/**************************************************************************
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*
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* Copyright 2010 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* @file
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* Pixel format accessor functions.
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*
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* @author Jose Fonseca <jfonseca@vmware.com>
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*/
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#include "u_math.h"
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#include "u_memory.h"
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#include "u_format.h"
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#include "u_format_s3tc.h"
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#include "u_surface.h"
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#include "pipe/p_defines.h"
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boolean
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util_format_is_float(enum pipe_format format)
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{
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const struct util_format_description *desc = util_format_description(format);
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int i;
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assert(desc);
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if (!desc) {
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return FALSE;
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}
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i = util_format_get_first_non_void_channel(format);
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if (i < 0) {
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return FALSE;
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}
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return desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT ? TRUE : FALSE;
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}
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/** Test if the format contains RGB, but not alpha */
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boolean
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util_format_has_alpha(enum pipe_format format)
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{
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const struct util_format_description *desc =
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util_format_description(format);
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return (desc->colorspace == UTIL_FORMAT_COLORSPACE_RGB ||
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desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) &&
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desc->swizzle[3] != PIPE_SWIZZLE_1;
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}
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boolean
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util_format_is_luminance(enum pipe_format format)
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{
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const struct util_format_description *desc =
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util_format_description(format);
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if ((desc->colorspace == UTIL_FORMAT_COLORSPACE_RGB ||
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desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) &&
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desc->swizzle[0] == PIPE_SWIZZLE_X &&
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desc->swizzle[1] == PIPE_SWIZZLE_X &&
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desc->swizzle[2] == PIPE_SWIZZLE_X &&
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desc->swizzle[3] == PIPE_SWIZZLE_1) {
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return TRUE;
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}
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return FALSE;
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}
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boolean
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util_format_is_alpha(enum pipe_format format)
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{
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const struct util_format_description *desc =
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util_format_description(format);
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if ((desc->colorspace == UTIL_FORMAT_COLORSPACE_RGB ||
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desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) &&
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desc->swizzle[0] == PIPE_SWIZZLE_0 &&
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desc->swizzle[1] == PIPE_SWIZZLE_0 &&
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desc->swizzle[2] == PIPE_SWIZZLE_0 &&
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desc->swizzle[3] == PIPE_SWIZZLE_X) {
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return TRUE;
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}
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return FALSE;
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}
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boolean
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util_format_is_pure_integer(enum pipe_format format)
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{
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const struct util_format_description *desc = util_format_description(format);
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int i;
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/* Find the first non-void channel. */
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i = util_format_get_first_non_void_channel(format);
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if (i == -1)
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return FALSE;
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return desc->channel[i].pure_integer ? TRUE : FALSE;
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}
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boolean
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util_format_is_pure_sint(enum pipe_format format)
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{
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const struct util_format_description *desc = util_format_description(format);
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int i;
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i = util_format_get_first_non_void_channel(format);
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if (i == -1)
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return FALSE;
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return (desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED && desc->channel[i].pure_integer) ? TRUE : FALSE;
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}
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boolean
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util_format_is_pure_uint(enum pipe_format format)
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{
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const struct util_format_description *desc = util_format_description(format);
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int i;
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i = util_format_get_first_non_void_channel(format);
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if (i == -1)
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return FALSE;
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return (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED && desc->channel[i].pure_integer) ? TRUE : FALSE;
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}
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/**
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* Returns true if all non-void channels are normalized signed.
