forked from KolibriOS/kolibrios
1434 lines
40 KiB
C
1434 lines
40 KiB
C
/*
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*
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* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
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* 2005 Lars Knoll & Zack Rusin, Trolltech
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* 2008 Aaron Plattner, NVIDIA Corporation
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
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* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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* SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdlib.h>
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#include <string.h>
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#include <assert.h>
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#include <math.h>
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#include "pixman-accessor.h"
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#include "pixman-private.h"
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#define CONVERT_RGB24_TO_Y15(s) \
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(((((s) >> 16) & 0xff) * 153 + \
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(((s) >> 8) & 0xff) * 301 + \
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(((s) ) & 0xff) * 58) >> 2)
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#define CONVERT_RGB24_TO_RGB15(s) \
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((((s) >> 3) & 0x001f) | \
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(((s) >> 6) & 0x03e0) | \
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(((s) >> 9) & 0x7c00))
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/* Fetch macros */
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#ifdef WORDS_BIGENDIAN
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#define FETCH_1(img,l,o) \
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(((READ ((img), ((uint32_t *)(l)) + ((o) >> 5))) >> (0x1f - ((o) & 0x1f))) & 0x1)
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#else
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#define FETCH_1(img,l,o) \
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((((READ ((img), ((uint32_t *)(l)) + ((o) >> 5))) >> ((o) & 0x1f))) & 0x1)
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#endif
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#define FETCH_8(img,l,o) (READ (img, (((uint8_t *)(l)) + ((o) >> 3))))
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#ifdef WORDS_BIGENDIAN
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#define FETCH_4(img,l,o) \
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(((4 * (o)) & 4) ? (FETCH_8 (img,l, 4 * (o)) & 0xf) : (FETCH_8 (img,l,(4 * (o))) >> 4))
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#else
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#define FETCH_4(img,l,o) \
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(((4 * (o)) & 4) ? (FETCH_8 (img, l, 4 * (o)) >> 4) : (FETCH_8 (img, l, (4 * (o))) & 0xf))
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#endif
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#ifdef WORDS_BIGENDIAN
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#define FETCH_24(img,l,o) \
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((READ (img, (((uint8_t *)(l)) + ((o) * 3) + 0)) << 16) | \
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(READ (img, (((uint8_t *)(l)) + ((o) * 3) + 1)) << 8) | \
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(READ (img, (((uint8_t *)(l)) + ((o) * 3) + 2)) << 0))
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#else
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#define FETCH_24(img,l,o) \
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((READ (img, (((uint8_t *)(l)) + ((o) * 3) + 0)) << 0) | \
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(READ (img, (((uint8_t *)(l)) + ((o) * 3) + 1)) << 8) | \
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(READ (img, (((uint8_t *)(l)) + ((o) * 3) + 2)) << 16))
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#endif
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/* Store macros */
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#ifdef WORDS_BIGENDIAN
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#define STORE_1(img,l,o,v) \
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do \
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{ \
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uint32_t *__d = ((uint32_t *)(l)) + ((o) >> 5); \
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uint32_t __m, __v; \
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\
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__m = 1 << (0x1f - ((o) & 0x1f)); \
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__v = (v)? __m : 0; \
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\
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WRITE((img), __d, (READ((img), __d) & ~__m) | __v); \
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} \
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while (0)
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#else
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#define STORE_1(img,l,o,v) \
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do \
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{ \
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uint32_t *__d = ((uint32_t *)(l)) + ((o) >> 5); \
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uint32_t __m, __v; \
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\
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__m = 1 << ((o) & 0x1f); \
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__v = (v)? __m : 0; \
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\
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WRITE((img), __d, (READ((img), __d) & ~__m) | __v); \
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} \
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while (0)
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#endif
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#define STORE_8(img,l,o,v) (WRITE (img, (uint8_t *)(l) + ((o) >> 3), (v)))
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#ifdef WORDS_BIGENDIAN
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#define STORE_4(img,l,o,v) \
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do \
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{ \
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int bo = 4 * (o); \
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int v4 = (v) & 0x0f; \
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\
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STORE_8 (img, l, bo, ( \
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bo & 4 ? \
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(FETCH_8 (img, l, bo) & 0xf0) | (v4) : \
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(FETCH_8 (img, l, bo) & 0x0f) | (v4 << 4))); \
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} while (0)
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#else
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#define STORE_4(img,l,o,v) \
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do \
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{ \
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int bo = 4 * (o); \
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int v4 = (v) & 0x0f; \
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\
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STORE_8 (img, l, bo, ( \
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bo & 4 ? \
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(FETCH_8 (img, l, bo) & 0x0f) | (v4 << 4) : \
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(FETCH_8 (img, l, bo) & 0xf0) | (v4))); \
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} while (0)
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#endif
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#ifdef WORDS_BIGENDIAN
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#define STORE_24(img,l,o,v) \
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do \
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{ \
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uint8_t *__tmp = (l) + 3 * (o); \
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\
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WRITE ((img), __tmp++, ((v) & 0x00ff0000) >> 16); \
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WRITE ((img), __tmp++, ((v) & 0x0000ff00) >> 8); \
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WRITE ((img), __tmp++, ((v) & 0x000000ff) >> 0); \
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} \
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while (0)
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#else
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#define STORE_24(img,l,o,v) \
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do \
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{ \
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uint8_t *__tmp = (l) + 3 * (o); \
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\
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WRITE ((img), __tmp++, ((v) & 0x000000ff) >> 0); \
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WRITE ((img), __tmp++, ((v) & 0x0000ff00) >> 8); \
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WRITE ((img), __tmp++, ((v) & 0x00ff0000) >> 16); \
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} \
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while (0)
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#endif
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/*
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* YV12 setup and access macros
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*/
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#define YV12_SETUP(image) \
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bits_image_t *__bits_image = (bits_image_t *)image; \
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uint32_t *bits = __bits_image->bits; \
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int stride = __bits_image->rowstride; \
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int offset0 = stride < 0 ? \
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((-stride) >> 1) * ((__bits_image->height - 1) >> 1) - stride : \
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stride * __bits_image->height; \
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int offset1 = stride < 0 ? \
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offset0 + ((-stride) >> 1) * ((__bits_image->height) >> 1) : \
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offset0 + (offset0 >> 2)
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/* Note no trailing semicolon on the above macro; if it's there, then
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* the typical usage of YV12_SETUP(image); will have an extra trailing ;
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* that some compilers will interpret as a statement -- and then any further
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* variable declarations will cause an error.
