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authorxolatile2025-07-16 23:07:43 +0200
committerxolatile2025-07-16 23:07:43 +0200
commit7256502afa0babe60fcafbd2888cd3e33c3f9b6b (patch)
tree8a8495662a69bdadc4b5d9152656b9f02a44d668 /src/engine/texture.cpp
parentbc596ac9d4cdd00abf537b88d3c544be161330cc (diff)
downloadxolatile-badassbug-7256502afa0babe60fcafbd2888cd3e33c3f9b6b.tar.xz
xolatile-badassbug-7256502afa0babe60fcafbd2888cd3e33c3f9b6b.tar.zst
Source code, broken...
Diffstat (limited to 'src/engine/texture.cpp')
-rw-r--r--src/engine/texture.cpp3644
1 files changed, 3644 insertions, 0 deletions
diff --git a/src/engine/texture.cpp b/src/engine/texture.cpp
new file mode 100644
index 0000000..964d39d
--- /dev/null
+++ b/src/engine/texture.cpp
@@ -0,0 +1,3644 @@
+// texture.cpp: texture slot management
+
+#include "engine.h"
+#include "SDL_image.h"
+
+#ifndef SDL_IMAGE_VERSION_ATLEAST
+#define SDL_IMAGE_VERSION_ATLEAST(X, Y, Z) \
+ (SDL_VERSIONNUM(SDL_IMAGE_MAJOR_VERSION, SDL_IMAGE_MINOR_VERSION, SDL_IMAGE_PATCHLEVEL) >= SDL_VERSIONNUM(X, Y, Z))
+#endif
+
+template<int BPP> static void halvetexture(uchar * RESTRICT src, uint sw, uint sh, uint stride, uchar * RESTRICT dst)
+{
+ for(uchar *yend = &src[sh*stride]; src < yend;)
+ {
+ for(uchar *xend = &src[sw*BPP], *xsrc = src; xsrc < xend; xsrc += 2*BPP, dst += BPP)
+ {
+ loopi(BPP) dst[i] = (uint(xsrc[i]) + uint(xsrc[i+BPP]) + uint(xsrc[stride+i]) + uint(xsrc[stride+i+BPP]))>>2;
+ }
+ src += 2*stride;
+ }
+}
+
+template<int BPP> static void shifttexture(uchar * RESTRICT src, uint sw, uint sh, uint stride, uchar * RESTRICT dst, uint dw, uint dh)
+{
+ uint wfrac = sw/dw, hfrac = sh/dh, wshift = 0, hshift = 0;
+ while(dw<<wshift < sw) wshift++;
+ while(dh<<hshift < sh) hshift++;
+ uint tshift = wshift + hshift;
+ for(uchar *yend = &src[sh*stride]; src < yend;)
+ {
+ for(uchar *xend = &src[sw*BPP], *xsrc = src; xsrc < xend; xsrc += wfrac*BPP, dst += BPP)
+ {
+ uint t[BPP] = {0};
+ for(uchar *ycur = xsrc, *xend = &ycur[wfrac*BPP], *yend = &src[hfrac*stride];
+ ycur < yend;
+ ycur += stride, xend += stride)
+ {
+ for(uchar *xcur = ycur; xcur < xend; xcur += BPP)
+ loopi(BPP) t[i] += xcur[i];
+ }
+ loopi(BPP) dst[i] = t[i] >> tshift;
+ }
+ src += hfrac*stride;
+ }
+}
+
+template<int BPP> static void scaletexture(uchar * RESTRICT src, uint sw, uint sh, uint stride, uchar * RESTRICT dst, uint dw, uint dh)
+{
+ uint wfrac = (sw<<12)/dw, hfrac = (sh<<12)/dh, darea = dw*dh, sarea = sw*sh;
+ int over, under;
+ for(over = 0; (darea>>over) > sarea; over++);
+ for(under = 0; (darea<<under) < sarea; under++);
+ uint cscale = clamp(under, over - 12, 12),
+ ascale = clamp(12 + under - over, 0, 24),
+ dscale = ascale + 12 - cscale,
+ area = ((ullong)darea<<ascale)/sarea;
+ dw *= wfrac;
+ dh *= hfrac;
+ for(uint y = 0; y < dh; y += hfrac)
+ {
+ const uint yn = y + hfrac - 1, yi = y>>12, h = (yn>>12) - yi, ylow = ((yn|(-int(h)>>24))&0xFFFU) + 1 - (y&0xFFFU), yhigh = (yn&0xFFFU) + 1;
+ const uchar *ysrc = &src[yi*stride];
+ for(uint x = 0; x < dw; x += wfrac, dst += BPP)
+ {
+ const uint xn = x + wfrac - 1, xi = x>>12, w = (xn>>12) - xi, xlow = ((w+0xFFFU)&0x1000U) - (x&0xFFFU), xhigh = (xn&0xFFFU) + 1;
+ const uchar *xsrc = &ysrc[xi*BPP], *xend = &xsrc[w*BPP];
+ uint t[BPP] = {0};
+ for(const uchar *xcur = &xsrc[BPP]; xcur < xend; xcur += BPP)
+ loopi(BPP) t[i] += xcur[i];
+ loopi(BPP) t[i] = (ylow*(t[i] + ((xsrc[i]*xlow + xend[i]*xhigh)>>12)))>>cscale;
+ if(h)
+ {
+ xsrc += stride;
+ xend += stride;
+ for(uint hcur = h; --hcur; xsrc += stride, xend += stride)
+ {
+ uint c[BPP] = {0};
+ for(const uchar *xcur = &xsrc[BPP]; xcur < xend; xcur += BPP)
+ loopi(BPP) c[i] += xcur[i];
+ loopi(BPP) t[i] += ((c[i]<<12) + xsrc[i]*xlow + xend[i]*xhigh)>>cscale;
+ }
+ uint c[BPP] = {0};
+ for(const uchar *xcur = &xsrc[BPP]; xcur < xend; xcur += BPP)
+ loopi(BPP) c[i] += xcur[i];
+ loopi(BPP) t[i] += (yhigh*(c[i] + ((xsrc[i]*xlow + xend[i]*xhigh)>>12)))>>cscale;
+ }
+ loopi(BPP) dst[i] = (t[i] * area)>>dscale;
+ }
+ }
+}
+
+static void scaletexture(uchar * RESTRICT src, uint sw, uint sh, uint bpp, uint pitch, uchar * RESTRICT dst, uint dw, uint dh)
+{
+ if(sw == dw*2 && sh == dh*2)
+ {
+ switch(bpp)
+ {
+ case 1: return halvetexture<1>(src, sw, sh, pitch, dst);
+ case 2: return halvetexture<2>(src, sw, sh, pitch, dst);
+ case 3: return halvetexture<3>(src, sw, sh, pitch, dst);
+ case 4: return halvetexture<4>(src, sw, sh, pitch, dst);
+ }
+ }
+ else if(sw < dw || sh < dh || sw&(sw-1) || sh&(sh-1) || dw&(dw-1) || dh&(dh-1))
+ {
+ switch(bpp)
+ {
+ case 1: return scaletexture<1>(src, sw, sh, pitch, dst, dw, dh);
+ case 2: return scaletexture<2>(src, sw, sh, pitch, dst, dw, dh);
+ case 3: return scaletexture<3>(src, sw, sh, pitch, dst, dw, dh);
+ case 4: return scaletexture<4>(src, sw, sh, pitch, dst, dw, dh);
+ }
+ }
+ else
+ {
+ switch(bpp)
+ {
+ case 1: return shifttexture<1>(src, sw, sh, pitch, dst, dw, dh);
+ case 2: return shifttexture<2>(src, sw, sh, pitch, dst, dw, dh);
+ case 3: return shifttexture<3>(src, sw, sh, pitch, dst, dw, dh);
+ case 4: return shifttexture<4>(src, sw, sh, pitch, dst, dw, dh);
+ }
+ }
+}
+
+static void reorientnormals(uchar * RESTRICT src, int sw, int sh, int bpp, int stride, uchar * RESTRICT dst, bool flipx, bool flipy, bool swapxy)
+{
+ int stridex = bpp, stridey = bpp;
+ if(swapxy) stridex *= sh; else stridey *= sw;
+ if(flipx) { dst += (sw-1)*stridex; stridex = -stridex; }
+ if(flipy) { dst += (sh-1)*stridey; stridey = -stridey; }
+ uchar *srcrow = src;
+ loopi(sh)
+ {
+ for(uchar *curdst = dst, *src = srcrow, *end = &srcrow[sw*bpp]; src < end;)
+ {
+ uchar nx = *src++, ny = *src++;
+ if(flipx) nx = 255-nx;
+ if(flipy) ny = 255-ny;
+ if(swapxy) swap(nx, ny);
+ curdst[0] = nx;
+ curdst[1] = ny;
+ curdst[2] = *src++;
+ if(bpp > 3) curdst[3] = *src++;
+ curdst += stridex;
+ }
+ srcrow += stride;
+ dst += stridey;
+ }
+}
+
+template<int BPP>
+static inline void reorienttexture(uchar * RESTRICT src, int sw, int sh, int stride, uchar * RESTRICT dst, bool flipx, bool flipy, bool swapxy)
+{
+ int stridex = BPP, stridey = BPP;
+ if(swapxy) stridex *= sh; else stridey *= sw;
+ if(flipx) { dst += (sw-1)*stridex; stridex = -stridex; }
+ if(flipy) { dst += (sh-1)*stridey; stridey = -stridey; }
+ uchar *srcrow = src;
+ loopi(sh)
+ {
+ for(uchar *curdst = dst, *src = srcrow, *end = &srcrow[sw*BPP]; src < end;)
+ {
+ loopk(BPP) curdst[k] = *src++;
+ curdst += stridex;
+ }
+ srcrow += stride;
+ dst += stridey;
+ }
+}
+
+static void reorienttexture(uchar * RESTRICT src, int sw, int sh, int bpp, int stride, uchar * RESTRICT dst, bool flipx, bool flipy, bool swapxy)
+{
+ switch(bpp)
+ {
+ case 1: return reorienttexture<1>(src, sw, sh, stride, dst, flipx, flipy, swapxy);
+ case 2: return reorienttexture<2>(src, sw, sh, stride, dst, flipx, flipy, swapxy);
+ case 3: return reorienttexture<3>(src, sw, sh, stride, dst, flipx, flipy, swapxy);
+ case 4: return reorienttexture<4>(src, sw, sh, stride, dst, flipx, flipy, swapxy);
+ }
+}
+
+static void reorients3tc(GLenum format, int blocksize, int w, int h, uchar *src, uchar *dst, bool flipx, bool flipy, bool swapxy, bool normals = false)
+{
+ int bx1 = 0, by1 = 0, bx2 = min(w, 4), by2 = min(h, 4), bw = (w+3)/4, bh = (h+3)/4, stridex = blocksize, stridey = blocksize;
+ if(swapxy) stridex *= bw; else stridey *= bh;
+ if(flipx) { dst += (bw-1)*stridex; stridex = -stridex; bx1 += 4-bx2; bx2 = 4; }
+ if(flipy) { dst += (bh-1)*stridey; stridey = -stridey; by1 += 4-by2; by2 = 4; }
+ loopi(bh)
+ {
+ for(uchar *curdst = dst, *end = &src[bw*blocksize]; src < end; src += blocksize, curdst += stridex)
+ {
+ if(format == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT)
+ {
+ ullong salpha = lilswap(*(const ullong *)src), dalpha = 0;
+ uint xmask = flipx ? 15 : 0, ymask = flipy ? 15 : 0, xshift = 2, yshift = 4;
+ if(swapxy) swap(xshift, yshift);
+ for(int y = by1; y < by2; y++) for(int x = bx1; x < bx2; x++)
+ {
+ dalpha |= ((salpha&15) << (((xmask^x)<<xshift) + ((ymask^y)<<yshift)));
+ salpha >>= 4;
+ }
+ *(ullong *)curdst = lilswap(dalpha);
+ src += 8;
+ curdst += 8;
+ }
+ else if(format == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
+ {
+ uchar alpha1 = src[0], alpha2 = src[1];
+ ullong salpha = lilswap(*(const ushort *)&src[2]) + ((ullong)lilswap(*(const uint *)&src[4]) << 16), dalpha = 0;
+ uint xmask = flipx ? 7 : 0, ymask = flipy ? 7 : 0, xshift = 0, yshift = 2;
+ if(swapxy) swap(xshift, yshift);
+ for(int y = by1; y < by2; y++) for(int x = bx1; x < bx2; x++)
+ {
+ dalpha |= ((salpha&7) << (3*((xmask^x)<<xshift) + ((ymask^y)<<yshift)));
+ salpha >>= 3;
+ }
+ curdst[0] = alpha1;
+ curdst[1] = alpha2;
+ *(ushort *)&curdst[2] = lilswap(ushort(dalpha));
+ *(ushort *)&curdst[4] = lilswap(ushort(dalpha>>16));
+ *(ushort *)&curdst[6] = lilswap(ushort(dalpha>>32));
+ src += 8;
+ curdst += 8;
+ }
+
+ ushort color1 = lilswap(*(const ushort *)src), color2 = lilswap(*(const ushort *)&src[2]);
+ uint sbits = lilswap(*(const uint *)&src[4]);
+ if(normals)
+ {
+ ushort ncolor1 = color1, ncolor2 = color2;
+ if(flipx)
+ {
+ ncolor1 = (ncolor1 & ~0xF800) | (0xF800 - (ncolor1 & 0xF800));
+ ncolor2 = (ncolor2 & ~0xF800) | (0xF800 - (ncolor2 & 0xF800));
+ }
+ if(flipy)
+ {
+ ncolor1 = (ncolor1 & ~0x7E0) | (0x7E0 - (ncolor1 & 0x7E0));
+ ncolor2 = (ncolor2 & ~0x7E0) | (0x7E0 - (ncolor2 & 0x7E0));
+ }
+ if(swapxy)
+ {
+ ncolor1 = (ncolor1 & 0x1F) | (((((ncolor1 >> 11) & 0x1F) * 0x3F) / 0x1F) << 5) | (((((ncolor1 >> 5) & 0x3F) * 0x1F) / 0x3F) << 11);
+ ncolor2 = (ncolor2 & 0x1F) | (((((ncolor2 >> 11) & 0x1F) * 0x3F) / 0x1F) << 5) | (((((ncolor2 >> 5) & 0x3F) * 0x1F) / 0x3F) << 11);
+ }
+ if(color1 <= color2 && ncolor1 > ncolor2) { color1 = ncolor2; color2 = ncolor1; }
+ else { color1 = ncolor1; color2 = ncolor2; }
+ }
+ uint dbits = 0, xmask = flipx ? 3 : 0, ymask = flipy ? 3 : 0, xshift = 1, yshift = 3;
+ if(swapxy) swap(xshift, yshift);
+ for(int y = by1; y < by2; y++) for(int x = bx1; x < bx2; x++)
+ {
+ dbits |= ((sbits&3) << (((xmask^x)<<xshift) + ((ymask^y)<<yshift)));
+ sbits >>= 2;
+ }
+ *(ushort *)curdst = lilswap(color1);
+ *(ushort *)&curdst[2] = lilswap(color2);
+ *(uint *)&curdst[4] = lilswap(dbits);
+
+ if(blocksize > 8) { src -= 8; curdst -= 8; }
+ }
+ dst += stridey;
+ }
+}
+
+static void reorientrgtc(GLenum format, int blocksize, int w, int h, uchar *src, uchar *dst, bool flipx, bool flipy, bool swapxy)
+{
+ int bx1 = 0, by1 = 0, bx2 = min(w, 4), by2 = min(h, 4), bw = (w+3)/4, bh = (h+3)/4, stridex = blocksize, stridey = blocksize;
+ if(swapxy) stridex *= bw; else stridey *= bh;
+ if(flipx) { dst += (bw-1)*stridex; stridex = -stridex; bx1 += 4-bx2; bx2 = 4; }
+ if(flipy) { dst += (bh-1)*stridey; stridey = -stridey; by1 += 4-by2; by2 = 4; }
+ stridex -= blocksize;
+ loopi(bh)
+ {
+ for(uchar *curdst = dst, *end = &src[bw*blocksize]; src < end; curdst += stridex)
+ {
+ loopj(blocksize/8)
+ {
+ uchar val1 = src[0], val2 = src[1];
+ ullong sval = lilswap(*(const ushort *)&src[2]) + ((ullong)lilswap(*(const uint *)&src[4] )<< 16), dval = 0;
+ uint xmask = flipx ? 7 : 0, ymask = flipy ? 7 : 0, xshift = 0, yshift = 2;
+ if(swapxy) swap(xshift, yshift);
+ for(int y = by1; y < by2; y++) for(int x = bx1; x < bx2; x++)
+ {
+ dval |= ((sval&7) << (3*((xmask^x)<<xshift) + ((ymask^y)<<yshift)));
+ sval >>= 3;
+ }
+ curdst[0] = val1;
+ curdst[1] = val2;
+ *(ushort *)&curdst[2] = lilswap(ushort(dval));
+ *(ushort *)&curdst[4] = lilswap(ushort(dval>>16));
+ *(ushort *)&curdst[6] = lilswap(ushort(dval>>32));
+ src += 8;
+ curdst += 8;
+ }
+ }
+ dst += stridey;
+ }
+}
+
+#define writetex(t, body) do \
+ { \
+ uchar *dstrow = t.data; \
+ loop(y, t.h) \
+ { \
+ for(uchar *dst = dstrow, *end = &dstrow[t.w*t.bpp]; dst < end; dst += t.bpp) \
+ { \
+ body; \
+ } \
+ dstrow += t.pitch; \
+ } \
+ } while(0)
+
+#define readwritetex(t, s, body) do \
+ { \
+ uchar *dstrow = t.data, *srcrow = s.data; \
+ loop(y, t.h) \
+ { \
+ for(uchar *dst = dstrow, *src = srcrow, *end = &srcrow[s.w*s.bpp]; src < end; dst += t.bpp, src += s.bpp) \
+ { \
+ body; \
+ } \
+ dstrow += t.pitch; \
+ srcrow += s.pitch; \
+ } \
+ } while(0)
+
+#define read2writetex(t, s1, src1, s2, src2, body) do \
+ { \
+ uchar *dstrow = t.data, *src1row = s1.data, *src2row = s2.data; \
+ loop(y, t.h) \
+ { \
+ for(uchar *dst = dstrow, *end = &dstrow[t.w*t.bpp], *src1 = src1row, *src2 = src2row; dst < end; dst += t.bpp, src1 += s1.bpp, src2 += s2.bpp) \
+ { \
+ body; \
+ } \
+ dstrow += t.pitch; \
+ src1row += s1.pitch; \
+ src2row += s2.pitch; \
+ } \
+ } while(0)
+
+#define readwritergbtex(t, s, body) \
+ { \
+ if(t.bpp >= 3) readwritetex(t, s, body); \
+ else \
+ { \
+ ImageData rgb(t.w, t.h, 3); \
+ read2writetex(rgb, t, orig, s, src, { dst[0] = dst[1] = dst[2] = orig[0]; body; }); \
+ t.replace(rgb); \
+ } \
+ }
+
+void forcergbimage(ImageData &s)
+{
+ if(s.bpp >= 3) return;
+ ImageData d(s.w, s.h, 3);
+ readwritetex(d, s, { dst[0] = dst[1] = dst[2] = src[0]; });
+ s.replace(d);
+}
+
+#define readwritergbatex(t, s, body) \
+ { \
+ if(t.bpp >= 4) { readwritetex(t, s, body); } \
+ else \
+ { \
+ ImageData rgba(t.w, t.h, 4); \
+ if(t.bpp==3) read2writetex(rgba, t, orig, s, src, { dst[0] = orig[0]; dst[1] = orig[1]; dst[2] = orig[2]; body; }); \
+ else read2writetex(rgba, t, orig, s, src, { dst[0] = dst[1] = dst[2] = orig[0]; body; }); \
+ t.replace(rgba); \
+ } \
+ }
+
+void forcergbaimage(ImageData &s)
+{
+ if(s.bpp >= 4) return;
+ ImageData d(s.w, s.h, 4);
+ if(s.bpp==3) readwritetex(d, s, { dst[0] = src[0]; dst[1] = src[1]; dst[2] = src[2]; });
+ else readwritetex(d, s, { dst[0] = dst[1] = dst[2] = src[0]; });
+ s.replace(d);
+}
+
+void swizzleimage(ImageData &s)
+{
+ if(s.bpp==2)
+ {
+ ImageData d(s.w, s.h, 4);
+ readwritetex(d, s, { dst[0] = dst[1] = dst[2] = src[0]; dst[3] = src[1]; });
+ s.replace(d);
+ }
+ else if(s.bpp==1)
+ {
+ ImageData d(s.w, s.h, 3);
+ readwritetex(d, s, { dst[0] = dst[1] = dst[2] = src[0]; });
+ s.replace(d);
+ }
+}
+