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*/
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boolean
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util_format_is_snorm(enum pipe_format format)
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{
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const struct util_format_description *desc = util_format_description(format);
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int i;
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if (desc->is_mixed)
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return FALSE;
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i = util_format_get_first_non_void_channel(format);
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if (i == -1)
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return FALSE;
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return desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED &&
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!desc->channel[i].pure_integer &&
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desc->channel[i].normalized;
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}
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boolean
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util_format_is_snorm8(enum pipe_format format)
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{
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const struct util_format_description *desc = util_format_description(format);
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int i;
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if (desc->is_mixed)
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return FALSE;
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i = util_format_get_first_non_void_channel(format);
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if (i == -1)
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return FALSE;
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return desc->channel[i].type == UTIL_FORMAT_TYPE_SIGNED &&
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!desc->channel[i].pure_integer &&
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desc->channel[i].normalized &&
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desc->channel[i].size == 8;
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}
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boolean
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util_format_is_luminance_alpha(enum pipe_format format)
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{
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const struct util_format_description *desc =
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util_format_description(format);
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if ((desc->colorspace == UTIL_FORMAT_COLORSPACE_RGB ||
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desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) &&
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desc->swizzle[0] == PIPE_SWIZZLE_X &&
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desc->swizzle[1] == PIPE_SWIZZLE_X &&
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desc->swizzle[2] == PIPE_SWIZZLE_X &&
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desc->swizzle[3] == PIPE_SWIZZLE_Y) {
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return TRUE;
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}
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return FALSE;
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}
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boolean
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util_format_is_intensity(enum pipe_format format)
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{
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const struct util_format_description *desc =
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util_format_description(format);
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if ((desc->colorspace == UTIL_FORMAT_COLORSPACE_RGB ||
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desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) &&
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desc->swizzle[0] == PIPE_SWIZZLE_X &&
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desc->swizzle[1] == PIPE_SWIZZLE_X &&
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desc->swizzle[2] == PIPE_SWIZZLE_X &&
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desc->swizzle[3] == PIPE_SWIZZLE_X) {
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return TRUE;
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}
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return FALSE;
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}
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boolean
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util_format_is_subsampled_422(enum pipe_format format)
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{
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const struct util_format_description *desc =
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util_format_description(format);
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return desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED &&
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desc->block.width == 2 &&
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desc->block.height == 1 &&
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desc->block.bits == 32;
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}
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boolean
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util_format_is_supported(enum pipe_format format, unsigned bind)
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{
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if (format >= PIPE_FORMAT_COUNT) {
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return FALSE;
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}
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#ifndef TEXTURE_FLOAT_ENABLED
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if ((bind & PIPE_BIND_RENDER_TARGET) &&
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format != PIPE_FORMAT_R9G9B9E5_FLOAT &&
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format != PIPE_FORMAT_R11G11B10_FLOAT &&
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util_format_is_float(format)) {
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return FALSE;
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}
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#else
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(void)bind;
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#endif
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return TRUE;
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}
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/**
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* Calculates the MRD for the depth format. MRD is used in depth bias
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* for UNORM and unbound depth buffers. When the depth buffer is floating
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* point, the depth bias calculation does not use the MRD. However, the
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* default MRD will be 1.0 / ((1 << 24) - 1).
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*/
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double
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util_get_depth_format_mrd(const struct util_format_description *desc)
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{
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/*
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* Depth buffer formats without a depth component OR scenarios
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* without a bound depth buffer default to D24.
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*/
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double mrd = 1.0 / ((1 << 24) - 1);
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unsigned depth_channel;
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assert(desc);
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/*
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* Some depth formats do not store the depth component in the first
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* channel, detect the format and adjust the depth channel. Get the
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* swizzled depth component channel.
