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-rw-r--r--gfx/cairo/pixman-16-bit-pipeline.patch1242
1 files changed, 0 insertions, 1242 deletions
diff --git a/gfx/cairo/pixman-16-bit-pipeline.patch b/gfx/cairo/pixman-16-bit-pipeline.patch
deleted file mode 100644
index 8a7878ca2..000000000
--- a/gfx/cairo/pixman-16-bit-pipeline.patch
+++ /dev/null
@@ -1,1242 +0,0 @@
-diff --git a/gfx/cairo/libpixman/src/pixman-access.c b/gfx/cairo/libpixman/src/pixman-access.c
---- a/gfx/cairo/libpixman/src/pixman-access.c
-+++ b/gfx/cairo/libpixman/src/pixman-access.c
-@@ -933,16 +933,54 @@ store_scanline_x2b10g10r10 (bits_image_t
- {
- WRITE (image, pixel++,
- ((values[i] >> 38) & 0x3ff) |
- ((values[i] >> 12) & 0xffc00) |
- ((values[i] << 14) & 0x3ff00000));
- }
- }
-
-+static void
-+store_scanline_16 (bits_image_t * image,
-+ int x,
-+ int y,
-+ int width,
-+ const uint32_t *v)
-+{
-+ uint16_t *bits = (uint16_t*)(image->bits + image->rowstride * y);
-+ uint16_t *values = (uint16_t *)v;
-+ uint16_t *pixel = bits + x;
-+ int i;
-+
-+ for (i = 0; i < width; ++i)
-+ {
-+ WRITE (image, pixel++, values[i]);
-+ }
-+}
-+
-+static void
-+fetch_scanline_16 (pixman_image_t *image,
-+ int x,
-+ int y,
-+ int width,
-+ uint32_t * b,
-+ const uint32_t *mask)
-+{
-+ const uint16_t *bits = (uint16_t*)(image->bits.bits + y * image->bits.rowstride);
-+ const uint16_t *pixel = bits + x;
-+ int i;
-+ uint16_t *buffer = (uint16_t *)b;
-+
-+ for (i = 0; i < width; ++i)
-+ {
-+ *buffer++ = READ (image, pixel++);
-+ }
-+}
-+
-+
- /*
- * 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,
-@@ -1044,32 +1082,47 @@ fetch_pixel_generic_lossy_32 (bits_image
- pixman_contract (&result, &pixel64, 1);
-
- return result;
- }
-
- typedef struct
- {
- pixman_format_code_t format;
-+ fetch_scanline_t fetch_scanline_16;
- 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_16;
- store_scanline_t store_scanline_32;
- store_scanline_t store_scanline_64;
- } format_info_t;
-
- #define FORMAT_INFO(format) \
- { \
- PIXMAN_ ## format, \
-+ NULL, \
- fetch_scanline_ ## format, \
- fetch_scanline_generic_64, \
- fetch_pixel_ ## format, fetch_pixel_generic_64, \
-+ NULL, \
- store_scanline_ ## format, store_scanline_generic_64 \
- }
-+#define FORMAT_INFO16(format) \
-+ { \
-+ PIXMAN_ ## format, \
-+ fetch_scanline_16, \
-+ fetch_scanline_ ## format, \
-+ fetch_scanline_generic_64, \
-+ fetch_pixel_ ## format, fetch_pixel_generic_64, \
-+ store_scanline_16, \
-+ 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),
-@@ -1079,18 +1132,18 @@ static const format_info_t accessors[] =
- FORMAT_INFO (r8g8b8x8),
- FORMAT_INFO (x14r6g6b6),
-
- /* 24bpp formats */
- FORMAT_INFO (r8g8b8),
- FORMAT_INFO (b8g8r8),
-
- /* 16bpp formats */
-- FORMAT_INFO (r5g6b5),
-- FORMAT_INFO (b5g6r5),
-+ FORMAT_INFO16 (r5g6b5),
-+ FORMAT_INFO16 (b5g6r5),
-
- FORMAT_INFO (a1r5g5b5),
- FORMAT_INFO (x1r5g5b5),
- FORMAT_INFO (a1b5g5r5),
- FORMAT_INFO (x1b5g5r5),
- FORMAT_INFO (a4r4g4b4),
- FORMAT_INFO (x4r4g4b4),
- FORMAT_INFO (a4b4g4r4),
-@@ -1132,62 +1185,64 @@ static const format_info_t accessors[] =
-
- /* 1bpp formats */
- FORMAT_INFO (a1),
- FORMAT_INFO (g1),
-
- /* Wide formats */
-
- { PIXMAN_a2r10g10b10,
-- NULL, fetch_scanline_a2r10g10b10,
-+ NULL, NULL, fetch_scanline_a2r10g10b10,
- fetch_pixel_generic_lossy_32, fetch_pixel_a2r10g10b10,
- NULL, store_scanline_a2r10g10b10 },
-
- { PIXMAN_x2r10g10b10,
-- NULL, fetch_scanline_x2r10g10b10,
-+ NULL, NULL, fetch_scanline_x2r10g10b10,
- fetch_pixel_generic_lossy_32, fetch_pixel_x2r10g10b10,
- NULL, store_scanline_x2r10g10b10 },
-
- { PIXMAN_a2b10g10r10,
-- NULL, fetch_scanline_a2b10g10r10,
-+ NULL, NULL, fetch_scanline_a2b10g10r10,
- fetch_pixel_generic_lossy_32, fetch_pixel_a2b10g10r10,
- NULL, store_scanline_a2b10g10r10 },
-
- { PIXMAN_x2b10g10r10,
