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spice/common/pixman_utils.c
Alexander Larsson af4672326b Use the spice allocator in common/
2010-03-11 12:14:08 +01:00

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/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil; -*- */
/*
Copyright (C) 2009 Red Hat, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "pixman_utils.h"
#include <spice/macros.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "mem.h"
#ifndef ASSERT
#define ASSERT(x) if (!(x)) { \
printf("%s: ASSERT %s failed\n", __FUNCTION__, #x); \
abort(); \
}
#endif
#define SOLID_RASTER_OP(_name, _size, _type, _equation) \
static void \
solid_rop_ ## _name ## _ ## _size (_type *ptr, int len, _type src) \
{ \
while (len--) { \
_type dst = *ptr; \
if (dst) /* avoid unused warning */{}; \
*ptr = (_type)(_equation); \
ptr++; \
} \
} \
#define TILED_RASTER_OP(_name, _size, _type, _equation) \
static void \
tiled_rop_ ## _name ## _ ## _size (_type *ptr, int len, _type *tile, _type *tile_end, int tile_width) \
{ \
while (len--) { \
_type src = *tile; \
_type dst = *ptr; \
if (src) /* avoid unused warning */{}; \
if (dst) /* avoid unused warning */{}; \
*ptr = (_type)(_equation); \
ptr++; \
tile++; \
if (tile == tile_end) \
tile -= tile_width; \
} \
} \
#define COPY_RASTER_OP(_name, _size, _type, _equation) \
static void \
copy_rop_ ## _name ## _ ## _size (_type *ptr, _type *src_line, int len) \
{ \
while (len--) { \
_type src = *src_line; \
_type dst = *ptr; \
if (src) /* avoid unused warning */ {}; \
if (dst) /* avoid unused warning */{}; \
*ptr = (_type)(_equation); \
ptr++; \
src_line++; \
} \
} \
#define RASTER_OP(name, equation) \
SOLID_RASTER_OP(name, 8, uint8_t, equation) \
SOLID_RASTER_OP(name, 16, uint16_t, equation) \
SOLID_RASTER_OP(name, 32, uint32_t, equation) \
TILED_RASTER_OP(name, 8, uint8_t, equation) \
TILED_RASTER_OP(name, 16, uint16_t, equation) \
TILED_RASTER_OP(name, 32, uint32_t, equation) \
COPY_RASTER_OP(name, 8, uint8_t, equation) \
COPY_RASTER_OP(name, 16, uint16_t, equation) \
COPY_RASTER_OP(name, 32, uint32_t, equation)
RASTER_OP(clear, 0x0)
RASTER_OP(and, src & dst)
RASTER_OP(and_reverse, src & ~dst)
RASTER_OP(copy, src)
RASTER_OP(and_inverted, ~src & dst)
RASTER_OP(noop, dst)
RASTER_OP(xor, src ^ dst)
RASTER_OP(or, src | dst)
RASTER_OP(nor, ~src & ~dst)
RASTER_OP(equiv, ~src ^ dst)
RASTER_OP(invert, ~dst)
RASTER_OP(or_reverse, src | ~dst)
RASTER_OP(copy_inverted, ~src)
RASTER_OP(or_inverted, ~src | dst)
RASTER_OP(nand, ~src | ~dst)
RASTER_OP(set, 0xffffffff)
typedef void (*solid_rop_8_func_t)(uint8_t *ptr, int len, uint8_t src);
typedef void (*solid_rop_16_func_t)(uint16_t *ptr, int len, uint16_t src);
typedef void (*solid_rop_32_func_t)(uint32_t *ptr, int len, uint32_t src);
typedef void (*tiled_rop_8_func_t)(uint8_t *ptr, int len,
uint8_t *tile, uint8_t *tile_end, int tile_width);
typedef void (*tiled_rop_16_func_t)(uint16_t *ptr, int len,
uint16_t *tile, uint16_t *tile_end, int tile_width);
typedef void (*tiled_rop_32_func_t)(uint32_t *ptr, int len,
uint32_t *tile, uint32_t *tile_end, int tile_width);
typedef void (*copy_rop_8_func_t)(uint8_t *ptr, uint8_t *src, int len);
typedef void (*copy_rop_16_func_t)(uint16_t *ptr, uint16_t *src, int len);
