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Diffstat (limited to 'src/renderergl2/tr_image.cpp')
| -rw-r--r-- | src/renderergl2/tr_image.cpp | 3235 |
1 files changed, 3235 insertions, 0 deletions
diff --git a/src/renderergl2/tr_image.cpp b/src/renderergl2/tr_image.cpp new file mode 100644 index 0000000..5e29ff7 --- /dev/null +++ b/src/renderergl2/tr_image.cpp @@ -0,0 +1,3235 @@ +/* +=========================================================================== +Copyright (C) 1999-2005 Id Software, Inc. +Copyright (C) 2000-2013 Darklegion Development +Copyright (C) 2015-2019 GrangerHub + +This file is part of Tremulous. + +Tremulous is free software; you can redistribute it +and/or modify it under the terms of the GNU General Public License as +published by the Free Software Foundation; either version 3 of the License, +or (at your option) any later version. + +Tremulous is distributed in the hope that it will be +useful, but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with Tremulous; if not, see <https://www.gnu.org/licenses/> + +=========================================================================== +*/ +// tr_image.c +#include "tr_local.h" + +#include "tr_dsa.h" + +static byte s_intensitytable[256]; +static unsigned char s_gammatable[256]; + +int gl_filter_min = GL_LINEAR_MIPMAP_NEAREST; +int gl_filter_max = GL_LINEAR; + +#define FILE_HASH_SIZE 1024 +static image_t* hashTable[FILE_HASH_SIZE]; + +/* +** R_GammaCorrect +*/ +void R_GammaCorrect( byte *buffer, int bufSize ) { + int i; + + for ( i = 0; i < bufSize; i++ ) { + buffer[i] = s_gammatable[buffer[i]]; + } +} + +struct textureMode_t { + const char *name; + int minimize, maximize; +}; + +textureMode_t modes[] = { + {"GL_NEAREST", GL_NEAREST, GL_NEAREST}, + {"GL_LINEAR", GL_LINEAR, GL_LINEAR}, + {"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST}, + {"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR}, + {"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST}, + {"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR} +}; + +/* +================ +return a hash value for the filename +================ +*/ +static long generateHashValue( const char *fname ) { + int i; + long hash; + char letter; + + hash = 0; + i = 0; + while (fname[i] != '\0') { + letter = tolower(fname[i]); + if (letter =='.') break; // don't include extension + if (letter =='\\') letter = '/'; // damn path names + hash+=(long)(letter)*(i+119); + i++; + } + hash &= (FILE_HASH_SIZE-1); + return hash; +} + +/* +=============== +GL_TextureMode +=============== +*/ +void GL_TextureMode( const char *string ) { + int i; + image_t *glt; + + for ( i=0 ; i< 6 ; i++ ) { + if ( !Q_stricmp( modes[i].name, string ) ) { + break; + } + } + + // hack to prevent trilinear from being set on voodoo, + // because their driver freaks... + if ( i == 5 && glConfig.hardwareType == GLHW_3DFX_2D3D ) { + ri.Printf( PRINT_ALL, "Refusing to set trilinear on a voodoo.\n" ); + i = 3; + } + + + if ( i == 6 ) { + ri.Printf (PRINT_ALL, "bad filter name\n"); + return; + } + + gl_filter_min = modes[i].minimize; + gl_filter_max = modes[i].maximize; + + // change all the existing mipmap texture objects + for ( i = 0 ; i < tr.numImages ; i++ ) { + glt = tr.images[ i ]; + if ( glt->flags & IMGFLAG_MIPMAP && !(glt->flags & IMGFLAG_CUBEMAP)) { + qglTextureParameterfEXT(glt->texnum, GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min); + qglTextureParameterfEXT(glt->texnum, GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max); + } + } +} + +/* +=============== +R_SumOfUsedImages +=============== +*/ +int R_SumOfUsedImages( void ) { + int total; + int i; + + total = 0; + for ( i = 0; i < tr.numImages; i++ ) { + if ( tr.images[i]->frameUsed == tr.frameCount ) { + total += tr.images[i]->uploadWidth * tr.images[i]->uploadHeight; + } + } + + return total; +} + +/* +=============== +R_ImageList_f +=============== +*/ +void R_ImageList_f( void ) { + int i; + int estTotalSize = 0; + + ri.Printf(PRINT_ALL, "\n -w-- -h-- -type-- -size- --name-------\n"); + + for ( i = 0 ; i < tr.numImages ; i++ ) + { + image_t *image = tr.images[i]; + const char *format = "???? "; + const char *sizeSuffix; + int estSize; + int displaySize; + + estSize = image->uploadHeight * image->uploadWidth; + + switch(image->internalFormat) + { + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: + format = "sDXT1 "; + // 64 bits per 16 pixels, so 4 bits per pixel + estSize /= 2; + break; + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: + format = "sDXT5 "; + // 128 bits per 16 pixels, so 1 byte per pixel + break; + case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB: + format = "sBPTC "; + // 128 bits per 16 pixels, so 1 byte per pixel + break; + case GL_COMPRESSED_RG_RGTC2: + format = "RGTC2 "; + // 128 bits per 16 pixels, so 1 byte per pixel + break; + case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: + format = "DXT1 "; + // 64 bits per 16 pixels, so 4 bits per pixel + estSize /= 2; + break; + case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: + format = "DXT1a "; + // 64 bits per 16 pixels, so 4 bits per pixel + estSize /= 2; + break; + case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: + format = "DXT5 "; + // 128 bits per 16 pixels, so 1 byte per pixel + break; + case GL_COMPRESSED_RGBA_BPTC_UNORM_ARB: + format = "BPTC "; + // 128 bits per 16 pixels, so 1 byte per pixel + break; + case GL_RGB4_S3TC: + format = "S3TC "; + // same as DXT1? + estSize /= 2; + break; + case GL_RGBA16F: + format = "RGBA16F"; + // 8 bytes per pixel + estSize *= 8; + break; + case GL_RGBA16: + format = "RGBA16 "; + // 8 bytes per pixel + estSize *= 8; + break; + case GL_RGBA4: + case GL_RGBA8: + case GL_RGBA: + format = "RGBA "; + // 4 bytes per pixel + estSize *= 4; + break; + case GL_LUMINANCE8: + case GL_LUMINANCE16: + case GL_LUMINANCE: + format = "L "; + // 1 byte per pixel? + break; + case GL_RGB5: + case GL_RGB8: + case GL_RGB: + format = "RGB "; + // 3 bytes per pixel? + estSize *= 3; + break; + case GL_LUMINANCE8_ALPHA8: + case GL_LUMINANCE16_ALPHA16: + case GL_LUMINANCE_ALPHA: + format = "LA "; + // 2 bytes per pixel? + estSize *= 2; + break; + case GL_SRGB_EXT: + case GL_SRGB8_EXT: + format = "sRGB "; + // 3 bytes per pixel? + estSize *= 3; + break; + case GL_SRGB_ALPHA_EXT: + case GL_SRGB8_ALPHA8_EXT: + format = "sRGBA "; + // 4 bytes per pixel? + estSize *= 4; + break; + case GL_SLUMINANCE_EXT: + case GL_SLUMINANCE8_EXT: + format = "sL "; + // 1 byte per pixel? + break; + case GL_SLUMINANCE_ALPHA_EXT: + case GL_SLUMINANCE8_ALPHA8_EXT: + format = "sLA "; + // 2 byte per pixel? + estSize *= 2; + break; + case GL_DEPTH_COMPONENT16: + format = "Depth16"; + // 2 bytes per pixel + estSize *= 2; + break; + case GL_DEPTH_COMPONENT24: + format = "Depth24"; + // 3 bytes per pixel + estSize *= 3; + break; + case GL_DEPTH_COMPONENT: + case GL_DEPTH_COMPONENT32: + format = "Depth32"; + // 4 bytes per pixel + estSize *= 4; + break; + } + + // mipmap adds about 50% + if (image->flags & IMGFLAG_MIPMAP) + estSize += estSize / 2; + + sizeSuffix = "b "; + displaySize = estSize; + + if (displaySize > 1024) + { + displaySize /= 1024; + sizeSuffix = "kb"; + } + + if (displaySize > 1024) + { + displaySize /= 1024; + sizeSuffix = "Mb"; + } + + if (displaySize > 1024) + { + displaySize /= 1024; + sizeSuffix = "Gb"; + } + + ri.Printf(PRINT_ALL, "%4i: %4ix%4i %s %4i%s %s\n", i, image->uploadWidth, image->uploadHeight, format, displaySize, sizeSuffix, image->imgName); + estTotalSize += estSize; + } + + ri.Printf (PRINT_ALL, " ---------\n"); + ri.Printf (PRINT_ALL, " approx %i bytes\n", estTotalSize); + ri.Printf (PRINT_ALL, " %i total images\n\n", tr.numImages ); +} + +//======================================================================= + +/* +================ +ResampleTexture + +Used to resample images in a more general than quartering fashion. + +This will only be filtered properly if the resampled size +is greater than half the original size. + +If a larger shrinking is needed, use the mipmap function +before or after. +================ +*/ +static void ResampleTexture( byte *in, int inwidth, int inheight, byte *out, + int outwidth, int outheight ) { + int i, j; + byte *inrow, *inrow2; + int frac, fracstep; + int p1[2048], p2[2048]; + byte *pix1, *pix2, *pix3, *pix4; + + if (outwidth>2048) + ri.Error(ERR_DROP, "ResampleTexture: max width"); + + fracstep = inwidth*0x10000/outwidth; + + frac = fracstep>>2; + for ( i=0 ; i<outwidth ; i++ ) { + p1[i] = 4*(frac>>16); + frac += fracstep; + } + frac = 3*(fracstep>>2); + for ( i=0 ; i<outwidth ; i++ ) { + p2[i] = 4*(frac>>16); + frac += fracstep; + } + + for (i=0 ; i<outheight ; i++) { + inrow = in + 4*inwidth*(int)((i+0.25)*inheight/outheight); + inrow2 = in + 4*inwidth*(int)((i+0.75)*inheight/outheight); + for (j=0 ; j<outwidth ; j++) { + pix1 = inrow + p1[j]; + pix2 = inrow + p2[j]; + pix3 = inrow2 + p1[j]; + pix4 = inrow2 + p2[j]; + *out++ = (pix1[0] + pix2[0] + pix3[0] + pix4[0])>>2; + *out++ = (pix1[1] + pix2[1] + pix3[1] + pix4[1])>>2; + *out++ = (pix1[2] + pix2[2] + pix3[2] + pix4[2])>>2; + *out++ = (pix1[3] + pix2[3] + pix3[3] + pix4[3])>>2; + } + } +} + +static void RGBAtoYCoCgA(const byte *in, byte *out, int width, int height) +{ + int x, y; + + for (y = 0; y < height; y++) + { + const byte *inbyte = in + y * width * 4; + byte *outbyte = out + y * width * 4; + + for (x = 0; x < width; x++) + { + byte r, g, b, a, rb2; + + r = *inbyte++; + g = *inbyte++; + b = *inbyte++; + a = *inbyte++; + rb2 = (r + b) >> 1; + + *outbyte++ = (g + rb2) >> 1; // Y = R/4 + G/2 + B/4 + *outbyte++ = (r - b + 