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*/
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#define YV12_Y(line) \
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((uint8_t *) ((bits) + (stride) * (line)))
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#define YV12_U(line) \
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((uint8_t *) ((bits) + offset1 + \
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((stride) >> 1) * ((line) >> 1)))
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#define YV12_V(line) \
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((uint8_t *) ((bits) + offset0 + \
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((stride) >> 1) * ((line) >> 1)))
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/* Misc. helpers */
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static force_inline void
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get_shifts (pixman_format_code_t format,
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int *a,
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int *r,
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int *g,
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int *b)
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{
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switch (PIXMAN_FORMAT_TYPE (format))
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{
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case PIXMAN_TYPE_A:
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*b = 0;
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*g = 0;
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*r = 0;
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*a = 0;
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break;
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case PIXMAN_TYPE_ARGB:
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case PIXMAN_TYPE_ARGB_SRGB:
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*b = 0;
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*g = *b + PIXMAN_FORMAT_B (format);
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*r = *g + PIXMAN_FORMAT_G (format);
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*a = *r + PIXMAN_FORMAT_R (format);
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break;
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case PIXMAN_TYPE_ABGR:
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*r = 0;
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*g = *r + PIXMAN_FORMAT_R (format);
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*b = *g + PIXMAN_FORMAT_G (format);
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*a = *b + PIXMAN_FORMAT_B (format);
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break;
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case PIXMAN_TYPE_BGRA:
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/* With BGRA formats we start counting at the high end of the pixel */
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*b = PIXMAN_FORMAT_BPP (format) - PIXMAN_FORMAT_B (format);
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*g = *b - PIXMAN_FORMAT_B (format);
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*r = *g - PIXMAN_FORMAT_G (format);
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*a = *r - PIXMAN_FORMAT_R (format);
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break;
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case PIXMAN_TYPE_RGBA:
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/* With BGRA formats we start counting at the high end of the pixel */
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*r = PIXMAN_FORMAT_BPP (format) - PIXMAN_FORMAT_R (format);
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*g = *r - PIXMAN_FORMAT_R (format);
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*b = *g - PIXMAN_FORMAT_G (format);
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*a = *b - PIXMAN_FORMAT_B (format);
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break;
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default:
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assert (0);
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break;
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}
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}
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static force_inline uint32_t
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convert_channel (uint32_t pixel, uint32_t def_value,
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int n_from_bits, int from_shift,
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int n_to_bits, int to_shift)
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{
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uint32_t v;
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if (n_from_bits && n_to_bits)
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v = unorm_to_unorm (pixel >> from_shift, n_from_bits, n_to_bits);
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else if (n_to_bits)
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v = def_value;
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else
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v = 0;
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return (v & ((1 << n_to_bits) - 1)) << to_shift;
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}
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static force_inline uint32_t
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convert_pixel (pixman_format_code_t from, pixman_format_code_t to, uint32_t pixel)
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{
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int a_from_shift, r_from_shift, g_from_shift, b_from_shift;
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int a_to_shift, r_to_shift, g_to_shift, b_to_shift;
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uint32_t a, r, g, b;
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get_shifts (from, &a_from_shift, &r_from_shift, &g_from_shift, &b_from_shift);
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get_shifts (to, &a_to_shift, &r_to_shift, &g_to_shift, &b_to_shift);
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a = convert_channel (pixel, ~0,
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PIXMAN_FORMAT_A (from), a_from_shift,
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PIXMAN_FORMAT_A (to), a_to_shift);
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r = convert_channel (pixel, 0,
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PIXMAN_FORMAT_R (from), r_from_shift,
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PIXMAN_FORMAT_R (to), r_to_shift);
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g = convert_channel (pixel, 0,
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PIXMAN_FORMAT_G (from), g_from_shift,
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PIXMAN_FORMAT_G (to), g_to_shift);
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b = convert_channel (pixel, 0,
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PIXMAN_FORMAT_B (from), b_from_shift,
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PIXMAN_FORMAT_B (to), b_to_shift);
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return a | r | g | b;
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}
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static force_inline uint32_t
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convert_pixel_to_a8r8g8b8 (pixman_image_t *image,