-- NULL, fetch_scanline_x2b10g10r10,
-+ NULL, 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,
-+ NULL, 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,
-+ NULL, 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_16 = info->fetch_scanline_16;
- 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_16 = info->store_scanline_16;
- image->store_scanline_32 = info->store_scanline_32;
- image->store_scanline_64 = info->store_scanline_64;
-
- return;
- }
-
- info++;
- }
-diff --git a/gfx/cairo/libpixman/src/pixman-bits-image.c b/gfx/cairo/libpixman/src/pixman-bits-image.c
---- a/gfx/cairo/libpixman/src/pixman-bits-image.c
-+++ b/gfx/cairo/libpixman/src/pixman-bits-image.c
-@@ -1247,16 +1247,31 @@ src_get_scanline_wide (pixman_iter_t *it
-
- void
- _pixman_bits_image_src_iter_init (pixman_image_t *image, pixman_iter_t *iter)
- {
- if (iter->flags & ITER_NARROW)
- iter->get_scanline = src_get_scanline_narrow;
- else
- iter->get_scanline = src_get_scanline_wide;
-+
-+}
-+
-+static uint32_t *
-+dest_get_scanline_16 (pixman_iter_t *iter, const uint32_t *mask)
-+{
-+ pixman_image_t *image = iter->image;
-+ int x = iter->x;
-+ int y = iter->y;
-+ int width = iter->width;
-+ uint32_t * buffer = iter->buffer;
-+
-+ image->bits.fetch_scanline_16 (image, x, y, width, buffer, mask);
-+
-+ return iter->buffer;
- }
-
- static uint32_t *
- dest_get_scanline_narrow (pixman_iter_t *iter, const uint32_t *mask)
- {
- pixman_image_t *image = iter->image;
- int x = iter->x;
- int y = iter->y;
-@@ -1327,16 +1342,30 @@ dest_get_scanline_wide (pixman_iter_t *i
- free (alpha);
- }
- }
-
- return iter->buffer;
- }
-
- static void
-+dest_write_back_16 (pixman_iter_t *iter)
-+{
-+ bits_image_t * image = &iter->image->bits;
-+ int x = iter->x;
-+ int y = iter->y;
-+ int width = iter->width;
-+ const uint32_t *buffer = iter->buffer;
-+
-+ image->store_scanline_16 (image, x, y, width, buffer);
-+
-+ iter->y++;
-+}
-+
-+static void
- dest_write_back_narrow (pixman_iter_t *iter)
- {
- bits_image_t * image = &iter->image->bits;
- int x = iter->x;
- int y = iter->y;
- int width = iter->width;
- const uint32_t *buffer = iter->buffer;
-
-@@ -1375,28 +1404,41 @@ dest_write_back_wide (pixman_iter_t *ite
- }
-
- iter->y++;
- }
-
- void
- _pixman_bits_image_dest_iter_init (pixman_image_t *image, pixman_iter_t *iter)
- {
-- if (iter->flags & ITER_NARROW)
-+ if (iter->flags & ITER_16)
-+ {
-+ if ((iter->flags & (ITER_IGNORE_RGB | ITER_IGNORE_ALPHA)) ==
-+ (ITER_IGNORE_RGB | ITER_IGNORE_ALPHA))
-+ {
-+ iter->get_scanline = _pixman_iter_get_scanline_noop;
-+ }
-+ else
-+ {
-+ iter->get_scanline = dest_get_scanline_16;
-+ }
-+ iter->write_back = dest_write_back_16;
-+ }
-+ else if (iter->flags & ITER_NARROW)
- {
- if ((iter->flags & (ITER_IGNORE_RGB | ITER_IGNORE_ALPHA)) ==
- (ITER_IGNORE_RGB | ITER_IGNORE_ALPHA))
- {
- iter->get_scanline = _pixman_iter_get_scanline_noop;
- }
- else
- {
- iter->get_scanline = dest_get_scanline_narrow;
- }
--
-+
- iter->write_back = dest_write_back_narrow;
- }
- else
- {
- iter->get_scanline = dest_get_scanline_wide;
- iter->write_back = dest_write_back_wide;
- }
- }
-diff --git a/gfx/cairo/libpixman/src/pixman-combine16.c b/gfx/cairo/libpixman/src/pixman-combine16.c
-new file mode 100644
---- /dev/null
-+++ b/gfx/cairo/libpixman/src/pixman-combine16.c
-@@ -0,0 +1,124 @@
-+#ifdef HAVE_CONFIG_H
-+#include <config.h>
-+#endif
-+
-+#include <math.h>
-+#include <string.h>
-+
-+#include "pixman-private.h"
-+
-+#include "pixman-combine32.h"
-+
-+static force_inline uint32_t
-+combine_mask (const uint32_t src, const uint32_t mask)
-+{
-+ uint32_t s, m;
-+
-+ m = mask >> A_SHIFT;
-+
-+ if (!m)
-+ return 0;
-+ s = src;
-+
-+ UN8x4_MUL_UN8 (s, m);
-+
-+ return s;
-+}
-+
-+static inline uint32_t convert_0565_to_8888(uint16_t color)
