]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - gl_textures.c
fixed some dynamic lighting bugs related to glowing self
[xonotic/darkplaces.git] / gl_textures.c
index b2629ba9d55f2634063ac727b41077e9a4f51a3a..558b1f59cb457bfab6721dec5a539c06e0e5c99e 100644 (file)
@@ -1,5 +1,6 @@
 
 #include "quakedef.h"
+#include "image.h"
 
 cvar_t r_max_size = {CVAR_SAVE, "r_max_size", "2048"};
 cvar_t r_max_scrapsize = {CVAR_SAVE, "r_max_scrapsize", "256"};
@@ -36,11 +37,11 @@ typedef struct
 }
 textypeinfo_t;
 
-static textypeinfo_t textype_qpalette       = {TEXTYPE_QPALETTE, 1, 4, GL_RGBA, 3};
-static textypeinfo_t textype_rgb            = {TEXTYPE_RGB     , 3, 3, GL_RGB , 3};
-static textypeinfo_t textype_rgba           = {TEXTYPE_RGBA    , 4, 4, GL_RGBA, 3};
-static textypeinfo_t textype_qpalette_alpha = {TEXTYPE_QPALETTE, 1, 4, GL_RGBA, 4};
-static textypeinfo_t textype_rgba_alpha     = {TEXTYPE_RGBA    , 4, 4, GL_RGBA, 4};
+static textypeinfo_t textype_palette       = {TEXTYPE_PALETTE, 1, 4, GL_RGBA, 3};
+static textypeinfo_t textype_rgb           = {TEXTYPE_RGB    , 3, 3, GL_RGB , 3};
+static textypeinfo_t textype_rgba          = {TEXTYPE_RGBA   , 4, 4, GL_RGBA, 3};
+static textypeinfo_t textype_palette_alpha = {TEXTYPE_PALETTE, 1, 4, GL_RGBA, 4};
+static textypeinfo_t textype_rgba_alpha    = {TEXTYPE_RGBA   , 4, 4, GL_RGBA, 4};
 
 // a tiling texture (most common type)
 #define GLIMAGETYPE_TILE 0
@@ -52,6 +53,8 @@ static textypeinfo_t textype_rgba_alpha     = {TEXTYPE_RGBA    , 4, 4, GL_RGBA,
 #define GLTEXTURETYPE_3D 2
 #define GLTEXTURETYPE_CUBEMAP 3
 
+static int gltexturetypeenums[4] = {GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_CUBE_MAP_ARB};
+static int gltexturetypedimensions[4] = {1, 2, 3, 2};
 static int cubemapside[6] =
 {
        GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB,
@@ -108,6 +111,8 @@ typedef struct gltexture_s
        textypeinfo_t *textype;
        // one of the GLTEXTURETYPE_ values
        int texturetype;
+       // palette if the texture is TEXTYPE_PALETTE
+       const unsigned int *palette;
 }
 gltexture_t;
 
@@ -137,8 +142,8 @@ static textypeinfo_t *R_GetTexTypeInfo(int textype, int flags)
        {
                switch(textype)
                {
-               case TEXTYPE_QPALETTE:
-                       return &textype_qpalette_alpha;
+               case TEXTYPE_PALETTE:
+                       return &textype_palette_alpha;
                case TEXTYPE_RGB:
                        Host_Error("R_GetTexTypeInfo: RGB format has no alpha, TEXF_ALPHA not allowed\n");
                        return NULL;
@@ -153,8 +158,8 @@ static textypeinfo_t *R_GetTexTypeInfo(int textype, int flags)
        {
                switch(textype)
                {
-               case TEXTYPE_QPALETTE:
-                       return &textype_qpalette;
+               case TEXTYPE_PALETTE:
+                       return &textype_palette;
                case TEXTYPE_RGB:
                        return &textype_rgb;
                case TEXTYPE_RGBA:
@@ -541,32 +546,38 @@ void R_MakeResizeBufferBigger(int size)
        }
 }
 