typedef void (*copy_rop_32_func_t)(uint32_t *ptr, uint32_t *src, int len);
#define ROP_TABLE(_type, _size) \
static void (*solid_rops_ ## _size[16]) (_type *ptr, int len, _type src) = { \
solid_rop_clear_ ## _size, \
solid_rop_and_ ## _size, \
solid_rop_and_reverse_ ## _size, \
solid_rop_copy_ ## _size, \
solid_rop_and_inverted_ ## _size, \
solid_rop_noop_ ## _size, \
solid_rop_xor_ ## _size, \
solid_rop_or_ ## _size, \
solid_rop_nor_ ## _size, \
solid_rop_equiv_ ## _size, \
solid_rop_invert_ ## _size, \
solid_rop_or_reverse_ ## _size, \
solid_rop_copy_inverted_ ## _size, \
solid_rop_or_inverted_ ## _size, \
solid_rop_nand_ ## _size, \
solid_rop_set_ ## _size \
}; \
static void (*tiled_rops_ ## _size[16]) (_type *ptr, int len, _type *tile, _type *tile_end, int tile_width) = { \
tiled_rop_clear_ ## _size, \
tiled_rop_and_ ## _size, \
tiled_rop_and_reverse_ ## _size, \
tiled_rop_copy_ ## _size, \
tiled_rop_and_inverted_ ## _size, \
tiled_rop_noop_ ## _size, \
tiled_rop_xor_ ## _size, \
tiled_rop_or_ ## _size, \
tiled_rop_nor_ ## _size, \
tiled_rop_equiv_ ## _size, \
tiled_rop_invert_ ## _size, \
tiled_rop_or_reverse_ ## _size, \
tiled_rop_copy_inverted_ ## _size, \
tiled_rop_or_inverted_ ## _size, \
tiled_rop_nand_ ## _size, \
tiled_rop_set_ ## _size \
}; \
static void (*copy_rops_ ## _size[16]) (_type *ptr, _type *tile, int len) = { \
copy_rop_clear_ ## _size, \
copy_rop_and_ ## _size, \
copy_rop_and_reverse_ ## _size, \
copy_rop_copy_ ## _size, \
copy_rop_and_inverted_ ## _size, \
copy_rop_noop_ ## _size, \
copy_rop_xor_ ## _size, \
copy_rop_or_ ## _size, \
copy_rop_nor_ ## _size, \
copy_rop_equiv_ ## _size, \
copy_rop_invert_ ## _size, \
copy_rop_or_reverse_ ## _size, \
copy_rop_copy_inverted_ ## _size, \
copy_rop_or_inverted_ ## _size, \
copy_rop_nand_ ## _size, \
copy_rop_set_ ## _size \
};
ROP_TABLE(uint8_t, 8)
ROP_TABLE(uint16_t, 16)
ROP_TABLE(uint32_t, 32)
void spice_pixman_fill_rect(pixman_image_t *dest,
int x, int y,
int width, int height,
uint32_t value)
{
uint32_t *bits;
int stride, depth;
uint32_t byte_width;
uint8_t *byte_line;
bits = pixman_image_get_data(dest);
stride = pixman_image_get_stride(dest);
depth = pixman_image_get_depth(dest);
/* stride is in bytes, depth in bits */
ASSERT(x >= 0);
ASSERT(y >= 0);
ASSERT(width > 0);
ASSERT(height > 0);
ASSERT(x + width <= pixman_image_get_width(dest));
ASSERT(y + height <= pixman_image_get_height(dest));
if (depth == 24) {
depth = 32; /* Needed for pixman_fill */
}
if (pixman_fill(bits,
stride / 4,
depth,
x, y,
width, height,
value)) {
return;
}
if (depth == 8) {
byte_line = ((uint8_t *)bits) + stride * y + x;
byte_width = width;
value = (value & 0xff) * 0x01010101;
} else if (depth == 16) {
byte_line = ((uint8_t *)bits) + stride * y + x * 2;
byte_width = 2 * width;
value = (value & 0xffff) * 0x00010001;
} else {
ASSERT (depth == 32 || depth == 24)
byte_line = ((uint8_t *)bits) + stride * y + x * 4;
byte_width = 4 * width;
}
while (height--) {
int w;
uint8_t *d = byte_line;
byte_line += stride;
w = byte_width;
while (w >= 1 && ((unsigned long)d & 1)) {
*(uint8_t *)d = (value & 0xff);
w--;
d++;
}
while (w >= 2 && ((unsigned long)d & 3)) {
*(uint16_t *)d = value;
w -= 2;
d += 2;
}
while (w >= 4 && ((unsigned long)d & 7)) {