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pixman_format_code_t format,
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uint32_t pixel)
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{
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if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_GRAY ||
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PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_COLOR)
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{
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return image->bits.indexed->rgba[pixel];
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}
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else
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{
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return convert_pixel (format, PIXMAN_a8r8g8b8, pixel);
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}
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}
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static force_inline uint32_t
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convert_pixel_from_a8r8g8b8 (pixman_image_t *image,
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pixman_format_code_t format, uint32_t pixel)
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{
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if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_GRAY)
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{
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pixel = CONVERT_RGB24_TO_Y15 (pixel);
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return image->bits.indexed->ent[pixel & 0x7fff];
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}
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else if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_COLOR)
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{
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pixel = convert_pixel (PIXMAN_a8r8g8b8, PIXMAN_x1r5g5b5, pixel);
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return image->bits.indexed->ent[pixel & 0x7fff];
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}
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else
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{
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return convert_pixel (PIXMAN_a8r8g8b8, format, pixel);
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}
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}
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static force_inline uint32_t
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fetch_and_convert_pixel (pixman_image_t * image,
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const uint8_t * bits,
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int offset,
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pixman_format_code_t format)
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{
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uint32_t pixel;
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switch (PIXMAN_FORMAT_BPP (format))
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{
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case 1:
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pixel = FETCH_1 (image, bits, offset);
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break;
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case 4:
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pixel = FETCH_4 (image, bits, offset);
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break;
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case 8:
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pixel = READ (image, bits + offset);
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break;
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case 16:
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pixel = READ (image, ((uint16_t *)bits + offset));
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break;
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case 24:
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pixel = FETCH_24 (image, bits, offset);
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break;
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case 32:
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pixel = READ (image, ((uint32_t *)bits + offset));
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break;
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default:
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pixel = 0xffff00ff; /* As ugly as possible to detect the bug */
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break;
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}
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return convert_pixel_to_a8r8g8b8 (image, format, pixel);
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}
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static force_inline void
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convert_and_store_pixel (bits_image_t * image,
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uint8_t * dest,
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int offset,
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pixman_format_code_t format,
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uint32_t pixel)
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{
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uint32_t converted = convert_pixel_from_a8r8g8b8 (
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(pixman_image_t *)image, format, pixel);
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switch (PIXMAN_FORMAT_BPP (format))
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{
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case 1:
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STORE_1 (image, dest, offset, converted & 0x01);
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break;
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case 4:
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STORE_4 (image, dest, offset, converted & 0xf);
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break;
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case 8:
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WRITE (image, (dest + offset), converted & 0xff);
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break;
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case 16:
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WRITE (image, ((uint16_t *)dest + offset), converted & 0xffff);
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break;
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case 24:
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STORE_24 (image, dest, offset, converted);
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break;
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case 32:
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WRITE (image, ((uint32_t *)dest + offset), converted);
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break;
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default:
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*dest = 0x0;
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break;
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}
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}
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#define MAKE_ACCESSORS(format) \
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static void \
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fetch_scanline_ ## format (pixman_image_t *image, \
