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From 4b5b5a2a832cd67f2a0ec231f75a2825b45571fa Mon Sep 17 00:00:00 2001
From: Siarhei Siamashka <siarhei.siamashka@nokia.com>
Date: Mon, 15 Nov 2010 18:26:43 +0200
Subject: [PATCH 04/24] C fast path for a1 fill operation
Can be used as one of the solutions to fix bug
https://bugs.freedesktop.org/show_bug.cgi?id=31604
---
pixman/pixman-fast-path.c | 87 ++++++++++++++++++++++++++++++++++++++++++++-
pixman/pixman.c | 7 +++-
2 files changed, 91 insertions(+), 3 deletions(-)
diff --git a/pixman/pixman-fast-path.c b/pixman/pixman-fast-path.c
index 5d5fa95..37dfbae 100644
--- a/pixman/pixman-fast-path.c
+++ b/pixman/pixman-fast-path.c
@@ -1334,7 +1334,11 @@ fast_composite_solid_fill (pixman_implementation_t *imp,
src = _pixman_image_get_solid (src_image, dst_image->bits.format);
- if (dst_image->bits.format == PIXMAN_a8)
+ if (dst_image->bits.format == PIXMAN_a1)
+ {
+ src = src >> 31;
+ }
+ else if (dst_image->bits.format == PIXMAN_a8)
{
src = src >> 24;
}
@@ -1655,6 +1659,7 @@ static const pixman_fast_path_t c_fast_paths[] =
PIXMAN_STD_FAST_PATH (SRC, solid, null, x8r8g8b8, fast_composite_solid_fill),
PIXMAN_STD_FAST_PATH (SRC, solid, null, a8b8g8r8, fast_composite_solid_fill),
PIXMAN_STD_FAST_PATH (SRC, solid, null, x8b8g8r8, fast_composite_solid_fill),
+ PIXMAN_STD_FAST_PATH (SRC, solid, null, a1, fast_composite_solid_fill),
PIXMAN_STD_FAST_PATH (SRC, solid, null, a8, fast_composite_solid_fill),
PIXMAN_STD_FAST_PATH (SRC, solid, null, r5g6b5, fast_composite_solid_fill),
PIXMAN_STD_FAST_PATH (SRC, x8r8g8b8, null, a8r8g8b8, fast_composite_src_x888_8888),
@@ -1733,6 +1738,82 @@ static const pixman_fast_path_t c_fast_paths[] =
{ PIXMAN_OP_NONE },
};
+#ifdef WORDS_BIGENDIAN
+#define A1_FILL_MASK(n, offs) (((1 << (n)) - 1) << (32 - (offs) - (n)))
+#else
+#define A1_FILL_MASK(n, offs) (((1 << (n)) - 1) << (offs))
+#endif
+
+static force_inline void
+pixman_fill1_line (uint32_t *dst, int offs, int width, int v)
+{
+ if (offs)
+ {
+ int leading_pixels = 32 - offs;
+ if (leading_pixels >= width)
+ {
+ if (v)
+ *dst |= A1_FILL_MASK (width, offs);
+ else
+ *dst &= ~A1_FILL_MASK (width, offs);
+ return;
+ }
+ else
+ {
+ if (v)
+ *dst++ |= A1_FILL_MASK (leading_pixels, offs);
+ else
+ *dst++ &= ~A1_FILL_MASK (leading_pixels, offs);
+ width -= leading_pixels;
+ }
+ }
+ while (width >= 32)
+ {
+ if (v)
+ *dst++ = 0xFFFFFFFF;
+ else
+ *dst++ = 0;
+ width -= 32;
+ }
+ if (width > 0)
+ {
+ if (v)
+ *dst |= A1_FILL_MASK (width, 0);
+ else
+ *dst &= ~A1_FILL_MASK (width, 0);
+ }
+}
+
+static void
+pixman_fill1 (uint32_t *bits,
+ int stride,
+ int x,
+ int y,
+ int width,
+ int height,
+ uint32_t xor)
+{
+ uint32_t *dst = bits + y * stride + (x >> 5);
+ int offs = x & 31;
+
+ if (xor & 1)
+ {
+ while (height--)
+ {
+ pixman_fill1_line (dst, offs, width, 1);
+ dst += stride;
+ }
+ }
+ else
+ {
+ while (height--)
+ {
+ pixman_fill1_line (dst, offs, width, 0);
+ dst += stride;
+ }
+ }
+}
+
static void
pixman_fill8 (uint32_t *bits,
int stride,
@@ -1819,6 +1900,10 @@ fast_path_fill (pixman_implementation_t *imp,
{
switch (bpp)
{
+ case 1:
+ pixman_fill1 (bits, stride, x, y, width, height, xor);
+ break;
+
case 8:
pixman_fill8 (bits, stride, x, y, width, height, xor);
break;
diff --git a/pixman/pixman.c b/pixman/pixman.c
index 045c556..ec565f9 100644
--- a/pixman/pixman.c
+++ b/pixman/pixman.c
@@ -875,7 +875,8 @@ color_to_pixel (pixman_color_t * color,
format == PIXMAN_b8g8r8x8 ||
format == PIXMAN_r5g6b5 ||
format == PIXMAN_b5g6r5 ||
- format == PIXMAN_a8))
+ format == PIXMAN_a8 ||
+ format == PIXMAN_a1))
{
return FALSE;
}
@@ -895,7 +896,9 @@ color_to_pixel (pixman_color_t * color,
((c & 0x000000ff) << 24);
}
- 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)
--
1.6.6.1
|
