Google Git
Sign in
fuchsia / third_party / pixman / refs/heads/upstream/0.20 / . / pixman / pixman-access.c
blob: f1ce0ba400cade8a1ef4e9b14835ab56689f0fbe [file] [log] [blame]
/*
*
* Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
* 2005 Lars Knoll & Zack Rusin, Trolltech
* 2008 Aaron Plattner, NVIDIA Corporation
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
* AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "pixman-private.h"
#include "pixman-accessor.h"
#define CONVERT_RGB24_TO_Y15(s) \
(((((s) >> 16) & 0xff) * 153 + \
(((s) >> 8) & 0xff) * 301 + \
(((s) ) & 0xff) * 58) >> 2)
#define CONVERT_RGB24_TO_RGB15(s) \
((((s) >> 3) & 0x001f) | \
(((s) >> 6) & 0x03e0) | \
(((s) >> 9) & 0x7c00))
#define RGB15_TO_ENTRY(mif,rgb15) \
((mif)->ent[rgb15])
#define RGB24_TO_ENTRY(mif,rgb24) \
RGB15_TO_ENTRY (mif,CONVERT_RGB24_TO_RGB15 (rgb24))
#define RGB24_TO_ENTRY_Y(mif,rgb24) \
((mif)->ent[CONVERT_RGB24_TO_Y15 (rgb24)])
/*
* YV12 setup and access macros
*/
#define YV12_SETUP(image) \
bits_image_t *__bits_image = (bits_image_t *)image; \
uint32_t *bits = __bits_image->bits; \
int stride = __bits_image->rowstride; \
int offset0 = stride < 0 ? \
((-stride) >> 1) * ((__bits_image->height - 1) >> 1) - stride : \
stride * __bits_image->height; \
int offset1 = stride < 0 ? \
offset0 + ((-stride) >> 1) * ((__bits_image->height) >> 1) : \
offset0 + (offset0 >> 2)
/* Note no trailing semicolon on the above macro; if it's there, then
* the typical usage of YV12_SETUP(image); will have an extra trailing ;
* that some compilers will interpret as a statement -- and then any further
* variable declarations will cause an error.
*/
#define YV12_Y(line) \
((uint8_t *) ((bits) + (stride) * (line)))
#define YV12_U(line) \
((uint8_t *) ((bits) + offset1 + \
((stride) >> 1) * ((line) >> 1)))
#define YV12_V(line) \
((uint8_t *) ((bits) + offset0 + \
((stride) >> 1) * ((line) >> 1)))
/********************************** Fetch ************************************/
static void
fetch_scanline_a8r8g8b8 (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;
MEMCPY_WRAPPED (image,
buffer, (const uint32_t *)bits + x,
width * sizeof(uint32_t));
}
static void
fetch_scanline_x8r8g8b8 (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 = (const uint32_t *)bits + x;
const uint32_t *end = pixel + width;
while (pixel < end)
*buffer++ = READ (image, pixel++) | 0xff000000;
}
static void
fetch_scanline_a8b8g8r8 (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;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
*buffer++ = (p & 0xff00ff00) |
((p >> 16) & 0xff) |
((p & 0xff) << 16);
}
}
static void
fetch_scanline_x8b8g8r8 (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;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
*buffer++ = 0xff000000 |
(p & 0x0000ff00) |
((p >> 16) & 0xff) |
((p & 0xff) << 16);
}
}
static void
fetch_scanline_b8g8r8a8 (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;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
*buffer++ = (((p & 0xff000000) >> 24) |
((p & 0x00ff0000) >> 8) |
((p & 0x0000ff00) << 8) |
((p & 0x000000ff) << 24));
}
}
static void
fetch_scanline_b8g8r8x8 (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;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
*buffer++ = (0xff000000 |
((p & 0xff000000) >> 24) |
((p & 0x00ff0000) >> 8) |
((p & 0x0000ff00) << 8));
}
}
static void
fetch_scanline_x14r6g6b6 (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 = (const uint32_t *)bits + x;
const uint32_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b;
r = ((p & 0x3f000) << 6) | ((p & 0x30000));
g = ((p & 0x00fc0) << 4) | ((p & 0x00c00) >> 2);
b = ((p & 0x0003f) << 2) | ((p & 0x00030) >> 4);
*buffer++ = 0xff000000 | r | g | b;
}
}
/* Expects a uint64_t buffer */
static void
fetch_scanline_a2r10g10b10 (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;
uint64_t *buffer = (uint64_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;
r = r << 6 | r >> 4;
g = g << 6 | g >> 4;
b = b << 6 | b >> 4;
a <<= 14;
a |= a >> 2;
a |= a >> 4;
a |= a >> 8;
*buffer++ = a << 48 | r << 32 | g << 16 | b;
}
}
/* Expects a uint64_t buffer */
static void
fetch_scanline_x2r10g10b10 (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;
uint64_t *buffer = (uint64_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;
r = r << 6 | r >> 4;
g = g << 6 | g >> 4;
b = b << 6 | b >> 4;
*buffer++ = 0xffffULL << 48 | r << 32 | g << 16 | b;
}
}
/* Expects a uint64_t buffer */
static void
fetch_scanline_a2b10g10r10 (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;
uint64_t *buffer = (uint64_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;
r = r << 6 | r >> 4;
g = g << 6 | g >> 4;
b = b << 6 | b >> 4;
a <<= 14;
a |= a >> 2;
a |= a >> 4;
a |= a >> 8;
*buffer++ = a << 48 | r << 32 | g << 16 | b;
}
}
/* Expects a uint64_t buffer */
static void
fetch_scanline_x2b10g10r10 (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;
uint64_t *buffer = (uint64_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;
r = r << 6 | r >> 4;
g = g << 6 | g >> 4;
b = b << 6 | b >> 4;
*buffer++ = 0xffffULL << 48 | r << 32 | g << 16 | b;
}
}
static void
fetch_scanline_r8g8b8 (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 uint8_t *pixel = (const uint8_t *)bits + 3 * x;