-+{
-+ return CONVERT_0565_TO_8888(color);
-+}
-+
-+static inline uint16_t convert_8888_to_0565(uint32_t color)
-+{
-+ return CONVERT_8888_TO_0565(color);
-+}
-+
-+static void
-+combine_src_u (pixman_implementation_t *imp,
-+ pixman_op_t op,
-+ uint32_t * dest,
-+ const uint32_t * src,
-+ const uint32_t * mask,
-+ int width)
-+{
-+ int i;
-+
-+ if (!mask)
-+ memcpy (dest, src, width * sizeof (uint16_t));
-+ else
-+ {
-+ uint16_t *d = (uint16_t*)dest;
-+ uint16_t *src16 = (uint16_t*)src;
-+ for (i = 0; i < width; ++i)
-+ {
-+ if ((*mask & 0xff000000) == 0xff000000) {
-+ // it's likely worth special casing
-+ // fully opaque because it avoids
-+ // the cost of conversion as well the multiplication
-+ *(d + i) = *src16;
-+ } else {
-+ // the mask is still 32bits
-+ uint32_t s = combine_mask (convert_0565_to_8888(*src16), *mask);
-+ *(d + i) = convert_8888_to_0565(s);
-+ }
-+ mask++;
-+ src16++;
-+ }
-+ }
-+
-+}
-+
-+static void
-+combine_over_u (pixman_implementation_t *imp,
-+ pixman_op_t op,
-+ uint32_t * dest,
-+ const uint32_t * src,
-+ const uint32_t * mask,
-+ int width)
-+{
-+ int i;
-+
-+ if (!mask)
-+ memcpy (dest, src, width * sizeof (uint16_t));
-+ else
-+ {
-+ uint16_t *d = (uint16_t*)dest;
-+ uint16_t *src16 = (uint16_t*)src;
-+ for (i = 0; i < width; ++i)
-+ {
-+ if ((*mask & 0xff000000) == 0xff000000) {
-+ // it's likely worth special casing
-+ // fully opaque because it avoids
-+ // the cost of conversion as well the multiplication
-+ *(d + i) = *src16;
-+ } else if ((*mask & 0xff000000) == 0x00000000) {
-+ // keep the dest the same
-+ } else {
-+ // the mask is still 32bits
-+ uint32_t s = combine_mask (convert_0565_to_8888(*src16), *mask);
-+ uint32_t ia = ALPHA_8 (~s);
-+ uint32_t d32 = convert_0565_to_8888(*(d + i));
-+ UN8x4_MUL_UN8_ADD_UN8x4 (d32, ia, s);
-+ *(d + i) = convert_8888_to_0565(d32);
-+ }
-+ mask++;
-+ src16++;
-+ }
-+ }
-+
-+}
-+
-+
-+void
-+_pixman_setup_combiner_functions_16 (pixman_implementation_t *imp)
-+{
-+ int i;
-+ for (i = 0; i < PIXMAN_N_OPERATORS; i++) {
-+ imp->combine_16[i] = NULL;
-+ }
-+ imp->combine_16[PIXMAN_OP_SRC] = combine_src_u;
-+ imp->combine_16[PIXMAN_OP_OVER] = combine_over_u;
-+}
-+
-diff --git a/gfx/cairo/libpixman/src/pixman-general.c b/gfx/cairo/libpixman/src/pixman-general.c
---- a/gfx/cairo/libpixman/src/pixman-general.c
-+++ b/gfx/cairo/libpixman/src/pixman-general.c
-@@ -106,46 +106,61 @@ general_composite_rect (pixman_implemen
- 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;
-+ 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))
-@@ -164,20 +179,20 @@ general_composite_rect (pixman_implemen
-
- _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);
-+ dest_buffer, narrow | op_flags[op].dst | rgb16);
-
- compose = _pixman_implementation_lookup_combiner (
-- imp->toplevel, op, component_alpha, narrow);
-+ imp->toplevel, op, component_alpha, narrow, !!rgb16);
-
- if (!compose)
- return;
-
- for (i = 0; i < height; ++i)
- {
- uint32_t *s, *m, *d;
-
-@@ -234,16 +249,17 @@ general_fill (pixman_implementation_t *i
- return FALSE;
- }
-
- pixman_implementation_t *
- _pixman_implementation_create_general (void)
- {
- pixman_implementation_t *imp = _pixman_implementation_create (NULL, general_fast_path);
-
-+ _pixman_setup_combiner_functions_16 (imp);
- _pixman_setup_combiner_functions_32 (imp);
- _pixman_setup_combiner_functions_64 (imp);
-
- imp->blt = general_blt;
- imp->fill = general_fill;
- imp->src_iter_init = general_src_iter_init;
- imp->dest_iter_init = general_dest_iter_init;
-
-diff --git a/gfx/cairo/libpixman/src/pixman-image.c b/gfx/cairo/libpixman/src/pixman-image.c
---- a/gfx/cairo/libpixman/src/pixman-image.c
-+++ b/gfx/cairo/libpixman/src/pixman-image.c
-@@ -451,16 +451,20 @@ compute_image_info (pixman_image_t *imag
