diff options
author | Brian Paul <brian.paul@tungstengraphics.com> | 2000-02-04 16:23:47 +0000 |
---|---|---|
committer | Brian Paul <brian.paul@tungstengraphics.com> | 2000-02-04 16:23:47 +0000 |
commit | 38a683816bb00347d6e34c4b3215e57df8c9c870 (patch) | |
tree | bba757932bf0b448fd379f18be2d4aac77d29cd9 /src/mesa | |
parent | b13fd0bc9e36379af82f100f8403990b98d791c4 (diff) |
added support for GL_RGB5_A1 internal texture format (Eero Pajarre)
Diffstat (limited to 'src/mesa')
-rw-r--r-- | src/mesa/drivers/glide/fxddtex.c | 96 |
1 files changed, 89 insertions, 7 deletions
diff --git a/src/mesa/drivers/glide/fxddtex.c b/src/mesa/drivers/glide/fxddtex.c index 747d2555c7..0e1b1ea1da 100644 --- a/src/mesa/drivers/glide/fxddtex.c +++ b/src/mesa/drivers/glide/fxddtex.c @@ -659,6 +659,10 @@ int fxTexGetInfo(int w, int h, GrLOD_t *lodlevel, GrAspectRatio_t *ar, return 1; } +/* + * Given an OpenGL internal texture format, return the corresponding + * Glide internal texture format and base texture format. + */ void fxTexGetFormat(GLenum glformat, GrTextureFormat_t *tfmt, GLint *ifmt) { switch(glformat) { @@ -724,7 +728,6 @@ void fxTexGetFormat(GLenum glformat, GrTextureFormat_t *tfmt, GLint *ifmt) case GL_RGBA: case GL_RGBA2: case GL_RGBA4: - case GL_RGB5_A1: case GL_RGBA8: case GL_RGB10_A2: case GL_RGBA12: @@ -734,6 +737,12 @@ void fxTexGetFormat(GLenum glformat, GrTextureFormat_t *tfmt, GLint *ifmt) if(ifmt) (*ifmt)=GL_RGBA; break; + case GL_RGB5_A1: + if(tfmt) + (*tfmt)=GR_TEXFMT_ARGB_1555; + if(ifmt) + (*ifmt)=GL_RGBA; + break; case GL_COLOR_INDEX: case GL_COLOR_INDEX1_EXT: case GL_COLOR_INDEX2_EXT: @@ -961,7 +970,7 @@ static void fxTexBuildImageMap(const struct gl_texture_image *image, if(wscale==hscale==1) { int i=0; int lenght=h*w; - unsigned short r,g,b; + unsigned int r,g,b; while(i++<lenght) { r=*data++; @@ -973,7 +982,7 @@ static void fxTexBuildImageMap(const struct gl_texture_image *image, ((0xf8 & b) >> 3); } } else { - unsigned short r,g,b; + unsigned int r,g,b; for(y=0;y<h;y++) for(x=0;x<w;x++) { @@ -992,7 +1001,6 @@ static void fxTexBuildImageMap(const struct gl_texture_image *image, case GL_RGBA: case GL_RGBA2: case GL_RGBA4: - case GL_RGB5_A1: case GL_RGBA8: case GL_RGB10_A2: case GL_RGBA12: @@ -1011,7 +1019,7 @@ static void fxTexBuildImageMap(const struct gl_texture_image *image, if(wscale==hscale==1) { int i=0; int lenght=h*w; - unsigned short r,g,b,a; + unsigned int r,g,b,a; while(i++<lenght) { r=*data++; @@ -1025,7 +1033,7 @@ static void fxTexBuildImageMap(const struct gl_texture_image *image, ((0xf0 & b) >> 4); } } else { - unsigned short r,g,b,a; + unsigned int r,g,b,a; for(y=0;y<h;y++) for(x=0;x<w;x++) { @@ -1042,6 +1050,51 @@ static void fxTexBuildImageMap(const struct gl_texture_image *image, } } break; + case GL_RGB5_A1: + (*istranslate)=GL_TRUE; + + if(!(*dest)) { + if(!((*dest)=src=(unsigned short *)malloc(sizeof(unsigned short)*w*h))) { + fprintf(stderr,"fx Driver: out of memory !\n"); + fxCloseHardware(); + exit(-1); + } + } else + src=(*dest); + + if(wscale==hscale==1) { + int i=0; + int lenght=h*w; + unsigned r,g,b,a; + + while(i++<lenght) { + r=*data++; + g=*data++; + b=*data++; + a=*data++; + *src++=((0x80 & a) << 8) | + ((0xf8 & r) << 7) | + ((0xf8 & g) << 2) | + ((0xf8 & b) >> 3); + } + } else { + unsigned r,g,b,a; + + for(y=0;y<h;y++) + for(x=0;x<w;x++) { + idx=(x/wscale+(y/hscale)*(w/wscale))*4; + r=data[idx]; + g=data[idx+1]; + b=data[idx+2]; + a=data[idx+3]; + + src[x+y*w]=((0x80 & a) << 8) | + ((0xf8 & r) << 7) | + ((0xf8 & g) << 2) | + ((0xf8 & b) >> 3); + } + } + break; default: fprintf(stderr,"fx Driver: wrong internalFormat in texbuildimagemap()\n"); fxCloseHardware(); @@ -1231,7 +1284,6 @@ static void fxTexBuildSubImageMap(const struct gl_texture_image *image, case GL_RGBA: case GL_RGBA2: case GL_RGBA4: - case GL_RGB5_A1: case GL_RGBA8: case GL_RGB10_A2: case GL_RGBA12: @@ -1264,6 +1316,36 @@ static void fxTexBuildSubImageMap(const struct gl_texture_image *image, } } break; + case GL_RGB5_A1: + { + int x,y; + unsigned char *src; + unsigned short *dst,r,g,b,a; + int simgw,dimgw; + + src=(unsigned char *)(image->Data+(yoffset*image->Width+xoffset)*4); + dst=destimg+(yoffset*image->Width+xoffset); + + simgw=(image->Width-width)*4; + dimgw=image->Width-width; + for(y=0;y<height;y++) { + for(x=0;x<width;x++) { + r=*src++; + g=*src++; + b=*src++; + a=*src++; + *dst++= + ((0x80 & a) << 8) | + ((0xf8 & r) << 7) | + ((0xf8 & g) << 2) | + ((0xf8 & b) >> 3); + } + + src += simgw; + dst += dimgw; + } + } + break; default: fprintf(stderr,"fx Driver: wrong internalFormat in fxTexBuildSubImageMap()\n"); fxCloseHardware(); |