+static void GL_SetupTextureParameters(int flags, int texturetype)
+{
+       int textureenum = gltexturetypeenums[texturetype];
+       int wrapmode = (flags & TEXF_CLAMP) ? GL_CLAMP : GL_REPEAT;
+
+       CHECKGLERROR
+
+       qglTexParameteri(textureenum, GL_TEXTURE_WRAP_S, wrapmode);
+       qglTexParameteri(textureenum, GL_TEXTURE_WRAP_T, wrapmode);
+       if (gltexturetypedimensions[texturetype] >= 3)
+               qglTexParameteri(textureenum, GL_TEXTURE_WRAP_R, wrapmode);
+
+       if (flags & TEXF_MIPMAP)
+               qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_min);
+       else
+               qglTexParameteri(textureenum, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
+       qglTexParameteri(textureenum, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
+
+       CHECKGLERROR
+}
+
 static void R_Upload(gltexture_t *glt, qbyte *data)
 {
        int i, mip, width, height, depth, internalformat;
        qbyte *prevbuffer;
        prevbuffer = data;
 
+       CHECKGLERROR
+
        glt->texnum = glt->image->texnum;
-       switch(glt->image->texturetype)
-       {
-       case GLTEXTURETYPE_1D:
-               qglBindTexture(GL_TEXTURE_1D, glt->image->texnum);
-               CHECKGLERROR
-               break;
-       case GLTEXTURETYPE_2D:
-               qglBindTexture(GL_TEXTURE_2D, glt->image->texnum);
-               CHECKGLERROR
-               break;
-       case GLTEXTURETYPE_3D:
-               qglBindTexture(GL_TEXTURE_3D, glt->image->texnum);
-               CHECKGLERROR
-               break;
-       case GLTEXTURETYPE_CUBEMAP:
-               qglBindTexture(GL_TEXTURE_CUBE_MAP_ARB, glt->image->texnum);
-               CHECKGLERROR
-               break;
-       }
+       qglBindTexture(gltexturetypeenums[glt->image->texturetype], glt->image->texnum);
+       CHECKGLERROR
        glt->flags &= ~GLTEXF_UPLOAD;
        gl_backend_rebindtextures = true;
 
@@ -583,31 +594,20 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
                        case GLTEXTURETYPE_1D:
                                qglTexImage1D(GL_TEXTURE_1D, 0, glt->image->glinternalformat, glt->image->width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
                                CHECKGLERROR
-                               qglTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                               CHECKGLERROR
-                               qglTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                               CHECKGLERROR
                                break;
                        case GLTEXTURETYPE_2D:
                                qglTexImage2D(GL_TEXTURE_2D, 0, glt->image->glinternalformat, glt->image->width, glt->image->height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
                                CHECKGLERROR
-                               qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                               CHECKGLERROR
-                               qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                               CHECKGLERROR
                                break;
                        case GLTEXTURETYPE_3D:
                                qglTexImage3D(GL_TEXTURE_3D, 0, glt->image->glinternalformat, glt->image->width, glt->image->height, glt->image->depth, 0, glt->image->glformat, GL_UNSIGNED_BYTE, resizebuffer);
                                CHECKGLERROR
-                               qglTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                               CHECKGLERROR
-                               qglTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                               CHECKGLERROR
                                break;
                        default:
                                Host_Error("R_Upload: fragment texture of type other than 1D, 2D, or 3D\n");
                                break;
                        }
+                       GL_SetupTextureParameters(glt->image->flags, glt->image->texturetype);
                }
 
                if (prevbuffer == NULL)
@@ -616,12 +616,12 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
                        memset(resizebuffer, 255, glt->width * glt->height * glt->image->depth * glt->image->bytesperpixel);
                        prevbuffer = resizebuffer;
                }
-               else if (glt->textype->textype == TEXTYPE_QPALETTE)
+               else if (glt->textype->textype == TEXTYPE_PALETTE)
                {
                        // promote paletted to RGBA, so we only have to worry about RGB and
                        // RGBA in the rest of this code
-                       R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->bytesperpixel);
-                       Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth, d_8to24table);
+                       R_MakeResizeBufferBigger(glt->image->width * glt->image->height * glt->image->depth * glt->image->sides * glt->image->bytesperpixel);
+                       Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth, glt->palette);
                        prevbuffer = colorconvertbuffer;
                }
 
