static bool
framebuffer_plot_bitmap(int x, int y,
int width, int height,
struct bitmap *bitmap, colour bg,
bitmap_flags_t flags)
{
int xf,yf;
nsfb_bbox_t loc;
nsfb_bbox_t clipbox;
bool repeat_x = (flags & BITMAPF_REPEAT_X);
bool repeat_y = (flags & BITMAPF_REPEAT_Y);
int bmwidth;
int bmheight;
unsigned char *bmptr;
nsfb_t *bm = (nsfb_t *)bitmap;
/* x and y define coordinate of top left of of the initial explicitly
* placed tile. The width and height are the image scaling and the
* bounding box defines the extent of the repeat (which may go in all
* four directions from the initial tile).
*/
if (!(repeat_x || repeat_y)) {
/* Not repeating at all, so just plot it */
loc.x0 = x;
loc.y0 = y;
loc.x1 = loc.x0 + width;
loc.y1 = loc.y0 + height;
return nsfb_plot_copy(bm, NULL, nsfb, &loc);
}
nsfb_plot_get_clip(nsfb, &clipbox);
nsfb_get_geometry(bm, &bmwidth, &bmheight, NULL);
nsfb_get_buffer(bm, &bmptr, NULL);
/* Optimise tiled plots of 1x1 bitmaps by replacing with a flat fill
* of the area. Can only be done when image is fully opaque. */
if ((bmwidth == 1) && (bmheight == 1)) {
if ((*(nsfb_colour_t *)bmptr & 0xff000000) != 0) {
return nsfb_plot_rectangle_fill(nsfb, &clipbox,
*(nsfb_colour_t *)bmptr);
}
}
/* Optimise tiled plots of bitmaps scaled to 1x1 by replacing with
* a flat fill of the area. Can only be done when image is fully
* opaque. */
if ((width == 1) && (height == 1)) {
if (bitmap_get_opaque(bm)) {
/** TODO: Currently using top left pixel. Maybe centre
* pixel or average value would be better. */
return nsfb_plot_rectangle_fill(nsfb, &clipbox,
*(nsfb_colour_t *)bmptr);
}
}
/* get left most tile position */
if (repeat_x)
for (; x > clipbox.x0; x -= width);
/* get top most tile position */
if (repeat_y)
for (; y > clipbox.y0; y -= height);
/* tile down and across to extents */
for (xf = x; xf < clipbox.x1; xf += width) {
for (yf = y; yf < clipbox.y1; yf += height) {
loc.x0 = xf;
loc.y0 = yf;
loc.x1 = loc.x0 + width;
loc.y1 = loc.y0 + height;
nsfb_plot_copy(bm, NULL, nsfb, &loc);
if (!repeat_y)
break;
}
if (!repeat_x)
break;
}
return true;
}
static void
fb_pan(fbtk_widget_t *widget,
struct browser_widget_s *bwidget,
struct browser_window *bw)
{
int x;
int y;
int width;
int height;
nsfb_bbox_t srcbox;
nsfb_bbox_t dstbox;
nsfb_t *nsfb = fbtk_get_nsfb(widget);
height = fbtk_get_height(widget);
width = fbtk_get_width(widget);
LOG(("panning %d, %d", bwidget->panx, bwidget->pany));
x = fbtk_get_absx(widget);
y = fbtk_get_absy(widget);
/* if the pan exceeds the viewport size just redraw the whole area */
if (bwidget->pany >= height || bwidget->pany <= -height ||
bwidget->panx >= width || bwidget->panx <= -width) {
bwidget->scrolly += bwidget->pany;
bwidget->scrollx += bwidget->panx;
fb_queue_redraw(widget, 0, 0, width, height);
/* ensure we don't try to scroll again */
bwidget->panx = 0;
bwidget->pany = 0;
bwidget->pan_required = false;
return;
}
if (bwidget->pany < 0) {
/* pan up by less then viewport height */
srcbox.x0 = x;
srcbox.y0 = y;
srcbox.x1 = srcbox.x0 + width;
srcbox.y1 = srcbox.y0 + height + bwidget->pany;
dstbox.x0 = x;
dstbox.y0 = y - bwidget->pany;
dstbox.x1 = dstbox.x0 + width;
dstbox.y1 = dstbox.y0 + height + bwidget->pany;
/* move part that remains visible up */
nsfb_plot_copy(nsfb, &srcbox, nsfb, &dstbox);
/* redraw newly exposed area */
bwidget->scrolly += bwidget->pany;
fb_queue_redraw(widget, 0, 0, width, - bwidget->pany);
} else if (bwidget->pany > 0) {