const uint8_t *end = pixel + 3 * width;
while (pixel < end)
{
uint32_t b = 0xff000000;
#ifdef WORDS_BIGENDIAN
b |= (READ (image, pixel++) << 16);
b |= (READ (image, pixel++) << 8);
b |= (READ (image, pixel++));
#else
b |= (READ (image, pixel++));
b |= (READ (image, pixel++) << 8);
b |= (READ (image, pixel++) << 16);
#endif
*buffer++ = b;
}
}
static void
fetch_scanline_b8g8r8 (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 uint8_t *pixel = (const uint8_t *)bits + 3 * x;
const uint8_t *end = pixel + 3 * width;
while (pixel < end)
{
uint32_t b = 0xff000000;
#ifdef WORDS_BIGENDIAN
b |= (READ (image, pixel++));
b |= (READ (image, pixel++) << 8);
b |= (READ (image, pixel++) << 16);
#else
b |= (READ (image, pixel++) << 16);
b |= (READ (image, pixel++) << 8);
b |= (READ (image, pixel++));
#endif
*buffer++ = b;
}
}
static void
fetch_scanline_r5g6b5 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r = (((p) << 3) & 0xf8) |
(((p) << 5) & 0xfc00) |
(((p) << 8) & 0xf80000);
r |= (r >> 5) & 0x70007;
r |= (r >> 6) & 0x300;
*buffer++ = 0xff000000 | r;
}
}
static void
fetch_scanline_b5g6r5 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b;
b = ((p & 0xf800) | ((p & 0xe000) >> 5)) >> 8;
g = ((p & 0x07e0) | ((p & 0x0600) >> 6)) << 5;
r = ((p & 0x001c) | ((p & 0x001f) << 5)) << 14;
*buffer++ = 0xff000000 | r | g | b;
}
}
static void
fetch_scanline_a1r5g5b5 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b, a;
a = (uint32_t) ((uint8_t) (0 - ((p & 0x8000) >> 15))) << 24;
r = ((p & 0x7c00) | ((p & 0x7000) >> 5)) << 9;
g = ((p & 0x03e0) | ((p & 0x0380) >> 5)) << 6;
b = ((p & 0x001c) | ((p & 0x001f) << 5)) >> 2;
*buffer++ = a | r | g | b;
}
}
static void
fetch_scanline_x1r5g5b5 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b;
r = ((p & 0x7c00) | ((p & 0x7000) >> 5)) << 9;
g = ((p & 0x03e0) | ((p & 0x0380) >> 5)) << 6;
b = ((p & 0x001c) | ((p & 0x001f) << 5)) >> 2;
*buffer++ = 0xff000000 | r | g | b;
}
}
static void
fetch_scanline_a1b5g5r5 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
uint32_t r, g, b, a;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
a = (uint32_t) ((uint8_t) (0 - ((p & 0x8000) >> 15))) << 24;
b = ((p & 0x7c00) | ((p & 0x7000) >> 5)) >> 7;
g = ((p & 0x03e0) | ((p & 0x0380) >> 5)) << 6;
r = ((p & 0x001c) | ((p & 0x001f) << 5)) << 14;
*buffer++ = a | r | g | b;
}
}
static void
fetch_scanline_x1b5g5r5 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b;
b = ((p & 0x7c00) | ((p & 0x7000) >> 5)) >> 7;
g = ((p & 0x03e0) | ((p & 0x0380) >> 5)) << 6;
r = ((p & 0x001c) | ((p & 0x001f) << 5)) << 14;
*buffer++ = 0xff000000 | r | g | b;
}
}
static void
fetch_scanline_a4r4g4b4 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b, a;
a = ((p & 0xf000) | ((p & 0xf000) >> 4)) << 16;
r = ((p & 0x0f00) | ((p & 0x0f00) >> 4)) << 12;
g = ((p & 0x00f0) | ((p & 0x00f0) >> 4)) << 8;
b = ((p & 0x000f) | ((p & 0x000f) << 4));
*buffer++ = a | r | g | b;
}
}
static void
fetch_scanline_x4r4g4b4 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b;
r = ((p & 0x0f00) | ((p & 0x0f00) >> 4)) << 12;
g = ((p & 0x00f0) | ((p & 0x00f0) >> 4)) << 8;
b = ((p & 0x000f) | ((p & 0x000f) << 4));
*buffer++ = 0xff000000 | r | g | b;
}
}
static void
fetch_scanline_a4b4g4r4 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b, a;
a = ((p & 0xf000) | ((p & 0xf000) >> 4)) << 16;
b = ((p & 0x0f00) | ((p & 0x0f00) >> 4)) >> 4;
g = ((p & 0x00f0) | ((p & 0x00f0) >> 4)) << 8;
r = ((p & 0x000f) | ((p & 0x000f) << 4)) << 16;
*buffer++ = a | r | g | b;
}
}
static void
fetch_scanline_x4b4g4r4 (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 uint16_t *pixel = (const uint16_t *)bits + x;
const uint16_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b;
b = ((p & 0x0f00) | ((p & 0x0f00) >> 4)) >> 4;
g = ((p & 0x00f0) | ((p & 0x00f0) >> 4)) << 8;
r = ((p & 0x000f) | ((p & 0x000f) << 4)) << 16;
*buffer++ = 0xff000000 | r | g | b;
}
}
static void
fetch_scanline_a8 (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 uint8_t *pixel = (const uint8_t *)bits + x;
const uint8_t *end = pixel + width;
while (pixel < end)
*buffer++ = READ (image, pixel++) << 24;
}
static void
fetch_scanline_r3g3b2 (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 uint8_t *pixel = (const uint8_t *)bits + x;
const uint8_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b;
r = ((p & 0xe0) | ((p & 0xe0) >> 3) | ((p & 0xc0) >> 6)) << 16;
g = ((p & 0x1c) | ((p & 0x18) >> 3) | ((p & 0x1c) << 3)) << 8;
b = (((p & 0x03) ) |
((p & 0x03) << 2) |
((p & 0x03) << 4) |
((p & 0x03) << 6));
*buffer++ = 0xff000000 | r | g | b;
}
}
static void
fetch_scanline_b2g3r3 (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 uint8_t *pixel = (const uint8_t *)bits + x;
const uint8_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t r, g, b;
b = p & 0xc0;
b |= b >> 2;
b |= b >> 4;
b &= 0xff;
g = (p & 0x38) << 10;
g |= g >> 3;
g |= g >> 6;
g &= 0xff00;
r = (p & 0x7) << 21;
r |= r >> 3;
r |= r >> 6;
r &= 0xff0000;
*buffer++ = 0xff000000 | r | g | b;
}
}
static void
fetch_scanline_a2r2g2b2 (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 uint8_t *pixel = (const uint8_t *)bits + x;
const uint8_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t a, r, g, b;
a = ((p & 0xc0) * 0x55) << 18;
r = ((p & 0x30) * 0x55) << 12;
g = ((p & 0x0c) * 0x55) << 6;
