<div dir="ltr"><div>Haven't looked at it too carefully because it mostly looks like a rename. Assuming it builds and you've run piglit: </div>Reviewed-by: Jason Ekstrand <<a href="mailto:jason.ekstrand@intel.com">jason.ekstrand@intel.com</a>> </div><div class="gmail_extra"> <div class="gmail_quote">On Mon, Sep 15, 2014 at 10:40 PM, Dave Airlie <<a href="mailto:airlied@gmail.com" target="_blank">airlied@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">From: Dave Airlie <<a href="mailto:airlied@redhat.com">airlied@redhat.com</a>> This was being shared using a ../../ get out of gallium into mesa, and I swore when I did it I'd fix things when we got a util dir, we did, so I have. Signed-off-by: Dave Airlie <<a href="mailto:airlied@redhat.com">airlied@redhat.com</a>> --- src/gallium/auxiliary/util/u_format_latc.c | 72 ++--- src/gallium/auxiliary/util/u_format_rgtc.c | 92 ++----- src/mesa/main/texcompress_rgtc.c | 76 ++---- src/mesa/main/texcompress_rgtc_tmp.h | 418 ----------------------------- src/util/Makefile.sources | 3 +- src/util/rgtc.c | 59 ++++ src/util/rgtc.h | 39 +++ src/util/texcompress_rgtc_tmp.h | 418 +++++++++++++++++++++++++++++ 8 files changed, 583 insertions(+), 594 deletions(-) delete mode 100644 src/mesa/main/texcompress_rgtc_tmp.h create mode 100644 src/util/rgtc.c create mode 100644 src/util/rgtc.h create mode 100644 src/util/texcompress_rgtc_tmp.h diff --git a/src/gallium/auxiliary/util/u_format_latc.c b/src/gallium/auxiliary/util/u_format_latc.c index caab7e8..31d72b5 100644 --- a/src/gallium/auxiliary/util/u_format_latc.c +++ b/src/gallium/auxiliary/util/u_format_latc.c @@ -27,27 +27,16 @@ #include "u_format.h" #include "u_format_rgtc.h" #include "u_format_latc.h" - -static void u_format_unsigned_encode_rgtc_ubyte(uint8_t *blkaddr, uint8_t srccolors[4][4], - int numxpixels, int numypixels); - -static void u_format_unsigned_fetch_texel_rgtc(unsigned srcRowStride, const uint8_t *pixdata, - unsigned i, unsigned j, uint8_t *value, unsigned comps); - -static void u_format_signed_encode_rgtc_ubyte(int8_t *blkaddr, int8_t srccolors[4][4], - int numxpixels, int numypixels); - -static void u_format_signed_fetch_texel_rgtc(unsigned srcRowStride, const int8_t *pixdata, - unsigned i, unsigned j, int8_t *value, unsigned comps); +#include "util/rgtc.h" void util_format_latc1_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j) { /* Fix warnings here: */ - (void) u_format_unsigned_encode_rgtc_ubyte; - (void) u_format_signed_encode_rgtc_ubyte; + (void) util_format_unsigned_encode_rgtc_ubyte; + (void) util_format_signed_encode_rgtc_ubyte; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1); dst[1] = dst[0]; dst[2] = dst[0]; dst[3] = 255; @@ -79,7 +68,7 @@ util_format_latc1_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, c for(i = 0; i < 4; ++i) { float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4; uint8_t tmp_r; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); dst[0] = dst[1] = dst[2] = ubyte_to_float(tmp_r); @@ -103,7 +92,7 @@ util_format_latc1_unorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigne { uint8_t tmp_r; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); dst[0] = dst[1] = dst[2] = ubyte_to_float(tmp_r); @@ -147,7 +136,7 @@ util_format_latc1_snorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, c for(i = 0; i < 4; ++i) { float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4; int8_t tmp_r; - u_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); + util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); dst[0] = dst[1] = dst[2] = byte_to_float_tex(tmp_r); @@ -165,7 +154,7 @@ util_format_latc1_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigne { int8_t tmp_r; - u_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 1); + util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 1); dst[0] = dst[1] = dst[2] = byte_to_float_tex(tmp_r); @@ -176,10 +165,10 @@ util_format_latc1_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigne void util_format_latc2_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j) { - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2); dst[1] = dst[0]; dst[2] = dst[0]; - u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 3, 2); + util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 3, 2); } void @@ -213,8 +202,8 @@ util_format_latc2_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, c for(i = 0; i < 4; ++i) { float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4; uint8_t tmp_r, tmp_g; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); - u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); + util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); dst[0] = dst[1] = dst[2] = ubyte_to_float(tmp_r); @@ -232,8 +221,8 @@ util_format_latc2_unorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigne { uint8_t tmp_r, tmp_g; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); - u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); + util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); dst[0] = dst[1] = dst[2] = ubyte_to_float(tmp_r); @@ -272,8 +261,8 @@ util_format_latc2_snorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, c for(i = 0; i < 4; ++i) { float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4; int8_t tmp_r, tmp_g; - u_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); - u_format_signed_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); + util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); + util_format_signed_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); dst[0] = dst[1] = dst[2] = byte_to_float_tex(tmp_r); @@ -297,36 +286,11 @@ util_format_latc2_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigne { int8_t tmp_r, tmp_g; - u_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 2); - u_format_signed_fetch_texel_rgtc(0, (int8_t *)src + 8, i, j, &tmp_g, 2); + util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 2); + util_format_signed_fetch_texel_rgtc(0, (int8_t *)src + 8, i, j, &tmp_g, 2); dst[0] = dst[1] = dst[2] = byte_to_float_tex(tmp_r); dst[3] = byte_to_float_tex(tmp_g); } - -#define TAG(x) u_format_unsigned_##x -#define TYPE uint8_t -#define T_MIN 0 -#define T_MAX 255 - -#include "../../../mesa/main/texcompress_rgtc_tmp.h" - -#undef TYPE -#undef TAG -#undef T_MIN -#undef T_MAX - - -#define TAG(x) u_format_signed_##x -#define TYPE int8_t -#define T_MIN (int8_t)-128 -#define T_MAX (int8_t)127 - -#include "../../../mesa/main/texcompress_rgtc_tmp.h" - -#undef TYPE -#undef TAG -#undef T_MIN -#undef T_MAX