*(uint32_t *)d = value;
w -= 4;
d += 4;
}
while (w >= 4) {
*(uint32_t *)d = value;
w -= 4;
d += 4;
}
while (w >= 2) {
*(uint16_t *)d = value;
w -= 2;
d += 2;
}
while (w >= 1) {
*(uint8_t *)d = (value & 0xff);
w--;
d++;
}
}
}
void spice_pixman_fill_rect_rop(pixman_image_t *dest,
int x, int y,
int width, int height,
uint32_t value,
SpiceROP rop)
{
uint32_t *bits;
int stride, depth;
uint8_t *byte_line;
bits = pixman_image_get_data(dest);
stride = pixman_image_get_stride(dest);
depth = pixman_image_get_depth(dest);
/* stride is in bytes, depth in bits */
ASSERT(x >= 0);
ASSERT(y >= 0);
ASSERT(width > 0);
ASSERT(height > 0);
ASSERT(x + width <= pixman_image_get_width(dest));
ASSERT(y + height <= pixman_image_get_height(dest));
ASSERT(rop >= 0 && rop < 16);
if (depth == 8) {
solid_rop_8_func_t rop_func = solid_rops_8[rop];
byte_line = ((uint8_t *)bits) + stride * y + x;
while (height--) {
rop_func((uint8_t *)byte_line, width, (uint8_t)value);
byte_line += stride;
}
} else if (depth == 16) {
solid_rop_16_func_t rop_func = solid_rops_16[rop];
byte_line = ((uint8_t *)bits) + stride * y + x * 2;
while (height--) {
rop_func((uint16_t *)byte_line, width, (uint16_t)value);
byte_line += stride;
}
} else {
solid_rop_32_func_t rop_func = solid_rops_32[rop];
ASSERT (depth == 32 || depth == 24);
byte_line = ((uint8_t *)bits) + stride * y + x * 4;
while (height--) {
rop_func((uint32_t *)byte_line, width, (uint32_t)value);
byte_line += stride;
}
}
}
void spice_pixman_tile_rect(pixman_image_t *dest,
int x, int y,
int width, int height,
pixman_image_t *tile,
int offset_x,
int offset_y)
{
uint32_t *bits, *tile_bits;
int stride, depth;
int tile_width, tile_height, tile_stride;
uint8_t *byte_line;
uint8_t *tile_line;
int tile_start_x, tile_start_y, tile_end_dx;
bits = pixman_image_get_data(dest);
stride = pixman_image_get_stride(dest);
depth = pixman_image_get_depth(dest);
/* stride is in bytes, depth in bits */
tile_bits = pixman_image_get_data(tile);
tile_stride = pixman_image_get_stride(tile);
tile_width = pixman_image_get_width(tile);
tile_height = pixman_image_get_height(tile);
ASSERT(x >= 0);
ASSERT(y >= 0);
ASSERT(width > 0);
ASSERT(height > 0);
ASSERT(x + width <= pixman_image_get_width(dest));
ASSERT(y + height <= pixman_image_get_height(dest));
ASSERT(depth == pixman_image_get_depth(tile));
tile_start_x = (x - offset_x) % tile_width;
if (tile_start_x < 0) {
tile_start_x += tile_width;
}
tile_start_y = (y - offset_y) % tile_height;
if (tile_start_y < 0) {
tile_start_y += tile_height;
}
tile_end_dx = tile_width - tile_start_x;
if (depth == 8) {
byte_line = ((uint8_t *)bits) + stride * y + x;
tile_line = ((uint8_t *)tile_bits) + tile_stride * tile_start_y + tile_start_x;
while (height--) {
tiled_rop_copy_8((uint8_t *)byte_line, width,
(uint8_t *)tile_line, (uint8_t *)tile_line + tile_end_dx,
tile_width);
byte_line += stride;
tile_line += tile_stride;
if (++tile_start_y == tile_height) {
tile_line -= tile_height * tile_stride;
tile_start_y = 0;
}
}
} else if (depth == 16) {
byte_line = ((uint8_t *)bits) + stride * y + x * 2;
tile_line = ((uint8_t *)tile_bits) + tile_stride * tile_start_y + tile_start_x * 2;
while (height--) {
tiled_rop_copy_16((uint16_t *)byte_line, width,
(uint16_t *)tile_line, (uint16_t *)tile_line + tile_end_dx,