- flags |= FAST_PATH_IS_OPAQUE;
- }
-
- 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_NARROW_FORMAT;
-+
-+ if (image->bits.format == PIXMAN_r5g6b5)
-+ flags |= FAST_PATH_16_FORMAT;
-+
- break;
-
- case RADIAL:
- code = PIXMAN_unknown;
-
- /*
- * As explained in pixman-radial-gradient.c, every point of
- * the plane has a valid associated radius (and thus will be
-diff --git a/gfx/cairo/libpixman/src/pixman-implementation.c b/gfx/cairo/libpixman/src/pixman-implementation.c
---- a/gfx/cairo/libpixman/src/pixman-implementation.c
-+++ b/gfx/cairo/libpixman/src/pixman-implementation.c
-@@ -101,45 +101,51 @@ pixman_implementation_t *
- imp->fill = delegate_fill;
- imp->src_iter_init = delegate_src_iter_init;
- imp->dest_iter_init = delegate_dest_iter_init;
-
- imp->fast_paths = fast_paths;
-
- for (i = 0; i < PIXMAN_N_OPERATORS; ++i)
- {
-+ imp->combine_16[i] = NULL;
- imp->combine_32[i] = NULL;
- imp->combine_64[i] = NULL;
- imp->combine_32_ca[i] = NULL;
- imp->combine_64_ca[i] = NULL;
- }
-
- return imp;
- }
-
- pixman_combine_32_func_t
- _pixman_implementation_lookup_combiner (pixman_implementation_t *imp,
- pixman_op_t op,
- pixman_bool_t component_alpha,
-- pixman_bool_t narrow)
-+ pixman_bool_t narrow,
-+ pixman_bool_t rgb16)
- {
- pixman_combine_32_func_t f;
-
- do
- {
- pixman_combine_32_func_t (*combiners[]) =
- {
- (pixman_combine_32_func_t *)imp->combine_64,
- (pixman_combine_32_func_t *)imp->combine_64_ca,
- imp->combine_32,
- imp->combine_32_ca,
-+ (pixman_combine_32_func_t *)imp->combine_16,
-+ NULL,
- };
--
-- f = combiners[component_alpha | (narrow << 1)][op];
--
-+ if (rgb16) {
-+ f = combiners[4][op];
-+ } else {
-+ f = combiners[component_alpha + (narrow << 1)][op];
-+ }
- imp = imp->delegate;
- }
- while (!f);
-
- return f;
- }
-
- pixman_bool_t
-diff --git a/gfx/cairo/libpixman/src/pixman-linear-gradient.c b/gfx/cairo/libpixman/src/pixman-linear-gradient.c
---- a/gfx/cairo/libpixman/src/pixman-linear-gradient.c
-+++ b/gfx/cairo/libpixman/src/pixman-linear-gradient.c
-@@ -217,42 +217,185 @@ linear_get_scanline_narrow (pixman_iter_
- }
- }
-
- iter->y++;
-
- return iter->buffer;
- }
-
-+static uint16_t convert_8888_to_0565(uint32_t color)
-+{
-+ return CONVERT_8888_TO_0565(color);
-+}
-+
-+static uint32_t *
-+linear_get_scanline_16 (pixman_iter_t *iter,
-+ const uint32_t *mask)
-+{
-+ pixman_image_t *image = iter->image;
-+ int x = iter->x;
-+ int y = iter->y;
-+ int width = iter->width;
-+ uint16_t * buffer = (uint16_t*)iter->buffer;
-+
-+ pixman_vector_t v, unit;
-+ pixman_fixed_32_32_t l;
-+ pixman_fixed_48_16_t dx, dy;
-+ gradient_t *gradient = (gradient_t *)image;
-+ linear_gradient_t *linear = (linear_gradient_t *)image;
-+ uint16_t *end = buffer + width;
-+ pixman_gradient_walker_t walker;
-+
-+ _pixman_gradient_walker_init (&walker, gradient, image->common.repeat);
-+
-+ /* reference point is the center of the pixel */
-+ v.vector[0] = pixman_int_to_fixed (x) + pixman_fixed_1 / 2;
-+ v.vector[1] = pixman_int_to_fixed (y) + pixman_fixed_1 / 2;
-+ v.vector[2] = pixman_fixed_1;
-+
-+ if (image->common.transform)
-+ {
-+ if (!pixman_transform_point_3d (image->common.transform, &v))
-+ return iter->buffer;
-+
-+ unit.vector[0] = image->common.transform->matrix[0][0];
-+ unit.vector[1] = image->common.transform->matrix[1][0];
-+ unit.vector[2] = image->common.transform->matrix[2][0];
-+ }
-+ else
-+ {
-+ unit.vector[0] = pixman_fixed_1;
-+ unit.vector[1] = 0;
-+ unit.vector[2] = 0;
-+ }
-+
-+ dx = linear->p2.x - linear->p1.x;
-+ dy = linear->p2.y - linear->p1.y;
-+
-+ l = dx * dx + dy * dy;
-+
-+ if (l == 0 || unit.vector[2] == 0)
-+ {
-+ /* affine transformation only */
-+ pixman_fixed_32_32_t t, next_inc;
-+ double inc;
-+
-+ if (l == 0 || v.vector[2] == 0)
-+ {
-+ t = 0;
-+ inc = 0;
-+ }
-+ else
-+ {