/* pan down by less then viewport height */
srcbox.x0 = x;
srcbox.y0 = y + bwidget->pany;
srcbox.x1 = srcbox.x0 + width;
srcbox.y1 = srcbox.y0 + height - bwidget->pany;
dstbox.x0 = x;
dstbox.y0 = y;
dstbox.x1 = dstbox.x0 + width;
dstbox.y1 = dstbox.y0 + height - bwidget->pany;
/* move part that remains visible down */
nsfb_plot_copy(nsfb, &srcbox, nsfb, &dstbox);
/* redraw newly exposed area */
bwidget->scrolly += bwidget->pany;
fb_queue_redraw(widget, 0, height - bwidget->pany,
width, height);
}
if (bwidget->panx < 0) {
/* pan left by less then viewport width */
srcbox.x0 = x;
srcbox.y0 = y;
srcbox.x1 = srcbox.x0 + width + bwidget->panx;
srcbox.y1 = srcbox.y0 + height;
dstbox.x0 = x - bwidget->panx;
dstbox.y0 = y;
dstbox.x1 = dstbox.x0 + width + bwidget->panx;
dstbox.y1 = dstbox.y0 + height;
/* move part that remains visible left */
nsfb_plot_copy(nsfb, &srcbox, nsfb, &dstbox);
/* redraw newly exposed area */
bwidget->scrollx += bwidget->panx;
fb_queue_redraw(widget, 0, 0, -bwidget->panx, height);
} else if (bwidget->panx > 0) {
/* pan right by less then viewport width */
srcbox.x0 = x + bwidget->panx;
srcbox.y0 = y;
srcbox.x1 = srcbox.x0 + width - bwidget->panx;
srcbox.y1 = srcbox.y0 + height;
dstbox.x0 = x;
dstbox.y0 = y;
dstbox.x1 = dstbox.x0 + width - bwidget->panx;
dstbox.y1 = dstbox.y0 + height;
/* move part that remains visible right */
nsfb_plot_copy(nsfb, &srcbox, nsfb, &dstbox);
/* redraw newly exposed area */
bwidget->scrollx += bwidget->panx;
fb_queue_redraw(widget, width - bwidget->panx, 0,
width, height);
}
bwidget->pan_required = false;
bwidget->panx = 0;
bwidget->pany = 0;
}
static bool
framebuffer_plot_bitmap(int x, int y,
int width, int height,
struct bitmap *bitmap, colour bg,
bitmap_flags_t flags)
{
nsfb_bbox_t loc;
nsfb_bbox_t clipbox;
bool repeat_x = (flags & BITMAPF_REPEAT_X);
bool repeat_y = (flags & BITMAPF_REPEAT_Y);
int bmwidth;
int bmheight;
int bmstride;
enum nsfb_format_e bmformat;
unsigned char *bmptr;
nsfb_t *bm = (nsfb_t *)bitmap;
/* x and y define coordinate of top left of of the initial explicitly
* placed tile. The width and height are the image scaling and the
* bounding box defines the extent of the repeat (which may go in all
* four directions from the initial tile).
*/
if (!(repeat_x || repeat_y)) {
/* Not repeating at all, so just plot it */
loc.x0 = x;
loc.y0 = y;
loc.x1 = loc.x0 + width;
loc.y1 = loc.y0 + height;
return nsfb_plot_copy(bm, NULL, nsfb, &loc);
}
nsfb_plot_get_clip(nsfb, &clipbox);
nsfb_get_geometry(bm, &bmwidth, &bmheight, &bmformat);
nsfb_get_buffer(bm, &bmptr, &bmstride);
/* Optimise tiled plots of 1x1 bitmaps by replacing with a flat fill
* of the area. Can only be done when image is fully opaque. */
if ((bmwidth == 1) && (bmheight == 1)) {
if ((*(nsfb_colour_t *)bmptr & 0xff000000) != 0) {
return nsfb_plot_rectangle_fill(nsfb, &clipbox,
*(nsfb_colour_t *)bmptr);
}
}
/* Optimise tiled plots of bitmaps scaled to 1x1 by replacing with
* a flat fill of the area. Can only be done when image is fully
* opaque. */
if ((width == 1) && (height == 1)) {
if (framebuffer_bitmap_get_opaque(bm)) {
/** TODO: Currently using top left pixel. Maybe centre
* pixel or average value would be better. */
return nsfb_plot_rectangle_fill(nsfb, &clipbox,
*(nsfb_colour_t *)bmptr);
}
}
/* get left most tile position */
if (repeat_x)
for (; x > clipbox.x0; x -= width);
/* get top most tile position */
if (repeat_y)