b = ((p & 0x03) * 0x55);
*buffer++ = a | r | g | b;
}
}
static void
fetch_scanline_a2b2g2r2 (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 uint8_t *pixel = (const uint8_t *)bits + x;
const uint8_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
uint32_t a, r, g, b;
a = ((p & 0xc0) * 0x55) << 18;
b = ((p & 0x30) * 0x55) >> 4;
g = ((p & 0x0c) * 0x55) << 6;
r = ((p & 0x03) * 0x55) << 16;
*buffer++ = a | r | g | b;
}
}
static void
fetch_scanline_c8 (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 pixman_indexed_t * indexed = image->bits.indexed;
const uint8_t *pixel = (const uint8_t *)bits + x;
const uint8_t *end = pixel + width;
while (pixel < end)
{
uint32_t p = READ (image, pixel++);
*buffer++ = indexed->rgba[p];
}
}
static void
fetch_scanline_x4a4 (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 uint8_t *pixel = (const uint8_t *)bits + x;
const uint8_t *end = pixel + width;
while (pixel < end)
{
uint8_t p = READ (image, pixel++) & 0xf;
*buffer++ = (p | (p << 4)) << 24;
}
}
#define FETCH_8(img,l,o) (READ (img, (((uint8_t *)(l)) + ((o) >> 3))))
#ifdef WORDS_BIGENDIAN
#define FETCH_4(img,l,o) \
(((4 * (o)) & 4) ? (FETCH_8 (img,l, 4 * (o)) & 0xf) : (FETCH_8 (img,l,(4 * (o))) >> 4))
#else
#define FETCH_4(img,l,o) \
(((4 * (o)) & 4) ? (FETCH_8 (img, l, 4 * (o)) >> 4) : (FETCH_8 (img, l, (4 * (o))) & 0xf))
#endif
static void
fetch_scanline_a4 (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;
int i;
for (i = 0; i < width; ++i)
{
uint32_t p = FETCH_4 (image, bits, i + x);
p |= p << 4;
*buffer++ = p << 24;
}
}
static void
fetch_scanline_r1g2b1 (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;
int i;
for (i = 0; i < width; ++i)
{
uint32_t p = FETCH_4 (image, bits, i + x);
uint32_t r, g, b;
r = ((p & 0x8) * 0xff) << 13;
g = ((p & 0x6) * 0x55) << 7;
b = ((p & 0x1) * 0xff);
*buffer++ = 0xff000000 | r | g | b;
}
}
static void
fetch_scanline_b1g2r1 (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;
int i;
for (i = 0; i < width; ++i)
{
uint32_t p = FETCH_4 (image, bits, i + x);
uint32_t r, g, b;
b = ((p & 0x8) * 0xff) >> 3;
g = ((p & 0x6) * 0x55) << 7;
r = ((p & 0x1) * 0xff) << 16;
*buffer++ = 0xff000000 | r | g | b;
}
}
static void
fetch_scanline_a1r1g1b1 (pixman_image_t *image,
int x,
int y,
int width,
uint32_t * buffer,
const uint32_t *mask)
{
uint32_t a, r, g, b;
const uint32_t *bits = image->bits.bits + y * image->bits.rowstride;
int i;
for (i = 0; i < width; ++i)
{
uint32_t p = FETCH_4 (image, bits, i + x);
a = ((p & 0x8) * 0xff) << 21;
r = ((p & 0x4) * 0xff) << 14;
g = ((p & 0x2) * 0xff) << 7;
b = ((p & 0x1) * 0xff);
*buffer++ = a | r | g | b;
}
}
static void
fetch_scanline_a1b1g1r1 (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;
int i;
for (i = 0; i < width; ++i)
{
uint32_t p = FETCH_4 (image, bits, i + x);
uint32_t a, r, g, b;
a = ((p & 0x8) * 0xff) << 21;
b = ((p & 0x4) * 0xff) >> 2;
g = ((p & 0x2) * 0xff) << 7;
r = ((p & 0x1) * 0xff) << 16;
*buffer++ = a | r | g | b;
}
}
static void
fetch_scanline_c4 (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 pixman_indexed_t * indexed = image->bits.indexed;
int i;
for (i = 0; i < width; ++i)
{
uint32_t p = FETCH_4 (image, bits, i + x);
*buffer++ = indexed->rgba[p];
}
}
static void
fetch_scanline_a1 (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;
int i;
for (i = 0; i < width; ++i)
{
uint32_t p = READ (image, bits + ((i + x) >> 5));
uint32_t a;
#ifdef WORDS_BIGENDIAN
a = p >> (0x1f - ((i + x) & 0x1f));
#else
a = p >> ((i + x) & 0x1f);
#endif
a = a & 1;
a |= a << 1;
a |= a << 2;
a |= a << 4;
*buffer++ = a << 24;
}
}
static void
fetch_scanline_g1 (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 pixman_indexed_t * indexed = image->bits.indexed;
int i;
for (i = 0; i < width; ++i)
{
uint32_t p = READ (image, bits + ((i + x) >> 5));
uint32_t a;
#ifdef WORDS_BIGENDIAN
a = p >> (0x1f - ((i + x) & 0x1f));
#else
a = p >> ((i + x) & 0x1f);
#endif
a = a & 1;
*buffer++ = indexed->rgba[a];
}
}
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 *****************************/
/* Despite the type, expects a uint64_t buffer */
static uint64_t
fetch_pixel_a2r10g10b10 (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;
r = r << 6 | r >> 4;
g = g << 6 | g >> 4;
b = b << 6 | b >> 4;
a <<= 14;
a |= a >> 2;
a |= a >> 4;
a |= a >> 8;
return a << 48 | r << 32 | g << 16 | b;
}
/* Despite the type, this function expects a uint64_t buffer */
static uint64_t
fetch_pixel_x2r10g10b10 (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;
r = r << 6 | r >> 4;
g = g << 6 | g >> 4;
b = b << 6 | b >> 4;
return 0xffffULL << 48 | r << 32 | g << 16 | b;
}
/* Despite the type, expects a uint64_t buffer */
static uint64_t
fetch_pixel_a2b10g10r10 (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;
r = r << 6 | r >> 4;
g = g << 6 | g >> 4;
b = b << 6 | b >> 4;
a <<= 14;
a |= a >> 2;
a |= a >> 4;
a |= a >> 8;
return a << 48 | r << 32 | g << 16 | b;
}
/* Despite the type, this function expects a uint64_t buffer */
static uint64_t
fetch_pixel_x2b10g10r10 (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;
r = r << 6 | r >> 4;
g = g << 6 | g >> 4;
b = b << 6 | b >> 4;
return 0xffffULL << 48 | r << 32 | g << 16 | b;
}
static uint32_t
fetch_pixel_a8r8g8b8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