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int x, \
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int y, \
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int width, \
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uint32_t * buffer, \
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const uint32_t *mask) \
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{ \
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uint8_t *bits = \
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(uint8_t *)(image->bits.bits + y * image->bits.rowstride); \
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int i; \
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\
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for (i = 0; i < width; ++i) \
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{ \
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*buffer++ = \
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fetch_and_convert_pixel (image, bits, x + i, PIXMAN_ ## format); \
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} \
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} \
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\
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static void \
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store_scanline_ ## format (bits_image_t * image, \
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int x, \
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int y, \
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int width, \
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const uint32_t *values) \
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{ \
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uint8_t *dest = \
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(uint8_t *)(image->bits + y * image->rowstride); \
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int i; \
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\
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for (i = 0; i < width; ++i) \
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{ \
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convert_and_store_pixel ( \
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image, dest, i + x, PIXMAN_ ## format, values[i]); \
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} \
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} \
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\
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static uint32_t \
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fetch_pixel_ ## format (bits_image_t *image, \
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int offset, \
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int line) \
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{ \
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uint8_t *bits = \
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(uint8_t *)(image->bits + line * image->rowstride); \
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\
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return fetch_and_convert_pixel ((pixman_image_t *)image, \
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bits, offset, PIXMAN_ ## format); \
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} \
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\
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static const void *const __dummy__ ## format
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|
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MAKE_ACCESSORS(a8r8g8b8);
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MAKE_ACCESSORS(x8r8g8b8);
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MAKE_ACCESSORS(a8b8g8r8);
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MAKE_ACCESSORS(x8b8g8r8);
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MAKE_ACCESSORS(x14r6g6b6);
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MAKE_ACCESSORS(b8g8r8a8);
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MAKE_ACCESSORS(b8g8r8x8);
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MAKE_ACCESSORS(r8g8b8x8);
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MAKE_ACCESSORS(r8g8b8a8);
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MAKE_ACCESSORS(r8g8b8);
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MAKE_ACCESSORS(b8g8r8);
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MAKE_ACCESSORS(r5g6b5);
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MAKE_ACCESSORS(b5g6r5);
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MAKE_ACCESSORS(a1r5g5b5);
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MAKE_ACCESSORS(x1r5g5b5);
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MAKE_ACCESSORS(a1b5g5r5);
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MAKE_ACCESSORS(x1b5g5r5);
|
|
MAKE_ACCESSORS(a4r4g4b4);
|
|
MAKE_ACCESSORS(x4r4g4b4);
|
|
MAKE_ACCESSORS(a4b4g4r4);
|
|
MAKE_ACCESSORS(x4b4g4r4);
|
|
MAKE_ACCESSORS(a8);
|
|
MAKE_ACCESSORS(c8);
|
|
MAKE_ACCESSORS(g8);
|
|
MAKE_ACCESSORS(r3g3b2);
|
|
MAKE_ACCESSORS(b2g3r3);
|
|
MAKE_ACCESSORS(a2r2g2b2);
|
|
MAKE_ACCESSORS(a2b2g2r2);
|
|
MAKE_ACCESSORS(x4a4);
|
|
MAKE_ACCESSORS(a4);
|
|
MAKE_ACCESSORS(g4);
|
|
MAKE_ACCESSORS(c4);
|
|
MAKE_ACCESSORS(r1g2b1);
|
|
MAKE_ACCESSORS(b1g2r1);
|
|
MAKE_ACCESSORS(a1r1g1b1);
|
|
MAKE_ACCESSORS(a1b1g1r1);
|
|
MAKE_ACCESSORS(a1);
|
|
MAKE_ACCESSORS(g1);
|
|
|
|
/********************************** Fetch ************************************/
|
|
/* Table mapping sRGB-encoded 8 bit numbers to linearly encoded
|
|
* floating point numbers. We assume that single precision
|
|
* floating point follows the IEEE 754 format.
|
|
*/
|
|
static const uint32_t to_linear_u[256] =
|
|
{
|
|
0x00000000, 0x399f22b4, 0x3a1f22b4, 0x3a6eb40e, 0x3a9f22b4, 0x3ac6eb61,
|
|
0x3aeeb40e, 0x3b0b3e5d, 0x3b1f22b4, 0x3b33070b, 0x3b46eb61, 0x3b5b518a,
|
|
0x3b70f18a, 0x3b83e1c5, 0x3b8fe614, 0x3b9c87fb, 0x3ba9c9b5, 0x3bb7ad6d,
|
|
0x3bc63547, 0x3bd5635f, 0x3be539bd, 0x3bf5ba70, 0x3c0373b5, 0x3c0c6152,
|
|
0x3c15a703, 0x3c1f45bc, 0x3c293e68, 0x3c3391f4, 0x3c3e4149, 0x3c494d43,
|
|
0x3c54b6c7, 0x3c607eb1, 0x3c6ca5df, 0x3c792d22, 0x3c830aa8, 0x3c89af9e,
|
|
0x3c9085db, 0x3c978dc5, 0x3c9ec7c0, 0x3ca63432, 0x3cadd37d, 0x3cb5a601,
|
|
0x3cbdac20, 0x3cc5e639, 0x3cce54ab, 0x3cd6f7d2, 0x3cdfd00e, 0x3ce8ddb9,
|
|
0x3cf2212c, 0x3cfb9ac1, 0x3d02a569, 0x3d0798dc, 0x3d0ca7e4, 0x3d11d2ae,
|
|
0x3d171963, 0x3d1c7c2e, 0x3d21fb3a, 0x3d2796af, 0x3d2d4ebb, 0x3d332380,
|
|
0x3d39152b, 0x3d3f23e3, 0x3d454fd0, 0x3d4b991c, 0x3d51ffeb, 0x3d588466,
|
|
0x3d5f26b7, 0x3d65e6fe, 0x3d6cc564, 0x3d73c210, 0x3d7add25, 0x3d810b65,
|
|
0x3d84b793, 0x3d88732e, 0x3d8c3e48, 0x3d9018f4, 0x3d940343, 0x3d97fd48,
|
|
0x3d9c0714, 0x3da020b9, 0x3da44a48, 0x3da883d6, 0x3daccd70, 0x3db12728,
|
|
0x3db59110, 0x3dba0b38, 0x3dbe95b2, 0x3dc3308f, 0x3dc7dbe0, 0x3dcc97b4,
|
|
0x3dd1641c, 0x3dd6412a, 0x3ddb2eec, 0x3de02d75, 0x3de53cd3, 0x3dea5d16,
|
|
0x3def8e52, 0x3df4d091, 0x3dfa23e5, 0x3dff885e, 0x3e027f06, 0x3e05427f,
|
|
0x3e080ea2, 0x3e0ae376, 0x3e0dc104, 0x3e10a752, 0x3e139669, 0x3e168e50,
|
|
0x3e198f0e, 0x3e1c98ab, 0x3e1fab2e, 0x3e22c6a0, 0x3e25eb08, 0x3e29186a,
|
|
0x3e2c4ed0, 0x3e2f8e42, 0x3e32d6c4, 0x3e362861, 0x3e39831e, 0x3e3ce702,
|
|
0x3e405416, 0x3e43ca5e, 0x3e4749e4, 0x3e4ad2ae, 0x3e4e64c2, 0x3e520027,
|
|
0x3e55a4e6, 0x3e595303, 0x3e5d0a8a, 0x3e60cb7c, 0x3e6495e0, 0x3e6869bf,
|
|
0x3e6c4720, 0x3e702e08, 0x3e741e7f, 0x3e78188c, 0x3e7c1c34, 0x3e8014c0,
|
|
0x3e822039, 0x3e84308b, 0x3e8645b8, 0x3e885fc3, 0x3e8a7eb0, 0x3e8ca281,
|
|
0x3e8ecb3a, 0x3e90f8df, 0x3e932b72, 0x3e9562f6, 0x3e979f6f, 0x3e99e0e0,
|
|
0x3e9c274e, 0x3e9e72b8, 0x3ea0c322, 0x3ea31892, 0x3ea57308, 0x3ea7d28a,
