From 9b009a8bdb31d08e3d07f68416373b9aa6f85724 Mon Sep 17 00:00:00 2001 From: marha Date: Thu, 4 Aug 2011 16:44:35 +0200 Subject: randrproto mesa xserver git update 4 aug 2011 --- mesalib/src/gallium/auxiliary/util/u_format.c | 834 +++++++------ mesalib/src/gallium/auxiliary/util/u_format.h | 1663 +++++++++++++------------ 2 files changed, 1283 insertions(+), 1214 deletions(-) (limited to 'mesalib/src/gallium/auxiliary/util') diff --git a/mesalib/src/gallium/auxiliary/util/u_format.c b/mesalib/src/gallium/auxiliary/util/u_format.c index 91485b05c..34922ab18 100644 --- a/mesalib/src/gallium/auxiliary/util/u_format.c +++ b/mesalib/src/gallium/auxiliary/util/u_format.c @@ -1,392 +1,442 @@ -/************************************************************************** - * - * Copyright 2010 VMware, Inc. - * 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, sub license, 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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. - * - **************************************************************************/ - -/** - * @file - * Pixel format accessor functions. - * - * @author Jose Fonseca - */ - -#include "u_math.h" -#include "u_memory.h" -#include "u_rect.h" -#include "u_format.h" -#include "u_format_s3tc.h" - -#include "pipe/p_defines.h" - - -boolean -util_format_is_float(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - unsigned i; - - assert(desc); - if (!desc) { - return FALSE; - } - - /* Find the first non-void channel. */ - for (i = 0; i < 4; i++) { - if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) { - break; - } - } - - if (i == 4) { - return FALSE; - } - - return desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT ? TRUE : FALSE; -} - - -boolean -util_format_is_supported(enum pipe_format format, unsigned bind) -{ - if (util_format_is_s3tc(format) && !util_format_s3tc_enabled) { - return FALSE; - } - -#ifndef TEXTURE_FLOAT_ENABLED - if ((bind & PIPE_BIND_RENDER_TARGET) && - format != PIPE_FORMAT_R9G9B9E5_FLOAT && - format != PIPE_FORMAT_R11G11B10_FLOAT && - util_format_is_float(format)) { - return FALSE; - } -#endif - - return TRUE; -} - - -void -util_format_read_4f(enum pipe_format format, - float *dst, unsigned dst_stride, - const void *src, unsigned src_stride, - unsigned x, unsigned y, unsigned w, unsigned h) -{ - const struct util_format_description *format_desc; - const uint8_t *src_row; - float *dst_row; - - format_desc = util_format_description(format); - - assert(x % format_desc->block.width == 0); - assert(y % format_desc->block.height == 0); - - src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8); - dst_row = dst; - - format_desc->unpack_rgba_float(dst_row, dst_stride, src_row, src_stride, w, h); -} - - -void -util_format_write_4f(enum pipe_format format, - const float *src, unsigned src_stride, - void *dst, unsigned dst_stride, - unsigned x, unsigned y, unsigned w, unsigned h) -{ - const struct util_format_description *format_desc; - uint8_t *dst_row; - const float *src_row; - - format_desc = util_format_description(format); - - assert(x % format_desc->block.width == 0); - assert(y % format_desc->block.height == 0); - - dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8); - src_row = src; - - format_desc->pack_rgba_float(dst_row, dst_stride, src_row, src_stride, w, h); -} - - -void -util_format_read_4ub(enum pipe_format format, uint8_t *dst, unsigned dst_stride, const void *src, unsigned src_stride, unsigned x, unsigned y, unsigned w, unsigned h) -{ - const struct util_format_description *format_desc; - const uint8_t *src_row; - uint8_t *dst_row; - - format_desc = util_format_description(format); - - assert(x % format_desc->block.width == 0); - assert(y % format_desc->block.height == 0); - - src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8); - dst_row = dst; - - format_desc->unpack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, w, h); -} - - -void -util_format_write_4ub(enum pipe_format format, const uint8_t *src, unsigned src_stride, void *dst, unsigned dst_stride, unsigned x, unsigned y, unsigned w, unsigned h) -{ - const struct util_format_description *format_desc; - uint8_t *dst_row; - const uint8_t *src_row; - - format_desc = util_format_description(format); - - assert(x % format_desc->block.width == 0); - assert(y % format_desc->block.height == 0); - - dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8); - src_row = src; - - format_desc->pack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, w, h); -} - - -boolean -util_is_format_compatible(const struct util_format_description *src_desc, - const struct util_format_description *dst_desc) -{ - unsigned chan; - - if (src_desc->format == dst_desc->format) { - return TRUE; - } - - if (src_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN || - dst_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) { - return FALSE; - } - - if (src_desc->block.bits != dst_desc->block.bits || - src_desc->nr_channels != dst_desc->nr_channels || - src_desc->colorspace != dst_desc->colorspace) { - return FALSE; - } - - for (chan = 0; chan < 4; ++chan) { - if (src_desc->channel[chan].size != - dst_desc->channel[chan].size) { - return FALSE; - } - } - - for (chan = 0; chan < 4; ++chan) { - enum util_format_swizzle swizzle = dst_desc->swizzle[chan]; - - if (swizzle < 4) { - if (src_desc->swizzle[chan] != swizzle) { - return FALSE; - } - if ((src_desc->channel[swizzle].type != - dst_desc->channel[swizzle].type) || - (src_desc->channel[swizzle].normalized != - dst_desc->channel[swizzle].normalized)) { - return FALSE; - } - } - } - - return TRUE; -} - - -boolean -util_format_fits_8unorm(const struct util_format_description *format_desc) -{ - unsigned chan; - - /* - * After linearized sRGB values require more than 8bits. - */ - - if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) { - return FALSE; - } - - switch (format_desc->layout) { - - case UTIL_FORMAT_LAYOUT_S3TC: - case UTIL_FORMAT_LAYOUT_RGTC: - /* - * These are straight forward. - */ - - return TRUE; - - case UTIL_FORMAT_LAYOUT_PLAIN: - /* - * For these we can find a generic rule. - */ - - for (chan = 0; chan < format_desc->nr_channels; ++chan) { - switch (format_desc->channel[chan].type) { - case UTIL_FORMAT_TYPE_VOID: - break; - case UTIL_FORMAT_TYPE_UNSIGNED: - if (!format_desc->channel[chan].normalized || - format_desc->channel[chan].size > 8) { - return FALSE; - } - break; - default: - return FALSE; - } - } - return TRUE; - - default: - /* - * Handle all others on a case by case basis. - */ - - switch (format_desc->format) { - case PIPE_FORMAT_R1_UNORM: - case PIPE_FORMAT_UYVY: - case PIPE_FORMAT_YUYV: - case PIPE_FORMAT_R8G8_B8G8_UNORM: - case PIPE_FORMAT_G8R8_G8B8_UNORM: - return TRUE; - - default: - return FALSE; - } - } -} - - -void -util_format_translate(enum pipe_format dst_format, - void *dst, unsigned dst_stride, - unsigned dst_x, unsigned dst_y, - enum pipe_format src_format, - const void *src, unsigned src_stride, - unsigned src_x, unsigned src_y, - unsigned