#include <stdlib.h>
-/*
- * Operator optimizations based on source or destination opacity
- */
-typedef struct
+static pixman_implementation_t *global_implementation;
+
+#ifdef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR
+static void __attribute__((constructor))
+pixman_constructor (void)
{
- pixman_op_t op;
- pixman_op_t op_src_dst_opaque;
- pixman_op_t op_src_opaque;
- pixman_op_t op_dst_opaque;
-} optimized_operator_info_t;
+ global_implementation = _pixman_choose_implementation ();
+}
+#endif
-static const optimized_operator_info_t optimized_operators[] =
+static force_inline pixman_implementation_t *
+get_implementation (void)
{
- /* Input Operator SRC&DST Opaque SRC Opaque DST Opaque */
- { PIXMAN_OP_OVER, PIXMAN_OP_SRC, PIXMAN_OP_SRC, PIXMAN_OP_OVER },
- { PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_DST, PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_DST },
- { PIXMAN_OP_IN, PIXMAN_OP_SRC, PIXMAN_OP_IN, PIXMAN_OP_SRC },
- { PIXMAN_OP_IN_REVERSE, PIXMAN_OP_DST, PIXMAN_OP_DST, PIXMAN_OP_IN_REVERSE },
- { PIXMAN_OP_OUT, PIXMAN_OP_CLEAR, PIXMAN_OP_OUT, PIXMAN_OP_CLEAR },
- { PIXMAN_OP_OUT_REVERSE, PIXMAN_OP_CLEAR, PIXMAN_OP_CLEAR, PIXMAN_OP_OUT_REVERSE },
- { PIXMAN_OP_ATOP, PIXMAN_OP_SRC, PIXMAN_OP_IN, PIXMAN_OP_OVER },
- { PIXMAN_OP_ATOP_REVERSE, PIXMAN_OP_DST, PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_IN_REVERSE },
- { PIXMAN_OP_XOR, PIXMAN_OP_CLEAR, PIXMAN_OP_OUT, PIXMAN_OP_OUT_REVERSE },
- { PIXMAN_OP_SATURATE, PIXMAN_OP_DST, PIXMAN_OP_OVER_REVERSE, PIXMAN_OP_DST },
- { PIXMAN_OP_NONE }
-};
+#ifndef TOOLCHAIN_SUPPORTS_ATTRIBUTE_CONSTRUCTOR
+ if (!global_implementation)
+ global_implementation = _pixman_choose_implementation ();
+#endif
+ return global_implementation;
+}
-static pixman_implementation_t *imp;
+typedef struct operator_info_t operator_info_t;
-/*
- * Check if the current operator could be optimized
- */
-static const optimized_operator_info_t*
-pixman_operator_can_be_optimized (pixman_op_t op)
+struct operator_info_t
{
- const optimized_operator_info_t *info;
+ uint8_t opaque_info[4];
+};
- for (info = optimized_operators; info->op != PIXMAN_OP_NONE; info++)
- {
- if (info->op == op)
- return info;
- }
- return NULL;
-}
+#define PACK(neither, src, dest, both) \
+ {{ (uint8_t)PIXMAN_OP_ ## neither, \
+ (uint8_t)PIXMAN_OP_ ## src, \
+ (uint8_t)PIXMAN_OP_ ## dest, \
+ (uint8_t)PIXMAN_OP_ ## both }}
+
+static const operator_info_t operator_table[] =
+{
+ /* Neither Opaque Src Opaque Dst Opaque Both Opaque */
+ PACK (CLEAR, CLEAR, CLEAR, CLEAR),
+ PACK (SRC, SRC, SRC, SRC),
+ PACK (DST, DST, DST, DST),
+ PACK (OVER, SRC, OVER, SRC),
+ PACK (OVER_REVERSE, OVER_REVERSE, DST, DST),
+ PACK (IN, IN, SRC, SRC),
+ PACK (IN_REVERSE, DST, IN_REVERSE, DST),
+ PACK (OUT, OUT, CLEAR, CLEAR),
+ PACK (OUT_REVERSE, CLEAR, OUT_REVERSE, CLEAR),
+ PACK (ATOP, IN, OVER, SRC),
+ PACK (ATOP_REVERSE, OVER_REVERSE, IN_REVERSE, DST),
+ PACK (XOR, OUT, OUT_REVERSE, CLEAR),
+ PACK (ADD, ADD, ADD, ADD),
+ PACK (SATURATE, OVER_REVERSE, DST, DST),
+
+ {{ 0 /* 0x0e */ }},
+ {{ 0 /* 0x0f */ }},
+
+ PACK (CLEAR, CLEAR, CLEAR, CLEAR),
+ PACK (SRC, SRC, SRC, SRC),
+ PACK (DST, DST, DST, DST),
+ PACK (DISJOINT_OVER, DISJOINT_OVER, DISJOINT_OVER, DISJOINT_OVER),
+ PACK (DISJOINT_OVER_REVERSE, DISJOINT_OVER_REVERSE, DISJOINT_OVER_REVERSE, DISJOINT_OVER_REVERSE),
+ PACK (DISJOINT_IN, DISJOINT_IN, DISJOINT_IN, DISJOINT_IN),
+ PACK (DISJOINT_IN_REVERSE, DISJOINT_IN_REVERSE, DISJOINT_IN_REVERSE, DISJOINT_IN_REVERSE),
+ PACK (DISJOINT_OUT, DISJOINT_OUT, DISJOINT_OUT, DISJOINT_OUT),
+ PACK (DISJOINT_OUT_REVERSE, DISJOINT_OUT_REVERSE, DISJOINT_OUT_REVERSE, DISJOINT_OUT_REVERSE),
+ PACK (DISJOINT_ATOP, DISJOINT_ATOP, DISJOINT_ATOP, DISJOINT_ATOP),
