static void
general_composite_rect (pixman_implementation_t *imp,
pixman_op_t op,
pixman_image_t * src,
pixman_image_t * mask,
pixman_image_t * dest,
int32_t src_x,
int32_t src_y,
int32_t mask_x,
int32_t mask_y,
int32_t dest_x,
int32_t dest_y,
int32_t width,
int32_t height)
{
uint8_t stack_scanline_buffer[SCANLINE_BUFFER_LENGTH * 3];
const pixman_format_code_t src_format =
src->type == BITS ? src->bits.format : 0;
const pixman_format_code_t mask_format =
mask && mask->type == BITS ? mask->bits.format : 0;
const pixman_format_code_t dest_format =
dest->type == BITS ? dest->bits.format : 0;
const int src_wide = PIXMAN_FORMAT_IS_WIDE (src_format);
const int mask_wide = mask && PIXMAN_FORMAT_IS_WIDE (mask_format);
const int dest_wide = PIXMAN_FORMAT_IS_WIDE (dest_format);
const int wide = src_wide || mask_wide || dest_wide;
const int Bpp = wide ? 8 : 4;
uint8_t *scanline_buffer = stack_scanline_buffer;
uint8_t *src_buffer, *mask_buffer, *dest_buffer;
fetch_scanline_t fetch_src = NULL, fetch_mask = NULL, fetch_dest = NULL;
pixman_combine_32_func_t compose;
store_scanline_t store;
source_image_class_t src_class, mask_class;
pixman_bool_t component_alpha;
uint32_t *bits;
int32_t stride;
int i;
if (width * Bpp > SCANLINE_BUFFER_LENGTH)
{
scanline_buffer = pixman_malloc_abc (width, 3, Bpp);
if (!scanline_buffer)
return;
}
src_buffer = scanline_buffer;
mask_buffer = src_buffer + width * Bpp;
dest_buffer = mask_buffer + width * Bpp;
src_class = _pixman_image_classify (src,
src_x, src_y,
width, height);
mask_class = SOURCE_IMAGE_CLASS_UNKNOWN;
if (mask)
{
mask_class = _pixman_image_classify (mask,
src_x, src_y,
width, height);
}
if (op == PIXMAN_OP_CLEAR)
fetch_src = NULL;
else if (wide)
fetch_src = _pixman_image_get_scanline_64;
else
fetch_src = _pixman_image_get_scanline_32;
if (!mask || op == PIXMAN_OP_CLEAR)
fetch_mask = NULL;
else if (wide)
fetch_mask = _pixman_image_get_scanline_64;
else
fetch_mask = _pixman_image_get_scanline_32;
if (op == PIXMAN_OP_CLEAR || op == PIXMAN_OP_SRC)
fetch_dest = NULL;
else if (wide)
fetch_dest = _pixman_image_get_scanline_64;
else
fetch_dest = _pixman_image_get_scanline_32;
if (wide)
store = _pixman_image_store_scanline_64;
else
store = _pixman_image_store_scanline_32;
/* Skip the store step and composite directly into the
* destination if the output format of the compose func matches
* the destination format.