256) >> 1; // Co = R/2 - B/2 + *outbyte++ = (g - rb2 + 256) >> 1; // Cg = -R/4 + G/2 - B/4 + *outbyte++ = a; + } + } +} + +static void YCoCgAtoRGBA(const byte *in, byte *out, int width, int height) +{ + int x, y; + + for (y = 0; y < height; y++) + { + const byte *inbyte = in + y * width * 4; + byte *outbyte = out + y * width * 4; + + for (x = 0; x < width; x++) + { + byte _Y, Co, Cg, a; + + _Y = *inbyte++; + Co = *inbyte++; + Cg = *inbyte++; + a = *inbyte++; + + *outbyte++ = CLAMP(_Y + Co - Cg, 0, 255); // R = Y + Co - Cg + *outbyte++ = CLAMP(_Y + Cg - 128, 0, 255); // G = Y + Cg + *outbyte++ = CLAMP(_Y - Co - Cg + 256, 0, 255); // B = Y - Co - Cg + *outbyte++ = a; + } + } +} + + +// uses a sobel filter to change a texture to a normal map +static void RGBAtoNormal(const byte *in, byte *out, int width, int height, bool clampToEdge) +{ + int x, y, max; + + // convert to heightmap, storing in alpha + // same as converting to Y in YCoCg + max = 1; + for (y = 0; y < height; y++) + { + const byte *inbyte = in + y * width * 4; + byte *outbyte = out + y * width * 4 + 3; + + for (x = 0; x < width; x++) + { + byte result = (inbyte[0] >> 2) + (inbyte[1] >> 1) + (inbyte[2] >> 2); + result = result * result / 255; // Make linear + *outbyte = result; + max = MAX(max, *outbyte); + outbyte += 4; + inbyte += 4; + } + } + + // level out heights + if (max < 255) + { + for (y = 0; y < height; y++) + { + byte *outbyte = out + y * width * 4 + 3; + + for (x = 0; x < width; x++) + { + *outbyte = *outbyte + (255 - max); + outbyte += 4; + } + } + } + + + // now run sobel filter over height values to generate X and Y + // then normalize + for (y = 0; y < height; y++) + { + byte *outbyte = out + y * width * 4; + + for (x = 0; x < width; x++) + { + // 0 1 2 + // 3 4 5 + // 6 7 8 + + byte s[9]; + int x2, y2, i; + vec3_t normal; + + i = 0; + for (y2 = -1; y2 <= 1; y2++) + { + int src_y = y + y2; + + if (clampToEdge) + { + src_y = CLAMP(src_y, 0, height - 1); + } + else + { + src_y = (src_y + height) % height; + } + + + for (x2 = -1; x2 <= 1; x2++) + { + int src_x = x + x2; + + if (clampToEdge) + { + src_x = CLAMP(src_x, 0, width - 1); + } + else + { + src_x = (src_x + width) % width; + } + + s[i++] = *(out + (src_y * width + src_x) * 4 + 3); + } + } + + normal[0] = s[0] - s[2] + + 2 * s[3] - 2 * s[5] + + s[6] - s[8]; + + normal[1] = s[0] + 2 * s[1] + s[2] + + - s[6] - 2 * s[7] - s[8]; + + normal[2] = s[4] * 4; + + if (!VectorNormalize2(normal, normal)) + { + VectorSet(normal, 0, 0, 1); + } + + *outbyte++ = FloatToOffsetByte(normal[0]); + *outbyte++ = FloatToOffsetByte(normal[1]); + *outbyte++ = FloatToOffsetByte(normal[2]); + outbyte++; + } + } +} + +#define COPYSAMPLE(a,b) *(unsigned int *)(a) = *(unsigned int *)(b) + +// based on Fast Curve Based Interpolation +// from Fast Artifacts-Free Image Interpolation (http://www.andreagiachetti.it/icbi/) +// assumes data has a 2 pixel thick border of clamped or wrapped data +// expects data to be a grid with even (0, 0), (2, 0), (0, 2), (2, 2) etc pixels filled +// only performs FCBI on specified component +static void DoFCBI(byte *in, byte *out, int width, int height, int component) +{ + int x, y; + byte *outbyte, *inbyte; + + // copy in to out + for (y = 2; y < height - 2; y += 2) + { + inbyte = in + (y * width + 2) * 4 + component; + outbyte = out + (y * width + 2) * 4 + component; + + for (x = 2; x < width - 2; x += 2) + { + *outbyte = *inbyte; + outbyte += 8; + inbyte += 8; + } + } + + for (y = 3; y < height - 3; y += 2) + { + // diagonals + // + // NWp - northwest interpolated pixel + // NEp - northeast interpolated pixel + // NWd - northwest first derivative + // NEd - northeast first derivative + // NWdd - northwest second derivative + // NEdd - northeast second derivative + // + // Uses these samples: + // + // 0 + // - - a - b - - + // - - - - - - - + // c - d - e - f + // 0 - - - - - - - + // g - h - i - j + // - - - - - - - + // - - k - l - - + // + // x+2 uses these samples: + // + // 0 + // - - - - a - b - - + // - - - - - - - - - + // - - c - d - e - f + // 0 - - - - - - - - - + // - - g - h - i - j + // - - - - - - - - - + // - - - - k - l - - + // + // so we can reuse 8 of them on next iteration + // + // a=b, c=d, d=e, e=f, g=h, h=i, i=j, k=l + // + // only b, f, j, and l need to be sampled on next iteration + + byte sa, sb, sc, sd, se, sf, sg, sh, si, sj, sk, sl; + byte *line1, *line2, *line3, *line4; + + x = 3; + + // optimization one + // SAMPLE2(sa, x-1, y-3); + //SAMPLE2(sc, x-3, y-1); SAMPLE2(sd, x-1, y-1); SAMPLE2(se, x+1, y-1); + //SAMPLE2(sg, x-3, y+1); SAMPLE2(sh, x-1, y+1); SAMPLE2(si, x+1, y+1); + // SAMPLE2(sk, x-1, y+3); + + // optimization two + line1 = in + ((y - 3) * width + (x - 1)) * 4 + component; + line2 = in + ((y - 1) * width + (x - 3)) * 4 + component; + line3 = in + ((y + 1) * width + (x - 3)) * 4 + component; + line4 = in + ((y + 3) * width + (x - 1)) * 4 + component; + + // COPYSAMPLE(sa, line1); line1 += 8; + //COPYSAMPLE(sc, line2); line2 += 8; COPYSAMPLE(sd, line2); line2 += 8; COPYSAMPLE(se, line2); line2 += 8; + //COPYSAMPLE(sg, line3); line3 += 8; COPYSAMPLE(sh, line3); line3 += 8; COPYSAMPLE(si, line3); line3 += 8; + // COPYSAMPLE(sk, line4); line4 += 8; + + sa = *line1; line1 += 8; + sc = *line2; line2 += 8; sd = *line2; line2 += 8; se = *line2; line2 += 8; + sg = *line3; line3 += 8; sh = *line3; line3 += 8; si = *line3; line3 += 8; + sk = *line4; line4 += 8; + + outbyte = out + (y * width + x) * 4 + component; + + for ( ; x < width - 3; x += 2) + { + int NWd, NEd, NWp, NEp; + + // original + // SAMPLE2(sa, x-1, y-3); SAMPLE2(sb, x+1, y-3); + //SAMPLE2(sc, x-3, y-1); SAMPLE2(sd, x-1, y-1); SAMPLE2(se, x+1, y-1); SAMPLE2(sf, x+3, y-1); + //SAMPLE2(sg, x-3, y+1); SAMPLE2(sh, x-1, y+1); SAMPLE2(si, x+1, y+1); SAMPLE2(sj, x+3, y+1); + // SAMPLE2(sk, x-1, y+3); SAMPLE2(sl, x+1, y+3); + + // optimization one + //SAMPLE2(sb, x+1, y-3); + //SAMPLE2(sf, x+3, y-1); + //SAMPLE2(sj, x+3, y+1); + //SAMPLE2(sl, x+1, y+3); + + // optimization two + //COPYSAMPLE(sb, line1); line1 += 8; + //COPYSAMPLE(sf, line2); line2 += 8; + //COPYSAMPLE(sj, line3); line3 += 8; + //COPYSAMPLE(sl, line4); line4 += 8; + + sb = *line1; line1 += 8; + sf = *line2; line2 += 8; + sj = *line3; line3 += 8; + sl = *line4; line4 += 8; + + NWp = sd + si; + NEp = se + sh; + NWd = abs(sd - si); + NEd = abs(se - sh); + + if (NWd > 100 || NEd > 100 || abs(NWp-NEp) > 200) + { + if (NWd < NEd) + *outbyte = NWp >> 1; + else + *outbyte = NEp >> 1; + } + else + { + int NWdd, NEdd; + + //NEdd = abs(sg + sd + sb - 3 * (se + sh) + sk + si + sf); + //NWdd = abs(sa + se + sj - 3 * (sd + si) + sc + sh + sl); + NEdd = abs(sg + sb - 3 * NEp + sk + sf + NWp); + NWdd = abs(sa + sj - 3 * NWp + sc + sl + NEp); + + if (NWdd > NEdd) + *outbyte = NWp >> 1; + else + *outbyte = NEp >> 1; + } + + outbyte += 8; + + // COPYSAMPLE(sa, sb); + //COPYSAMPLE(sc, sd); COPYSAMPLE(sd, se); COPYSAMPLE(se, sf); + //COPYSAMPLE(sg, sh); COPYSAMPLE(sh, si); COPYSAMPLE(si, sj); + // COPYSAMPLE(sk, sl); + + sa = sb; + sc = sd; sd = se; se = sf; + sg = sh; sh = si; si = sj; + sk = sl; + } + } + + // hack: copy out to in again + for (y = 3; y < height - 3; y += 2) + { + inbyte = out + (y * width + 3) * 4 + component; + outbyte = in + (y * width + 3) * 4 + component; + + for (x = 3; x < width - 3; x += 2) + { + *outbyte = *inbyte; + outbyte += 8; + inbyte += 8; + } + } + + for (y = 2; y < height - 3; y++) + { + // horizontal & vertical + // + // hp - horizontally interpolated pixel + // vp - vertically interpolated pixel + // hd - horizontal first derivative + // vd - vertical first derivative + // hdd - horizontal second derivative + // vdd - vertical second derivative + // Uses these samples: + // + // 0 + // - a - b - + // c - d - e + // 0 - f - g - + // h - i - j + // - k - l - + // + // x+2 uses these samples: + // + // 0 + // - - - a - b - + // - - c - d - e + // 0 - - - f - g - + // - - h - i - j + // - - - k - l - + // + // so we can reuse 7 of them on next iteration + // + // a=b, c=d, d=e, f=g, h=i, i=j, k=l + // + // only b, e, g, j, and l need to be sampled on next iteration + + byte sa, sb, sc, sd, se, sf, sg, sh, si, sj, sk, sl; + byte *line1, *line2, *line3, *line4, *line5; + + //x = (y + 1) % 2; + x = (y + 1) % 2 + 2; + + // optimization one + // SAMPLE2(sa, x-1, y-2); + //SAMPLE2(sc, x-2, y-1); SAMPLE2(sd, x, y-1); + // SAMPLE2(sf, x-1, y ); + //SAMPLE2(sh, x-2, y+1); SAMPLE2(si, x, y+1); + // SAMPLE2(sk, x-1, y+2); + + line1 = in + ((y - 2) * width + (x - 1)) * 4 + component; + line2 = in + ((y - 1) * width + (x - 2)) * 4 + component; + line3 = in + ((y ) * width + (x - 1)) * 4 + component; + line4 = in + ((y + 1) * width + (x - 2)) * 4 + component; + line5 = in + ((y + 2) * width + (x - 1)) * 4 + component; + + // COPYSAMPLE(sa, line1); line1 += 8; + //COPYSAMPLE(sc, line2); line2 += 8; COPYSAMPLE(sd, line2); line2 += 8; + // COPYSAMPLE(sf, line3); line3 += 8; + //COPYSAMPLE(sh, line4); line4 += 8; COPYSAMPLE(si, line4); line4 += 8; + // COPYSAMPLE(sk, line5); line5 += 8; + + sa = *line1; line1 += 8; + sc = *line2; line2 += 8; sd = *line2; line2 += 8; + sf = *line3; line3 += 8; + sh = *line4; line4 += 8; si = *line4; line4 += 8; + sk = *line5; line5 += 8; + + outbyte = out + (y * width + x) * 4 + component; + + for ( ; x < width - 3; x+=2) + { + int hd, vd, hp, vp; + + // SAMPLE2(sa, x-1, y-2); SAMPLE2(sb, x+1, y-2); + //SAMPLE2(sc, x-2, y-1); SAMPLE2(sd, x, y-1); SAMPLE2(se, x+2, y-1); + // SAMPLE2(sf, x-1, y ); SAMPLE2(sg, x+1, y ); + //SAMPLE2(sh, x-2, y+1); SAMPLE2(si, x, y+1); SAMPLE2(sj, x+2, y+1); + // SAMPLE2(sk, x-1, y+2); SAMPLE2(sl, x+1, y+2); + + // optimization