+ PACK (DISJOINT_ATOP_REVERSE, DISJOINT_ATOP_REVERSE, DISJOINT_ATOP_REVERSE, DISJOINT_ATOP_REVERSE),
+ PACK (DISJOINT_XOR, DISJOINT_XOR, DISJOINT_XOR, DISJOINT_XOR),
+
+ {{ 0 /* 0x1c */ }},
+ {{ 0 /* 0x1d */ }},
+ {{ 0 /* 0x1e */ }},
+ {{ 0 /* 0x1f */ }},
+
+ PACK (CLEAR, CLEAR, CLEAR, CLEAR),
+ PACK (SRC, SRC, SRC, SRC),
+ PACK (DST, DST, DST, DST),
+ PACK (CONJOINT_OVER, CONJOINT_OVER, CONJOINT_OVER, CONJOINT_OVER),
+ PACK (CONJOINT_OVER_REVERSE, CONJOINT_OVER_REVERSE, CONJOINT_OVER_REVERSE, CONJOINT_OVER_REVERSE),
+ PACK (CONJOINT_IN, CONJOINT_IN, CONJOINT_IN, CONJOINT_IN),
+ PACK (CONJOINT_IN_REVERSE, CONJOINT_IN_REVERSE, CONJOINT_IN_REVERSE, CONJOINT_IN_REVERSE),
+ PACK (CONJOINT_OUT, CONJOINT_OUT, CONJOINT_OUT, CONJOINT_OUT),
+ PACK (CONJOINT_OUT_REVERSE, CONJOINT_OUT_REVERSE, CONJOINT_OUT_REVERSE, CONJOINT_OUT_REVERSE),
+ PACK (CONJOINT_ATOP, CONJOINT_ATOP, CONJOINT_ATOP, CONJOINT_ATOP),
+ PACK (CONJOINT_ATOP_REVERSE, CONJOINT_ATOP_REVERSE, CONJOINT_ATOP_REVERSE, CONJOINT_ATOP_REVERSE),
+ PACK (CONJOINT_XOR, CONJOINT_XOR, CONJOINT_XOR, CONJOINT_XOR),
+
+ {{ 0 /* 0x2c */ }},
+ {{ 0 /* 0x2d */ }},
+ {{ 0 /* 0x2e */ }},
+ {{ 0 /* 0x2f */ }},
+
+ PACK (MULTIPLY, MULTIPLY, MULTIPLY, MULTIPLY),
+ PACK (SCREEN, SCREEN, SCREEN, SCREEN),
+ PACK (OVERLAY, OVERLAY, OVERLAY, OVERLAY),
+ PACK (DARKEN, DARKEN, DARKEN, DARKEN),
+ PACK (LIGHTEN, LIGHTEN, LIGHTEN, LIGHTEN),
+ PACK (COLOR_DODGE, COLOR_DODGE, COLOR_DODGE, COLOR_DODGE),
+ PACK (COLOR_BURN, COLOR_BURN, COLOR_BURN, COLOR_BURN),
+ PACK (HARD_LIGHT, HARD_LIGHT, HARD_LIGHT, HARD_LIGHT),
+ PACK (SOFT_LIGHT, SOFT_LIGHT, SOFT_LIGHT, SOFT_LIGHT),
+ PACK (DIFFERENCE, DIFFERENCE, DIFFERENCE, DIFFERENCE),
+ PACK (EXCLUSION, EXCLUSION, EXCLUSION, EXCLUSION),
+ PACK (HSL_HUE, HSL_HUE, HSL_HUE, HSL_HUE),
+ PACK (HSL_SATURATION, HSL_SATURATION, HSL_SATURATION, HSL_SATURATION),
+ PACK (HSL_COLOR, HSL_COLOR, HSL_COLOR, HSL_COLOR),
+ PACK (HSL_LUMINOSITY, HSL_LUMINOSITY, HSL_LUMINOSITY, HSL_LUMINOSITY),
+};
/*
* Optimize the current operator based on opacity of source or destination
* The output operator should be mathematically equivalent to the source.
*/
static pixman_op_t
-pixman_optimize_operator (pixman_op_t op,
- pixman_image_t *src_image,
- pixman_image_t *mask_image,
- pixman_image_t *dst_image)
+optimize_operator (pixman_op_t op,
+ uint32_t src_flags,
+ uint32_t mask_flags,
+ uint32_t dst_flags)
{
- pixman_bool_t is_source_opaque;
- pixman_bool_t is_dest_opaque;
- const optimized_operator_info_t *info = pixman_operator_can_be_optimized (op);
-
- if (!info || mask_image)
- return op;
-
- is_source_opaque = _pixman_image_is_opaque (src_image);
- is_dest_opaque = _pixman_image_is_opaque (dst_image);
+ pixman_bool_t is_source_opaque, is_dest_opaque;
- if (is_source_opaque == FALSE && is_dest_opaque == FALSE)
- return op;
-
- if (is_source_opaque && is_dest_opaque)
- return info->op_src_dst_opaque;
- else if (is_source_opaque)
- return info->op_src_opaque;
- else if (is_dest_opaque)
- return info->op_dst_opaque;
-
- return op;
+#define OPAQUE_SHIFT 13
+
+ COMPILE_TIME_ASSERT (FAST_PATH_IS_OPAQUE == (1 << OPAQUE_SHIFT));
+
+ is_dest_opaque = (dst_flags & FAST_PATH_IS_OPAQUE);
+ is_source_opaque = ((src_flags & mask_flags) & FAST_PATH_IS_OPAQUE);
-}
+ is_dest_opaque >>= OPAQUE_SHIFT - 1;
+ is_source_opaque >>= OPAQUE_SHIFT;
-static void
-apply_workaround (pixman_image_t *image,
- int32_t * x,
- int32_t * y,
- uint32_t ** save_bits,
- int * save_dx,
- int * save_dy)
-{
- if (image && image->common.need_workaround)
- {
- /* Some X servers generate images that point to the
- * wrong place in memory, but then set the clip region
- * to point to the right place. Because of an old bug
- * in pixman, this would actually work.