diff --git a/src/gallium/auxiliary/util/u_format_rgtc.c b/src/gallium/auxiliary/util/u_format_rgtc.c index 758e337..1596917 100644 --- a/src/gallium/auxiliary/util/u_format_rgtc.c +++ b/src/gallium/auxiliary/util/u_format_rgtc.c @@ -26,23 +26,12 @@ #include "u_math.h" #include "u_format.h" #include "u_format_rgtc.h" - -static void u_format_unsigned_encode_rgtc_ubyte(uint8_t *blkaddr, uint8_t srccolors[4][4], - int numxpixels, int numypixels); - -static void u_format_unsigned_fetch_texel_rgtc(unsigned srcRowStride, const uint8_t *pixdata, - unsigned i, unsigned j, uint8_t *value, unsigned comps); - -static void u_format_signed_encode_rgtc_ubyte(int8_t *blkaddr, int8_t srccolors[4][4], - int numxpixels, int numypixels); - -static void u_format_signed_fetch_texel_rgtc(unsigned srcRowStride, const int8_t *pixdata, - unsigned i, unsigned j, int8_t *value, unsigned comps); +#include "util/rgtc.h" void util_format_rgtc1_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j) { - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1); dst[1] = 0; dst[2] = 0; dst[3] = 255; @@ -61,7 +50,7 @@ util_format_rgtc1_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride for(j = 0; j < bh; ++j) { for(i = 0; i < bw; ++i) { uint8_t *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*comps; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 1); dst[1] = 0; dst[2] = 0; dst[3] = 255; @@ -89,7 +78,7 @@ util_format_rgtc1_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, tmp[j][i] = src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4]; } } - u_format_unsigned_encode_rgtc_ubyte(dst, tmp, 4, 4); + util_format_unsigned_encode_rgtc_ubyte(dst, tmp, 4, 4); dst += bytes_per_block; } dst_row += dst_stride / sizeof(*dst_row); @@ -108,7 +97,7 @@ util_format_rgtc1_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, c for(i = 0; i < 4; ++i) { float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4; uint8_t tmp_r; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); dst[0] = ubyte_to_float(tmp_r); dst[1] = 0.0; dst[2] = 0.0; @@ -136,7 +125,7 @@ util_format_rgtc1_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, c tmp[j][i] = float_to_ubyte(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4]); } } - u_format_unsigned_encode_rgtc_ubyte(dst, tmp, 4, 4); + util_format_unsigned_encode_rgtc_ubyte(dst, tmp, 4, 4); dst += bytes_per_block; } dst_row += dst_stride / sizeof(*dst_row); @@ -147,7 +136,7 @@ void util_format_rgtc1_unorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j) { uint8_t tmp_r; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); dst[0] = ubyte_to_float(tmp_r); dst[1] = 0.0; dst[2] = 0.0; @@ -187,7 +176,7 @@ util_format_rgtc1_snorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, c tmp[j][i] = float_to_byte_tex(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4]); } } - u_format_signed_encode_rgtc_ubyte(dst, tmp, 4, 4); + util_format_signed_encode_rgtc_ubyte(dst, tmp, 4, 4); dst += bytes_per_block; } dst_row += dst_stride / sizeof(*dst_row); @@ -206,7 +195,7 @@ util_format_rgtc1_snorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, c for(i = 0; i < 4; ++i) { float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4; int8_t tmp_r; - u_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); + util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 1); dst[0] = byte_to_float_tex(tmp_r); dst[1] = 0.0; dst[2] = 0.0; @@ -223,7 +212,7 @@ void util_format_rgtc1_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j) { int8_t tmp_r; - u_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 1); + util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 1); dst[0] = byte_to_float_tex(tmp_r); dst[1] = 0.0; dst[2] = 0.0; @@ -234,8 +223,8 @@ util_format_rgtc1_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigne void util_format_rgtc2_unorm_fetch_rgba_8unorm(uint8_t *dst, const uint8_t *src, unsigned i, unsigned j) { - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2); - u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 1, 2); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2); + util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 1, 2); dst[2] = 0; dst[3] = 255; } @@ -253,8 +242,8 @@ util_format_rgtc2_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride for(j = 0; j < bh; ++j) { for(i = 0; i < bw; ++i) { uint8_t *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*comps; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2); - u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 1, 2); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, dst, 2); + util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, dst + 1, 2); dst[2] = 0; dst[3] = 255; } @@ -282,8 +271,8 @@ util_format_rgtc2_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride, tmp_g[j][i] = src_row[((y + j)*src_stride/sizeof(*src_row) + (x + i)*4) + 1]; } } - u_format_unsigned_encode_rgtc_ubyte(dst, tmp_r, 4, 4); - u_format_unsigned_encode_rgtc_ubyte(dst + 8, tmp_g, 4, 4); + util_format_unsigned_encode_rgtc_ubyte(dst, tmp_r, 4, 4); + util_format_unsigned_encode_rgtc_ubyte(dst + 8, tmp_g, 4, 4); dst += bytes_per_block; } dst_row += dst_stride / sizeof(*dst_row); @@ -307,8 +296,8 @@ util_format_rxtc2_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, c tmp_g[j][i] = float_to_ubyte(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4 + chan2off]); } } - u_format_unsigned_encode_rgtc_ubyte(dst, tmp_r, 4, 4); - u_format_unsigned_encode_rgtc_ubyte(dst + 8, tmp_g, 4, 4); + util_format_unsigned_encode_rgtc_ubyte(dst, tmp_r, 4, 4); + util_format_unsigned_encode_rgtc_ubyte(dst + 8, tmp_g, 4, 4); dst += bytes_per_block; } dst_row += dst_stride / sizeof(*dst_row); @@ -333,8 +322,8 @@ util_format_rgtc2_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, c for(i = 0; i < 4; ++i) { float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4; uint8_t tmp_r, tmp_g; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); - u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); + util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); dst[0] = ubyte_to_float(tmp_r); dst[1] = ubyte_to_float(tmp_g); dst[2] = 0.0; @@ -351,8 +340,8 @@ void util_format_rgtc2_unorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j) { uint8_t tmp_r, tmp_g; - u_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); - u_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); + util_format_unsigned_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); + util_format_unsigned_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); dst[0] = ubyte_to_float(tmp_r); dst[1] = ubyte_to_float(tmp_g); dst[2] = 