return READ (image, (uint32_t *)bits + offset);
}
static uint32_t
fetch_pixel_x8r8g8b8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
return READ (image, (uint32_t *)bits + offset) | 0xff000000;
}
static uint32_t
fetch_pixel_a8b8g8r8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint32_t *)bits + offset);
return ((pixel & 0xff000000) |
((pixel >> 16) & 0xff) |
(pixel & 0x0000ff00) |
((pixel & 0xff) << 16));
}
static uint32_t
fetch_pixel_x8b8g8r8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint32_t *)bits + offset);
return ((0xff000000) |
((pixel >> 16) & 0xff) |
(pixel & 0x0000ff00) |
((pixel & 0xff) << 16));
}
static uint32_t
fetch_pixel_b8g8r8a8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint32_t *)bits + offset);
return ((pixel & 0xff000000) >> 24 |
(pixel & 0x00ff0000) >> 8 |
(pixel & 0x0000ff00) << 8 |
(pixel & 0x000000ff) << 24);
}
static uint32_t
fetch_pixel_b8g8r8x8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint32_t *)bits + offset);
return ((0xff000000) |
(pixel & 0xff000000) >> 24 |
(pixel & 0x00ff0000) >> 8 |
(pixel & 0x0000ff00) << 8);
}
static uint32_t
fetch_pixel_x14r6g6b6 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint32_t *) bits + offset);
uint32_t r, g, b;
r = ((pixel & 0x3f000) << 6) | ((pixel & 0x30000));
g = ((pixel & 0x00fc0) << 4) | ((pixel & 0x00c00) >> 2);
b = ((pixel & 0x0003f) << 2) | ((pixel & 0x00030) >> 4);
return 0xff000000 | r | g | b;
}
static uint32_t
fetch_pixel_r8g8b8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint8_t *pixel = ((uint8_t *) bits) + (offset * 3);
#ifdef WORDS_BIGENDIAN
return (0xff000000 |
(READ (image, pixel + 0) << 16) |
(READ (image, pixel + 1) << 8) |
(READ (image, pixel + 2)));
#else
return (0xff000000 |
(READ (image, pixel + 2) << 16) |
(READ (image, pixel + 1) << 8) |
(READ (image, pixel + 0)));
#endif
}
static uint32_t
fetch_pixel_b8g8r8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint8_t *pixel = ((uint8_t *) bits) + (offset * 3);
#ifdef WORDS_BIGENDIAN
return (0xff000000 |
(READ (image, pixel + 2) << 16) |
(READ (image, pixel + 1) << 8) |
(READ (image, pixel + 0)));
#else
return (0xff000000 |
(READ (image, pixel + 0) << 16) |
(READ (image, pixel + 1) << 8) |
(READ (image, pixel + 2)));
#endif
}
static uint32_t
fetch_pixel_r5g6b5 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
uint32_t r, g, b;
r = ((pixel & 0xf800) | ((pixel & 0xe000) >> 5)) << 8;
g = ((pixel & 0x07e0) | ((pixel & 0x0600) >> 6)) << 5;
b = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) >> 2;
return (0xff000000 | r | g | b);
}
static uint32_t
fetch_pixel_b5g6r5 (bits_image_t *image,
int offset,
int line)
{
uint32_t r, g, b;
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
b = ((pixel & 0xf800) | ((pixel & 0xe000) >> 5)) >> 8;
g = ((pixel & 0x07e0) | ((pixel & 0x0600) >> 6)) << 5;
r = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) << 14;
return (0xff000000 | r | g | b);
}
static uint32_t
fetch_pixel_a1r5g5b5 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
uint32_t a, r, g, b;
a = (uint32_t) ((uint8_t) (0 - ((pixel & 0x8000) >> 15))) << 24;
r = ((pixel & 0x7c00) | ((pixel & 0x7000) >> 5)) << 9;
g = ((pixel & 0x03e0) | ((pixel & 0x0380) >> 5)) << 6;
b = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) >> 2;
return (a | r | g | b);
}
static uint32_t
fetch_pixel_x1r5g5b5 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
uint32_t r, g, b;
r = ((pixel & 0x7c00) | ((pixel & 0x7000) >> 5)) << 9;
g = ((pixel & 0x03e0) | ((pixel & 0x0380) >> 5)) << 6;
b = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) >> 2;
return (0xff000000 | r | g | b);
}
static uint32_t
fetch_pixel_a1b5g5r5 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
uint32_t a, r, g, b;
a = (uint32_t) ((uint8_t) (0 - ((pixel & 0x8000) >> 15))) << 24;
b = ((pixel & 0x7c00) | ((pixel & 0x7000) >> 5)) >> 7;
g = ((pixel & 0x03e0) | ((pixel & 0x0380) >> 5)) << 6;
r = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) << 14;
return (a | r | g | b);
}
static uint32_t
fetch_pixel_x1b5g5r5 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
uint32_t r, g, b;
b = ((pixel & 0x7c00) | ((pixel & 0x7000) >> 5)) >> 7;
g = ((pixel & 0x03e0) | ((pixel & 0x0380) >> 5)) << 6;
r = ((pixel & 0x001c) | ((pixel & 0x001f) << 5)) << 14;
return (0xff000000 | r | g | b);
}
static uint32_t
fetch_pixel_a4r4g4b4 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
uint32_t a, r, g, b;
a = ((pixel & 0xf000) | ((pixel & 0xf000) >> 4)) << 16;
r = ((pixel & 0x0f00) | ((pixel & 0x0f00) >> 4)) << 12;
g = ((pixel & 0x00f0) | ((pixel & 0x00f0) >> 4)) << 8;
b = ((pixel & 0x000f) | ((pixel & 0x000f) << 4));
return (a | r | g | b);
}
static uint32_t
fetch_pixel_x4r4g4b4 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
uint32_t r, g, b;
r = ((pixel & 0x0f00) | ((pixel & 0x0f00) >> 4)) << 12;
g = ((pixel & 0x00f0) | ((pixel & 0x00f0) >> 4)) << 8;
b = ((pixel & 0x000f) | ((pixel & 0x000f) << 4));
return (0xff000000 | r | g | b);
}
static uint32_t
fetch_pixel_a4b4g4r4 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
uint32_t a, r, g, b;
a = ((pixel & 0xf000) | ((pixel & 0xf000) >> 4)) << 16;
b = ((pixel & 0x0f00) | ((pixel & 0x0f00) >> 4)) >> 4;
g = ((pixel & 0x00f0) | ((pixel & 0x00f0) >> 4)) << 8;
r = ((pixel & 0x000f) | ((pixel & 0x000f) << 4)) << 16;