-+ double invden, v2;
-+
-+ invden = pixman_fixed_1 * (double) pixman_fixed_1 /
-+ (l * (double) v.vector[2]);
-+ v2 = v.vector[2] * (1. / pixman_fixed_1);
-+ t = ((dx * v.vector[0] + dy * v.vector[1]) -
-+ (dx * linear->p1.x + dy * linear->p1.y) * v2) * invden;
-+ inc = (dx * unit.vector[0] + dy * unit.vector[1]) * invden;
-+ }
-+ next_inc = 0;
-+
-+ if (((pixman_fixed_32_32_t )(inc * width)) == 0)
-+ {
-+ register uint16_t color;
-+
-+ color = convert_8888_to_0565(_pixman_gradient_walker_pixel (&walker, t));
-+ while (buffer < end)
-+ *buffer++ = color;
-+ }
-+ else
-+ {
-+ int i;
-+
-+ i = 0;
-+ while (buffer < end)
-+ {
-+ if (!mask || *mask++)
-+ {
-+ *buffer = convert_8888_to_0565(_pixman_gradient_walker_pixel (&walker,
-+ t + next_inc));
-+ }
-+ i++;
-+ next_inc = inc * i;
-+ buffer++;
-+ }
-+ }
-+ }
-+ else
-+ {
-+ /* projective transformation */
-+ double t;
-+
-+ t = 0;
-+
-+ while (buffer < end)
-+ {
-+ if (!mask || *mask++)
-+ {
-+ if (v.vector[2] != 0)
-+ {
-+ double invden, v2;
-+
-+ invden = pixman_fixed_1 * (double) pixman_fixed_1 /
-+ (l * (double) v.vector[2]);
-+ v2 = v.vector[2] * (1. / pixman_fixed_1);
-+ t = ((dx * v.vector[0] + dy * v.vector[1]) -
-+ (dx * linear->p1.x + dy * linear->p1.y) * v2) * invden;
-+ }
-+
-+ *buffer = convert_8888_to_0565(_pixman_gradient_walker_pixel (&walker, t));
-+ }
-+
-+ ++buffer;
-+
-+ v.vector[0] += unit.vector[0];
-+ v.vector[1] += unit.vector[1];
-+ v.vector[2] += unit.vector[2];
-+ }
-+ }
-+
-+ iter->y++;
-+
-+ return iter->buffer;
-+}
-+
- static uint32_t *
- linear_get_scanline_wide (pixman_iter_t *iter, const uint32_t *mask)
- {
- uint32_t *buffer = linear_get_scanline_narrow (iter, NULL);
-
- pixman_expand ((uint64_t *)buffer, buffer, PIXMAN_a8r8g8b8, iter->width);
-
- return buffer;
- }
-
- void
- _pixman_linear_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter)
- {
- if (linear_gradient_is_horizontal (
- iter->image, iter->x, iter->y, iter->width, iter->height))
- {
-- if (iter->flags & ITER_NARROW)
-+ if (iter->flags & ITER_16)
-+ linear_get_scanline_16 (iter, NULL);
-+ else if (iter->flags & ITER_NARROW)
- linear_get_scanline_narrow (iter, NULL);
- else
- linear_get_scanline_wide (iter, NULL);
-
- iter->get_scanline = _pixman_iter_get_scanline_noop;
- }
- else
- {
-- if (iter->flags & ITER_NARROW)
-+ if (iter->flags & ITER_16)
-+ iter->get_scanline = linear_get_scanline_16;
-+ else if (iter->flags & ITER_NARROW)
- iter->get_scanline = linear_get_scanline_narrow;
- else
- iter->get_scanline = linear_get_scanline_wide;
- }
- }
-
- PIXMAN_EXPORT pixman_image_t *
- pixman_image_create_linear_gradient (pixman_point_fixed_t * p1,
-diff --git a/gfx/cairo/libpixman/src/pixman-private.h b/gfx/cairo/libpixman/src/pixman-private.h
---- a/gfx/cairo/libpixman/src/pixman-private.h
-+++ b/gfx/cairo/libpixman/src/pixman-private.h
-@@ -152,24 +152,28 @@ struct bits_image
- int height;
- uint32_t * bits;
- uint32_t * free_me;
- int rowstride; /* in number of uint32_t's */
-
- fetch_scanline_t get_scanline_32;
- fetch_scanline_t get_scanline_64;
-
-+ fetch_scanline_t fetch_scanline_16;
-+
- fetch_scanline_t fetch_scanline_32;
- fetch_pixel_32_t fetch_pixel_32;
- store_scanline_t store_scanline_32;
-
- fetch_scanline_t fetch_scanline_64;
- fetch_pixel_64_t fetch_pixel_64;
- store_scanline_t store_scanline_64;
-
-+ store_scanline_t store_scanline_16;
-+
- /* Used for indirect access to the bits */
- pixman_read_memory_func_t read_func;
- pixman_write_memory_func_t write_func;
- };
-
- union pixman_image
- {
- image_type_t type;
-@@ -202,17 +206,24 @@ typedef enum
- * destination.
- *
- * When he destination is xRGB, this is useful knowledge, because then
- * we can treat it as if it were ARGB, which means in some cases we can
- * avoid copying it to a temporary buffer.
