cairo_content_t
_cairo_content_from_pixman_format (pixman_format_code_t pixman_format)
{
cairo_content_t content;
content = 0;
if (PIXMAN_FORMAT_RGB (pixman_format))
content |= CAIRO_CONTENT_COLOR;
if (PIXMAN_FORMAT_A (pixman_format))
content |= CAIRO_CONTENT_ALPHA;
return content;
}
static void
general_composite_rect (pixman_implementation_t *imp,
pixman_composite_info_t *info)
{
PIXMAN_COMPOSITE_ARGS (info);
uint64_t stack_scanline_buffer[(SCANLINE_BUFFER_LENGTH * 3 + 7) / 8];
uint8_t *scanline_buffer = (uint8_t *) stack_scanline_buffer;
uint8_t *src_buffer, *mask_buffer, *dest_buffer;
pixman_iter_t src_iter, mask_iter, dest_iter;
pixman_combine_32_func_t compose;
pixman_bool_t component_alpha;
iter_flags_t narrow, src_flags;
iter_flags_t rgb16;
int Bpp;
int i;
if ((src_image->common.flags & FAST_PATH_NARROW_FORMAT) &&
(!mask_image || mask_image->common.flags & FAST_PATH_NARROW_FORMAT) &&
(dest_image->common.flags & FAST_PATH_NARROW_FORMAT))
{
narrow = ITER_NARROW;
Bpp = 4;
}
else
{
narrow = 0;
Bpp = 8;
}
// XXX: This special casing is bad. Ideally, we'd keep the general code general perhaps
// by having it deal more specifically with different intermediate formats
if (
(dest_image->common.flags & FAST_PATH_16_FORMAT && (src_image->type == LINEAR || src_image->type == RADIAL)) &&
( op == PIXMAN_OP_SRC ||
(op == PIXMAN_OP_OVER && (src_image->common.flags & FAST_PATH_IS_OPAQUE))
)
) {
rgb16 = ITER_16;
} else {
rgb16 = 0;
}
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 iter */
src_flags = narrow | op_flags[op].src | rgb16;
_pixman_implementation_src_iter_init (imp->toplevel, &src_iter, src_image,
src_x, src_y, width, height,
src_buffer, src_flags);
/* mask iter */
if ((src_flags & (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) ==
(ITER_IGNORE_ALPHA | ITER_IGNORE_RGB))
{
/* If it doesn't matter what the source is, then it doesn't matter
* what the mask is
*/
mask_image = NULL;
}
component_alpha =
mask_image &&
mask_image->common.type == BITS &&
mask_image->common.component_alpha &&
PIXMAN_FORMAT_RGB (mask_image->bits.format);
_pixman_implementation_src_iter_init (
imp->toplevel, &mask_iter, mask_image, mask_x, mask_y, width, height,
mask_buffer, narrow | (component_alpha? 0 : ITER_IGNORE_RGB));
/* dest iter */
_pixman_implementation_dest_iter_init (
imp->toplevel, &dest_iter, dest_image, dest_x, dest_y, width, height,
dest_buffer, narrow | op_flags[op].dst | rgb16);
compose = _pixman_implementation_lookup_combiner (
imp->toplevel, op, component_alpha, narrow, !!rgb16);
if (!compose)
return;
for (i = 0; i < height; ++i)
{
uint32_t *s, *m, *d;
m = mask_iter.get_scanline (&mask_iter, NULL);
s = src_iter.get_scanline (&src_iter, m);
d = dest_iter.get_scanline (&dest_iter, NULL);
compose (imp->toplevel, op, d, s, m, width);
dest_iter.write_back (&dest_iter);
}
if (scanline_buffer != (uint8_t *) stack_scanline_buffer)
free (scanline_buffer);
}
static void
i915_composite_emit_shader(intel_screen_private *intel, CARD8 op)
{
PicturePtr mask_picture = intel->render_mask_picture;
PixmapPtr mask = intel->render_mask;
int src_reg, mask_reg;
Bool is_solid_src, is_solid_mask;
Bool dest_is_alpha = PIXMAN_FORMAT_RGB(intel->render_dest_picture->format) == 0;
int tex_unit, t;
FS_LOCALS();
is_solid_src = intel->render_source_is_solid;
is_solid_mask = intel->render_mask_is_solid;
FS_BEGIN();
/* Declare the registers necessary for our program. */
t = 0;
if (is_solid_src) {
i915_fs_dcl(FS_T8);
src_reg = FS_T8;
} else {
i915_fs_dcl(FS_T0);
i915_fs_dcl(FS_S0);
t++;
}
if (!mask) {
/* No mask, so load directly to output color */
if (! is_solid_src) {
if (dest_is_alpha)
src_reg = FS_R0;
else
src_reg = FS_OC;
if (intel_transform_is_affine(intel->transform[0]))
i915_fs_texld(src_reg, FS_S0, FS_T0);
else
i915_fs_texldp(src_reg, FS_S0, FS_T0);
}
if (src_reg != FS_OC) {
if (dest_is_alpha)
i915_fs_mov(FS_OC, i915_fs_operand(src_reg, W, W, W, W));
else
i915_fs_mov(FS_OC, i915_fs_operand_reg(src_reg));
}
} else {
if (is_solid_mask) {
i915_fs_dcl(FS_T9);
mask_reg = FS_T9;
} else {
i915_fs_dcl(FS_T0 + t);
i915_fs_dcl(FS_S0 + t);
}
tex_unit = 0;
if (! is_solid_src) {
/* Load the source_picture texel */
if (intel_transform_is_affine(intel->transform[tex_unit]))
i915_fs_texld(FS_R0, FS_S0, FS_T0);
else
i915_fs_texldp(FS_R0, FS_S0, FS_T0);
src_reg = FS_R0;
tex_unit++;
}
if (! is_solid_mask) {
/* Load the mask_picture texel */
if (intel_transform_is_affine(intel->transform[tex_unit]))
i915_fs_texld(FS_R1, FS_S0 + t, FS_T0 + t);
else
i915_fs_texldp(FS_R1, FS_S0 + t, FS_T0 + t);
mask_reg = FS_R1;
}
if (dest_is_alpha) {
i915_fs_mul(FS_OC,
i915_fs_operand(src_reg, W, W, W, W),
i915_fs_operand(mask_reg, W, W, W, W));
} else {
/* If component alpha is active in the mask and the blend
* operation uses the source alpha, then we know we don't
* need the source value (otherwise we would have hit a
* fallback earlier), so we provide the source alpha (src.A *
* mask.X) as output color.