one + //SAMPLE2(sb, x+1, y-2); + //SAMPLE2(se, x+2, y-1); + //SAMPLE2(sg, x+1, y ); + //SAMPLE2(sj, x+2, y+1); + //SAMPLE2(sl, x+1, y+2); + + //COPYSAMPLE(sb, line1); line1 += 8; + //COPYSAMPLE(se, line2); line2 += 8; + //COPYSAMPLE(sg, line3); line3 += 8; + //COPYSAMPLE(sj, line4); line4 += 8; + //COPYSAMPLE(sl, line5); line5 += 8; + + sb = *line1; line1 += 8; + se = *line2; line2 += 8; + sg = *line3; line3 += 8; + sj = *line4; line4 += 8; + sl = *line5; line5 += 8; + + hp = sf + sg; + vp = sd + si; + hd = abs(sf - sg); + vd = abs(sd - si); + + if (hd > 100 || vd > 100 || abs(hp-vp) > 200) + { + if (hd < vd) + *outbyte = hp >> 1; + else + *outbyte = vp >> 1; + } + else + { + int hdd, vdd; + + //hdd = abs(sc[i] + sd[i] + se[i] - 3 * (sf[i] + sg[i]) + sh[i] + si[i] + sj[i]); + //vdd = abs(sa[i] + sf[i] + sk[i] - 3 * (sd[i] + si[i]) + sb[i] + sg[i] + sl[i]); + + hdd = abs(sc + se - 3 * hp + sh + sj + vp); + vdd = abs(sa + sk - 3 * vp + sb + sl + hp); + + if (hdd > vdd) + *outbyte = hp >> 1; + else + *outbyte = vp >> 1; + } + + outbyte += 8; + + // COPYSAMPLE(sa, sb); + //COPYSAMPLE(sc, sd); COPYSAMPLE(sd, se); + // COPYSAMPLE(sf, sg); + //COPYSAMPLE(sh, si); COPYSAMPLE(si, sj); + // COPYSAMPLE(sk, sl); + sa = sb; + sc = sd; sd = se; + sf = sg; + sh = si; si = sj; + sk = sl; + } + } +} + +// Similar to FCBI, but throws out the second order derivatives for speed +static void DoFCBIQuick(byte *in, byte *out, int width, int height, int component) +{ + int x, y; + byte *outbyte, *inbyte; + + // copy in to out + for (y = 2; y < height - 2; y += 2) + { + inbyte = in + (y * width + 2) * 4 + component; + outbyte = out + (y * width + 2) * 4 + component; + + for (x = 2; x < width - 2; x += 2) + { + *outbyte = *inbyte; + outbyte += 8; + inbyte += 8; + } + } + + for (y = 3; y < height - 4; y += 2) + { + byte sd, se, sh, si; + byte *line2, *line3; + + x = 3; + + line2 = in + ((y - 1) * width + (x - 1)) * 4 + component; + line3 = in + ((y + 1) * width + (x - 1)) * 4 + component; + + sd = *line2; line2 += 8; + sh = *line3; line3 += 8; + + outbyte = out + (y * width + x) * 4 + component; + + for ( ; x < width - 4; x += 2) + { + int NWd, NEd, NWp, NEp; + + se = *line2; line2 += 8; + si = *line3; line3 += 8; + + NWp = sd + si; + NEp = se + sh; + NWd = abs(sd - si); + NEd = abs(se - sh); + + if (NWd < NEd) + *outbyte = NWp >> 1; + else + *outbyte = NEp >> 1; + + outbyte += 8; + + sd = se; + sh = si; + } + } + + // hack: copy out to in again + for (y = 3; y < height - 3; y += 2) + { + inbyte = out + (y * width + 3) * 4 + component; + outbyte = in + (y * width + 3) * 4 + component; + + for (x = 3; x < width - 3; x += 2) + { + *outbyte = *inbyte; + outbyte += 8; + inbyte += 8; + } + } + + for (y = 2; y < height - 3; y++) + { + byte sd, sf, sg, si; + byte *line2, *line3, *line4; + + x = (y + 1) % 2 + 2; + + line2 = in + ((y - 1) * width + (x )) * 4 + component; + line3 = in + ((y ) * width + (x - 1)) * 4 + component; + line4 = in + ((y + 1) * width + (x )) * 4 + component; + + outbyte = out + (y * width + x) * 4 + component; + + sf = *line3; line3 += 8; + + for ( ; x < width - 3; x+=2) + { + int hd, vd, hp, vp; + + sd = *line2; line2 += 8; + sg = *line3; line3 += 8; + si = *line4; line4 += 8; + + hp = sf + sg; + vp = sd + si; + hd = abs(sf - sg); + vd = abs(sd - si); + + if (hd < vd) + *outbyte = hp >> 1; + else + *outbyte = vp >> 1; + + outbyte += 8; + + sf = sg; + } + } +} + +// Similar to DoFCBIQuick, but just takes the average instead of checking derivatives +// as well, this operates on all four components +static void DoLinear(byte *in, byte *out, int width, int height) +{ + int x, y, i; + byte *outbyte, *inbyte; + + // copy in to out + for (y = 2; y < height - 2; y += 2) + { + x = 2; + + inbyte = in + (y * width + x) * 4; + outbyte = out + (y * width + x) * 4; + + for ( ; x < width - 2; x += 2) + { + COPYSAMPLE(outbyte, inbyte); + outbyte += 8; + inbyte += 8; + } + } + + for (y = 1; y < height - 1; y += 2) + { + byte sd[4] = {0}, se[4] = {0}, sh[4] = {0}, si[4] = {0}; + byte *line2, *line3; + + x = 1; + + line2 = in + ((y - 1) * width + (x - 1)) * 4; + line3 = in + ((y + 1) * width + (x - 1)) * 4; + + COPYSAMPLE(sd, line2); line2 += 8; + COPYSAMPLE(sh, line3); line3 += 8; + + outbyte = out + (y * width + x) * 4; + + for ( ; x < width - 1; x += 2) + { + COPYSAMPLE(se, line2); line2 += 8; + COPYSAMPLE(si, line3); line3 += 8; + + for (i = 0; i < 4; i++) + { + *outbyte++ = (sd[i] + si[i] + se[i] + sh[i]) >> 2; + } + + outbyte += 4; + + COPYSAMPLE(sd, se); + COPYSAMPLE(sh, si); + } + } + + // hack: copy out to in again + for (y = 1; y < height - 1; y += 2) + { + x = 1; + + inbyte = out + (y * width + x) * 4; + outbyte = in + (y * width + x) * 4; + + for ( ; x < width - 1; x += 2) + { + COPYSAMPLE(outbyte, inbyte); + outbyte += 8; + inbyte += 8; + } + } + + for (y = 1; y < height - 1; y++) + { + byte sd[4], sf[4], sg[4], si[4]; + byte *line2, *line3, *line4; + + x = y % 2 + 1; + + line2 = in + ((y - 1) * width + (x )) * 4; + line3 = in + ((y ) * width + (x - 1)) * 4; + line4 = in + ((y + 1) * width + (x )) * 4; + + COPYSAMPLE(sf, line3); line3 += 8; + + outbyte = out + (y * width + x) * 4; + + for ( ; x < width - 1; x += 2) + { + COPYSAMPLE(sd, line2); line2 += 8; + COPYSAMPLE(sg, line3); line3 += 8; + COPYSAMPLE(si, line4); line4 += 8; + + for (i = 0; i < 4; i++) + { + *outbyte++ = (sf[i] + sg[i] + sd[i] + si[i]) >> 2; + } + + outbyte += 4; + + COPYSAMPLE(sf, sg); + } + } +} + + +static void ExpandHalfTextureToGrid( byte *data, int width, int height) +{ + int x, y; + + for (y = height / 2; y > 0; y--) + { + byte *outbyte = data + ((y * 2 - 1) * (width) - 2) * 4; + byte *inbyte = data + (y * (width / 2) - 1) * 4; + + for (x = width / 2; x > 0; x--) + { + COPYSAMPLE(outbyte, inbyte); + + outbyte -= 8; + inbyte -= 4; + } + } +} + +static void FillInNormalizedZ(const byte *in, byte *out, int width, int height) +{ + int x, y; + + for (y = 0; y < height; y++) + { + const byte *inbyte = in + y * width * 4; + byte *outbyte = out + y * width * 4; + + for (x = 0; x < width; x++) + { + byte nx, ny, nz, h; + float fnx, fny, fll, fnz; + + nx = *inbyte++; + ny = *inbyte++; + inbyte++; + h = *inbyte++; + + fnx = OffsetByteToFloat(nx); + fny = OffsetByteToFloat(ny); + fll = 1.0f - fnx * fnx - fny * fny; + if (fll >= 0.0f) + fnz = (float)sqrt(fll); + else + fnz = 0.0f; + + nz = FloatToOffsetByte(fnz); + + *outbyte++ = nx; + *outbyte++ = ny; + *outbyte++ = nz; + *outbyte++ = h; + } + } +} + + +// size must be even +#define WORKBLOCK_SIZE 128 +#define WORKBLOCK_BORDER 4 +#define WORKBLOCK_REALSIZE (WORKBLOCK_SIZE + WORKBLOCK_BORDER * 2) + +// assumes that data has already been expanded into a 2x2 grid +static void FCBIByBlock(byte *data, int width, int height, bool clampToEdge, bool normalized) +{ + byte workdata[WORKBLOCK_REALSIZE * WORKBLOCK_REALSIZE * 4]; + byte outdata[WORKBLOCK_REALSIZE * WORKBLOCK_REALSIZE * 4]; + byte *inbyte, *outbyte; + int x, y; + int srcx, srcy; + + ExpandHalfTextureToGrid(data, width, height); + + for (y = 0; y < height; y += WORKBLOCK_SIZE) + { + for (x = 0; x < width; x += WORKBLOCK_SIZE) + { + int x2, y2; + int workwidth, workheight, fullworkwidth, fullworkheight; + + workwidth = MIN(WORKBLOCK_SIZE, width - x); + workheight = MIN(WORKBLOCK_SIZE, height - y); + + fullworkwidth = workwidth + WORKBLOCK_BORDER * 2; + fullworkheight = workheight + WORKBLOCK_BORDER * 2; + + //memset(workdata, 0, WORKBLOCK_REALSIZE * WORKBLOCK_REALSIZE * 4); + + // fill in work block + for (y2 = 0; y2 < fullworkheight; y2 += 2) + { + srcy = y + y2 - WORKBLOCK_BORDER; + + if (clampToEdge) + { + srcy = CLAMP(srcy, 0, height - 2); + } + else + { + srcy = (srcy + height) % height; + } + + outbyte = workdata + y2 * fullworkwidth * 4; + inbyte = data + srcy * width * 4; + + for (x2 = 0; x2 < fullworkwidth; x2 += 2) + { + srcx = x + x2 - WORKBLOCK_BORDER; + + if (clampToEdge) + { + srcx = CLAMP(srcx, 0, width - 2); + } + else + { + srcx = (srcx + width) % width; + } + + COPYSAMPLE(outbyte, inbyte + srcx * 4); + outbyte += 8; + } + } + + // submit work block + DoLinear(workdata, outdata, fullworkwidth, fullworkheight); + + if (!normalized) + { + switch (r_imageUpsampleType->integer) + { + case 0: + break; + case 1: + DoFCBIQuick(workdata, outdata, fullworkwidth, fullworkheight, 0); + break; + case 2: + default: + DoFCBI(workdata, outdata, fullworkwidth, fullworkheight, 0); + break; + } + } + else + { + switch (r_imageUpsampleType->integer) + { + case 0: + break; + case 1: + DoFCBIQuick(workdata, outdata, fullworkwidth, fullworkheight, 0); + DoFCBIQuick(workdata, outdata, fullworkwidth, fullworkheight, 1); + break; + case 2: + default: + DoFCBI(workdata, outdata, fullworkwidth, fullworkheight, 0); + DoFCBI(workdata, outdata, fullworkwidth, fullworkheight, 1); + break; + } + } + + // copy back work block + for (y2 = 0; y2 < workheight; y2++) + { + inbyte = outdata + ((y2 + WORKBLOCK_BORDER) * fullworkwidth + WORKBLOCK_BORDER) * 4; + outbyte = data + ((y + y2) * width + x) * 4; + for (x2 = 0; x2 < workwidth; x2++) + { + COPYSAMPLE(outbyte, inbyte); + outbyte += 4; + inbyte += 4; + } + } + } + } +} +#undef COPYSAMPLE + +/* +================ +R_LightScaleTexture + +Scale up the pixel values in a texture to increase the +lighting range +================ +*/ +void R_LightScaleTexture (byte *in, int inwidth, int inheight, bool only_gamma ) +{ + if ( only_gamma ) + { + if ( !glConfig.deviceSupportsGamma ) + { + int i, c; + byte *p; + + p = in; + + c = inwidth*inheight; + for (i=0 ; i<c ; i++, p+=4) + { + p[0] = s_gammatable[p[0]]; + p[1] = s_gammatable[p[1]]; + p[2] = s_gammatable[p[2]]; + } + } + } + else + { + int i, c; + byte *p; + + p = in; + + c = inwidth*inheight; + + if ( glConfig.deviceSupportsGamma ) + { + for (i=0 ; i<c ; i++, p+=4) + { + p[0] = s_intensitytable[p[0]]; + p[1] = s_intensitytable[p[1]]; + p[2] = s_intensitytable[p[2]]; + } + } + else + { + for (i=0 ; i<c ; i++, p+=4) + { + p[0] = s_gammatable[s_intensitytable[p[0]]]; + p[1] = s_gammatable[s_intensitytable[p[1]]]; + p[2] = s_gammatable[s_intensitytable[p[2]]]; + } + } + } +} + + +/* +================ +R_MipMapsRGB + +Operates in place, quartering the size of the texture +Colors are gamma correct +================ +*/ +static void R_MipMapsRGB( byte *in, int inWidth, int inHeight) +{ + int x, y, c, stride; + const byte *in2; + float total; + static float downmipSrgbLookup[256]; + static int downmipSrgbLookupSet = 0; + byte *out = in; + + if (!downmipSrgbLookupSet) { + for (x = 0; x < 256; x++) + downmipSrgbLookup[x] = powf(x / 255.0f, 2.2f) * 0.25f; + downmipSrgbLookupSet = 1; + } + + if (inWidth == 1 && inHeight == 1) + return; + + if (inWidth == 1 || inHeight == 1) { + for (x = (inWidth * inHeight) >> 1; x; x--) { + for (c = 3; c; c--, in++) { + total = (downmipSrgbLookup[*(in)] + downmipSrgbLookup[*(in + 4)]) * 2.0f; + + *out++ = (byte)(powf(total, 1.0f / 2.2f) * 255.0f); + } + *out++ = (*(in) + *(in + 4)) >> 1; in += 5; + } + + return; + } + + stride = inWidth * 4; + inWidth >>= 1; inHeight >>= 1; + + in2 = in + stride; + for (y = inHeight; y; y--, in += stride, in2 += stride) { + for (x = inWidth; x; x--) { + for (c = 3; c; c--, in++, in2++) { + total = downmipSrgbLookup[*(in)] + downmipSrgbLookup[*(in + 4)] + + downmipSrgbLookup[*(in2)] + downmipSrgbLookup[*(in2 + 4)]; + + *out++ = (byte)(powf(total, 1.0f / 2.2f) * 255.0f); + } + + *out++ = (*(in) + *(in + 4) + *(in2) + *(in2 + 4)) >> 2; in += 5, in2 += 5; + } + } +} + + +static void R_MipMapNormalHeight (const byte *in, byte *out, int width, int height, bool swizzle) +{ + int i, j; + int row; + int sx = swizzle ? 3 : 0; + int sa = swizzle ? 0 : 3; + + if ( width == 1 && height == 1 ) { + return; + } + + row = width * 4; + width >>= 1; + height >>= 1; + + for (i=0 ; i<height ; i++, in+=row) { + for (j=0 ; j<width ; j++, out+=4, in+=8) { + vec3_t v; + + v[0] = OffsetByteToFloat(in[sx ]); + v[1] = OffsetByteToFloat(in[ 1]); + v[2] = OffsetByteToFloat(in[ 2]); + + v[0] += OffsetByteToFloat(in[sx +4]); + v[1] += OffsetByteToFloat(in[ 5]); + v[2] += OffsetByteToFloat(in[ 6]); + + v[0] += OffsetByteToFloat(in[sx+row ]); + v[1] += OffsetByteToFloat(in[ row+1]); + v[2] += OffsetByteToFloat(in[ row+2]); + + v[0] += OffsetByteToFloat(in[sx+row+4]); + v[1] += OffsetByteToFloat(in[ row+5]); + v[2] += OffsetByteToFloat(in[ row+6]); + + VectorNormalizeFast(v); + + //v[0] *= 0.25f; + //v[1] *= 0.25f; + //v[2] = 1.0f - v[0] * v[0] - v[1] * v[1]; + //v[2] = sqrt(MAX(v[2], 0.0f)); + + out[sx] = FloatToOffsetByte(v[0]); + out[1 ] = FloatToOffsetByte(v[1]); + out[2 ] = FloatToOffsetByte(v[2]); + out[sa] = MAX(MAX(in[sa], in[sa+4]), MAX(in[sa+row], in[sa+row+4])); + } + } +} + + +/* +================== +R_BlendOverTexture + +Apply a color blend over a set of pixels +================== +*/ +static void R_BlendOverTexture( byte *data, int pixelCount, byte blend[4] ) { + int i; + int inverseAlpha; + int premult[3]; + + inverseAlpha = 255 - blend[3]; + premult[0] = blend[0] * blend[3]; + premult[1] = blend[1] * blend[3]; + premult[2] = blend[2] * blend[3]; + + for ( i = 0 ; i < pixelCount ; i++, data+=4 ) { + data[0] = ( data[0] * inverseAlpha + premult[0] ) >> 9; + data[1] = ( data[1] * inverseAlpha + premult[1] ) >> 9; + data[2] = ( data[2] * inverseAlpha + premult[2] ) >> 9; + } +} + +byte mipBlendColors[16][4] = { + {0,0,0,0}, + {255,0,0,128}, + {0,255,0,128}, + {0,0,255,128}, + {255,0,0,128}, + {0,255,0,128}, + {0,0,255,128}, + {255,0,0,128}, + {0,255,0,128}, + {0,0,255,128}, + {255,0,0,128}, + {0,255,0,128}, + {0,0,255,128}, + {255,0,0,128}, + {0,255,0,128}, + {0,0,255,128}, +}; + +static void RawImage_SwizzleRA( byte *data, int width, int height ) +{ + int i; + byte *ptr = data, swap; + + for (i=0; i<width*height; i++, ptr+=4) + { + // swap red and alpha + swap = ptr[0]; + ptr[0] = ptr[3]; + ptr[3] = swap; + } +} + + +/* +=============== +RawImage_ScaleToPower2 + +=============== +*/ +static bool RawImage_ScaleToPower2( byte **data, int *inout_width, int *inout_height, imgType_t type, int/*imgFlags_t*/ flags, byte **resampledBuffer) +{ + int width = *inout_width; + int height = *inout_height; + int scaled_width; + int scaled_height; + bool picmip = flags & IMGFLAG_PICMIP; + bool mipmap = flags & IMGFLAG_MIPMAP; + bool clampToEdge = flags & IMGFLAG_CLAMPTOEDGE; + bool scaled; + + // + // convert to exact power of 2 sizes + // + if (!mipmap) + { + scaled_width = width; + scaled_height = height; + } + else + { + scaled_width = NextPowerOfTwo(width); + scaled_height = NextPowerOfTwo(height); + } + + if ( r_roundImagesDown->integer && scaled_width > width ) + scaled_width >>= 1; + if ( r_roundImagesDown->integer && scaled_height > height ) + scaled_height >>= 1; + + if ( picmip && data && resampledBuffer && r_imageUpsample->integer && + scaled_width < r_imageUpsampleMaxSize->integer && scaled_height < r_imageUpsampleMaxSize->integer) + { + int finalwidth, finalheight; + //int startTime, endTime; + + //startTime = ri.Milliseconds(); + + finalwidth = scaled_width << r_imageUpsample->integer; + finalheight = scaled_height << r_imageUpsample->integer; + + while ( finalwidth > r_imageUpsampleMaxSize->integer + || finalheight > r_imageUpsampleMaxSize->integer ) { + finalwidth >>= 1; + finalheight >>= 1; + } + + while ( finalwidth > glConfig.maxTextureSize + || finalheight > glConfig.maxTextureSize ) { + finalwidth >>= 1; + finalheight >>= 1; + } + + *resampledBuffer = (byte*)ri.Hunk_AllocateTempMemory( finalwidth * finalheight * 4 ); + + if (scaled_width != width || scaled_height != height) + ResampleTexture (*data, width, height, *resampledBuffer, scaled_width, scaled_height); + else + Com_Memcpy(*resampledBuffer, *data, width * height * 4); + + if (type == IMGTYPE_COLORALPHA) + RGBAtoYCoCgA(*resampledBuffer, *resampledBuffer, scaled_width, scaled_height); + + while (scaled_width < finalwidth || scaled_height < finalheight) + { + scaled_width <<= 1; + scaled_height <<= 1; + + FCBIByBlock(*resampledBuffer, scaled_width, scaled_height, clampToEdge, (type == IMGTYPE_NORMAL || type == IMGTYPE_NORMALHEIGHT)); + } + + if (type == IMGTYPE_COLORALPHA) + YCoCgAtoRGBA(*resampledBuffer, *resampledBuffer, scaled_width, scaled_height); + else if (type == IMGTYPE_NORMAL || type == IMGTYPE_NORMALHEIGHT) + FillInNormalizedZ(*resampledBuffer, *resampledBuffer, scaled_width, scaled_height); + + //endTime = ri.Milliseconds(); + + //ri.Printf(PRINT_ALL, "upsampled %dx%d to %dx%d in %dms\n", width, height, scaled_width, scaled_height, endTime - startTime); + + *data = *resampledBuffer; + } + else if ( scaled_width != width || scaled_height != height ) + { + if (data && resampledBuffer) + { + *resampledBuffer = (byte*)ri.Hunk_AllocateTempMemory( scaled_width * scaled_height * 4 ); + ResampleTexture (*data, width, height, *resampledBuffer, scaled_width, scaled_height); + *data = *resampledBuffer; + } + } + + width = scaled_width; + height = scaled_height; + + // + // perform optional picmip operation + // + if ( picmip ) { + scaled_width >>= r_picmip->integer; + scaled_height >>= r_picmip->integer; + } + + // + // clamp to the current upper OpenGL limit + // scale both axis down equally so we don't have to + // deal with a half mip resampling + // + while ( scaled_width > glConfig.maxTextureSize + || scaled_height > glConfig.maxTextureSize ) { + scaled_width >>= 1; + scaled_height >>= 1; + } + + // + // clamp to minimum size + // + scaled_width = MAX(1, scaled_width); + scaled_height = MAX(1, scaled_height); + + scaled = (width != scaled_width) || (height != scaled_height); + + // + // rescale texture to new size using existing mipmap functions + // + if (data) + { + while (width > scaled_width || height > scaled_height) + { + if (type == IMGTYPE_NORMAL || type == IMGTYPE_NORMALHEIGHT) + R_MipMapNormalHeight(*data, *data, width, height, false); + else + R_MipMapsRGB(*data, width, height); + + width = MAX(1, width >> 1); + height = MAX(1, height >> 1); + } + } + + *inout_width = width; + *inout_height = height; + + return scaled; +} + + +static bool RawImage_HasAlpha(const byte *scan, int numPixels) +{ + int i; + + if (!scan) + return true; + + for ( i = 0; i < numPixels; i++ ) + { + if ( scan[i*4 + 3] != 255 ) + { + return true; + } + } + + return false; +} + +static GLenum RawImage_GetFormat(const byte *data, int numPixels, GLenum picFormat, bool lightMap, imgType_t type, int/*imgFlags_t*/ flags) +{ + int samples = 3; + GLenum internalFormat = GL_RGB; + bool forceNoCompression = (flags & IMGFLAG_NO_COMPRESSION); + bool normalmap = (type == IMGTYPE_NORMAL || type == IMGTYPE_NORMALHEIGHT); + + if (picFormat != GL_RGBA8) + return picFormat; + + if(normalmap) + { + if ((type == IMGTYPE_NORMALHEIGHT) && RawImage_HasAlpha(data, numPixels) && r_parallaxMapping->integer) + { + if (!forceNoCompression && glRefConfig.textureCompression & TCR_BPTC) + { + internalFormat = GL_COMPRESSED_RGBA_BPTC_UNORM_ARB; + } + else if (!forceNoCompression && glConfig.textureCompression == TC_S3TC_ARB) + { + internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; + } + else if ( r_texturebits->integer == 16 ) + { + internalFormat = GL_RGBA4; + } + else if ( r_texturebits->integer == 32 ) + { + internalFormat = GL_RGBA8; + } + else + { + internalFormat = GL_RGBA; + } + } + else + { + if (!forceNoCompression && glRefConfig.textureCompression & TCR_RGTC) + { + internalFormat = GL_COMPRESSED_RG_RGTC2; + } + else if (!forceNoCompression && glRefConfig.textureCompression & TCR_BPTC) + { + internalFormat = GL_COMPRESSED_RGBA_BPTC_UNORM_ARB; + } + else if (!forceNoCompression && glConfig.textureCompression == TC_S3TC_ARB) + { + internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; + } + else if (r_texturebits->integer == 16) + { + internalFormat = GL_RGB5; + } + else if (r_texturebits->integer == 32) + { + internalFormat = GL_RGB8; + } + else + { + internalFormat = GL_RGB; + } + } + } + else if(lightMap) + { + if(r_greyscale->integer) + internalFormat = GL_LUMINANCE; + else + internalFormat = GL_RGBA; + } + else + { + if (RawImage_HasAlpha(data, numPixels)) + { + samples = 4; + } + + // select proper internal format + if ( samples == 3 ) + { + if(r_greyscale->integer) + { + if(r_texturebits->integer == 16) + internalFormat = GL_LUMINANCE8; + else if(r_texturebits->integer == 32) + internalFormat = GL_LUMINANCE16; + else + internalFormat = GL_LUMINANCE; + } + else + { + if ( !forceNoCompression && (glRefConfig.textureCompression & TCR_BPTC) ) + { + internalFormat = GL_COMPRESSED_RGBA_BPTC_UNORM_ARB; + } + else if ( !forceNoCompression && glConfig.textureCompression == TC_S3TC_ARB ) + { + internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; + } + else if ( !forceNoCompression && glConfig.textureCompression == TC_S3TC ) + { + internalFormat = GL_RGB4_S3TC; + } + else if ( r_texturebits->integer == 16 ) + { + internalFormat = GL_RGB5; + } + else if ( r_texturebits->integer == 32 ) + { + internalFormat = GL_RGB8; + } + else + { + internalFormat = GL_RGB; + } + } + } + else if ( samples == 4 ) + { + if(r_greyscale->integer) + { + if(r_texturebits->integer == 16) + internalFormat = GL_LUMINANCE8_ALPHA8; + else if(r_texturebits->integer == 32) + internalFormat = GL_LUMINANCE16_ALPHA16; + else + internalFormat = GL_LUMINANCE_ALPHA; + } + else + { + if ( !forceNoCompression && (glRefConfig.textureCompression & TCR_BPTC) ) + { + internalFormat = GL_COMPRESSED_RGBA_BPTC_UNORM_ARB; + } + else if ( !forceNoCompression && glConfig.textureCompression == TC_S3TC_ARB ) + { + internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; + } + else if ( r_texturebits->integer == 16 ) + { + internalFormat = GL_RGBA4; + } + else if ( r_texturebits->integer == 32 ) + { + internalFormat = GL_RGBA8; + } + else + { + internalFormat = GL_RGBA; + } + } + } + } + + return internalFormat; +} + +static void CompressMonoBlock(byte outdata[8], const byte indata[16]) +{ + int hi, lo, diff, bias, outbyte, shift, i; + byte *p = outdata; + + hi = lo = indata[0]; + for (i = 1; i < 16; i++) + { + hi = MAX(indata[i], hi); + lo = MIN(indata[i], lo); + } + + *p++ = hi; + *p++ = lo; + + diff = hi - lo; + + if (diff == 0) + { + outbyte = (hi == 255) ? 255 : 0; + + for (i = 0; i < 6; i++) + *p++ = outbyte; + + return; + } + + bias = diff / 2 - lo * 7; + outbyte = shift = 0; + for (i = 0; i < 16; i++) + { + const byte fixIndex[8] = { 1, 7, 6, 5, 4, 3, 2, 0 }; + byte index = fixIndex[(indata[i] * 7 + bias) / diff]; + + outbyte |= index << shift; + shift += 3; + if (shift >= 8) + { + *p++ = outbyte & 0xff; + shift -= 8; + outbyte >>= 8; + } + } +} + +static void RawImage_UploadToRgtc2Texture(GLuint texture, int miplevel, int x, int y, int width, int height, byte *data) +{ + int wBlocks, hBlocks, iy, ix, size; + byte *compressedData, *p; + + wBlocks = (width + 3) / 4; + hBlocks = (height + 3) / 4; + size = wBlocks * hBlocks * 16; + + p = compressedData = (byte*)ri.Hunk_AllocateTempMemory(size); + for (iy = 0; iy < height; iy += 4) + { + int oh = MIN(4, height - iy); + + for (ix = 0; ix < width; ix += 4) + { + byte workingData[16]; + int component; + + int ow = MIN(4, width - ix); + + for (component = 0; component < 2; component++) + { + int ox, oy; + + for (oy = 0; oy < oh; oy++) + for (ox = 0; ox < ow; ox++) + workingData[oy * 4 + ox] = data[((iy + oy) * width + ix + ox) * 4 + component]; + + // dupe data to fill + for (oy = 0; oy < 4; oy++) + for (ox = (oy < oh) ? ow : 0; ox < 4; ox++) + workingData[oy * 4 + ox] = workingData[(oy % oh) * 4 + ox % ow]; + + CompressMonoBlock(p, workingData); + p += 8; + } + } + } + + // FIXME: Won't work for x/y that aren't multiples of 4. + qglCompressedTextureSubImage2DEXT(texture, GL_TEXTURE_2D, miplevel, x, y, width, height, GL_COMPRESSED_RG_RGTC2, size, compressedData); + + ri.Hunk_FreeTempMemory(compressedData); +} + +static int CalculateMipSize(int width, int height, GLenum picFormat) +{ + int numBlocks = ((width + 3) / 4) * ((height + 3) / 4); + int numPixels = width * height; + + switch (picFormat) + { + case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: + case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: + case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: + case GL_COMPRESSED_RED_RGTC1: + case GL_COMPRESSED_SIGNED_RED_RGTC1: + return numBlocks * 8; + + case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: + case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: + case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: + case GL_COMPRESSED_RG_RGTC2: + case GL_COMPRESSED_SIGNED_RG_RGTC2: + case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_ARB: + case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT_ARB: + case GL_COMPRESSED_RGBA_BPTC_UNORM_ARB: + case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM_ARB: + return numBlocks * 16; + + case GL_RGBA8: + case GL_SRGB8_ALPHA8_EXT: + return numPixels * 4; + + case GL_RGBA16: + return numPixels * 8; + + default: + ri.Printf(PRINT_ALL, "Unsupported texture format %08x\n", picFormat); + return 0; + } + + return 0; +} + + +static GLenum PixelDataFormatFromInternalFormat(GLenum internalFormat) +{ + switch (internalFormat) + { + case GL_DEPTH_COMPONENT: + case GL_DEPTH_COMPONENT16_ARB: + case GL_DEPTH_COMPONENT24_ARB: + case GL_DEPTH_COMPONENT32_ARB: + return GL_DEPTH_COMPONENT; + default: + return GL_RGBA; + break; + } +} + +static void RawImage_UploadTexture(GLuint texture, byte *data, int x, int y, + int width, int height, GLenum target, GLenum picFormat, + int numMips, GLenum internalFormat, imgType_t type, int/*imgFlags_t*/ flags, bool subtexture ) +{ + GLenum dataFormat, dataType; + bool rgtc = internalFormat == GL_COMPRESSED_RG_RGTC2; + bool rgba8 = picFormat == GL_RGBA8 || picFormat == GL_SRGB8_ALPHA8_EXT; + bool rgba = rgba8 || picFormat == GL_RGBA16; + bool mipmap = !!(flags & IMGFLAG_MIPMAP); + int size, miplevel; + bool lastMip = false; + + dataFormat = PixelDataFormatFromInternalFormat(internalFormat); + dataType = picFormat == GL_RGBA16 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_BYTE; + + miplevel = 0; + do + { + lastMip = (width == 1 && height == 1) || !mipmap; + size = CalculateMipSize(width, height, picFormat); + + if (!rgba) + { + qglCompressedTextureSubImage2DEXT(texture, target, miplevel, x, y, width, height, picFormat, size, data); + } + else + { + if (rgba8 && miplevel != 0 && r_colorMipLevels->integer) + R_BlendOverTexture((byte *)data, width * height, mipBlendColors[miplevel]); + + if (rgba8 && rgtc) + RawImage_UploadToRgtc2Texture(texture, miplevel, x, y, width, height, data); + else + qglTextureSubImage2DEXT(texture, target, miplevel, x, y, width, height, dataFormat, dataType, data); + } + + if (!lastMip && numMips < 2) + { + if (glRefConfig.framebufferObject) + { + qglGenerateTextureMipmapEXT(texture, target); + break; + } + else if (rgba8) + { + if (type == IMGTYPE_NORMAL || type == IMGTYPE_NORMALHEIGHT) + R_MipMapNormalHeight(data, data, width, height, glRefConfig.swizzleNormalmap); + else + R_MipMapsRGB(data, width, height); + } + } + + x >>= 1; + y >>= 1; + width = MAX(1, width >> 1); + height = MAX(1, height >> 1); + miplevel++; + + if (numMips > 1) + { + data += size; + numMips--; + } + } + while (!lastMip); +} + + +/* +=============== +Upload32 + +=============== +*/ +static void Upload32(byte *data, int x, int y, int width, int height, GLenum picFormat, int numMips, image_t *image, bool scaled) +{ + int i, c; + byte *scan; + + imgType_t type = image->type; + int/*imgFlags_t*/ flags = image->flags; + GLenum internalFormat = image->internalFormat; + bool rgba8 = picFormat == GL_RGBA8 || picFormat == GL_SRGB8_ALPHA8_EXT; + bool mipmap = !!(flags & IMGFLAG_MIPMAP) && (rgba8 || numMips > 1); + bool cubemap = !!(flags & IMGFLAG_CUBEMAP); + + // These operations cannot be performed on non-rgba8 images. + if (rgba8 && !cubemap) + { + c = width*height; + scan = data; + + if (type == IMGTYPE_COLORALPHA) + { + if( r_greyscale->integer ) + { + for ( i = 0; i < c; i++ ) + { + byte luma = LUMA(scan[i*4], scan[i*4 + 1], scan[i*4 + 2]); + scan[i*4] = luma; + scan[i*4 + 1] = luma; + scan[i*4 + 2] = luma; + } + } + else if( r_greyscale->value ) + { + for ( i = 0; i < c; i++ ) + { + float luma = LUMA(scan[i*4], scan[i*4 + 1], scan[i*4 + 2]); + scan[i*4] = LERP(scan[i*4], luma, r_greyscale->value); + scan[i*4 + 1] = LERP(scan[i*4 + 1], luma, r_greyscale->value); + scan[i*4 + 2] = LERP(scan[i*4 + 2], luma, r_greyscale->value); + } + } + + // This corresponds to what the OpenGL1 renderer does. + if (!