- */
- ITER_LOCALIZED_ALPHA = (1 << 1),
- ITER_IGNORE_ALPHA = (1 << 2),
-- ITER_IGNORE_RGB = (1 << 3)
-+ ITER_IGNORE_RGB = (1 << 3),
-+
-+ /* With the addition of ITER_16 we now have two flags that to represent
-+ * 3 pipelines. This means that there can be an invalid state when
-+ * both ITER_NARROW and ITER_16 are set. In this case
-+ * ITER_16 overrides NARROW and we should use the 16 bit pipeline.
-+ * Note: ITER_16 still has a 32 bit mask, which is a bit weird. */
-+ ITER_16 = (1 << 4)
- } iter_flags_t;
-
- struct pixman_iter_t
- {
- /* These are initialized by _pixman_implementation_{src,dest}_init */
- pixman_image_t * image;
- uint32_t * buffer;
- int x, y;
-@@ -429,16 +440,17 @@ typedef pixman_bool_t (*pixman_fill_func
- int x,
- int y,
- int width,
- int height,
- uint32_t xor);
- typedef void (*pixman_iter_init_func_t) (pixman_implementation_t *imp,
- pixman_iter_t *iter);
-
-+void _pixman_setup_combiner_functions_16 (pixman_implementation_t *imp);
- void _pixman_setup_combiner_functions_32 (pixman_implementation_t *imp);
- void _pixman_setup_combiner_functions_64 (pixman_implementation_t *imp);
-
- typedef struct
- {
- pixman_op_t op;
- pixman_format_code_t src_format;
- uint32_t src_flags;
-@@ -459,32 +471,34 @@ struct pixman_implementation_t
- pixman_fill_func_t fill;
- pixman_iter_init_func_t src_iter_init;
- pixman_iter_init_func_t dest_iter_init;
-
- pixman_combine_32_func_t combine_32[PIXMAN_N_OPERATORS];
- pixman_combine_32_func_t combine_32_ca[PIXMAN_N_OPERATORS];
- pixman_combine_64_func_t combine_64[PIXMAN_N_OPERATORS];
- pixman_combine_64_func_t combine_64_ca[PIXMAN_N_OPERATORS];
-+ pixman_combine_64_func_t combine_16[PIXMAN_N_OPERATORS];
- };
-
- uint32_t
- _pixman_image_get_solid (pixman_implementation_t *imp,
- pixman_image_t * image,
- pixman_format_code_t format);
-
- pixman_implementation_t *
- _pixman_implementation_create (pixman_implementation_t *delegate,
- const pixman_fast_path_t *fast_paths);
-
- pixman_combine_32_func_t
- _pixman_implementation_lookup_combiner (pixman_implementation_t *imp,
- pixman_op_t op,
- pixman_bool_t component_alpha,
-- pixman_bool_t wide);
-+ pixman_bool_t wide,
-+ pixman_bool_t rgb16);
-
- pixman_bool_t
- _pixman_implementation_blt (pixman_implementation_t *imp,
- uint32_t * src_bits,
- uint32_t * dst_bits,
- int src_stride,
- int dst_stride,
- int src_bpp,
-@@ -613,16 +627,17 @@ uint32_t *
- #define FAST_PATH_Y_UNIT_ZERO (1 << 18)
- #define FAST_PATH_BILINEAR_FILTER (1 << 19)
- #define FAST_PATH_ROTATE_90_TRANSFORM (1 << 20)
- #define FAST_PATH_ROTATE_180_TRANSFORM (1 << 21)
- #define FAST_PATH_ROTATE_270_TRANSFORM (1 << 22)
- #define FAST_PATH_SAMPLES_COVER_CLIP_NEAREST (1 << 23)
- #define FAST_PATH_SAMPLES_COVER_CLIP_BILINEAR (1 << 24)
- #define FAST_PATH_BITS_IMAGE (1 << 25)
-+#define FAST_PATH_16_FORMAT (1 << 26)
-
- #define FAST_PATH_PAD_REPEAT \
- (FAST_PATH_NO_NONE_REPEAT | \
- FAST_PATH_NO_NORMAL_REPEAT | \
- FAST_PATH_NO_REFLECT_REPEAT)
-
- #define FAST_PATH_NORMAL_REPEAT \
- (FAST_PATH_NO_NONE_REPEAT | \
-diff --git a/gfx/cairo/libpixman/src/pixman-radial-gradient.c b/gfx/cairo/libpixman/src/pixman-radial-gradient.c
---- a/gfx/cairo/libpixman/src/pixman-radial-gradient.c
-+++ b/gfx/cairo/libpixman/src/pixman-radial-gradient.c
-@@ -395,35 +395,289 @@ radial_get_scanline_narrow (pixman_iter_
- v.vector[2] += unit.vector[2];
- }
- }
-
- iter->y++;
- return iter->buffer;
- }
-
-+static uint16_t convert_8888_to_0565(uint32_t color)
-+{
-+ return CONVERT_8888_TO_0565(color);
-+}
-+
-+static uint32_t *
-+radial_get_scanline_16 (pixman_iter_t *iter, const uint32_t *mask)
-+{
-+ /*
-+ * Implementation of radial gradients following the PDF specification.
-+ * See section 8.7.4.5.4 Type 3 (Radial) Shadings of the PDF Reference
-+ * Manual (PDF 32000-1:2008 at the time of this writing).
-+ *
-+ * In the radial gradient problem we are given two circles (c₁,r₁) and
-+ * (c₂,r₂) that define the gradient itself.