- *
- * Here we try and undo the damage
- */
- int bpp = PIXMAN_FORMAT_BPP (image->bits.format) / 8;
- pixman_box32_t *extents;
- uint8_t *t;
- int dx, dy;
-
- extents = pixman_region32_extents (&(image->common.clip_region));
- dx = extents->x1;
- dy = extents->y1;
-
- *save_bits = image->bits.bits;
-
- *x -= dx;
- *y -= dy;
- pixman_region32_translate (&(image->common.clip_region), -dx, -dy);
-
- t = (uint8_t *)image->bits.bits;
- t += dy * image->bits.rowstride * 4 + dx * bpp;
- image->bits.bits = (uint32_t *)t;
-
- *save_dx = dx;
- *save_dy = dy;
- }
-}
-
-static void
-unapply_workaround (pixman_image_t *image, uint32_t *bits, int dx, int dy)
-{
- if (image && image->common.need_workaround)
- {
- image->bits.bits = bits;
- pixman_region32_translate (&image->common.clip_region, dx, dy);
- }
+ return operator_table[op].opaque_info[is_dest_opaque | is_source_opaque];
}
/*
pixman_compute_composite_region32 (pixman_region32_t * region,
pixman_image_t * src_image,
pixman_image_t * mask_image,
- pixman_image_t * dst_image,
+ pixman_image_t * dest_image,
int32_t src_x,
int32_t src_y,
int32_t mask_x,
region->extents.x1 = MAX (region->extents.x1, 0);
region->extents.y1 = MAX (region->extents.y1, 0);
- region->extents.x2 = MIN (region->extents.x2, dst_image->bits.width);
- region->extents.y2 = MIN (region->extents.y2, dst_image->bits.height);
+ region->extents.x2 = MIN (region->extents.x2, dest_image->bits.width);
+ region->extents.y2 = MIN (region->extents.y2, dest_image->bits.height);
region->data = 0;
if (region->extents.x1 >= region->extents.x2 ||
region->extents.y1 >= region->extents.y2)
{
- pixman_region32_init (region);
+ region->extents.x1 = 0;
+ region->extents.x2 = 0;
+ region->extents.y1 = 0;
+ region->extents.y2 = 0;
return FALSE;
}
- if (dst_image->common.have_clip_region)
+ if (dest_image->common.have_clip_region)
{
- if (!clip_general_image (region, &dst_image->common.clip_region, 0, 0))
- {
- pixman_region32_fini (region);
+ if (!clip_general_image (region, &dest_image->common.clip_region, 0, 0))
return FALSE;
- }
}
- if (dst_image->common.alpha_map && dst_image->common.alpha_map->common.have_clip_region)
+ if (dest_image->common.alpha_map)
{
- if (!clip_general_image (region, &dst_image->common.alpha_map->common.clip_region,
- -dst_image->common.alpha_origin_x,
- -dst_image->common.alpha_origin_y))
+ if (!pixman_region32_intersect_rect (region, region,
+ dest_image->common.alpha_origin_x,
+ dest_image->common.alpha_origin_y,
+ dest_image->common.alpha_map->width,
+ dest_image->common.alpha_map->height))
{
- pixman_region32_fini (region);
return FALSE;
}
+ if (!pixman_region32_not_empty (region))
+ return FALSE;
+ if (dest_image->common.alpha_map->common.have_clip_region)
+ {
+ if (!clip_general_image (region, &dest_image->common.alpha_map->common.clip_region,
+ -dest_image->common.alpha_origin_x,
+ -dest_image->common.alpha_origin_y))
+ {
+ return FALSE;
+ }
+ }
}
/* clip against src */
if (src_image->common.have_clip_region)
{
if (!clip_source_image (region, src_image, dest_x - src_x, dest_y - src_y))
- {
- pixman_region32_fini (region);
return FALSE;
- }
}
if (src_image->common.alpha_map && src_image->common.alpha_map->common.have_clip_region)
{
dest_x - (src_x - src_image->common.alpha_origin_x),
dest_y - (src_y - src_image->common.alpha_origin_y)))
{
- pixman_region32_fini (region);
return FALSE;
}
}
if (mask_image && mask_image->common.have_clip_region)
{
if (!clip_source_image (region, mask_image, dest_x - mask_x, dest_y - mask_y))
- {
- pixman_region32_fini (region);
return FALSE;
- }
+
if (mask_image->common.alpha_map && mask_image->common.alpha_map->common.have_clip_region)
{
if (!clip_source_image (region, (pixman_image_t *)mask_image->common.alpha_map,
dest_x - (mask_x - mask_image->common.alpha_origin_x),
dest_y - (mask_y - mask_image->common.alpha_origin_y)))
{
- pixman_region32_fini (region);
return FALSE;
}
}
return TRUE;
}
-static void
-walk_region_internal (pixman_implementation_t *imp,
- pixman_op_t op,
- pixman_image_t * src_image,
- pixman_image_t * mask_image,
- pixman_image_t * dst_image,
- 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,
- pixman_bool_t src_repeat,
- pixman_bool_t mask_repeat,
- pixman_region32_t * region,
- pixman_composite_func_t composite_rect)
+typedef struct
{
- int w, h, w_this, h_this;
- int x_msk, y_msk, x_src, y_src, x_dst, y_dst;
- int src_dy = src_y - dest_y;
- int src_dx = src_x - dest_x;
- int mask_dy = mask_y - dest_y;
- int mask_dx = mask_x - dest_x;
- const pixman_box32_t *pbox;
- int n;
-