|
|
0x3eaa3718, 0x3eaca0b7, 0x3eaf0f69, 0x3eb18332, 0x3eb3fc16, 0x3eb67a15,
|
|
0x3eb8fd34, 0x3ebb8576, 0x3ebe12de, 0x3ec0a56e, 0x3ec33d2a, 0x3ec5da14,
|
|
0x3ec87c30, 0x3ecb2380, 0x3ecdd008, 0x3ed081ca, 0x3ed338c9, 0x3ed5f508,
|
|
0x3ed8b68a, 0x3edb7d52, 0x3ede4962, 0x3ee11abe, 0x3ee3f168, 0x3ee6cd64,
|
|
0x3ee9aeb6, 0x3eec955d, 0x3eef815d, 0x3ef272ba, 0x3ef56976, 0x3ef86594,
|
|
0x3efb6717, 0x3efe6e02, 0x3f00bd2b, 0x3f02460c, 0x3f03d1a5, 0x3f055ff8,
|
|
0x3f06f105, 0x3f0884ce, 0x3f0a1b54, 0x3f0bb499, 0x3f0d509f, 0x3f0eef65,
|
|
0x3f1090ef, 0x3f12353c, 0x3f13dc50, 0x3f15862a, 0x3f1732cc, 0x3f18e237,
|
|
0x3f1a946d, 0x3f1c4970, 0x3f1e013f, 0x3f1fbbde, 0x3f21794c, 0x3f23398c,
|
|
0x3f24fca0, 0x3f26c286, 0x3f288b42, 0x3f2a56d3, 0x3f2c253d, 0x3f2df680,
|
|
0x3f2fca9d, 0x3f31a195, 0x3f337b6a, 0x3f35581e, 0x3f3737b1, 0x3f391a24,
|
|
0x3f3aff7a, 0x3f3ce7b2, 0x3f3ed2d0, 0x3f40c0d2, 0x3f42b1bc, 0x3f44a58e,
|
|
0x3f469c49, 0x3f4895ee, 0x3f4a9280, 0x3f4c91ff, 0x3f4e946c, 0x3f5099c8,
|
|
0x3f52a216, 0x3f54ad55, 0x3f56bb88, 0x3f58ccae, 0x3f5ae0cb, 0x3f5cf7de,
|
|
0x3f5f11ec, 0x3f612ef0, 0x3f634eef, 0x3f6571ea, 0x3f6797e1, 0x3f69c0d6,
|
|
0x3f6beccb, 0x3f6e1bc0, 0x3f704db6, 0x3f7282af, 0x3f74baac, 0x3f76f5ae,
|
|
0x3f7933b6, 0x3f7b74c6, 0x3f7db8de, 0x3f800000
|
|
};
|
|
|
|
static const float * const to_linear = (const float *)to_linear_u;
|
|
|
|
static uint8_t
|
|
to_srgb (float f)
|
|
{
|
|
uint8_t low = 0;
|
|
uint8_t high = 255;
|
|
|
|
while (high - low > 1)
|
|
{
|
|
uint8_t mid = (low + high) / 2;
|
|
|
|
if (to_linear[mid] > f)
|
|
high = mid;
|
|
else
|
|
low = mid;
|
|
}
|
|
|
|
if (to_linear[high] - f < f - to_linear[low])
|
|
return high;
|
|
else
|
|
return low;
|
|
}
|
|
|
|
static void
|
|
fetch_scanline_a8r8g8b8_sRGB_float (pixman_image_t *image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
uint32_t * b,
|
|
const uint32_t *mask)
|
|
{
|
|
const uint32_t *bits = image->bits.bits + y * image->bits.rowstride;
|
|
const uint32_t *pixel = bits + x;
|
|
const uint32_t *end = pixel + width;
|
|
argb_t *buffer = (argb_t *)b;
|
|
|
|
while (pixel < end)
|
|
{
|
|
uint32_t p = READ (image, pixel++);
|
|
argb_t *argb = buffer;
|
|
|
|
argb->a = pixman_unorm_to_float ((p >> 24) & 0xff, 8);
|
|
|
|
argb->r = to_linear [(p >> 16) & 0xff];
|
|
argb->g = to_linear [(p >> 8) & 0xff];
|
|
argb->b = to_linear [(p >> 0) & 0xff];
|
|
|
|
buffer++;
|
|
}
|
|
}
|
|
|
|
/* Expects a float buffer */
|
|
static void
|
|
fetch_scanline_a2r10g10b10_float (pixman_image_t *image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
uint32_t * b,
|
|
const uint32_t *mask)
|
|
{
|
|
const uint32_t *bits = image->bits.bits + y * image->bits.rowstride;
|
|
const uint32_t *pixel = bits + x;
|
|
const uint32_t *end = pixel + width;
|
|
argb_t *buffer = (argb_t *)b;
|
|
|
|
while (pixel < end)
|
|
{
|
|
uint32_t p = READ (image, pixel++);
|
|
uint64_t a = p >> 30;
|
|
uint64_t r = (p >> 20) & 0x3ff;
|
|
uint64_t g = (p >> 10) & 0x3ff;
|
|
uint64_t b = p & 0x3ff;
|
|
|
|
buffer->a = pixman_unorm_to_float (a, 2);
|
|
buffer->r = pixman_unorm_to_float (r, 10);
|
|
buffer->g = pixman_unorm_to_float (g, 10);
|
|
buffer->b = pixman_unorm_to_float (b, 10);
|
|
|
|
buffer++;
|
|
}
|
|
}
|
|
|
|
/* Expects a float buffer */
|
|
static void
|
|
fetch_scanline_x2r10g10b10_float (pixman_image_t *image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
uint32_t * b,
|
|
const uint32_t *mask)
|
|
{
|
|
const uint32_t *bits = image->bits.bits + y * image->bits.rowstride;
|
|
const uint32_t *pixel = (uint32_t *)bits + x;
|
|
const uint32_t *end = pixel + width;
|
|
argb_t *buffer = (argb_t *)b;
|
|
|
|
while (pixel < end)
|
|
{
|
|
uint32_t p = READ (image, pixel++);
|
|
uint64_t r = (p >> 20) & 0x3ff;
|
|
uint64_t g = (p >> 10) & 0x3ff;
|
|
uint64_t b = p & 0x3ff;
|
|
|
|
buffer->a = 1.0;
|
|
buffer->r = pixman_unorm_to_float (r, 10);
|
|
buffer->g = pixman_unorm_to_float (g, 10);
|
|
buffer->b = pixman_unorm_to_float (b, 10);
|
|
|
|
buffer++;
|
|
}
|
|
}
|
|
|
|
/* Expects a float buffer */
|
|
static void
|
|
fetch_scanline_a2b10g10r10_float (pixman_image_t *image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
uint32_t * b,
|
|
const uint32_t *mask)
|
|
{
|
|
const uint32_t *bits = image->bits.bits + y * image->bits.rowstride;
|
|
const uint32_t *pixel = bits + x;
|
|
const uint32_t *end = pixel + width;
|
|
argb_t *buffer = (argb_t *)b;
|
|
|
|
while (pixel < end)
|
|
{
|
|
uint32_t p = READ (image, pixel++);
|
|
uint64_t a = p >> 30;
|
|
uint64_t b = (p >> 20) & 0x3ff;
|
|
uint64_t g = (p >> 10) & 0x3ff;
|
|
uint64_t r = p & 0x3ff;
|
|
|
|
buffer->a = pixman_unorm_to_float (a, 2);
|
|
buffer->r = pixman_unorm_to_float (r, 10);
|
|
buffer->g = pixman_unorm_to_float (g, 10);
|
|
buffer->b = pixman_unorm_to_float (b, 10);
|
|
|
|
buffer++;
|
|
}
|
|
}
|
|
|
|
/* Expects a float buffer */
|
|
static void
|
|
fetch_scanline_x2b10g10r10_float (pixman_image_t *image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
uint32_t * b,
|
|
const uint32_t *mask)
|
|
{
|
|
const uint32_t *bits = image->bits.bits + y * image->bits.rowstride;
|
|
const uint32_t *pixel = (uint32_t *)bits + x;
|
|
const uint32_t *end = pixel + width;
|
|
argb_t *buffer = (argb_t *)b;
|
|
|
|
while (pixel < end)
|
|
{
|
|
uint32_t p = READ (image, pixel++);
|
|
uint64_t b = (p >> 20) & 0x3ff;
|
|
uint64_t g = (p >> 10) & 0x3ff;
|
|
uint64_t r = p & 0x3ff;
|
|
|
|
buffer->a = 1.0;
|
|
buffer->r = pixman_unorm_to_float (r, 10);
|
|
buffer->g = pixman_unorm_to_float (g, 10);
|
|
buffer->b = pixman_unorm_to_float (b, 10);
|
|
|
|
buffer++;
|
|
}
|
|
}
|
|
|
|
static void
|
|
fetch_scanline_yuy2 (pixman_image_t *image,
|
|
int x,
|
|
int line,
|
|
int width,
|
|
uint32_t * buffer,
|
|
const uint32_t *mask)
|
|
{
|
|
const uint32_t *bits = image->bits.bits + image->bits.rowstride * line;
|
|
int i;
|
|
|
|
for (i = 0; i < width; i++)
|
|
{
|
|
int16_t y, u, v;
|
|
int32_t r, g, b;
|
|
|
|
y = ((uint8_t *) bits)[(x + i) << 1] - 16;
|
|
u = ((uint8_t *) bits)[(((x + i) << 1) & - 4) + 1] - 128;
|
|
v = ((uint8_t *) bits)[(((x + i) << 1) & - 4) + 3] - 128;
|
|
|
|
/* R = 1.164(Y - 16) + 1.596(V - 128) */
|
|
r = 0x012b27 * y + 0x019a2e * v;
|
|
/* G = 1.164(Y - 16) - 0.813(V - 128) - 0.391(U - 128) */
|
|
g = 0x012b27 * y - 0x00d0f2 * v - 0x00647e * u;
|
|
/* B = 1.164(Y - 16) + 2.018(U - 128) */
|
|
b = 0x012b27 * y + 0x0206a2 * u;
|
|
|
|
*buffer++ = 0xff000000 |
|
|
(r >= 0 ? r < 0x1000000 ? r & 0xff0000 : 0xff0000 : 0) |
|
|
(g >= 0 ? g < 0x1000000 ? (g >> 8) & 0x00ff00 : 0x00ff00 : 0) |
|
|
(b >= 0 ? b < 0x1000000 ? (b >> 16) & 0x0000ff : 0x0000ff : 0);
|
|
}
|
|
}
|
|
|
|
static void
|
|
fetch_scanline_yv12 (pixman_image_t *image,
|
|
int x,
|
|
int line,
|
|
int width,
|
|
uint32_t * buffer,
|
|
const uint32_t *mask)
|
|
{
|
|
YV12_SETUP (image);
|
|
uint8_t *y_line = YV12_Y (line);
|
|
uint8_t *u_line = YV12_U (line);
|
|
uint8_t *v_line = YV12_V (line);
|
|
int i;
|
|
|
|
for (i = 0; i < width; i++)
|
|
{
|
|
int16_t y, u, v;
|
|
int32_t r, g, b;
|
|
|
|
y = y_line[x + i] - 16;
|
|
u = u_line[(x + i) >> 1] - 128;
|
|
v = v_line[(x + i) >> 1] - 128;
|
|
|
|
/* R = 1.164(Y - 16) + 1.596(V - 128) */
|
|
r = 0x012b27 * y + 0x019a2e * v;
|
|
/* G = 1.164(Y - 16) - 0.813(V - 128) - 0.391(U - 128) */
|
|
g = 0x012b27 * y - 0x00d0f2 * v - 0x00647e * u;
|
|
/* B = 1.164(Y - 16) + 2.018(U - 128) */
|
|
b = 0x012b27 * y + 0x0206a2 * u;
|
|
|
|
*buffer++ = 0xff000000 |
|
|
(r >= 0 ? r < 0x1000000 ? r & 0xff0000 : 0xff0000 : 0) |
|
|
(g >= 0 ? g < 0x1000000 ? (g >> 8) & 0x00ff00 : 0x00ff00 : 0) |
|
|
(b >= 0 ? b < 0x1000000 ? (b >> 16) & 0x0000ff : 0x0000ff : 0);
|
|
}
|
|
}
|
|
|
|