return (a | r | g | b);
}
static uint32_t
fetch_pixel_x4b4g4r4 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint16_t *) bits + offset);
uint32_t r, g, b;
b = ((pixel & 0x0f00) | ((pixel & 0x0f00) >> 4)) >> 4;
g = ((pixel & 0x00f0) | ((pixel & 0x00f0) >> 4)) << 8;
r = ((pixel & 0x000f) | ((pixel & 0x000f) << 4)) << 16;
return (0xff000000 | r | g | b);
}
static uint32_t
fetch_pixel_a8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint8_t *) bits + offset);
return pixel << 24;
}
static uint32_t
fetch_pixel_r3g3b2 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint8_t *) bits + offset);
uint32_t r, g, b;
r = ((pixel & 0xe0) |
((pixel & 0xe0) >> 3) |
((pixel & 0xc0) >> 6)) << 16;
g = ((pixel & 0x1c) |
((pixel & 0x18) >> 3) |
((pixel & 0x1c) << 3)) << 8;
b = (((pixel & 0x03) ) |
((pixel & 0x03) << 2) |
((pixel & 0x03) << 4) |
((pixel & 0x03) << 6));
return (0xff000000 | r | g | b);
}
static uint32_t
fetch_pixel_b2g3r3 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t p = READ (image, (uint8_t *) bits + offset);
uint32_t r, g, b;
b = p & 0xc0;
b |= b >> 2;
b |= b >> 4;
b &= 0xff;
g = (p & 0x38) << 10;
g |= g >> 3;
g |= g >> 6;
g &= 0xff00;
r = (p & 0x7) << 21;
r |= r >> 3;
r |= r >> 6;
r &= 0xff0000;
return 0xff000000 | r | g | b;
}
static uint32_t
fetch_pixel_a2r2g2b2 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint8_t *) bits + offset);
uint32_t a, r, g, b;
a = ((pixel & 0xc0) * 0x55) << 18;
r = ((pixel & 0x30) * 0x55) << 12;
g = ((pixel & 0x0c) * 0x55) << 6;
b = ((pixel & 0x03) * 0x55);
return a | r | g | b;
}
static uint32_t
fetch_pixel_a2b2g2r2 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint8_t *) bits + offset);
uint32_t a, r, g, b;
a = ((pixel & 0xc0) * 0x55) << 18;
b = ((pixel & 0x30) * 0x55) >> 4;
g = ((pixel & 0x0c) * 0x55) << 6;
r = ((pixel & 0x03) * 0x55) << 16;
return a | r | g | b;
}
static uint32_t
fetch_pixel_c8 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint8_t *) bits + offset);
const pixman_indexed_t * indexed = image->indexed;
return indexed->rgba[pixel];
}
static uint32_t
fetch_pixel_x4a4 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, (uint8_t *) bits + offset);
return ((pixel & 0xf) | ((pixel & 0xf) << 4)) << 24;
}
static uint32_t
fetch_pixel_a4 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = FETCH_4 (image, bits, offset);
pixel |= pixel << 4;
return pixel << 24;
}
static uint32_t
fetch_pixel_r1g2b1 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = FETCH_4 (image, bits, offset);
uint32_t r, g, b;
r = ((pixel & 0x8) * 0xff) << 13;
g = ((pixel & 0x6) * 0x55) << 7;
b = ((pixel & 0x1) * 0xff);
return 0xff000000 | r | g | b;
}
static uint32_t
fetch_pixel_b1g2r1 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = FETCH_4 (image, bits, offset);
uint32_t r, g, b;
b = ((pixel & 0x8) * 0xff) >> 3;
g = ((pixel & 0x6) * 0x55) << 7;
r = ((pixel & 0x1) * 0xff) << 16;
return 0xff000000 | r | g | b;
}
static uint32_t
fetch_pixel_a1r1g1b1 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = FETCH_4 (image, bits, offset);
uint32_t a, r, g, b;
a = ((pixel & 0x8) * 0xff) << 21;
r = ((pixel & 0x4) * 0xff) << 14;
g = ((pixel & 0x2) * 0xff) << 7;
b = ((pixel & 0x1) * 0xff);
return a | r | g | b;
}
static uint32_t
fetch_pixel_a1b1g1r1 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = FETCH_4 (image, bits, offset);
uint32_t a, r, g, b;
a = ((pixel & 0x8) * 0xff) << 21;
b = ((pixel & 0x4) * 0xff) >> 2;
g = ((pixel & 0x2) * 0xff) << 7;
r = ((pixel & 0x1) * 0xff) << 16;
return a | r | g | b;
}
static uint32_t
fetch_pixel_c4 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = FETCH_4 (image, bits, offset);
const pixman_indexed_t * indexed = image->indexed;
return indexed->rgba[pixel];
}
static uint32_t
fetch_pixel_a1 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, bits + (offset >> 5));
uint32_t a;
#ifdef WORDS_BIGENDIAN
a = pixel >> (0x1f - (offset & 0x1f));
#else
a = pixel >> (offset & 0x1f);
#endif
a = a & 1;
a |= a << 1;
a |= a << 2;
a |= a << 4;
return a << 24;
}
static uint32_t
fetch_pixel_g1 (bits_image_t *image,
int offset,
int line)
{
uint32_t *bits = image->bits + line * image->rowstride;
uint32_t pixel = READ (image, bits + (offset >> 5));
const pixman_indexed_t * indexed = image->indexed;
uint32_t a;
#ifdef WORDS_BIGENDIAN
a = pixel >> (0x1f - (offset & 0x1f));
#else
a = pixel >> (offset & 0x1f);
#endif
a = a & 1;
return indexed->rgba[a];
}
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 ************************************/
#define SPLIT_A(v) \
uint32_t a = ((v) >> 24), \
r = ((v) >> 16) & 0xff, \
g = ((v) >> 8) & 0xff, \
b = (v) & 0xff
#define SPLIT(v) \
uint32_t r = ((v) >> 16) & 0xff, \
g = ((v) >> 8) & 0xff, \
b = (v) & 0xff
static void
store_scanline_a2r10g10b10 (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;
uint64_t *values = (uint64_t *)v;
int i;
for (i = 0; i < width; ++i)
{
WRITE (image, pixel++,
((values[i] >> 32) & 0xc0000000) |
((values[i] >> 18) & 0x3ff00000) |
((values[i] >> 12) & 0xffc00) |
((values[i] >> 6) & 0x3ff));
}
}
static void
store_scanline_x2r10g10b10 (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;
int i;
for (i = 0; i < width; ++i)
{
WRITE (image, pixel++,
((values[i] >> 18) & 0x3ff00000) |
((values[i] >> 12) & 0xffc00) |