+void texreorient(ImageData &s, bool flipx, bool flipy, bool swapxy, int type = TEX_DIFFUSE)
+{
+ ImageData d(swapxy ? s.h : s.w, swapxy ? s.w : s.h, s.bpp, s.levels, s.align, s.compressed);
+ switch(s.compressed)
+ {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ {
+ uchar *dst = d.data, *src = s.data;
+ loopi(s.levels)
+ {
+ reorients3tc(s.compressed, s.bpp, max(s.w>>i, 1), max(s.h>>i, 1), src, dst, flipx, flipy, swapxy, type==TEX_NORMAL);
+ src += s.calclevelsize(i);
+ dst += d.calclevelsize(i);
+ }
+ break;
+ }
+ case GL_COMPRESSED_RED_RGTC1:
+ case GL_COMPRESSED_RG_RGTC2:
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ {
+ uchar *dst = d.data, *src = s.data;
+ loopi(s.levels)
+ {
+ reorientrgtc(s.compressed, s.bpp, max(s.w>>i, 1), max(s.h>>i, 1), src, dst, flipx, flipy, swapxy);
+ src += s.calclevelsize(i);
+ dst += d.calclevelsize(i);
+ }
+ break;
+ }
+ default:
+ if(type==TEX_NORMAL && s.bpp >= 3) reorientnormals(s.data, s.w, s.h, s.bpp, s.pitch, d.data, flipx, flipy, swapxy);
+ else reorienttexture(s.data, s.w, s.h, s.bpp, s.pitch, d.data, flipx, flipy, swapxy);
+ break;
+ }
+ s.replace(d);
+}
+
+extern const texrotation texrotations[8] =
+{
+ { false, false, false }, // 0: default
+ { false, true, true }, // 1: 90 degrees
+ { true, true, false }, // 2: 180 degrees
+ { true, false, true }, // 3: 270 degrees
+ { true, false, false }, // 4: flip X
+ { false, true, false }, // 5: flip Y
+ { false, false, true }, // 6: transpose
+ { true, true, true }, // 7: flipped transpose
+};
+
+void texrotate(ImageData &s, int numrots, int type = TEX_DIFFUSE)
+{
+ if(numrots>=1 && numrots<=7)
+ {
+ const texrotation &r = texrotations[numrots];
+ texreorient(s, r.flipx, r.flipy, r.swapxy, type);
+ }
+}
+
+void texoffset(ImageData &s, int xoffset, int yoffset)
+{
+ xoffset = max(xoffset, 0);
+ xoffset %= s.w;
+ yoffset = max(yoffset, 0);
+ yoffset %= s.h;
+ if(!xoffset && !yoffset) return;
+ ImageData d(s.w, s.h, s.bpp);
+ uchar *src = s.data;
+ loop(y, s.h)
+ {
+ uchar *dst = (uchar *)d.data+((y+yoffset)%d.h)*d.pitch;
+ memcpy(dst+xoffset*s.bpp, src, (s.w-xoffset)*s.bpp);
+ memcpy(dst, src+(s.w-xoffset)*s.bpp, xoffset*s.bpp);
+ src += s.pitch;
+ }
+ s.replace(d);
+}
+
+void texmad(ImageData &s, const vec &mul, const vec &add)
+{
+ if(s.bpp < 3 && (mul.x != mul.y || mul.y != mul.z || add.x != add.y || add.y != add.z))
+ swizzleimage(s);
+ int maxk = min(int(s.bpp), 3);
+ writetex(s,
+ loopk(maxk) dst[k] = uchar(clamp(dst[k]*mul[k] + 255*add[k], 0.0f, 255.0f));
+ );
+}
+
+void texcolorify(ImageData &s, const vec &color, vec weights)
+{
+ if(s.bpp < 3) return;
+ if(weights.iszero()) weights = vec(0.21f, 0.72f, 0.07f);
+ writetex(s,
+ float lum = dst[0]*weights.x + dst[1]*weights.y + dst[2]*weights.z;
+ loopk(3) dst[k] = uchar(clamp(lum*color[k], 0.0f, 255.0f));
+ );
+}
+
+void texcolormask(ImageData &s, const vec &color1, const vec &color2)
+{
+ if(s.bpp < 4) return;
+ ImageData d(s.w, s.h, 3);
+ readwritetex(d, s,
+ vec color;
+ color.lerp(color2, color1, src[3]/255.0f);
+ loopk(3) dst[k] = uchar(clamp(color[k]*src[k], 0.0f, 255.0f));
+ );
+ s.replace(d);
+}
+
+void texdup(ImageData &s, int srcchan, int dstchan)
+{
+ if(srcchan==dstchan || max(srcchan, dstchan) >= s.bpp) return;
+ writetex(s, dst[dstchan] = dst[srcchan]);
+}
+
+void texmix(ImageData &s, int c1, int c2, int c3, int c4)
+{
+ int numchans = c1 < 0 ? 0 : (c2 < 0 ? 1 : (c3 < 0 ? 2 : (c4 < 0 ? 3 : 4)));
+ if(numchans <= 0) return;
+ ImageData d(s.w, s.h, numchans);
+ readwritetex(d, s,
+ switch(numchans)
+ {
+ case 4: dst[3] = src[c4];
+ case 3: dst[2] = src[c3];
+ case 2: dst[1] = src[c2];
+ case 1: dst[0] = src[c1];
+ }
+ );
+ s.replace(d);
+}
+
+void texgrey(ImageData &s)
+{
+ if(s.bpp <= 2) return;
+ ImageData d(s.w, s.h, s.bpp >= 4 ? 2 : 1);
+ if(s.bpp >= 4)
+ {
+ readwritetex(d, s,
+ dst[0] = src[0];
+ dst[1] = src[3];
+ );
+ }
+ else
+ {
+ readwritetex(d, s, dst[0] = src[0]);
+ }
+ s.replace(d);
+}
+
+void texpremul(ImageData &s)
+{
+ switch(s.bpp)
+ {
+ case 2:
+ writetex(s,
+ dst[0] = uchar((uint(dst[0])*uint(dst[1]))/255);
+ );
+ break;
+ case 4:
+ writetex(s,
+ uint alpha = dst[3];
+ dst[0] = uchar((uint(dst[0])*alpha)/255);
+ dst[1] = uchar((uint(dst[1])*alpha)/255);
+ dst[2] = uchar((uint(dst[2])*alpha)/255);
+ );
+ break;
+ }
+}
+
+void texagrad(ImageData &s, float x2, float y2, float x1, float y1)
+{
+ if(s.bpp != 2 && s.bpp != 4) return;
+ y1 = 1 - y1;
+ y2 = 1 - y2;
+ float minx = 1, miny = 1, maxx = 1, maxy = 1;
+ if(x1 != x2)
+ {
+ minx = (0 - x1) / (x2 - x1);
+ maxx = (1 - x1) / (x2 - x1);
+ }
+ if(y1 != y2)
+ {
+ miny = (0 - y1) / (y2 - y1);
+ maxy = (1 - y1) / (y2 - y1);
+ }
+ float dx = (maxx - minx)/max(s.w-1, 1),
+ dy = (maxy - miny)/max(s.h-1, 1),
+ cury = miny;
+ for(uchar *dstrow = s.data + s.bpp - 1, *endrow = dstrow + s.h*s.pitch; dstrow < endrow; dstrow += s.pitch)
+ {
+ float curx = minx;
+ for(uchar *dst = dstrow, *end = &dstrow[s.w*s.bpp]; dst < end; dst += s.bpp)
+ {
+ dst[0] = uchar(dst[0]*clamp(curx, 0.0f, 1.0f)*clamp(cury, 0.0f, 1.0f));
+ curx += dx;
+ }
+ cury += dy;
+ }
+}
+
+VAR(hwtexsize, 1, 0, 0);
+VAR(hwcubetexsize, 1, 0, 0);
+VAR(hwmaxaniso, 1, 0, 0);
+VARFP(maxtexsize, 0, 0, 1<<12, initwarning("texture quality", INIT_LOAD));
+VARFP(reducefilter, 0, 1, 1, initwarning("texture quality", INIT_LOAD));
+VARFP(texreduce, 0, 0, 12, initwarning("texture quality", INIT_LOAD));
+VARFP(texcompress, 0, 1<<10, 1<<12, initwarning("texture quality", INIT_LOAD));
+VARFP(texcompressquality, -1, -1, 1, setuptexcompress());
+VARFP(trilinear, 0, 1, 1, initwarning("texture filtering", INIT_LOAD));
+VARFP(bilinear, 0, 1, 1, initwarning("texture filtering", INIT_LOAD));
+VARFP(aniso, 0, 0, 16, initwarning("texture filtering", INIT_LOAD));
+
+extern int usetexcompress;
+
+void setuptexcompress()
+{
+ if(!usetexcompress) return;
+
+ GLenum hint = GL_DONT_CARE;
+ switch(texcompressquality)
+ {
+ case 1: hint = GL_NICEST; break;
+ case 0: hint = GL_FASTEST; break;
+ }
+ glHint(GL_TEXTURE_COMPRESSION_HINT, hint);
+}
+
+GLenum compressedformat(GLenum format, int w, int h, int force = 0)
+{
+ if(usetexcompress && texcompress && force >= 0 && (force || max(w, h) >= texcompress)) switch(format)
+ {
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB: return usetexcompress > 1 ? GL_COMPRESSED_RGB_S3TC_DXT1_EXT : GL_COMPRESSED_RGB;
+ case GL_RGB5_A1: return usetexcompress > 1 ? GL_COMPRESSED_RGBA_S3TC_DXT1_EXT : GL_COMPRESSED_RGBA;
+ case GL_RGBA: return usetexcompress > 1 ? GL_COMPRESSED_RGBA_S3TC_DXT5_EXT : GL_COMPRESSED_RGBA;
+ case GL_RED:
+ case GL_R8: return hasRGTC ? (usetexcompress > 1 ? GL_COMPRESSED_RED_RGTC1 : GL_COMPRESSED_RED) : (usetexcompress > 1 ? GL_COMPRESSED_RGB_S3TC_DXT1_EXT : GL_COMPRESSED_RGB);
+ case GL_RG:
+ case GL_RG8: return hasRGTC ? (usetexcompress > 1 ? GL_COMPRESSED_RG_RGTC2 : GL_COMPRESSED_RG) : (usetexcompress > 1 ? GL_COMPRESSED_RGBA_S3TC_DXT5_EXT : GL_COMPRESSED_RGBA);
+ case GL_LUMINANCE:
+ case GL_LUMINANCE8: return hasLATC ? (usetexcompress > 1 ? GL_COMPRESSED_LUMINANCE_LATC1_EXT : GL_COMPRESSED_LUMINANCE) : (usetexcompress > 1 ? GL_COMPRESSED_RGB_S3TC_DXT1_EXT : GL_COMPRESSED_RGB);
+ case GL_LUMINANCE_ALPHA:
+ case GL_LUMINANCE8_ALPHA8: return hasLATC ? (usetexcompress > 1 ? GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT : GL_COMPRESSED_LUMINANCE_ALPHA) : (usetexcompress > 1 ? GL_COMPRESSED_RGBA_S3TC_DXT5_EXT : GL_COMPRESSED_RGBA);
+ }
+ return format;
+}
+
+GLenum uncompressedformat(GLenum format)
+{
+ switch(format)
+ {
+ case GL_COMPRESSED_ALPHA:
+ return GL_ALPHA;
+ case GL_COMPRESSED_LUMINANCE:
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ return GL_LUMINANCE;
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ return GL_LUMINANCE_ALPHA;
+ case GL_COMPRESSED_RED:
+ case GL_COMPRESSED_RED_RGTC1:
+ return GL_RED;
+ case GL_COMPRESSED_RG:
+ case GL_COMPRESSED_RG_RGTC2:
+ return GL_RG;
+ case GL_COMPRESSED_RGB:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ return GL_RGB;
+ case GL_COMPRESSED_RGBA:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ return GL_RGBA;
+ }
+ return GL_FALSE;
+}
+
+int formatsize(GLenum format)
+{
+ switch(format)
+ {
+ case GL_RED:
+ case GL_LUMINANCE:
+ case GL_ALPHA: return 1;
+ case GL_RG:
+ case GL_LUMINANCE_ALPHA: return 2;
+ case GL_RGB: return 3;
+ case GL_RGBA: return 4;
+ default: return 4;
+ }
+}
+
+VARFP(usenp2, 0, 0, 1, initwarning("texture quality", INIT_LOAD));
+
+void resizetexture(int w, int h, bool mipmap, bool canreduce, GLenum target, int compress, int &tw, int &th)
+{
+ int hwlimit = target==GL_TEXTURE_CUBE_MAP ? hwcubetexsize : hwtexsize,
+ sizelimit = mipmap && maxtexsize ? min(maxtexsize, hwlimit) : hwlimit;
+ if(compress > 0 && !usetexcompress)
+ {
+ w = max(w/compress, 1);
+ h = max(h/compress, 1);
+ }
+ if(canreduce && texreduce)
+ {
+ w = max(w>>texreduce, 1);
+ h = max(h>>texreduce, 1);
+ }
+ w = min(w, sizelimit);
+ h = min(h, sizelimit);
+ if(!usenp2 && (w&(w-1) || h&(h-1)))
+ {
+ tw = th = 1;
+ while(tw < w) tw *= 2;
+ while(th < h) th *= 2;
+ if(w < tw - tw/4) tw /= 2;
+ if(h < th - th/4) th /= 2;
+ }
+ else
+ {
+ tw = w;
+ th = h;
+ }
+}
+
+static GLuint mipmapfbo[2] = { 0, 0 };
+
+void cleanupmipmaps()
+{
+ if(mipmapfbo[0]) { glDeleteFramebuffers_(2, mipmapfbo); memset(mipmapfbo, 0, sizeof(mipmapfbo)); }
+}
+
+VARFP(gpumipmap, 0, 0, 1, cleanupmipmaps());
+
+void uploadtexture(int tnum, GLenum target, GLenum internal, int tw, int th, GLenum format, GLenum type, void *pixels, int pw, int ph, int pitch, bool mipmap)
+{
+ int bpp = formatsize(format), row = 0, rowalign = 0;
+ if(!pitch) pitch = pw*bpp;
+ uchar *buf = NULL;
+ if(pw!=tw || ph!=th)
+ {
+ buf = new uchar[tw*th*bpp];
+ scaletexture((uchar *)pixels, pw, ph, bpp, pitch, buf, tw, th);
+ }
+ else if(tw*bpp != pitch)
+ {
+ row = pitch/bpp;
+ rowalign = texalign(pixels, pitch, 1);
+ while(rowalign > 0 && ((row*bpp + rowalign - 1)/rowalign)*rowalign != pitch) rowalign >>= 1;
+ if(!rowalign)
+ {
+ row = 0;
+ buf = new uchar[tw*th*bpp];
+ loopi(th) memcpy(&buf[i*tw*bpp], &((uchar *)pixels)[i*pitch], tw*bpp);
+ }
+ }
+ bool shouldgpumipmap = pixels && mipmap && max(tw, th) > 1 && gpumipmap && hasFBB && !uncompressedformat(internal);
+ for(int level = 0, align = 0, mw = tw, mh = th;; level++)
+ {
+ uchar *src = buf ? buf : (uchar *)pixels;
+ if(buf) pitch = mw*bpp;
+ int srcalign = row > 0 ? rowalign : texalign(src, pitch, 1);
+ if(align != srcalign) glPixelStorei(GL_UNPACK_ALIGNMENT, align = srcalign);
+ if(row > 0) glPixelStorei(GL_UNPACK_ROW_LENGTH, row);
+ glTexImage2D(target, level, internal, mw, mh, 0, format, type, src);
+ if(row > 0) glPixelStorei(GL_UNPACK_ROW_LENGTH, row = 0);
+ if(!mipmap || shouldgpumipmap || max(mw, mh) <= 1) break;
+ int srcw = mw, srch = mh;
+ if(mw > 1) mw /= 2;
+ if(mh > 1) mh /= 2;
+ if(src)
+ {
+ if(!buf) buf = new uchar[mw*mh*bpp];
+ scaletexture(src, srcw, srch, bpp, pitch, buf, mw, mh);
+ }
+ }
+ if(buf) delete[] buf;
+ if(shouldgpumipmap)
+ {
+ GLint fbo = 0;
+ if(!inbetweenframes || drawtex) glGetIntegerv(GL_FRAMEBUFFER_BINDING, &fbo);
+ for(int level = 1, mw = tw, mh = th; max(mw, mh) > 1; level++)
+ {
+ if(mw > 1) mw /= 2;
+ if(mh > 1) mh /= 2;
+ glTexImage2D(target, level, internal, mw, mh, 0, format, type, NULL);
+ }
+ if(!mipmapfbo[0]) glGenFramebuffers_(2, mipmapfbo);
+ glBindFramebuffer_(GL_READ_FRAMEBUFFER, mipmapfbo[0]);
+ glBindFramebuffer_(GL_DRAW_FRAMEBUFFER, mipmapfbo[1]);
+ for(int level = 1, mw = tw, mh = th; max(mw, mh) > 1; level++)
+ {
+ int srcw = mw, srch = mh;
+ if(mw > 1) mw /= 2;
+ if(mh > 1) mh /= 2;
+ glFramebufferTexture2D_(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, target, tnum, level - 1);
+ glFramebufferTexture2D_(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, target, tnum, level);
+ glBlitFramebuffer_(0, 0, srcw, srch, 0, 0, mw, mh, GL_COLOR_BUFFER_BIT, GL_LINEAR);
+ }
+ glFramebufferTexture2D_(GL_READ_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, target, 0, 0);
+ glFramebufferTexture2D_(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, target, 0, 0);
+ glBindFramebuffer_(GL_FRAMEBUFFER, fbo);
+ }
+}
+
+void uploadcompressedtexture(GLenum target, GLenum subtarget, GLenum format, int w, int h, uchar *data, int align, int blocksize, int levels, bool mipmap)
+{
+ int hwlimit = target==GL_TEXTURE_CUBE_MAP ? hwcubetexsize : hwtexsize,
+ sizelimit = levels > 1 && maxtexsize ? min(maxtexsize, hwlimit) : hwlimit;
+ int level = 0;
+ loopi(levels)
+ {
+ int size = ((w + align-1)/align) * ((h + align-1)/align) * blocksize;
+ if(w <= sizelimit && h <= sizelimit)
+ {
+ glCompressedTexImage2D_(subtarget, level, format, w, h, 0, size, data);
+ level++;
+ if(!mipmap) break;
+ }
+ if(max(w, h) <= 1) break;
+ if(w > 1) w /= 2;
+ if(h > 1) h /= 2;
+ data += size;
+ }
+}
+
+GLenum textarget(GLenum subtarget)
+{
+ switch(subtarget)
+ {
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
+ return GL_TEXTURE_CUBE_MAP;
+ }
+ return subtarget;
+}
+
+const GLint *swizzlemask(GLenum format)
+{
+ static const GLint luminance[4] = { GL_RED, GL_RED, GL_RED, GL_ONE };
+ static const GLint luminancealpha[4] = { GL_RED, GL_RED, GL_RED, GL_GREEN };
+ switch(format)
+ {
+ case GL_RED: return luminance;
+ case GL_RG: return luminancealpha;
+ }
+ return NULL;
+}
+
+void setuptexparameters(int tnum, void *pixels, int clamp, int filter, GLenum format, GLenum target, bool swizzle)
+{
+ glBindTexture(target, tnum);
+ glTexParameteri(target, GL_TEXTURE_WRAP_S, clamp&1 ? GL_CLAMP_TO_EDGE : (clamp&0x100 ? GL_MIRRORED_REPEAT : GL_REPEAT));
+ glTexParameteri(target, GL_TEXTURE_WRAP_T, clamp&2 ? GL_CLAMP_TO_EDGE : (clamp&0x200 ? GL_MIRRORED_REPEAT : GL_REPEAT));
+ if(target==GL_TEXTURE_2D && hasAF && min(aniso, hwmaxaniso) > 0 && filter > 1) glTexParameteri(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, min(aniso, hwmaxaniso));
+ glTexParameteri(target, GL_TEXTURE_MAG_FILTER, filter && bilinear ? GL_LINEAR : GL_NEAREST);
+ glTexParameteri(target, GL_TEXTURE_MIN_FILTER,
+ filter > 1 ?