tile_width);
byte_line += stride;
tile_line += tile_stride;
if (++tile_start_y == tile_height) {
tile_line -= tile_height * tile_stride;
tile_start_y = 0;
}
}
} else {
ASSERT (depth == 32 || depth == 24);
byte_line = ((uint8_t *)bits) + stride * y + x * 4;
tile_line = ((uint8_t *)tile_bits) + tile_stride * tile_start_y + tile_start_x * 4;
while (height--) {
tiled_rop_copy_32((uint32_t *)byte_line, width,
(uint32_t *)tile_line, (uint32_t *)tile_line + tile_end_dx,
tile_width);
byte_line += stride;
tile_line += tile_stride;
if (++tile_start_y == tile_height) {
tile_line -= tile_height * tile_stride;
tile_start_y = 0;
}
}
}
}
void spice_pixman_tile_rect_rop(pixman_image_t *dest,
int x, int y,
int width, int height,
pixman_image_t *tile,
int offset_x,
int offset_y,
SpiceROP rop)
{
uint32_t *bits, *tile_bits;
int stride, depth;
int tile_width, tile_height, tile_stride;
uint8_t *byte_line;
uint8_t *tile_line;
int tile_start_x, tile_start_y, tile_end_dx;
bits = pixman_image_get_data(dest);
stride = pixman_image_get_stride(dest);
depth = pixman_image_get_depth(dest);
/* stride is in bytes, depth in bits */
tile_bits = pixman_image_get_data(tile);
tile_stride = pixman_image_get_stride(tile);
tile_width = pixman_image_get_width(tile);
tile_height = pixman_image_get_height(tile);
ASSERT(x >= 0);
ASSERT(y >= 0);
ASSERT(width > 0);
ASSERT(height > 0);
ASSERT(x + width <= pixman_image_get_width(dest));
ASSERT(y + height <= pixman_image_get_height(dest));
ASSERT(rop >= 0 && rop < 16);
ASSERT(depth == pixman_image_get_depth(tile));
tile_start_x = (x - offset_x) % tile_width;
if (tile_start_x < 0) {
tile_start_x += tile_width;
}
tile_start_y = (y - offset_y) % tile_height;
if (tile_start_y < 0) {
tile_start_y += tile_height;
}
tile_end_dx = tile_width - tile_start_x;
if (depth == 8) {
tiled_rop_8_func_t rop_func = tiled_rops_8[rop];
byte_line = ((uint8_t *)bits) + stride * y + x;
tile_line = ((uint8_t *)tile_bits) + tile_stride * tile_start_y + tile_start_x;
while (height--) {
rop_func((uint8_t *)byte_line, width,
(uint8_t *)tile_line, (uint8_t *)tile_line + tile_end_dx,
tile_width);
byte_line += stride;
tile_line += tile_stride;
if (++tile_start_y == tile_height) {
tile_line -= tile_height * tile_stride;
tile_start_y = 0;
}
}
} else if (depth == 16) {
tiled_rop_16_func_t rop_func = tiled_rops_16[rop];
byte_line = ((uint8_t *)bits) + stride * y + x * 2;
tile_line = ((uint8_t *)tile_bits) + tile_stride * tile_start_y + tile_start_x * 2;
while (height--) {
rop_func((uint16_t *)byte_line, width,
(uint16_t *)tile_line, (uint16_t *)tile_line + tile_end_dx,
tile_width);
byte_line += stride;
tile_line += tile_stride;
if (++tile_start_y == tile_height) {
tile_line -= tile_height * tile_stride;
tile_start_y = 0;
}
}
} else {
tiled_rop_32_func_t rop_func = tiled_rops_32[rop];
ASSERT (depth == 32 || depth == 24);
byte_line = ((uint8_t *)bits) + stride * y + x * 4;
tile_line = ((uint8_t *)tile_bits) + tile_stride * tile_start_y + tile_start_x * 4;
while (height--) {
rop_func((uint32_t *)byte_line, width,
(uint32_t *)tile_line, (uint32_t *)tile_line + tile_end_dx,
tile_width);
byte_line += stride;
tile_line += tile_stride;
if (++tile_start_y == tile_height) {
tile_line -= tile_height * tile_stride;