- pbox = pixman_region32_rectangles (region, &n);
-
- /* Fast path for non-repeating sources */
- if (!src_repeat && !mask_repeat)
- {
- while (n--)
- {
- (*composite_rect) (imp, op,
- src_image, mask_image, dst_image,
- pbox->x1 + src_dx,
- pbox->y1 + src_dy,
- pbox->x1 + mask_dx,
- pbox->y1 + mask_dy,
- pbox->x1,
- pbox->y1,
- pbox->x2 - pbox->x1,
- pbox->y2 - pbox->y1);
-
- pbox++;
- }
-
- return;
- }
-
- while (n--)
+ pixman_fixed_48_16_t x1;
+ pixman_fixed_48_16_t y1;
+ pixman_fixed_48_16_t x2;
+ pixman_fixed_48_16_t y2;
+} box_48_16_t;
+
+static pixman_bool_t
+compute_transformed_extents (pixman_transform_t *transform,
+ const pixman_box32_t *extents,
+ box_48_16_t *transformed)
+{
+ pixman_fixed_48_16_t tx1, ty1, tx2, ty2;
+ pixman_fixed_t x1, y1, x2, y2;
+ int i;
+
+ x1 = pixman_int_to_fixed (extents->x1) + pixman_fixed_1 / 2;
+ y1 = pixman_int_to_fixed (extents->y1) + pixman_fixed_1 / 2;
+ x2 = pixman_int_to_fixed (extents->x2) - pixman_fixed_1 / 2;
+ y2 = pixman_int_to_fixed (extents->y2) - pixman_fixed_1 / 2;
+
+ if (!transform)
{
- h = pbox->y2 - pbox->y1;
- y_src = pbox->y1 + src_dy;
- y_msk = pbox->y1 + mask_dy;
- y_dst = pbox->y1;
+ transformed->x1 = x1;
+ transformed->y1 = y1;
+ transformed->x2 = x2;
+ transformed->y2 = y2;
- while (h)
- {
- h_this = h;
- w = pbox->x2 - pbox->x1;
- x_src = pbox->x1 + src_dx;
- x_msk = pbox->x1 + mask_dx;
- x_dst = pbox->x1;
+ return TRUE;
+ }
- if (mask_repeat)
- {
- y_msk = MOD (y_msk, mask_image->bits.height);
- if (h_this > mask_image->bits.height - y_msk)
- h_this = mask_image->bits.height - y_msk;
- }
+ tx1 = ty1 = INT64_MAX;
+ tx2 = ty2 = INT64_MIN;
- if (src_repeat)
- {
- y_src = MOD (y_src, src_image->bits.height);
- if (h_this > src_image->bits.height - y_src)
- h_this = src_image->bits.height - y_src;
- }
+ for (i = 0; i < 4; ++i)
+ {
+ pixman_fixed_48_16_t tx, ty;
+ pixman_vector_t v;
- while (w)
- {
- w_this = w;
-
- if (mask_repeat)
- {
- x_msk = MOD (x_msk, mask_image->bits.width);
- if (w_this > mask_image->bits.width - x_msk)
- w_this = mask_image->bits.width - x_msk;
- }
-
- if (src_repeat)
- {
- x_src = MOD (x_src, src_image->bits.width);
- if (w_this > src_image->bits.width - x_src)
- w_this = src_image->bits.width - x_src;
- }
-
- (*composite_rect) (imp, op,
- src_image, mask_image, dst_image,
- x_src, y_src, x_msk, y_msk, x_dst, y_dst,
- w_this, h_this);
- w -= w_this;
-
- x_src += w_this;
- x_msk += w_this;
- x_dst += w_this;
- }
+ v.vector[0] = (i & 0x01)? x1 : x2;
+ v.vector[1] = (i & 0x02)? y1 : y2;
+ v.vector[2] = pixman_fixed_1;
- h -= h_this;
- y_src += h_this;
- y_msk += h_this;
- y_dst += h_this;
- }
+ if (!pixman_transform_point (transform, &v))
+ return FALSE;
- pbox++;
+ tx = (pixman_fixed_48_16_t)v.vector[0];
+ ty = (pixman_fixed_48_16_t)v.vector[1];
+
+ if (tx < tx1)
+ tx1 = tx;
+ if (ty < ty1)
+ ty1 = ty;
+ if (tx > tx2)
+ tx2 = tx;
+ if (ty > ty2)
+ ty2 = ty;
}
+
+ transformed->x1 = tx1;
+ transformed->y1 = ty1;
+ transformed->x2 = tx2;
+ transformed->y2 = ty2;
+
+ return TRUE;
}
-static void
-get_image_info (pixman_image_t *image,
- pixman_format_code_t *code,
- uint32_t *flags)
+#define IS_16BIT(x) (((x) >= INT16_MIN) && ((x) <= INT16_MAX))
+#define ABS(f) (((f) < 0)? (-(f)) : (f))
+#define IS_16_16(f) (((f) >= pixman_min_fixed_48_16 && ((f) <= pixman_max_fixed_48_16)))
+
+static pixman_bool_t
+analyze_extent (pixman_image_t *image,
+ const pixman_box32_t *extents,
+ uint32_t *flags)
{
- *flags = 0;
-
- if (!image->common.transform)
+ pixman_transform_t *transform;
+ pixman_fixed_t x_off, y_off;
+ pixman_fixed_t width, height;
+ pixman_fixed_t *params;
+ box_48_16_t transformed;
+ pixman_box32_t exp_extents;
+
+ if (!image)
+ return TRUE;
+
+ /* Some compositing functions walk one step
+ * outside the destination rectangle, so we
+ * check here that the expanded-by-one source
+ * extents in destination space fits in 16 bits
+ */
+ if (!IS_16BIT (extents->x1 - 1) ||
+ !IS_16BIT (extents->y1 - 1) ||
+ !IS_16BIT (extents->x2 + 1) ||
+ !IS_16BIT (extents->y2 + 1))
{
- *flags |= FAST_PATH_ID_TRANSFORM;
+ return FALSE;
}
- else
+
+ transform = image->common.transform;
+ if (image->common.type == BITS)
{
- if (image->common.transform->matrix[0][1] == 0 &&
- image->common.transform->matrix[1][0] == 0 &&
- image->common.transform->matrix[2][0] == 0 &&
- image->common.transform->matrix[2][1] == 0 &&
- image->common.transform->matrix[2][2] == pixman_fixed_1)
+ /* During repeat mode calculations we might convert the
+ * width/height of an image to fixed 16.16, so we need
+ * them to be smaller than 16 bits.