+ (trilinear ?
+ (bilinear ? GL_LINEAR_MIPMAP_LINEAR : GL_NEAREST_MIPMAP_LINEAR) :
+ (bilinear ? GL_LINEAR_MIPMAP_NEAREST : GL_NEAREST_MIPMAP_NEAREST)) :
+ (filter && bilinear ? GL_LINEAR : GL_NEAREST));
+ if(swizzle && hasTRG && hasTSW)
+ {
+ const GLint *mask = swizzlemask(format);
+ if(mask) glTexParameteriv(target, GL_TEXTURE_SWIZZLE_RGBA, mask);
+ }
+}
+
+static GLenum textype(GLenum &component, GLenum &format)
+{
+ GLenum type = GL_UNSIGNED_BYTE;
+ switch(component)
+ {
+ case GL_R16F:
+ case GL_R32F:
+ if(!format) format = GL_RED;
+ type = GL_FLOAT;
+ break;
+
+ case GL_RG16F:
+ case GL_RG32F:
+ if(!format) format = GL_RG;
+ type = GL_FLOAT;
+ break;
+
+ case GL_RGB16F:
+ case GL_RGB32F:
+ if(!format) format = GL_RGB;
+ type = GL_FLOAT;
+ break;
+
+ case GL_RGBA16F:
+ case GL_RGBA32F:
+ if(!format) format = GL_RGBA;
+ type = GL_FLOAT;
+ break;
+
+ case GL_DEPTH_COMPONENT16:
+ case GL_DEPTH_COMPONENT24:
+ case GL_DEPTH_COMPONENT32:
+ if(!format) format = GL_DEPTH_COMPONENT;
+ break;
+
+ case GL_RGB5:
+ case GL_RGB8:
+ case GL_RGB10:
+ case GL_RGB16:
+ case GL_COMPRESSED_RGB:
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ if(!format) format = GL_RGB;
+ break;
+
+ case GL_RGB5_A1:
+ case GL_RGBA8:
+ case GL_RGB10_A2:
+ case GL_RGBA16:
+ case GL_COMPRESSED_RGBA:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ if(!format) format = GL_RGBA;
+ break;
+
+ case GL_DEPTH_STENCIL:
+ case GL_DEPTH24_STENCIL8:
+ if(!format) format = GL_DEPTH_STENCIL;
+ type = GL_UNSIGNED_INT_24_8;
+ break;
+
+ case GL_R8:
+ case GL_R16:
+ case GL_COMPRESSED_RED:
+ case GL_COMPRESSED_RED_RGTC1:
+ if(!format) format = GL_RED;
+ break;
+
+ case GL_RG8:
+ case GL_RG16:
+ case GL_COMPRESSED_RG:
+ case GL_COMPRESSED_RG_RGTC2:
+ if(!format) format = GL_RG;
+ break;
+
+ case GL_LUMINANCE8:
+ case GL_LUMINANCE16:
+ case GL_COMPRESSED_LUMINANCE:
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ if(!format) format = GL_LUMINANCE;
+ break;
+
+ case GL_LUMINANCE8_ALPHA8:
+ case GL_LUMINANCE16_ALPHA16:
+ case GL_COMPRESSED_LUMINANCE_ALPHA:
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ if(!format) format = GL_LUMINANCE_ALPHA;
+ break;
+
+ case GL_ALPHA8:
+ case GL_ALPHA16:
+ case GL_COMPRESSED_ALPHA:
+ if(!format) format = GL_ALPHA;
+ break;
+ }
+ if(!format) format = component;
+ return type;
+}
+
+void createtexture(int tnum, int w, int h, void *pixels, int clamp, int filter, GLenum component, GLenum subtarget, int pw, int ph, int pitch, bool resize, GLenum format, bool swizzle)
+{
+ GLenum target = textarget(subtarget), type = textype(component, format);
+ if(filter >= 0 && clamp >= 0) setuptexparameters(tnum, pixels, clamp, filter, format, target, swizzle);
+ if(!pw) pw = w;
+ if(!ph) ph = h;
+ int tw = w, th = h;
+ bool mipmap = filter > 1 && pixels;
+ if(resize && pixels)
+ {
+ resizetexture(w, h, mipmap, false, target, 0, tw, th);
+ if(mipmap) component = compressedformat(component, tw, th);
+ }
+ uploadtexture(tnum, subtarget, component, tw, th, format, type, pixels, pw, ph, pitch, mipmap);
+}
+
+void createcompressedtexture(int tnum, int w, int h, uchar *data, int align, int blocksize, int levels, int clamp, int filter, GLenum format, GLenum subtarget, bool swizzle = false)
+{
+ GLenum target = textarget(subtarget);
+ if(filter >= 0 && clamp >= 0) setuptexparameters(tnum, data, clamp, filter, format, target);
+ uploadcompressedtexture(target, subtarget, format, w, h, data, align, blocksize, levels, filter > 1);
+}
+
+hashnameset<Texture> textures;
+
+Texture *notexture = NULL; // used as default, ensured to be loaded
+
+static GLenum texformat(int bpp, bool swizzle = false)
+{
+ switch(bpp)
+ {
+ case 1: return hasTRG && (hasTSW || !glcompat || !swizzle) ? GL_RED : GL_LUMINANCE;
+ case 2: return hasTRG && (hasTSW || !glcompat || !swizzle) ? GL_RG : GL_LUMINANCE_ALPHA;
+ case 3: return GL_RGB;
+ case 4: return GL_RGBA;
+ default: return 0;
+ }
+}
+
+static bool alphaformat(GLenum format)
+{
+ switch(format)
+ {
+ case GL_ALPHA:
+ case GL_LUMINANCE_ALPHA:
+ case GL_RG:
+ case GL_RGBA:
+ return true;
+ default:
+ return false;
+ }
+}
+
+int texalign(const void *data, int w, int bpp)
+{
+ int stride = w*bpp;
+ if(stride&1) return 1;
+ if(stride&2) return 2;
+ return 4;
+}
+
+static Texture *newtexture(Texture *t, const char *rname, ImageData &s, int clamp = 0, bool mipit = true, bool canreduce = false, bool transient = false, int compress = 0)
+{
+ if(!t)
+ {
+ char *key = newstring(rname);
+ t = &textures[key];
+ t->name = key;
+ }
+
+ t->clamp = clamp;
+ t->mipmap = mipit;
+ t->type = Texture::IMAGE;
+ if(transient) t->type |= Texture::TRANSIENT;
+ if(clamp&0x300) t->type |= Texture::MIRROR;
+ if(!s.data)
+ {
+ t->type |= Texture::STUB;
+ t->w = t->h = t->xs = t->ys = t->bpp = 0;
+ return t;
+ }
+
+ bool swizzle = !(clamp&0x10000);
+ GLenum format;
+ if(s.compressed)
+ {
+ format = uncompressedformat(s.compressed);
+ t->bpp = formatsize(format);
+ t->type |= Texture::COMPRESSED;
+ }
+ else
+ {
+ format = texformat(s.bpp, swizzle);
+ t->bpp = s.bpp;
+ if(swizzle && hasTRG && !hasTSW && swizzlemask(format))
+ {
+ swizzleimage(s);
+ format = texformat(s.bpp, swizzle);
+ t->bpp = s.bpp;
+ }
+ }
+ if(alphaformat(format)) t->type |= Texture::ALPHA;
+ t->w = t->xs = s.w;
+ t->h = t->ys = s.h;
+
+ int filter = !canreduce || reducefilter ? (mipit ? 2 : 1) : 0;
+ glGenTextures(1, &t->id);
+ if(s.compressed)
+ {
+ uchar *data = s.data;
+ int levels = s.levels, level = 0;
+ if(canreduce && texreduce) loopi(min(texreduce, s.levels-1))
+ {
+ data += s.calclevelsize(level++);
+ levels--;
+ if(t->w > 1) t->w /= 2;
+ if(t->h > 1) t->h /= 2;
+ }
+ int sizelimit = mipit && maxtexsize ? min(maxtexsize, hwtexsize) : hwtexsize;
+ while(t->w > sizelimit || t->h > sizelimit)
+ {
+ data += s.calclevelsize(level++);
+ levels--;
+ if(t->w > 1) t->w /= 2;
+ if(t->h > 1) t->h /= 2;
+ }
+ createcompressedtexture(t->id, t->w, t->h, data, s.align, s.bpp, levels, clamp, filter, s.compressed, GL_TEXTURE_2D, swizzle);
+ }
+ else
+ {
+ resizetexture(t->w, t->h, mipit, canreduce, GL_TEXTURE_2D, compress, t->w, t->h);
+ GLenum component = compressedformat(format, t->w, t->h, compress);
+ createtexture(t->id, t->w, t->h, s.data, clamp, filter, component, GL_TEXTURE_2D, t->xs, t->ys, s.pitch, false, format, swizzle);
+ }
+ return t;
+}
+
+#if SDL_BYTEORDER == SDL_BIG_ENDIAN
+#define RGBAMASKS 0xff000000, 0x00ff0000, 0x0000ff00, 0x000000ff
+#define RGBMASKS 0xff0000, 0x00ff00, 0x0000ff, 0
+#else
+#define RGBAMASKS 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000
+#define RGBMASKS 0x0000ff, 0x00ff00, 0xff0000, 0
+#endif
+
+SDL_Surface *wrapsurface(void *data, int width, int height, int bpp)
+{
+ switch(bpp)
+ {
+ case 3: return SDL_CreateRGBSurfaceFrom(data, width, height, 8*bpp, bpp*width, RGBMASKS);
+ case 4: return SDL_CreateRGBSurfaceFrom(data, width, height, 8*bpp, bpp*width, RGBAMASKS);
+ }
+ return NULL;
+}
+
+SDL_Surface *creatergbsurface(SDL_Surface *os)
+{
+ SDL_Surface *ns = SDL_CreateRGBSurface(SDL_SWSURFACE, os->w, os->h, 24, RGBMASKS);
+ if(ns) SDL_BlitSurface(os, NULL, ns, NULL);
+ SDL_FreeSurface(os);
+ return ns;
+}
+
+SDL_Surface *creatergbasurface(SDL_Surface *os)
+{
+ SDL_Surface *ns = SDL_CreateRGBSurface(SDL_SWSURFACE, os->w, os->h, 32, RGBAMASKS);
+ if(ns)
+ {
+ SDL_SetSurfaceBlendMode(os, SDL_BLENDMODE_NONE);
+ SDL_BlitSurface(os, NULL, ns, NULL);
+ }
+ SDL_FreeSurface(os);
+ return ns;
+}
+
+bool checkgrayscale(SDL_Surface *s)
+{
+ // gray scale images have 256 levels, no colorkey, and the palette is a ramp
+ if(s->format->palette)
+ {
+ if(s->format->palette->ncolors != 256 || SDL_GetColorKey(s, NULL) >= 0) return false;
+ const SDL_Color *colors = s->format->palette->colors;
+ loopi(256) if(colors[i].r != i || colors[i].g != i || colors[i].b != i) return false;
+ }
+ return true;
+}
+
+SDL_Surface *fixsurfaceformat(SDL_Surface *s)
+{
+ if(!s) return NULL;
+ if(!s->pixels || min(s->w, s->h) <= 0 || s->format->BytesPerPixel <= 0)
+ {
+ SDL_FreeSurface(s);
+ return NULL;
+ }
+ static const uint rgbmasks[] = { RGBMASKS }, rgbamasks[] = { RGBAMASKS };
+ switch(s->format->BytesPerPixel)
+ {
+ case 1:
+ if(!checkgrayscale(s)) return SDL_GetColorKey(s, NULL) >= 0 ? creatergbasurface(s) : creatergbsurface(s);
+ break;
+ case 3:
+ if(s->format->Rmask != rgbmasks[0] || s->format->Gmask != rgbmasks[1] || s->format->Bmask != rgbmasks[2])
+ return creatergbsurface(s);
+ break;
+ case 4:
+ if(s->format->Rmask != rgbamasks[0] || s->format->Gmask != rgbamasks[1] || s->format->Bmask != rgbamasks[2] || s->format->Amask != rgbamasks[3])
+ return s->format->Amask ? creatergbasurface(s) : creatergbsurface(s);
+ break;
+ }
+ return s;
+}
+
+void texflip(ImageData &s)
+{
+ ImageData d(s.w, s.h, s.bpp);
+ uchar *dst = d.data, *src = &s.data[s.pitch*s.h];
+ loopi(s.h)
+ {
+ src -= s.pitch;
+ memcpy(dst, src, s.bpp*s.w);
+ dst += d.pitch;
+ }
+ s.replace(d);
+}
+
+void texnormal(ImageData &s, int emphasis)
+{
+ ImageData d(s.w, s.h, 3);
+ uchar *src = s.data, *dst = d.data;
+ loop(y, s.h) loop(x, s.w)
+ {
+ vec normal(0.0f, 0.0f, 255.0f/emphasis);
+ normal.x += src[y*s.pitch + ((x+s.w-1)%s.w)*s.bpp];
+ normal.x -= src[y*s.pitch + ((x+1)%s.w)*s.bpp];
+ normal.y += src[((y+s.h-1)%s.h)*s.pitch + x*s.bpp];
+ normal.y -= src[((y+1)%s.h)*s.pitch + x*s.bpp];
+ normal.normalize();
+ *dst++ = uchar(127.5f + normal.x*127.5f);
+ *dst++ = uchar(127.5f + normal.y*127.5f);
+ *dst++ = uchar(127.5f + normal.z*127.5f);
+ }
+ s.replace(d);
+}
+
+template<int n, int bpp, bool normals>
+static void blurtexture(int w, int h, uchar *dst, const uchar *src, int margin)
+{
+ static const int weights3x3[9] =
+ {
+ 0x10, 0x20, 0x10,
+ 0x20, 0x40, 0x20,
+ 0x10, 0x20, 0x10
+ };
+ static const int weights5x5[25] =
+ {
+ 0x05, 0x05, 0x09, 0x05, 0x05,
+ 0x05, 0x0A, 0x14, 0x0A, 0x05,
+ 0x09, 0x14, 0x28, 0x14, 0x09,
+ 0x05, 0x0A, 0x14, 0x0A, 0x05,
+ 0x05, 0x05, 0x09, 0x05, 0x05
+ };
+ const int *mat = n > 1 ? weights5x5 : weights3x3;
+ int mstride = 2*n + 1,
+ mstartoffset = n*(mstride + 1),
+ stride = bpp*w,
+ startoffset = n*bpp,
+ nextoffset1 = stride + mstride*bpp,
+ nextoffset2 = stride - mstride*bpp;
+ src += margin*(stride + bpp);
+ for(int y = margin; y < h-margin; y++)
+ {
+ for(int x = margin; x < w-margin; x++)
+ {
+ int dr = 0, dg = 0, db = 0;
+ const uchar *p = src - startoffset;
+ const int *m = mat + mstartoffset;
+ for(int t = y; t >= y-n; t--, p -= nextoffset1, m -= mstride)
+ {
+ if(t < 0) p += stride;
+ int a = 0;
+ if(n > 1) { a += m[-2]; if(x >= 2) { dr += p[0] * a; dg += p[1] * a; db += p[2] * a; a = 0; } p += bpp; }
+ a += m[-1]; if(x >= 1) { dr += p[0] * a; dg += p[1] * a; db += p[2] * a; a = 0; } p += bpp;
+ int cr = p[0], cg = p[1], cb = p[2]; a += m[0]; dr += cr * a; dg += cg * a; db += cb * a; p += bpp;
+ if(x+1 < w) { cr = p[0]; cg = p[1]; cb = p[2]; } dr += cr * m[1]; dg += cg * m[1]; db += cb * m[1]; p += bpp;
+ if(n > 1) { if(x+2 < w) { cr = p[0]; cg = p[1]; cb = p[2]; } dr += cr * m[2]; dg += cg * m[2]; db += cb * m[2]; p += bpp; }
+ }
+ p = src - startoffset + stride;
+ m = mat + mstartoffset + mstride;
+ for(int t = y+1; t <= y+n; t++, p += nextoffset2, m += mstride)
+ {
+ if(t >= h) p -= stride;
+ int a = 0;
+ if(n > 1) { a += m[-2]; if(x >= 2) { dr += p[0] * a; dg += p[1] * a; db += p[2] * a; a = 0; } p += bpp; }
+ a += m[-1]; if(x >= 1) { dr += p[0] * a; dg += p[1] * a; db += p[2] * a; a = 0; } p += bpp;
+ int cr = p[0], cg = p[1], cb = p[2]; a += m[0]; dr += cr * a; dg += cg * a; db += cb * a; p += bpp;
+ if(x+1 < w) { cr = p[0]; cg = p[1]; cb = p[2]; } dr += cr * m[1]; dg += cg * m[1]; db += cb * m[1]; p += bpp;
+ if(n > 1) { if(x+2 < w) { cr = p[0]; cg = p[1]; cb = p[2]; } dr += cr * m[2]; dg += cg * m[2]; db += cb * m[2]; p += bpp; }
+ }
+ if(normals)
+ {
+ vec v(dr-0x7F80, dg-0x7F80, db-0x7F80);
+ float mag = 127.5f/v.magnitude();
+ dst[0] = uchar(v.x*mag + 127.5f);
+ dst[1] = uchar(v.y*mag + 127.5f);
+ dst[2] = uchar(v.z*mag + 127.5f);
+ }
+ else
+ {
+ dst[0] = dr>>8;
+ dst[1] = dg>>8;
+ dst[2] = db>>8;
+ }
+ if(bpp > 3) dst[3] = src[3];
+ dst += bpp;
+ src += bpp;
+ }
+ src += 2*margin*bpp;
+ }
+}
+
+void blurtexture(int n, int bpp, int w, int h, uchar *dst, const uchar *src, int margin)
+{
+ switch((clamp(n, 1, 2)<<4) | bpp)
+ {
+ case 0x13: blurtexture<1, 3, false>(w, h, dst, src, margin); break;
+ case 0x23: blurtexture<2, 3, false>(w, h, dst, src, margin); break;
+ case 0x14: blurtexture<1, 4, false>(w, h, dst, src, margin); break;
+ case 0x24: blurtexture<2, 4, false>(w, h, dst, src, margin); break;
+ }
+}
+
+void blurnormals(int n, int w, int h, bvec *dst, const bvec *src, int margin)
+{
+ switch(clamp(n, 1, 2))
+ {