((values[i] >> 6) & 0x3ff));
}
}
static void
store_scanline_a2b10g10r10 (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;
uint64_t *values = (uint64_t *)v;
int i;
for (i = 0; i < width; ++i)
{
WRITE (image, pixel++,
((values[i] >> 32) & 0xc0000000) |
((values[i] >> 38) & 0x3ff) |
((values[i] >> 12) & 0xffc00) |
((values[i] << 14) & 0x3ff00000));
}
}
static void
store_scanline_x2b10g10r10 (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;
int i;
for (i = 0; i < width; ++i)
{
WRITE (image, pixel++,
((values[i] >> 38) & 0x3ff) |
((values[i] >> 12) & 0xffc00) |
((values[i] << 14) & 0x3ff00000));
}
}
static void
store_scanline_a8r8g8b8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
MEMCPY_WRAPPED (image, ((uint32_t *)bits) + x, values,
width * sizeof(uint32_t));
}
static void
store_scanline_x8r8g8b8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint32_t *pixel = (uint32_t *)bits + x;
int i;
for (i = 0; i < width; ++i)
WRITE (image, pixel++, values[i] & 0xffffff);
}
static void
store_scanline_a8b8g8r8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint32_t *pixel = (uint32_t *)bits + x;
int i;
for (i = 0; i < width; ++i)
{
WRITE (image, pixel++,
(values[i] & 0xff00ff00) |
((values[i] >> 16) & 0xff) |
((values[i] & 0xff) << 16));
}
}
static void
store_scanline_x8b8g8r8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint32_t *pixel = (uint32_t *)bits + x;
int i;
for (i = 0; i < width; ++i)
{
WRITE (image, pixel++,
(values[i] & 0x0000ff00) |
((values[i] >> 16) & 0xff) |
((values[i] & 0xff) << 16));
}
}
static void
store_scanline_b8g8r8a8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint32_t *pixel = (uint32_t *)bits + x;
int i;
for (i = 0; i < width; ++i)
{
WRITE (image, pixel++,
((values[i] >> 24) & 0x000000ff) |
((values[i] >> 8) & 0x0000ff00) |
((values[i] << 8) & 0x00ff0000) |
((values[i] << 24) & 0xff000000));
}
}
static void
store_scanline_b8g8r8x8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint32_t *pixel = (uint32_t *)bits + x;
int i;
for (i = 0; i < width; ++i)
{
WRITE (image, pixel++,
((values[i] >> 8) & 0x0000ff00) |
((values[i] << 8) & 0x00ff0000) |
((values[i] << 24) & 0xff000000));
}
}
static void
store_scanline_x14r6g6b6 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint32_t *pixel = ((uint32_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
uint32_t s = values[i];
uint32_t r, g, b;
r = (s & 0xfc0000) >> 6;
g = (s & 0x00fc00) >> 4;
b = (s & 0x0000fc) >> 2;
WRITE (image, pixel++, r | g | b);
}
}
static void
store_scanline_r8g8b8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + 3 * x;
int i;
for (i = 0; i < width; ++i)
{
uint32_t val = values[i];
#ifdef WORDS_BIGENDIAN
WRITE (image, pixel++, (val & 0x00ff0000) >> 16);
WRITE (image, pixel++, (val & 0x0000ff00) >> 8);
WRITE (image, pixel++, (val & 0x000000ff) >> 0);
#else
WRITE (image, pixel++, (val & 0x000000ff) >> 0);
WRITE (image, pixel++, (val & 0x0000ff00) >> 8);
WRITE (image, pixel++, (val & 0x00ff0000) >> 16);
#endif
}
}
static void
store_scanline_b8g8r8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + 3 * x;
int i;
for (i = 0; i < width; ++i)
{
uint32_t val = values[i];
#ifdef WORDS_BIGENDIAN
WRITE (image, pixel++, (val & 0x000000ff) >> 0);
WRITE (image, pixel++, (val & 0x0000ff00) >> 8);
WRITE (image, pixel++, (val & 0x00ff0000) >> 16);
#else
WRITE (image, pixel++, (val & 0x00ff0000) >> 16);
WRITE (image, pixel++, (val & 0x0000ff00) >> 8);
WRITE (image, pixel++, (val & 0x000000ff) >> 0);
#endif
}
}
static void
store_scanline_r5g6b5 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
uint32_t s = values[i];
WRITE (image, pixel++,
((s >> 3) & 0x001f) |
((s >> 5) & 0x07e0) |
((s >> 8) & 0xf800));
}
}
static void
store_scanline_b5g6r5 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT (values[i]);
WRITE (image, pixel++,
((b << 8) & 0xf800) |
((g << 3) & 0x07e0) |
((r >> 3) ));
}
}
static void
store_scanline_a1r5g5b5 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT_A (values[i]);
WRITE (image, pixel++,
((a << 8) & 0x8000) |
((r << 7) & 0x7c00) |
((g << 2) & 0x03e0) |
((b >> 3) ));
}
}
static void
store_scanline_x1r5g5b5 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT (values[i]);
WRITE (image, pixel++,
((r << 7) & 0x7c00) |
((g << 2) & 0x03e0) |
((b >> 3) ));
}
}
static void
store_scanline_a1b5g5r5 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT_A (values[i]);
WRITE (image, pixel++,
((a << 8) & 0x8000) |
((b << 7) & 0x7c00) |
((g << 2) & 0x03e0) |
((r >> 3) ));
}
}
static void
store_scanline_x1b5g5r5 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT (values[i]);
WRITE (image, pixel++, ((b << 7) & 0x7c00) |
((g << 2) & 0x03e0) |
((r >> 3) ));
}
}
static void
store_scanline_a4r4g4b4 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT_A (values[i]);
WRITE (image, pixel++,
((a << 8) & 0xf000) |
((r << 4) & 0x0f00) |
((g ) & 0x00f0) |
((b >> 4) ));
}
}
static void
store_scanline_x4r4g4b4 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT (values[i]);
WRITE (image, pixel++,
((r << 4) & 0x0f00) |
((g ) & 0x00f0) |
((b >> 4) ));
}
}
static void
store_scanline_a4b4g4r4 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT_A (values[i]);
WRITE (image, pixel++, ((a << 8) & 0xf000) |
((b << 4) & 0x0f00) |
((g ) & 0x00f0) |
((r >> 4) ));
}
}
static void