(flags & IMGFLAG_NOLIGHTSCALE) && (scaled || mipmap)) + R_LightScaleTexture(data, width, height, !mipmap); + } + + if (glRefConfig.swizzleNormalmap && (type == IMGTYPE_NORMAL || type == IMGTYPE_NORMALHEIGHT)) + RawImage_SwizzleRA(data, width, height); + } + + if (cubemap) + { + for (i = 0; i < 6; i++) + { + int w2 = width, h2 = height; + RawImage_UploadTexture(image->texnum, data, x, y, width, height, GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, picFormat, numMips, internalFormat, type, flags, false); + for (c = numMips; c; c--) + { + data += CalculateMipSize(w2, h2, picFormat); + w2 = MAX(1, w2 >> 1); + h2 = MAX(1, h2 >> 1); + } + } + } + else + { + RawImage_UploadTexture(image->texnum, data, x, y, width, height, GL_TEXTURE_2D, picFormat, numMips, internalFormat, type, flags, false); + } + + GL_CheckErrors(); +} + + +/* +================ +R_CreateImage2 + +This is the only way any image_t are created +================ +*/ +image_t *R_CreateImage2( const char *name, byte *pic, int width, int height, GLenum picFormat, int numMips, imgType_t type, int/*imgFlags_t*/ flags, int internalFormat ) { + byte *resampledBuffer = NULL; + image_t *image; + bool isLightmap = false, scaled = false; + long hash; + int glWrapClampMode, mipWidth, mipHeight, miplevel; + bool rgba8 = picFormat == GL_RGBA8 || picFormat == GL_SRGB8_ALPHA8_EXT; + bool mipmap = !!(flags & IMGFLAG_MIPMAP); + bool cubemap = !!(flags & IMGFLAG_CUBEMAP); + bool picmip = !!(flags & IMGFLAG_PICMIP); + bool lastMip; + GLenum textureTarget = cubemap ? GL_TEXTURE_CUBE_MAP : GL_TEXTURE_2D; + GLenum dataFormat; + + if (strlen(name) >= MAX_QPATH ) { + ri.Error (ERR_DROP, "R_CreateImage: \"%s\" is too long", name); + } + if ( !strncmp( name, "*lightmap", 9 ) ) { + isLightmap = true; + } + + if ( tr.numImages == MAX_DRAWIMAGES ) { + ri.Error( ERR_DROP, "R_CreateImage: MAX_DRAWIMAGES hit"); + } + + image = tr.images[tr.numImages] = (image_t*)ri.Hunk_Alloc( sizeof( image_t ), h_low ); + qglGenTextures(1, &image->texnum); + tr.numImages++; + + image->type = type; + image->flags = flags; + + strcpy (image->imgName, name); + + image->width = width; + image->height = height; + if (flags & IMGFLAG_CLAMPTOEDGE) + glWrapClampMode = GL_CLAMP_TO_EDGE; + else + glWrapClampMode = GL_REPEAT; + + if (!internalFormat) + internalFormat = RawImage_GetFormat(pic, width * height, picFormat, isLightmap, image->type, image->flags); + + image->internalFormat = internalFormat; + + // Possibly scale image before uploading. + // if not rgba8 and uploading an image, skip picmips. + if (!cubemap) + { + if (rgba8) + scaled = RawImage_ScaleToPower2(&pic, &width, &height, type, flags, &resampledBuffer); + else if (pic && picmip) + { + for (miplevel = r_picmip->integer; miplevel > 0 && numMips > 1; miplevel--, numMips--) + { + int size = CalculateMipSize(width, height, picFormat); + width = MAX(1, width >> 1); + height = MAX(1, height >> 1); + pic += size; + } + } + } + + image->uploadWidth = width; + image->uploadHeight = height; + + // Allocate texture storage so we don't have to worry about it later. + dataFormat = PixelDataFormatFromInternalFormat(internalFormat); + mipWidth = width; + mipHeight = height; + miplevel = 0; + do + { + lastMip = !mipmap || (mipWidth == 1 && mipHeight == 1); + if (cubemap) + { + int i; + + for (i = 0; i < 6; i++) + qglTextureImage2DEXT(image->texnum, GL_TEXTURE_CUBE_MAP_POSITIVE_X + i, miplevel, internalFormat, mipWidth, mipHeight, 0, dataFormat, GL_UNSIGNED_BYTE, NULL); + } + else + { + qglTextureImage2DEXT(image->texnum, GL_TEXTURE_2D, miplevel, internalFormat, mipWidth, mipHeight, 0, dataFormat, GL_UNSIGNED_BYTE, NULL); + } + + mipWidth = MAX(1, mipWidth >> 1); + mipHeight = MAX(1, mipHeight >> 1); + miplevel++; + } + while (!lastMip); + + // Upload data. + if (pic) + Upload32(pic, 0, 0, width, height, picFormat, numMips, image, scaled); + + if (resampledBuffer != NULL) + ri.Hunk_FreeTempMemory(resampledBuffer); + + // Set all necessary texture parameters. + qglTextureParameterfEXT(image->texnum, textureTarget, GL_TEXTURE_WRAP_S, glWrapClampMode); + qglTextureParameterfEXT(image->texnum, textureTarget, GL_TEXTURE_WRAP_T, glWrapClampMode); + + if (cubemap) + qglTextureParameteriEXT(image->texnum, textureTarget, GL_TEXTURE_WRAP_R, glWrapClampMode); + + if (glConfig.textureFilterAnisotropic && !cubemap) + qglTextureParameteriEXT(image->texnum, textureTarget, GL_TEXTURE_MAX_ANISOTROPY_EXT, + mipmap ? (GLint)Com_Clamp(1, glConfig.maxAnisotropy, r_ext_max_anisotropy->integer) : 1); + + switch(internalFormat) + { + case GL_DEPTH_COMPONENT: + case GL_DEPTH_COMPONENT16_ARB: + case GL_DEPTH_COMPONENT24_ARB: + case GL_DEPTH_COMPONENT32_ARB: + // Fix for sampling depth buffer on old nVidia cards. + // from http://www.idevgames.com/forums/thread-4141-post-34844.html#pid34844 + qglTextureParameterfEXT(image->texnum, textureTarget, GL_DEPTH_TEXTURE_MODE, GL_LUMINANCE); + qglTextureParameterfEXT(image->texnum, textureTarget, GL_TEXTURE_MIN_FILTER, GL_NEAREST); + qglTextureParameterfEXT(image->texnum, textureTarget, GL_TEXTURE_MAG_FILTER, GL_NEAREST); + break; + default: + qglTextureParameterfEXT(image->texnum, textureTarget, GL_TEXTURE_MIN_FILTER, mipmap ? gl_filter_min : GL_LINEAR); + qglTextureParameterfEXT(image->texnum, textureTarget, GL_TEXTURE_MAG_FILTER, mipmap ? gl_filter_max : GL_LINEAR); + break; + } + + GL_CheckErrors(); + + hash = generateHashValue(name); + image->next = hashTable[hash]; + hashTable[hash] = image; + + return image; +} + + +/* +================ +R_CreateImage + +Wrapper for R_CreateImage2(), for the old parameters. +================ +*/ +image_t *R_CreateImage(const char *name, byte *pic, int width, int height, + imgType_t type, int/*imgFlags_t*/ flags, int internalFormat) +{ + return R_CreateImage2(name, pic, width, height, GL_RGBA8, 0, type, flags, internalFormat); +} + + +void R_UpdateSubImage( image_t *image, byte *pic, int x, int y, int width, int height, GLenum picFormat ) +{ + Upload32(pic, x, y, width, height, picFormat, 0, image, false); +} + +//=================================================================== + +// Prototype for dds loader function which isn't common to both renderers +void R_LoadDDS(const char *filename, byte **pic, int *width, int *height, GLenum *picFormat, int *numMips); + +typedef struct +{ + const char *ext; + void (*ImageLoader)( const char *, unsigned char **, int *, int * ); +} imageExtToLoaderMap_t; + +// Note that the ordering indicates the order of preference used +// when there are multiple images of different formats available +static imageExtToLoaderMap_t imageLoaders[ ] = +{ + { "png", R_LoadPNG }, + { "tga", R_LoadTGA }, + { "jpg", R_LoadJPG }, + { "jpeg", R_LoadJPG }, + { "pcx", R_LoadPCX }, + { "bmp", R_LoadBMP } +}; + +static int numImageLoaders = ARRAY_LEN( imageLoaders ); + +/* +================= +R_LoadImage + +Loads any of the supported image types into a cannonical +32 bit format. +================= +*/ +void R_LoadImage( const char *name, byte **pic, int *width, int *height, GLenum *picFormat, int *numMips ) +{ + bool orgNameFailed = false; + int orgLoader = -1; + int i; + char localName[ MAX_QPATH ]; + const char *ext; + const char *altName; + + *pic = NULL; + *width = 0; + *height = 0; + *picFormat = GL_RGBA8; + *numMips = 0; + + Q_strncpyz( localName, name, MAX_QPATH ); + + ext = COM_GetExtension( localName ); + + // If compressed textures are enabled, try loading a DDS first, it'll load fastest + if (r_ext_compressed_textures->integer) + { + char ddsName[MAX_QPATH]; + + COM_StripExtension(name, ddsName, MAX_QPATH); + Q_strcat(ddsName, MAX_QPATH, ".dds"); + + R_LoadDDS(ddsName, pic, width, height, picFormat, numMips); + + // If loaded, we're done. + if (*pic) + return; + } + + if( *ext ) + { + // Look for the correct loader and use it + for( i = 0; i < numImageLoaders; i++ ) + { + if( !Q_stricmp( ext, imageLoaders[ i ].ext ) ) + { + // Load + imageLoaders[ i ].ImageLoader( localName, pic, width, height ); + break; + } + } + + // A loader was found + if( i < numImageLoaders ) + { + if( *pic == NULL ) + { + // Loader failed, most likely because the file isn't there; + // try again without the extension + orgNameFailed = true; + orgLoader = i; + COM_StripExtension( name, localName, MAX_QPATH ); + } + else + { + // Something loaded + return; + } + } + } + + // Try and find a suitable match using all + // the image formats supported + for( i = 0; i < numImageLoaders; i++ ) + { + if (i == orgLoader) + continue; + + altName = va( "%s.%s", localName, imageLoaders[ i ].ext ); + + // Load + imageLoaders[ i ].ImageLoader( altName, pic, width, height ); + + if( *pic ) + { + if( orgNameFailed ) + { + ri.Printf( PRINT_DEVELOPER, "WARNING: %s not present, using %s instead\n", + name, altName ); + } + + break; + } + } +} + + +/* +=============== +R_FindImageFile + +Finds or loads the given image. +Returns NULL if it fails, not a default image. +============== +*/ +image_t *R_FindImageFile( const char *name, imgType_t type, int/*imgFlags_t*/ flags ) +{ + image_t *image; + int width, height; + byte *pic; + GLenum picFormat; + int picNumMips; + long hash; + int/*imgFlags_t*/ checkFlagsTrue, checkFlagsFalse; + + if (!name) { + return NULL; + } + + hash = generateHashValue(name); + + // + // see if the image is already loaded + // + for (image=hashTable[hash]; image; image=image->next) { + if ( !strcmp( name, image->imgName ) ) { + // the white image can be used with any set of parms, but other mismatches are errors + if ( strcmp( name, "*white" ) ) { + if ( image->flags != flags ) { + ri.Printf( PRINT_DEVELOPER, "WARNING: reused image %s with mixed flags (%i vs %i)\n", name, image->flags, flags ); + } + } + return image; + } + } + + // + // load the pic from disk + // + R_LoadImage( name, &pic, &width, &height, &picFormat, &picNumMips ); + if ( pic == NULL ) { + return NULL; + } + + checkFlagsTrue = IMGFLAG_PICMIP | IMGFLAG_MIPMAP | IMGFLAG_GENNORMALMAP; + checkFlagsFalse = IMGFLAG_CUBEMAP; + if (r_normalMapping->integer && (picFormat == GL_RGBA8) && (type == IMGTYPE_COLORALPHA) && + ((flags & checkFlagsTrue) == checkFlagsTrue) && !