+ case 1: blurtexture<1, 3, true>(w, h, dst->v, src->v, margin); break;
+ case 2: blurtexture<2, 3, true>(w, h, dst->v, src->v, margin); break;
+ }
+}
+
+void texblur(ImageData &s, int n, int r)
+{
+ if(s.bpp < 3) return;
+ loopi(r)
+ {
+ ImageData d(s.w, s.h, s.bpp);
+ blurtexture(n, s.bpp, s.w, s.h, d.data, s.data);
+ s.replace(d);
+ }
+}
+
+void scaleimage(ImageData &s, int w, int h)
+{
+ ImageData d(w, h, s.bpp);
+ scaletexture(s.data, s.w, s.h, s.bpp, s.pitch, d.data, w, h);
+ s.replace(d);
+}
+
+bool canloadsurface(const char *name)
+{
+ stream *f = openfile(name, "rb");
+ if(!f) return false;
+ delete f;
+ return true;
+}
+
+SDL_Surface *loadsurface(const char *name)
+{
+ SDL_Surface *s = NULL;
+ stream *z = openzipfile(name, "rb");
+ if(z)
+ {
+ SDL_RWops *rw = z->rwops();
+ if(rw)
+ {
+ char *ext = (char *)strrchr(name, '.');
+ if(ext) ++ext;
+ s = IMG_LoadTyped_RW(rw, 0, ext);
+ SDL_FreeRW(rw);
+ }
+ delete z;
+ }
+ if(!s) s = IMG_Load(findfile(name, "rb"));
+ return fixsurfaceformat(s);
+}
+
+static vec parsevec(const char *arg)
+{
+ vec v(0, 0, 0);
+ int i = 0;
+ for(; arg[0] && (!i || arg[0]=='/') && i<3; arg += strcspn(arg, "/,><"), i++)
+ {
+ if(i) arg++;
+ v[i] = atof(arg);
+ }
+ if(i==1) v.y = v.z = v.x;
+ return v;
+}
+
+VAR(usedds, 0, 1, 1);
+VAR(dbgdds, 0, 0, 1);
+VAR(scaledds, 0, 2, 4);
+
+static bool texturedata(ImageData &d, const char *tname, Slot::Tex *tex = NULL, bool msg = true, int *compress = NULL, int *wrap = NULL)
+{
+ const char *cmds = NULL, *file = tname;
+
+ if(!tname)
+ {
+ if(!tex) return false;
+ if(tex->name[0]=='<')
+ {
+ cmds = tex->name;
+ file = strrchr(tex->name, '>');
+ if(!file) { if(msg) conoutf(CON_ERROR, "could not load texture packages/%s", tex->name); return false; }
+ file++;
+ }
+ else file = tex->name;
+
+ static string pname;
+ formatstring(pname, "packages/%s", file);
+ file = path(pname);
+ }
+ else if(tname[0]=='<')
+ {
+ cmds = tname;
+ file = strrchr(tname, '>');
+ if(!file) { if(msg) conoutf(CON_ERROR, "could not load texture %s", tname); return false; }
+ file++;
+ }
+
+ int flen = strlen(file);
+ bool raw = !usedds || !compress, dds = false, guess = false;
+ for(const char *pcmds = cmds; pcmds;)
+ {
+ #define PARSETEXCOMMANDS(cmds) \
+ const char *cmd = NULL, *end = NULL, *arg[4] = { NULL, NULL, NULL, NULL }; \
+ cmd = &cmds[1]; \
+ end = strchr(cmd, '>'); \
+ if(!end) break; \
+ cmds = strchr(cmd, '<'); \
+ size_t len = strcspn(cmd, ":,><"); \
+ loopi(4) \
+ { \
+ arg[i] = strchr(i ? arg[i-1] : cmd, i ? ',' : ':'); \
+ if(!arg[i] || arg[i] >= end) arg[i] = ""; \
+ else arg[i]++; \
+ }
+ PARSETEXCOMMANDS(pcmds);
+ if(matchstring(cmd, len, "dds")) dds = true;
+ else if(matchstring(cmd, len, "thumbnail"))
+ {
+ raw = true;
+ guess = flen >= 4 && !strchr(file+flen-4, '.');
+ }
+ else if(matchstring(cmd, len, "stub")) return canloadsurface(file);
+ }
+
+ if(msg) renderprogress(loadprogress, file);
+
+ if(flen >= 4 && (!strcasecmp(file + flen - 4, ".dds") || (dds && !raw)))
+ {
+ string dfile;
+ copystring(dfile, file);
+ memcpy(dfile + flen - 4, ".dds", 4);
+ if(!loaddds(dfile, d, raw ? 1 : (dds ? 0 : -1)) && (!dds || raw))
+ {
+ if(msg) conoutf(CON_ERROR, "could not load texture %s", dfile);
+ return false;
+ }
+ if(d.data && !d.compressed && !dds && compress) *compress = scaledds;
+ }
+
+ if(!d.data)
+ {
+ SDL_Surface *s = NULL;
+ if(guess)
+ {
+ static const char *exts[] = {".jpg", ".png"};
+ string ext;
+ loopi(sizeof(exts)/sizeof(exts[0]))
+ {
+ copystring(ext, file);
+ concatstring(ext, exts[i]);
+ s = loadsurface(ext);
+ if(s) break;
+ }
+ }
+ else s = loadsurface(file);
+ if(!s) { if(msg) conoutf(CON_ERROR, "could not load texture %s", file); return false; }
+ int bpp = s->format->BitsPerPixel;
+ if(bpp%8 || !texformat(bpp/8)) { SDL_FreeSurface(s); conoutf(CON_ERROR, "texture must be 8, 16, 24, or 32 bpp: %s", file); return false; }
+ if(max(s->w, s->h) > (1<<12)) { SDL_FreeSurface(s); conoutf(CON_ERROR, "texture size exceeded %dx%d pixels: %s", 1<<12, 1<<12, file); return false; }
+ d.wrap(s);
+ }
+
+ while(cmds)
+ {
+ PARSETEXCOMMANDS(cmds);
+ if(d.compressed) goto compressed;
+ if(matchstring(cmd, len, "mad")) texmad(d, parsevec(arg[0]), parsevec(arg[1]));
+ else if(matchstring(cmd, len, "colorify")) texcolorify(d, parsevec(arg[0]), parsevec(arg[1]));
+ else if(matchstring(cmd, len, "colormask")) texcolormask(d, parsevec(arg[0]), *arg[1] ? parsevec(arg[1]) : vec(1, 1, 1));
+ else if(matchstring(cmd, len, "normal"))
+ {
+ int emphasis = atoi(arg[0]);
+ texnormal(d, emphasis > 0 ? emphasis : 3);
+ }
+ else if(matchstring(cmd, len, "dup")) texdup(d, atoi(arg[0]), atoi(arg[1]));
+ else if(matchstring(cmd, len, "offset")) texoffset(d, atoi(arg[0]), atoi(arg[1]));
+ else if(matchstring(cmd, len, "rotate")) texrotate(d, atoi(arg[0]), tex ? tex->type : 0);
+ else if(matchstring(cmd, len, "reorient")) texreorient(d, atoi(arg[0])>0, atoi(arg[1])>0, atoi(arg[2])>0, tex ? tex->type : TEX_DIFFUSE);
+ else if(matchstring(cmd, len, "mix")) texmix(d, *arg[0] ? atoi(arg[0]) : -1, *arg[1] ? atoi(arg[1]) : -1, *arg[2] ? atoi(arg[2]) : -1, *arg[3] ? atoi(arg[3]) : -1);
+ else if(matchstring(cmd, len, "grey")) texgrey(d);
+ else if(matchstring(cmd, len, "blur"))
+ {
+ int emphasis = atoi(arg[0]), repeat = atoi(arg[1]);
+ texblur(d, emphasis > 0 ? clamp(emphasis, 1, 2) : 1, repeat > 0 ? repeat : 1);
+ }
+ else if(matchstring(cmd, len, "premul")) texpremul(d);
+ else if(matchstring(cmd, len, "agrad")) texagrad(d, atof(arg[0]), atof(arg[1]), atof(arg[2]), atof(arg[3]));
+ else if(matchstring(cmd, len, "compress") || matchstring(cmd, len, "dds"))
+ {
+ int scale = atoi(arg[0]);
+ if(scale <= 0) scale = scaledds;
+ if(compress) *compress = scale;
+ }
+ else if(matchstring(cmd, len, "nocompress"))
+ {
+ if(compress) *compress = -1;
+ }
+ else if(matchstring(cmd, len, "thumbnail"))
+ {
+ int w = atoi(arg[0]), h = atoi(arg[1]);
+ if(w <= 0 || w > (1<<12)) w = 64;
+ if(h <= 0 || h > (1<<12)) h = w;
+ if(d.w > w || d.h > h) scaleimage(d, w, h);
+ }
+ else
+ compressed:
+ if(matchstring(cmd, len, "mirror"))
+ {
+ if(wrap) *wrap |= 0x300;
+ }
+ else if(matchstring(cmd, len, "noswizzle"))
+ {
+ if(wrap) *wrap |= 0x10000;
+ }
+ }
+
+ return true;
+}
+
+uchar *loadalphamask(Texture *t)
+{
+ if(t->alphamask) return t->alphamask;
+ if(!(t->type&Texture::ALPHA)) return NULL;
+ ImageData s;
+ if(!texturedata(s, t->name, NULL, false) || !s.data || s.compressed) return NULL;
+ t->alphamask = new uchar[s.h * ((s.w+7)/8)];
+ uchar *srcrow = s.data, *dst = t->alphamask-1;
+ loop(y, s.h)
+ {
+ uchar *src = srcrow+s.bpp-1;
+ loop(x, s.w)
+ {
+ int offset = x%8;
+ if(!offset) *++dst = 0;
+ if(*src) *dst |= 1<<offset;
+ src += s.bpp;
+ }
+ srcrow += s.pitch;
+ }
+ return t->alphamask;
+}
+
+Texture *textureload(const char *name, int clamp, bool mipit, bool msg)
+{
+ string tname;
+ copystring(tname, name);
+ Texture *t = textures.access(path(tname));
+ if(t) return t;
+ int compress = 0;
+ ImageData s;
+ if(texturedata(s, tname, NULL, msg, &compress, &clamp)) return newtexture(NULL, tname, s, clamp, mipit, false, false, compress);
+ return notexture;
+}
+
+bool settexture(const char *name, int clamp)
+{
+ Texture *t = textureload(name, clamp, true, false);
+ glBindTexture(GL_TEXTURE_2D, t->id);
+ return t != notexture;
+}
+
+vector<VSlot *> vslots;
+vector<Slot *> slots;
+MSlot materialslots[(MATF_VOLUME|MATF_INDEX)+1];
+Slot dummyslot;
+VSlot dummyvslot(&dummyslot);
+
+void texturereset(int *n)
+{
+ if(!(identflags&IDF_OVERRIDDEN) && !game::allowedittoggle()) return;
+ resetslotshader();
+ int limit = clamp(*n, 0, slots.length());
+ for(int i = limit; i < slots.length(); i++)
+ {
+ Slot *s = slots[i];
+ for(VSlot *vs = s->variants; vs; vs = vs->next) vs->slot = &dummyslot;
+ delete s;
+ }
+ slots.setsize(limit);
+ while(vslots.length())
+ {
+ VSlot *vs = vslots.last();
+ if(vs->slot != &dummyslot || vs->changed) break;
+ delete vslots.pop();
+ }
+}
+
+COMMAND(texturereset, "i");
+
+void materialreset()
+{
+ if(!(identflags&IDF_OVERRIDDEN) && !game::allowedittoggle()) return;
+ loopi((MATF_VOLUME|MATF_INDEX)+1) materialslots[i].reset();
+}
+
+COMMAND(materialreset, "");
+
+static int compactedvslots = 0, compactvslotsprogress = 0, clonedvslots = 0;
+static bool markingvslots = false;
+
+void clearslots()
+{
+ resetslotshader();
+ slots.deletecontents();
+ vslots.deletecontents();
+ loopi((MATF_VOLUME|MATF_INDEX)+1) materialslots[i].reset();
+ clonedvslots = 0;
+}
+
+static void assignvslot(VSlot &vs);
+
+static inline void assignvslotlayer(VSlot &vs)
+{
+ if(vs.layer && vslots.inrange(vs.layer))
+ {
+ VSlot &layer = *vslots[vs.layer];
+ if(layer.index < 0) assignvslot(layer);
+ }
+}
+
+static void assignvslot(VSlot &vs)
+{
+ vs.index = compactedvslots++;
+ assignvslotlayer(vs);
+}
+
+void compactvslot(int &index)
+{
+ if(vslots.inrange(index))
+ {
+ VSlot &vs = *vslots[index];
+ if(vs.index < 0) assignvslot(vs);
+ if(!markingvslots) index = vs.index;
+ }
+}
+
+void compactvslot(VSlot &vs)
+{
+ if(vs.index < 0) assignvslot(vs);
+}
+
+void compactvslots(cube *c, int n)
+{
+ if((compactvslotsprogress++&0xFFF)==0) renderprogress(min(float(compactvslotsprogress)/allocnodes, 1.0f), markingvslots ? "marking slots..." : "compacting slots...");
+ loopi(n)
+ {
+ if(c[i].children) compactvslots(c[i].children);
+ else loopj(6) if(vslots.inrange(c[i].texture[j]))
+ {
+ VSlot &vs = *vslots[c[i].texture[j]];
+ if(vs.index < 0) assignvslot(vs);
+ if(!markingvslots) c[i].texture[j] = vs.index;
+ }
+ }
+}
+
+int compactvslots()
+{
+ clonedvslots = 0;
+ markingvslots = false;
+ compactedvslots = 0;
+ compactvslotsprogress = 0;
+ loopv(vslots) vslots[i]->index = -1;
+ loopv(slots) slots[i]->variants->index = compactedvslots++;
+ loopv(slots) assignvslotlayer(*slots[i]->variants);
+ loopv(vslots)
+ {
+ VSlot &vs = *vslots[i];
+ if(!vs.changed && vs.index < 0) { markingvslots = true; break; }
+ }
+ compactvslots(worldroot);
+ int total = compactedvslots;
+ compacteditvslots();
+ loopv(vslots)
+ {
+ VSlot *vs = vslots[i];
+ if(vs->changed) continue;
+ while(vs->next)
+ {
+ if(vs->next->index < 0) vs->next = vs->next->next;
+ else vs = vs->next;
+ }
+ }
+ if(markingvslots)
+ {
+ markingvslots = false;
+ compactedvslots = 0;
+ compactvslotsprogress = 0;
+ int lastdiscard = 0;
+ loopv(vslots)
+ {
+ VSlot &vs = *vslots[i];
+ if(vs.changed || (vs.index < 0 && !vs.next)) vs.index = -1;
+ else
+ {
+ while(lastdiscard < i)
+ {
+ VSlot &ds = *vslots[lastdiscard++];
+ if(!ds.changed && ds.index < 0) ds.index = compactedvslots++;
+ }
+ vs.index = compactedvslots++;
+ }
+ }
+ compactvslots(worldroot);
+ total = compactedvslots;
+ compacteditvslots();
+ }
+ compactmruvslots();
+ loopv(vslots)
+ {
+ VSlot &vs = *vslots[i];
+ if(vs.index >= 0 && vs.layer && vslots.inrange(vs.layer)) vs.layer = vslots[vs.layer]->index;
+ }
+ loopv(vslots)
+ {
+ while(vslots[i]->index >= 0 && vslots[i]->index != i)
+ swap(vslots[i], vslots[vslots[i]->index]);
+ }
+ for(int i = compactedvslots; i < vslots.length(); i++) delete vslots[i];
+ vslots.setsize(compactedvslots);
+ return total;
+}
+
+ICOMMAND(compactvslots, "", (),
+{
+ extern int nompedit;
+ if(nompedit && multiplayer()) return;
+ compactvslots();
+ allchanged();
+});
+
+static Slot &loadslot(Slot &s, bool forceload);
+
+static void clampvslotoffset(VSlot &dst, Slot *slot = NULL)
+{
+ if(!slot) slot = dst.slot;
+ if(slot && slot->sts.inrange(0))
+ {
+ if(!slot->loaded) loadslot(*slot, false);
+ Texture *t = slot->sts[0].t;
+ int xs = t->xs, ys = t->ys;
+ if(t->type & Texture::MIRROR) { xs *= 2; ys *= 2; }
+ if(texrotations[dst.rotation].swapxy) swap(xs, ys);
+ dst.offset.x %= xs; if(dst.offset.x < 0) dst.offset.x += xs;
+ dst.offset.y %= ys; if(dst.offset.y < 0) dst.offset.y += ys;
+ }
+ else dst.offset.max(0);
+}
+
+static void propagatevslot(VSlot &dst, const VSlot &src, int diff, bool edit = false)
+{
+ if(diff & (1<<VSLOT_SHPARAM)) loopv(src.params) dst.params.add(src.params[i]);
+ if(diff & (1<<VSLOT_SCALE)) dst.scale = src.scale;
+ if(diff & (1<<VSLOT_ROTATION))
+ {
+ dst.rotation = src.rotation;
+ if(edit && !dst.offset.iszero()) clampvslotoffset(dst);
+ }
+ if(diff & (1<<VSLOT_OFFSET))
+ {
+ dst.offset = src.offset;
+ if(edit) clampvslotoffset(dst);
+ }
+ if(diff & (1<<VSLOT_SCROLL)) dst.scroll = src.scroll;
+ if(diff & (1<<VSLOT_LAYER)) dst.layer = src.layer;
+ if(diff & (1<<VSLOT_ALPHA))
+ {
+ dst.alphafront = src.alphafront;
+ dst.alphaback = src.alphaback;
+ }
+ if(diff & (1<<VSLOT_COLOR)) dst.colorscale = src.colorscale;
+}
+
+static void propagatevslot(VSlot *root, int changed)
+{
+ for(VSlot *vs = root->next; vs; vs = vs->next)
+ {
+ int diff = changed & ~vs->changed;
+ if(diff) propagatevslot(*vs, *root, diff);