+ */
+ if (image->bits.width >= 0x7fff || image->bits.height >= 0x7fff)
+ return FALSE;
+
+ if ((image->common.flags & FAST_PATH_ID_TRANSFORM) == FAST_PATH_ID_TRANSFORM &&
+ extents->x1 >= 0 &&
+ extents->y1 >= 0 &&
+ extents->x2 <= image->bits.width &&
+ extents->y2 <= image->bits.height)
{
- *flags |= FAST_PATH_SCALE_TRANSFORM;
+ *flags |= FAST_PATH_SAMPLES_COVER_CLIP_NEAREST;
+ return TRUE;
+ }
+
+ switch (image->common.filter)
+ {
+ case PIXMAN_FILTER_CONVOLUTION:
+ params = image->common.filter_params;
+ x_off = - pixman_fixed_e - ((params[0] - pixman_fixed_1) >> 1);
+ y_off = - pixman_fixed_e - ((params[1] - pixman_fixed_1) >> 1);
+ width = params[0];
+ height = params[1];
+ break;
+
+ case PIXMAN_FILTER_GOOD:
+ case PIXMAN_FILTER_BEST:
+ case PIXMAN_FILTER_BILINEAR:
+ x_off = - pixman_fixed_1 / 2;
+ y_off = - pixman_fixed_1 / 2;
+ width = pixman_fixed_1;
+ height = pixman_fixed_1;
+ break;
+
+ case PIXMAN_FILTER_FAST:
+ case PIXMAN_FILTER_NEAREST:
+ x_off = - pixman_fixed_e;
+ y_off = - pixman_fixed_e;
+ width = 0;
+ height = 0;
+ break;
+
+ default:
+ return FALSE;
}
}
-
- if (!image->common.alpha_map)
- *flags |= FAST_PATH_NO_ALPHA_MAP;
-
- if (image->common.filter != PIXMAN_FILTER_CONVOLUTION)
- {
- *flags |= FAST_PATH_NO_CONVOLUTION_FILTER;
-
- if (image->common.filter == PIXMAN_FILTER_NEAREST)
- *flags |= FAST_PATH_NEAREST_FILTER;
- }
-
- if (image->common.repeat != PIXMAN_REPEAT_PAD)
- *flags |= FAST_PATH_NO_PAD_REPEAT;
-
- if (image->common.repeat != PIXMAN_REPEAT_REFLECT)
- *flags |= FAST_PATH_NO_REFLECT_REPEAT;
-
- *flags |= (FAST_PATH_NO_ACCESSORS | FAST_PATH_NO_WIDE_FORMAT);
- if (image->type == BITS)
+ else
{
- if (image->bits.read_func || image->bits.write_func)
- *flags &= ~FAST_PATH_NO_ACCESSORS;
-
- if (PIXMAN_FORMAT_IS_WIDE (image->bits.format))
- *flags &= ~FAST_PATH_NO_WIDE_FORMAT;
+ x_off = 0;
+ y_off = 0;
+ width = 0;
+ height = 0;
}
-
- if (image->common.component_alpha)
- *flags |= FAST_PATH_COMPONENT_ALPHA;
- else
- *flags |= FAST_PATH_UNIFIED_ALPHA;
-
- if (_pixman_image_is_solid (image))
- *code = PIXMAN_solid;
- else if (image->common.type == BITS)
- *code = image->bits.format;
- else
- *code = PIXMAN_unknown;
-}
-static force_inline pixman_bool_t
-image_covers (pixman_image_t *image,
- pixman_box32_t *extents,
- int x,
- int y)
-{
- if (image->common.type == BITS &&
- image->common.repeat == PIXMAN_REPEAT_NONE)
+ if (!compute_transformed_extents (transform, extents, &transformed))
+ return FALSE;
+
+ /* Expand the source area by a tiny bit so account of different rounding that
+ * may happen during sampling. Note that (8 * pixman_fixed_e) is very far from
+ * 0.5 so this won't cause the area computed to be overly pessimistic.
