
+
+               if(FS_FileExists(name) && (f = FS_LoadFile(name, tempmempool, true, &filesize)) != NULL)
                {
-                       data = format->loadfunc(f, filesize);
+                       mymiplevel = miplevel ? *miplevel : 0;
+                       image_width = 0;
+                       image_height = 0;
+                       data = format->loadfunc(f, (int)filesize, &mymiplevel);
                        Mem_Free(f);
                        if (data)
                        {
-                               if (developer.integer >= 10)
-                                       Con_Printf("loaded image %s (%dx%d)\n", name, image_width, image_height);
+                               if(format->loadfunc == JPEG_LoadImage_BGRA) // jpeg can't do alpha, so let's simulate it by loading another jpeg
+                               {
+                                       dpsnprintf (name2, sizeof(name2), format->formatstring, va(vabuf, sizeof(vabuf), "%s_alpha", basename));
+                                       f = FS_LoadFile(name2, tempmempool, true, &filesize);
+                                       if(f)
+                                       {
+                                               int mymiplevel2 = miplevel ? *miplevel : 0;
+                                               int image_width_save = image_width;
+                                               int image_height_save = image_height;
+                                               data2 = format->loadfunc(f, (int)filesize, &mymiplevel2);
+                                               if(data2 && mymiplevel == mymiplevel2 && image_width == image_width_save && image_height == image_height_save)
+                                                       Image_CopyAlphaFromBlueBGRA(data, data2, image_width, image_height);
+                                               else
+                                                       Con_Printf("loadimagepixelsrgba: corrupt or invalid alpha image %s_alpha\n", basename);
+                                               image_width = image_width_save;
+                                               image_height = image_height_save;
+                                               if(data2)
+                                                       Mem_Free(data2);
+                                               Mem_Free(f);
+                                       }
+                               }
+                               if (developer_loading.integer)
+                                       Con_DPrintf("loaded image %s (%dx%d)\n", name, image_width, image_height);
+                               if(miplevel)
+                                       *miplevel = mymiplevel;
                                //if (developer_memorydebug.integer)
                                //      Mem_CheckSentinelsGlobal();
                                if(allowFixtrans && r_fixtrans_auto.integer)
@@ -912,12 +1139,41 @@ unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qbo
                                                }
                                        }
                                }
+                               if (convertsRGB)
+                                       Image_MakeLinearColorsFromsRGB(data, data, image_width * image_height);
                                return data;
                        }
                        else
                                Con_DPrintf("Error loading image %s (file loaded but decode failed)\n", name);
                }
        }
+       if (!strcasecmp(path, "gfx"))
+       {
+               unsigned char *lmpdata;
+               if ((lmpdata = W_GetLumpName(afterpath, &filesize)))
+               {
+                       if (developer_loading.integer)
+                               Con_Printf("loading gfx.wad lump \"%s\"\n", afterpath);
+
+                       mymiplevel = miplevel ? *miplevel : 0;
+                       if (!strcmp(afterpath, "conchars"))
+                       {
+                               // conchars is a raw image and with color 0 as transparent instead of 255
+                               data = LoadConChars_BGRA(lmpdata, filesize, &mymiplevel);
+                       }
+                       else
+                               data = LoadLMP_BGRA(lmpdata, filesize, &mymiplevel);
+                       // no cleanup after looking up a wad lump - the whole gfx.wad is loaded at once
+                       if (data)
+                               return data;
+                       Con_DPrintf("Error loading image %s (file loaded but decode failed)\n", name);
+               }
+       }
+
+       // check if the image name exists as an embedded pic
+       if ((data = Image_GetEmbeddedPicBGRA(basename)))
+               return data;
+
        if (complain)
        {
                Con_Printf("Couldn't load %s using ", filename);
@@ -933,16 +1189,67 @@ unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qbo
 
        //if (developer_memorydebug.integer)
        //      Mem_CheckSentinelsGlobal();
+
        return NULL;
 }
 
-rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, qboolean complain, int flags, qboolean allowFixtrans)
+qbool Image_GetStockPicSize(const char *filename, int *returnwidth, int *returnheight)
+{
+       unsigned char *data;
+       fs_offset_t filesize;
+       char lmppath[MAX_QPATH];
+       if (!strcasecmp(filename, "gfx/conchars"))
+       {
+               *returnwidth = 128;
+               *returnheight = 128;
+               return true;
+       }
+
+       dpsnprintf(lmppath, sizeof(lmppath), "%s.lmp", filename);
+       data = FS_LoadFile(lmppath, tempmempool, true, &filesize);
+       if (data)
+       {
+               if (filesize > 8)
+               {
+                       int w = data[0] + data[1] * 0x100 + data[2] * 0x10000 + data[3] * 0x1000000;
+                       int h = data[4] + data[5] * 0x100 + data[6] * 0x10000 + data[7] * 0x1000000;
+                       if (w >= 1 && w <= 32768 && h >= 1 && h <= 32768)
+                       {
+                               *returnwidth = w;
+                               *returnheight = h;
+                               Mem_Free(data);
+                               return true;
+                       }
+               }
+               Mem_Free(data);
+       }
+       if (!strncasecmp(filename, "gfx/", 4))
+       {
+               data = W_GetLumpName(filename + 4, &filesize);
+               if (data && filesize > 8)
+               {
+                       int w = data[0] + data[1] * 0x100 + data[2] * 0x10000 + data[3] * 0x1000000;
+                       int h = data[4] + data[5] * 0x100 + data[6] * 0x10000 + data[7] * 0x1000000;
+                       if (w >= 1 && w <= 32768 && h >= 1 && h <= 32768)
+                       {
+                               *returnwidth = w;
+                               *returnheight = h;
+                               return true;
+                       }
+               }
+       }
+       return false;
+}
+
+extern cvar_t gl_picmip;
+rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, qbool complain, int flags, qbool allowFixtrans, qbool sRGB)
 {
        unsigned char *data;
        rtexture_t *rt;
-       if (!(data = loadimagepixelsbgra (filename, complain, allowFixtrans)))
+       int miplevel = R_PicmipForFlags(flags);
+       if (!(data = loadimagepixelsbgra (filename, complain, allowFixtrans, false, &miplevel)))
                return 0;
-       rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, TEXTYPE_BGRA, flags, NULL);
+       rt = R_LoadTexture2D(pool, filename, image_width, image_height, data, sRGB ? TEXTYPE_SRGB_BGRA : TEXTYPE_BGRA, flags, miplevel, NULL);
        Mem_Free(data);
        return rt;
 }
@@ -1066,20 +1373,20 @@ int fixtransparentpixels(unsigned char *data, int w, int h)
        return changedPixels;
 }
 
-void Image_FixTransparentPixels_f(void)
+void Image_FixTransparentPixels_f(cmd_state_t *cmd)
 {
        const char *filename, *filename_pattern;
        fssearch_t *search;
        int i, n;
        char outfilename[MAX_QPATH], buf[MAX_QPATH];
        unsigned char *data;
-       if(Cmd_Argc() != 2)
+       if(Cmd_Argc(cmd) != 2)
        {
-               Con_Printf("Usage: %s imagefile\n", Cmd_Argv(0));
+               Con_Printf("Usage: %s imagefile\n", Cmd_Argv(cmd, 0));
                return;
        }
-       filename_pattern = Cmd_Argv(1);
-       search = FS_Search(filename_pattern, true, true);
+       filename_pattern = Cmd_Argv(cmd, 1);
+       search = FS_Search(filename_pattern, true, true, NULL);
        if(!search)
                return;
        for(i = 0; i < search->numfilenames; ++i)
@@ -1088,7 +1395,7 @@ void Image_FixTransparentPixels_f(void)
                Con_Printf("Processing %s... ", filename);
                Image_StripImageExtension(filename, buf, sizeof(buf));
                dpsnprintf(outfilename, sizeof(outfilename), "fixtrans/%s.tga", buf);
-               if(!(data = loadimagepixelsbgra(filename, true, false)))
+               if(!(data = loadimagepixelsbgra(filename, true, false, false, NULL)))
                        return;
                if((n = fixtransparentpixels(data, image_width, image_height)))
                {
@@ -1102,9 +1409,12 @@ void Image_FixTransparentPixels_f(void)
        FS_FreeSearch(search);
 }
 