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*/
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depth_channel = desc->swizzle[0];
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if (desc->channel[depth_channel].type == UTIL_FORMAT_TYPE_UNSIGNED &&
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desc->channel[depth_channel].normalized) {
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int depth_bits;
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depth_bits = desc->channel[depth_channel].size;
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mrd = 1.0 / ((1ULL << depth_bits) - 1);
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}
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return mrd;
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}
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void
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util_format_read_4f(enum pipe_format format,
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float *dst, unsigned dst_stride,
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const void *src, unsigned src_stride,
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unsigned x, unsigned y, unsigned w, unsigned h)
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{
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const struct util_format_description *format_desc;
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const uint8_t *src_row;
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float *dst_row;
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format_desc = util_format_description(format);
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assert(x % format_desc->block.width == 0);
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assert(y % format_desc->block.height == 0);
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src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8);
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dst_row = dst;
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format_desc->unpack_rgba_float(dst_row, dst_stride, src_row, src_stride, w, h);
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}
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void
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util_format_write_4f(enum pipe_format format,
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const float *src, unsigned src_stride,
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void *dst, unsigned dst_stride,
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unsigned x, unsigned y, unsigned w, unsigned h)
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{
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const struct util_format_description *format_desc;
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uint8_t *dst_row;
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const float *src_row;
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format_desc = util_format_description(format);
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assert(x % format_desc->block.width == 0);
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assert(y % format_desc->block.height == 0);
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dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8);
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src_row = src;
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format_desc->pack_rgba_float(dst_row, dst_stride, src_row, src_stride, w, h);
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}
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void
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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)
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{
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const struct util_format_description *format_desc;
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const uint8_t *src_row;
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uint8_t *dst_row;
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format_desc = util_format_description(format);
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assert(x % format_desc->block.width == 0);
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assert(y % format_desc->block.height == 0);
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src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8);
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dst_row = dst;
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format_desc->unpack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, w, h);
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}
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void
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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)
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{
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const struct util_format_description *format_desc;
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uint8_t *dst_row;
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const uint8_t *src_row;
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format_desc = util_format_description(format);
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assert(x % format_desc->block.width == 0);
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assert(y % format_desc->block.height == 0);
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dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8);
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src_row = src;
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format_desc->pack_rgba_8unorm(dst_row, dst_stride, src_row, src_stride, w, h);
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}
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void
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util_format_read_4ui(enum pipe_format format,
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unsigned *dst, unsigned dst_stride,
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const void *src, unsigned src_stride,
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unsigned x, unsigned y, unsigned w, unsigned h)
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{
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const struct util_format_description *format_desc;
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const uint8_t *src_row;
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uint32_t *dst_row;
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format_desc = util_format_description(format);
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assert(x % format_desc->block.width == 0);
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assert(y % format_desc->block.height == 0);
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src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8);
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dst_row = dst;
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format_desc->unpack_rgba_uint(dst_row, dst_stride, src_row, src_stride, w, h);
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}
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void
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util_format_write_4ui(enum pipe_format format,
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const unsigned int *src, unsigned src_stride,
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void *dst, unsigned dst_stride,
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unsigned x, unsigned y, unsigned w, unsigned h)
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{
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const struct util_format_description *format_desc;
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uint8_t *dst_row;
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const uint32_t *src_row;
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format_desc = util_format_description(format);
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assert(x % format_desc->block.width == 0);
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assert(y % format_desc->block.height == 0);
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dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8);
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src_row = src;
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format_desc->pack_rgba_uint(dst_row, dst_stride, src_row, src_stride, w, h);
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}
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void
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util_format_read_4i(enum pipe_format format,
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int *dst, unsigned dst_stride,
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const void *src, unsigned src_stride,
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unsigned x, unsigned y, unsigned w, unsigned h)
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{
|
const struct util_format_description *format_desc;
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const uint8_t *src_row;
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int32_t *dst_row;
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|
format_desc = util_format_description(format);
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assert(x % format_desc->block.width == 0);
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assert(y % format_desc->block.height == 0);
|
|
src_row = (const uint8_t *)src + y*src_stride + x*(format_desc->block.bits/8);
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dst_row = dst;
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format_desc->unpack_rgba_sint(dst_row, dst_stride, src_row, src_stride, w, h);
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}
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void
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util_format_write_4i(enum pipe_format format,
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const int *src, unsigned src_stride,
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void *dst, unsigned dst_stride,
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unsigned x, unsigned y, unsigned w, unsigned h)
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{
|
const struct util_format_description *format_desc;
|
uint8_t *dst_row;
|
const int32_t *src_row;
|
|
format_desc = util_format_description(format);
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|
assert(x % format_desc->block.width == 0);
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assert(y % format_desc->block.height == 0);
|
|
dst_row = (uint8_t *)dst + y*dst_stride + x*(format_desc->block.bits/8);
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src_row = src;
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format_desc->pack_rgba_sint(dst_row, dst_stride, src_row, src_stride, w, h);
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}
|
|
/**
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* Check if we can safely memcopy from the source format to the dest format.
|
* This basically covers the cases of a "used" channel copied to a typeless
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* channel, plus some 1-channel cases.