@@ -654,7 +654,7 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
        for (height = 1;height < glt->height;height <<= 1);
        for (depth  = 1;depth  < glt->depth ;depth  <<= 1);
 
-       R_MakeResizeBufferBigger(width * height * depth * glt->image->bytesperpixel);
+       R_MakeResizeBufferBigger(width * height * depth * glt->image->sides * glt->image->bytesperpixel);
 
        if (prevbuffer == NULL)
        {
@@ -666,33 +666,35 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
        }
        else
        {
-               if (glt->textype->textype == TEXTYPE_QPALETTE)
+               if (glt->textype->textype == TEXTYPE_PALETTE)
                {
                        // promote paletted to RGBA, so we only have to worry about RGB and
                        // RGBA in the rest of this code
-                       Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth, d_8to24table);
+                       Image_Copy8bitRGBA(prevbuffer, colorconvertbuffer, glt->width * glt->height * glt->depth * glt->image->sides, glt->palette);
                        prevbuffer = colorconvertbuffer;
                }
+       }
 
+       // 3 and 4 are converted by the driver to it's preferred format for the current display mode
+       internalformat = 3;
+       if (glt->flags & TEXF_ALPHA)
+               internalformat = 4;
+
+       // cubemaps contain multiple images and thus get processed a bit differently
+       if (glt->image->texturetype != GLTEXTURETYPE_CUBEMAP)
+       {
                if (glt->width != width || glt->height != height || glt->depth != depth)
                {
                        Image_Resample(prevbuffer, glt->width, glt->height, glt->depth, resizebuffer, width, height, depth, glt->image->bytesperpixel, r_lerpimages.integer);
                        prevbuffer = resizebuffer;
                }
-
-               // apply picmip/max_size limitations
+               // picmip/max_size
                while (width > glt->image->width || height > glt->image->height || depth > glt->image->depth)
                {
                        Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->image->width, glt->image->height, glt->image->depth, glt->image->bytesperpixel);
                        prevbuffer = resizebuffer;
                }
        }
-
-       // 3 and 4 are converted by the driver to it's preferred format for the current display mode
-       internalformat = 3;
-       if (glt->flags & TEXF_ALPHA)
-               internalformat = 4;
-
        mip = 0;
        switch(glt->image->texturetype)
        {
@@ -708,17 +710,6 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
                                qglTexImage1D(GL_TEXTURE_1D, mip++, internalformat, width, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
                                CHECKGLERROR
                        }
-                       qglTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
-                       CHECKGLERROR
-                       qglTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                       CHECKGLERROR
-               }
-               else
-               {
-                       qglTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                       CHECKGLERROR
-                       qglTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                       CHECKGLERROR
                }
                break;
        case GLTEXTURETYPE_2D:
@@ -733,17 +724,6 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
                                qglTexImage2D(GL_TEXTURE_2D, mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
                                CHECKGLERROR
                        }
-                       qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
-                       CHECKGLERROR
-                       qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                       CHECKGLERROR
-               }
-               else
-               {
-                       qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                       CHECKGLERROR
-                       qglTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                       CHECKGLERROR
                }
                break;
        case GLTEXTURETYPE_3D:
@@ -758,17 +738,6 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
                                qglTexImage3D(GL_TEXTURE_3D, mip++, internalformat, width, height, depth, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
                                CHECKGLERROR
                        }
-                       qglTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
-                       CHECKGLERROR
-                       qglTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                       CHECKGLERROR
-               }
-               else
-               {
-                       qglTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                       CHECKGLERROR
-                       qglTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                       CHECKGLERROR
                }
                break;
        case GLTEXTURETYPE_CUBEMAP:
@@ -779,6 +748,18 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
                {
                        prevbuffer = texturebuffer;
                        texturebuffer += width * height * depth * glt->textype->inputbytesperpixel;
+                       if (glt->width != width || glt->height != height || glt->depth != depth)
+                       {
+                               Image_Resample(prevbuffer, glt->width, glt->height, glt->depth, resizebuffer, width, height, depth, glt->image->bytesperpixel, r_lerpimages.integer);
+                               prevbuffer = resizebuffer;
+                       }
+                       // picmip/max_size
+                       while (width > glt->image->width || height > glt->image->height || depth > glt->image->depth)
+                       {
+                               Image_MipReduce(prevbuffer, resizebuffer, &width, &height, &depth, glt->image->width, glt->image->height, glt->image->depth, glt->image->bytesperpixel);
+                               prevbuffer = resizebuffer;
+                       }
+                       mip = 0;
                        qglTexImage2D(cubemapside[i], mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
                        CHECKGLERROR
                        if (glt->flags & TEXF_MIPMAP)
@@ -790,21 +771,11 @@ static void R_Upload(gltexture_t *glt, qbyte *data)
                                        qglTexImage2D(cubemapside[i], mip++, internalformat, width, height, 0, glt->image->glformat, GL_UNSIGNED_BYTE, prevbuffer);
                                        CHECKGLERROR
                                }
-                               qglTexParameteri(cubemapside[i], GL_TEXTURE_MIN_FILTER, gl_filter_min);
-                               CHECKGLERROR
-                               qglTexParameteri(cubemapside[i], GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                               CHECKGLERROR
-                       }
-                       else
-                       {
-                               qglTexParameteri(cubemapside[i], GL_TEXTURE_MIN_FILTER, gl_filter_mag);
-                               CHECKGLERROR
-                               qglTexParameteri(cubemapside[i], GL_TEXTURE_MAG_FILTER, gl_filter_mag);
-                               CHECKGLERROR
                        }
                }
                break;
        }
+       GL_SetupTextureParameters(glt->image->flags, glt->image->texturetype);
 }
 