-qboolean Image_WriteTGABGR_preflipped (const char *filename, int width, int height, const unsigned char *data, unsigned char *buffer)
+qbool Image_WriteTGABGR_preflipped (const char *filename, int width, int height, const unsigned char *data)
 {
-       qboolean ret;
+       qbool ret;
+       unsigned char buffer[18];
+       const void *buffers[2];
+       fs_offset_t sizes[2];
 
        memset (buffer, 0, 18);
        buffer[2] = 2;          // uncompressed type
@@ -1114,18 +1424,21 @@ qboolean Image_WriteTGABGR_preflipped (const char *filename, int width, int heig
        buffer[15] = (height >> 8) & 0xFF;
        buffer[16] = 24;        // pixel size
 
-       // swap rgb to bgr
-       memcpy(buffer + 18, data, width*height*3);
-       ret = FS_WriteFile (filename, buffer, width*height*3 + 18 );
+       buffers[0] = buffer;
+       sizes[0] = 18;
+       buffers[1] = data;
+       sizes[1] = width*height*3;
+       ret = FS_WriteFileInBlocks(filename, buffers, sizes, 2);
 
        return ret;
 }
 
-void Image_WriteTGABGRA (const char *filename, int width, int height, const unsigned char *data)
+qbool Image_WriteTGABGRA (const char *filename, int width, int height, const unsigned char *data)
 {
        int y;
        unsigned char *buffer, *out;
        const unsigned char *in, *end;
+       qbool ret;
 
        buffer = (unsigned char *)Mem_Alloc(tempmempool, width*height*4 + 18);
 
@@ -1174,9 +1487,11 @@ void Image_WriteTGABGRA (const char *filename, int width, int height, const unsi
                        }
                }
        }
-       FS_WriteFile (filename, buffer, out - buffer);
+       ret = FS_WriteFile (filename, buffer, out - buffer);
 
        Mem_Free(buffer);
+
+       return ret;
 }
 
 static void Image_Resample32LerpLine (const unsigned char *in, unsigned char *out, int inwidth, int outwidth)
@@ -1211,7 +1526,7 @@ static void Image_Resample32LerpLine (const unsigned char *in, unsigned char *ou
 }
 
 #define LERPBYTE(i) r = resamplerow1[i];out[i] = (unsigned char) ((((resamplerow2[i] - r) * lerp) >> 16) + r)
-void Image_Resample32Lerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
+static void Image_Resample32Lerp(const 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;
        unsigned char *out;
@@ -1315,7 +1630,7 @@ void Image_Resample32Lerp(const void *indata, int inwidth, int inheight, void *o
        resamplerow2 = NULL;
 }
 