width, unsigned height) -{ - const struct util_format_description *dst_format_desc; - const struct util_format_description *src_format_desc; - uint8_t *dst_row; - const uint8_t *src_row; - unsigned x_step, y_step; - unsigned dst_step; - unsigned src_step; - - dst_format_desc = util_format_description(dst_format); - src_format_desc = util_format_description(src_format); - - if (util_is_format_compatible(src_format_desc, dst_format_desc)) { - /* - * Trivial case. - */ - - util_copy_rect(dst, dst_format, dst_stride, dst_x, dst_y, - width, height, src, (int)src_stride, - src_x, src_y); - return; - } - - assert(dst_x % dst_format_desc->block.width == 0); - assert(dst_y % dst_format_desc->block.height == 0); - assert(src_x % src_format_desc->block.width == 0); - assert(src_y % src_format_desc->block.height == 0); - - dst_row = (uint8_t *)dst + dst_y*dst_stride + dst_x*(dst_format_desc->block.bits/8); - src_row = (const uint8_t *)src + src_y*src_stride + src_x*(src_format_desc->block.bits/8); - - /* - * This works because all pixel formats have pixel blocks with power of two - * sizes. - */ - - y_step = MAX2(dst_format_desc->block.height, src_format_desc->block.height); - x_step = MAX2(dst_format_desc->block.width, src_format_desc->block.width); - assert(y_step % dst_format_desc->block.height == 0); - assert(y_step % src_format_desc->block.height == 0); - - dst_step = y_step / dst_format_desc->block.height * dst_stride; - src_step = y_step / src_format_desc->block.height * src_stride; - - /* - * TODO: double formats will loose precision - * TODO: Add a special case for formats that are mere swizzles of each other - */ - - if (util_format_fits_8unorm(src_format_desc) || - util_format_fits_8unorm(dst_format_desc)) { - unsigned tmp_stride; - uint8_t *tmp_row; - - tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row; - tmp_row = MALLOC(y_step * tmp_stride); - if (!tmp_row) - return; - - while (height >= y_step) { - src_format_desc->unpack_rgba_8unorm(tmp_row, tmp_stride, src_row, src_stride, width, y_step); - dst_format_desc->pack_rgba_8unorm(dst_row, dst_stride, tmp_row, tmp_stride, width, y_step); - - dst_row += dst_step; - src_row += src_step; - height -= y_step; - } - - if (height) { - src_format_desc->unpack_rgba_8unorm(tmp_row, tmp_stride, src_row, src_stride, width, height); - dst_format_desc->pack_rgba_8unorm(dst_row, dst_stride, tmp_row, tmp_stride, width, height); - } - - FREE(tmp_row); - } - else { - unsigned tmp_stride; - float *tmp_row; - - tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row; - tmp_row = MALLOC(y_step * tmp_stride); - if (!tmp_row) - return; - - while (height >= y_step) { - src_format_desc->unpack_rgba_float(tmp_row, tmp_stride, src_row, src_stride, width, y_step); - dst_format_desc->pack_rgba_float(dst_row, dst_stride, tmp_row, tmp_stride, width, y_step); - - dst_row += dst_step; - src_row += src_step; - height -= y_step; - } - - if (height) { - src_format_desc->unpack_rgba_float(tmp_row, tmp_stride, src_row, src_stride, width, height); - dst_format_desc->pack_rgba_float(dst_row, dst_stride, tmp_row, tmp_stride, width, height); - } - - FREE(tmp_row); - } -} +/************************************************************************** + * + * Copyright 2010 VMware, Inc. + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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. + * + **************************************************************************/ + +/** + * @file + * Pixel format accessor functions. + * + * @author Jose Fonseca + */ + +#include "u_math.h" +#include "u_memory.h" +#include "u_rect.h" +#include "u_format.h" +#include "u_format_s3tc.h" + +#include "pipe/p_defines.h" + + +boolean +util_format_is_float(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + unsigned i; + + assert(desc); + if (!desc) { + return FALSE; + } + + /* Find the first non-void channel. */ + for (i = 0; i < 4; i++) { + if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) { + break; + } + } + + if (i == 4) { + return FALSE; + } + + return desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT ? TRUE : FALSE; +} + + +boolean +util_format_is_supported(enum pipe_format format, unsigned bind) +{ + if (util_format_is_s3tc(format) && !util_format_s3tc_enabled) { + return FALSE; + } + +#ifndef TEXTURE_FLOAT_ENABLED + if ((bind & PIPE_BIND_RENDER_TARGET) && + format != PIPE_FORMAT_R9G9B9E5_FLOAT && + format != PIPE_FORMAT_R11G11B10_FLOAT && + util_format_is_float(format)) { + return FALSE; + } +#endif + + return TRUE; +} + + +void +util_format_read_4f(enum pipe_format format, + float *dst, unsigned dst_stride, + const void *src, unsigned src_stride, + unsigned x, unsigned y, unsigned w, unsigned h) +{ + const struct util_format_description *format_desc; + const uint8_t *src_row; + float *dst_row; + + format_desc = util_format_description(format); + + assert(x % format_desc->block.width == 0); + assert(y % format_desc->block.height == 0); + + src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8); + dst_row = dst; + + format_desc->unpack_rgba_float(dst_row, dst_stride, src_row, src_stride, w, h); +} + + +void +util_format_write_4f(enum pipe_format format, + const float *src, unsigned src_stride, + void *dst, unsigned dst_stride, + unsigned x, unsigned y, unsigned w, unsigned h) +{ + const struct util_format_description *format_desc; + uint8_t *dst_row; + const float *src_row; + + format_desc = util_format_description(format); + + assert(x % format_desc->block.width == 0); + assert(y % format_desc->block.height == 0); + + dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8); + src_row = src; + + format_desc->pack_rgba_float(dst_row, dst_stride, src_row, src_stride, w, h); +} + + +void +util_format_read_4ub(enum pipe_format format, uint8_t *dst, unsigned dst_stride, const void *src, unsigned src_stride, unsigned x, unsigned y, unsigned w, unsigned h) +{ + const struct util_format_description *format_desc; + const uint8_t *src_row; + uint8_t *dst_row; + + format_desc = util_format_description(format); + + assert(x % format_desc->block.width == 0); + assert(y % format_desc->block.height == 0); + + src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8); + dst_row = dst; + + format_desc->unpack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, w, h); +} + + +void +util_format_write_4ub(enum pipe_format format, const uint8_t *src, unsigned src_stride, void *dst, unsigned dst_stride, unsigned x, unsigned y, unsigned w, unsigned h) +{ + const struct util_format_description *format_desc; + uint8_t *dst_row; + const uint8_t *src_row; + + format_desc = util_format_description(format); + + assert(x % format_desc->block.width == 0); + assert(y % format_desc->block.height == 0); + + dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8); + src_row = src; + + format_desc->pack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, w, h); +} + + +boolean +util_is_format_compatible(const struct util_format_description *src_desc, + const struct util_format_description *dst_desc) +{ + unsigned chan; + + if (src_desc->format == dst_desc->format) { + return TRUE; + } + + if (src_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN || + dst_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) { + return FALSE; + } + + if (src_desc->block.bits != dst_desc->block.bits || + src_desc->nr_channels != dst_desc->nr_channels || + src_desc->colorspace != dst_desc->colorspace) { + return FALSE; + } + + for (chan = 0; chan < 4; ++chan) { + if (src_desc->channel[chan].size != + dst_desc->channel[chan].size) { + return FALSE; + } + } + + for (chan = 0; chan < 4; ++chan) { + enum util_format_swizzle swizzle = dst_desc->swizzle[chan]; + + if (swizzle < 4) { + if (src_desc->swizzle[chan] != swizzle) { + return FALSE; + } + if ((src_desc->channel[swizzle].type != + dst_desc->channel[swizzle].type) || + (src_desc->channel[swizzle].normalized != + dst_desc->channel[swizzle].normalized)) { + return FALSE; + } + } + } + + return TRUE; +} + + +boolean +util_format_fits_8unorm(const struct util_format_description *format_desc) +{ + unsigned chan; + + /* + * After linearized sRGB values require more than 8bits. + */ + + if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) { + return FALSE; + } + + switch (format_desc->layout) { + + case UTIL_FORMAT_LAYOUT_S3TC: + case UTIL_FORMAT_LAYOUT_RGTC: + /* + * These are straight forward. + */ + + return TRUE; + + case UTIL_FORMAT_LAYOUT_PLAIN: + /* + * For these we can find a generic rule. + */ + + for (chan = 0; chan < format_desc->nr_channels; ++chan) { + switch (format_desc->channel[chan].type) { + case UTIL_FORMAT_TYPE_VOID: + break; + case UTIL_FORMAT_TYPE_UNSIGNED: + if (!format_desc->channel[chan].normalized || + format_desc->channel[chan].size > 8) { + return FALSE; + } + break; + default: + return FALSE; + } + } + return TRUE; + + default: + /* + * Handle all others on a case by case basis. + */ + + switch (format_desc->format) { + case PIPE_FORMAT_R1_UNORM: + case PIPE_FORMAT_UYVY: + case PIPE_FORMAT_YUYV: + case PIPE_FORMAT_R8G8_B8G8_UNORM: + case PIPE_FORMAT_G8R8_G8B8_UNORM: + return TRUE; + + default: + return FALSE; + } + } +} + + +void +util_format_translate(enum pipe_format dst_format, + void *dst, unsigned dst_stride, + unsigned dst_x, unsigned dst_y, + enum pipe_format src_format, + const void *src, unsigned src_stride, + unsigned src_x, unsigned src_y, + unsigned width, unsigned height) +{ + const struct util_format_description *dst_format_desc; + const struct util_format_description *src_format_desc; + uint8_t *dst_row; + const uint8_t *src_row; + unsigned x_step, y_step; + unsigned dst_step; + unsigned src_step; + + dst_format_desc = util_format_description(dst_format); + src_format_desc = util_format_description(src_format); + + if (util_is_format_compatible(src_format_desc, dst_format_desc)) { + /* + * Trivial case. + */ + + util_copy_rect(dst, dst_format, dst_stride, dst_x, dst_y, + width, height, src, (int)src_stride, + src_x, src_y); + return; + } + + assert(dst_x % dst_format_desc->block.width == 0); + assert(dst_y % dst_format_desc->block.height == 0); + assert(src_x % src_format_desc->block.width == 0); + assert(src_y % src_format_desc->block.height == 0); + + dst_row = (uint8_t *)dst + dst_y*dst_stride + dst_x*(dst_format_desc->block.bits/8); + src_row = (const uint8_t *)src + src_y*src_stride + src_x*(src_format_desc->block.bits/8); + + /* + * This works because all pixel formats have pixel blocks with power of two + * sizes. + */ + + y_step = MAX2(dst_format_desc->block.height, src_format_desc->block.height); + x_step = MAX2(dst_format_desc->block.width, src_format_desc->block.width); + assert(y_step % dst_format_desc->block.height == 0); + assert(y_step % src_format_desc->block.height == 0); + + dst_step = y_step / dst_format_desc->block.height * dst_stride; + src_step = y_step / src_format_desc->block.height * src_stride; + + /* + * TODO: double formats will loose precision + * TODO: Add a special case for formats that are mere swizzles of each other + */ + + if (util_format_fits_8unorm(src_format_desc) || + util_format_fits_8unorm(dst_format_desc)) { + unsigned tmp_stride; + uint8_t *tmp_row; + + tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row; + tmp_row = MALLOC(y_step * tmp_stride); + if (!tmp_row) + return; + + while (height >= y_step) { + src_format_desc->unpack_rgba_8unorm(tmp_row, tmp_stride, src_row, src_stride, width, y_step); + dst_format_desc->pack_rgba_8unorm(dst_row, dst_stride, tmp_row, tmp_stride, width, y_step); + + dst_row += dst_step; + src_row += src_step; + height -= y_step; + } + + if (height) { + src_format_desc->unpack_rgba_8unorm(tmp_row, tmp_stride, src_row, src_stride, width, height); + dst_format_desc->pack_rgba_8unorm(dst_row, dst_stride, tmp_row, tmp_stride, width, height); + } + + FREE(tmp_row); + } + else { + unsigned tmp_stride; + float *tmp_row; + + tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row; + tmp_row = MALLOC(y_step * tmp_stride); + if (!tmp_row) + return; + + while (height >= y_step) { + src_format_desc->unpack_rgba_float(tmp_row, tmp_stride, src_row, src_stride, width, y_step); + dst_format_desc->pack_rgba_float(dst_row, dst_stride, tmp_row, tmp_stride, width, y_step); + + dst_row += dst_step; + src_row += src_step; + height -= y_step; + } + + if (height) { + src_format_desc->unpack_rgba_float(tmp_row, tmp_stride, src_row, src_stride, width, height); + dst_format_desc->pack_rgba_float(dst_row, dst_stride, tmp_row, tmp_stride, width, height); + } + + FREE(tmp_row); + } +} + +void util_format_compose_swizzles(const unsigned char swz1[4], + const unsigned char swz2[4], + unsigned char dst[4]) +{ + unsigned i; + + for (i = 0; i < 4; i++) { + dst[i] = swz2[i] <= UTIL_FORMAT_SWIZZLE_W ? + swz1[swz2[i]] : swz2[i]; + } +} + +void util_format_swizzle_4f(float *dst, const float *src, + const unsigned char swz[4]) +{ + unsigned i; + + for (i = 0; i < 4; i++) { + if (swz[i] <= UTIL_FORMAT_SWIZZLE_W) + dst[i] = src[swz[i]]; + else if (swz[i] == UTIL_FORMAT_SWIZZLE_0) + dst[i] = 0; + else if (swz[i] == UTIL_FORMAT_SWIZZLE_1) + dst[i] = 1; + } +} + +void util_format_unswizzle_4f(float *dst, const float *src, + const unsigned char swz[4]) +{ + unsigned i; + + for (i = 0; i < 4; i++) { + switch (swz[i]) { + case UTIL_FORMAT_SWIZZLE_X: + dst[0] = src[i]; + break; + case UTIL_FORMAT_SWIZZLE_Y: + dst[1] = src[i]; + break; + case UTIL_FORMAT_SWIZZLE_Z: + dst[2] = src[i]; + break; + case UTIL_FORMAT_SWIZZLE_W: + dst[3] = src[i]; + break; + } + } +} diff --git a/mesalib/src/gallium/auxiliary/util/u_format.h b/mesalib/src/gallium/auxiliary/util/u_format.h index 6e9b6902e..566fa79e7 100644 --- a/mesalib/src/gallium/auxiliary/util/u_format.h +++ b/mesalib/src/gallium/auxiliary/util/u_format.h @@ -1,822 +1,841 @@ -/************************************************************************** - * - * Copyright 2009-2010 Vmware, Inc. - * 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, sub license, 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 