-+ *
-+ * Mathematically the gradient can be defined as the family of circles
-+ *
-+ * ((1-t)·c₁ + t·(c₂), (1-t)·r₁ + t·r₂)
-+ *
-+ * excluding those circles whose radius would be < 0. When a point
-+ * belongs to more than one circle, the one with a bigger t is the only
-+ * one that contributes to its color. When a point does not belong
-+ * to any of the circles, it is transparent black, i.e. RGBA (0, 0, 0, 0).
-+ * Further limitations on the range of values for t are imposed when
-+ * the gradient is not repeated, namely t must belong to [0,1].
-+ *
-+ * The graphical result is the same as drawing the valid (radius > 0)
-+ * circles with increasing t in [-inf, +inf] (or in [0,1] if the gradient
-+ * is not repeated) using SOURCE operator composition.
-+ *
-+ * It looks like a cone pointing towards the viewer if the ending circle
-+ * is smaller than the starting one, a cone pointing inside the page if
-+ * the starting circle is the smaller one and like a cylinder if they
-+ * have the same radius.
-+ *
-+ * What we actually do is, given the point whose color we are interested
-+ * in, compute the t values for that point, solving for t in:
-+ *
-+ * length((1-t)·c₁ + t·(c₂) - p) = (1-t)·r₁ + t·r₂
-+ *
-+ * Let's rewrite it in a simpler way, by defining some auxiliary
-+ * variables:
-+ *
-+ * cd = c₂ - c₁
-+ * pd = p - c₁
-+ * dr = r₂ - r₁
-+ * length(t·cd - pd) = r₁ + t·dr
-+ *
-+ * which actually means
-+ *
-+ * hypot(t·cdx - pdx, t·cdy - pdy) = r₁ + t·dr
-+ *
-+ * or
-+ *
-+ * ⎷((t·cdx - pdx)² + (t·cdy - pdy)²) = r₁ + t·dr.
-+ *
-+ * If we impose (as stated earlier) that r₁ + t·dr >= 0, it becomes:
-+ *
-+ * (t·cdx - pdx)² + (t·cdy - pdy)² = (r₁ + t·dr)²
-+ *
-+ * where we can actually expand the squares and solve for t:
-+ *
-+ * t²cdx² - 2t·cdx·pdx + pdx² + t²cdy² - 2t·cdy·pdy + pdy² =
-+ * = r₁² + 2·r₁·t·dr + t²·dr²
-+ *
-+ * (cdx² + cdy² - dr²)t² - 2(cdx·pdx + cdy·pdy + r₁·dr)t +
-+ * (pdx² + pdy² - r₁²) = 0
-+ *
-+ * A = cdx² + cdy² - dr²
-+ * B = pdx·cdx + pdy·cdy + r₁·dr
-+ * C = pdx² + pdy² - r₁²
-+ * At² - 2Bt + C = 0
-+ *
-+ * The solutions (unless the equation degenerates because of A = 0) are:
-+ *
-+ * t = (B ± ⎷(B² - A·C)) / A
-+ *
-+ * The solution we are going to prefer is the bigger one, unless the
-+ * radius associated to it is negative (or it falls outside the valid t
-+ * range).
-+ *
-+ * Additional observations (useful for optimizations):
-+ * A does not depend on p
-+ *
-+ * A < 0 <=> one of the two circles completely contains the other one
-+ * <=> for every p, the radiuses associated with the two t solutions
-+ * have opposite sign
-+ */
-+ pixman_image_t *image = iter->image;
-+ int x = iter->x;
-+ int y = iter->y;
-+ int width = iter->width;
-+ uint16_t *buffer = iter->buffer;
-+
-+ gradient_t *gradient = (gradient_t *)image;
-+ radial_gradient_t *radial = (radial_gradient_t *)image;
-+ uint16_t *end = buffer + width;
-+ pixman_gradient_walker_t walker;
-+ pixman_vector_t v, unit;
-+
-+ /* reference point is the center of the pixel */
-+ v.vector[0] = pixman_int_to_fixed (x) + pixman_fixed_1 / 2;
-+ v.vector[1] = pixman_int_to_fixed (y) + pixman_fixed_1 / 2;
-+ v.vector[2] = pixman_fixed_1;
-+
-+ _pixman_gradient_walker_init (&walker, gradient, image->common.repeat);
-+
-+ if (image->common.transform)
-+ {
-+ if (!pixman_transform_point_3d (image->common.transform, &v))
-+ return iter->buffer;
-+
-+ unit.vector[0] = image->common.transform->matrix[0][0];
-+ unit.vector[1] = image->common.transform->matrix[1][0];
-+ unit.vector[2] = image->common.transform->matrix[2][0];
-+ }
-+ else
-+ {
-+ unit.vector[0] = pixman_fixed_1;
-+ unit.vector[1] = 0;
-+ unit.vector[2] = 0;
-+ }
-+
-+ if (unit.vector[2] == 0 && v.vector[2] == pixman_fixed_1)
-+ {
-+ /*
-+ * Given:
-+ *
-+ * t = (B ± ⎷(B² - A·C)) / A
-+ *
-+ * where
-+ *
-+ * A = cdx² + cdy² - dr²
-+ * B = pdx·cdx + pdy·cdy + r₁·dr
-+ * C = pdx² + pdy² - r₁²
-+ * det = B² - A·C
-+ *
-+ * Since we have an affine transformation, we know that (pdx, pdy)
-+ * increase linearly with each pixel,
-+ *
-+ * pdx = pdx₀ + n·ux,
-+ * pdy = pdy₀ + n·uy,
-+ *
-+ * we can then express B, C and det through multiple differentiation.
