aboutsummaryrefslogtreecommitdiff
path: root/pixman/pixman/pixman-general.c
diff options
context:
space:
mode:
Diffstat (limited to 'pixman/pixman/pixman-general.c')
-rw-r--r--pixman/pixman/pixman-general.c324
1 files changed, 324 insertions, 0 deletions
diff --git a/pixman/pixman/pixman-general.c b/pixman/pixman/pixman-general.c
new file mode 100644
index 000000000..6414b01a5
--- /dev/null
+++ b/pixman/pixman/pixman-general.c
@@ -0,0 +1,324 @@
+/*
+ * Copyright © 2009 Red Hat, Inc.
+ * Copyright © 2000 SuSE, Inc.
+ * Copyright © 2007 Red Hat, Inc.
+ * Copyright © 2000 Keith Packard, member of The XFree86 Project, Inc.
+ * 2005 Lars Knoll & Zack Rusin, Trolltech
+ * 2008 Aaron Plattner, NVIDIA Corporation
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Red Hat not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. Red Hat makes no representations about the
+ * suitability of this software for any purpose. It is provided "as is"
+ * without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
+ * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+ * SOFTWARE.
+ */
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "pixman-private.h"
+#include "pixman-combine32.h"
+#include "pixman-private.h"
+
+#define SCANLINE_BUFFER_LENGTH 8192
+
+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_pict_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 (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)
+{
+ _pixman_walk_composite_region (imp, op, src, mask, dest, src_x, src_y,
+ mask_x, mask_y, dest_x, dest_y,
+ width, height,
+ general_composite_rect);
+}
+
+static pixman_bool_t
+general_blt (pixman_implementation_t *imp,
+ uint32_t * src_bits,
+ uint32_t * dst_bits,
+ int src_stride,
+ int dst_stride,
+ int src_bpp,
+ int dst_bpp,
+ int src_x,
+ int src_y,
+ int dst_x,
+ int dst_y,
+ int width,
+ int height)
+{
+ /* We can't blit unless we have sse2 or mmx */
+
+ return FALSE;
+}
+
+static pixman_bool_t
+general_fill (pixman_implementation_t *imp,
+ uint32_t * bits,
+ int stride,
+ int bpp,
+ int x,
+ int y,
+ int width,
+ int height,
+ uint32_t xor)
+{
+ return FALSE;
+}
+
+pixman_implementation_t *
+_pixman_implementation_create_general (void)
+{
+ pixman_implementation_t *imp = _pixman_implementation_create (NULL);
+
+ _pixman_setup_combiner_functions_32 (imp);
+ _pixman_setup_combiner_functions_64 (imp);
+
+ imp->composite = general_composite;
+ imp->blt = general_blt;
+ imp->fill = general_fill;
+
+ return imp;
+}
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-08 22:09:32 +0000