-void Image_Resample32Nolerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
+static void Image_Resample32Nolerp(const void *indata, int inwidth, int inheight, void *outdata, int outwidth, int outheight)
 {
        int i, j;
        unsigned frac, fracstep;
@@ -1457,9 +1772,7 @@ void Image_HeightmapToNormalmap_BGRA(const unsigned char *inpixels, unsigned cha
        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;
+       float ibumpscale, n[3];
        ibumpscale = (255.0f * 6.0f) / bumpscale;
        out = outpixels;
        for (y = 0, y1 = height-1;y < height;y1 = y, y++)
@@ -1493,3 +1806,300 @@ void Image_HeightmapToNormalmap_BGRA(const unsigned char *inpixels, unsigned cha
                }
        }
 }
+
+
+#include "lhfont.h"
+
+static unsigned char *Image_GenerateConChars(void)
+{
+       int i;
+       unsigned char *data;
+       double random;
+
+       image_width = 256;
+       image_height = 256;
+
+       data = LoadTGA_BGRA(concharimage, sizeof(concharimage), NULL);
+       // Gold numbers
+       for (i = 0; i < 8192; i++)
+       {
+               random = lhrandom(0.0, 1.0);
+               data[i * 4 + 3] = data[i * 4 + 0];
+               data[i * 4 + 2] = 83 + (unsigned char)(random * 64);
+               data[i * 4 + 1] = 71 + (unsigned char)(random * 32);
+               data[i * 4 + 0] = 23 + (unsigned char)(random * 16);
+       }
+       // White chars
+       for (i = 8192; i < 32768; i++)
+       {
+               random = lhrandom(0.0, 1.0);
+               data[i * 4 + 3] = data[i * 4 + 0];
+               data[i * 4 + 2] = 95 + (unsigned char)(random * 64);
+               data[i * 4 + 1] = 95 + (unsigned char)(random * 64);
+               data[i * 4 + 0] = 95 + (unsigned char)(random * 64);
+       }
+       // Gold numbers
+       for (i = 32768; i < 40960; i++)
+       {
+               random = lhrandom(0.0, 1.0);
+               data[i * 4 + 3] = data[i * 4 + 0];
+               data[i * 4 + 2] = 83 + (unsigned char)(random * 64);
+               data[i * 4 + 1] = 71 + (unsigned char)(random * 32);
+               data[i * 4 + 0] = 23 + (unsigned char)(random * 16);
+       }
+       // Red chars
+       for (i = 40960; i < 65536; i++)
+       {
+               random = lhrandom(0.0, 1.0);
+               data[i * 4 + 3] = data[i * 4 + 0];
+               data[i * 4 + 2] = 96 + (unsigned char)(random * 64);
+               data[i * 4 + 1] = 43 + (unsigned char)(random * 32);
+               data[i * 4 + 0] = 27 + (unsigned char)(random * 32);
+       }
+
+#if 0
+       Image_WriteTGABGRA("gfx/generated_conchars.tga", 256, 256, data);
+#endif
+
+       return data;
+}
+
+static unsigned char *Image_GenerateDitherPattern(void)
+{
+       int x, y;
+       unsigned char *data = (unsigned char *)Mem_Alloc(tempmempool, 8 * 8 * 4);
+       image_width = 8;
+       image_height = 8;
+       for (y = 0; y < 8; y++)
+       {
+               for (x = 0; x < 8; x++)
+               {
+                       data[(y * 8 + x) * 4 + 0] = ((x^y) & 4) ? 255 : 0;
+                       data[(y * 8 + x) * 4 + 1] = ((x^y) & 4) ? 255 : 0;
+                       data[(y * 8 + x) * 4 + 2] = ((x^y) & 4) ? 255 : 0;
+                       data[(y * 8 + x) * 4 + 3] = 255;
+               }
+       }
+       return data;
+}
+
+// also used in R_SkinFrame code
+unsigned char *Image_GenerateNoTexture(void)
+{
+       int x, y;
+       unsigned char *data = (unsigned char *)Mem_Alloc(tempmempool, 16 * 16 * 4);
+       image_width = 16;
+       image_height = 16;
+       // this makes a light grey/dark grey checkerboard texture
+       for (y = 0; y < 16; y++)
+       {
+               for (x = 0; x < 16; x++)
+               {
+                       data[(y * 16 + x) * 4 + 0] =
+                       data[(y * 16 + x) * 4 + 1] =
+                       data[(y * 16 + x) * 4 + 2] = (y < 8) ^ (x < 8) ? 128 : 64;
+                       data[(y * 16 + x) * 4 + 3] = 255;
+               }
+       }
+       return data;
+}
+
+static unsigned char *Image_GenerateWhite(void)
+{
+       unsigned char *data = (unsigned char *)Mem_Alloc(tempmempool, 1 * 1 * 4);
+       image_width = 1;
+       image_height = 1;
+       data[0] = data[1] = data[2] = data[3] = 255;
+       return data;
+}
+
+typedef struct embeddedpic_s
+{
+const char *name;
+int width;
+int height;
+const char *pixels;
+}
+embeddedpic_t;
+
+static const embeddedpic_t embeddedpics[] =
+{
+       {
+               "gfx/prydoncursor001", 16, 16,
+               "477777774......."
+               "77.....6........"
+               "7.....6........."
+               "7....6.........."
+               "7.....6........."
+               "7..6...6........"
+               "7.6.6...6......."
+               "76...6...6......"
+               "4.....6.6......."
+               ".......6........"
+               "................"
+               "................"
+               "................"
+               "................"
+               "................"
+               "................"
+       },
+       {
+               "ui/mousepointer", 16, 16,
+               "477777774......."
+               "77.....6........"
+               "7.....6........."