-+ */
-+ pixman_fixed_32_32_t b, db, c, dc, ddc;
-+
-+ /* warning: this computation may overflow */
-+ v.vector[0] -= radial->c1.x;
-+ v.vector[1] -= radial->c1.y;
-+
-+ /*
-+ * B and C are computed and updated exactly.
-+ * If fdot was used instead of dot, in the worst case it would
-+ * lose 11 bits of precision in each of the multiplication and
-+ * summing up would zero out all the bit that were preserved,
-+ * thus making the result 0 instead of the correct one.
-+ * This would mean a worst case of unbound relative error or
-+ * about 2^10 absolute error
-+ */
-+ b = dot (v.vector[0], v.vector[1], radial->c1.radius,
-+ radial->delta.x, radial->delta.y, radial->delta.radius);
-+ db = dot (unit.vector[0], unit.vector[1], 0,
-+ radial->delta.x, radial->delta.y, 0);
-+
-+ c = dot (v.vector[0], v.vector[1],
-+ -((pixman_fixed_48_16_t) radial->c1.radius),
-+ v.vector[0], v.vector[1], radial->c1.radius);
-+ dc = dot (2 * (pixman_fixed_48_16_t) v.vector[0] + unit.vector[0],
-+ 2 * (pixman_fixed_48_16_t) v.vector[1] + unit.vector[1],
-+ 0,
-+ unit.vector[0], unit.vector[1], 0);
-+ ddc = 2 * dot (unit.vector[0], unit.vector[1], 0,
-+ unit.vector[0], unit.vector[1], 0);
-+
-+ while (buffer < end)
-+ {
-+ if (!mask || *mask++)
-+ {
-+ *buffer = convert_8888_to_0565(
-+ radial_compute_color (radial->a, b, c,
-+ radial->inva,
-+ radial->delta.radius,
-+ radial->mindr,
-+ &walker,
-+ image->common.repeat));
-+ }
-+
-+ b += db;
-+ c += dc;
-+ dc += ddc;
-+ ++buffer;
-+ }
-+ }
-+ else
-+ {
-+ /* projective */
-+ /* Warning:
-+ * error propagation guarantees are much looser than in the affine case
-+ */
-+ while (buffer < end)
-+ {
-+ if (!mask || *mask++)
-+ {
-+ if (v.vector[2] != 0)
-+ {
-+ double pdx, pdy, invv2, b, c;
-+
-+ invv2 = 1. * pixman_fixed_1 / v.vector[2];
-+
-+ pdx = v.vector[0] * invv2 - radial->c1.x;
-+ /* / pixman_fixed_1 */
-+
-+ pdy = v.vector[1] * invv2 - radial->c1.y;
-+ /* / pixman_fixed_1 */
-+
-+ b = fdot (pdx, pdy, radial->c1.radius,
-+ radial->delta.x, radial->delta.y,
-+ radial->delta.radius);
-+ /* / pixman_fixed_1 / pixman_fixed_1 */
-+
-+ c = fdot (pdx, pdy, -radial->c1.radius,
-+ pdx, pdy, radial->c1.radius);
-+ /* / pixman_fixed_1 / pixman_fixed_1 */
-+
-+ *buffer = convert_8888_to_0565 (
-+ radial_compute_color (radial->a, b, c,
-+ radial->inva,
-+ radial->delta.radius,
-+ radial->mindr,
-+ &walker,
-+ image->common.repeat));
-+ }
-+ else
-+ {
-+ *buffer = 0;
-+ }
-+ }
-+
-+ ++buffer;
-+
-+ v.vector[0] += unit.vector[0];
-+ v.vector[1] += unit.vector[1];
-+ v.vector[2] += unit.vector[2];
-+ }
-+ }
-+
-+ iter->y++;
-+ return iter->buffer;
-+}
- static uint32_t *
- radial_get_scanline_wide (pixman_iter_t *iter, const uint32_t *mask)
- {
- uint32_t *buffer = radial_get_scanline_narrow (iter, NULL);
-
- pixman_expand ((uint64_t *)buffer, buffer, PIXMAN_a8r8g8b8, iter->width);
-
- return buffer;
- }
-
- void
- _pixman_radial_gradient_iter_init (pixman_image_t *image, pixman_iter_t *iter)
- {
-- if (iter->flags & ITER_NARROW)
-+ if (iter->flags & ITER_16)
-+ iter->get_scanline = radial_get_scanline_16;
-+ else if (iter->flags & ITER_NARROW)
- iter->get_scanline = radial_get_scanline_narrow;
- else
- iter->get_scanline = radial_get_scanline_wide;
- }
-
-+
- PIXMAN_EXPORT pixman_image_t *
- pixman_image_create_radial_gradient (pixman_point_fixed_t * inner,
- pixman_point_fixed_t * outer,
- pixman_fixed_t inner_radius,
- pixman_fixed_t outer_radius,
- const pixman_gradient_stop_t *stops,
- int n_stops)
- {
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-10 00:21:20 +0000