/**************************** Pixel wise fetching *****************************/
|
|
|
|
static argb_t
|
|
fetch_pixel_x2r10g10b10_float (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
uint32_t *bits = image->bits + line * image->rowstride;
|
|
uint32_t p = READ (image, bits + offset);
|
|
uint64_t r = (p >> 20) & 0x3ff;
|
|
uint64_t g = (p >> 10) & 0x3ff;
|
|
uint64_t b = p & 0x3ff;
|
|
argb_t argb;
|
|
|
|
argb.a = 1.0;
|
|
argb.r = pixman_unorm_to_float (r, 10);
|
|
argb.g = pixman_unorm_to_float (g, 10);
|
|
argb.b = pixman_unorm_to_float (b, 10);
|
|
|
|
return argb;
|
|
}
|
|
|
|
static argb_t
|
|
fetch_pixel_a2r10g10b10_float (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
uint32_t *bits = image->bits + line * image->rowstride;
|
|
uint32_t p = READ (image, bits + offset);
|
|
uint64_t a = p >> 30;
|
|
uint64_t r = (p >> 20) & 0x3ff;
|
|
uint64_t g = (p >> 10) & 0x3ff;
|
|
uint64_t b = p & 0x3ff;
|
|
argb_t argb;
|
|
|
|
argb.a = pixman_unorm_to_float (a, 2);
|
|
argb.r = pixman_unorm_to_float (r, 10);
|
|
argb.g = pixman_unorm_to_float (g, 10);
|
|
argb.b = pixman_unorm_to_float (b, 10);
|
|
|
|
return argb;
|
|
}
|
|
|
|
static argb_t
|
|
fetch_pixel_a2b10g10r10_float (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
uint32_t *bits = image->bits + line * image->rowstride;
|
|
uint32_t p = READ (image, bits + offset);
|
|
uint64_t a = p >> 30;
|
|
uint64_t b = (p >> 20) & 0x3ff;
|
|
uint64_t g = (p >> 10) & 0x3ff;
|
|
uint64_t r = p & 0x3ff;
|
|
argb_t argb;
|
|
|
|
argb.a = pixman_unorm_to_float (a, 2);
|
|
argb.r = pixman_unorm_to_float (r, 10);
|
|
argb.g = pixman_unorm_to_float (g, 10);
|
|
argb.b = pixman_unorm_to_float (b, 10);
|
|
|
|
return argb;
|
|
}
|
|
|
|
static argb_t
|
|
fetch_pixel_x2b10g10r10_float (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
uint32_t *bits = image->bits + line * image->rowstride;
|
|
uint32_t p = READ (image, bits + offset);
|
|
uint64_t b = (p >> 20) & 0x3ff;
|
|
uint64_t g = (p >> 10) & 0x3ff;
|
|
uint64_t r = p & 0x3ff;
|
|
argb_t argb;
|
|
|
|
argb.a = 1.0;
|
|
argb.r = pixman_unorm_to_float (r, 10);
|
|
argb.g = pixman_unorm_to_float (g, 10);
|
|
argb.b = pixman_unorm_to_float (b, 10);
|
|
|
|
return argb;
|
|
}
|
|
|
|
static argb_t
|
|
fetch_pixel_a8r8g8b8_sRGB_float (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
uint32_t *bits = image->bits + line * image->rowstride;
|
|
uint32_t p = READ (image, bits + offset);
|
|
argb_t argb;
|
|
|
|
argb.a = pixman_unorm_to_float ((p >> 24) & 0xff, 8);
|
|
|
|
argb.r = to_linear [(p >> 16) & 0xff];
|
|
argb.g = to_linear [(p >> 8) & 0xff];
|
|
argb.b = to_linear [(p >> 0) & 0xff];
|
|
|
|
return argb;
|
|
}
|
|
|
|
static uint32_t
|
|
fetch_pixel_yuy2 (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
const uint32_t *bits = image->bits + image->rowstride * line;
|
|
|
|
int16_t y, u, v;
|
|
int32_t r, g, b;
|
|
|
|
y = ((uint8_t *) bits)[offset << 1] - 16;
|
|
u = ((uint8_t *) bits)[((offset << 1) & - 4) + 1] - 128;
|
|
v = ((uint8_t *) bits)[((offset << 1) & - 4) + 3] - 128;
|
|
|
|
/* R = 1.164(Y - 16) + 1.596(V - 128) */
|
|
r = 0x012b27 * y + 0x019a2e * v;
|
|
|
|
/* G = 1.164(Y - 16) - 0.813(V - 128) - 0.391(U - 128) */
|
|
g = 0x012b27 * y - 0x00d0f2 * v - 0x00647e * u;
|
|
|
|
/* B = 1.164(Y - 16) + 2.018(U - 128) */
|
|
b = 0x012b27 * y + 0x0206a2 * u;
|
|
|
|
return 0xff000000 |
|
|
(r >= 0 ? r < 0x1000000 ? r & 0xff0000 : 0xff0000 : 0) |
|
|
(g >= 0 ? g < 0x1000000 ? (g >> 8) & 0x00ff00 : 0x00ff00 : 0) |
|
|
(b >= 0 ? b < 0x1000000 ? (b >> 16) & 0x0000ff : 0x0000ff : 0);
|
|
}
|
|
|
|
static uint32_t
|
|
fetch_pixel_yv12 (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
YV12_SETUP (image);
|
|
int16_t y = YV12_Y (line)[offset] - 16;
|
|
int16_t u = YV12_U (line)[offset >> 1] - 128;
|
|
int16_t v = YV12_V (line)[offset >> 1] - 128;
|
|
int32_t r, g, b;
|
|
|
|
/* R = 1.164(Y - 16) + 1.596(V - 128) */
|
|
r = 0x012b27 * y + 0x019a2e * v;
|
|
|
|
/* G = 1.164(Y - 16) - 0.813(V - 128) - 0.391(U - 128) */
|
|
g = 0x012b27 * y - 0x00d0f2 * v - 0x00647e * u;
|
|
|
|
/* B = 1.164(Y - 16) + 2.018(U - 128) */
|
|
b = 0x012b27 * y + 0x0206a2 * u;
|
|
|
|
return 0xff000000 |
|
|
(r >= 0 ? r < 0x1000000 ? r & 0xff0000 : 0xff0000 : 0) |
|
|
(g >= 0 ? g < 0x1000000 ? (g >> 8) & 0x00ff00 : 0x00ff00 : 0) |
|
|
(b >= 0 ? b < 0x1000000 ? (b >> 16) & 0x0000ff : 0x0000ff : 0);
|
|
}
|
|
|
|
/*********************************** Store ************************************/
|
|
|
|
static void
|
|
store_scanline_a2r10g10b10_float (bits_image_t * image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
const uint32_t *v)
|
|
{
|
|
uint32_t *bits = image->bits + image->rowstride * y;
|
|
uint32_t *pixel = bits + x;
|
|
argb_t *values = (argb_t *)v;
|
|
int i;
|
|
|
|
for (i = 0; i < width; ++i)
|
|
{
|
|
uint16_t a, r, g, b;
|
|
|
|
a = pixman_float_to_unorm (values[i].a, 2);
|
|
r = pixman_float_to_unorm (values[i].r, 10);
|
|
g = pixman_float_to_unorm (values[i].g, 10);
|
|
b = pixman_float_to_unorm (values[i].b, 10);
|
|
|
|
WRITE (image, pixel++,
|
|
(a << 30) | (r << 20) | (g << 10) | b);
|
|
}
|
|
}
|
|
|
|
static void
|
|
store_scanline_x2r10g10b10_float (bits_image_t * image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
const uint32_t *v)
|
|
{
|
|
uint32_t *bits = image->bits + image->rowstride * y;
|
|
uint32_t *pixel = bits + x;
|
|
argb_t *values = (argb_t *)v;
|
|
int i;
|
|
|
|
for (i = 0; i < width; ++i)
|
|
{
|
|
uint16_t r, g, b;
|
|
|
|
r = pixman_float_to_unorm (values[i].r, 10);
|
|
g = pixman_float_to_unorm (values[i].g, 10);
|
|
b = pixman_float_to_unorm (values[i].b, 10);
|
|
|
|
WRITE (image, pixel++,
|
|
(r << 20) | (g << 10) | b);
|
|
}
|
|
}
|
|
|
|
static void
|
|
store_scanline_a2b10g10r10_float (bits_image_t * image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
const uint32_t *v)
|
|
{
|
|
uint32_t *bits = image->bits + image->rowstride * y;
|
|
uint32_t *pixel = bits + x;
|
|
argb_t *values = (argb_t *)v;
|
|
int i;
|
|
|
|
for (i = 0; i < width; ++i)
|
|
{
|
|
uint16_t a, r, g, b;
|
|
|
|
a = pixman_float_to_unorm (values[i].a, 2);
|
|
r = pixman_float_to_unorm (values[i].r, 10);
|
|
g = pixman_float_to_unorm (values[i].g, 10);
|
|
b = pixman_float_to_unorm (values[i].b, 10);
|
|
|
|
WRITE (image, pixel++,
|
|
(a << 30) | (b << 20) | (g << 10) | r);
|
|
}
|
|
}
|
|
|
|
static void
|
|
store_scanline_x2b10g10r10_float (bits_image_t * image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
const uint32_t *v)
|
|
{
|
|
uint32_t *bits = image->bits + image->rowstride * y;
|
|
uint32_t *pixel = bits + x;
|
|
argb_t *values = (argb_t *)v;
|
|
int i;
|
|
|
|
for (i = 0; i < width; ++i)
|
|
{
|
|
uint16_t r, g, b;
|
|
|
|
r = pixman_float_to_unorm (values[i].r, 10);
|
|
g = pixman_float_to_unorm (values[i].g, 10);
|
|
b = pixman_float_to_unorm (values[i].b, 10);
|
|
|
|
WRITE (image, pixel++,
|
|
(b << 20) | (g << 10) | r);
|
|
}
|
|
}
|
|
|
|
static void
|
|
store_scanline_a8r8g8b8_sRGB_float (bits_image_t * image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
const uint32_t *v)
|
|
{
|
|
uint32_t *bits = image->bits + image->rowstride * y;
|
|
uint32_t *pixel = bits + x;
|
|
argb_t *values = (argb_t *)v;
|
|
int i;
|
|
|
|
for (i = 0; i < width; ++i)
|
|
{
|
|
uint8_t a, r, g, b;
|
|
|
|
a = pixman_float_to_unorm (values[i].a, 8);
|
|
r = to_srgb (values[i].r);
|
|
g = to_srgb (values[i].g);
|
|
b = to_srgb (values[i].b);
|
|
|
|
WRITE (image, pixel++,
|
|
(a << 24) | (r << 16) | (g << 8) | b);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Contracts a floating point image to 32bpp and then stores it using a
|
|
* regular 32-bit store proc. Despite the type, this function expects an
|
|
* argb_t buffer.