(flags & checkFlagsFalse)) + { + char normalName[MAX_QPATH]; + image_t *normalImage; + int normalWidth, normalHeight; + int/*imgFlags_t*/ normalFlags; + + normalFlags = (flags & ~IMGFLAG_GENNORMALMAP) | IMGFLAG_NOLIGHTSCALE; + + COM_StripExtension(name, normalName, MAX_QPATH); + Q_strcat(normalName, MAX_QPATH, "_n"); + + // find normalmap in case it's there + normalImage = R_FindImageFile(normalName, IMGTYPE_NORMAL, normalFlags); + + // if not, generate it + if (normalImage == NULL) + { + byte *normalPic; + int x, y; + + normalWidth = width; + normalHeight = height; + normalPic = (byte*)ri.Malloc(width * height * 4); + RGBAtoNormal(pic, normalPic, width, height, flags & IMGFLAG_CLAMPTOEDGE); + +#if 1 + // Brighten up the original image to work with the normal map + RGBAtoYCoCgA(pic, pic, width, height); + for (y = 0; y < height; y++) + { + byte *picbyte = pic + y * width * 4; + byte *normbyte = normalPic + y * width * 4; + for (x = 0; x < width; x++) + { + int div = MAX(normbyte[2] - 127, 16); + picbyte[0] = CLAMP(picbyte[0] * 128 / div, 0, 255); + picbyte += 4; + normbyte += 4; + } + } + YCoCgAtoRGBA(pic, pic, width, height); +#else + // Blur original image's luma to work with the normal map + { + byte *blurPic; + + RGBAtoYCoCgA(pic, pic, width, height); + blurPic = ri.Malloc(width * height); + + for (y = 1; y < height - 1; y++) + { + byte *picbyte = pic + y * width * 4; + byte *blurbyte = blurPic + y * width; + + picbyte += 4; + blurbyte += 1; + + for (x = 1; x < width - 1; x++) + { + int result; + + result = *(picbyte - (width + 1) * 4) + *(picbyte - width * 4) + *(picbyte - (width - 1) * 4) + + *(picbyte - 1 * 4) + *(picbyte ) + *(picbyte + 1 * 4) + + *(picbyte + (width - 1) * 4) + *(picbyte + width * 4) + *(picbyte + (width + 1) * 4); + + result /= 9; + + *blurbyte = result; + picbyte += 4; + blurbyte += 1; + } + } + + // FIXME: do borders + + for (y = 1; y < height - 1; y++) + { + byte *picbyte = pic + y * width * 4; + byte *blurbyte = blurPic + y * width; + + picbyte += 4; + blurbyte += 1; + + for (x = 1; x < width - 1; x++) + { + picbyte[0] = *blurbyte; + picbyte += 4; + blurbyte += 1; + } + } + + ri.Free(blurPic); + + YCoCgAtoRGBA(pic, pic, width, height); + } +#endif + + R_CreateImage( normalName, normalPic, normalWidth, normalHeight, IMGTYPE_NORMAL, normalFlags, 0 ); + ri.Free( normalPic ); + } + } + + // force mipmaps off if image is compressed but doesn't have enough mips + if ((flags & IMGFLAG_MIPMAP) && picFormat != GL_RGBA8 && picFormat != GL_SRGB8_ALPHA8_EXT) + { + int wh = MAX(width, height); + int neededMips = 0; + while (wh) + { + neededMips++; + wh >>= 1; + } + if (neededMips > picNumMips) + flags &= ~IMGFLAG_MIPMAP; + } + + image = R_CreateImage2( ( char * ) name, pic, width, height, picFormat, picNumMips, type, flags, 0 ); + ri.Free( pic ); + return image; +} + + +/* +================ +R_CreateDlightImage +================ +*/ +#define DLIGHT_SIZE 16 +static void R_CreateDlightImage( void ) { + int x,y; + byte data[DLIGHT_SIZE][DLIGHT_SIZE][4]; + int b; + + // make a centered inverse-square falloff blob for dynamic lighting + for (x=0 ; x<DLIGHT_SIZE ; x++) { + for (y=0 ; y<DLIGHT_SIZE ; y++) { + float d; + + d = ( DLIGHT_SIZE/2 - 0.5f - x ) * ( DLIGHT_SIZE/2 - 0.5f - x ) + + ( DLIGHT_SIZE/2 - 0.5f - y ) * ( DLIGHT_SIZE/2 - 0.5f - y ); + b = 4000 / d; + if (b > 255) { + b = 255; + } else if ( b < 75 ) { + b = 0; + } + data[y][x][0] = + data[y][x][1] = + data[y][x][2] = b; + data[y][x][3] = 255; + } + } + tr.dlightImage = R_CreateImage("*dlight", (byte *)data, DLIGHT_SIZE, DLIGHT_SIZE, IMGTYPE_COLORALPHA, IMGFLAG_CLAMPTOEDGE, 0 ); +} + + +/* +================= +R_InitFogTable +================= +*/ +void R_InitFogTable( void ) { + int i; + float d; + float exp; + + exp = 0.5; + + for ( i = 0 ; i < FOG_TABLE_SIZE ; i++ ) { + d = pow ( (float)i/(FOG_TABLE_SIZE-1), exp ); + + tr.fogTable[i] = d; + } +} + +/* +================ +R_FogFactor + +Returns a 0.0 to 1.0 fog density value +This is called for each texel of the fog texture on startup +and for each vertex of transparent shaders in fog dynamically +================ +*/ +float R_FogFactor( float s, float t ) { + float d; + + s -= 1.0/512; + if ( s < 0 ) { + return 0; + } + if ( t < 1.0/32 ) { + return 0; + } + if ( t < 31.0/32 ) { + s *= (t - 1.0f/32.0f) / (30.0f/32.0f); + } + + // we need to leave a lot of clamp range + s *= 8; + + if ( s > 1.0 ) { + s = 1.0; + } + + d = tr.fogTable[ (int)(s * (FOG_TABLE_SIZE-1)) ]; + + return d; +} + +/* +================ +R_CreateFogImage +================ +*/ +#define FOG_S 256 +#define FOG_T 32 +static void R_CreateFogImage( void ) { + int x,y; + byte *data; + float d; + + data = (byte*)ri.Hunk_AllocateTempMemory( FOG_S * FOG_T * 4 ); + + // S is distance, T is depth + for (x=0 ; x<FOG_S ; x++) { + for (y=0 ; y<FOG_T ; y++) { + d = R_FogFactor( ( x + 0.5f ) / FOG_S, ( y + 0.5f ) / FOG_T ); + + data[(y*FOG_S+x)*4+0] = + data[(y*FOG_S+x)*4+1] = + data[(y*FOG_S+x)*4+2] = 255; + data[(y*FOG_S+x)*4+3] = 255*d; + } + } + tr.fogImage = R_CreateImage("*fog", (byte *)data, FOG_S, FOG_T, IMGTYPE_COLORALPHA, IMGFLAG_CLAMPTOEDGE, 0 ); + ri.Hunk_FreeTempMemory( data ); +} + +/* +================== +R_CreateDefaultImage +================== +*/ +#define DEFAULT_SIZE 16 +static void R_CreateDefaultImage( void ) { + int x; + byte data[DEFAULT_SIZE][DEFAULT_SIZE][4]; + + // the default image will be a box, to allow you to see the mapping coordinates + Com_Memset( data, 32, sizeof( data ) ); + for ( x = 0 ; x < DEFAULT_SIZE ; x++ ) { + data[0][x][0] = + data[0][x][1] = + data[0][x][2] = + data[0][x][3] = 255; + + data[x][0][0] = + data[x][0][1] = + data[x][0][2] = + data[x][0][3] = 255; + + data[DEFAULT_SIZE-1][x][0] = + data[DEFAULT_SIZE-1][x][1] = + data[DEFAULT_SIZE-1][x][2] = + data[DEFAULT_SIZE-1][x][3] = 255; + + data[x][DEFAULT_SIZE-1][0] = + data[x][DEFAULT_SIZE-1][1] = + data[x][DEFAULT_SIZE-1][2] = + data[x][DEFAULT_SIZE-1][3] = 255; + } + tr.defaultImage = R_CreateImage("*default", (byte *)data, DEFAULT_SIZE, DEFAULT_SIZE, IMGTYPE_COLORALPHA, IMGFLAG_MIPMAP, 0); +} + +/* +================== +R_CreateBuiltinImages +================== +*/ +void R_CreateBuiltinImages( void ) { + int x,y; + byte data[DEFAULT_SIZE][DEFAULT_SIZE][4]; + + R_CreateDefaultImage(); + + // we use a solid white image instead of disabling texturing + Com_Memset( data, 255, sizeof( data ) ); + tr.whiteImage = R_CreateImage("*white", (byte *)data, 8, 8, IMGTYPE_COLORALPHA, IMGFLAG_NONE, 0); + + if (r_dlightMode->integer >= 2) + { + for( x = 0; x < MAX_DLIGHTS; x++) + { + tr.shadowCubemaps[x] = R_CreateImage(va("*shadowcubemap%i", x), NULL, PSHADOW_MAP_SIZE, PSHADOW_MAP_SIZE, IMGTYPE_COLORALPHA, IMGFLAG_CLAMPTOEDGE | IMGFLAG_CUBEMAP, 0); + } + } + + // with overbright bits active, we need an image which is some fraction of full color, + // for default lightmaps, etc + for (x=0 ; x<DEFAULT_SIZE ; x++) { + for (y=0 ; y<DEFAULT_SIZE ; y++) { + data[y][x][0] = + data[y][x][1] = + data[y][x][2] = tr.identityLightByte; + data[y][x][3] = 255; + } + } + + tr.identityLightImage = R_CreateImage("*identityLight", (byte *)data, 8, 8, IMGTYPE_COLORALPHA, IMGFLAG_NONE, 0); + + + for(x=0;x<32;x++) { + // scratchimage is usually used for cinematic drawing + tr.scratchImage[x] = R_CreateImage("*scratch", (byte *)data, DEFAULT_SIZE, DEFAULT_SIZE, IMGTYPE_COLORALPHA, IMGFLAG_PICMIP | IMGFLAG_CLAMPTOEDGE, 0); + } + + R_CreateDlightImage(); + R_CreateFogImage(); + + if (glRefConfig.framebufferObject) + { + int width, height, hdrFormat, rgbFormat; + + width = glConfig.vidWidth; + height = glConfig.vidHeight; + + hdrFormat = GL_RGBA8; + if (r_hdr->integer && glRefConfig.textureFloat) + hdrFormat = GL_RGBA16F_ARB; + + rgbFormat = GL_RGBA8; + + tr.renderImage = R_CreateImage("_render", NULL, width, height, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, hdrFormat); + + if (r_shadowBlur->integer) + tr.screenScratchImage = R_CreateImage("screenScratch", NULL, width, height, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, rgbFormat); + + //if (r_shadowBlur->integer || r_ssao->integer) + // tr.hdrDepthImage = R_CreateImage("*hdrDepth", NULL, width, height, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_INTENSITY32F_ARB); + if (r_shadowBlur->integer || r_ssao->integer) + tr.hdrDepthImage = R_CreateImage("*hdrDepth", NULL, width, height, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_R32F); + + if (r_drawSunRays->integer) + tr.sunRaysImage = R_CreateImage("*sunRays", NULL, width, height, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, rgbFormat); + + tr.renderDepthImage = R_CreateImage("*renderdepth", NULL, width, height, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_DEPTH_COMPONENT24_ARB); + tr.textureDepthImage = R_CreateImage("*texturedepth", NULL, PSHADOW_MAP_SIZE, PSHADOW_MAP_SIZE, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_DEPTH_COMPONENT24_ARB); + + { + byte *p; + + data[0][0][0] = 0; + data[0][0][1] = 0.45f * 255; + data[0][0][2] = 255; + data[0][0][3] = 255; + p = (byte*)data; + + tr.calcLevelsImage = R_CreateImage("*calcLevels", p, 1, 1, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, hdrFormat); + tr.targetLevelsImage = R_CreateImage("*targetLevels", p, 1, 1, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, hdrFormat); + tr.fixedLevelsImage = R_CreateImage("*fixedLevels", p, 1, 1, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, hdrFormat); + } + + for (x = 0; x < 