diff options
Diffstat (limited to 'src/mesa/main/texcompress_s3tc_tmp.h')
| -rw-r--r-- | src/mesa/main/texcompress_s3tc_tmp.h | 80 |
1 files changed, 0 insertions, 80 deletions
diff --git a/src/mesa/main/texcompress_s3tc_tmp.h b/src/mesa/main/texcompress_s3tc_tmp.h index b67b7a299e7..57bbf7e0aef 100644 --- a/src/mesa/main/texcompress_s3tc_tmp.h +++ b/src/mesa/main/texcompress_s3tc_tmp.h @@ -150,26 +150,9 @@ void fetch_2d_texel_rgba_dxt3(GLint srcRowStride, const GLubyte *pixdata, GLchan *rgba = (GLchan *) texel; const GLubyte *blksrc = (pixdata + ((srcRowStride + 3) / 4 * (j / 4) + (i / 4)) * 16); -#if 0 - /* Simple 32bit version. */ -/* that's pretty brain-dead for a single pixel, isn't it? */ - const GLubyte bit_pos = 4 * ((j&3) * 4 + (i&3)); - const GLuint alpha_low = blksrc[0] | (blksrc[1] << 8) | (blksrc[2] << 16) | (blksrc[3] << 24); - const GLuint alpha_high = blksrc[4] | (blksrc[5] << 8) | (blksrc[6] << 16) | (blksrc[7] << 24); - - dxt135_decode_imageblock(blksrc + 8, (i&3), (j&3), 2, texel); - if (bit_pos < 32) - rgba[ACOMP] = UBYTE_TO_CHAN( (GLubyte)(EXP4TO8((alpha_low >> bit_pos) & 15)) ); - else - rgba[ACOMP] = UBYTE_TO_CHAN( (GLubyte)(EXP4TO8((alpha_high >> (bit_pos - 32)) & 15)) ); -#endif -#if 1 -/* TODO test this! */ const GLubyte anibble = (blksrc[((j&3) * 4 + (i&3)) / 2] >> (4 * (i&1))) & 0xf; dxt135_decode_imageblock(blksrc + 8, (i&3), (j&3), 2, texel); rgba[ACOMP] = UBYTE_TO_CHAN( (GLubyte)(EXP4TO8(anibble)) ); -#endif - } void fetch_2d_texel_rgba_dxt5(GLint srcRowStride, const GLubyte *pixdata, @@ -183,74 +166,12 @@ void fetch_2d_texel_rgba_dxt5(GLint srcRowStride, const GLubyte *pixdata, const GLubyte *blksrc = (pixdata + ((srcRowStride + 3) / 4 * (j / 4) + (i / 4)) * 16); const GLubyte alpha0 = blksrc[0]; const GLubyte alpha1 = blksrc[1]; -#if 0 - const GLubyte bit_pos = 3 * ((j&3) * 4 + (i&3)); - /* simple 32bit version */ - const GLuint bits_low = blksrc[2] | (blksrc[3] << 8) | (blksrc[4] << 16) | (blksrc[5] << 24); - const GLuint bits_high = blksrc[6] | (blksrc[7] << 8); - GLubyte code; - - if (bit_pos < 30) - code = (GLubyte) ((bits_low >> bit_pos) & 7); - else if (bit_pos == 30) - code = (GLubyte) ((bits_low >> 30) & 3) | ((bits_high << 2) & 4); - else - code = (GLubyte) ((bits_high >> (bit_pos - 32)) & 7); -#endif -#if 1 -/* TODO test this! */ const GLubyte bit_pos = ((j&3) * 4 + (i&3)) * 3; const GLubyte acodelow = blksrc[2 + bit_pos / 8]; const GLubyte acodehigh = blksrc[3 + bit_pos / 8]; const GLubyte code = (acodelow >> (bit_pos & 0x7) | (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7; -#endif dxt135_decode_imageblock(blksrc + 8, (i&3), (j&3), 2, texel); -#if 0 - if (alpha0 > alpha1) { - switch (code) { - case 0: - rgba[ACOMP] = UBYTE_TO_CHAN( alpha0 ); - break; - case 1: - rgba[ACOMP] = UBYTE_TO_CHAN( alpha1 ); - break; - case 2: - case 3: - case 4: - case 5: - case 6: - case 7: - rgba[ACOMP] = UBYTE_TO_CHAN( ((alpha0 * (8 - code) + (alpha1 * (code - 1))) / 7) ); - break; - } - } - else { - switch (code) { - case 0: - rgba[ACOMP] = UBYTE_TO_CHAN( alpha0 ); - break; - case 1: - rgba[ACOMP] = UBYTE_TO_CHAN( alpha1 ); - break; - case 2: - case 3: - case 4: - case 5: - rgba[ACOMP] = UBYTE_TO_CHAN( ((alpha0 * (6 - code) + (alpha1 * (code - 1))) / 5) ); - break; - case 6: - rgba[ACOMP] = 0; - break; - case 7: - rgba[ACOMP] = CHAN_MAX; - break; - } - } -#endif -/* not sure. Which version is faster? */ -#if 1 -/* TODO test this */ if (code == 0) rgba[ACOMP] = UBYTE_TO_CHAN( alpha0 ); else if (code == 1) @@ -263,7 +184,6 @@ void fetch_2d_texel_rgba_dxt5(GLint srcRowStride, const GLubyte *pixdata, rgba[ACOMP] = 0; else rgba[ACOMP] = CHAN_MAX; -#endif } |