+               "7....6.........."
+               "7.....6........."
+               "7..6...6........"
+               "7.6.6...6......."
+               "76...6...6......"
+               "4.....6.6......."
+               ".......6........"
+               "................"
+               "................"
+               "................"
+               "................"
+               "................"
+               "................"
+       },
+       {
+               "gfx/crosshair1", 16, 16,
+               "................"
+               "................"
+               "................"
+               "...33......33..."
+               "...355....553..."
+               "....577..775...."
+               ".....77..77....."
+               "................"
+               "................"
+               ".....77..77....."
+               "....577..775...."
+               "...355....553..."
+               "...33......33..."
+               "................"
+               "................"
+               "................"
+       },
+       {
+               "gfx/crosshair2", 16, 16,
+               "................"
+               "................"
+               "................"
+               "...3........3..."
+               "....5......5...."
+               ".....7....7....."
+               "......7..7......"
+               "................"
+               "................"
+               "......7..7......"
+               ".....7....7....."
+               "....5......5...."
+               "...3........3..."
+               "................"
+               "................"
+               "................"
+       },
+       {
+               "gfx/crosshair3", 16, 16,
+               "................"
+               ".......77......."
+               ".......77......."
+               "................"
+               "................"
+               ".......44......."
+               ".......44......."
+               ".77..44..44..77."
+               ".77..44..44..77."
+               ".......44......."
+               ".......44......."
+               "................"
+               "................"
+               ".......77......."
+               ".......77......."
+               "................"
+       },
+       {
+               "gfx/crosshair4", 16, 16,
+               "................"
+               "................"
+               "................"
+               "................"
+               "................"
+               "................"
+               "................"
+               "................"
+               "........7777777."
+               "........752....."
+               "........72......"
+               "........7......."
+               "........7......."
+               "........7......."
+               "........7......."
+               "................"
+       },
+       {
+               "gfx/crosshair5", 8, 8,
+               "........"
+               "........"
+               "....7..."
+               "........"
+               "..7.7.7."
+               "........"
+               "....7..."
+               "........"
+       },
+       {
+               "gfx/crosshair6", 2, 2,
+               "77"
+               "77"
+       },
+       {
+               "gfx/crosshair7", 16, 16,
+               "................"
+               ".3............3."
+               "..5...2332...5.."
+               "...7.3....3.7..."
+               "....7......7...."
+               "...3.7....7.3..."
+               "..2...7..7...2.."
+               "..3..........3.."
+               "..3..........3.."
+               "..2...7..7...2.."
+               "...3.7....7.3..."
+               "....7......7...."
+               "...7.3....3.7..."
+               "..5...2332...5.."
+               ".3............3."
+               "................"
+       },
+       { NULL, 0, 0, NULL }
+};
+
+unsigned char *Image_GetEmbeddedPicBGRA(const char *name)
+{
+       const embeddedpic_t *p;
+       for (p = embeddedpics; p->name; p++)
+       {
+               if (!strcmp(name, p->name))
+               {
+                       int i;
+                       unsigned char *data = (unsigned char *)Mem_Alloc(tempmempool, p->width * p->height * 4);
+                       image_width = p->width;
+                       image_height = p->height;
+                       for (i = 0; i < p->width * p->height; i++)
+                       {
+                               const unsigned char *c = (const unsigned char *)palette_bgra_embeddedpic + 4 * p->pixels[i];
+                               Vector4Copy(c, data + 4 * i);
+                       }
+                       return data;
+               }
+       }
+       if (!strcmp(name, "white") || !strcmp(name, "#white") || !strcmp(name, "*white") || !strcmp(name, "$whiteimage"))
+               return Image_GenerateWhite();
+       if (!strcmp(name, "gfx/conchars"))
+               return Image_GenerateConChars();
+       if (!strcmp(name, "gfx/colorcontrol/ditherpattern"))
+               return Image_GenerateDitherPattern();
+       return NULL;
+}