2; x++) + { + tr.textureScratchImage[x] = R_CreateImage(va("*textureScratch%d", x), NULL, 256, 256, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_RGBA8); + } + for (x = 0; x < 2; x++) + { + tr.quarterImage[x] = R_CreateImage(va("*quarter%d", x), NULL, width / 2, height / 2, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_RGBA8); + } + + if (r_ssao->integer) + { + tr.screenSsaoImage = R_CreateImage("*screenSsao", NULL, width / 2, height / 2, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_RGBA8); + } + + for( x = 0; x < MAX_DRAWN_PSHADOWS; x++) + { + tr.pshadowMaps[x] = R_CreateImage(va("*shadowmap%i", x), NULL, PSHADOW_MAP_SIZE, PSHADOW_MAP_SIZE, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_DEPTH_COMPONENT24); + //qglTextureParameterfEXT(tr.pshadowMaps[x]->texnum, GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE); + //qglTextureParameterfEXT(tr.pshadowMaps[x]->texnum, GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); + } + + if (r_sunlightMode->integer) + { + for ( x = 0; x < 4; x++) + { + tr.sunShadowDepthImage[x] = R_CreateImage(va("*sunshadowdepth%i", x), NULL, r_shadowMapSize->integer, r_shadowMapSize->integer, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_DEPTH_COMPONENT24_ARB); + qglTextureParameterfEXT(tr.sunShadowDepthImage[x]->texnum, GL_TEXTURE_2D, GL_TEXTURE_COMPARE_MODE, GL_COMPARE_R_TO_TEXTURE); + qglTextureParameterfEXT(tr.sunShadowDepthImage[x]->texnum, GL_TEXTURE_2D, GL_TEXTURE_COMPARE_FUNC, GL_LEQUAL); + } + + tr.screenShadowImage = R_CreateImage("*screenShadow", NULL, width, height, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE, GL_RGBA8); + } + + if (r_cubeMapping->integer) + { + tr.renderCubeImage = R_CreateImage("*renderCube", NULL, r_cubemapSize->integer, r_cubemapSize->integer, IMGTYPE_COLORALPHA, IMGFLAG_NO_COMPRESSION | IMGFLAG_CLAMPTOEDGE | IMGFLAG_MIPMAP | IMGFLAG_CUBEMAP, rgbFormat); + } + } +} + + +/* +=============== +R_SetColorMappings +=============== +*/ +void R_SetColorMappings( void ) { + int i, j; + float g; + int inf; + + // setup the overbright lighting + tr.overbrightBits = r_overBrightBits->integer; + + // allow 2 overbright bits + if ( tr.overbrightBits > 2 ) { + tr.overbrightBits = 2; + } else if ( tr.overbrightBits < 0 ) { + tr.overbrightBits = 0; + } + + // don't allow more overbright bits than map overbright bits + if ( tr.overbrightBits > r_mapOverBrightBits->integer ) { + tr.overbrightBits = r_mapOverBrightBits->integer; + } + + tr.identityLight = 1.0f / ( 1 << tr.overbrightBits ); + tr.identityLightByte = 255 * tr.identityLight; + + + if ( r_intensity->value <= 1 ) { + ri.Cvar_Set( "r_intensity", "1" ); + } + + if ( r_gamma->value < 0.5f ) { + ri.Cvar_Set( "r_gamma", "0.5" ); + } else if ( r_gamma->value > 3.0f ) { + ri.Cvar_Set( "r_gamma", "3.0" ); + } + + g = r_gamma->value; + + for ( i = 0; i < 256; i++ ) { + if ( g == 1 ) { + inf = i; + } else { + inf = 255 * pow ( i/255.0f, 1.0f / g ) + 0.5f; + } + + if (inf < 0) { + inf = 0; + } + if (inf > 255) { + inf = 255; + } + s_gammatable[i] = inf; + } + + for (i=0 ; i<256 ; i++) { + j = i * r_intensity->value; + if (j > 255) { + j = 255; + } + s_intensitytable[i] = j; + } + + if ( glConfig.deviceSupportsGamma ) + { + GLimp_SetGamma( s_gammatable, s_gammatable, s_gammatable ); + } +} + +/* +=============== +R_InitImages +=============== +*/ +void R_InitImages( void ) { + Com_Memset(hashTable, 0, sizeof(hashTable)); + // build brightness translation tables + R_SetColorMappings(); + + // create default texture and white texture + R_CreateBuiltinImages(); +} + +/* +=============== +R_DeleteTextures +=============== +*/ +void R_DeleteTextures( void ) { + int i; + + for ( i=0; i<tr.numImages ; i++ ) { + qglDeleteTextures( 1, &tr.images[i]->texnum ); + } + Com_Memset( tr.images, 0, sizeof( tr.images ) ); + + tr.numImages = 0; + + GL_BindNullTextures(); +} + +/* +============================================================================ + +SKINS + +============================================================================ +*/ + +/* +================== +CommaParse + +This is unfortunate, but the skin files aren't +compatable with our normal parsing rules. +================== +*/ +static const char *CommaParse( char **data_p ) { + int c = 0, len; + char *data; + static char com_token[MAX_TOKEN_CHARS]; + + data = *data_p; + len = 0; + com_token[0] = 0; + + // make sure incoming data is valid + if ( !data ) { + *data_p = NULL; + return com_token; + } + + while ( 1 ) { + // skip whitespace + while( (c = *data) <= ' ') { + if( !c ) { + break; + } + data++; + } + + + c = *data; + + // skip double slash comments + if ( c == '/' && data[1] == '/' ) + { + data += 2; + while (*data && *data != '\n') { + data++; + } + } + // skip /* */ comments + else if ( c=='/' && data[1] == '*' ) + { + data += 2; + while ( *data && ( *data != '*' || data[1] != '/' ) ) + { + data++; + } + if ( *data ) + { + data += 2; + } + } + else + { + break; + } + } + + if ( c == 0 ) { + return ""; + } + + // handle quoted strings + if (c == '\"') + { + data++; + while (1) + { + c = *data++; + if (c=='\"' || !c) + { + com_token[len] = 0; + *data_p = ( char * ) data; + return com_token; + } + if (len < MAX_TOKEN_CHARS - 1) + { + com_token[len] = c; + len++; + } + } + } + + // parse a regular word + do + { + if (len < MAX_TOKEN_CHARS - 1) + { + com_token[len] = c; + len++; + } + data++; + c = *data; + } while (c>32 && c != ',' ); + + com_token[len] = 0; + + *data_p = ( char * ) data; + return com_token; +} + + +/* +=============== +RE_RegisterSkin + +=============== +*/ +qhandle_t RE_RegisterSkin( const char *name ) { + skinSurface_t parseSurfaces[MAX_SKIN_SURFACES]; + qhandle_t hSkin; + skin_t *skin; + skinSurface_t *surf; + union { + char *c; + void *v; + } text; + char *text_p; + const char *token; + char surfName[MAX_QPATH]; + + if ( !name || !name[0] ) { + ri.Printf( PRINT_DEVELOPER, "Empty name passed to RE_RegisterSkin\n" ); + return 0; + } + + if ( strlen( name ) >= MAX_QPATH ) { + ri.Printf( PRINT_DEVELOPER, "Skin name exceeds MAX_QPATH\n" ); + return 0; + } + + + // see if the skin is already loaded + for ( hSkin = 1; hSkin < tr.numSkins ; hSkin++ ) { + skin = tr.skins[hSkin]; + if ( !Q_stricmp( skin->name, name ) ) { + if( skin->numSurfaces == 0 ) { + return 0; // default skin + } + return hSkin; + } + } + + // allocate a new skin + if ( tr.numSkins == MAX_SKINS ) { + ri.Printf( PRINT_WARNING, "WARNING: RE_RegisterSkin( '%s' ) MAX_SKINS hit\n", name ); + return 0; + } + tr.numSkins++; + skin = (skin_t*)ri.Hunk_Alloc( sizeof( skin_t ), h_low ); + tr.skins[hSkin] = skin; + Q_strncpyz( skin->name, name, sizeof( skin->name ) ); + skin->numSurfaces = 0; + + R_IssuePendingRenderCommands(); + + // If not a .skin file, load as a single shader + if ( strcmp( name + strlen( name ) - 5, ".skin" ) ) { + skin->numSurfaces = 1; + skin->surfaces = (skinSurface_t*)ri.Hunk_Alloc( sizeof( skinSurface_t ), h_low ); + skin->surfaces[0].shader = R_FindShader( name, LIGHTMAP_NONE, true ); + return hSkin; + } + + // load and parse the skin file + ri.FS_ReadFile( name, &text.v ); + if ( !text.c ) { + return 0; + } + + int totalSurfaces = 0; + text_p = text.c; + while ( text_p && *text_p ) { + // get surface name + token = CommaParse( &text_p ); + Q_strncpyz( surfName, token, sizeof( surfName ) ); + + if ( !token[0] ) { + break; + } + // lowercase the surface name so skin compares are faster + Q_strlwr( surfName ); + + if ( *text_p == ',' ) { + text_p++; + } + + if ( strstr( token, "tag_" ) ) { + continue; + } + + // parse the shader name + token = CommaParse( &text_p ); + + if ( skin->numSurfaces < MAX_SKIN_SURFACES ) { + surf = &parseSurfaces[skin->numSurfaces]; + Q_strncpyz( surf->name, surfName, sizeof( surf->name ) ); + surf->shader = R_FindShader( token, LIGHTMAP_NONE, true ); + skin->numSurfaces++; + } + + totalSurfaces++; + } + + ri.FS_FreeFile( text.v ); + + if ( totalSurfaces > MAX_SKIN_SURFACES ) { + ri.Printf( PRINT_WARNING, "WARNING: Ignoring excess surfaces (found %d, max is %d) in skin '%s'!\n", + totalSurfaces, MAX_SKIN_SURFACES, name ); + } + + // never let a skin have 0 shaders + if ( skin->numSurfaces == 0 ) { + return 0; // use default skin + } + + // copy surfaces to skin + skin->surfaces = (skinSurface_t*)ri.Hunk_Alloc( skin->numSurfaces * sizeof( skinSurface_t ), h_low ); + memcpy( skin->surfaces, parseSurfaces, skin->numSurfaces * sizeof( skinSurface_t ) ); + + return hSkin; +} + + +/* +=============== +R_InitSkins +=============== +*/ +void R_InitSkins( void ) { + skin_t *skin; + + tr.numSkins = 1; + + // make the default skin have all default shaders + skin = tr.skins[0] = (skin_t*)ri.Hunk_Alloc( sizeof( skin_t ), h_low ); + Q_strncpyz( skin->name, "<default skin>", sizeof( skin->name ) ); + skin->numSurfaces = 1; + skin->surfaces = (skinSurface_t*)ri.Hunk_Alloc( sizeof( skinSurface_t ), h_low ); + skin->surfaces[0].shader = tr.defaultShader; +} + +/* +=============== +R_GetSkinByHandle +=============== +*/ +skin_t *R_GetSkinByHandle( qhandle_t hSkin ) { + if ( hSkin < 1 || hSkin >= tr.numSkins ) { + return tr.skins[0]; + } + return tr.skins[ hSkin ]; +} + +/* +=============== +R_SkinList_f +=============== +*/ +void R_SkinList_f( void ) { + int i, j; + skin_t *skin; + + ri.Printf (PRINT_ALL, "------------------\n"); + + for ( i = 0 ; i < tr.numSkins ; i++ ) { + skin = tr.skins[i]; + + ri.Printf( PRINT_ALL, "%3i:%s (%d surfaces)\n", i, skin->name, skin->numSurfaces ); + for ( j = 0 ; j < skin->numSurfaces ; j++ ) { + ri.Printf( PRINT_ALL, " %s = %s\n", + skin->surfaces[j].name, skin->surfaces[j].shader->name ); + } + } + ri.Printf (PRINT_ALL, "------------------\n"); +} |