+ */
+ transformed.x1 -= 8 * pixman_fixed_e;
+ transformed.y1 -= 8 * pixman_fixed_e;
+ transformed.x2 += 8 * pixman_fixed_e;
+ transformed.y2 += 8 * pixman_fixed_e;
+
+ if (image->common.type == BITS)
{
- if (x > extents->x1 || y > extents->y1 ||
- x + image->bits.width < extents->x2 ||
- y + image->bits.height < extents->y2)
+ if (pixman_fixed_to_int (transformed.x1) >= 0 &&
+ pixman_fixed_to_int (transformed.y1) >= 0 &&
+ pixman_fixed_to_int (transformed.x2) < image->bits.width &&
+ pixman_fixed_to_int (transformed.y2) < image->bits.height)
{
- return FALSE;
+ *flags |= FAST_PATH_SAMPLES_COVER_CLIP_NEAREST;
+ }
+
+ if (pixman_fixed_to_int (transformed.x1 - pixman_fixed_1 / 2) >= 0 &&
+ pixman_fixed_to_int (transformed.y1 - pixman_fixed_1 / 2) >= 0 &&
+ pixman_fixed_to_int (transformed.x2 + pixman_fixed_1 / 2) < image->bits.width &&
+ pixman_fixed_to_int (transformed.y2 + pixman_fixed_1 / 2) < image->bits.height)
+ {
+ *flags |= FAST_PATH_SAMPLES_COVER_CLIP_BILINEAR;
}
}
+ /* Check we don't overflow when the destination extents are expanded by one.
+ * This ensures that compositing functions can simply walk the source space
+ * using 16.16 variables without worrying about overflow.
+ */
+ exp_extents = *extents;
+ exp_extents.x1 -= 1;
+ exp_extents.y1 -= 1;
+ exp_extents.x2 += 1;
+ exp_extents.y2 += 1;
+
+ if (!compute_transformed_extents (transform, &exp_extents, &transformed))
+ return FALSE;
+
+ if (!IS_16_16 (transformed.x1 + x_off - 8 * pixman_fixed_e) ||
+ !IS_16_16 (transformed.y1 + y_off - 8 * pixman_fixed_e) ||
+ !IS_16_16 (transformed.x2 + x_off + 8 * pixman_fixed_e + width) ||
+ !IS_16_16 (transformed.y2 + y_off + 8 * pixman_fixed_e + height))
+ {
+ return FALSE;
+ }
+
return TRUE;
}
-static void
-do_composite (pixman_implementation_t *imp,
- pixman_op_t op,
- pixman_image_t *src,
- pixman_image_t *mask,
- pixman_image_t *dest,
- int src_x,
- int src_y,
- int mask_x,
- int mask_y,
- int dest_x,
- int dest_y,
- int width,
- int height)
+/*
+ * Work around GCC bug causing crashes in Mozilla with SSE2
+ *
+ * When using -msse, gcc generates movdqa instructions assuming that
+ * the stack is 16 byte aligned. Unfortunately some applications, such
+ * as Mozilla and Mono, end up aligning the stack to 4 bytes, which
+ * causes the movdqa instructions to fail.
+ *
+ * The __force_align_arg_pointer__ makes gcc generate a prologue that
+ * realigns the stack pointer to 16 bytes.
+ *
+ * On x86-64 this is not necessary because the standard ABI already
+ * calls for a 16 byte aligned stack.
+ *
+ * See https://bugs.freedesktop.org/show_bug.cgi?id=15693
+ */
+#if defined (USE_SSE2) && defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__)
+__attribute__((__force_align_arg_pointer__))
+#endif
+PIXMAN_EXPORT void
+pixman_image_composite32 (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)
{
pixman_format_code_t src_format, mask_format, dest_format;
uint32_t src_flags, mask_flags, dest_flags;
- pixman_bool_t src_repeat, mask_repeat;
pixman_region32_t region;
- pixman_box32_t *extents;
+ pixman_box32_t extents;
+ pixman_implementation_t *imp;
+ pixman_composite_func_t func;
+
+ _pixman_image_validate (src);
+ if (mask)
+ _pixman_image_validate (mask);
+ _pixman_image_validate (dest);
+
+ src_format = src->common.extended_format_code;
+ src_flags = src->common.flags;
- get_image_info (src, &src_format, &src_flags);
if (mask)
{
- get_image_info (mask, &mask_format, &mask_flags);
+ mask_format = mask->common.extended_format_code;
+ mask_flags = mask->common.flags;
}
else
{
mask_format = PIXMAN_null;
- mask_flags = 0;
+ mask_flags = FAST_PATH_IS_OPAQUE;
}
- get_image_info (dest, &dest_format, &dest_flags);
-
+
+ dest_format = dest->common.extended_format_code;
+ dest_flags = dest->common.flags;
+
/* Check for pixbufs */
if ((mask_format == PIXMAN_a8r8g8b8 || mask_format == PIXMAN_a8b8g8r8) &&
(src->type == BITS && src->bits.bits == mask->bits.bits) &&
else if (src_format == PIXMAN_x8r8g8b8)
src_format = mask_format = PIXMAN_rpixbuf;
}
-
- src_repeat =
- src->type == BITS &&
- src_flags & FAST_PATH_ID_TRANSFORM &&
- src->common.repeat == PIXMAN_REPEAT_NORMAL &&
- src_format != PIXMAN_solid;
-
- mask_repeat =
- mask &&
- mask->type == BITS &&
- mask_flags & FAST_PATH_ID_TRANSFORM &&
- mask->common.repeat == PIXMAN_REPEAT_NORMAL &&
- mask_format != PIXMAN_solid;
-
+
pixman_region32_init (®ion);
-
+
if (!pixman_compute_composite_region32 (
®ion, src, mask, dest,
src_x, src_y, mask_x, mask_y, dest_x, dest_y, width, height))
{
- return;
+ goto out;
}
-
- extents = pixman_region32_extents (®ion);
-
- if (image_covers (src, extents, dest_x - src_x, dest_y - src_y))
- src_flags |= FAST_PATH_COVERS_CLIP;
-
- if (mask && image_covers (mask, extents, dest_x - mask_x, dest_y - mask_y))
- mask_flags |= FAST_PATH_COVERS_CLIP;
-
- while (imp)
+
+ extents = *pixman_region32_extents (®ion);
+
+ extents.x1 -= dest_x - src_x;
+ extents.y1 -= dest_y - src_y;
+ extents.x2 -= dest_x - src_x;
+ extents.y2 -= dest_y - src_y;
+
+ if (!analyze_extent (src, &extents, &src_flags))
+ goto out;
+
+ extents.x1 -= src_x - mask_x;
+ extents.y1 -= src_y - mask_y;
+ extents.x2 -= src_x - mask_x;
+ extents.y2 -= src_y - mask_y;
+
+ if (!analyze_extent (mask, &extents, &mask_flags))
+ goto out;
+
+ /* If the clip is within the source samples, and the samples are
+ * opaque, then the source is effectively opaque.