tile_start_y = 0;
}
}
}
}
void spice_pixman_blit(pixman_image_t *dest,
pixman_image_t *src,
int src_x, int src_y,
int dest_x, int dest_y,
int width, int height)
{
uint32_t *bits, *src_bits;
int stride, depth;
int src_width, src_height, src_stride;
uint8_t *byte_line;
uint8_t *src_line;
int byte_width;
bits = pixman_image_get_data(dest);
stride = pixman_image_get_stride(dest);
depth = pixman_image_get_depth(dest);
/* stride is in bytes, depth in bits */
src_bits = pixman_image_get_data(src);
src_stride = pixman_image_get_stride(src);
src_width = pixman_image_get_width(src);
src_height = pixman_image_get_height(src);
/* Clip source */
if (src_x < 0) {
width += src_x;
dest_x -= src_x;
src_x = 0;
}
if (src_y < 0) {
height += src_y;
dest_y -= src_y;
src_y = 0;
}
if (src_x + width > src_width) {
width = src_width - src_x;
}
if (src_y + height > src_height) {
height = src_height - src_y;
}
if (width <= 0 || height <= 0) {
return;
}
ASSERT(src_x >= 0);
ASSERT(src_y >= 0);
ASSERT(dest_x >= 0);
ASSERT(dest_y >= 0);
ASSERT(width > 0);
ASSERT(height > 0);
ASSERT(dest_x + width <= pixman_image_get_width(dest));
ASSERT(dest_y + height <= pixman_image_get_height(dest));
ASSERT(src_x + width <= pixman_image_get_width(src));
ASSERT(src_y + height <= pixman_image_get_height(src));
ASSERT(depth == pixman_image_get_depth(src));
if (depth == 24) {
depth = 32; /* Needed for pixman_blt */
}
if (pixman_blt(src_bits,
bits,
src_stride / 4,
stride / 4,
depth, depth,
src_x, src_y,
dest_x, dest_y,
width, height)) {
return;
}
if (depth == 8) {
byte_line = ((uint8_t *)bits) + stride * dest_y + dest_x;
byte_width = width;
src_line = ((uint8_t *)src_bits) + src_stride * src_y + src_x;
} else if (depth == 16) {
byte_line = ((uint8_t *)bits) + stride * dest_y + dest_x * 2;
byte_width = width * 2;
src_line = ((uint8_t *)src_bits) + src_stride * src_y + src_x * 2;
} else {
ASSERT (depth == 32 || depth == 24);
byte_line = ((uint8_t *)bits) + stride * dest_y + dest_x * 4;
byte_width = width * 4;
src_line = ((uint8_t *)src_bits) + src_stride * src_y + src_x * 4;
}
while (height--) {
memcpy(byte_line, src_line, byte_width);
byte_line += stride;
src_line += src_stride;
}
}
void spice_pixman_blit_rop (pixman_image_t *dest,
pixman_image_t *src,
int src_x, int src_y,
int dest_x, int dest_y,
int width, int height,
SpiceROP rop)
{
uint32_t *bits, *src_bits;
int stride, depth;
int src_width, src_height, src_stride;
uint8_t *byte_line;
uint8_t *src_line;
bits = pixman_image_get_data(dest);
stride = pixman_image_get_stride(dest);
depth = pixman_image_get_depth(dest);
/* stride is in bytes, depth in bits */
src_bits = pixman_image_get_data(src);
src_stride = pixman_image_get_stride(src);
src_width = pixman_image_get_width(src);
src_height = pixman_image_get_height(src);
/* Clip source */
if (src_x < 0) {
width += src_x;
dest_x -= src_x;
src_x = 0;
}
if (src_y < 0) {
height += src_y;
dest_y -= src_y;
src_y = 0;
}
if (src_x + width > src_width) {
width = src_width - src_x;
}
if (src_y + height > src_height) {
height = src_height - src_y;
}
if (width <= 0 || height <= 0) {
return;
}
ASSERT(src_x >= 0);
ASSERT(src_y >= 0);
ASSERT(dest_x >= 0);
ASSERT(dest_y >= 0);
ASSERT(width > 0);
ASSERT(height > 0);
ASSERT(dest_x + width <= pixman_image_get_width(dest));