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* Examples of compatible copy formats include:
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* b8g8r8a8_unorm -> b8g8r8x8_unorm
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* a8r8g8b8_unorm -> x8r8g8b8_unorm
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* b5g5r5a1_unorm -> b5g5r5x1_unorm
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* b4g4r4a4_unorm -> b4g4r4x4_unorm
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* l8_unorm -> r8_unorm
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* i8_unorm -> l8_unorm
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* i8_unorm -> a8_unorm
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* i8_unorm -> r8_unorm
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* l16_unorm -> r16_unorm
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* z24_unorm_s8_uint -> z24x8_unorm
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* s8_uint_z24_unorm -> x8z24_unorm
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* r8g8b8a8_unorm -> r8g8b8x8_unorm
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* a8b8g8r8_srgb -> x8b8g8r8_srgb
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* b8g8r8a8_srgb -> b8g8r8x8_srgb
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* a8r8g8b8_srgb -> x8r8g8b8_srgb
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* a8b8g8r8_unorm -> x8b8g8r8_unorm
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* r10g10b10a2_uscaled -> r10g10b10x2_uscaled
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* r10sg10sb10sa2u_norm -> r10g10b10x2_snorm
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*/
|
boolean
|
util_is_format_compatible(const struct util_format_description *src_desc,
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const struct util_format_description *dst_desc)
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{
|
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 pipe_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:
|
/*
|
* These are straight forward.
|
*/
|
return TRUE;
|
case UTIL_FORMAT_LAYOUT_RGTC:
|
if (format_desc->format == PIPE_FORMAT_RGTC1_SNORM ||
|
format_desc->format == PIPE_FORMAT_RGTC2_SNORM ||
|
format_desc->format == PIPE_FORMAT_LATC1_SNORM ||
|
format_desc->format == PIPE_FORMAT_LATC2_SNORM)
|
return FALSE;
|
return TRUE;
|
case UTIL_FORMAT_LAYOUT_BPTC:
|
if (format_desc->format == PIPE_FORMAT_BPTC_RGBA_UNORM)
|
return TRUE;
|
return FALSE;
|
|
case UTIL_FORMAT_LAYOUT_ETC:
|
if (format_desc->format == PIPE_FORMAT_ETC1_RGB8)
|
return TRUE;
|
return FALSE;
|
|
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;
|
}
|
}
|
}
|
|
|
boolean
|
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 TRUE;
|
}
|
|
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 (src_format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS ||
|
dst_format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) {
|
float *tmp_z = NULL;
|
uint8_t *tmp_s = NULL;
|
|
assert(x_step == 1);
|
assert(y_step == 1);
|
|
if (src_format_desc->unpack_z_float &&
|
dst_format_desc->pack_z_float) {
|
tmp_z = MALLOC(width * sizeof *tmp_z);
|
}
|
|
if (src_format_desc->unpack_s_8uint &&
|
dst_format_desc->pack_s_8uint) {
|
tmp_s = MALLOC(width * sizeof *tmp_s);
|
}
|
|
while (height--) {
|
if (tmp_z) {
|
src_format_desc->unpack_z_float(tmp_z, 0, src_row, src_stride, width, 1);
|
dst_format_desc->pack_z_float(dst_row, dst_stride, tmp_z, 0, width, 1);