+ */
+#define NEAREST_OPAQUE (FAST_PATH_SAMPLES_OPAQUE | \
+ FAST_PATH_NEAREST_FILTER | \
+ FAST_PATH_SAMPLES_COVER_CLIP_NEAREST)
+#define BILINEAR_OPAQUE (FAST_PATH_SAMPLES_OPAQUE | \
+ FAST_PATH_BILINEAR_FILTER | \
+ FAST_PATH_SAMPLES_COVER_CLIP_BILINEAR)
+
+ if ((src_flags & NEAREST_OPAQUE) == NEAREST_OPAQUE ||
+ (src_flags & BILINEAR_OPAQUE) == BILINEAR_OPAQUE)
+ {
+ src_flags |= FAST_PATH_IS_OPAQUE;
+ }
+
+ if ((mask_flags & NEAREST_OPAQUE) == NEAREST_OPAQUE ||
+ (mask_flags & BILINEAR_OPAQUE) == BILINEAR_OPAQUE)
{
- const pixman_fast_path_t *info;
-
- for (info = imp->fast_paths; info->op != PIXMAN_OP_NONE; ++info)
+ mask_flags |= FAST_PATH_IS_OPAQUE;
+ }
+
+ /*
+ * Check if we can replace our operator by a simpler one
+ * if the src or dest are opaque. The output operator should be
+ * mathematically equivalent to the source.
+ */
+ op = optimize_operator (op, src_flags, mask_flags, dest_flags);
+
+ if (_pixman_lookup_composite_function (
+ get_implementation (), op,
+ src_format, src_flags, mask_format, mask_flags, dest_format, dest_flags,
+ &imp, &func))
+ {
+ pixman_composite_info_t info;
+ const pixman_box32_t *pbox;
+ int n;
+
+ info.op = op;
+ info.src_image = src;
+ info.mask_image = mask;
+ info.dest_image = dest;
+ info.src_flags = src_flags;
+ info.mask_flags = mask_flags;
+ info.dest_flags = dest_flags;
+
+ pbox = pixman_region32_rectangles (®ion, &n);
+
+ while (n--)
{
- if ((info->op == op || info->op == PIXMAN_OP_any) &&
- /* src */
- ((info->src_format == src_format) ||
- (info->src_format == PIXMAN_any)) &&
- (info->src_flags & src_flags) == info->src_flags &&
- /* mask */
- ((info->mask_format == mask_format) ||
- (info->mask_format == PIXMAN_any)) &&
- (info->mask_flags & mask_flags) == info->mask_flags &&
- /* dest */
- ((info->dest_format == dest_format) ||
- (info->dest_format == PIXMAN_any)) &&
- (info->dest_flags & dest_flags) == info->dest_flags)
- {
- walk_region_internal (imp, op,
- src, mask, dest,
- src_x, src_y, mask_x, mask_y,
- dest_x, dest_y,
- width, height,
- src_repeat, mask_repeat,
- ®ion,
- info->func);
-
- goto done;
- }
+ info.src_x = pbox->x1 + src_x - dest_x;
+ info.src_y = pbox->y1 + src_y - dest_y;
+ info.mask_x = pbox->x1 + mask_x - dest_x;
+ info.mask_y = pbox->y1 + mask_y - dest_y;
+ info.dest_x = pbox->x1;
+ info.dest_y = pbox->y1;
+ info.width = pbox->x2 - pbox->x1;
+ info.height = pbox->y2 - pbox->y1;
+
+ func (imp, &info);
+
+ pbox++;
}
-
- imp = imp->delegate;
}
-done:
+out:
pixman_region32_fini (®ion);
}
-/*
- * Work around GCC bug causing crashes in Mozilla with SSE2
- *
- * When using -msse, gcc generates movdqa instructions assuming that
- * the stack is 16 byte aligned. Unfortunately some applications, such
- * as Mozilla and Mono, end up aligning the stack to 4 bytes, which
- * causes the movdqa instructions to fail.
- *
- * The __force_align_arg_pointer__ makes gcc generate a prologue that
- * realigns the stack pointer to 16 bytes.
- *
- * On x86-64 this is not necessary because the standard ABI already
- * calls for a 16 byte aligned stack.