|
|
*/
|
|
static void
|
|
store_scanline_generic_float (bits_image_t * image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
const uint32_t *values)
|
|
{
|
|
uint32_t *argb8_pixels;
|
|
|
|
assert (image->common.type == BITS);
|
|
|
|
argb8_pixels = pixman_malloc_ab (width, sizeof(uint32_t));
|
|
if (!argb8_pixels)
|
|
return;
|
|
|
|
/* Contract the scanline. We could do this in place if values weren't
|
|
* const.
|
|
*/
|
|
pixman_contract_from_float (argb8_pixels, (argb_t *)values, width);
|
|
|
|
image->store_scanline_32 (image, x, y, width, argb8_pixels);
|
|
|
|
free (argb8_pixels);
|
|
}
|
|
|
|
static void
|
|
fetch_scanline_generic_float (pixman_image_t *image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
uint32_t * buffer,
|
|
const uint32_t *mask)
|
|
{
|
|
image->bits.fetch_scanline_32 (image, x, y, width, buffer, NULL);
|
|
|
|
pixman_expand_to_float ((argb_t *)buffer, buffer, image->bits.format, width);
|
|
}
|
|
|
|
/* The 32_sRGB paths should be deleted after narrow processing
|
|
* is no longer invoked for formats that are considered wide.
|
|
* (Also see fetch_pixel_generic_lossy_32) */
|
|
static void
|
|
fetch_scanline_a8r8g8b8_32_sRGB (pixman_image_t *image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
uint32_t *buffer,
|
|
const uint32_t *mask)
|
|
{
|
|
const uint32_t *bits = image->bits.bits + y * image->bits.rowstride;
|
|
const uint32_t *pixel = (uint32_t *)bits + x;
|
|
const uint32_t *end = pixel + width;
|
|
uint32_t tmp;
|
|
|
|
while (pixel < end)
|
|
{
|
|
uint8_t a, r, g, b;
|
|
|
|
tmp = READ (image, pixel++);
|
|
|
|
a = (tmp >> 24) & 0xff;
|
|
r = (tmp >> 16) & 0xff;
|
|
g = (tmp >> 8) & 0xff;
|
|
b = (tmp >> 0) & 0xff;
|
|
|
|
r = to_linear[r] * 255.0f + 0.5f;
|
|
g = to_linear[g] * 255.0f + 0.5f;
|
|
b = to_linear[b] * 255.0f + 0.5f;
|
|
|
|
*buffer++ = (a << 24) | (r << 16) | (g << 8) | (b << 0);
|
|
}
|
|
}
|
|
|
|
static uint32_t
|
|
fetch_pixel_a8r8g8b8_32_sRGB (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
uint32_t *bits = image->bits + line * image->rowstride;
|
|
uint32_t tmp = READ (image, bits + offset);
|
|
uint8_t a, r, g, b;
|
|
|
|
a = (tmp >> 24) & 0xff;
|
|
r = (tmp >> 16) & 0xff;
|
|
g = (tmp >> 8) & 0xff;
|
|
b = (tmp >> 0) & 0xff;
|
|
|
|
r = to_linear[r] * 255.0f + 0.5f;
|
|
g = to_linear[g] * 255.0f + 0.5f;
|
|
b = to_linear[b] * 255.0f + 0.5f;
|
|
|
|
return (a << 24) | (r << 16) | (g << 8) | (b << 0);
|
|
}
|
|
|
|
static void
|
|
store_scanline_a8r8g8b8_32_sRGB (bits_image_t *image,
|
|
int x,
|
|
int y,
|
|
int width,
|
|
const uint32_t *v)
|
|
{
|
|
uint32_t *bits = image->bits + image->rowstride * y;
|
|
uint64_t *values = (uint64_t *)v;
|
|
uint32_t *pixel = bits + x;
|
|
uint64_t tmp;
|
|
int i;
|
|
|
|
for (i = 0; i < width; ++i)
|
|
{
|
|
uint8_t a, r, g, b;
|
|
|
|
tmp = values[i];
|
|
|
|
a = (tmp >> 24) & 0xff;
|
|
r = (tmp >> 16) & 0xff;
|
|
g = (tmp >> 8) & 0xff;
|
|
b = (tmp >> 0) & 0xff;
|
|
|
|
r = to_srgb (r * (1/255.0f));
|
|
g = to_srgb (g * (1/255.0f));
|
|
b = to_srgb (b * (1/255.0f));
|
|
|
|
WRITE (image, pixel++, a | (r << 16) | (g << 8) | (b << 0));
|
|
}
|
|
}
|
|
|
|
static argb_t
|
|
fetch_pixel_generic_float (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
uint32_t pixel32 = image->fetch_pixel_32 (image, offset, line);
|
|
argb_t f;
|
|
|
|
pixman_expand_to_float (&f, &pixel32, image->format, 1);
|
|
|
|
return f;
|
|
}
|
|
|
|
/*
|
|
* XXX: The transformed fetch path only works at 32-bpp so far. When all
|
|
* paths have wide versions, this can be removed.
|
|
*
|
|
* WARNING: This function loses precision!