NON-INFRINGEMENT. - * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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 U_FORMAT_H -#define U_FORMAT_H - - -#include "pipe/p_format.h" -#include "util/u_debug.h" - -#ifdef __cplusplus -extern "C" { -#endif - - -/** - * Describe how to pack/unpack pixels into/from the prescribed format. - * - * XXX: This could be renamed to something like util_format_pack, or broke down - * in flags inside util_format_block that said exactly what we want. - */ -enum util_format_layout { - /** - * Formats with util_format_block::width == util_format_block::height == 1 - * that can be described as an ordinary data structure. - */ - UTIL_FORMAT_LAYOUT_PLAIN = 0, - - /** - * Formats with sub-sampled channels. - * - * This is for formats like YV12 where there is less than one sample per - * pixel. - */ - UTIL_FORMAT_LAYOUT_SUBSAMPLED = 3, - - /** - * S3 Texture Compression formats. - */ - UTIL_FORMAT_LAYOUT_S3TC = 4, - - /** - * Red-Green Texture Compression formats. - */ - UTIL_FORMAT_LAYOUT_RGTC = 5, - - /** - * Everything else that doesn't fit in any of the above layouts. - */ - UTIL_FORMAT_LAYOUT_OTHER = 6 -}; - - -struct util_format_block -{ - /** Block width in pixels */ - unsigned width; - - /** Block height in pixels */ - unsigned height; - - /** Block size in bits */ - unsigned bits; -}; - - -enum util_format_type { - UTIL_FORMAT_TYPE_VOID = 0, - UTIL_FORMAT_TYPE_UNSIGNED = 1, - UTIL_FORMAT_TYPE_SIGNED = 2, - UTIL_FORMAT_TYPE_FIXED = 3, - UTIL_FORMAT_TYPE_FLOAT = 4 -}; - - -enum util_format_swizzle { - UTIL_FORMAT_SWIZZLE_X = 0, - UTIL_FORMAT_SWIZZLE_Y = 1, - UTIL_FORMAT_SWIZZLE_Z = 2, - UTIL_FORMAT_SWIZZLE_W = 3, - UTIL_FORMAT_SWIZZLE_0 = 4, - UTIL_FORMAT_SWIZZLE_1 = 5, - UTIL_FORMAT_SWIZZLE_NONE = 6 -}; - - -enum util_format_colorspace { - UTIL_FORMAT_COLORSPACE_RGB = 0, - UTIL_FORMAT_COLORSPACE_SRGB = 1, - UTIL_FORMAT_COLORSPACE_YUV = 2, - UTIL_FORMAT_COLORSPACE_ZS = 3 -}; - - -struct util_format_channel_description -{ - unsigned type:6; - unsigned normalized:1; - unsigned size:9; -}; - - -struct util_format_description -{ - enum pipe_format format; - - const char *name; - - /** - * Short name, striped of the prefix, lower case. - */ - const char *short_name; - - /** - * Pixel block dimensions. - */ - struct util_format_block block; - - enum util_format_layout layout; - - /** - * The number of channels. - */ - unsigned nr_channels:3; - - /** - * Whether all channels have the same number of (whole) bytes. - */ - unsigned is_array:1; - - /** - * Whether the pixel format can be described as a bitfield structure. - * - * In particular: - * - pixel depth must be 8, 16, or 32 bits; - * - all channels must be unsigned, signed, or void - */ - unsigned is_bitmask:1; - - /** - * Whether channels have mixed types (ignoring UTIL_FORMAT_TYPE_VOID). - */ - unsigned is_mixed:1; - - /** - * Input channel description. - * - * Only valid for UTIL_FORMAT_LAYOUT_PLAIN formats. - */ - struct util_format_channel_description channel[4]; - - /** - * Output channel swizzle. - * - * The order is either: - * - RGBA - * - YUV(A) - * - ZS - * depending on the colorspace. - */ - unsigned char swizzle[4]; - - /** - * Colorspace transformation. - */ - enum util_format_colorspace colorspace; - - /** - * Unpack pixel blocks to R8G8B8A8_UNORM. - * Note: strides are in bytes. - * - * Only defined for non-depth-stencil formats. - */ - void - (*unpack_rgba_8unorm)(uint8_t *dst, unsigned dst_stride, - const uint8_t *src, unsigned src_stride, - unsigned width, unsigned height); - - /** - * Pack pixel blocks from R8G8B8A8_UNORM. - * Note: strides are in bytes. - * - * Only defined for non-depth-stencil formats. - */ - void - (*pack_rgba_8unorm)(uint8_t *dst, unsigned dst_stride, - const uint8_t *src, unsigned src_stride, - unsigned width, unsigned height); - - /** - * Fetch a single pixel (i, j) from a block. - * - * XXX: Only defined for a very few select formats. - */ - void - (*fetch_rgba_8unorm)(uint8_t *dst, - const uint8_t *src, - unsigned i, unsigned j); - - /** - * Unpack pixel blocks to R32G32B32A32_FLOAT. - * Note: strides are in bytes. - * - * Only defined for non-depth-stencil formats. - */ - void - (*unpack_rgba_float)(float *dst, unsigned dst_stride, - const uint8_t *src, unsigned src_stride, - unsigned width, unsigned height); - - /** - * Pack pixel blocks from R32G32B32A32_FLOAT. - * Note: strides are in bytes. - * - * Only defined for non-depth-stencil formats. - */ - void - (*pack_rgba_float)(uint8_t *dst, unsigned dst_stride, - const float *src, unsigned src_stride, - unsigned width, unsigned height); - - /** - * Fetch a single pixel (i, j) from a block. - * - * Only defined for non-depth-stencil formats. - */ - void - (*fetch_rgba_float)(float *dst, - const uint8_t *src, - unsigned i, unsigned j); - - /** - * Unpack pixels to Z32_UNORM. - * Note: strides are in bytes. - * - * Only defined for depth formats. - */ - void - (*unpack_z_32unorm)(uint32_t *dst, unsigned dst_stride, - const uint8_t *src, unsigned src_stride, - unsigned width, unsigned height); - - /** - * Pack pixels from Z32_FLOAT. - * Note: strides are in bytes. - * - * Only defined for depth formats. - */ - void - (*pack_z_32unorm)(uint8_t *dst, unsigned dst_stride, - const uint32_t *src, unsigned src_stride, - unsigned width, unsigned height); - - /** - * Unpack pixels to Z32_FLOAT. - * Note: strides are in bytes. - * - * Only defined for depth formats. - */ - void - (*unpack_z_float)(float *dst, unsigned dst_stride, - const uint8_t *src, unsigned src_stride, - unsigned width, unsigned height); - - /** - * Pack pixels from Z32_FLOAT. - * Note: strides are in bytes. - * - * Only defined for depth formats. - */ - void - (*pack_z_float)(uint8_t *dst, unsigned dst_stride, - const float *src, unsigned src_stride, - unsigned width, unsigned height); - - /** - * Unpack pixels to S8_USCALED. - * Note: strides are in bytes. - * - * Only defined for stencil formats. - */ - void - (*unpack_s_8uscaled)(uint8_t *dst, unsigned dst_stride, - const uint8_t *src, unsigned src_stride, - unsigned width, unsigned height); - - /** - * Pack pixels from S8_USCALED. - * Note: strides are in bytes. - * - * Only defined for stencil formats. - */ - void - (*pack_s_8uscaled)(uint8_t *dst, unsigned dst_stride, - const uint8_t *src, unsigned src_stride, - unsigned width, unsigned height); - -}; - - -extern const struct util_format_description -util_format_description_table[]; - - -const struct util_format_description * -util_format_description(enum pipe_format format); - - -/* - * Format query functions. - */ - -static INLINE const char * -util_format_name(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(desc); - if (!desc) { - return "PIPE_FORMAT_???"; - } - - return desc->name; -} - -static INLINE const char * -util_format_short_name(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(desc); - if (!desc) { - return "???"; - } - - return desc->short_name; -} - -/** - * Whether this format is plain, see UTIL_FORMAT_LAYOUT_PLAIN