0.0; @@ -390,8 +379,8 @@ util_format_rgtc2_snorm_unpack_rgba_float(float *dst_row, unsigned dst_stride, c for(i = 0; i < 4; ++i) { float *dst = dst_row + (y + j)*dst_stride/sizeof(*dst_row) + (x + i)*4; int8_t tmp_r, tmp_g; - u_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); - u_format_signed_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); + util_format_signed_fetch_texel_rgtc(0, src, i, j, &tmp_r, 2); + util_format_signed_fetch_texel_rgtc(0, src + 8, i, j, &tmp_g, 2); dst[0] = byte_to_float_tex(tmp_r); dst[1] = byte_to_float_tex(tmp_g); dst[2] = 0.0; @@ -421,8 +410,8 @@ util_format_rxtc2_snorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride, c tmp_g[j][i] = float_to_byte_tex(src_row[(y + j)*src_stride/sizeof(*src_row) + (x + i)*4 + chan2off]); } } - u_format_signed_encode_rgtc_ubyte(dst, tmp_r, 4, 4); - u_format_signed_encode_rgtc_ubyte(dst + 8, tmp_g, 4, 4); + util_format_signed_encode_rgtc_ubyte(dst, tmp_r, 4, 4); + util_format_signed_encode_rgtc_ubyte(dst + 8, tmp_g, 4, 4); dst += bytes_per_block; } dst_row += dst_stride / sizeof(*dst_row); @@ -439,36 +428,11 @@ void util_format_rgtc2_snorm_fetch_rgba_float(float *dst, const uint8_t *src, unsigned i, unsigned j) { int8_t tmp_r, tmp_g; - u_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 2); - u_format_signed_fetch_texel_rgtc(0, (int8_t *)src + 8, i, j, &tmp_g, 2); + util_format_signed_fetch_texel_rgtc(0, (int8_t *)src, i, j, &tmp_r, 2); + util_format_signed_fetch_texel_rgtc(0, (int8_t *)src + 8, i, j, &tmp_g, 2); dst[0] = byte_to_float_tex(tmp_r); dst[1] = byte_to_float_tex(tmp_g); dst[2] = 0.0; dst[3] = 1.0; } - -#define TAG(x) u_format_unsigned_##x -#define TYPE uint8_t -#define T_MIN 0 -#define T_MAX 255 - -#include "../../../mesa/main/texcompress_rgtc_tmp.h" - -#undef TYPE -#undef TAG -#undef T_MIN -#undef T_MAX - - -#define TAG(x) u_format_signed_##x -#define TYPE int8_t -#define T_MIN (int8_t)-128 -#define T_MAX (int8_t)127 - -#include "../../../mesa/main/texcompress_rgtc_tmp.h" - -#undef TYPE -#undef TAG -#undef T_MIN -#undef T_MAX diff --git a/src/mesa/main/texcompress_rgtc.c b/src/mesa/main/texcompress_rgtc.c index 1012699..c8325c3 100644 --- a/src/mesa/main/texcompress_rgtc.c +++ b/src/mesa/main/texcompress_rgtc.c @@ -40,23 +40,13 @@ #include "macros.h" #include "mipmap.h" #include "texcompress.h" +#include "util/rgtc.h" #include "texcompress_rgtc.h" #include "texstore.h" #define RGTC_DEBUG 0 -static void unsigned_encode_rgtc_ubyte(GLubyte *blkaddr, GLubyte srccolors[4][4], - GLint numxpixels, GLint numypixels); -static void signed_encode_rgtc_ubyte(GLbyte *blkaddr, GLbyte srccolors[4][4], - GLint numxpixels, GLint numypixels); - -static void unsigned_fetch_texel_rgtc(unsigned srcRowStride, const GLubyte *pixdata, - unsigned i, unsigned j, GLubyte *value, unsigned comps); - -static void signed_fetch_texel_rgtc(unsigned srcRowStride, const GLbyte *pixdata, - unsigned i, unsigned j, GLbyte *value, unsigned comps); - static void extractsrc_u( GLubyte srcpixels[4][4], const GLubyte *srcaddr, GLint srcRowStride, GLint numxpixels, GLint numypixels, GLint comps) { @@ -121,7 +111,7 @@ _mesa_texstore_red_rgtc1(TEXSTORE_PARAMS) if (srcWidth > i + 3) numxpixels = 4; else numxpixels = srcWidth - i; extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1); - unsigned_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); + util_format_unsigned_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); srcaddr += numxpixels; blkaddr += 8; } @@ -168,7 +158,7 @@ _mesa_texstore_signed_red_rgtc1(TEXSTORE_PARAMS) if (srcWidth > i + 3) numxpixels = 4; else numxpixels = srcWidth - i; extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 1); - signed_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); + util_format_signed_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); srcaddr += numxpixels; blkaddr += 8; } @@ -216,11 +206,11 @@ _mesa_texstore_rg_rgtc2(TEXSTORE_PARAMS) if (srcWidth > i + 3) numxpixels = 4; else numxpixels = srcWidth - i; extractsrc_u(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2); - unsigned_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); + util_format_unsigned_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); blkaddr += 8; extractsrc_u(srcpixels, (GLubyte *)srcaddr + 1, srcWidth, numxpixels, numypixels, 2); - unsigned_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); + util_format_unsigned_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); blkaddr += 8; @@ -271,11 +261,11 @@ _mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS) else numxpixels = srcWidth - i; extractsrc_s(srcpixels, srcaddr, srcWidth, numxpixels, numypixels, 2); - signed_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); + util_format_signed_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); blkaddr += 8; extractsrc_s(srcpixels, srcaddr + 1, srcWidth, numxpixels, numypixels, 2); - signed_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); + util_format_signed_encode_rgtc_ubyte(blkaddr, srcpixels, numxpixels, numypixels); blkaddr += 8; srcaddr += numxpixels * 2; @@ -289,40 +279,12 @@ _mesa_texstore_signed_rg_rgtc2(TEXSTORE_PARAMS) return GL_TRUE; } - -#define TAG(x) unsigned_##x - -#define TYPE GLubyte -#define T_MIN 0 -#define T_MAX 0xff - -#include "texcompress_rgtc_tmp.h" - -#undef TAG -#undef TYPE -#undef T_MIN -#undef T_MAX - -#define TAG(x) signed_##x -#define TYPE GLbyte -#define T_MIN (GLbyte)-128 -#define T_MAX (GLbyte)127 - -#include "texcompress_rgtc_tmp.h" - -#undef TAG -#undef TYPE -#undef T_MIN -#undef T_MAX - - - static void fetch_red_rgtc1(const GLubyte *map, GLint rowStride, GLint i, GLint j, GLfloat *texel) { GLubyte red; - unsigned_fetch_texel_rgtc(rowStride, map, i, j, &red, 1); + util_format_unsigned_fetch_texel_rgtc(rowStride, map, i, j, &red, 1); texel[RCOMP] = UBYTE_TO_FLOAT(red); texel[GCOMP] = 0.0; texel[BCOMP] = 0.0; @@ -334,7 +296,7 @@ fetch_l_latc1(const GLubyte *map, GLint rowStride, GLint i, GLint j, GLfloat *texel) { GLubyte red; - unsigned_fetch_texel_rgtc(rowStride, map, i, j, &red, 1); + util_format_unsigned_fetch_texel_rgtc(rowStride, map, i, j, &red, 1); texel[RCOMP] = texel[GCOMP] = texel[BCOMP] = UBYTE_TO_FLOAT(red); @@ -346,7 +308,7 @@ fetch_signed_red_rgtc1(const GLubyte *map, GLint rowStride, GLint i, GLint j, GLfloat *texel) { GLbyte red; - signed_fetch_texel_rgtc(rowStride, (const GLbyte *) map, + util_format_signed_fetch_texel_rgtc(rowStride, (const GLbyte *) map, i, j, &red, 1); texel[RCOMP] = BYTE_TO_FLOAT_TEX(red); texel[GCOMP] = 0.0; @@ -359,7 +321,7 @@ fetch_signed_l_latc1(const GLubyte *map, GLint rowStride, GLint i, GLint j, GLfloat *texel) { GLbyte red; - signed_fetch_texel_rgtc(rowStride, (GLbyte *) map, + util_format_signed_fetch_texel_rgtc(rowStride, (GLbyte *) map, i, j, &red, 1); texel[RCOMP] = texel[GCOMP] = @@ -372,10 +334,10 @@ fetch_rg_rgtc2(const GLubyte *map, GLint rowStride, GLint i, GLint j, GLfloat *texel) { GLubyte red, green; - unsigned_fetch_texel_rgtc(rowStride, + util_format_unsigned_fetch_texel_rgtc(rowStride, map, i, j, &red, 2); - unsigned_fetch_texel_rgtc(rowStride, + util_format_unsigned_fetch_texel_rgtc(rowStride, map + 8, i, j, &green, 2); texel[RCOMP] = UBYTE_TO_FLOAT(red); @@ -389,10 +351,10 @@ fetch_la_latc2(const GLubyte *map, GLint rowStride, GLint i, GLint j, GLfloat *texel) { GLubyte red, green; - unsigned_fetch_texel_rgtc(rowStride, + util_format_unsigned_fetch_texel_rgtc(rowStride, map, i, j, &red, 2); - unsigned_fetch_texel_rgtc(rowStride, + util_format_unsigned_fetch_texel_rgtc(rowStride, map + 8, i, j, &green, 2); texel[RCOMP] = @@ -407,10 +369,10 @@ fetch_signed_rg_rgtc2(const GLubyte *map, GLint rowStride, GLint i, GLint j, GLfloat *texel) { GLbyte red, green; - signed_fetch_texel_rgtc(rowStride, + util_format_signed_fetch_texel_rgtc(rowStride, (GLbyte *) map, i, j, &red, 2); - signed_fetch_texel_rgtc(rowStride, + util_format_signed_fetch_texel_rgtc(rowStride, (GLbyte *) map + 8, i, j, &green, 2); texel[RCOMP] = BYTE_TO_FLOAT_TEX(red); @@ -425,10 +387,10 @@ fetch_signed_la_latc2(const GLubyte *map, GLint rowStride, GLint i, GLint j, GLfloat *texel) { GLbyte red, green; - signed_fetch_texel_rgtc(rowStride, + util_format_signed_fetch_texel_rgtc(rowStride, (GLbyte *) map, i, j, &red, 2); - signed_fetch_texel_rgtc(rowStride, + util_format_signed_fetch_texel_rgtc(rowStride, (GLbyte *) map + 8, i, j, &green, 2); texel[RCOMP] = diff --git a/src/mesa/main/texcompress_rgtc_tmp.h b/src/mesa/main/texcompress_rgtc_tmp.h deleted file mode 100644 index 5fa9de6..0000000 --- a/src/mesa/main/texcompress_rgtc_tmp.h +++ /dev/null @@ -1,418 +0,0 @@ -/* - * Copyright (C) 2011 Red Hat Inc. - * - * block compression parts are: - * Copyright (C) 2004 Roland Scheidegger All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Author: - * Dave Airlie - */ - -/* included by texcompress_rgtc to define byte/ubyte compressors */ - -static void TAG(fetch_texel_rgtc)(unsigned srcRowStride, const TYPE *pixdata, - unsigned i, unsigned j, TYPE *value, unsigned comps) -{ - TYPE decode; - const TYPE *blksrc = (pixdata + ((srcRowStride + 3) / 4 * (j / 4) + (i / 4)) * 8 * comps); - const TYPE alpha0 = blksrc[0]; - const TYPE alpha1 = blksrc[1]; - const char bit_pos = ((j&3) * 4 + (i&3)) * 3; - const unsigned char acodelow = blksrc[2 + bit_pos / 8]; - const unsigned char acodehigh = (3 + bit_pos / 8) < 8 ? blksrc[3 + bit_pos / 8] : 0; - const unsigned char code = (acodelow >> (bit_pos & 0x7) | - (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7; - - if (code == 0) - decode = alpha0; - else if (code == 1) - decode = alpha1; - else if (alpha0 > alpha1) - decode = ((alpha0 * (8 - code) + (alpha1 * (code - 1))) / 7); - else if (code < 6) - decode = ((alpha0 * (6 - code) + (alpha1 * (code - 1))) / 5); - else if (code == 6) - decode = T_MIN; - else - decode = T_MAX; - - *value = decode; -} - -static void TAG(write_rgtc_encoded_channel)(TYPE *blkaddr, - TYPE alphabase1, - TYPE alphabase2, - TYPE alphaenc[16]) -{ - *blkaddr++ = alphabase1; - *blkaddr++ = alphabase2; - *blkaddr++ = alphaenc[0] | (alphaenc[1] << 3) | ((alphaenc[2] & 3) << 6); - *blkaddr++ = (alphaenc[2] >> 2) | (alphaenc[3] << 1) | (alphaenc[4] << 4) | ((alphaenc[5] & 1) << 7); - *blkaddr++ = (alphaenc[5] >> 1) | (alphaenc[6] << 2) | (alphaenc[7] << 5); - *blkaddr++ = alphaenc[8] | (alphaenc[9] << 3) | ((alphaenc[10] & 3) << 6); - *blkaddr++ = (alphaenc[10] >> 2) | (alphaenc[11] << 1) | (alphaenc[12] << 4) | ((alphaenc[13] & 1) << 7); - *blkaddr++ = (alphaenc[13] >> 1) | (alphaenc[14] << 2) | (alphaenc[15] << 5); -} - -static void TAG(encode_rgtc_ubyte)(TYPE *blkaddr, TYPE srccolors[4][4], - int numxpixels, int numypixels) -{ - TYPE alphabase[2], alphause[2]; - short alphatest[2] = { 0 }; - unsigned int alphablockerror1, alphablockerror2, alphablockerror3; - TYPE i, j, aindex, acutValues[7]; - TYPE alphaenc1[16], alphaenc2[16], alphaenc3[16]; - int alphaabsmin = 0, alphaabsmax = 0; - short alphadist; - - /* find lowest and highest alpha value in block, alphabase[0] lowest, alphabase[1] highest */ - alphabase[0] = T_MAX; alphabase[1] = T_MIN; - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - if (srccolors[j][i] == T_MIN) - alphaabsmin = 1; - else if (srccolors[j][i] == T_MAX) - alphaabsmax = 1; - else { - if (srccolors[j][i] > alphabase[1]) - alphabase[1] = srccolors[j][i]; - if (srccolors[j][i] < alphabase[0]) - alphabase[0] = srccolors[j][i]; - } - } - } - - - if (((alphabase[0] > alphabase[1]) && !(alphaabsmin && alphaabsmax)) - || (alphabase[0] == alphabase[1] && !alphaabsmin && !alphaabsmax)) { /* one color, either max or min */ - /* shortcut here since it is a very common case (and also avoids later problems) */ - /* could also thest for alpha0 == alpha1 (and not min/max), but probably not common, so don't bother */ - - *blkaddr++ = srccolors[0][0]; - blkaddr++; - *blkaddr++ = 0; - *blkaddr++ = 0; - *blkaddr++ = 0; - *blkaddr++ = 0; - *blkaddr++ = 0; - *blkaddr++ = 0; -#if RGTC_DEBUG - fprintf(stderr, "enc0 used\n"); -#endif - return; - } - - /* find best encoding for alpha0 > alpha1 */ - /* it's possible this encoding is better even if both alphaabsmin and alphaabsmax are true */ - alphablockerror1 = 0x0; - alphablockerror2 = 0xffffffff; - alphablockerror3 = 0xffffffff; - if (alphaabsmin) alphause[0] = T_MIN; - else alphause[0] = alphabase[0]; - if (alphaabsmax) alphause[1] = T_MAX; - else alphause[1] = alphabase[1]; - /* calculate the 7 cut values, just the middle between 2 of the computed alpha values */ - for (aindex = 0; aindex < 7; aindex++) { - /* don't forget here is always rounded down */ - acutValues[aindex] = (alphause[0] * (2*aindex + 1) + alphause[1] * (14 - (2*aindex + 1))) / 14; - } - - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - /* maybe it's overkill to have the most complicated calculation just for the error - calculation which we only need to figure out if encoding1 or encoding2 is better... */ - if (srccolors[j][i] > acutValues[0]) { - alphaenc1[4*j + i] = 