* Conversely, if CA is set and we don't need the source alpha,
* then we produce the source value (src.X * mask.X) and the
* source alpha is unused. Otherwise, we provide the non-CA
* source value (src.X * mask.A).
*/
if (mask_picture->componentAlpha &&
PICT_FORMAT_RGB(mask_picture->format)) {
if (i915_blend_op[op].src_alpha) {
i915_fs_mul(FS_OC,
i915_fs_operand(src_reg, W, W, W, W),
i915_fs_operand_reg(mask_reg));
} else {
i915_fs_mul(FS_OC,
i915_fs_operand_reg(src_reg),
i915_fs_operand_reg(mask_reg));
}
} else {
i915_fs_mul(FS_OC,
i915_fs_operand_reg(src_reg),
i915_fs_operand(mask_reg, W, W, W, W));
}
}
}
FS_END();
}
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_composite_info_t *info)
{
PIXMAN_COMPOSITE_ARGS (info);
uint64_t stack_scanline_buffer[(SCANLINE_BUFFER_LENGTH * 3 + 7) / 8];
uint8_t *scanline_buffer = (uint8_t *) stack_scanline_buffer;
uint8_t *src_buffer, *mask_buffer, *dest_buffer;
pixman_iter_t src_iter, mask_iter, dest_iter;
pixman_combine_32_func_t compose;
pixman_bool_t component_alpha;
iter_flags_t narrow, src_iter_flags;
int Bpp;
int i;
if ((src_image->common.flags & FAST_PATH_NARROW_FORMAT) &&
(!mask_image || mask_image->common.flags & FAST_PATH_NARROW_FORMAT) &&
(dest_image->common.flags & FAST_PATH_NARROW_FORMAT))
{
narrow = ITER_NARROW;
Bpp = 4;
}
else
{
narrow = 0;
Bpp = 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 iter */
src_iter_flags = narrow | op_flags[op].src;
_pixman_implementation_src_iter_init (imp->toplevel, &src_iter, src_image,
src_x, src_y, width, height,
src_buffer, src_iter_flags, info->src_flags);
/* mask iter */
if ((src_iter_flags & (ITER_IGNORE_ALPHA | ITER_IGNORE_RGB)) ==
(ITER_IGNORE_ALPHA | ITER_IGNORE_RGB))
{
/* If it doesn't matter what the source is, then it doesn't matter
* what the mask is
*/
mask_image = NULL;
}
component_alpha =
mask_image &&
mask_image->common.type == BITS &&
mask_image->common.component_alpha &&
PIXMAN_FORMAT_RGB (mask_image->bits.format);
_pixman_implementation_src_iter_init (
imp->toplevel, &mask_iter, mask_image, mask_x, mask_y, width, height,
mask_buffer, narrow | (component_alpha? 0 : ITER_IGNORE_RGB), info->mask_flags);
/* dest iter */
_pixman_implementation_dest_iter_init (
imp->toplevel, &dest_iter, dest_image, dest_x, dest_y, width, height,
dest_buffer, narrow | op_flags[op].dst, info->dest_flags);
compose = _pixman_implementation_lookup_combiner (
imp->toplevel, op, component_alpha, narrow);
if (!compose)
return;
for (i = 0; i < height; ++i)
{
uint32_t *s, *m, *d;
m = mask_iter.get_scanline (&mask_iter, NULL);
s = src_iter.get_scanline (&src_iter, m);
d = dest_iter.get_scanline (&dest_iter, NULL);
compose (imp->toplevel, op, d, s, m, width);
dest_iter.write_back (&dest_iter);
}
if (scanline_buffer != (uint8_t *) 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);
}