|
|
*/
|
|
static uint32_t
|
|
fetch_pixel_generic_lossy_32 (bits_image_t *image,
|
|
int offset,
|
|
int line)
|
|
{
|
|
argb_t pixel64 = image->fetch_pixel_float (image, offset, line);
|
|
uint32_t result;
|
|
|
|
pixman_contract_from_float (&result, &pixel64, 1);
|
|
|
|
return result;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
pixman_format_code_t format;
|
|
fetch_scanline_t fetch_scanline_32;
|
|
fetch_scanline_t fetch_scanline_float;
|
|
fetch_pixel_32_t fetch_pixel_32;
|
|
fetch_pixel_float_t fetch_pixel_float;
|
|
store_scanline_t store_scanline_32;
|
|
store_scanline_t store_scanline_float;
|
|
} format_info_t;
|
|
|
|
#define FORMAT_INFO(format) \
|
|
{ \
|
|
PIXMAN_ ## format, \
|
|
fetch_scanline_ ## format, \
|
|
fetch_scanline_generic_float, \
|
|
fetch_pixel_ ## format, \
|
|
fetch_pixel_generic_float, \
|
|
store_scanline_ ## format, \
|
|
store_scanline_generic_float \
|
|
}
|
|
|
|
static const format_info_t accessors[] =
|
|
{
|
|
/* 32 bpp formats */
|
|
FORMAT_INFO (a8r8g8b8),
|
|
FORMAT_INFO (x8r8g8b8),
|
|
FORMAT_INFO (a8b8g8r8),
|
|
FORMAT_INFO (x8b8g8r8),
|
|
FORMAT_INFO (b8g8r8a8),
|
|
FORMAT_INFO (b8g8r8x8),
|
|
FORMAT_INFO (r8g8b8a8),
|
|
FORMAT_INFO (r8g8b8x8),
|
|
FORMAT_INFO (x14r6g6b6),
|
|
|
|
/* sRGB formats */
|
|
{ PIXMAN_a8r8g8b8_sRGB,
|
|
fetch_scanline_a8r8g8b8_32_sRGB, fetch_scanline_a8r8g8b8_sRGB_float,
|
|
fetch_pixel_a8r8g8b8_32_sRGB, fetch_pixel_a8r8g8b8_sRGB_float,
|
|
store_scanline_a8r8g8b8_32_sRGB, store_scanline_a8r8g8b8_sRGB_float,
|
|
},
|
|
|
|
/* 24bpp formats */
|
|
FORMAT_INFO (r8g8b8),
|
|
FORMAT_INFO (b8g8r8),
|
|
|
|
/* 16bpp formats */
|
|
FORMAT_INFO (r5g6b5),
|
|
FORMAT_INFO (b5g6r5),
|
|
|
|
FORMAT_INFO (a1r5g5b5),
|
|
FORMAT_INFO (x1r5g5b5),
|
|
FORMAT_INFO (a1b5g5r5),
|
|
FORMAT_INFO (x1b5g5r5),
|
|
FORMAT_INFO (a4r4g4b4),
|
|
FORMAT_INFO (x4r4g4b4),
|
|
FORMAT_INFO (a4b4g4r4),
|
|
FORMAT_INFO (x4b4g4r4),
|
|
|
|
/* 8bpp formats */
|
|
FORMAT_INFO (a8),
|
|
FORMAT_INFO (r3g3b2),
|
|
FORMAT_INFO (b2g3r3),
|
|
FORMAT_INFO (a2r2g2b2),
|
|
FORMAT_INFO (a2b2g2r2),
|
|
|
|
FORMAT_INFO (c8),
|
|
|
|
FORMAT_INFO (g8),
|
|
|
|
#define fetch_scanline_x4c4 fetch_scanline_c8
|
|
#define fetch_pixel_x4c4 fetch_pixel_c8
|
|
#define store_scanline_x4c4 store_scanline_c8
|
|
FORMAT_INFO (x4c4),
|
|
|
|
#define fetch_scanline_x4g4 fetch_scanline_g8
|
|
#define fetch_pixel_x4g4 fetch_pixel_g8
|
|
#define store_scanline_x4g4 store_scanline_g8
|
|
FORMAT_INFO (x4g4),
|
|
|
|
FORMAT_INFO (x4a4),
|
|
|
|
/* 4bpp formats */
|
|
FORMAT_INFO (a4),
|
|
FORMAT_INFO (r1g2b1),
|
|
FORMAT_INFO (b1g2r1),
|
|
FORMAT_INFO (a1r1g1b1),
|
|
FORMAT_INFO (a1b1g1r1),
|
|
|
|
FORMAT_INFO (c4),
|
|
|
|
FORMAT_INFO (g4),
|
|
|
|
/* 1bpp formats */
|
|
FORMAT_INFO (a1),
|
|
FORMAT_INFO (g1),
|
|
|
|
/* Wide formats */
|
|
|
|
{ PIXMAN_a2r10g10b10,
|
|
NULL, fetch_scanline_a2r10g10b10_float,
|
|
fetch_pixel_generic_lossy_32, fetch_pixel_a2r10g10b10_float,
|
|
NULL, store_scanline_a2r10g10b10_float },
|
|
|
|
{ PIXMAN_x2r10g10b10,
|
|
NULL, fetch_scanline_x2r10g10b10_float,
|
|
fetch_pixel_generic_lossy_32, fetch_pixel_x2r10g10b10_float,
|
|
NULL, store_scanline_x2r10g10b10_float },
|
|
|
|
{ PIXMAN_a2b10g10r10,
|
|
NULL, fetch_scanline_a2b10g10r10_float,
|
|
fetch_pixel_generic_lossy_32, fetch_pixel_a2b10g10r10_float,
|
|
NULL, store_scanline_a2b10g10r10_float },
|
|
|
|
{ PIXMAN_x2b10g10r10,
|
|
NULL, fetch_scanline_x2b10g10r10_float,
|
|
fetch_pixel_generic_lossy_32, fetch_pixel_x2b10g10r10_float,
|
|
NULL, store_scanline_x2b10g10r10_float },
|
|
|
|
/* YUV formats */
|
|
{ PIXMAN_yuy2,
|
|
fetch_scanline_yuy2, fetch_scanline_generic_float,
|
|
fetch_pixel_yuy2, fetch_pixel_generic_float,
|
|
NULL, NULL },
|
|
|
|
{ PIXMAN_yv12,
|
|
fetch_scanline_yv12, fetch_scanline_generic_float,
|
|
fetch_pixel_yv12, fetch_pixel_generic_float,
|
|
NULL, NULL },
|
|
|
|
{ PIXMAN_null },
|
|
};
|
|
|
|
static void
|
|
setup_accessors (bits_image_t *image)
|
|
{
|
|
const format_info_t *info = accessors;
|
|
|
|
while (info->format != PIXMAN_null)
|
|
{
|
|
if (info->format == image->format)
|
|
{
|
|
image->fetch_scanline_32 = info->fetch_scanline_32;
|
|
image->fetch_scanline_float = info->fetch_scanline_float;
|
|
image->fetch_pixel_32 = info->fetch_pixel_32;
|
|
image->fetch_pixel_float = info->fetch_pixel_float;
|
|
image->store_scanline_32 = info->store_scanline_32;
|
|
image->store_scanline_float = info->store_scanline_float;
|
|
|
|
return;
|
|
}
|
|
|
|
info++;
|
|
}
|
|
}
|
|
|
|
#ifndef PIXMAN_FB_ACCESSORS
|
|
void
|
|
_pixman_bits_image_setup_accessors_accessors (bits_image_t *image);
|
|
|
|
void
|
|
_pixman_bits_image_setup_accessors (bits_image_t *image)
|
|
{
|
|
if (image->read_func || image->write_func)
|
|
_pixman_bits_image_setup_accessors_accessors (image);
|
|
else
|
|
setup_accessors (image);
|
|
}
|
|
|
|
#else
|
|
|
|
void
|
|
_pixman_bits_image_setup_accessors_accessors (bits_image_t *image)
|
|
{
|
|
setup_accessors (image);
|
|
}
|
|
|
|
#endif
|