for more info. - */ -static INLINE boolean -util_format_is_plain(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - if (!format) { - return FALSE; - } - - return desc->layout == UTIL_FORMAT_LAYOUT_PLAIN ? TRUE : FALSE; -} - -static INLINE boolean -util_format_is_compressed(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(desc); - if (!desc) { - return FALSE; - } - - switch (desc->layout) { - case UTIL_FORMAT_LAYOUT_S3TC: - case UTIL_FORMAT_LAYOUT_RGTC: - /* XXX add other formats in the future */ - return TRUE; - default: - return FALSE; - } -} - -static INLINE boolean -util_format_is_s3tc(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(desc); - if (!desc) { - return FALSE; - } - - return desc->layout == UTIL_FORMAT_LAYOUT_S3TC ? TRUE : FALSE; -} - -static INLINE boolean -util_format_is_depth_or_stencil(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(desc); - if (!desc) { - return FALSE; - } - - return desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS ? TRUE : FALSE; -} - -static INLINE boolean -util_format_is_depth_and_stencil(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(desc); - if (!desc) { - return FALSE; - } - - if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS) { - return FALSE; - } - - return (desc->swizzle[0] != UTIL_FORMAT_SWIZZLE_NONE && - desc->swizzle[1] != UTIL_FORMAT_SWIZZLE_NONE) ? TRUE : FALSE; -} - - -/** - * Give the RGBA colormask of the channels that can be represented in this - * format. - * - * That is, the channels whose values are preserved. - */ -static INLINE unsigned -util_format_colormask(const struct util_format_description *desc) -{ - unsigned colormask; - unsigned chan; - - switch (desc->colorspace) { - case UTIL_FORMAT_COLORSPACE_RGB: - case UTIL_FORMAT_COLORSPACE_SRGB: - case UTIL_FORMAT_COLORSPACE_YUV: - colormask = 0; - for (chan = 0; chan < 4; ++chan) { - if (desc->swizzle[chan] < 4) { - colormask |= (1 << chan); - } - } - return colormask; - case UTIL_FORMAT_COLORSPACE_ZS: - return 0; - default: - assert(0); - return 0; - } -} - - -boolean -util_format_is_float(enum pipe_format format); - - -/** - * Whether the src format can be blitted to destation format with a simple - * memcpy. - */ -boolean -util_is_format_compatible(const struct util_format_description *src_desc, - const struct util_format_description *dst_desc); - -/** - * Whether the format is supported by Gallium for the given bindings. - * This covers S3TC textures and floating-point render targets. - */ -boolean -util_format_is_supported(enum pipe_format format, unsigned bind); - -/** - * Whether this format is a rgab8 variant. - * - * That is, any format that matches the - * - * PIPE_FORMAT_?8?8?8?8_UNORM - */ -static INLINE boolean -util_format_is_rgba8_variant(const struct util_format_description *desc) -{ - unsigned chan; - - if(desc->block.width != 1 || - desc->block.height != 1 || - desc->block.bits != 32) - return FALSE; - - for(chan = 0; chan < 4; ++chan) { - if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED && - desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID) - return FALSE; - if(desc->channel[chan].size != 8) - return FALSE; - } - - return TRUE; -} - - -/** - * Return total bits needed for the pixel format per block. - */ -static INLINE uint -util_format_get_blocksizebits(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(desc); - if (!desc) { - return 0; - } - - return desc->block.bits; -} - -/** - * Return bytes per block (not pixel) for the given format. - */ -static INLINE uint -util_format_get_blocksize(enum pipe_format format) -{ - uint bits = util_format_get_blocksizebits(format); - - assert(bits % 8 == 0); - - return bits / 8; -} - -static INLINE uint -util_format_get_blockwidth(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(desc); - if (!desc) { - return 1; - } - - return desc->block.width; -} - -static INLINE uint -util_format_get_blockheight(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(desc); - if (!desc) { - return 1; - } - - return desc->block.height; -} - -static INLINE unsigned -util_format_get_nblocksx(enum pipe_format format, - unsigned x) -{ - unsigned blockwidth = util_format_get_blockwidth(format); - return (x + blockwidth - 1) / blockwidth; -} - -static INLINE unsigned -util_format_get_nblocksy(enum pipe_format format, - unsigned y) -{ - unsigned blockheight = util_format_get_blockheight(format); - return (y + blockheight - 1) / blockheight; -} - -static INLINE unsigned -util_format_get_nblocks(enum pipe_format format, - unsigned width, - unsigned height) -{ - return util_format_get_nblocksx(format, width) * util_format_get_nblocksy(format, height); -} - -static INLINE size_t -util_format_get_stride(enum pipe_format format, - unsigned width) -{ - return util_format_get_nblocksx(format, width) * util_format_get_blocksize(format); -} - -static INLINE size_t -util_format_get_2d_size(enum pipe_format format, - size_t stride, - unsigned height) -{ - return util_format_get_nblocksy(format, height) * stride; -} - -static INLINE uint -util_format_get_component_bits(enum pipe_format format, - enum util_format_colorspace colorspace, - uint component) -{ - const struct util_format_description *desc = util_format_description(format); - enum util_format_colorspace desc_colorspace; - - assert(format); - if (!format) { - return 0; - } - - assert(component < 4); - - /* Treat RGB and SRGB as equivalent. */ - if (colorspace == UTIL_FORMAT_COLORSPACE_SRGB) { - colorspace = UTIL_FORMAT_COLORSPACE_RGB; - } - if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) { - desc_colorspace = UTIL_FORMAT_COLORSPACE_RGB; - } else { - desc_colorspace = desc->colorspace; - } - - if (desc_colorspace != colorspace) { - return 0; - } - - switch (desc->swizzle[component]) { - case UTIL_FORMAT_SWIZZLE_X: - return desc->channel[0].size; - case UTIL_FORMAT_SWIZZLE_Y: - return desc->channel[1].size; - case UTIL_FORMAT_SWIZZLE_Z: - return desc->channel[2].size; - case UTIL_FORMAT_SWIZZLE_W: - return desc->channel[3].size; - default: - return 0; - } -} - -static INLINE boolean -util_format_has_alpha(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - - assert(format); - if (!format) { - return FALSE; - } - - switch (desc->colorspace) { - case UTIL_FORMAT_COLORSPACE_RGB: - case UTIL_FORMAT_COLORSPACE_SRGB: - return desc->swizzle[3] != UTIL_FORMAT_SWIZZLE_1; - case UTIL_FORMAT_COLORSPACE_YUV: - return FALSE; - case UTIL_FORMAT_COLORSPACE_ZS: - return FALSE; - default: - assert(0); - return FALSE; - } -} - -/** - * Given a linear RGB colorspace format, return the corresponding SRGB - * format, or PIPE_FORMAT_NONE if none. - */ -static INLINE enum pipe_format -util_format_srgb(enum pipe_format format) -{ - switch (format) { - case PIPE_FORMAT_L8_UNORM: - return PIPE_FORMAT_L8_SRGB; - case PIPE_FORMAT_L8A8_UNORM: - return PIPE_FORMAT_L8A8_SRGB; - case PIPE_FORMAT_R8G8B8_UNORM: - return PIPE_FORMAT_R8G8B8_SRGB; - case PIPE_FORMAT_A8B8G8R8_UNORM: - return PIPE_FORMAT_A8B8G8R8_SRGB; - case PIPE_FORMAT_X8B8G8R8_UNORM: - return