0; - alphadist = srccolors[j][i] - alphause[1]; - } - else if (srccolors[j][i] > acutValues[1]) { - alphaenc1[4*j + i] = 2; - alphadist = srccolors[j][i] - (alphause[1] * 6 + alphause[0] * 1) / 7; - } - else if (srccolors[j][i] > acutValues[2]) { - alphaenc1[4*j + i] = 3; - alphadist = srccolors[j][i] - (alphause[1] * 5 + alphause[0] * 2) / 7; - } - else if (srccolors[j][i] > acutValues[3]) { - alphaenc1[4*j + i] = 4; - alphadist = srccolors[j][i] - (alphause[1] * 4 + alphause[0] * 3) / 7; - } - else if (srccolors[j][i] > acutValues[4]) { - alphaenc1[4*j + i] = 5; - alphadist = srccolors[j][i] - (alphause[1] * 3 + alphause[0] * 4) / 7; - } - else if (srccolors[j][i] > acutValues[5]) { - alphaenc1[4*j + i] = 6; - alphadist = srccolors[j][i] - (alphause[1] * 2 + alphause[0] * 5) / 7; - } - else if (srccolors[j][i] > acutValues[6]) { - alphaenc1[4*j + i] = 7; - alphadist = srccolors[j][i] - (alphause[1] * 1 + alphause[0] * 6) / 7; - } - else { - alphaenc1[4*j + i] = 1; - alphadist = srccolors[j][i] - alphause[0]; - } - alphablockerror1 += alphadist * alphadist; - } - } - -#if RGTC_DEBUG - for (i = 0; i < 16; i++) { - fprintf(stderr, "%d ", alphaenc1[i]); - } - fprintf(stderr, "cutVals "); - for (i = 0; i < 7; i++) { - fprintf(stderr, "%d ", acutValues[i]); - } - fprintf(stderr, "srcVals "); - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - fprintf(stderr, "%d ", srccolors[j][i]); - } - } - fprintf(stderr, "\n"); -#endif - - /* it's not very likely this encoding is better if both alphaabsmin and alphaabsmax - are false but try it anyway */ - if (alphablockerror1 >= 32) { - - /* don't bother if encoding is already very good, this condition should also imply - we have valid alphabase colors which we absolutely need (alphabase[0] <= alphabase[1]) */ - alphablockerror2 = 0; - for (aindex = 0; aindex < 5; aindex++) { - /* don't forget here is always rounded down */ - acutValues[aindex] = (alphabase[0] * (10 - (2*aindex + 1)) + alphabase[1] * (2*aindex + 1)) / 10; - } - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - /* maybe it's overkill to have the most complicated calculation just for the error - calculation which we only need to figure out if encoding1 or encoding2 is better... */ - if (srccolors[j][i] == T_MIN) { - alphaenc2[4*j + i] = 6; - alphadist = 0; - } - else if (srccolors[j][i] == T_MAX) { - alphaenc2[4*j + i] = 7; - alphadist = 0; - } - else if (srccolors[j][i] <= acutValues[0]) { - alphaenc2[4*j + i] = 0; - alphadist = srccolors[j][i] - alphabase[0]; - } - else if (srccolors[j][i] <= acutValues[1]) { - alphaenc2[4*j + i] = 2; - alphadist = srccolors[j][i] - (alphabase[0] * 4 + alphabase[1] * 1) / 5; - } - else if (srccolors[j][i] <= acutValues[2]) { - alphaenc2[4*j + i] = 3; - alphadist = srccolors[j][i] - (alphabase[0] * 3 + alphabase[1] * 2) / 5; - } - else if (srccolors[j][i] <= acutValues[3]) { - alphaenc2[4*j + i] = 4; - alphadist = srccolors[j][i] - (alphabase[0] * 2 + alphabase[1] * 3) / 5; - } - else if (srccolors[j][i] <= acutValues[4]) { - alphaenc2[4*j + i] = 5; - alphadist = srccolors[j][i] - (alphabase[0] * 1 + alphabase[1] * 4) / 5; - } - else { - alphaenc2[4*j + i] = 1; - alphadist = srccolors[j][i] - alphabase[1]; - } - alphablockerror2 += alphadist * alphadist; - } - } - - - /* skip this if the error is already very small - this encoding is MUCH better on average than #2 though, but expensive! */ - if ((alphablockerror2 > 96) && (alphablockerror1 > 96)) { - short blockerrlin1 = 0; - short blockerrlin2 = 0; - TYPE nralphainrangelow = 0; - TYPE nralphainrangehigh = 0; - alphatest[0] = T_MAX; - alphatest[1] = T_MIN; - /* if we have large range it's likely there are values close to 0/255, try to map them to 0/255 */ - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - if ((srccolors[j][i] > alphatest[1]) && (srccolors[j][i] < (T_MAX -(alphabase[1] - alphabase[0]) / 28))) - alphatest[1] = srccolors[j][i]; - if ((srccolors[j][i] < alphatest[0]) && (srccolors[j][i] > (alphabase[1] - alphabase[0]) / 28)) - alphatest[0] = srccolors[j][i]; - } - } - /* shouldn't happen too often, don't really care about those degenerated cases */ - if (alphatest[1] <= alphatest[0]) { - alphatest[0] = T_MIN+1; - alphatest[1] = T_MAX-1; - } - for (aindex = 0; aindex < 5; aindex++) { - /* don't forget here is always rounded down */ - acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10; - } - - /* find the "average" difference between the alpha values and the next encoded value. - This is then used to calculate new base values. - Should there be some weighting, i.e. those values closer to alphatest[x] have more weight, - since they will see more improvement, and also because the values in the middle are somewhat - likely to get no improvement at all (because the base values might move in different directions)? - OTOH it would mean the values in the middle are even less likely to get an improvement - */ - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - if (srccolors[j][i] <= alphatest[0] / 2) { - } - else if (srccolors[j][i] > ((T_MAX + alphatest[1]) / 2)) { - } - else if (srccolors[j][i] <= acutValues[0]) { - blockerrlin1 += (srccolors[j][i] - alphatest[0]); - nralphainrangelow += 1; - } - else if (srccolors[j][i] <= acutValues[1]) { - blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5); - blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5); - nralphainrangelow += 1; - nralphainrangehigh += 1; - } - else if (srccolors[j][i] <= acutValues[2]) { - blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5); - blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5); - nralphainrangelow += 1; - nralphainrangehigh += 1; - } - else if (srccolors[j][i] <= acutValues[3]) { - blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5); - blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5); - nralphainrangelow += 1; - nralphainrangehigh += 1; - } - else if (srccolors[j][i] <= acutValues[4]) { - blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5); - blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5); - nralphainrangelow += 1; - nralphainrangehigh += 1; - } - else { - blockerrlin2 += (srccolors[j][i] - alphatest[1]); - nralphainrangehigh += 1; - } - } - } - /* shouldn't happen often, needed to avoid div by zero */ - if (nralphainrangelow == 0) nralphainrangelow = 1; - if (nralphainrangehigh == 0) nralphainrangehigh = 1; - alphatest[0] = alphatest[0] + (blockerrlin1 / nralphainrangelow); -#if RGTC_DEBUG - fprintf(stderr, "block err lin low %d, nr %d\n", blockerrlin1, nralphainrangelow); - fprintf(stderr, "block err lin high %d, nr %d\n", blockerrlin2, nralphainrangehigh); -#endif - /* again shouldn't really happen often... */ - if (alphatest[0] < T_MIN) { - alphatest[0] = T_MIN; - } - alphatest[1] = alphatest[1] + (blockerrlin2 / nralphainrangehigh); - if (alphatest[1] > T_MAX) { - alphatest[1] = T_MAX; - } - - alphablockerror3 = 0; - for (aindex = 0; aindex < 5; aindex++) { - /* don't forget here is always rounded down */ - acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10; - } - for (j = 0; j < numypixels; j++) { - for (i = 0; i < numxpixels; i++) { - /* maybe it's overkill to have the most complicated calculation just for the error - calculation which we only need to figure out if encoding1 or encoding2 is better... */ - if (srccolors[j][i] <= alphatest[0] / 2) { - alphaenc3[4*j + i] = 6; - alphadist = srccolors[j][i]; - } - else if (srccolors[j][i] > ((T_MAX + alphatest[1]) / 2)) { - alphaenc3[4*j + i] = 7; - alphadist = T_MAX - srccolors[j][i]; - } - else if (srccolors[j][i] <= acutValues[0]) { - alphaenc3[4*j + i] = 0; - alphadist = srccolors[j][i] - alphatest[0]; - } - else if (srccolors[j][i] <= acutValues[1]) { - alphaenc3[4*j + i] = 2; - alphadist = srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5; - } - else if (srccolors[j][i] <= acutValues[2]) { - alphaenc3[4*j + i] = 3; - alphadist = srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5; - } - else if (srccolors[j][i] <= acutValues[3]) { - alphaenc3[4*j + i] = 4; - alphadist = srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5; - } - else if (srccolors[j][i] <= acutValues[4]) { - alphaenc3[4*j + i] = 5; - alphadist = srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5; - } - else { - alphaenc3[4*j + i] = 1; - alphadist = srccolors[j][i] - alphatest[1]; - } - alphablockerror3 += alphadist * alphadist; - } - } - } - } - - /* write the alpha values and encoding back. */ - if ((alphablockerror1 <= alphablockerror2) && (alphablockerror1 <= alphablockerror3)) { -#if RGTC_DEBUG - if (alphablockerror1 > 96) fprintf(stderr, "enc1 used, error %d\n", alphablockerror1); - fprintf(stderr,"w1: min %d max %d au0 %d au1 %d\n", - T_MIN, T_MAX, - alphause[1], alphause[0]); -#endif - - TAG(write_rgtc_encoded_channel)( blkaddr, alphause[1], alphause[0], alphaenc1 ); - } - else if (alphablockerror2 <= alphablockerror3) { -#if RGTC_DEBUG - if (alphablockerror2 > 96) fprintf(stderr, "enc2 used, error %d\n", alphablockerror2); - fprintf(stderr,"w2: min %d max %d au0 %d au1 %d\n", - T_MIN, T_MAX, - alphabase[0], alphabase[1]); -#endif - - TAG(write_rgtc_encoded_channel)( blkaddr, alphabase[0], alphabase[1], alphaenc2 ); - } - else { -#if RGTC_DEBUG - fprintf(stderr, "enc3 used, error %d\n", alphablockerror3); - fprintf(stderr,"w3: min %d max %d au0 %d au1 %d\n", - T_MIN, T_MAX, - alphatest[0], alphatest[1]); -#endif - - TAG(write_rgtc_encoded_channel)( blkaddr, (TYPE)alphatest[0], (TYPE)alphatest[1], alphaenc3 ); - } -} diff --git a/src/util/Makefile.sources b/src/util/Makefile.sources index b99aa25..c34475a 100644 --- a/src/util/Makefile.sources +++ b/src/util/Makefile.sources @@ -1,6 +1,7 @@ MESA_UTIL_FILES := \ hash_table.c \ - ralloc.c + ralloc.c \ + rgtc.c MESA_UTIL_GENERATED_FILES = \ format_srgb.c diff --git a/src/util/rgtc.c b/src/util/rgtc.c new file mode 100644 index 0000000..6269924 --- /dev/null +++ b/src/util/rgtc.c @@ -0,0 +1,59 @@ +/* + * Copyright (C) 2011 Red Hat Inc. + * + * block compression parts are: + * Copyright (C) 2004 Roland Scheidegger All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author: + * Dave Airlie + */ + +#include <inttypes.h> +#include "macros.h" + +#include "rgtc.h" + +#define TAG(x) util_format_unsigned_##x + +#define TYPE unsigned char +#define T_MIN 0 +#define T_MAX 0xff + +#include "texcompress_rgtc_tmp.h" + +#undef TAG +#undef TYPE +#undef T_MIN +#undef T_MAX + +#define TAG(x) util_format_signed_##x +#define TYPE signed char +#define T_MIN (signed char)-128 +#define T_MAX (signed char)127 + +#include "texcompress_rgtc_tmp.h" + +#undef TAG +#undef TYPE +#undef T_MIN +#undef T_MAX + diff --git a/src/util/rgtc.h b/src/util/rgtc.h new file mode 100644 index 0000000..6bba9f2 --- /dev/null +++ b/src/util/rgtc.h @@ -0,0 +1,39 @@ +/* + * Copyright © 2014 Red Hat + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS + * IN THE SOFTWARE. + * + */ + +#ifndef _RGTC_H +#define _RGTC_H + +void util_format_unsigned_fetch_texel_rgtc(unsigned srcRowStride, const unsigned char *pixdata, + unsigned i, unsigned j, unsigned char *value, unsigned comps); + +void util_format_signed_fetch_texel_rgtc(unsigned srcRowStride, const signed char *pixdata, + unsigned i, unsigned j, signed char *value, unsigned comps); + +void util_format_unsigned_encode_rgtc_ubyte(unsigned char *blkaddr, unsigned char srccolors[4][4], + int numxpixels, int numypixels); + +void util_format_signed_encode_rgtc_ubyte(signed char *blkaddr, signed char srccolors[4][4], + int numxpixels, int numypixels); +#endif /* _RGTC_H */ diff --git a/src/util/texcompress_rgtc_tmp.h b/src/util/texcompress_rgtc_tmp.h new file mode 100644 index 0000000..6bbae5e --- /dev/null +++ b/src/util/texcompress_rgtc_tmp.h @@ -0,0 +1,418 @@ +/* + * Copyright (C) 2011 Red Hat Inc. + * + * block compression parts are: + * Copyright (C) 2004 Roland Scheidegger All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Author: + * Dave Airlie + */ + +/* included by texcompress_rgtc to define byte/ubyte compressors */ + +void TAG(fetch_texel_rgtc)(unsigned srcRowStride, const TYPE *pixdata, + unsigned i, unsigned j, TYPE *value, unsigned comps) +{ + TYPE decode; + const TYPE *blksrc = (pixdata + ((srcRowStride + 3) / 4 * (j / 4) + (i / 4)) * 8 * comps); + const TYPE alpha0 = blksrc[0]; + const TYPE alpha1 = blksrc[1]; + const char bit_pos = ((j&3) * 4 + (i&3)) * 3; + const unsigned char acodelow = blksrc[2 + bit_pos / 8]; + const unsigned char acodehigh = (3 + bit_pos / 8) < 8 ? blksrc[3 + bit_pos / 8] : 0; + const unsigned char code = (acodelow >> (bit_pos & 0x7) | + (acodehigh << (8 - (bit_pos & 0x7)))) & 0x7; + + if (code == 0) + decode = alpha0; + else if (code == 1) + decode = alpha1; + else if (alpha0 > alpha1) + decode = ((alpha0 * (8 - code) + (alpha1 * (code - 1))) / 7); + else if (code < 6) + decode = ((alpha0 * (6 - code) + (alpha1 * (code - 1))) / 5); + else if (code == 6) + decode = T_MIN; + else + decode = T_MAX; + + *value = decode; +} + +static void TAG(write_rgtc_encoded_channel)(TYPE *blkaddr, + TYPE alphabase1, + TYPE