bitmap.c File Reference

Framebuffer implementation of generic bitmap interface. More...

#include <inttypes.h>
#include <sys/types.h>
#include <stdbool.h>
#include <assert.h>
#include <libnsfb.h>
#include <libnsfb_plot.h>
#include "utils/log.h"
#include "utils/utils.h"
#include "netsurf/bitmap.h"
#include "netsurf/plotters.h"
#include "netsurf/content.h"
#include "framebuffer/gui.h"
#include "framebuffer/fbtk.h"
#include "framebuffer/framebuffer.h"
#include "framebuffer/bitmap.h"

Include dependency graph for bitmap.c:

Go to the source code of this file.

Functions
static void *	bitmap_create (int width, int height, enum gui_bitmap_flags flags)
	Create a bitmap. More...
static unsigned char *	bitmap_get_buffer (void *bitmap)
	Return a pointer to the pixel data in a bitmap. More...
static size_t	bitmap_get_rowstride (void *bitmap)
	Find the width of a pixel row in bytes. More...
static void	bitmap_destroy (void *bitmap)
	Free a bitmap. More...
static void	bitmap_modified (void *bitmap)
	The bitmap image has changed, so flush any persistant cache. More...
static void	bitmap_set_opaque (void *bitmap, bool opaque)
	Sets wether a bitmap should be plotted opaque. More...
bool	framebuffer_bitmap_get_opaque (void *bitmap)
	Gets weather a bitmap should be plotted opaque. More...
static int	bitmap_get_width (void *bitmap)
static int	bitmap_get_height (void *bitmap)
static nserror	bitmap_render (struct bitmap *bitmap, struct hlcache_handle *content)
	Render content into a bitmap. More...

Variables
static struct gui_bitmap_table	bitmap_table
struct gui_bitmap_table *	framebuffer_bitmap_table = &bitmap_table

Detailed Description

Framebuffer implementation of generic bitmap interface.

Definition in file bitmap.c.

Function Documentation

bitmap_create()

static void * bitmap_create ( int  width, int  height, enum gui_bitmap_flags  flags  )

static

Create a bitmap.

Parameters

width	width of image in pixels
height	width of image in pixels
state	a flag word indicating the initial state

Returns

an opaque struct bitmap, or NULL on memory exhaustion

Definition at line 50 of file bitmap.c.

References BITMAP_OPAQUE, height, and width.

bitmap_destroy()

static void bitmap_destroy ( void *  bitmap )

static

Free a bitmap.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Definition at line 120 of file bitmap.c.

References bitmap().

Here is the call graph for this function:

bitmap_get_buffer()

static unsigned char * bitmap_get_buffer ( void *  bitmap )

static

Return a pointer to the pixel data in a bitmap.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Returns

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().

Definition at line 83 of file bitmap.c.

References bitmap().

Here is the call graph for this function:

bitmap_get_height()

static int bitmap_get_height ( void *  bitmap )

static

Definition at line 190 of file bitmap.c.

References bitmap(), and height.

Here is the call graph for this function:

bitmap_get_rowstride()

static size_t bitmap_get_rowstride ( void *  bitmap )

static

Find the width of a pixel row in bytes.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Returns

width of a pixel row in the bitmap

Definition at line 102 of file bitmap.c.

References bitmap().

Here is the call graph for this function:

bitmap_get_width()

static int bitmap_get_width ( void *  bitmap )

static

Definition at line 178 of file bitmap.c.

References bitmap(), and width.

Here is the call graph for this function:

bitmap_modified()

static void bitmap_modified ( void *  bitmap )

static

The bitmap image has changed, so flush any persistant cache.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Definition at line 135 of file bitmap.c.

bitmap_render()

static nserror bitmap_render ( struct bitmap *  bitmap, struct hlcache_handle *  content  )

static

Render content into a bitmap.

Parameters

bitmap	the bitmap to draw to
content	content structure to render

Returns

true on success and bitmap updated else false

Definition at line 210 of file bitmap.c.

References content_get_width(), content_scaled_redraw(), fb_plotters, framebuffer_set_surface(), height, redraw_context::interactive, max, min, NSERROR_NOMEM, NSERROR_OK, NSLOG, and width.

Here is the call graph for this function:

bitmap_set_opaque()

static void bitmap_set_opaque ( void *  bitmap, bool  opaque  )

static

Sets wether a bitmap should be plotted opaque.

Parameters

bitmap	a bitmap, as returned by bitmap_create()
opaque	whether the bitmap should be plotted opaque

Definition at line 144 of file bitmap.c.

References bitmap().

Here is the call graph for this function:

framebuffer_bitmap_get_opaque()

bool framebuffer_bitmap_get_opaque

(

void *

bitmap

)

Gets weather a bitmap should be plotted opaque.

Parameters

bitmap

a bitmap, as returned by bitmap_create()

Definition at line 163 of file bitmap.c.

References bitmap().

Referenced by framebuffer_plot_bitmap().

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

bitmap_table

struct gui_bitmap_table bitmap_table

static

Initial value:

= {
        .create = bitmap_create,
        .destroy = bitmap_destroy,
        .set_opaque = bitmap_set_opaque,
        .get_opaque = framebuffer_bitmap_get_opaque,
        .get_buffer = bitmap_get_buffer,
        .get_rowstride = bitmap_get_rowstride,
        .get_width = bitmap_get_width,
        .get_height = bitmap_get_height,
        .modified = bitmap_modified,
        .render = bitmap_render,
}

Definition at line 272 of file bitmap.c.

framebuffer_bitmap_table

struct gui_bitmap_table* framebuffer_bitmap_table = &bitmap_table

Definition at line 285 of file bitmap.c.

Referenced by main().