 static void R_FindImageForTexture(gltexture_t *glt)
@@ -834,9 +805,11 @@ static void R_FindImageForTexture(gltexture_t *glt)
                                continue;
                        if (image->texturetype != glt->texturetype)
                                continue;
+                       if ((image->flags ^ glt->flags) & (TEXF_MIPMAP | TEXF_ALPHA | TEXF_CLAMP))
+                               continue;
                        if (image->glformat != texinfo->glformat || image->glinternalformat != texinfo->glinternalformat)
                                continue;
-                       if (glt->width > image->width || glt->height > image->height)
+                       if (glt->width > image->width || glt->height > image->height || glt->depth > image->depth)
                                continue;
 
                        // got a fragments texture, find a place in it if we can
@@ -878,10 +851,10 @@ static void R_FindImageForTexture(gltexture_t *glt)
                // make sure the created image is big enough for the fragment
                for (image->width = block_size;image->width < glt->width;image->width <<= 1);
                image->height = 1;
-               if (glt->texturetype != GLTEXTURETYPE_1D)
+               if (gltexturetypedimensions[glt->texturetype] >= 2)
                        for (image->height = block_size;image->height < glt->height;image->height <<= 1);
                image->depth = 1;
-               if (glt->texturetype == GLTEXTURETYPE_3D)
+               if (gltexturetypedimensions[glt->texturetype] >= 3)
                        for (image->depth = block_size;image->depth < glt->depth;image->depth <<= 1);
                image->blockallocation = Mem_Alloc(texturemempool, image->width * sizeof(short));
                memset(image->blockallocation, 0, image->width * sizeof(short));
@@ -918,7 +891,7 @@ static void R_FindImageForTexture(gltexture_t *glt)
        image->texturetype = glt->texturetype;
        image->glinternalformat = texinfo->glinternalformat;
        image->glformat = texinfo->glformat;
-       image->flags = (glt->flags & (TEXF_MIPMAP | TEXF_ALPHA)) | GLTEXF_UPLOAD;
+       image->flags = (glt->flags & (TEXF_MIPMAP | TEXF_ALPHA | TEXF_CLAMP)) | GLTEXF_UPLOAD;
        image->bytesperpixel = texinfo->internalbytesperpixel;
        image->sides = image->texturetype == GLTEXTURETYPE_CUBEMAP ? 6 : 1;
        // get a texture number to use
@@ -949,7 +922,7 @@ static void R_UploadTexture (gltexture_t *glt)
                Con_Printf("R_UploadTexture: Texture %s already uploaded and destroyed.  Can not upload original image again.  Uploaded blank texture.\n", glt->identifier);
 }
 