alphabase2, + TYPE alphaenc[16]) +{ + *blkaddr++ = alphabase1; + *blkaddr++ = alphabase2; + *blkaddr++ = alphaenc[0] | (alphaenc[1] << 3) | ((alphaenc[2] & 3) << 6); + *blkaddr++ = (alphaenc[2] >> 2) | (alphaenc[3] << 1) | (alphaenc[4] << 4) | ((alphaenc[5] & 1) << 7); + *blkaddr++ = (alphaenc[5] >> 1) | (alphaenc[6] << 2) | (alphaenc[7] << 5); + *blkaddr++ = alphaenc[8] | (alphaenc[9] << 3) | ((alphaenc[10] & 3) << 6); + *blkaddr++ = (alphaenc[10] >> 2) | (alphaenc[11] << 1) | (alphaenc[12] << 4) | ((alphaenc[13] & 1) << 7); + *blkaddr++ = (alphaenc[13] >> 1) | (alphaenc[14] << 2) | (alphaenc[15] << 5); +} + +void TAG(encode_rgtc_ubyte)(TYPE *blkaddr, TYPE srccolors[4][4], + int numxpixels, int numypixels) +{ + TYPE alphabase[2], alphause[2]; + short alphatest[2] = { 0 }; + unsigned int alphablockerror1, alphablockerror2, alphablockerror3; + TYPE i, j, aindex, acutValues[7]; + TYPE alphaenc1[16], alphaenc2[16], alphaenc3[16]; + int alphaabsmin = 0, alphaabsmax = 0; + short alphadist; + + /* find lowest and highest alpha value in block, alphabase[0] lowest, alphabase[1] highest */ + alphabase[0] = T_MAX; alphabase[1] = T_MIN; + for (j = 0; j < numypixels; j++) { + for (i = 0; i < numxpixels; i++) { + if (srccolors[j][i] == T_MIN) + alphaabsmin = 1; + else if (srccolors[j][i] == T_MAX) + alphaabsmax = 1; + else { + if (srccolors[j][i] > alphabase[1]) + alphabase[1] = srccolors[j][i]; + if (srccolors[j][i] < alphabase[0]) + alphabase[0] = srccolors[j][i]; + } + } + } + + + if (((alphabase[0] > alphabase[1]) && !(alphaabsmin && alphaabsmax)) + || (alphabase[0] == alphabase[1] && !alphaabsmin && !alphaabsmax)) { /* one color, either max or min */ + /* shortcut here since it is a very common case (and also avoids later problems) */ + /* could also thest for alpha0 == alpha1 (and not min/max), but probably not common, so don't bother */ + + *blkaddr++ = srccolors[0][0]; + blkaddr++; + *blkaddr++ = 0; + *blkaddr++ = 0; + *blkaddr++ = 0; + *blkaddr++ = 0; + *blkaddr++ = 0; + *blkaddr++ = 0; +#if RGTC_DEBUG + fprintf(stderr, "enc0 used\n"); +#endif + return; + } + + /* find best encoding for alpha0 > alpha1 */ + /* it's possible this encoding is better even if both alphaabsmin and alphaabsmax are true */ + alphablockerror1 = 0x0; + alphablockerror2 = 0xffffffff; + alphablockerror3 = 0xffffffff; + if (alphaabsmin) alphause[0] = T_MIN; + else alphause[0] = alphabase[0]; + if (alphaabsmax) alphause[1] = T_MAX; + else alphause[1] = alphabase[1]; + /* calculate the 7 cut values, just the middle between 2 of the computed alpha values */ + for (aindex = 0; aindex < 7; aindex++) { + /* don't forget here is always rounded down */ + acutValues[aindex] = (alphause[0] * (2*aindex + 1) + alphause[1] * (14 - (2*aindex + 1))) / 14; + } + + for (j = 0; j < numypixels; j++) { + for (i = 0; i < numxpixels; i++) { + /* maybe it's overkill to have the most complicated calculation just for the error + calculation which we only need to figure out if encoding1 or encoding2 is better... */ + if (srccolors[j][i] > acutValues[0]) { + alphaenc1[4*j + i] = 0; + alphadist = srccolors[j][i] - alphause[1]; + } + else if (srccolors[j][i] > acutValues[1]) { + alphaenc1[4*j + i] = 2; + alphadist = srccolors[j][i] - (alphause[1] * 6 + alphause[0] * 1) / 7; + } + else if (srccolors[j][i] > acutValues[2]) { + alphaenc1[4*j + i] = 3; + alphadist = srccolors[j][i] - (alphause[1] * 5 + alphause[0] * 2) / 7; + } + else if (srccolors[j][i] > acutValues[3]) { + alphaenc1[4*j + i] = 4; + alphadist = srccolors[j][i] - (alphause[1] * 4 + alphause[0] * 3) / 7; + } + else if (srccolors[j][i] > acutValues[4]) { + alphaenc1[4*j + i] = 5; + alphadist = srccolors[j][i] - (alphause[1] * 3 + alphause[0] * 4) / 7; + } + else if (srccolors[j][i] > acutValues[5]) { + alphaenc1[4*j + i] = 6; + alphadist = srccolors[j][i] - (alphause[1] * 2 + alphause[0] * 5) / 7; + } + else if (srccolors[j][i] > acutValues[6]) { + alphaenc1[4*j + i] = 7; + alphadist = srccolors[j][i] - (alphause[1] * 1 + alphause[0] * 6) / 7; + } + else { + alphaenc1[4*j + i] = 1; + alphadist = srccolors[j][i] - alphause[0]; + } + alphablockerror1 += alphadist * alphadist; + } + } + +#if RGTC_DEBUG + for (i = 0; i < 16; i++) { + fprintf(stderr, "%d ", alphaenc1[i]); + } + fprintf(stderr, "cutVals "); + for (i = 0; i < 7; i++) { + fprintf(stderr, "%d ", acutValues[i]); + } + fprintf(stderr, "srcVals "); + for (j = 0; j < numypixels; j++) { + for (i = 0; i < numxpixels; i++) { + fprintf(stderr, "%d ", srccolors[j][i]); + } + } + fprintf(stderr, "\n"); +#endif + + /* it's not very likely this encoding is better if both alphaabsmin and alphaabsmax + are false but try it anyway */ + if (alphablockerror1 >= 32) { + + /* don't bother if encoding is already very good, this condition should also imply + we have valid alphabase colors which we absolutely need (alphabase[0] <= alphabase[1]) */ + alphablockerror2 = 0; + for (aindex = 0; aindex < 5; aindex++) { + /* don't forget here is always rounded down */ + acutValues[aindex] = (alphabase[0] * (10 - (2*aindex + 1)) + alphabase[1] * (2*aindex + 1)) / 10; + } + for (j = 0; j < numypixels; j++) { + for (i = 0; i < numxpixels; i++) { + /* maybe it's overkill to have the most complicated calculation just for the error + calculation which we only need to figure out if encoding1 or encoding2 is better... */ + if (srccolors[j][i] == T_MIN) { + alphaenc2[4*j + i] = 6; + alphadist = 0; + } + else if (srccolors[j][i] == T_MAX) { + alphaenc2[4*j + i] = 7; + alphadist = 0; + } + else if (srccolors[j][i] <= acutValues[0]) { + alphaenc2[4*j + i] = 0; + alphadist = srccolors[j][i] - alphabase[0]; + } + else if (srccolors[j][i] <= acutValues[1]) { + alphaenc2[4*j + i] = 2; + alphadist = srccolors[j][i] - (alphabase[0] * 4 + alphabase[1] * 1) / 5; + } + else if (srccolors[j][i] <= acutValues[2]) { + alphaenc2[4*j + i] = 3; + alphadist = srccolors[j][i] - (alphabase[0] * 3 + alphabase[1] * 2) / 5; + } + else if (srccolors[j][i] <= acutValues[3]) { + alphaenc2[4*j + i] = 4; + alphadist = srccolors[j][i] - (alphabase[0] * 2 + alphabase[1] * 3) / 5; + } + else if (srccolors[j][i] <= acutValues[4]) { + alphaenc2[4*j + i] = 5; + alphadist = srccolors[j][i] - (alphabase[0] * 1 + alphabase[1] * 4) / 5; + } + else { + alphaenc2[4*j + i] = 1; + alphadist = srccolors[j][i] - alphabase[1]; + } + alphablockerror2 += alphadist * alphadist; + } + } + + + /* skip this if the error is already very small + this encoding is MUCH better on average than #2 though, but expensive! */ + if ((alphablockerror2 > 