*/
if (!wide &&
!dest->common.alpha_map &&
!dest->bits.write_func &&
(op == PIXMAN_OP_ADD || op == PIXMAN_OP_OVER) &&
(dest->bits.format == PIXMAN_a8r8g8b8 ||
dest->bits.format == PIXMAN_x8r8g8b8))
{
store = NULL;
}
if (!store)
{
bits = dest->bits.bits;
stride = dest->bits.rowstride;
}
else
{
bits = NULL;
stride = 0;
}
component_alpha =
fetch_src &&
fetch_mask &&
mask &&
mask->common.type == BITS &&
mask->common.component_alpha &&
PIXMAN_FORMAT_RGB (mask->bits.format);
if (wide)
{
if (component_alpha)
compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64_ca;
else
compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64;
}
else
{
if (component_alpha)
compose = _pixman_implementation_combine_32_ca;
else
compose = _pixman_implementation_combine_32;
}
if (!compose)
return;
if (!fetch_mask)
mask_buffer = NULL;
for (i = 0; i < height; ++i)
{
/* fill first half of scanline with source */
if (fetch_src)
{
if (fetch_mask)
{
/* fetch mask before source so that fetching of
source can be optimized */
fetch_mask (mask, mask_x, mask_y + i,
width, (void *)mask_buffer, 0, 0);
if (mask_class == SOURCE_IMAGE_CLASS_HORIZONTAL)
fetch_mask = NULL;
}
if (src_class == SOURCE_IMAGE_CLASS_HORIZONTAL)
{
fetch_src (src, src_x, src_y + i,
width, (void *)src_buffer, 0, 0);
fetch_src = NULL;
}
else
{
fetch_src (src, src_x, src_y + i,
width, (void *)src_buffer, (void *)mask_buffer,
0xffffffff);
}
}
else if (fetch_mask)
{
fetch_mask (mask, mask_x, mask_y + i,
width, (void *)mask_buffer, 0, 0);
}
if (store)
{
/* fill dest into second half of scanline */
if (fetch_dest)
{
fetch_dest (dest, dest_x, dest_y + i,
width, (void *)dest_buffer, 0, 0);
}
/* blend */
compose (imp->toplevel, op,
(void *)dest_buffer,
(void *)src_buffer,
(void *)mask_buffer,
width);
/* write back */
store (&(dest->bits), dest_x, dest_y + i, width,
(void *)dest_buffer);
}
else
{
/* blend */
compose (imp->toplevel, op,
bits + (dest_y + i) * stride + dest_x,
(void *)src_buffer, (void *)mask_buffer, width);
}
}
if (scanline_buffer != stack_scanline_buffer)
free (scanline_buffer);
}
static void
general_composite_rect (pixman_implementation_t *imp,
pixman_op_t op,
pixman_image_t * src,
pixman_image_t * mask,
pixman_image_t * dest,
int32_t src_x,
int32_t src_y,
int32_t mask_x,
int32_t mask_y,
int32_t dest_x,
int32_t dest_y,
int32_t width,
int32_t height)
{
uint8_t stack_scanline_buffer[SCANLINE_BUFFER_LENGTH * 3];
uint8_t *scanline_buffer = stack_scanline_buffer;
uint8_t *src_buffer, *mask_buffer, *dest_buffer;
fetch_scanline_t fetch_src = NULL, fetch_mask = NULL, fetch_dest = NULL;
pixman_combine_32_func_t compose;
store_scanline_t store;
source_image_class_t src_class, mask_class;
pixman_bool_t component_alpha;
uint32_t *bits;
int32_t stride;
int narrow, Bpp;
int i;
narrow =
(src->common.flags & FAST_PATH_NARROW_FORMAT) &&
(!mask || mask->common.flags & FAST_PATH_NARROW_FORMAT) &&
(dest->common.flags & FAST_PATH_NARROW_FORMAT);
Bpp = narrow ? 4 : 8;
if (width * Bpp > SCANLINE_BUFFER_LENGTH)
{
scanline_buffer = pixman_malloc_abc (width, 3, Bpp);
if (!scanline_buffer)
return;
}
src_buffer = scanline_buffer;
mask_buffer = src_buffer + width * Bpp;
dest_buffer = mask_buffer + width * Bpp;
src_class = _pixman_image_classify (src,
src_x, src_y,
width, height);
mask_class = SOURCE_IMAGE_CLASS_UNKNOWN;
if (mask)
{
mask_class = _pixman_image_classify (mask,
src_x, src_y,
width, height);
}
if (op == PIXMAN_OP_CLEAR)
fetch_src = NULL;
else if (narrow)
fetch_src = _pixman_image_get_scanline_32;
else
fetch_src = _pixman_image_get_scanline_64;
if (!mask || op == PIXMAN_OP_CLEAR)
fetch_mask = NULL;
else if (narrow)
fetch_mask = _pixman_image_get_scanline_32;
else
fetch_mask = _pixman_image_get_scanline_64;
if (op == PIXMAN_OP_CLEAR || op == PIXMAN_OP_SRC)
fetch_dest = NULL;
else if (narrow)
fetch_dest = _pixman_image_get_scanline_32;
else
fetch_dest = _pixman_image_get_scanline_64;
if (narrow)
store = _pixman_image_store_scanline_32;
else
store = _pixman_image_store_scanline_64;
/* Skip the store step and composite directly into the
* destination if the output format of the compose func matches
* the destination format.