PIPE_FORMAT_X8B8G8R8_SRGB; - case PIPE_FORMAT_B8G8R8A8_UNORM: - return PIPE_FORMAT_B8G8R8A8_SRGB; - case PIPE_FORMAT_B8G8R8X8_UNORM: - return PIPE_FORMAT_B8G8R8X8_SRGB; - case PIPE_FORMAT_A8R8G8B8_UNORM: - return PIPE_FORMAT_A8R8G8B8_SRGB; - case PIPE_FORMAT_X8R8G8B8_UNORM: - return PIPE_FORMAT_X8R8G8B8_SRGB; - case PIPE_FORMAT_DXT1_RGB: - return PIPE_FORMAT_DXT1_SRGB; - case PIPE_FORMAT_DXT1_RGBA: - return PIPE_FORMAT_DXT1_SRGBA; - case PIPE_FORMAT_DXT3_RGBA: - return PIPE_FORMAT_DXT3_SRGBA; - case PIPE_FORMAT_DXT5_RGBA: - return PIPE_FORMAT_DXT5_SRGBA; - default: - return PIPE_FORMAT_NONE; - } -} - -/** - * Given an sRGB format, return the corresponding linear colorspace format. - * For non sRGB formats, return the format unchanged. - */ -static INLINE enum pipe_format -util_format_linear(enum pipe_format format) -{ - switch (format) { - case PIPE_FORMAT_L8_SRGB: - return PIPE_FORMAT_L8_UNORM; - case PIPE_FORMAT_L8A8_SRGB: - return PIPE_FORMAT_L8A8_UNORM; - case PIPE_FORMAT_R8G8B8_SRGB: - return PIPE_FORMAT_R8G8B8_UNORM; - case PIPE_FORMAT_A8B8G8R8_SRGB: - return PIPE_FORMAT_A8B8G8R8_UNORM; - case PIPE_FORMAT_X8B8G8R8_SRGB: - return PIPE_FORMAT_X8B8G8R8_UNORM; - case PIPE_FORMAT_B8G8R8A8_SRGB: - return PIPE_FORMAT_B8G8R8A8_UNORM; - case PIPE_FORMAT_B8G8R8X8_SRGB: - return PIPE_FORMAT_B8G8R8X8_UNORM; - case PIPE_FORMAT_A8R8G8B8_SRGB: - return PIPE_FORMAT_A8R8G8B8_UNORM; - case PIPE_FORMAT_X8R8G8B8_SRGB: - return PIPE_FORMAT_X8R8G8B8_UNORM; - case PIPE_FORMAT_DXT1_SRGB: - return PIPE_FORMAT_DXT1_RGB; - case PIPE_FORMAT_DXT1_SRGBA: - return PIPE_FORMAT_DXT1_RGBA; - case PIPE_FORMAT_DXT3_SRGBA: - return PIPE_FORMAT_DXT3_RGBA; - case PIPE_FORMAT_DXT5_SRGBA: - return PIPE_FORMAT_DXT5_RGBA; - default: - return format; - } -} - -/** - * Return the number of components stored. - * Formats with block size != 1x1 will always have 1 component (the block). - */ -static INLINE unsigned -util_format_get_nr_components(enum pipe_format format) -{ - const struct util_format_description *desc = util_format_description(format); - return desc->nr_channels; -} - -/* - * Format access functions. - */ - -void -util_format_read_4f(enum pipe_format format, - float *dst, unsigned dst_stride, - const void *src, unsigned src_stride, - unsigned x, unsigned y, unsigned w, unsigned h); - -void -util_format_write_4f(enum pipe_format format, - const float *src, unsigned src_stride, - void *dst, unsigned dst_stride, - unsigned x, unsigned y, unsigned w, unsigned h); - -void -util_format_read_4ub(enum pipe_format format, - uint8_t *dst, unsigned dst_stride, - const void *src, unsigned src_stride, - unsigned x, unsigned y, unsigned w, unsigned h); - -void -util_format_write_4ub(enum pipe_format format, - const uint8_t *src, unsigned src_stride, - void *dst, unsigned dst_stride, - unsigned x, unsigned y, unsigned w, unsigned h); - -/* - * Generic format conversion; - */ - -boolean -util_format_fits_8unorm(const struct util_format_description *format_desc); - -void -util_format_translate(enum pipe_format dst_format, - void *dst, unsigned dst_stride, - unsigned dst_x, unsigned dst_y, - enum pipe_format src_format, - const void *src, unsigned src_stride, - unsigned src_x, unsigned src_y, - unsigned width, unsigned height); - -#ifdef __cplusplus -} // extern "C" { -#endif - -#endif /* ! U_FORMAT_H */ +/************************************************************************** + * + * Copyright 2009-2010 Vmware, Inc. + * 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, sub license, 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 NON-INFRINGEMENT. + * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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 U_FORMAT_H +#define U_FORMAT_H + + +#include "pipe/p_format.h" +#include "util/u_debug.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +/** + * Describe how to pack/unpack pixels into/from the prescribed format. + * + * XXX: This could be renamed to something like util_format_pack, or broke down + * in flags inside util_format_block that said exactly what we want. + */ +enum util_format_layout { + /** + * Formats with util_format_block::width == util_format_block::height == 1 + * that can be described as an ordinary data structure. + */ + UTIL_FORMAT_LAYOUT_PLAIN = 0, + + /** + * Formats with sub-sampled channels. + * + * This is for formats like YV12 where there is less than one sample per + * pixel. + */ + UTIL_FORMAT_LAYOUT_SUBSAMPLED = 3, + + /** + * S3 Texture Compression formats. + */ + UTIL_FORMAT_LAYOUT_S3TC = 4, + + /** + * Red-Green Texture Compression formats. + */ + UTIL_FORMAT_LAYOUT_RGTC = 5, + + /** + * Everything else that doesn't fit in any of the above layouts. + */ + UTIL_FORMAT_LAYOUT_OTHER = 6 +}; + + +struct util_format_block +{ + /** Block width in pixels */ + unsigned width; + + /** Block height in pixels */ + unsigned height; + + /** Block size in bits */ + unsigned bits; +}; + + +enum util_format_type { + UTIL_FORMAT_TYPE_VOID = 0, + UTIL_FORMAT_TYPE_UNSIGNED = 1, + UTIL_FORMAT_TYPE_SIGNED = 2, + UTIL_FORMAT_TYPE_FIXED = 3, + UTIL_FORMAT_TYPE_FLOAT = 4 +}; + + +enum util_format_swizzle { + UTIL_FORMAT_SWIZZLE_X = 0, + UTIL_FORMAT_SWIZZLE_Y = 1, + UTIL_FORMAT_SWIZZLE_Z = 2, + UTIL_FORMAT_SWIZZLE_W = 3, + UTIL_FORMAT_SWIZZLE_0 = 4, + UTIL_FORMAT_SWIZZLE_1 = 5, + UTIL_FORMAT_SWIZZLE_NONE = 6 +}; + + +enum util_format_colorspace { + UTIL_FORMAT_COLORSPACE_RGB = 0, + UTIL_FORMAT_COLORSPACE_SRGB = 1, + UTIL_FORMAT_COLORSPACE_YUV = 2, + UTIL_FORMAT_COLORSPACE_ZS = 3 +}; + + +struct util_format_channel_description +{ + unsigned type:6; + unsigned normalized:1; + unsigned size:9; +}; + + +struct util_format_description +{ + enum pipe_format format; + + const char *name; + + /** + * Short name, striped of the prefix, lower case. + */ + const char *short_name; + + /** + * Pixel block dimensions. + */ + struct util_format_block block; + + enum util_format_layout layout; + + /** + * The number of channels. + */ + unsigned nr_channels:3; + + /** + * Whether all channels have the same number of (whole) bytes. + */ + unsigned is_array:1; + + /** + * Whether the pixel format can be described as a bitfield structure. + * + * In particular: + * - pixel depth must be 8, 16, or 32 bits; + * - all channels must be unsigned, signed, or void + */ + unsigned is_bitmask:1; + + /** + * Whether channels have mixed types (ignoring UTIL_FORMAT_TYPE_VOID). + */ + unsigned is_mixed:1; + + /** + * Input channel description. + * + * Only valid for UTIL_FORMAT_LAYOUT_PLAIN formats. + */ + struct util_format_channel_description channel[4]; + + /** + * Output channel swizzle. + * + * The order is either: + * - RGBA + * - YUV(A) + * - ZS + * depending on the colorspace. + */ + unsigned char swizzle[4]; + + /** + * Colorspace transformation. + */ + enum util_format_colorspace colorspace; + + /** + * Unpack pixel blocks to R8G8B8A8_UNORM. + * Note: strides are in bytes. + * + * Only defined for non-depth-stencil formats. + */ + void + (*unpack_rgba_8unorm)(uint8_t *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Pack pixel blocks from R8G8B8A8_UNORM. + * Note: strides are in bytes. + * + * Only defined for non-depth-stencil formats. + */ + void + (*pack_rgba_8unorm)(uint8_t *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Fetch a single pixel (i, j) from a block. + * + * XXX: Only defined for a very few select formats. + */ + void + (*fetch_rgba_8unorm)(uint8_t *dst, + const uint8_t *src, + unsigned i, unsigned j); + + /** + * Unpack pixel blocks to R32G32B32A32_FLOAT. + * Note: strides are in bytes. + * + * Only defined for non-depth-stencil formats. + */ + void + (*unpack_rgba_float)(float *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Pack pixel blocks from R32G32B32A32_FLOAT. + * Note: strides are in bytes. + * + * Only defined for non-depth-stencil formats. + */ + void + (*pack_rgba_float)(uint8_t *dst, unsigned dst_stride, + const float *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Fetch a single pixel (i, j) from a block. + * + * Only defined for non-depth-stencil formats. + */ + void + (*fetch_rgba_float)(float *dst, + const uint8_t *src, + unsigned i, unsigned j); + + /** + * Unpack pixels to Z32_UNORM. + * Note: strides are in bytes. + * + * Only defined for depth formats. + */ + void + (*unpack_z_32unorm)(uint32_t *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Pack pixels from Z32_FLOAT. + * Note: strides are in bytes. + * + * Only defined for depth formats. + */ + void + (*pack_z_32unorm)(uint8_t *dst, unsigned dst_stride, + const uint32_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Unpack pixels to Z32_FLOAT. + * Note: strides are in bytes. + * + * Only defined for depth formats. + */ + void + (*unpack_z_float)(float *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Pack pixels from Z32_FLOAT. + * Note: strides are in bytes. + * + * Only defined for depth formats. + */ + void + (*pack_z_float)(uint8_t *dst, unsigned dst_stride, + const float *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Unpack pixels to S8_USCALED. + * Note: strides are in bytes. + * + * Only defined for stencil formats. + */ + void + (*unpack_s_8uscaled)(uint8_t *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + + /** + * Pack pixels from S8_USCALED. + * Note: strides are in bytes. + * + * Only defined for stencil formats. + */ + void + (*pack_s_8uscaled)(uint8_t *dst, unsigned dst_stride, + const uint8_t *src, unsigned src_stride, + unsigned width, unsigned height); + +}; + + +extern const struct util_format_description +util_format_description_table[]; + + +const struct util_format_description * +util_format_description(enum pipe_format format); + + +/* + * Format query functions. + */ + +static INLINE const char * +util_format_name(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(desc); + if (!desc) { + return "PIPE_FORMAT_???"; + } + + return desc->name; +} + +static INLINE const char * +util_format_short_name(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(desc); + if (!desc) { + return "???"; + } + + return desc->short_name; +} + +/** + * Whether this format is plain, see UTIL_FORMAT_LAYOUT_PLAIN for more info. + */ +static INLINE boolean +util_format_is_plain(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + if (!format) { + return FALSE; + } + + return desc->layout == UTIL_FORMAT_LAYOUT_PLAIN ? TRUE : FALSE; +} + +static INLINE boolean +util_format_is_compressed(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(desc); + if (!desc) { + return FALSE; + } + + switch (desc->layout) { + case UTIL_FORMAT_LAYOUT_S3TC: + case UTIL_FORMAT_LAYOUT_RGTC: + /* XXX add other formats in the future */ + return TRUE; + default: + return FALSE; + } +} + +static INLINE boolean +util_format_is_s3tc(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(desc); + if (!desc) { + return FALSE; + } + + return desc->layout == UTIL_FORMAT_LAYOUT_S3TC ? TRUE : FALSE; +} + +static INLINE boolean +util_format_is_depth_or_stencil(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(desc); + if (!desc) { + return FALSE; + } + + return desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS ? TRUE : FALSE; +} + +static INLINE boolean +util_format_is_depth_and_stencil(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(desc); + if (!desc) { + return FALSE; + } + + if (desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS) { + return FALSE; + } + + return (desc->swizzle[0] != UTIL_FORMAT_SWIZZLE_NONE && + desc->swizzle[1] != UTIL_FORMAT_SWIZZLE_NONE) ? TRUE : FALSE; +} + + +/** + * Give the RGBA colormask of the channels that can be represented in this + * format. + * + * That is, the channels whose values are preserved. + */ +static INLINE unsigned +util_format_colormask(const struct util_format_description *desc) +{ + unsigned colormask; + unsigned chan; + + switch (desc->colorspace) { + case UTIL_FORMAT_COLORSPACE_RGB: + case UTIL_FORMAT_COLORSPACE_SRGB: + case UTIL_FORMAT_COLORSPACE_YUV: + colormask = 0; + for (chan = 0; chan < 4; ++chan) { + if (desc->swizzle[chan] < 4) { + colormask |= (1 << chan); + } + } + return colormask; + case UTIL_FORMAT_COLORSPACE_ZS: + return 0; + default: + assert(0); + return 0; + } +} + + +boolean +util_format_is_float(enum pipe_format format); + + +/** + * Whether the src format can be blitted to destation format with a simple + * memcpy. + */ +boolean +util_is_format_compatible(const struct util_format_description *src_desc, + const struct util_format_description *dst_desc); + +/** + * Whether the format is supported by Gallium for the given bindings. + * This covers S3TC textures and floating-point render targets. + */ +boolean +util_format_is_supported(enum pipe_format format, unsigned bind); + +/** + * Whether this format is a rgab8 variant. + * + * That is, any format that matches the + * + * PIPE_FORMAT_?8?8?8?8_UNORM + */ +static INLINE boolean +util_format_is_rgba8_variant(const struct util_format_description *desc) +{ + unsigned chan; + + if(desc->block.width != 1 || + desc->block.height != 1 || + desc->block.bits != 32) + return FALSE; + + for(chan = 0; chan < 4; ++chan) { + if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED && + desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID) + return FALSE; + if(desc->channel[chan].size != 8) + return FALSE; + } + + return TRUE; +} + + +/** + * Return total bits needed for the pixel format per block. + */ +static INLINE uint +util_format_get_blocksizebits(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(desc); + if (!desc) { + return 0; + } + + return desc->block.bits; +} + +/** + * Return bytes per block (not pixel) for the given format. + */ +static INLINE uint +util_format_get_blocksize(enum pipe_format format) +{ + uint bits = util_format_get_blocksizebits(format); + + assert(bits % 8 == 0); + + return bits / 8; +} + +static INLINE uint +util_format_get_blockwidth(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(desc); + if (!desc) { + return 1; + } + + return desc->block.width; +} + +static INLINE uint +util_format_get_blockheight(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(desc); + if (!desc) { + return 1; + } + + return desc->block.height; +} + +static INLINE unsigned +util_format_get_nblocksx(enum pipe_format format, + unsigned x) +{ + unsigned blockwidth = util_format_get_blockwidth(format); + return (x + blockwidth - 1) / blockwidth; +} + +static INLINE unsigned +util_format_get_nblocksy(enum pipe_format format, + unsigned y) +{ + unsigned blockheight = util_format_get_blockheight(format); + return (y + blockheight - 1) / blockheight; +} + +static INLINE unsigned +util_format_get_nblocks(enum pipe_format format, + unsigned width, + unsigned height) +{ + return util_format_get_nblocksx(format, width) * util_format_get_nblocksy(format, height); +} + +static INLINE size_t +util_format_get_stride(enum pipe_format format, + unsigned width) +{ + return util_format_get_nblocksx(format, width) * util_format_get_blocksize(format); +} + +static INLINE size_t +util_format_get_2d_size(enum pipe_format format, + size_t stride, + unsigned height) +{ + return util_format_get_nblocksy(format, height) * stride; +} + +static INLINE uint +util_format_get_component_bits(enum pipe_format format, + enum util_format_colorspace colorspace, + uint component) +{ + const struct util_format_description *desc = util_format_description(format); + enum util_format_colorspace desc_colorspace; + + assert(format); + if (!format) { + return 0; + } + + assert(component < 4); + + /* Treat RGB and SRGB as equivalent. */ + if (colorspace == UTIL_FORMAT_COLORSPACE_SRGB) { + colorspace = UTIL_FORMAT_COLORSPACE_RGB; + } + if (desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) { + desc_colorspace = UTIL_FORMAT_COLORSPACE_RGB; + } else { + desc_colorspace = desc->colorspace; + } + + if (desc_colorspace != colorspace) { + return 0; + } + + switch (desc->swizzle[component]) { + case UTIL_FORMAT_SWIZZLE_X: + return desc->channel[0].size; + case UTIL_FORMAT_SWIZZLE_Y: + return desc->channel[1].size; + case UTIL_FORMAT_SWIZZLE_Z: + return desc->channel[2].size; + case UTIL_FORMAT_SWIZZLE_W: + return desc->channel[3].size; + default: + return 0; + } +} + +static INLINE boolean +util_format_has_alpha(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + + assert(format); + if (!format) { + return FALSE; + } + + switch (desc->colorspace) { + case UTIL_FORMAT_COLORSPACE_RGB: + case UTIL_FORMAT_COLORSPACE_SRGB: + return desc->swizzle[3] != UTIL_FORMAT_SWIZZLE_1; + case UTIL_FORMAT_COLORSPACE_YUV: + return FALSE; + case UTIL_FORMAT_COLORSPACE_ZS: + return FALSE; + default: + assert(0); + return FALSE; + } +} + +/** + * Given a linear RGB colorspace format, return the corresponding SRGB + * format, or PIPE_FORMAT_NONE if none. + */ +static INLINE enum pipe_format +util_format_srgb(enum pipe_format format) +{ + switch (format) { + case PIPE_FORMAT_L8_UNORM: + return PIPE_FORMAT_L8_SRGB; + case PIPE_FORMAT_L8A8_UNORM: + return PIPE_FORMAT_L8A8_SRGB; + case PIPE_FORMAT_R8G8B8_UNORM: + return PIPE_FORMAT_R8G8B8_SRGB; + case PIPE_FORMAT_A8B8G8R8_UNORM: + return PIPE_FORMAT_A8B8G8R8_SRGB; + case PIPE_FORMAT_X8B8G8R8_UNORM: + return PIPE_FORMAT_X8B8G8R8_SRGB; + case PIPE_FORMAT_B8G8R8A8_UNORM: + return PIPE_FORMAT_B8G8R8A8_SRGB; + case PIPE_FORMAT_B8G8R8X8_UNORM: + return PIPE_FORMAT_B8G8R8X8_SRGB; + case PIPE_FORMAT_A8R8G8B8_UNORM: + return PIPE_FORMAT_A8R8G8B8_SRGB; + case PIPE_FORMAT_X8R8G8B8_UNORM: + return PIPE_FORMAT_X8R8G8B8_SRGB; + case PIPE_FORMAT_DXT1_RGB: + return PIPE_FORMAT_DXT1_SRGB; + case PIPE_FORMAT_DXT1_RGBA: + return PIPE_FORMAT_DXT1_SRGBA; + case PIPE_FORMAT_DXT3_RGBA: + return PIPE_FORMAT_DXT3_SRGBA; + case PIPE_FORMAT_DXT5_RGBA: + return PIPE_FORMAT_DXT5_SRGBA; + default: + return PIPE_FORMAT_NONE; + } +} + +/** + * Given an sRGB format, return the corresponding linear colorspace format. + * For non sRGB formats, return the format unchanged. + */ +static INLINE enum pipe_format +util_format_linear(enum pipe_format format) +{ + switch (format) { + case PIPE_FORMAT_L8_SRGB: + return PIPE_FORMAT_L8_UNORM; + case PIPE_FORMAT_L8A8_SRGB: + return PIPE_FORMAT_L8A8_UNORM; + case PIPE_FORMAT_R8G8B8_SRGB: + return PIPE_FORMAT_R8G8B8_UNORM; + case PIPE_FORMAT_A8B8G8R8_SRGB: + return PIPE_FORMAT_A8B8G8R8_UNORM; + case PIPE_FORMAT_X8B8G8R8_SRGB: + return PIPE_FORMAT_X8B8G8R8_UNORM; + case PIPE_FORMAT_B8G8R8A8_SRGB: + return PIPE_FORMAT_B8G8R8A8_UNORM; + case PIPE_FORMAT_B8G8R8X8_SRGB: + return PIPE_FORMAT_B8G8R8X8_UNORM; + case PIPE_FORMAT_A8R8G8B8_SRGB: + return PIPE_FORMAT_A8R8G8B8_UNORM; + case PIPE_FORMAT_X8R8G8B8_SRGB: + return PIPE_FORMAT_X8R8G8B8_UNORM; + case PIPE_FORMAT_DXT1_SRGB: + return PIPE_FORMAT_DXT1_RGB; + case PIPE_FORMAT_DXT1_SRGBA: + return PIPE_FORMAT_DXT1_RGBA; + case PIPE_FORMAT_DXT3_SRGBA: + return PIPE_FORMAT_DXT3_RGBA; + case PIPE_FORMAT_DXT5_SRGBA: + return PIPE_FORMAT_DXT5_RGBA; + default: + return format; + } +} + +/** + * Return the number of components stored. + * Formats with block size != 1x1 will always have 1 component (the block). + */ +static INLINE unsigned +util_format_get_nr_components(enum pipe_format format) +{ + const struct util_format_description *desc = util_format_description(format); + return desc->nr_channels; +} + +/* + * Format access functions. + */ + +void +util_format_read_4f(enum pipe_format format, + float *dst, unsigned dst_stride, + const void *src, unsigned src_stride, + unsigned x, unsigned y, unsigned w, unsigned h); + +void +util_format_write_4f(enum pipe_format format, + const float *src, unsigned src_stride, + void *dst, unsigned dst_stride, + unsigned x, unsigned y, unsigned w, unsigned h); + +void +util_format_read_4ub(enum pipe_format format, + uint8_t *dst, unsigned dst_stride, + const void *src, unsigned src_stride, + unsigned x, unsigned y, unsigned w, unsigned h); + +void +util_format_write_4ub(enum pipe_format format, + const uint8_t *src, unsigned src_stride, + void *dst, unsigned dst_stride, + unsigned x, unsigned y, unsigned w, unsigned h); + +/* + * Generic format conversion; + */ + +boolean +util_format_fits_8unorm(const struct util_format_description *format_desc); + +void +util_format_translate(enum pipe_format dst_format, + void *dst, unsigned dst_stride, + unsigned dst_x, unsigned dst_y, + enum pipe_format src_format, + const void *src, unsigned src_stride, + unsigned src_x, unsigned src_y, + unsigned width, unsigned height); + +/* + * Swizzle operations. + */ + +/* Compose two sets of swizzles. + * If V is a 4D vector and the function parameters represent functions that + * swizzle vector components, this holds: + * swz2(swz1(V)) = dst(V) + */ +void util_format_compose_swizzles(const unsigned char swz1[4], + const unsigned char swz2[4], + unsigned char dst[4]); + +void util_format_swizzle_4f(float *dst, const float *src, + const unsigned char swz[4]); + +void util_format_unswizzle_4f(float *dst, const float *src, + const unsigned char swz[4]); + +#ifdef __cplusplus +} // extern "C" { +#endif + +#endif /* ! U_FORMAT_H */ -- cgit v1.2.3