diff options
| -rw-r--r-- | debug/debug_bitmap.c | 113 | ||||
| -rw-r--r-- | riscos/bitmap.c | 155 |
2 files changed, 268 insertions, 0 deletions
diff --git a/debug/debug_bitmap.c b/debug/debug_bitmap.c new file mode 100644 index 000000000..8ac52f3ff --- /dev/null +++ b/debug/debug_bitmap.c @@ -0,0 +1,113 @@ +/*
+ * This file is part of NetSurf, http://netsurf.sourceforge.net/
+ * Licensed under the GNU General Public License,
+ * http://www.opensource.org/licenses/gpl-license
+ * Copyright 2004 James Bursa <bursa@users.sourceforge.net>
+ */
+
+/** \file
+ * Generic bitmap handling (dummy debug implementation).
+ *
+ * This implements the interface given by desktop/bitmap.h using a simple
+ * buffer.
+ */
+
+#include <assert.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include "netsurf/image/bitmap.h"
+
+
+struct bitmap {
+ int width;
+ char pixels[1];
+};
+
+
+/**
+ * Create a bitmap.
+ *
+ * \param width width of image in pixels
+ * \param height width of image in pixels
+ * \return an opaque struct bitmap, or NULL on memory exhaustion
+ */
+
+struct bitmap *bitmap_create(int width, int height)
+{
+ struct bitmap *bitmap;
+ bitmap = calloc(sizeof *bitmap + width * height * 4, 1);
+ if (bitmap)
+ bitmap->width = width;
+ return bitmap;
+}
+
+
+/**
+ * Return a pointer to the pixel data in a bitmap.
+ *
+ * \param bitmap a bitmap, as returned by bitmap_create()
+ * \return pointer to the pixel buffer
+ *
+ * The pixel data is packed as BITMAP_FORMAT, possibly with padding at the end
+ * of rows. The width of a row in bytes is given by bitmap_get_rowstride().
+ */
+
+char *bitmap_get_buffer(struct bitmap *bitmap)
+{
+ assert(bitmap);
+ return bitmap->pixels;
+}
+
+
+/**
+ * Find the width of a pixel row in bytes.
+ *
+ * \param bitmap a bitmap, as returned by bitmap_create()
+ * \return width of a pixel row in the bitmap
+ */
+
+size_t bitmap_get_rowstride(struct bitmap *bitmap)
+{
+ assert(bitmap);
+ return bitmap->width * 4;
+}
+
+
+/**
+ * Free a bitmap.
+ *
+ * \param bitmap a bitmap, as returned by bitmap_create()
+ */
+
+void bitmap_destroy(struct bitmap *bitmap)
+{
+ assert(bitmap);
+ free(bitmap);
+}
+
+
+/**
+ * Render a bitmap.
+ */
+
+bool bitmap_redraw(struct content *c, int x, int y,
+ int width, int height,
+ int clip_x0, int clip_y0, int clip_x1, int clip_y1,
+ float scale, unsigned long background_colour)
+{
+ return true;
+}
+
+
+/**
+ * Save a bitmap in the platform's native format.
+ *
+ * \param bitmap a bitmap, as returned by bitmap_create()
+ * \param path pathname for file
+ * \return true on success, false on error and error reported
+ */
+
+bool bitmap_save(struct bitmap *bitmap, const char *path)
+{
+ return true;
+}
diff --git a/riscos/bitmap.c b/riscos/bitmap.c new file mode 100644 index 000000000..2b705b8d4 --- /dev/null +++ b/riscos/bitmap.c @@ -0,0 +1,155 @@ +/*
+ * This file is part of NetSurf, http://netsurf.sourceforge.net/
+ * Licensed under the GNU General Public License,
+ * http://www.opensource.org/licenses/gpl-license
+ * Copyright 2004 James Bursa <bursa@users.sourceforge.net>
+ */
+
+/** \file
+ * Generic bitmap handling (RISC OS implementation).
+ *
+ * This implements the interface given by desktop/bitmap.h using RISC OS
+ * sprites.