|
}
|
|
if (tmp_s) {
|
src_format_desc->unpack_s_8uint(tmp_s, 0, src_row, src_stride, width, 1);
|
dst_format_desc->pack_s_8uint(dst_row, dst_stride, tmp_s, 0, width, 1);
|
}
|
|
dst_row += dst_step;
|
src_row += src_step;
|
}
|
|
FREE(tmp_s);
|
|
FREE(tmp_z);
|
|
return TRUE;
|
}
|
|
if (util_format_fits_8unorm(src_format_desc) ||
|
util_format_fits_8unorm(dst_format_desc)) {
|
unsigned tmp_stride;
|
uint8_t *tmp_row;
|
|
if (!src_format_desc->unpack_rgba_8unorm ||
|
!dst_format_desc->pack_rgba_8unorm) {
|
return FALSE;
|
}
|
|
tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row;
|
tmp_row = MALLOC(y_step * tmp_stride);
|
if (!tmp_row)
|
return FALSE;
|
|
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;
|
|
if (!src_format_desc->unpack_rgba_float ||
|
!dst_format_desc->pack_rgba_float) {
|
return FALSE;
|
}
|
|
tmp_stride = MAX2(width, x_step) * 4 * sizeof *tmp_row;
|
tmp_row = MALLOC(y_step * tmp_stride);
|
if (!tmp_row)
|
return FALSE;
|
|
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);
|
}
|
return TRUE;
|
}
|
|
boolean
|
util_format_translate_3d(enum pipe_format dst_format,
|
void *dst, unsigned dst_stride,
|
unsigned dst_slice_stride,
|
unsigned dst_x, unsigned dst_y,
|
unsigned dst_z,
|
enum pipe_format src_format,
|
const void *src, unsigned src_stride,
|
unsigned src_slice_stride,
|
unsigned src_x, unsigned src_y,
|
unsigned src_z, unsigned width,
|
unsigned height, unsigned depth)
|
{
|
uint8_t *dst_layer;
|
const uint8_t *src_layer;
|
unsigned z;
|
dst_layer = dst;
|
src_layer = src;
|
dst_layer += dst_z * dst_slice_stride;
|
src_layer += src_z * src_slice_stride;
|
for (z = 0; z < depth; ++z) {
|
if (!util_format_translate(dst_format, dst_layer, dst_stride,
|
dst_x, dst_y,
|
src_format, src_layer, src_stride,
|
src_x, src_y,
|
width, height))
|
return FALSE;
|
|
dst_layer += dst_slice_stride;
|
src_layer += src_slice_stride;
|
}
|
return TRUE;
|
}
|
|
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] <= PIPE_SWIZZLE_W ?
|
swz1[swz2[i]] : swz2[i];
|
}
|
}
|
|
void util_format_apply_color_swizzle(union pipe_color_union *dst,
|
const union pipe_color_union *src,
|
const unsigned char swz[4],
|
const boolean is_integer)
|
{
|
unsigned c;
|
|
if (is_integer) {
|
for (c = 0; c < 4; ++c) {
|
switch (swz[c]) {
|
case PIPE_SWIZZLE_X: dst->ui[c] = src->ui[0]; break;
|
case PIPE_SWIZZLE_Y: dst->ui[c] = src->ui[1]; break;
|
case PIPE_SWIZZLE_Z: dst->ui[c] = src->ui[2]; break;
|
case PIPE_SWIZZLE_W: dst->ui[c] = src->ui[3]; break;
|
default:
|
dst->ui[c] = (swz[c] == PIPE_SWIZZLE_1) ? 1 : 0;
|
break;
|
}
|
}
|
} else {
|
for (c = 0; c < 4; ++c) {
|
switch (swz[c]) {
|
case PIPE_SWIZZLE_X: dst->f[c] = src->f[0]; break;
|
case PIPE_SWIZZLE_Y: dst->f[c] = src->f[1]; break;
|
case PIPE_SWIZZLE_Z: dst->f[c] = src->f[2]; break;
|
case PIPE_SWIZZLE_W: dst->f[c] = src->f[3]; break;
|
default:
|
dst->f[c] = (swz[c] == PIPE_SWIZZLE_1) ? 1.0f : 0.0f;
|
break;
|
}
|
}
|
}
|
}
|
|
void pipe_swizzle_4f(float *dst, const float *src,
|
const unsigned char swz[4])
|
{
|
unsigned i;
|
|
for (i = 0; i < 4; i++) {
|
if (swz[i] <= PIPE_SWIZZLE_W)
|
dst[i] = src[swz[i]];
|
else if (swz[i] == PIPE_SWIZZLE_0)
|
dst[i] = 0;
|
else if (swz[i] == PIPE_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 PIPE_SWIZZLE_X:
|
dst[0] = src[i];
|
break;
|
case PIPE_SWIZZLE_Y:
|
dst[1] = src[i];
|
break;
|
case PIPE_SWIZZLE_Z:
|
dst[2] = src[i];
|
break;
|
case PIPE_SWIZZLE_W:
|
dst[3] = src[i];
|
break;
|
}
|
}
|
}
|