+ }
+}
+
+static void mergevslot(VSlot &dst, const VSlot &src, int diff, Slot *slot = NULL)
+{
+ if(diff & (1<<VSLOT_SHPARAM)) loopv(src.params)
+ {
+ const SlotShaderParam &sp = src.params[i];
+ loopvj(dst.params)
+ {
+ SlotShaderParam &dp = dst.params[j];
+ if(sp.name == dp.name)
+ {
+ memcpy(dp.val, sp.val, sizeof(dp.val));
+ goto nextparam;
+ }
+ }
+ dst.params.add(sp);
+ nextparam:;
+ }
+ if(diff & (1<<VSLOT_SCALE))
+ {
+ dst.scale = clamp(dst.scale*src.scale, 1/8.0f, 8.0f);
+ }
+ if(diff & (1<<VSLOT_ROTATION))
+ {
+ dst.rotation = clamp(dst.rotation + src.rotation, 0, 7);
+ if(!dst.offset.iszero()) clampvslotoffset(dst, slot);
+ }
+ if(diff & (1<<VSLOT_OFFSET))
+ {
+ dst.offset.add(src.offset);
+ clampvslotoffset(dst, slot);
+ }
+ if(diff & (1<<VSLOT_SCROLL)) dst.scroll.add(src.scroll);
+ if(diff & (1<<VSLOT_LAYER)) dst.layer = src.layer;
+ if(diff & (1<<VSLOT_ALPHA))
+ {
+ dst.alphafront = src.alphafront;
+ dst.alphaback = src.alphaback;
+ }
+ if(diff & (1<<VSLOT_COLOR)) dst.colorscale.mul(src.colorscale);
+}
+
+void mergevslot(VSlot &dst, const VSlot &src, const VSlot &delta)
+{
+ dst.changed = src.changed | delta.changed;
+ propagatevslot(dst, src, (1<<VSLOT_NUM)-1);
+ mergevslot(dst, delta, delta.changed, src.slot);
+}
+
+static VSlot *reassignvslot(Slot &owner, VSlot *vs)
+{
+ owner.variants = vs;
+ while(vs)
+ {
+ vs->slot = &owner;
+ vs->linked = false;
+ vs = vs->next;
+ }
+ return owner.variants;
+}
+
+static VSlot *emptyvslot(Slot &owner)
+{
+ int offset = 0;
+ loopvrev(slots) if(slots[i]->variants) { offset = slots[i]->variants->index + 1; break; }
+ for(int i = offset; i < vslots.length(); i++) if(!vslots[i]->changed) return reassignvslot(owner, vslots[i]);
+ return vslots.add(new VSlot(&owner, vslots.length()));
+}
+
+static bool comparevslot(const VSlot &dst, const VSlot &src, int diff)
+{
+ if(diff & (1<<VSLOT_SHPARAM))
+ {
+ if(src.params.length() != dst.params.length()) return false;
+ loopv(src.params)
+ {
+ const SlotShaderParam &sp = src.params[i], &dp = dst.params[i];
+ if(sp.name != dp.name || memcmp(sp.val, dp.val, sizeof(sp.val))) return false;
+ }
+ }
+ if(diff & (1<<VSLOT_SCALE) && dst.scale != src.scale) return false;
+ if(diff & (1<<VSLOT_ROTATION) && dst.rotation != src.rotation) return false;
+ if(diff & (1<<VSLOT_OFFSET) && dst.offset != src.offset) return false;
+ if(diff & (1<<VSLOT_SCROLL) && dst.scroll != src.scroll) return false;
+ if(diff & (1<<VSLOT_LAYER) && dst.layer != src.layer) return false;
+ if(diff & (1<<VSLOT_ALPHA) && (dst.alphafront != src.alphafront || dst.alphaback != src.alphaback)) return false;
+ if(diff & (1<<VSLOT_COLOR) && dst.colorscale != src.colorscale) return false;
+ return true;
+}
+
+void packvslot(vector<uchar> &buf, const VSlot &src)
+{
+ if(src.changed & (1<<VSLOT_SHPARAM))
+ {
+ loopv(src.params)
+ {
+ const SlotShaderParam &p = src.params[i];
+ buf.put(VSLOT_SHPARAM);
+ sendstring(p.name, buf);
+ loopj(4) putfloat(buf, p.val[j]);
+ }
+ }
+ if(src.changed & (1<<VSLOT_SCALE))
+ {
+ buf.put(VSLOT_SCALE);
+ putfloat(buf, src.scale);
+ }
+ if(src.changed & (1<<VSLOT_ROTATION))
+ {
+ buf.put(VSLOT_ROTATION);
+ putint(buf, src.rotation);
+ }
+ if(src.changed & (1<<VSLOT_OFFSET))
+ {
+ buf.put(VSLOT_OFFSET);
+ putint(buf, src.offset.x);
+ putint(buf, src.offset.y);
+ }
+ if(src.changed & (1<<VSLOT_SCROLL))
+ {
+ buf.put(VSLOT_SCROLL);
+ putfloat(buf, src.scroll.x);
+ putfloat(buf, src.scroll.y);
+ }
+ if(src.changed & (1<<VSLOT_LAYER))
+ {
+ buf.put(VSLOT_LAYER);
+ putuint(buf, vslots.inrange(src.layer) && !vslots[src.layer]->changed ? src.layer : 0);
+ }
+ if(src.changed & (1<<VSLOT_ALPHA))
+ {
+ buf.put(VSLOT_ALPHA);
+ putfloat(buf, src.alphafront);
+ putfloat(buf, src.alphaback);
+ }
+ if(src.changed & (1<<VSLOT_COLOR))
+ {
+ buf.put(VSLOT_COLOR);
+ putfloat(buf, src.colorscale.r);
+ putfloat(buf, src.colorscale.g);
+ putfloat(buf, src.colorscale.b);
+ }
+ buf.put(0xFF);
+}
+
+void packvslot(vector<uchar> &buf, int index)
+{
+ if(vslots.inrange(index)) packvslot(buf, *vslots[index]);
+ else buf.put(0xFF);
+}
+
+void packvslot(vector<uchar> &buf, const VSlot *vs)
+{
+ if(vs) packvslot(buf, *vs);
+ else buf.put(0xFF);
+}
+
+bool unpackvslot(ucharbuf &buf, VSlot &dst, bool delta)
+{
+ while(buf.remaining())
+ {
+ int changed = buf.get();
+ if(changed >= 0x80) break;
+ switch(changed)
+ {
+ case VSLOT_SHPARAM:
+ {
+ string name;
+ getstring(name, buf);
+ SlotShaderParam p = { name[0] ? getshaderparamname(name) : NULL, -1, { 0, 0, 0, 0 } };
+ loopi(4) p.val[i] = getfloat(buf);
+ if(p.name) dst.params.add(p);
+ break;
+ }
+ case VSLOT_SCALE:
+ dst.scale = getfloat(buf);
+ if(dst.scale <= 0) dst.scale = 1;
+ else if(!delta) dst.scale = clamp(dst.scale, 1/8.0f, 8.0f);
+ break;
+ case VSLOT_ROTATION:
+ dst.rotation = getint(buf);
+ if(!delta) dst.rotation = clamp(dst.rotation, 0, 7);
+ break;
+ case VSLOT_OFFSET:
+ dst.offset.x = getint(buf);
+ dst.offset.y = getint(buf);
+ if(!delta) dst.offset.max(0);
+ break;
+ case VSLOT_SCROLL:
+ dst.scroll.x = getfloat(buf);
+ dst.scroll.y = getfloat(buf);
+ break;
+ case VSLOT_LAYER:
+ {
+ int tex = getuint(buf);
+ dst.layer = vslots.inrange(tex) ? tex : 0;
+ break;
+ }
+ case VSLOT_ALPHA:
+ dst.alphafront = clamp(getfloat(buf), 0.0f, 1.0f);
+ dst.alphaback = clamp(getfloat(buf), 0.0f, 1.0f);
+ break;
+ case VSLOT_COLOR:
+ dst.colorscale.r = clamp(getfloat(buf), 0.0f, 2.0f);
+ dst.colorscale.g = clamp(getfloat(buf), 0.0f, 2.0f);
+ dst.colorscale.b = clamp(getfloat(buf), 0.0f, 2.0f);
+ break;
+ default:
+ return false;
+ }
+ dst.changed |= 1<<changed;
+ }
+ if(buf.overread()) return false;
+ return true;
+}
+
+VSlot *findvslot(Slot &slot, const VSlot &src, const VSlot &delta)
+{
+ for(VSlot *dst = slot.variants; dst; dst = dst->next)
+ {
+ if((!dst->changed || dst->changed == (src.changed | delta.changed)) &&
+ comparevslot(*dst, src, src.changed & ~delta.changed) &&
+ comparevslot(*dst, delta, delta.changed))
+ return dst;
+ }
+ return NULL;
+}
+
+static VSlot *clonevslot(const VSlot &src, const VSlot &delta)
+{
+ VSlot *dst = vslots.add(new VSlot(src.slot, vslots.length()));
+ dst->changed = src.changed | delta.changed;
+ propagatevslot(*dst, src, ((1<<VSLOT_NUM)-1) & ~delta.changed);
+ propagatevslot(*dst, delta, delta.changed, true);
+ return dst;
+}
+
+VARP(autocompactvslots, 0, 256, 0x10000);
+
+VSlot *editvslot(const VSlot &src, const VSlot &delta)
+{
+ VSlot *exists = findvslot(*src.slot, src, delta);
+ if(exists) return exists;
+ if(vslots.length()>=0x10000)
+ {
+ compactvslots();
+ allchanged();
+ if(vslots.length()>=0x10000) return NULL;
+ }
+ if(autocompactvslots && ++clonedvslots >= autocompactvslots)
+ {
+ compactvslots();
+ allchanged();
+ }
+ return clonevslot(src, delta);
+}
+
+static void fixinsidefaces(cube *c, const ivec &o, int size, int tex)
+{
+ loopi(8)
+ {
+ ivec co(i, o, size);
+ if(c[i].children) fixinsidefaces(c[i].children, co, size>>1, tex);
+ else loopj(6) if(!visibletris(c[i], j, co, size))
+ c[i].texture[j] = tex;
+ }
+}
+
+ICOMMAND(fixinsidefaces, "i", (int *tex),
+{
+ extern int nompedit;
+ if(noedit(true) || (nompedit && multiplayer())) return;
+ fixinsidefaces(worldroot, ivec(0, 0, 0), worldsize>>1, *tex && vslots.inrange(*tex) ? *tex : DEFAULT_GEOM);
+ allchanged();
+});
+
+const struct slottex
+{
+ const char *name;
+ int id;
+} slottexs[] =
+{
+ {"c", TEX_DIFFUSE},
+ {"u", TEX_UNKNOWN},
+ {"d", TEX_DECAL},
+ {"n", TEX_NORMAL},
+ {"g", TEX_GLOW},
+ {"s", TEX_SPEC},
+ {"z", TEX_DEPTH},
+ {"a", TEX_ALPHA},
+ {"e", TEX_ENVMAP}
+};
+
+int findslottex(const char *name)
+{
+ loopi(sizeof(slottexs)/sizeof(slottex))
+ {
+ if(!strcmp(slottexs[i].name, name)) return slottexs[i].id;
+ }
+ return -1;
+}
+
+void texture(char *type, char *name, int *rot, int *xoffset, int *yoffset, float *scale)
+{
+ if(slots.length()>=0x10000) return;
+ static int lastmatslot = -1;
+ int tnum = findslottex(type), matslot = findmaterial(type);
+ if(tnum<0) tnum = atoi(type);
+ if(tnum==TEX_DIFFUSE) lastmatslot = matslot;
+ else if(lastmatslot>=0) matslot = lastmatslot;
+ else if(slots.empty()) return;
+ Slot &s = matslot>=0 ? materialslots[matslot] : *(tnum!=TEX_DIFFUSE ? slots.last() : slots.add(new Slot(slots.length())));
+ s.loaded = false;
+ s.texmask |= 1<<tnum;
+ if(s.sts.length()>=8) conoutf(CON_WARN, "warning: too many textures in slot %d", slots.length()-1);
+ Slot::Tex &st = s.sts.add();
+ st.type = tnum;
+ st.combined = -1;
+ st.t = NULL;
+ copystring(st.name, name);
+ path(st.name);
+ if(tnum==TEX_DIFFUSE)
+ {
+ setslotshader(s);
+ VSlot &vs = matslot >= 0 ? materialslots[matslot] : *emptyvslot(s);
+ vs.reset();
+ vs.rotation = clamp(*rot, 0, 7);
+ vs.offset = ivec2(*xoffset, *yoffset).max(0);
+ vs.scale = *scale <= 0 ? 1 : *scale;
+ propagatevslot(&vs, (1<<VSLOT_NUM)-1);
+ }
+}
+
+COMMAND(texture, "ssiiif");
+
+void autograss(char *name)
+{
+ if(slots.empty()) return;
+ Slot &s = *slots.last();
+ DELETEA(s.autograss);
+ s.autograss = name[0] ? newstring(makerelpath("packages", name, NULL, "<premul>")) : NULL;
+}
+COMMAND(autograss, "s");
+
+void texscroll(float *scrollS, float *scrollT)
+{
+ if(slots.empty()) return;
+ Slot &s = *slots.last();
+ s.variants->scroll = vec2(*scrollS, *scrollT).div(1000.0f);
+ propagatevslot(s.variants, 1<<VSLOT_SCROLL);
+}
+COMMAND(texscroll, "ff");
+
+void texoffset_(int *xoffset, int *yoffset)
+{
+ if(slots.empty()) return;
+ Slot &s = *slots.last();
+ s.variants->offset = ivec2(*xoffset, *yoffset).max(0);
+ propagatevslot(s.variants, 1<<VSLOT_OFFSET);
+}
+COMMANDN(texoffset, texoffset_, "ii");
+
+void texrotate_(int *rot)
+{
+ if(slots.empty()) return;
+ Slot &s = *slots.last();
+ s.variants->rotation = clamp(*rot, 0, 7);
+ propagatevslot(s.variants, 1<<VSLOT_ROTATION);
+}
+COMMANDN(texrotate, texrotate_, "i");
+
+void texscale(float *scale)
+{
+ if(slots.empty()) return;
+ Slot &s = *slots.last();
+ s.variants->scale = *scale <= 0 ? 1 : *scale;
+ propagatevslot(s.variants, 1<<VSLOT_SCALE);
+}
+COMMAND(texscale, "f");
+
+void texlayer(int *layer, char *name, int *mode, float *scale)
+{
+ if(slots.empty()) return;
+ Slot &s = *slots.last();
+ s.variants->layer = *layer < 0 ? max(slots.length()-1+*layer, 0) : *layer;
+ s.layermaskname = name[0] ? newstring(path(makerelpath("packages", name))) : NULL;
+ s.layermaskmode = *mode;
+ s.layermaskscale = *scale <= 0 ? 1 : *scale;
+ propagatevslot(s.variants, 1<<VSLOT_LAYER);
+}
+COMMAND(texlayer, "isif");
+
+void texalpha(float *front, float *back)
+{
+ if(slots.empty()) return;
+ Slot &s = *slots.last();
+ s.variants->alphafront = clamp(*front, 0.0f, 1.0f);
+ s.variants->alphaback = clamp(*back, 0.0f, 1.0f);
+ propagatevslot(s.variants, 1<<VSLOT_ALPHA);
+}
+COMMAND(texalpha, "ff");
+
+void texcolor(float *r, float *g, float *b)
+{
+ if(slots.empty()) return;
+ Slot &s = *slots.last();
+ s.variants->colorscale = vec(clamp(*r, 0.0f, 1.0f), clamp(*g, 0.0f, 1.0f), clamp(*b, 0.0f, 1.0f));
+ propagatevslot(s.variants, 1<<VSLOT_COLOR);
+}
+COMMAND(texcolor, "fff");
+
+static int findtextype(Slot &s, int type, int last = -1)
+{
+ for(int i = last+1; i<s.sts.length(); i++) if((type&(1<<s.sts[i].type)) && s.sts[i].combined<0) return i;
+ return -1;
+}
+
+static void addglow(ImageData &c, ImageData &g, const vec &glowcolor)
+{
+ if(g.bpp < 3)
+ {
+ readwritergbtex(c, g,
+ loopk(3) dst[k] = clamp(int(dst[k]) + int(src[0]*glowcolor[k]), 0, 255);
+ );
+ }
+ else
+ {
+ readwritergbtex(c, g,
+ loopk(3) dst[k] = clamp(int(dst[k]) + int(src[k]*glowcolor[k]), 0, 255);
+ );
+ }
+}
+
+static void mergespec(ImageData &c, ImageData &s)
+{
+ if(s.bpp < 3)
+ {
+ readwritergbatex(c, s,
+ dst[3] = src[0];
+ );
+ }
+ else
+ {
+ readwritergbatex(c, s,
+ dst[3] = (int(src[0]) + int(src[1]) + int(src[2]))/3;
+ );
+ }
+}
+
+static void mergedepth(ImageData &c, ImageData &z)
+{
+ readwritergbatex(c, z,
+ dst[3] = src[0];
+ );
+}
+
+static void mergealpha(ImageData &c, ImageData &s)
+{
+ if(s.bpp < 3)
+ {
+ readwritergbatex(c, s,
+ dst[3] = src[0];
+ );
+ }
+ else if(s.bpp == 3)
+ {
+ readwritergbatex(c, s,
+ dst[3] = (int(src[0]) + int(src[1]) + int(src[2]))/3;
+ );
+ }
+ else
+ {
+ readwritergbatex(c, s,
+ dst[3] = src[3];
+ );
+ }
+}
+
+static void addname(vector<char> &key, Slot &slot, Slot::Tex &t, bool combined = false, const char *prefix = NULL)
+{
+ if(combined) key.add('&');
+ if(prefix) { while(*prefix) key.add(*prefix++); }
+ defformatstring(tname, "packages/%s", t.name);
+ for(const char *s = path(tname); *s; key.add(*s++));
+}
+
+static void texcombine(Slot &s, int index, Slot::Tex &t, bool forceload = false)
+{
+ vector<char> key;
+ addname(key, s, t);
+ int texmask = 0;
+ if(!forceload) switch(t.type)
+ {
+ case TEX_DIFFUSE:
