fix a potential crasher.
git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4672 fc73d0e0-1445-4013-8a0c-d673dee63da5
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1 changed files with 24 additions and 9 deletions
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@ -1228,7 +1228,8 @@ fill_input_buffer (j_decompress_ptr cinfo)
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memcpy(src->buffer, &src->infile[src->currentpos], nbytes);
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memcpy(src->buffer, &src->infile[src->currentpos], nbytes);
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src->currentpos+=nbytes;
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src->currentpos+=nbytes;
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if (nbytes <= 0) {
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if (nbytes <= 0)
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{
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if (src->start_of_file) /* Treat empty input file as fatal error */
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if (src->start_of_file) /* Treat empty input file as fatal error */
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ERREXIT(cinfo, JERR_INPUT_EMPTY);
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ERREXIT(cinfo, JERR_INPUT_EMPTY);
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WARNMS(cinfo, JWRN_JPEG_EOF);
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WARNMS(cinfo, JWRN_JPEG_EOF);
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@ -1323,6 +1324,8 @@ qbyte *ReadJPEGFile(qbyte *infile, int length, int *width, int *height)
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JSAMPARRAY buffer; /* Output row buffer */
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JSAMPARRAY buffer; /* Output row buffer */
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int size_stride; /* physical row width in output buffer */
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int size_stride; /* physical row width in output buffer */
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memset(&cinfo, 0, sizeof(cinfo));
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if (!LIBJPEG_LOADED())
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if (!LIBJPEG_LOADED())
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return NULL;
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return NULL;
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@ -2308,6 +2311,7 @@ texid_tf GL_ReadTextureDDS(const char *iname, unsigned char *buffer, int filesiz
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int pad;
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int pad;
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unsigned int w, h;
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unsigned int w, h;
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int divsize, blocksize;
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int divsize, blocksize;
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qboolean warned = false;
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ddsheader fmtheader;
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ddsheader fmtheader;
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if (*(int*)buffer != *(int*)"DDS " || qrenderer != QR_OPENGL)
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if (*(int*)buffer != *(int*)"DDS " || qrenderer != QR_OPENGL)
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@ -2346,7 +2350,10 @@ texid_tf GL_ReadTextureDDS(const char *iname, unsigned char *buffer, int filesiz
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blocksize = 16;
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blocksize = 16;
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}
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}
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else
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else
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{
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Con_Printf("Unsupported dds fourcc in %s\n", iname);
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return r_nulltex;
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return r_nulltex;
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}
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if (!qglCompressedTexImage2DARB)
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if (!qglCompressedTexImage2DARB)
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return r_nulltex;
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return r_nulltex;
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@ -2365,14 +2372,15 @@ texid_tf GL_ReadTextureDDS(const char *iname, unsigned char *buffer, int filesiz
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datasize = max(divsize, w)/divsize * max(divsize, h)/divsize * blocksize;
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datasize = max(divsize, w)/divsize * max(divsize, h)/divsize * blocksize;
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qglCompressedTexImage2DARB(GL_TEXTURE_2D, mipnum, intfmt, w, h, 0, datasize, buffer);
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qglCompressedTexImage2DARB(GL_TEXTURE_2D, mipnum, intfmt, w, h, 0, datasize, buffer);
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if (qglGetError())
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if (qglGetError())
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{
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if (!warned)
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Con_Printf("Incompatible dds file %s (mip %i)\n", iname, mipnum);
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Con_Printf("Incompatible dds file %s (mip %i)\n", iname, mipnum);
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warned = true;
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}
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buffer += datasize;
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buffer += datasize;
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w = (w+1)>>1;
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w = (w+1)>>1;
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h = (h+1)>>1;
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h = (h+1)>>1;
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}
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}
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if (qglGetError())
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Con_Printf("Incompatible dds file %s\n", iname);
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if (nummips>1)
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if (nummips>1)
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{
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{
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@ -2385,6 +2393,13 @@ texid_tf GL_ReadTextureDDS(const char *iname, unsigned char *buffer, int filesiz
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qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
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qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
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}
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}
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if (qglGetError())
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{
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if (!warned)
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Con_Printf("Incompatible dds file %s\n", iname);
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warned = true;
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}
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return texnum;
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return texnum;
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}
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}
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#endif
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#endif
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@ -2754,11 +2769,11 @@ qboolean R_LoadTextureFromMemory(texid_t *tex, int flags, const char *iname, cha
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unsigned char *alphadata;
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unsigned char *alphadata;
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char *alph;
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char *alph;
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COM_StripExtension(fname, aname, sizeof(aname));
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COM_StripExtension(fname, aname, sizeof(aname));
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Q_strncatz(aname, "_alpha", sizeof(aname));
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Q_strncatz(aname, "_alpha.", sizeof(aname));
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Q_strncatz(aname, COM_FileExtension(fname), sizeof(aname));
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Q_strncatz(aname, COM_FileExtension(fname), sizeof(aname));
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if ((alph = COM_LoadFile (aname, 5)))
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if ((alph = COM_LoadFile (aname, 5)))
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{
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{
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if ((alphadata = Read32BitImageFile(alph, filesize, &alpha_width, &alpha_height, &hasalpha, aname)))
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if ((alphadata = Read32BitImageFile(alph, com_filesize, &alpha_width, &alpha_height, &hasalpha, aname)))
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{
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{
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if (alpha_width == image_width && alpha_height == image_height)
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if (alpha_width == image_width && alpha_height == image_height)
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{
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{
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