store_scanline_x4b4g4r4 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint16_t *pixel = ((uint16_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT (values[i]);
WRITE (image, pixel++,
((b << 4) & 0x0f00) |
((g ) & 0x00f0) |
((r >> 4) ));
}
}
static void
store_scanline_a8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
WRITE (image, pixel++, values[i] >> 24);
}
}
static void
store_scanline_r3g3b2 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT (values[i]);
WRITE (image, pixel++,
((r ) & 0xe0) |
((g >> 3) & 0x1c) |
((b >> 6) ));
}
}
static void
store_scanline_b2g3r3 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT (values[i]);
WRITE (image, pixel++,
((b ) & 0xc0) |
((g >> 2) & 0x38) |
((r >> 5) ));
}
}
static void
store_scanline_a2r2g2b2 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT_A (values[i]);
WRITE (image, pixel++,
((a ) & 0xc0) |
((r >> 2) & 0x30) |
((g >> 4) & 0x0c) |
((b >> 6) ));
}
}
static void
store_scanline_a2b2g2r2 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
{
SPLIT_A (values[i]);
WRITE (image, pixel++,
((a ) & 0xc0) |
((b >> 2) & 0x30) |
((g >> 4) & 0x0c) |
((r >> 6) ));
}
}
static void
store_scanline_c8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + x;
const pixman_indexed_t *indexed = image->indexed;
int i;
for (i = 0; i < width; ++i)
WRITE (image, pixel++, RGB24_TO_ENTRY (indexed,values[i]));
}
static void
store_scanline_g8 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + x;
const pixman_indexed_t *indexed = image->indexed;
int i;
for (i = 0; i < width; ++i)
WRITE (image, pixel++, RGB24_TO_ENTRY_Y (indexed,values[i]));
}
static void
store_scanline_x4a4 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
uint8_t *pixel = ((uint8_t *) bits) + x;
int i;
for (i = 0; i < width; ++i)
WRITE (image, pixel++, values[i] >> 28);
}
#define STORE_8(img,l,o,v) (WRITE (img, (uint8_t *)(l) + ((o) >> 3), (v)))
#ifdef WORDS_BIGENDIAN
#define STORE_4(img,l,o,v) \
do \
{ \
int bo = 4 * (o); \
int v4 = (v) & 0x0f; \
\
STORE_8 (img, l, bo, ( \
bo & 4 ? \
(FETCH_8 (img, l, bo) & 0xf0) | (v4) : \
(FETCH_8 (img, l, bo) & 0x0f) | (v4 << 4))); \
} while (0)
#else
#define STORE_4(img,l,o,v) \
do \
{ \
int bo = 4 * (o); \
int v4 = (v) & 0x0f; \
\
STORE_8 (img, l, bo, ( \
bo & 4 ? \
(FETCH_8 (img, l, bo) & 0x0f) | (v4 << 4) : \
(FETCH_8 (img, l, bo) & 0xf0) | (v4))); \
} while (0)
#endif
static void
store_scanline_a4 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
int i;
for (i = 0; i < width; ++i)
STORE_4 (image, bits, i + x, values[i] >> 28);
}
static void
store_scanline_r1g2b1 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
int i;
for (i = 0; i < width; ++i)
{
uint32_t pixel;
SPLIT (values[i]);
pixel = (((r >> 4) & 0x8) |
((g >> 5) & 0x6) |
((b >> 7) ));
STORE_4 (image, bits, i + x, pixel);
}
}
static void
store_scanline_b1g2r1 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
int i;
for (i = 0; i < width; ++i)
{
uint32_t pixel;
SPLIT (values[i]);
pixel = (((b >> 4) & 0x8) |
((g >> 5) & 0x6) |
((r >> 7) ));
STORE_4 (image, bits, i + x, pixel);
}
}
static void
store_scanline_a1r1g1b1 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
int i;
for (i = 0; i < width; ++i)
{
uint32_t pixel;
SPLIT_A (values[i]);
pixel = (((a >> 4) & 0x8) |
((r >> 5) & 0x4) |
((g >> 6) & 0x2) |
((b >> 7) ));
STORE_4 (image, bits, i + x, pixel);
}
}
static void
store_scanline_a1b1g1r1 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
int i;
for (i = 0; i < width; ++i)
{
uint32_t pixel;
SPLIT_A (values[i]);
pixel = (((a >> 4) & 0x8) |
((b >> 5) & 0x4) |
((g >> 6) & 0x2) |
((r >> 7) ));
STORE_4 (image, bits, i + x, pixel);
}
}
static void
store_scanline_c4 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
const pixman_indexed_t *indexed = image->indexed;
int i;
for (i = 0; i < width; ++i)
{
uint32_t pixel;
pixel = RGB24_TO_ENTRY (indexed, values[i]);
STORE_4 (image, bits, i + x, pixel);
}
}
static void
store_scanline_g4 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
const pixman_indexed_t *indexed = image->indexed;
int i;
for (i = 0; i < width; ++i)
{
uint32_t pixel;
pixel = RGB24_TO_ENTRY_Y (indexed, values[i]);
STORE_4 (image, bits, i + x, pixel);
}
}
static void
store_scanline_a1 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
int i;
for (i = 0; i < width; ++i)
{
uint32_t *pixel = ((uint32_t *) bits) + ((i + x) >> 5);
uint32_t mask, v;
#ifdef WORDS_BIGENDIAN
mask = 1 << (0x1f - ((i + x) & 0x1f));
#else
mask = 1 << ((i + x) & 0x1f);
#endif
v = values[i] & 0x80000000 ? mask : 0;
WRITE (image, pixel, (READ (image, pixel) & ~mask) | v);
}
}
static void
store_scanline_g1 (bits_image_t * image,
int x,
int y,
int width,
const uint32_t *values)
{
uint32_t *bits = image->bits + image->rowstride * y;
const pixman_indexed_t *indexed = image->indexed;
int i;
for (i = 0; i < width; ++i)
{
uint32_t *pixel = ((uint32_t *) bits) + ((i + x) >> 5);
uint32_t mask, v;
#ifdef WORDS_BIGENDIAN
mask = 1 << (0x1f - ((i + x) & 0x1f));
#else
mask = 1 << ((i + x) & 0x1f);
#endif
v = RGB24_TO_ENTRY_Y (indexed, values[i]) & 0x1 ? mask : 0;
WRITE (image, pixel, (READ (image, pixel) & ~mask) | v);
}
}
/*
* Contracts a 64bpp image to 32bpp and then stores it using a regular 32-bit
* store proc. Despite the type, this function expects a uint64_t buffer.