- *
- * See https://bugs.freedesktop.org/show_bug.cgi?id=15693
- */
-#if defined (USE_SSE2) && defined(__GNUC__) && !defined(__x86_64__) && !defined(__amd64__)
-__attribute__((__force_align_arg_pointer__))
-#endif
PIXMAN_EXPORT void
pixman_image_composite (pixman_op_t op,
pixman_image_t * src,
mask_x, mask_y, dest_x, dest_y, width, height);
}
-PIXMAN_EXPORT void
-pixman_image_composite32 (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)
-{
- uint32_t *src_bits;
- int src_dx, src_dy;
- uint32_t *mask_bits;
- int mask_dx, mask_dy;
- uint32_t *dest_bits;
- int dest_dx, dest_dy;
- pixman_bool_t need_workaround;
-
- _pixman_image_validate (src);
- if (mask)
- _pixman_image_validate (mask);
- _pixman_image_validate (dest);
-
- /*
- * Check if we can replace our operator by a simpler one
- * if the src or dest are opaque. The output operator should be
- * mathematically equivalent to the source.
- */
- op = pixman_optimize_operator(op, src, mask, dest);
- if (op == PIXMAN_OP_DST ||
- op == PIXMAN_OP_CONJOINT_DST ||
- op == PIXMAN_OP_DISJOINT_DST)
- {
- return;
- }
-
- if (!imp)
- imp = _pixman_choose_implementation ();
-
- need_workaround =
- (src->common.need_workaround) ||
- (mask && mask->common.need_workaround) ||
- (dest->common.need_workaround);
-
- if (need_workaround)
- {
- apply_workaround (src, &src_x, &src_y, &src_bits, &src_dx, &src_dy);
- apply_workaround (mask, &mask_x, &mask_y, &mask_bits, &mask_dx, &mask_dy);
- apply_workaround (dest, &dest_x, &dest_y, &dest_bits, &dest_dx, &dest_dy);
- }
-
- do_composite (imp, op,
- src, mask, dest,
- src_x, src_y,
- mask_x, mask_y,
- dest_x, dest_y,
- width, height);
-
- if (need_workaround)
- {
- if (src->common.need_workaround)
- unapply_workaround (src, src_bits, src_dx, src_dy);
- if (mask && mask->common.need_workaround)
- unapply_workaround (mask, mask_bits, mask_dx, mask_dy);
- if (dest->common.need_workaround)
- unapply_workaround (dest, dest_bits, dest_dx, dest_dy);
- }
-}
-
PIXMAN_EXPORT pixman_bool_t
pixman_blt (uint32_t *src_bits,
uint32_t *dst_bits,
int dst_bpp,
int src_x,
int src_y,
- int dst_x,
- int dst_y,
+ int dest_x,
+ int dest_y,
int width,
int height)
{
- if (!imp)
- imp = _pixman_choose_implementation ();
-
- return _pixman_implementation_blt (imp, src_bits, dst_bits, src_stride, dst_stride,
+ return _pixman_implementation_blt (get_implementation(),
+ src_bits, dst_bits, src_stride, dst_stride,
src_bpp, dst_bpp,
src_x, src_y,
- dst_x, dst_y,
+ dest_x, dest_y,
width, height);
}
int height,
uint32_t xor)
{
- if (!imp)
- imp = _pixman_choose_implementation ();
-
- return _pixman_implementation_fill (imp, bits, stride, bpp, x, y, width, height, xor);
+ return _pixman_implementation_fill (
+ get_implementation(), bits, stride, bpp, x, y, width, height, xor);
}
static uint32_t
format == PIXMAN_x8b8g8r8 ||
format == PIXMAN_b8g8r8a8 ||
format == PIXMAN_b8g8r8x8 ||
+ format == PIXMAN_r8g8b8a8 ||
+ format == PIXMAN_r8g8b8x8 ||
format == PIXMAN_r5g6b5 ||
format == PIXMAN_b5g6r5 ||
- format == PIXMAN_a8))
+ format == PIXMAN_a8 ||
+ format == PIXMAN_a1))
{
return FALSE;
}
((c & 0x0000ff00) << 8) |
((c & 0x000000ff) << 24);
}
+ if (PIXMAN_FORMAT_TYPE (format) == PIXMAN_TYPE_RGBA)
+ c = ((c & 0xff000000) >> 24) | (c << 8);
- if (format == PIXMAN_a8)
+ if (format == PIXMAN_a1)
+ c = c >> 31;
+ else if (format == PIXMAN_a8)
c = c >> 24;
else if (format == PIXMAN_r5g6b5 ||
format == PIXMAN_b5g6r5)
case PIXMAN_x8b8g8r8:
case PIXMAN_b8g8r8a8:
case PIXMAN_b8g8r8x8:
+ case PIXMAN_r8g8b8a8:
+ case PIXMAN_r8g8b8x8:
case PIXMAN_r8g8b8:
case PIXMAN_b8g8r8:
case PIXMAN_r5g6b5:
case PIXMAN_b5g6r5:
+ case PIXMAN_x14r6g6b6:
/* 16 bpp formats */
case PIXMAN_a1r5g5b5:
case PIXMAN_x1r5g5b5:
pixman_compute_composite_region (pixman_region16_t * region,
pixman_image_t * src_image,
pixman_image_t * mask_image,
- pixman_image_t * dst_image,
+ pixman_image_t * dest_image,
int16_t src_x,
int16_t src_y,
int16_t mask_x,
pixman_region32_init (&r32);
retval = pixman_compute_composite_region32 (
- &r32, src_image, mask_image, dst_image,
+ &r32, src_image, mask_image, dest_image,
src_x, src_y, mask_x, mask_y, dest_x, dest_y,
width, height);
projects / profile / ivi / pixman.git / blobdiff