*
* If the destination format is a8r8g8b8 then we can always do
* this. If it is x8r8g8b8, then we can only do it if the
* operator doesn't make use of destination alpha.
*/
if ((dest->bits.format == PIXMAN_a8r8g8b8) ||
(dest->bits.format == PIXMAN_x8r8g8b8 &&
(op == PIXMAN_OP_OVER ||
op == PIXMAN_OP_ADD ||
op == PIXMAN_OP_SRC ||
op == PIXMAN_OP_CLEAR ||
op == PIXMAN_OP_IN_REVERSE ||
op == PIXMAN_OP_OUT_REVERSE ||
op == PIXMAN_OP_DST)))
{
if (narrow &&
!dest->common.alpha_map &&
!dest->bits.write_func)
{
store = NULL;
}
}
if (!store)
{
bits = dest->bits.bits;
stride = dest->bits.rowstride;
}
else
{
bits = NULL;
stride = 0;
}
component_alpha =
fetch_src &&
fetch_mask &&
mask &&
mask->common.type == BITS &&
mask->common.component_alpha &&
PIXMAN_FORMAT_RGB (mask->bits.format);
if (narrow)
{
if (component_alpha)
compose = _pixman_implementation_combine_32_ca;
else
compose = _pixman_implementation_combine_32;
}
else
{
if (component_alpha)
compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64_ca;
else
compose = (pixman_combine_32_func_t)_pixman_implementation_combine_64;
}
if (!compose)
return;
if (!fetch_mask)
mask_buffer = NULL;
for (i = 0; i < height; ++i)
{
/* fill first half of scanline with source */
if (fetch_src)
{
if (fetch_mask)
{
/* fetch mask before source so that fetching of
source can be optimized */
fetch_mask (mask, mask_x, mask_y + i,
width, (void *)mask_buffer, 0);
if (mask_class == SOURCE_IMAGE_CLASS_HORIZONTAL)
fetch_mask = NULL;
}
if (src_class == SOURCE_IMAGE_CLASS_HORIZONTAL)
{
fetch_src (src, src_x, src_y + i,
width, (void *)src_buffer, 0);
fetch_src = NULL;
}
else
{
fetch_src (src, src_x, src_y + i,
width, (void *)src_buffer, (void *)mask_buffer);
}
}
else if (fetch_mask)
{
fetch_mask (mask, mask_x, mask_y + i,
width, (void *)mask_buffer, 0);
}
if (store)
{
/* fill dest into second half of scanline */
if (fetch_dest)
{
fetch_dest (dest, dest_x, dest_y + i,
width, (void *)dest_buffer, 0);
}
/* blend */
compose (imp->toplevel, op,
(void *)dest_buffer,
(void *)src_buffer,
(void *)mask_buffer,
width);
/* write back */
store (&(dest->bits), dest_x, dest_y + i, width,
(void *)dest_buffer);
}
else
{
/* blend */
compose (imp->toplevel, op,
bits + (dest_y + i) * stride + dest_x,
(void *)src_buffer, (void *)mask_buffer, width);
}
}
if (scanline_buffer != stack_scanline_buffer)
free (scanline_buffer);
}