]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - image.c
Configure all of the CL_MeshEntities* meshes the same, the material flags decide...
[xonotic/darkplaces.git] / image.c
diff --git a/image.c b/image.c
index ef0aac4e90a2f547e60b9d46e6baaa124c29b8cd..1f15a2fce253d4d330d7edb1e05d5935d800222d 100644 (file)
--- a/image.c
+++ b/image.c
@@ -8,7 +8,7 @@
 int            image_width;
 int            image_height;
 
-void Image_CopyAlphaFromBlueBGRA(unsigned char *outpixels, const unsigned char *inpixels, int w, int h)
+static void Image_CopyAlphaFromBlueBGRA(unsigned char *outpixels, const unsigned char *inpixels, int w, int h)
 {
        int i, n;
        n = w * h;
@@ -189,7 +189,7 @@ 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;
@@ -219,7 +219,7 @@ 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;
@@ -354,6 +354,19 @@ qboolean LoadPCX_QWSkin(const unsigned char *f, int filesize, unsigned char *pix
        return true;
 }
 
+/*
+============
+LoadPCX
+============
+*/
+qboolean LoadPCX_PaletteOnly(const unsigned char *f, int filesize, unsigned char *palette768b)
+{
+       if (filesize < 768)
+               return false;
+       memcpy(palette768b, f + filesize - 768, 768);
+       return true;
+}
+
 /*
 =========================================================
 
@@ -372,7 +385,7 @@ 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);
 }
@@ -382,7 +395,7 @@ 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;
@@ -416,13 +429,15 @@ 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;
 
@@ -537,8 +552,6 @@ 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;
@@ -609,6 +622,13 @@ 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:
@@ -657,6 +677,13 @@ 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
@@ -703,6 +730,13 @@ 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;
@@ -725,7 +759,7 @@ 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;
@@ -738,13 +772,13 @@ 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;
@@ -756,10 +790,50 @@ 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;
 }
 
+qboolean 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;
+}
+
 
 void Image_StripImageExtension (const char *in, char *out, size_t size_out)
 {
@@ -769,16 +843,51 @@ 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);
 }
 
+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;
 
@@ -854,12 +963,13 @@ imageformat_t imageformats_other[] =
 };
 
 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, qboolean complain, qboolean allowFixtrans, qboolean convertsRGB, int *miplevel)
 {
        fs_offset_t filesize;
        imageformat_t *firstformat, *format;
        unsigned char *f, *data = NULL, *data2 = NULL;
        char basename[MAX_QPATH], name[MAX_QPATH], name2[MAX_QPATH], *c;
+       char vabuf[1024];
        //if (developer_memorydebug.integer)
        //      Mem_CheckSentinelsGlobal();
        if (developer_texturelogging.integer)
@@ -896,24 +1006,38 @@ unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qbo
                f = FS_LoadFile(name, tempmempool, true, &filesize);
                if (f)
                {
-                       data = format->loadfunc(f, filesize);
+                       int mymiplevel = miplevel ? *miplevel : 0;
+                       image_width = 0;
+                       image_height = 0;
+                       data = format->loadfunc(f, (int)filesize, &mymiplevel);
                        Mem_Free(f);
-                       if(format->loadfunc == JPEG_LoadImage_BGRA) // jpeg can't do alpha, so let's simulate it by loading another jpeg
+                       if (data)
                        {
-                               dpsnprintf (name2, sizeof(name2), format->formatstring, va("%s_alpha", basename));
-                               f = FS_LoadFile(name2, tempmempool, true, &filesize);
-                               if(f)
+                               if(format->loadfunc == JPEG_LoadImage_BGRA) // jpeg can't do alpha, so let's simulate it by loading another jpeg
                                {
-                                       data2 = format->loadfunc(f, filesize);
-                                       Mem_Free(f);
-                                       Image_CopyAlphaFromBlueBGRA(data, data2, image_width, image_height);
-                                       Mem_Free(data2);
+                                       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 (data)
-                       {
                                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)
@@ -932,6 +1056,8 @@ unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qbo
                                                }
                                        }
                                }
+                               if (convertsRGB)
+                                       Image_MakeLinearColorsFromsRGB(data, data, image_width * image_height);
                                return data;
                        }
                        else
@@ -956,13 +1082,15 @@ unsigned char *loadimagepixelsbgra (const char *filename, qboolean complain, qbo
        return NULL;
 }
 
-rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, qboolean complain, int flags, qboolean allowFixtrans)
+extern cvar_t gl_picmip;
+rtexture_t *loadtextureimage (rtexturepool_t *pool, const char *filename, qboolean complain, int flags, qboolean allowFixtrans, qboolean 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;
 }
@@ -1108,7 +1236,7 @@ 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)))
                {
@@ -1122,9 +1250,12 @@ 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)
+qboolean Image_WriteTGABGR_preflipped (const char *filename, int width, int height, const unsigned char *data)
 {
        qboolean ret;
+       unsigned char buffer[18];
+       const void *buffers[2];
+       fs_offset_t sizes[2];
 
        memset (buffer, 0, 18);
        buffer[2] = 2;          // uncompressed type
@@ -1134,18 +1265,21 @@ 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)
+qboolean Image_WriteTGABGRA (const char *filename, int width, int height, const unsigned char *data)
 {
        int y;
        unsigned char *buffer, *out;
        const unsigned char *in, *end;
+       qboolean ret;
 
        buffer = (unsigned char *)Mem_Alloc(tempmempool, width*height*4 + 18);
 
@@ -1194,9 +1328,11 @@ 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)
@@ -1231,7 +1367,7 @@ 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;
@@ -1335,7 +1471,7 @@ 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;
@@ -1477,9 +1613,7 @@ 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++)