+ */
+
+#include <assert.h>
+#include <stdbool.h>
+#include <string.h>
+#include "oslib/osspriteop.h"
+#include "netsurf/content/content.h"
+#include "netsurf/image/bitmap.h"
+#include "netsurf/riscos/image.h"
+#include "netsurf/utils/log.h"
+#include "netsurf/utils/utils.h"
+
+
+struct bitmap {
+ osspriteop_area sprite_area;
+};
+
+
+/**
+ * Create a bitmap.
+ *
+ * \param width width of image in pixels
+ * \param height width of image in pixels
+ * \return an opaque struct bitmap, or NULL on memory exhaustion
+ */
+
+struct bitmap *bitmap_create(int width, int height)
+{
+ unsigned int area_size;
+ struct bitmap *bitmap;
+ osspriteop_area *sprite_area;
+ osspriteop_header *sprite;
+
+ area_size = 16 + 44 + width * height * 4;
+ bitmap = calloc(area_size, 1);
+ if (!bitmap)
+ return NULL;
+
+ /* area control block */
+ sprite_area = &bitmap->sprite_area;
+ sprite_area->size = area_size;
+ sprite_area->sprite_count = 1;
+ sprite_area->first = 16;
+ sprite_area->used = area_size;
+
+ /* sprite control block */
+ sprite = (osspriteop_header *) (sprite_area + 1);
+ sprite->size = area_size - 16;
+ memset(sprite->name, 0x00, 12);
+ strncpy(sprite->name, "bitmap", 12);
+ sprite->width = width - 1;
+ sprite->height = height - 1;
+ sprite->left_bit = 0;
+ sprite->right_bit = 31;
+ sprite->image = sprite->mask = 44;
+ sprite->mode = (os_mode) 0x301680b5;
+
+ return bitmap;
+}
+
+
+/**
+ * Return a pointer to the pixel data in a bitmap.
+ *
+ * \param bitmap a bitmap, as returned by bitmap_create()
+ * \return pointer to the pixel buffer
+ *
+ * The pixel data is packed as BITMAP_FORMAT, possibly with padding at the end
+ * of rows. The width of a row in bytes is given by bitmap_get_rowstride().
+ */
+
+char *bitmap_get_buffer(struct bitmap *bitmap)
+{
+ assert(bitmap);
+ return ((char *) bitmap) + 16 + 44;
+}
+
+
+/**
+ * Find the width of a pixel row in bytes.
+ *
+ * \param bitmap a bitmap, as returned by bitmap_create()
+ * \return width of a pixel row in the bitmap
+ */
+
+size_t bitmap_get_rowstride(struct bitmap *bitmap)
+{
+ osspriteop_header *sprite;
+ assert(bitmap);
+ sprite = (osspriteop_header *) (&(bitmap->sprite_area) + 1);
+ return (sprite->width + 1) * 4;
+}
+
+
+/**
+ * Free a bitmap.
+ *
+ * \param bitmap a bitmap, as returned by bitmap_create()
+ */
+
+void bitmap_destroy(struct bitmap *bitmap)
+{
+ assert(bitmap);
+ free(bitmap);
+}
+
+
+/**
+ * Render a bitmap.
+ */
+
+bool bitmap_redraw(struct content *c, int x, int y,
+ int width, int height,
+ int clip_x0, int clip_y0, int clip_x1, int clip_y1,
+ float scale, unsigned long background_colour)
+{
+ return image_redraw(&(c->bitmap->sprite_area), x, y, width, height,
+ c->width * 2, c->height * 2, background_colour,
+ false, false, IMAGE_PLOT_TINCT_ALPHA);
+}
+
+
+/**
+ * Save a bitmap in the platform's native format.
+ *
+ * \param bitmap a bitmap, as returned by bitmap_create()
+ * \param path pathname for file
+ * \return true on success, false on error and error reported
+ */
+
+bool bitmap_save(struct bitmap *bitmap, const char *path)
+{
+ os_error *error;
+ error = xosspriteop_save_sprite_file(osspriteop_USER_AREA,
+ &(bitmap->sprite_area), path);
+ if (error) {
+ LOG(("xosspriteop_save_sprite_file: 0x%x: %s",
+ error->errnum, error->errmess));
+ warn_user("SaveError", error->errmess);
+ return false;
+ }
+ return true;
+}
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