96) && (alphablockerror1 > 96)) { + short blockerrlin1 = 0; + short blockerrlin2 = 0; + TYPE nralphainrangelow = 0; + TYPE nralphainrangehigh = 0; + alphatest[0] = T_MAX; + alphatest[1] = T_MIN; + /* if we have large range it's likely there are values close to 0/255, try to map them to 0/255 */ + for (j = 0; j < numypixels; j++) { + for (i = 0; i < numxpixels; i++) { + if ((srccolors[j][i] > alphatest[1]) && (srccolors[j][i] < (T_MAX -(alphabase[1] - alphabase[0]) / 28))) + alphatest[1] = srccolors[j][i]; + if ((srccolors[j][i] < alphatest[0]) && (srccolors[j][i] > (alphabase[1] - alphabase[0]) / 28)) + alphatest[0] = srccolors[j][i]; + } + } + /* shouldn't happen too often, don't really care about those degenerated cases */ + if (alphatest[1] <= alphatest[0]) { + alphatest[0] = T_MIN+1; + alphatest[1] = T_MAX-1; + } + for (aindex = 0; aindex < 5; aindex++) { + /* don't forget here is always rounded down */ + acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10; + } + + /* find the "average" difference between the alpha values and the next encoded value. + This is then used to calculate new base values. + Should there be some weighting, i.e. those values closer to alphatest[x] have more weight, + since they will see more improvement, and also because the values in the middle are somewhat + likely to get no improvement at all (because the base values might move in different directions)? + OTOH it would mean the values in the middle are even less likely to get an improvement + */ + for (j = 0; j < numypixels; j++) { + for (i = 0; i < numxpixels; i++) { + if (srccolors[j][i] <= alphatest[0] / 2) { + } + else if (srccolors[j][i] > ((T_MAX + alphatest[1]) / 2)) { + } + else if (srccolors[j][i] <= acutValues[0]) { + blockerrlin1 += (srccolors[j][i] - alphatest[0]); + nralphainrangelow += 1; + } + else if (srccolors[j][i] <= acutValues[1]) { + blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5); + blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5); + nralphainrangelow += 1; + nralphainrangehigh += 1; + } + else if (srccolors[j][i] <= acutValues[2]) { + blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5); + blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5); + nralphainrangelow += 1; + nralphainrangehigh += 1; + } + else if (srccolors[j][i] <= acutValues[3]) { + blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5); + blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5); + nralphainrangelow += 1; + nralphainrangehigh += 1; + } + else if (srccolors[j][i] <= acutValues[4]) { + blockerrlin1 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5); + blockerrlin2 += (srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5); + nralphainrangelow += 1; + nralphainrangehigh += 1; + } + else { + blockerrlin2 += (srccolors[j][i] - alphatest[1]); + nralphainrangehigh += 1; + } + } + } + /* shouldn't happen often, needed to avoid div by zero */ + if (nralphainrangelow == 0) nralphainrangelow = 1; + if (nralphainrangehigh == 0) nralphainrangehigh = 1; + alphatest[0] = alphatest[0] + (blockerrlin1 / nralphainrangelow); +#if RGTC_DEBUG + fprintf(stderr, "block err lin low %d, nr %d\n", blockerrlin1, nralphainrangelow); + fprintf(stderr, "block err lin high %d, nr %d\n", blockerrlin2, nralphainrangehigh); +#endif + /* again shouldn't really happen often... */ + if (alphatest[0] < T_MIN) { + alphatest[0] = T_MIN; + } + alphatest[1] = alphatest[1] + (blockerrlin2 / nralphainrangehigh); + if (alphatest[1] > T_MAX) { + alphatest[1] = T_MAX; + } + + alphablockerror3 = 0; + for (aindex = 0; aindex < 5; aindex++) { + /* don't forget here is always rounded down */ + acutValues[aindex] = (alphatest[0] * (10 - (2*aindex + 1)) + alphatest[1] * (2*aindex + 1)) / 10; + } + for (j = 0; j < numypixels; j++) { + for (i = 0; i < numxpixels; i++) { + /* maybe it's overkill to have the most complicated calculation just for the error + calculation which we only need to figure out if encoding1 or encoding2 is better... */ + if (srccolors[j][i] <= alphatest[0] / 2) { + alphaenc3[4*j + i] = 6; + alphadist = srccolors[j][i]; + } + else if (srccolors[j][i] > ((T_MAX + alphatest[1]) / 2)) { + alphaenc3[4*j + i] = 7; + alphadist = T_MAX - srccolors[j][i]; + } + else if (srccolors[j][i] <= acutValues[0]) { + alphaenc3[4*j + i] = 0; + alphadist = srccolors[j][i] - alphatest[0]; + } + else if (srccolors[j][i] <= acutValues[1]) { + alphaenc3[4*j + i] = 2; + alphadist = srccolors[j][i] - (alphatest[0] * 4 + alphatest[1] * 1) / 5; + } + else if (srccolors[j][i] <= acutValues[2]) { + alphaenc3[4*j + i] = 3; + alphadist = srccolors[j][i] - (alphatest[0] * 3 + alphatest[1] * 2) / 5; + } + else if (srccolors[j][i] <= acutValues[3]) { + alphaenc3[4*j + i] = 4; + alphadist = srccolors[j][i] - (alphatest[0] * 2 + alphatest[1] * 3) / 5; + } + else if (srccolors[j][i] <= acutValues[4]) { + alphaenc3[4*j + i] = 5; + alphadist = srccolors[j][i] - (alphatest[0] * 1 + alphatest[1] * 4) / 5; + } + else { + alphaenc3[4*j + i] = 1; + alphadist = srccolors[j][i] - alphatest[1]; + } + alphablockerror3 += alphadist * alphadist; + } + } + } + } + + /* write the alpha values and encoding back. */ + if ((alphablockerror1 <= alphablockerror2) && (alphablockerror1 <= alphablockerror3)) { +#if RGTC_DEBUG + if (alphablockerror1 > 96) fprintf(stderr, "enc1 used, error %d\n", alphablockerror1); + fprintf(stderr,"w1: min %d max %d au0 %d au1 %d\n", + T_MIN, T_MAX, + alphause[1], alphause[0]); +#endif + + TAG(write_rgtc_encoded_channel)( blkaddr, alphause[1], alphause[0], alphaenc1 ); + } + else if (alphablockerror2 <= alphablockerror3) { +#if RGTC_DEBUG + if (alphablockerror2 > 96) fprintf(stderr, "enc2 used, error %d\n", alphablockerror2); + fprintf(stderr,"w2: min %d max %d au0 %d au1 %d\n", + T_MIN, T_MAX, + alphabase[0], alphabase[1]); +#endif + + TAG(write_rgtc_encoded_channel)( blkaddr, alphabase[0], alphabase[1], alphaenc2 ); + } + else { +#if RGTC_DEBUG + fprintf(stderr, "enc3 used, error %d\n", alphablockerror3); + fprintf(stderr,"w3: min %d max %d au0 %d au1 %d\n", + T_MIN, T_MAX, + alphatest[0], alphatest[1]); +#endif + + TAG(write_rgtc_encoded_channel)( blkaddr, (TYPE)alphatest[0], (TYPE)alphatest[1], alphaenc3 ); + } +} -- 1.9.3 _______________________________________________ mesa-dev mailing list <a href="mailto:mesa-dev@lists.freedesktop.org">mesa-dev@lists.freedesktop.org</a> <a href="http://lists.freedesktop.org/mailman/listinfo/mesa-dev" target="_blank">http://lists.freedesktop.org/mailman/listinfo/mesa-dev</a> </blockquote></div> </div>