ASSERT(dest_y + height <= pixman_image_get_height(dest));
ASSERT(src_x + width <= pixman_image_get_width(src));
ASSERT(src_y + height <= pixman_image_get_height(src));
ASSERT(depth == pixman_image_get_depth(src));
if (depth == 8) {
copy_rop_8_func_t rop_func = copy_rops_8[rop];
byte_line = ((uint8_t *)bits) + stride * dest_y + dest_x;
src_line = ((uint8_t *)src_bits) + src_stride * src_y + src_x;
while (height--) {
rop_func((uint8_t *)byte_line, (uint8_t *)src_line, width);
byte_line += stride;
src_line += src_stride;
}
} else if (depth == 16) {
copy_rop_16_func_t rop_func = copy_rops_16[rop];
byte_line = ((uint8_t *)bits) + stride * dest_y + dest_x * 2;
src_line = ((uint8_t *)src_bits) + src_stride * src_y + src_x * 2;
while (height--) {
rop_func((uint16_t *)byte_line, (uint16_t *)src_line, width);
byte_line += stride;
src_line += src_stride;
}
} else {
copy_rop_32_func_t rop_func = copy_rops_32[rop];
ASSERT (depth == 32 || depth == 24);
byte_line = ((uint8_t *)bits) + stride * dest_y + dest_x * 4;
src_line = ((uint8_t *)src_bits) + src_stride * src_y + src_x * 4;
while (height--) {
rop_func((uint32_t *)byte_line, (uint32_t *)src_line, width);
byte_line += stride;
src_line += src_stride;
}
}
}
void spice_pixman_blit_colorkey (pixman_image_t *dest,
pixman_image_t *src,
int src_x, int src_y,
int dest_x, int dest_y,
int width, int height,
uint32_t transparent_color)
{
uint32_t *bits, *src_bits;
int stride, depth;
int src_width, src_height, src_stride;
uint8_t *byte_line;
uint8_t *src_line;
int x;
bits = pixman_image_get_data(dest);
stride = pixman_image_get_stride(dest);
depth = pixman_image_get_depth(dest);
/* stride is in bytes, depth in bits */
src_bits = pixman_image_get_data(src);
src_stride = pixman_image_get_stride(src);
src_width = pixman_image_get_width(src);
src_height = pixman_image_get_height(src);
/* Clip source */
if (src_x < 0) {
width += src_x;
dest_x -= src_x;
src_x = 0;
}
if (src_y < 0) {
height += src_y;
dest_y -= src_y;
src_y = 0;
}
if (src_x + width > src_width) {
width = src_width - src_x;
}
if (src_y + height > src_height) {
height = src_height - src_y;
}
if (width <= 0 || height <= 0) {
return;
}
ASSERT(src_x >= 0);
ASSERT(src_y >= 0);
ASSERT(dest_x >= 0);
ASSERT(dest_y >= 0);
ASSERT(width > 0);
ASSERT(height > 0);
ASSERT(dest_x + width <= pixman_image_get_width(dest));
ASSERT(dest_y + height <= pixman_image_get_height(dest));
ASSERT(src_x + width <= pixman_image_get_width(src));
ASSERT(src_y + height <= pixman_image_get_height(src));
ASSERT(depth == pixman_image_get_depth(src));
if (depth == 8) {
byte_line = ((uint8_t *)bits) + stride * dest_y + dest_x;
src_line = ((uint8_t *)src_bits) + src_stride * src_y + src_x;
while (height--) {
uint8_t *d = (uint8_t *)byte_line;
uint8_t *s = (uint8_t *)byte_line;
s = (uint8_t *)src_line;
for (x = 0; x < width; x++) {
uint8_t val = *s;
if (val != (uint8_t)transparent_color) {
*d = val;
}
s++; d++;
}
byte_line += stride;
src_line += src_stride;
}
} else if (depth == 16) {
byte_line = ((uint8_t *)bits) + stride * dest_y + dest_x * 2;
src_line = ((uint8_t *)src_bits) + src_stride * src_y + src_x * 2;
while (height--) {
uint16_t *d = (uint16_t *)byte_line;
uint16_t *s = (uint16_t *)byte_line;
s = (uint16_t *)src_line;