+ case TEX_NORMAL:
+ {
+ int i = findtextype(s, t.type==TEX_DIFFUSE ? (s.texmask&(1<<TEX_SPEC) ? 1<<TEX_SPEC : 1<<TEX_ALPHA) : (s.texmask&(1<<TEX_DEPTH) ? 1<<TEX_DEPTH : 1<<TEX_ALPHA));
+ if(i<0) break;
+ texmask |= 1<<s.sts[i].type;
+ s.sts[i].combined = index;
+ addname(key, s, s.sts[i], true);
+ break;
+ }
+ }
+ key.add('\0');
+ t.t = textures.access(key.getbuf());
+ if(t.t) return;
+ int compress = 0, wrap = 0;
+ ImageData ts;
+ if(!texturedata(ts, NULL, &t, true, &compress, &wrap)) { t.t = notexture; return; }
+ if(!ts.compressed) switch(t.type)
+ {
+ case TEX_DIFFUSE:
+ case TEX_NORMAL:
+ loopv(s.sts)
+ {
+ Slot::Tex &a = s.sts[i];
+ if(a.combined!=index) continue;
+ ImageData as;
+ if(!texturedata(as, NULL, &a)) continue;
+ //if(ts.bpp!=4) forcergbaimage(ts);
+ if(as.w!=ts.w || as.h!=ts.h) scaleimage(as, ts.w, ts.h);
+ switch(a.type)
+ {
+ case TEX_SPEC: mergespec(ts, as); break;
+ case TEX_DEPTH: mergedepth(ts, as); break;
+ case TEX_ALPHA: mergealpha(ts, as); break;
+ }
+ break; // only one combination
+ }
+ break;
+ }
+ t.t = newtexture(NULL, key.getbuf(), ts, wrap, true, true, true, compress);
+}
+
+static Slot &loadslot(Slot &s, bool forceload)
+{
+ linkslotshader(s);
+ loopv(s.sts)
+ {
+ Slot::Tex &t = s.sts[i];
+ if(t.combined >= 0) continue;
+ switch(t.type)
+ {
+ case TEX_ENVMAP:
+ t.t = cubemapload(t.name);
+ break;
+
+ default:
+ texcombine(s, i, t, forceload);
+ break;
+ }
+ }
+ s.loaded = true;
+ return s;
+}
+
+MSlot &lookupmaterialslot(int index, bool load)
+{
+ if(materialslots[index].sts.empty() && index&MATF_INDEX) index &= ~MATF_INDEX;
+ MSlot &s = materialslots[index];
+ if(load && !s.linked)
+ {
+ if(!s.loaded) loadslot(s, true);
+ linkvslotshader(s);
+ s.linked = true;
+ }
+ return s;
+}
+
+Slot &lookupslot(int index, bool load)
+{
+ Slot &s = slots.inrange(index) ? *slots[index] : (slots.inrange(DEFAULT_GEOM) ? *slots[DEFAULT_GEOM] : dummyslot);
+ return s.loaded || !load ? s : loadslot(s, false);
+}
+
+VSlot &lookupvslot(int index, bool load)
+{
+ VSlot &s = vslots.inrange(index) && vslots[index]->slot ? *vslots[index] : (slots.inrange(DEFAULT_GEOM) && slots[DEFAULT_GEOM]->variants ? *slots[DEFAULT_GEOM]->variants : dummyvslot);
+ if(load && !s.linked)
+ {
+ if(!s.slot->loaded) loadslot(*s.slot, false);
+ linkvslotshader(s);
+ s.linked = true;
+ }
+ return s;
+}
+
+void linkslotshaders()
+{
+ loopv(slots) if(slots[i]->loaded) linkslotshader(*slots[i]);
+ loopv(vslots) if(vslots[i]->linked) linkvslotshader(*vslots[i]);
+ loopi((MATF_VOLUME|MATF_INDEX)+1) if(materialslots[i].loaded)
+ {
+ linkslotshader(materialslots[i]);
+ linkvslotshader(materialslots[i]);
+ }
+}
+
+Texture *loadthumbnail(Slot &slot)
+{
+ if(slot.thumbnail) return slot.thumbnail;
+ if(!slot.variants)
+ {
+ slot.thumbnail = notexture;
+ return slot.thumbnail;
+ }
+ VSlot &vslot = *slot.variants;
+ linkslotshader(slot, false);
+ linkvslotshader(vslot, false);
+ vector<char> name;
+ if(vslot.colorscale == vec(1, 1, 1)) addname(name, slot, slot.sts[0], false, "<thumbnail>");
+ else
+ {
+ defformatstring(prefix, "<thumbnail:%.2f/%.2f/%.2f>", vslot.colorscale.x, vslot.colorscale.y, vslot.colorscale.z);
+ addname(name, slot, slot.sts[0], false, prefix);
+ }
+ int glow = -1;
+ if(slot.texmask&(1<<TEX_GLOW))
+ {
+ loopvj(slot.sts) if(slot.sts[j].type==TEX_GLOW) { glow = j; break; }
+ if(glow >= 0)
+ {
+ defformatstring(prefix, "<glow:%.2f/%.2f/%.2f>", vslot.glowcolor.x, vslot.glowcolor.y, vslot.glowcolor.z);
+ addname(name, slot, slot.sts[glow], true, prefix);
+ }
+ }
+ VSlot *layer = vslot.layer ? &lookupvslot(vslot.layer, false) : NULL;
+ if(layer)
+ {
+ if(layer->colorscale == vec(1, 1, 1)) addname(name, *layer->slot, layer->slot->sts[0], true, "<layer>");
+ else
+ {
+ defformatstring(prefix, "<layer:%.2f/%.2f/%.2f>", vslot.colorscale.x, vslot.colorscale.y, vslot.colorscale.z);
+ addname(name, *layer->slot, layer->slot->sts[0], true, prefix);
+ }
+ }
+ name.add('\0');
+ Texture *t = textures.access(path(name.getbuf()));
+ if(t) slot.thumbnail = t;
+ else
+ {
+ ImageData s, g, l;
+ texturedata(s, NULL, &slot.sts[0], false);
+ if(glow >= 0) texturedata(g, NULL, &slot.sts[glow], false);
+ if(layer) texturedata(l, NULL, &layer->slot->sts[0], false);
+ if(!s.data) t = slot.thumbnail = notexture;
+ else
+ {
+ if(vslot.colorscale != vec(1, 1, 1)) texmad(s, vslot.colorscale, vec(0, 0, 0));
+ int xs = s.w, ys = s.h;
+ if(s.w > 64 || s.h > 64) scaleimage(s, min(s.w, 64), min(s.h, 64));
+ if(g.data)
+ {
+ if(g.w != s.w || g.h != s.h) scaleimage(g, s.w, s.h);
+ addglow(s, g, vslot.glowcolor);
+ }
+ if(l.data)
+ {
+ if(layer->colorscale != vec(1, 1, 1)) texmad(l, layer->colorscale, vec(0, 0, 0));
+ if(l.w != s.w/2 || l.h != s.h/2) scaleimage(l, s.w/2, s.h/2);
+ forcergbimage(s);
+ forcergbimage(l);
+ uchar *dstrow = &s.data[s.pitch*l.h + s.bpp*l.w], *srcrow = l.data;
+ loop(y, l.h)
+ {
+ for(uchar *dst = dstrow, *src = srcrow, *end = &srcrow[l.w*l.bpp]; src < end; dst += s.bpp, src += l.bpp)
+ loopk(3) dst[k] = src[k];
+ dstrow += s.pitch;
+ srcrow += l.pitch;
+ }
+ }
+ if(s.bpp < 3) forcergbimage(s);
+ t = newtexture(NULL, name.getbuf(), s, 0, false, false, true);
+ t->xs = xs;
+ t->ys = ys;
+ slot.thumbnail = t;
+ }
+ }
+ return t;
+}
+
+void loadlayermasks()
+{
+ loopv(slots)
+ {
+ Slot &slot = *slots[i];
+ if(slot.loaded && slot.layermaskname && !slot.layermask)
+ {
+ slot.layermask = new ImageData;
+ texturedata(*slot.layermask, slot.layermaskname);
+ if(!slot.layermask->data) DELETEP(slot.layermask);
+ }
+ }
+}
+
+// environment mapped reflections
+
+void forcecubemapload(GLuint tex)
+{
+ extern int ati_cubemap_bug;
+ if(!ati_cubemap_bug || !tex) return;
+
+ SETSHADER(cubemap);
+ GLenum depthtest = glIsEnabled(GL_DEPTH_TEST), blend = glIsEnabled(GL_BLEND);
+ if(depthtest) glDisable(GL_DEPTH_TEST);
+ glBindTexture(GL_TEXTURE_CUBE_MAP, tex);
+ if(!blend) glEnable(GL_BLEND);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+ gle::defvertex(2);
+ gle::deftexcoord0(3);
+ gle::defcolor(4);
+ gle::begin(GL_LINES);
+ loopi(2)
+ {
+ gle::attribf(i*1e-3f, 0);
+ gle::attribf(0, 0, 1);
+ gle::attribf(1, 1, 1, 0);
+ }
+ gle::end();
+ if(!blend) glDisable(GL_BLEND);
+ if(depthtest) glEnable(GL_DEPTH_TEST);
+}
+
+extern const cubemapside cubemapsides[6] =
+{
+ { GL_TEXTURE_CUBE_MAP_NEGATIVE_X, "lf", true, true, true },
+ { GL_TEXTURE_CUBE_MAP_POSITIVE_X, "rt", false, false, true },
+ { GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, "ft", true, false, false },
+ { GL_TEXTURE_CUBE_MAP_POSITIVE_Y, "bk", false, true, false },
+ { GL_TEXTURE_CUBE_MAP_NEGATIVE_Z, "dn", false, false, true },
+ { GL_TEXTURE_CUBE_MAP_POSITIVE_Z, "up", false, false, true },
+};
+
+VARFP(envmapsize, 4, 7, 10, setupmaterials());
+
+Texture *cubemaploadwildcard(Texture *t, const char *name, bool mipit, bool msg, bool transient = false)
+{
+ string tname;
+ if(!name) copystring(tname, t->name);
+ else
+ {
+ copystring(tname, name);
+ t = textures.access(path(tname));
+ if(t)
+ {
+ if(!transient && t->type&Texture::TRANSIENT) t->type &= ~Texture::TRANSIENT;
+ return t;
+ }
+ }
+ char *wildcard = strchr(tname, '*');
+ ImageData surface[6];
+ string sname;
+ if(!wildcard) copystring(sname, tname);
+ int tsize = 0, compress = 0;
+ loopi(6)
+ {
+ if(wildcard)
+ {
+ copystring(sname, stringslice(tname, wildcard));
+ concatstring(sname, cubemapsides[i].name);
+ concatstring(sname, wildcard+1);
+ }
+ ImageData &s = surface[i];
+ texturedata(s, sname, NULL, msg, &compress);
+ if(!s.data) return NULL;
+ if(s.w != s.h)
+ {
+ if(msg) conoutf(CON_ERROR, "cubemap texture %s does not have square size", sname);
+ return NULL;
+ }
+ if(s.compressed ? s.compressed!=surface[0].compressed || s.w!=surface[0].w || s.h!=surface[0].h || s.levels!=surface[0].levels : surface[0].compressed || s.bpp!=surface[0].bpp)
+ {
+ if(msg) conoutf(CON_ERROR, "cubemap texture %s doesn't match other sides' format", sname);
+ return NULL;
+ }
+ tsize = max(tsize, max(s.w, s.h));
+ }
+ if(name)
+ {
+ char *key = newstring(tname);
+ t = &textures[key];
+ t->name = key;
+ }
+ t->type = Texture::CUBEMAP;
+ if(transient) t->type |= Texture::TRANSIENT;
+ GLenum format;
+ if(surface[0].compressed)
+ {
+ format = uncompressedformat(surface[0].compressed);
+ t->bpp = formatsize(format);
+ t->type |= Texture::COMPRESSED;
+ }
+ else
+ {
+ format = texformat(surface[0].bpp, true);
+ t->bpp = surface[0].bpp;
+ if(hasTRG && !hasTSW && swizzlemask(format))
+ {
+ loopi(6) swizzleimage(surface[i]);
+ format = texformat(surface[0].bpp, true);
+ t->bpp = surface[0].bpp;
+ }
+ }
+ if(alphaformat(format)) t->type |= Texture::ALPHA;
+ t->mipmap = mipit;
+ t->clamp = 3;
+ t->xs = t->ys = tsize;
+ t->w = t->h = min(1<<envmapsize, tsize);
+ resizetexture(t->w, t->h, mipit, false, GL_TEXTURE_CUBE_MAP, compress, t->w, t->h);
+ GLenum component = format;
+ if(!surface[0].compressed)
+ {
+ component = compressedformat(format, t->w, t->h, compress);
+ switch(component)
+ {
+ case GL_RGB: component = GL_RGB5; break;
+ }
+ }
+ glGenTextures(1, &t->id);
+ loopi(6)
+ {
+ ImageData &s = surface[i];
+ const cubemapside &side = cubemapsides[i];
+ texreorient(s, side.flipx, side.flipy, side.swapxy);
+ if(s.compressed)
+ {
+ int w = s.w, h = s.h, levels = s.levels, level = 0;
+ uchar *data = s.data;
+ while(levels > 1 && (w > t->w || h > t->h))
+ {
+ data += s.calclevelsize(level++);
+ levels--;
+ if(w > 1) w /= 2;
+ if(h > 1) h /= 2;
+ }
+ createcompressedtexture(t->id, w, h, data, s.align, s.bpp, levels, i ? -1 : 3, mipit ? 2 : 1, s.compressed, side.target, true);
+ }
+ else
+ {
+ createtexture(t->id, t->w, t->h, s.data, i ? -1 : 3, mipit ? 2 : 1, component, side.target, s.w, s.h, s.pitch, false, format, true);
+ }
+ }
+ forcecubemapload(t->id);
+ return t;
+}
+
+Texture *cubemapload(const char *name, bool mipit, bool msg, bool transient)
+{
+ string pname;
+ copystring(pname, makerelpath("packages", name));
+ path(pname);
+ Texture *t = NULL;
+ if(!strchr(pname, '*'))
+ {
+ defformatstring(jpgname, "%s_*.jpg", pname);
+ t = cubemaploadwildcard(NULL, jpgname, mipit, false, transient);
+ if(!t)
+ {
+ defformatstring(pngname, "%s_*.png", pname);
+ t = cubemaploadwildcard(NULL, pngname, mipit, false, transient);
+ if(!t && msg) conoutf(CON_ERROR, "could not load envmap %s", name);
+ }
+ }
+ else t = cubemaploadwildcard(NULL, pname, mipit, msg, transient);
+ return t;
+}
+
+VARR(envmapradius, 0, 128, 10000);
+VARR(envmapbb, 0, 0, 1);
+
+struct envmap
+{
+ int radius, size, blur;
+ vec o;
+ GLuint tex;
+
+ envmap() : radius(-1), size(0), blur(0), o(0, 0, 0), tex(0) {}
+
+ void clear()
+ {
+ if(tex) { glDeleteTextures(1, &tex); tex = 0; }
+ }
+};
+
+static vector<envmap> envmaps;
+static Texture *skyenvmap = NULL;
+
+void clearenvmaps()
+{
+ if(skyenvmap)
+ {
+ if(skyenvmap->type&Texture::TRANSIENT) cleanuptexture(skyenvmap);
+ skyenvmap = NULL;
+ }
+ loopv(envmaps) envmaps[i].clear();
+ envmaps.shrink(0);
+}
+
+VAR(aaenvmap, 0, 2, 4);
+
+GLuint genenvmap(const vec &o, int envmapsize, int blur, bool onlysky)
+{
+ int rendersize = 1<<(envmapsize+aaenvmap), sizelimit = min(hwcubetexsize, min(screenw, screenh));
+ if(maxtexsize) sizelimit = min(sizelimit, maxtexsize);
+ while(rendersize > sizelimit) rendersize /= 2;
+ int texsize = min(rendersize, 1<<envmapsize);
+ if(!aaenvmap) rendersize = texsize;
+ GLuint tex;
+ glGenTextures(1, &tex);
+ glViewport(0, 0, rendersize, rendersize);
+ float yaw = 0, pitch = 0;
+ uchar *pixels = new uchar[3*rendersize*rendersize*2];
+ glPixelStorei(GL_PACK_ALIGNMENT, texalign(pixels, rendersize, 3));
+ loopi(6)
+ {
+ const cubemapside &side = cubemapsides[i];
+ switch(side.target)
+ {
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: // lf
+ yaw = 90; pitch = 0; break;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_X: // rt
+ yaw = 270; pitch = 0; break;
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: // ft
+ yaw = 180; pitch = 0; break;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: // bk
+ yaw = 0; pitch = 0; break;
+ case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: // dn
+ yaw = 270; pitch = -90; break;
+ case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: // up
+ yaw = 270; pitch = 90; break;
+ }
+ glFrontFace((side.flipx==side.flipy)!=side.swapxy ? GL_CW : GL_CCW);
+ drawcubemap(rendersize, o, yaw, pitch, side, onlysky);
+ uchar *src = pixels, *dst = &pixels[3*rendersize*rendersize];
+ glReadPixels(0, 0, rendersize, rendersize, GL_RGB, GL_UNSIGNED_BYTE, src);
+ if(rendersize > texsize)
+ {
+ scaletexture(src, rendersize, rendersize, 3, 3*rendersize, dst, texsize, texsize);
+ swap(src, dst);
+ }
+ if(blur > 0)
+ {
+ blurtexture(blur, 3, texsize, texsize, dst, src);