-static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, char *identifier, int width, int height, int depth, int sides, int flags, int textype, int texturetype, qbyte *data)
+static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int depth, int sides, int flags, int textype, int texturetype, const qbyte *data, const unsigned int *palette)
 {
        int i, size;
        gltexture_t *glt;
@@ -981,7 +954,7 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, char *identifier
        // clear the alpha flag if the texture has no transparent pixels
        switch(textype)
        {
-       case TEXTYPE_QPALETTE:
+       case TEXTYPE_PALETTE:
                if (flags & TEXF_ALPHA)
                {
                        flags &= ~TEXF_ALPHA;
@@ -989,7 +962,7 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, char *identifier
                        {
                                for (i = 0;i < size;i++)
                                {
-                                       if (data[i] == 255)
+                                       if (((qbyte *)&palette[data[i]])[3] == 255)
                                        {
                                                flags |= TEXF_ALPHA;
                                                break;
@@ -1041,6 +1014,7 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, char *identifier
        glt->textype = texinfo;
        glt->texturetype = texturetype;
        glt->inputdatasize = size;
+       glt->palette = palette;
 
        if (data)
        {
@@ -1058,29 +1032,24 @@ static rtexture_t *R_SetupTexture(rtexturepool_t *rtexturepool, char *identifier
        return (rtexture_t *)glt;
 }
 
-rtexture_t *R_LoadTexture(rtexturepool_t *rtexturepool, char *identifier, int width, int height, qbyte *data, int textype, int flags)
-{
-       return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, flags, textype, GLTEXTURETYPE_2D, data);
-}
-
-rtexture_t *R_LoadTexture1D(rtexturepool_t *rtexturepool, char *identifier, int width, qbyte *data, int textype, int flags)
+rtexture_t *R_LoadTexture1D(rtexturepool_t *rtexturepool, const char *identifier, int width, const qbyte *data, int textype, int flags, const unsigned int *palette)
 {
-       return R_SetupTexture(rtexturepool, identifier, width, 1, 1, 1, flags, textype, GLTEXTURETYPE_1D, data);
+       return R_SetupTexture(rtexturepool, identifier, width, 1, 1, 1, flags, textype, GLTEXTURETYPE_1D, data, palette);
 }
 
-rtexture_t *R_LoadTexture2D(rtexturepool_t *rtexturepool, char *identifier, int width, int height, qbyte *data, int textype, int flags)
+rtexture_t *R_LoadTexture2D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, const qbyte *data, int textype, int flags, const unsigned int *palette)
 {
-       return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, flags, textype, GLTEXTURETYPE_2D, data);
+       return R_SetupTexture(rtexturepool, identifier, width, height, 1, 1, flags, textype, GLTEXTURETYPE_2D, data, palette);
 }
 
-rtexture_t *R_LoadTexture3D(rtexturepool_t *rtexturepool, char *identifier, int width, int height, int depth, qbyte *data, int textype, int flags)
+rtexture_t *R_LoadTexture3D(rtexturepool_t *rtexturepool, const char *identifier, int width, int height, int depth, const qbyte *data, int textype, int flags, const unsigned int *palette)
 {
-       return R_SetupTexture(rtexturepool, identifier, width, height, depth, 1, flags, textype, GLTEXTURETYPE_3D, data);
+       return R_SetupTexture(rtexturepool, identifier, width, height, depth, 1, flags, textype, GLTEXTURETYPE_3D, data, palette);
 }
 
-rtexture_t *R_LoadTextureCubeMap(rtexturepool_t *rtexturepool, char *identifier, int width, qbyte *data, int textype, int flags)
+rtexture_t *R_LoadTextureCubeMap(rtexturepool_t *rtexturepool, const char *identifier, int width, const qbyte *data, int textype, int flags, const unsigned int *palette)
 {
-       return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, flags, textype, GLTEXTURETYPE_CUBEMAP, data);
+       return R_SetupTexture(rtexturepool, identifier, width, width, 1, 6, flags, textype, GLTEXTURETYPE_CUBEMAP, data, palette);
 }
 
 int R_TextureHasAlpha(rtexture_t *rt)