*/
static void
store_scanline_generic_64 (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 (argb8_pixels, (uint64_t *)values, width);
image->store_scanline_32 (image, x, y, width, argb8_pixels);
free (argb8_pixels);
}
/* Despite the type, this function expects both buffer
* and mask to be uint64_t
*/
static void
fetch_scanline_generic_64 (pixman_image_t *image,
int x,
int y,
int width,
uint32_t * buffer,
const uint32_t *mask)
{
pixman_format_code_t format;
/* Fetch the pixels into the first half of buffer and then expand them in
* place.
*/
image->bits.fetch_scanline_32 (image, x, y, width, buffer, NULL);
format = image->bits.format;
if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_COLOR ||
PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_GRAY)
{
/* Indexed formats are mapped to a8r8g8b8 with full
* precision, so when expanding we shouldn't correct
* for the width of the channels
*/
format = PIXMAN_a8r8g8b8;
}
pixman_expand ((uint64_t *)buffer, buffer, format, width);
}
/* Despite the type, this function expects a uint64_t *buffer */
static uint64_t
fetch_pixel_generic_64 (bits_image_t *image,
int offset,
int line)
{
uint32_t pixel32 = image->fetch_pixel_32 (image, offset, line);
uint64_t result;
pixman_format_code_t format;
format = image->format;
if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_COLOR ||
PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_GRAY)
{
/* Indexed formats are mapped to a8r8g8b8 with full
* precision, so when expanding we shouldn't correct
* for the width of the channels
*/
format = PIXMAN_a8r8g8b8;
}
pixman_expand ((uint64_t *)&result, &pixel32, format, 1);
return result;
}
/*
* 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)
{
uint64_t pixel64 = image->fetch_pixel_64 (image, offset, line);
uint32_t result;
pixman_contract (&result, &pixel64, 1);
return result;
}
typedef struct
{
pixman_format_code_t format;
fetch_scanline_t fetch_scanline_32;
fetch_scanline_t fetch_scanline_64;
fetch_pixel_32_t fetch_pixel_32;
fetch_pixel_64_t fetch_pixel_64;
store_scanline_t store_scanline_32;
store_scanline_t store_scanline_64;
} format_info_t;
#define FORMAT_INFO(format) \
{ \
PIXMAN_ ## format, \
fetch_scanline_ ## format, \
fetch_scanline_generic_64, \
fetch_pixel_ ## format, fetch_pixel_generic_64, \
store_scanline_ ## format, store_scanline_generic_64 \
}
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 (x14r6g6b6),
/* 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),
#define fetch_scanline_g8 fetch_scanline_c8
#define fetch_pixel_g8 fetch_pixel_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_c8
#define fetch_pixel_x4g4 fetch_pixel_c8
#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),
#define fetch_scanline_g4 fetch_scanline_c4
#define fetch_pixel_g4 fetch_pixel_c4
FORMAT_INFO (g4),
/* 1bpp formats */
FORMAT_INFO (a1),
FORMAT_INFO (g1),
/* Wide formats */
{ PIXMAN_a2r10g10b10,
NULL, fetch_scanline_a2r10g10b10,
fetch_pixel_generic_lossy_32, fetch_pixel_a2r10g10b10,
NULL, store_scanline_a2r10g10b10 },
{ PIXMAN_x2r10g10b10,
NULL, fetch_scanline_x2r10g10b10,
fetch_pixel_generic_lossy_32, fetch_pixel_x2r10g10b10,
NULL, store_scanline_x2r10g10b10 },
{ PIXMAN_a2b10g10r10,
NULL, fetch_scanline_a2b10g10r10,
fetch_pixel_generic_lossy_32, fetch_pixel_a2b10g10r10,
NULL, store_scanline_a2b10g10r10 },
{ PIXMAN_x2b10g10r10,
NULL, fetch_scanline_x2b10g10r10,
fetch_pixel_generic_lossy_32, fetch_pixel_x2b10g10r10,
NULL, store_scanline_x2b10g10r10 },
/* YUV formats */
{ PIXMAN_yuy2,
fetch_scanline_yuy2, fetch_scanline_generic_64,
fetch_pixel_yuy2, fetch_pixel_generic_64,
NULL, NULL },
{ PIXMAN_yv12,
fetch_scanline_yv12, fetch_scanline_generic_64,
fetch_pixel_yv12, fetch_pixel_generic_64,
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_64 = info->fetch_scanline_64;
image->fetch_pixel_32 = info->fetch_pixel_32;
image->fetch_pixel_64 = info->fetch_pixel_64;
image->store_scanline_32 = info->store_scanline_32;
image->store_scanline_64 = info->store_scanline_64;
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