+ swap(src, dst);
+ }
+ createtexture(tex, texsize, texsize, src, 3, 2, GL_RGB5, side.target);
+ }
+ glFrontFace(GL_CW);
+ delete[] pixels;
+ glViewport(0, 0, screenw, screenh);
+ clientkeepalive();
+ forcecubemapload(tex);
+ return tex;
+}
+
+void initenvmaps()
+{
+ clearenvmaps();
+ skyenvmap = NULL;
+ if(shouldrenderskyenvmap()) envmaps.add().size = 1;
+ else if(skybox[0]) skyenvmap = cubemapload(skybox, true, false, true);
+ const vector<extentity *> &ents = entities::getents();
+ loopv(ents)
+ {
+ const extentity &ent = *ents[i];
+ if(ent.type != ET_ENVMAP) continue;
+ envmap &em = envmaps.add();
+ em.radius = ent.attr1 ? clamp(int(ent.attr1), 0, 10000) : envmapradius;
+ em.size = ent.attr2 ? clamp(int(ent.attr2), 4, 9) : 0;
+ em.blur = ent.attr3 ? clamp(int(ent.attr3), 1, 2) : 0;
+ em.o = ent.o;
+ }
+}
+
+void genenvmaps()
+{
+ if(envmaps.empty()) return;
+ renderprogress(0, "generating environment maps...");
+ int lastprogress = SDL_GetTicks();
+ loopv(envmaps)
+ {
+ envmap &em = envmaps[i];
+ em.tex = genenvmap(em.o, em.size ? min(em.size, envmapsize) : envmapsize, em.blur, em.radius < 0);
+ if(renderedframe) continue;
+ int millis = SDL_GetTicks();
+ if(millis - lastprogress >= 250)
+ {
+ renderprogress(float(i+1)/envmaps.length(), "generating environment maps...", 0, true);
+ lastprogress = millis;
+ }
+ }
+}
+
+ushort closestenvmap(const vec &o)
+{
+ ushort minemid = EMID_SKY;
+ float mindist = 1e16f;
+ loopv(envmaps)
+ {
+ envmap &em = envmaps[i];
+ float dist;
+ if(envmapbb)
+ {
+ if(!o.insidebb(vec(em.o).sub(em.radius), vec(em.o).add(em.radius))) continue;
+ dist = em.o.dist(o);
+ }
+ else
+ {
+ dist = em.o.dist(o);
+ if(dist > em.radius) continue;
+ }
+ if(dist < mindist)
+ {
+ minemid = EMID_RESERVED + i;
+ mindist = dist;
+ }
+ }
+ return minemid;
+}
+
+ushort closestenvmap(int orient, const ivec &co, int size)
+{
+ vec loc(co);
+ int dim = dimension(orient);
+ if(dimcoord(orient)) loc[dim] += size;
+ loc[R[dim]] += size/2;
+ loc[C[dim]] += size/2;
+ return closestenvmap(loc);
+}
+
+static inline GLuint lookupskyenvmap()
+{
+ return envmaps.length() && envmaps[0].radius < 0 ? envmaps[0].tex : (skyenvmap ? skyenvmap->id : 0);
+}
+
+GLuint lookupenvmap(Slot &slot)
+{
+ loopv(slot.sts) if(slot.sts[i].type==TEX_ENVMAP && slot.sts[i].t) return slot.sts[i].t->id;
+ return lookupskyenvmap();
+}
+
+GLuint lookupenvmap(ushort emid)
+{
+ if(emid==EMID_SKY || emid==EMID_CUSTOM) return skyenvmap ? skyenvmap->id : 0;
+ if(emid==EMID_NONE || !envmaps.inrange(emid-EMID_RESERVED)) return 0;
+ GLuint tex = envmaps[emid-EMID_RESERVED].tex;
+ return tex ? tex : lookupskyenvmap();
+}
+
+void cleanuptexture(Texture *t)
+{
+ DELETEA(t->alphamask);
+ if(t->id) { glDeleteTextures(1, &t->id); t->id = 0; }
+ if(t->type&Texture::TRANSIENT) textures.remove(t->name);
+}
+
+void cleanuptextures()
+{
+ cleanupmipmaps();
+ clearenvmaps();
+ loopv(slots) slots[i]->cleanup();
+ loopv(vslots) vslots[i]->cleanup();
+ loopi((MATF_VOLUME|MATF_INDEX)+1) materialslots[i].cleanup();
+ enumerate(textures, Texture, tex, cleanuptexture(&tex));
+}
+
+bool reloadtexture(const char *name)
+{
+ Texture *t = textures.access(path(name, true));
+ if(t) return reloadtexture(*t);
+ return true;
+}
+
+bool reloadtexture(Texture &tex)
+{
+ if(tex.id) return true;
+ switch(tex.type&Texture::TYPE)
+ {
+ case Texture::IMAGE:
+ {
+ int compress = 0;
+ ImageData s;
+ if(!texturedata(s, tex.name, NULL, true, &compress) || !newtexture(&tex, NULL, s, tex.clamp, tex.mipmap, false, false, compress)) return false;
+ break;
+ }
+
+ case Texture::CUBEMAP:
+ if(!cubemaploadwildcard(&tex, NULL, tex.mipmap, true)) return false;
+ break;
+ }
+ return true;
+}
+
+void reloadtex(char *name)
+{
+ Texture *t = textures.access(path(name, true));
+ if(!t) { conoutf(CON_ERROR, "texture %s is not loaded", name); return; }
+ if(t->type&Texture::TRANSIENT) { conoutf(CON_ERROR, "can't reload transient texture %s", name); return; }
+ DELETEA(t->alphamask);
+ Texture oldtex = *t;
+ t->id = 0;
+ if(!reloadtexture(*t))
+ {
+ if(t->id) glDeleteTextures(1, &t->id);
+ *t = oldtex;
+ conoutf(CON_ERROR, "failed to reload texture %s", name);
+ }
+}
+
+COMMAND(reloadtex, "s");
+
+void reloadtextures()
+{
+ int reloaded = 0;
+ enumerate(textures, Texture, tex,
+ {
+ loadprogress = float(++reloaded)/textures.numelems;
+ reloadtexture(tex);
+ });
+ loadprogress = 0;
+}
+
+enum
+{
+ DDSD_CAPS = 0x00000001,
+ DDSD_HEIGHT = 0x00000002,
+ DDSD_WIDTH = 0x00000004,
+ DDSD_PITCH = 0x00000008,
+ DDSD_PIXELFORMAT = 0x00001000,
+ DDSD_MIPMAPCOUNT = 0x00020000,
+ DDSD_LINEARSIZE = 0x00080000,
+ DDSD_BACKBUFFERCOUNT = 0x00800000,
+ DDPF_ALPHAPIXELS = 0x00000001,
+ DDPF_FOURCC = 0x00000004,
+ DDPF_INDEXED = 0x00000020,
+ DDPF_ALPHA = 0x00000002,
+ DDPF_RGB = 0x00000040,
+ DDPF_COMPRESSED = 0x00000080,
+ DDPF_LUMINANCE = 0x00020000,
+ DDSCAPS_COMPLEX = 0x00000008,
+ DDSCAPS_TEXTURE = 0x00001000,
+ DDSCAPS_MIPMAP = 0x00400000,
+ DDSCAPS2_CUBEMAP = 0x00000200,
+ DDSCAPS2_CUBEMAP_POSITIVEX = 0x00000400,
+ DDSCAPS2_CUBEMAP_NEGATIVEX = 0x00000800,
+ DDSCAPS2_CUBEMAP_POSITIVEY = 0x00001000,
+ DDSCAPS2_CUBEMAP_NEGATIVEY = 0x00002000,
+ DDSCAPS2_CUBEMAP_POSITIVEZ = 0x00004000,
+ DDSCAPS2_CUBEMAP_NEGATIVEZ = 0x00008000,
+ DDSCAPS2_VOLUME = 0x00200000,
+ FOURCC_DXT1 = 0x31545844,
+ FOURCC_DXT2 = 0x32545844,
+ FOURCC_DXT3 = 0x33545844,
+ FOURCC_DXT4 = 0x34545844,
+ FOURCC_DXT5 = 0x35545844,
+ FOURCC_ATI1 = 0x31495441,
+ FOURCC_ATI2 = 0x32495441
+};
+
+struct DDCOLORKEY { uint dwColorSpaceLowValue, dwColorSpaceHighValue; };
+struct DDPIXELFORMAT
+{
+ uint dwSize, dwFlags, dwFourCC;
+ union { uint dwRGBBitCount, dwYUVBitCount, dwZBufferBitDepth, dwAlphaBitDepth, dwLuminanceBitCount, dwBumpBitCount, dwPrivateFormatBitCount; };
+ union { uint dwRBitMask, dwYBitMask, dwStencilBitDepth, dwLuminanceBitMask, dwBumpDuBitMask, dwOperations; };
+ union { uint dwGBitMask, dwUBitMask, dwZBitMask, dwBumpDvBitMask; struct { ushort wFlipMSTypes, wBltMSTypes; } MultiSampleCaps; };
+ union { uint dwBBitMask, dwVBitMask, dwStencilBitMask, dwBumpLuminanceBitMask; };
+ union { uint dwRGBAlphaBitMask, dwYUVAlphaBitMask, dwLuminanceAlphaBitMask, dwRGBZBitMask, dwYUVZBitMask; };
+
+};
+struct DDSCAPS2 { uint dwCaps, dwCaps2, dwCaps3, dwCaps4; };
+struct DDSURFACEDESC2
+{
+ uint dwSize, dwFlags, dwHeight, dwWidth;
+ union { int lPitch; uint dwLinearSize; };
+ uint dwBackBufferCount;
+ union { uint dwMipMapCount, dwRefreshRate, dwSrcVBHandle; };
+ uint dwAlphaBitDepth, dwReserved, lpSurface;
+ union { DDCOLORKEY ddckCKDestOverlay; uint dwEmptyFaceColor; };
+ DDCOLORKEY ddckCKDestBlt, ddckCKSrcOverlay, ddckCKSrcBlt;
+ union { DDPIXELFORMAT ddpfPixelFormat; uint dwFVF; };
+ DDSCAPS2 ddsCaps;
+ uint dwTextureStage;
+};
+
+#define DECODEDDS(name, dbpp, initblock, writeval, nextval) \
+static void name(ImageData &s) \
+{ \
+ ImageData d(s.w, s.h, dbpp); \
+ uchar *dst = d.data; \
+ const uchar *src = s.data; \
+ for(int by = 0; by < s.h; by += s.align) \
+ { \
+ for(int bx = 0; bx < s.w; bx += s.align, src += s.bpp) \
+ { \
+ int maxy = min(d.h - by, s.align), maxx = min(d.w - bx, s.align); \
+ initblock; \
+ loop(y, maxy) \
+ { \
+ int x; \
+ for(x = 0; x < maxx; ++x) \
+ { \
+ writeval; \
+ nextval; \
+ dst += d.bpp; \
+ } \
+ for(; x < s.align; ++x) { nextval; } \
+ dst += d.pitch - maxx*d.bpp; \
+ } \
+ dst += maxx*d.bpp - maxy*d.pitch; \
+ } \
+ dst += (s.align-1)*d.pitch; \
+ } \
+ s.replace(d); \
+}
+
+DECODEDDS(decodedxt1, s.compressed == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT ? 4 : 3,
+ ushort color0 = lilswap(*(const ushort *)src);
+ ushort color1 = lilswap(*(const ushort *)&src[2]);
+ uint bits = lilswap(*(const uint *)&src[4]);
+ bvec4 rgba[4];
+ rgba[0] = bvec4(bvec::from565(color0), 0xFF);
+ rgba[1] = bvec4(bvec::from565(color1), 0xFF);
+ if(color0 > color1)
+ {
+ rgba[2].lerp(rgba[0], rgba[1], 2, 1, 3);
+ rgba[3].lerp(rgba[0], rgba[1], 1, 2, 3);
+ }
+ else
+ {
+ rgba[2].lerp(rgba[0], rgba[1], 1, 1, 2);
+ rgba[3] = bvec4(0, 0, 0, 0);
+ }
+,
+ memcpy(dst, rgba[bits&3].v, d.bpp);
+,
+ bits >>= 2;
+);
+
+DECODEDDS(decodedxt3, 4,
+ ullong alpha = lilswap(*(const ullong *)src);
+ ushort color0 = lilswap(*(const ushort *)&src[8]);
+ ushort color1 = lilswap(*(const ushort *)&src[10]);
+ uint bits = lilswap(*(const uint *)&src[12]);
+ bvec rgb[4];
+ rgb[0] = bvec::from565(color0);
+ rgb[1] = bvec::from565(color1);
+ rgb[2].lerp(rgb[0], rgb[1], 2, 1, 3);
+ rgb[3].lerp(rgb[0], rgb[1], 1, 2, 3);
+,
+ memcpy(dst, rgb[bits&3].v, 3);
+ dst[3] = ((alpha&0xF)*1088 + 32) >> 6;
+,
+ bits >>= 2;
+ alpha >>= 4;
+);
+
+static inline void decodealpha(uchar alpha0, uchar alpha1, uchar alpha[8])
+{
+ alpha[0] = alpha0;
+ alpha[1] = alpha1;
+ if(alpha0 > alpha1)
+ {
+ alpha[2] = (6*alpha0 + alpha1)/7;
+ alpha[3] = (5*alpha0 + 2*alpha1)/7;
+ alpha[4] = (4*alpha0 + 3*alpha1)/7;
+ alpha[5] = (3*alpha0 + 4*alpha1)/7;
+ alpha[6] = (2*alpha0 + 5*alpha1)/7;
+ alpha[7] = (alpha0 + 6*alpha1)/7;
+ }
+ else
+ {
+ alpha[2] = (4*alpha0 + alpha1)/5;
+ alpha[3] = (3*alpha0 + 2*alpha1)/5;
+ alpha[4] = (2*alpha0 + 3*alpha1)/5;
+ alpha[5] = (alpha0 + 4*alpha1)/5;
+ alpha[6] = 0;
+ alpha[7] = 0xFF;
+ }
+}
+
+DECODEDDS(decodedxt5, 4,
+ uchar alpha[8];
+ decodealpha(src[0], src[1], alpha);
+ ullong alphabits = lilswap(*(const ushort *)&src[2]) + ((ullong)lilswap(*(const uint *)&src[4]) << 16);
+ ushort color0 = lilswap(*(const ushort *)&src[8]);
+ ushort color1 = lilswap(*(const ushort *)&src[10]);
+ uint bits = lilswap(*(const uint *)&src[12]);
+ bvec rgb[4];
+ rgb[0] = bvec::from565(color0);
+ rgb[1] = bvec::from565(color1);
+ rgb[2].lerp(rgb[0], rgb[1], 2, 1, 3);
+ rgb[3].lerp(rgb[0], rgb[1], 1, 2, 3);
+,
+ memcpy(dst, rgb[bits&3].v, 3);
+ dst[3] = alpha[alphabits&7];
+,
+ bits >>= 2;
+ alphabits >>= 3;
+);
+
+DECODEDDS(decodergtc1, 1,
+ uchar red[8];
+ decodealpha(src[0], src[1], red);
+ ullong redbits = lilswap(*(const ushort *)&src[2]) + ((ullong)lilswap(*(const uint *)&src[4]) << 16);
+,
+ dst[0] = red[redbits&7];
+,
+ redbits >>= 3;
+);
+
+DECODEDDS(decodergtc2, 2,
+ uchar red[8];
+ decodealpha(src[0], src[1], red);
+ ullong redbits = lilswap(*(const ushort *)&src[2]) + ((ullong)lilswap(*(const uint *)&src[4]) << 16);
+ uchar green[8];
+ decodealpha(src[8], src[9], green);
+ ullong greenbits = lilswap(*(const ushort *)&src[10]) + ((ullong)lilswap(*(const uint *)&src[12]) << 16);
+,
+ dst[0] = red[redbits&7];
+ dst[1] = green[greenbits&7];
+,
+ redbits >>= 3;
+ greenbits >>= 3;
+);
+
+bool loaddds(const char *filename, ImageData &image, int force)
+{
+ stream *f = openfile(filename, "rb");
+ if(!f) return false;
+ GLenum format = GL_FALSE;
+ uchar magic[4];
+ if(f->read(magic, 4) != 4 || memcmp(magic, "DDS ", 4)) { delete f; return false; }
+ DDSURFACEDESC2 d;
+ if(f->read(&d, sizeof(d)) != sizeof(d)) { delete f; return false; }
+ lilswap((uint *)&d, sizeof(d)/sizeof(uint));
+ if(d.dwSize != sizeof(DDSURFACEDESC2) || d.ddpfPixelFormat.dwSize != sizeof(DDPIXELFORMAT)) { delete f; return false; }
+ bool supported = false;
+ if(d.ddpfPixelFormat.dwFlags & DDPF_FOURCC)
+ {
+ switch(d.ddpfPixelFormat.dwFourCC)
+ {
+ case FOURCC_DXT1:
+ if((supported = hasS3TC) || force) format = d.ddpfPixelFormat.dwFlags & DDPF_ALPHAPIXELS ? GL_COMPRESSED_RGBA_S3TC_DXT1_EXT : GL_COMPRESSED_RGB_S3TC_DXT1_EXT;
+ break;
+ case FOURCC_DXT2:
+ case FOURCC_DXT3:
+ if((supported = hasS3TC) || force) format = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT;
+ break;
+ case FOURCC_DXT4:
+ case FOURCC_DXT5:
+ if((supported = hasS3TC) || force) format = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT;
+ break;
+ case FOURCC_ATI1:
+ if((supported = hasRGTC) || force) format = GL_COMPRESSED_RED_RGTC1;
+ else if((supported = hasLATC)) format = GL_COMPRESSED_LUMINANCE_LATC1_EXT;
+ break;
+ case FOURCC_ATI2:
+ if((supported = hasRGTC) || force) format = GL_COMPRESSED_RG_RGTC2;
+ else if((supported = hasLATC)) format = GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT;
+ break;
+ }
+ }
+ if(!format || (!supported && !force)) { delete f; return false; }
+ if(dbgdds) conoutf(CON_DEBUG, "%s: format 0x%X, %d x %d, %d mipmaps", filename, format, d.dwWidth, d.dwHeight, d.dwMipMapCount);
+ int bpp = 0;
+ switch(format)
+ {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: bpp = 8; break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: bpp = 16; break;
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_RED_RGTC1: bpp = 8; break;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_RG_RGTC2: bpp = 16; break;
+ }
+ image.setdata(NULL, d.dwWidth, d.dwHeight, bpp, !supported || force > 0 ? 1 : d.dwMipMapCount, 4, format);
+ size_t size = image.calcsize();