for (x = 0; x < width; x++) {
uint16_t val = *s;
if (val != (uint16_t)transparent_color) {
*d = val;
}
s++; d++;
}
byte_line += stride;
src_line += src_stride;
}
} else {
ASSERT (depth == 32 || depth == 24);
byte_line = ((uint8_t *)bits) + stride * dest_y + dest_x * 4;
src_line = ((uint8_t *)src_bits) + src_stride * src_y + src_x * 4;
while (height--) {
uint32_t *d = (uint32_t *)byte_line;
uint32_t *s = (uint32_t *)byte_line;
transparent_color &= 0xffffff;
s = (uint32_t *)src_line;
for (x = 0; x < width; x++) {
uint32_t val = *s;
if ((0xffffff & val) != transparent_color) {
*d = val;
}
s++; d++;
}
byte_line += stride;
src_line += src_stride;
}
}
}
static void copy_bits_up(uint8_t *data, const int stride,
const int src_x, const int src_y,
const int width, const int height,
const int dest_x, const int dest_y)
{
uint8_t *src = data + src_y * stride + src_x * sizeof(uint32_t);
uint8_t *dest = data + dest_y * stride + dest_x * sizeof(uint32_t);
uint8_t *end = dest + height * stride;
for (; dest != end; dest += stride, src += stride) {
memcpy(dest, src, width * sizeof(uint32_t));
}
}
static void copy_bits_down(uint8_t *data, const int stride,
const int src_x, const int src_y,
const int width, const int height,
const int dest_x, const int dest_y)
{
uint8_t *src = data + (src_y + height - 1) * stride + src_x * sizeof(uint32_t);
uint8_t *end = data + (dest_y - 1) * stride + dest_x * sizeof(uint32_t);
uint8_t *dest = end + height * stride;
for (; dest != end; dest -= stride, src -= stride) {
memcpy(dest, src, width * sizeof(uint32_t));
}
}
static void copy_bits_same_line(uint8_t *data, const int stride,
const int src_x, const int src_y,
const int width, const int height,
const int dest_x, const int dest_y)
{
uint8_t *src = data + src_y * stride + src_x * sizeof(uint32_t);
uint8_t *dest = data + dest_y * stride + dest_x * sizeof(uint32_t);
uint8_t *end = dest + height * stride;
for (; dest != end; dest += stride, src += stride) {
memmove(dest, src, width * sizeof(uint32_t));
}
}
void spice_pixman_copy_rect (pixman_image_t *image,
int src_x, int src_y,
int width, int height,
int dest_x, int dest_y)
{
uint8_t *data;
int stride;
data = (uint8_t *)pixman_image_get_data(image);
stride = pixman_image_get_stride(image);
ASSERT(pixman_image_get_depth(image) == 24 ||
pixman_image_get_depth(image) == 32);
if (dest_y > src_y) {
copy_bits_down(data, stride,
src_x, src_y,
width, height,
dest_x, dest_y);
} else if (dest_y < src_y) {
copy_bits_up(data, stride,
src_x, src_y,
width, height,
dest_x, dest_y);
} else {
copy_bits_same_line(data, stride,
src_x, src_y,
width, height,
dest_x, dest_y);
}
}
pixman_bool_t spice_pixman_region32_init_rects (pixman_region32_t *region,
const SpiceRect *rects,
int count)
{
pixman_box32_t boxes_array[10];
pixman_box32_t *boxes;
pixman_bool_t res;
int i;
if (count < 10) {
boxes = boxes_array;
} else {
boxes = spice_new(pixman_box32_t, count);
if (boxes == NULL) {
return FALSE;
}
}
for (i = 0; i < count; i++) {
boxes[i].x1 = rects[i].left;
boxes[i].y1 = rects[i].top;
boxes[i].x2 = rects[i].right;
boxes[i].y2 = rects[i].bottom;
}
res = pixman_region32_init_rects(region, boxes, count);
if (count >= 10) {
free(boxes);
}
return res;
}
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