+ if(f->read(image.data, size) != size) { delete f; image.cleanup(); return false; }
+ delete f;
+ if(!supported || force > 0) switch(format)
+ {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
+ decodedxt1(image);
+ break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
+ decodedxt3(image);
+ break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
+ decodedxt5(image);
+ break;
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_RED_RGTC1:
+ decodergtc1(image);
+ break;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_RG_RGTC2:
+ decodergtc2(image);
+ break;
+ }
+ return true;
+}
+
+void gendds(char *infile, char *outfile)
+{
+ if(!hasS3TC || usetexcompress <= 1) { conoutf(CON_ERROR, "OpenGL driver does not support S3TC texture compression"); return; }
+
+ glHint(GL_TEXTURE_COMPRESSION_HINT, GL_NICEST);
+
+ defformatstring(cfile, "<compress>%s", infile);
+ extern void reloadtex(char *name);
+ Texture *t = textures.access(path(cfile));
+ if(t) reloadtex(cfile);
+ t = textureload(cfile);
+ if(t==notexture) { conoutf(CON_ERROR, "failed loading %s", infile); return; }
+
+ glBindTexture(GL_TEXTURE_2D, t->id);
+ GLint compressed = 0, format = 0, width = 0, height = 0;
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_COMPRESSED, &compressed);
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_INTERNAL_FORMAT, &format);
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_WIDTH, &width);
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, 0, GL_TEXTURE_HEIGHT, &height);
+
+ if(!compressed) { conoutf(CON_ERROR, "failed compressing %s", infile); return; }
+ int fourcc = 0;
+ switch(format)
+ {
+ case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: fourcc = FOURCC_DXT1; conoutf("compressed as DXT1"); break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: fourcc = FOURCC_DXT1; conoutf("compressed as DXT1a"); break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: fourcc = FOURCC_DXT3; conoutf("compressed as DXT3"); break;
+ case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: fourcc = FOURCC_DXT5; conoutf("compressed as DXT5"); break;
+ case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
+ case GL_COMPRESSED_RED_RGTC1: fourcc = FOURCC_ATI1; conoutf("compressed as ATI1"); break;
+ case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
+ case GL_COMPRESSED_RG_RGTC2: fourcc = FOURCC_ATI2; conoutf("compressed as ATI2"); break;
+ default:
+ conoutf(CON_ERROR, "failed compressing %s: unknown format: 0x%X", infile, format); break;
+ return;
+ }
+
+ if(!outfile[0])
+ {
+ static string buf;
+ copystring(buf, infile);
+ int len = strlen(buf);
+ if(len > 4 && buf[len-4]=='.') memcpy(&buf[len-4], ".dds", 4);
+ else concatstring(buf, ".dds");
+ outfile = buf;
+ }
+
+ stream *f = openfile(path(outfile, true), "wb");
+ if(!f) { conoutf(CON_ERROR, "failed writing to %s", outfile); return; }
+
+ int csize = 0;
+ for(int lw = width, lh = height, level = 0;;)
+ {
+ GLint size = 0;
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, level++, GL_TEXTURE_COMPRESSED_IMAGE_SIZE, &size);
+ csize += size;
+ if(max(lw, lh) <= 1) break;
+ if(lw > 1) lw /= 2;
+ if(lh > 1) lh /= 2;
+ }
+
+ DDSURFACEDESC2 d;
+ memset(&d, 0, sizeof(d));
+ d.dwSize = sizeof(DDSURFACEDESC2);
+ d.dwWidth = width;
+ d.dwHeight = height;
+ d.dwLinearSize = csize;
+ d.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH | DDSD_PIXELFORMAT | DDSD_LINEARSIZE | DDSD_MIPMAPCOUNT;
+ d.ddsCaps.dwCaps = DDSCAPS_TEXTURE | DDSCAPS_COMPLEX | DDSCAPS_MIPMAP;
+ d.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
+ d.ddpfPixelFormat.dwFlags = DDPF_FOURCC | (alphaformat(uncompressedformat(format)) ? DDPF_ALPHAPIXELS : 0);
+ d.ddpfPixelFormat.dwFourCC = fourcc;
+
+ uchar *data = new uchar[csize], *dst = data;
+ for(int lw = width, lh = height;;)
+ {
+ GLint size;
+ glGetTexLevelParameteriv(GL_TEXTURE_2D, d.dwMipMapCount, GL_TEXTURE_COMPRESSED_IMAGE_SIZE, &size);
+ glGetCompressedTexImage_(GL_TEXTURE_2D, d.dwMipMapCount++, dst);
+ dst += size;
+ if(max(lw, lh) <= 1) break;
+ if(lw > 1) lw /= 2;
+ if(lh > 1) lh /= 2;
+ }
+
+ lilswap((uint *)&d, sizeof(d)/sizeof(uint));
+
+ f->write("DDS ", 4);
+ f->write(&d, sizeof(d));
+ f->write(data, csize);
+ delete f;
+
+ delete[] data;
+
+ conoutf("wrote DDS file %s", outfile);
+
+ setuptexcompress();
+}
+COMMAND(gendds, "ss");
+
+void writepngchunk(stream *f, const char *type, uchar *data = NULL, uint len = 0)
+{
+ f->putbig<uint>(len);
+ f->write(type, 4);
+ f->write(data, len);
+
+ uint crc = crc32(0, Z_NULL, 0);
+ crc = crc32(crc, (const Bytef *)type, 4);
+ if(data) crc = crc32(crc, data, len);
+ f->putbig<uint>(crc);
+}
+
+VARP(compresspng, 0, 9, 9);
+
+void savepng(const char *filename, ImageData &image, bool flip)
+{
+ uchar ctype = 0;
+ switch(image.bpp)
+ {
+ case 1: ctype = 0; break;
+ case 2: ctype = 4; break;
+ case 3: ctype = 2; break;
+ case 4: ctype = 6; break;
+ default: conoutf(CON_ERROR, "failed saving png to %s", filename); return;
+ }
+ stream *f = openfile(filename, "wb");
+ if(!f) { conoutf(CON_ERROR, "could not write to %s", filename); return; }
+
+ uchar signature[] = { 137, 80, 78, 71, 13, 10, 26, 10 };
+ f->write(signature, sizeof(signature));
+
+ struct pngihdr
+ {
+ uint width, height;
+ uchar bitdepth, colortype, compress, filter, interlace;
+ } ihdr = { bigswap<uint>(image.w), bigswap<uint>(image.h), 8, ctype, 0, 0, 0 };
+ writepngchunk(f, "IHDR", (uchar *)&ihdr, 13);
+
+ stream::offset idat = f->tell();
+ uint len = 0;
+ f->write("\0\0\0\0IDAT", 8);
+ uint crc = crc32(0, Z_NULL, 0);
+ crc = crc32(crc, (const Bytef *)"IDAT", 4);
+
+ z_stream z;
+ z.zalloc = NULL;
+ z.zfree = NULL;
+ z.opaque = NULL;
+
+ if(deflateInit(&z, compresspng) != Z_OK)
+ goto error;
+
+ uchar buf[1<<12];
+ z.next_out = (Bytef *)buf;
+ z.avail_out = sizeof(buf);
+
+ loopi(image.h)
+ {
+ uchar filter = 0;
+ loopj(2)
+ {
+ z.next_in = j ? (Bytef *)image.data + (flip ? image.h-i-1 : i)*image.pitch : (Bytef *)&filter;
+ z.avail_in = j ? image.w*image.bpp : 1;
+ while(z.avail_in > 0)
+ {
+ if(deflate(&z, Z_NO_FLUSH) != Z_OK) goto cleanuperror;
+ #define FLUSHZ do { \
+ int flush = sizeof(buf) - z.avail_out; \
+ crc = crc32(crc, buf, flush); \
+ len += flush; \
+ f->write(buf, flush); \
+ z.next_out = (Bytef *)buf; \
+ z.avail_out = sizeof(buf); \
+ } while(0)
+ FLUSHZ;
+ }
+ }
+ }
+
+ for(;;)
+ {
+ int err = deflate(&z, Z_FINISH);
+ if(err != Z_OK && err != Z_STREAM_END) goto cleanuperror;
+ FLUSHZ;
+ if(err == Z_STREAM_END) break;
+ }
+
+ deflateEnd(&z);
+
+ f->seek(idat, SEEK_SET);
+ f->putbig<uint>(len);
+ f->seek(0, SEEK_END);
+ f->putbig<uint>(crc);
+
+ writepngchunk(f, "IEND");
+
+ delete f;
+ return;
+
+cleanuperror:
+ deflateEnd(&z);
+
+error:
+ delete f;
+
+ conoutf(CON_ERROR, "failed saving png to %s", filename);
+}
+
+struct tgaheader
+{
+ uchar identsize;
+ uchar cmaptype;
+ uchar imagetype;
+ uchar cmaporigin[2];
+ uchar cmapsize[2];
+ uchar cmapentrysize;
+ uchar xorigin[2];
+ uchar yorigin[2];
+ uchar width[2];
+ uchar height[2];
+ uchar pixelsize;
+ uchar descbyte;
+};
+
+VARP(compresstga, 0, 1, 1);
+
+void savetga(const char *filename, ImageData &image, bool flip)
+{
+ switch(image.bpp)
+ {
+ case 3: case 4: break;
+ default: conoutf(CON_ERROR, "failed saving tga to %s", filename); return;
+ }
+
+ stream *f = openfile(filename, "wb");
+ if(!f) { conoutf(CON_ERROR, "could not write to %s", filename); return; }
+
+ tgaheader hdr;
+ memset(&hdr, 0, sizeof(hdr));
+ hdr.pixelsize = image.bpp*8;
+ hdr.width[0] = image.w&0xFF;
+ hdr.width[1] = (image.w>>8)&0xFF;
+ hdr.height[0] = image.h&0xFF;
+ hdr.height[1] = (image.h>>8)&0xFF;
+ hdr.imagetype = compresstga ? 10 : 2;
+ f->write(&hdr, sizeof(hdr));
+
+ uchar buf[128*4];
+ loopi(image.h)
+ {
+ uchar *src = image.data + (flip ? i : image.h - i - 1)*image.pitch;
+ for(int remaining = image.w; remaining > 0;)
+ {
+ int raw = 1;
+ if(compresstga)
+ {
+ int run = 1;
+ for(uchar *scan = src; run < min(remaining, 128); run++)
+ {
+ scan += image.bpp;
+ if(src[0]!=scan[0] || src[1]!=scan[1] || src[2]!=scan[2] || (image.bpp==4 && src[3]!=scan[3])) break;
+ }
+ if(run > 1)
+ {
+ f->putchar(0x80 | (run-1));
+ f->putchar(src[2]); f->putchar(src[1]); f->putchar(src[0]);
+ if(image.bpp==4) f->putchar(src[3]);
+ src += run*image.bpp;
+ remaining -= run;
+ if(remaining <= 0) break;
+ }
+ for(uchar *scan = src; raw < min(remaining, 128); raw++)
+ {
+ scan += image.bpp;
+ if(src[0]==scan[0] && src[1]==scan[1] && src[2]==scan[2] && (image.bpp!=4 || src[3]==scan[3])) break;
+ }
+ f->putchar(raw - 1);
+ }
+ else raw = min(remaining, 128);
+ uchar *dst = buf;
+ loopj(raw)
+ {
+ dst[0] = src[2];
+ dst[1] = src[1];
+ dst[2] = src[0];
+ if(image.bpp==4) dst[3] = src[3];
+ dst += image.bpp;
+ src += image.bpp;
+ }
+ f->write(buf, raw*image.bpp);
+ remaining -= raw;
+ }
+ }
+
+ delete f;
+}
+
+enum
+{
+ IMG_BMP = 0,
+ IMG_TGA = 1,
+ IMG_PNG = 2,
+ IMG_JPG = 3,
+ NUMIMG
+};
+
+VARP(screenshotquality, 0, 97, 100);
+VARP(screenshotformat, 0, IMG_PNG, NUMIMG-1);
+
+const char *imageexts[NUMIMG] = { ".bmp", ".tga", ".png", ".jpg" };
+
+int guessimageformat(const char *filename, int format = IMG_BMP)
+{
+ int len = strlen(filename);
+ loopi(NUMIMG)
+ {
+ int extlen = strlen(imageexts[i]);
+ if(len >= extlen && !strcasecmp(&filename[len-extlen], imageexts[i])) return i;
+ }
+ return format;
+}
+
+void saveimage(const char *filename, int format, ImageData &image, bool flip = false)
+{
+ switch(format)
+ {
+ case IMG_PNG: savepng(filename, image, flip); break;
+ case IMG_TGA: savetga(filename, image, flip); break;
+ default:
+ {
+ ImageData flipped(image.w, image.h, image.bpp, image.data);
+ if(flip) texflip(flipped);
+ SDL_Surface *s = wrapsurface(flipped.data, flipped.w, flipped.h, flipped.bpp);
+ if(!s) break;
+ stream *f = openfile(filename, "wb");
+ if(f)
+ {
+ switch(format) {
+ case IMG_JPG:
+#if SDL_IMAGE_VERSION_ATLEAST(2, 0, 2)
+ IMG_SaveJPG_RW(s, f->rwops(), 1, screenshotquality);
+#else
+ conoutf(CON_ERROR, "JPG screenshot support requires SDL_image 2.0.2");
+#endif
+ break;
+ default: SDL_SaveBMP_RW(s, f->rwops(), 1); break;
+ }
+ delete f;
+ }
+ SDL_FreeSurface(s);
+ break;
+ }
+ }
+}
+
+bool loadimage(const char *filename, ImageData &image)
+{
+ SDL_Surface *s = loadsurface(path(filename, true));
+ if(!s) return false;
+ image.wrap(s);
+ return true;
+}
+
+SVARP(screenshotdir, "screenshot");
+
+void screenshot(char *filename)
+{
+ static string buf;
+ int format = -1, dirlen = 0;
+ copystring(buf, screenshotdir);
+ if(screenshotdir[0])
+ {
+ dirlen = strlen(buf);
+ if(buf[dirlen] != '/' && buf[dirlen] != '\\' && dirlen+1 < (int)sizeof(buf)) { buf[dirlen++] = '/'; buf[dirlen] = '\0'; }
+ const char *dir = findfile(buf, "w");
+ if(!fileexists(dir, "w")) createdir(dir);
+ }
+ if(filename[0])
+ {
+ concatstring(buf, filename);
+ format = guessimageformat(buf, -1);
+ }
+ else
+ {
+ string sstime;
+ time_t t = time(NULL);
+ size_t len = strftime(sstime, sizeof(sstime), "%Y-%m-%d_%H.%M.%S", localtime(&t));
+ sstime[min(len, sizeof(sstime)-1)] = '\0';
+ concatstring(buf, sstime);
+
+ const char *map = game::getclientmap(), *ssinfo = game::getscreenshotinfo();
+ if(map && map[0])
+ {
+ concatstring(buf, "_");
+ concatstring(buf, map);
+ }
+ if(ssinfo && ssinfo[0])
+ {
+ concatstring(buf, "_");
+ concatstring(buf, ssinfo);
+ }
+
+ for(char *s = &buf[dirlen]; *s; s++) if(iscubespace(*s) || *s == '/' || *s == '\\') *s = '-';
+ }
+ if(format < 0)
+ {
+ format = screenshotformat;
+ concatstring(buf, imageexts[format]);
+ }
+
+ ImageData image(screenw, screenh, 3);
+ glPixelStorei(GL_PACK_ALIGNMENT, texalign(image.data, screenw, 3));
+ glReadPixels(0, 0, screenw, screenh, GL_RGB, GL_UNSIGNED_BYTE, image.data);
+ saveimage(path(buf), format, image, true);
+}
+
+COMMAND(screenshot, "s");
+
+void flipnormalmapy(char *destfile, char *normalfile) // jpg/png /tga-> tga
+{
+ ImageData ns;
+ if(!loadimage(normalfile, ns)) return;
+ ImageData d(ns.w, ns.h, 3);
+ readwritetex(d, ns,
+ dst[0] = src[0];
+ dst[1] = 255 - src[1];
+ dst[2] = src[2];
+ );
+ saveimage(destfile, guessimageformat(destfile, IMG_TGA), d);
+}
+
+void mergenormalmaps(char *heightfile, char *normalfile) // jpg/png/tga + tga -> tga
+{
+ ImageData hs, ns;
+ if(!loadimage(heightfile, hs) || !loadimage(normalfile, ns) || hs.w != ns.w || hs.h != ns.h) return;
+ ImageData d(ns.w, ns.h, 3);
+ read2writetex(d, hs, srch, ns, srcn,
+ *(bvec *)dst = bvec(((bvec *)srcn)->tonormal().mul(2).add(((bvec *)srch)->tonormal()).normalize());
+ );
+ saveimage(normalfile, guessimageformat(normalfile, IMG_TGA), d);
+}
+
+COMMAND(flipnormalmapy, "ss");
+COMMAND(mergenormalmaps, "ss");
+
generated by cgit v1.2.3 (git 2.46.0) at 2026-02-21 09:08:36 +0000