for (; y > clipbox.y0; y -= height);
/* set up top left tile location */
loc.x0 = x;
loc.y0 = y;
loc.x1 = loc.x0 + width;
loc.y1 = loc.y0 + height;
/* plot tiling across and down to extents */
nsfb_plot_bitmap_tiles(nsfb, &loc,
repeat_x ? ((clipbox.x1 - x) + width - 1) / width : 1,
repeat_y ? ((clipbox.y1 - y) + height - 1) / height : 1,
(nsfb_colour_t *)bmptr, bmwidth, bmheight,
bmstride * 8 / 32, bmformat == NSFB_FMT_ABGR8888);
return true;
}
int main(int argc, char **argv)
{
const char *fename;
enum nsfb_type_e fetype;
nsfb_t *nsfb;
nsfb_event_t event;
int waitloop = 3;
nsfb_bbox_t box;
nsfb_bbox_t box2;
nsfb_bbox_t box3;
uint8_t *fbptr;
int fbstride;
int p[] = { 300,300, 350,350, 400,300, 450,250, 400,200};
int loop;
nsfb_plot_pen_t pen;
const char *dumpfile = NULL;
if (argc < 2) {
fename="sdl";
} else {
fename = argv[1];
if (argc >= 3) {
dumpfile = argv[2];
}
}
fetype = nsfb_type_from_name(fename);
if (fetype == NSFB_SURFACE_NONE) {
fprintf(stderr, "Unable to convert \"%s\" to nsfb surface type\n", fename);
return 1;
}
nsfb = nsfb_new(fetype);
if (nsfb == NULL) {
fprintf(stderr, "Unable to allocate \"%s\" nsfb surface\n", fename);
return 2;
}
if (nsfb_init(nsfb) == -1) {
fprintf(stderr, "Unable to initialise nsfb surface\n");
nsfb_free(nsfb);
return 4;
}
/* get the geometry of the whole screen */
box.x0 = box.y0 = 0;
nsfb_get_geometry(nsfb, &box.x1, &box.y1, NULL);
nsfb_get_buffer(nsfb, &fbptr, &fbstride);
/* claim the whole screen for update */
nsfb_claim(nsfb, &box);
/* first test, repeatedly clear the graphics area, should result in the
* same operation as a single clear to the final colour
*/
for (loop = 0; loop < 256;loop++) {
nsfb_plot_clg(nsfb, 0xffffff00 | loop);
}
/* draw black radial lines from the origin */
pen.stroke_colour = 0xff000000;
for (loop = 0; loop < box.x1; loop += 20) {
box2 = box;
box2.x1 = loop;
nsfb_plot_line(nsfb, &box2, &pen);
}
/* draw blue radial lines from the bottom right */
pen.stroke_colour = 0xffff0000;
for (loop = 0; loop < box.x1; loop += 20) {
box2 = box;
box2.x0 = loop;
nsfb_plot_line(nsfb, &box2, &pen);
}
/* draw green radial lines from the bottom left */
pen.stroke_colour = 0xff00ff00;
for (loop = 0; loop < box.x1; loop += 20) {
box2.x0 = box.x0;
box2.x1 = loop;
box2.y0 = box.y1;
box2.y1 = box.y0;
nsfb_plot_line(nsfb, &box2, &pen);
}
/* draw red radial lines from the top right */
pen.stroke_colour = 0xff0000ff;
for (loop = 0; loop < box.x1; loop += 20) {
box2.x0 = box.x1;
box2.x1 = loop;
box2.y0 = box.y0;
box2.y1 = box.y1;
nsfb_plot_line(nsfb, &box2, &pen);
}
/* draw an unclipped rectangle */
box2.x0 = box2.y0 = 100;
box2.x1 = box2.y1 = 300;
nsfb_plot_rectangle_fill(nsfb, &box2, 0xff0000ff);
nsfb_plot_rectangle(nsfb, &box2, 1, 0xff00ff00, false, false);
nsfb_plot_polygon(nsfb, p, 5, 0xffff0000);
nsfb_plot_set_clip(nsfb, &box2);
box3.x0 = box3.y0 = 200;
box3.x1 = box3.y1 = 400;
nsfb_plot_rectangle_fill(nsfb, &box3, 0xff00ffff);
nsfb_plot_rectangle(nsfb, &box3, 1, 0xffffff00, false, false);
for (loop = 100; loop < 400;loop++) {
nsfb_plot_point(nsfb, loop, 150, 0xffaa1111);
nsfb_plot_point(nsfb, loop, 160, 0x99aa1111);
}
nsfb_plot_set_clip(nsfb, NULL);
box3.x0 = box3.y0 = 400;
box3.x1 = box3.y1 = 600;
nsfb_plot_ellipse_fill(nsfb, &box3, 0xffff0000);
nsfb_plot_ellipse(nsfb, &box3, 0xff0000ff);
box3.x0 = 500;
box3.x1 = 700;
box3.y0 = 400;
box3.y1 = 500;
nsfb_plot_ellipse_fill(nsfb, &box3, 0xffff0000);
nsfb_plot_ellipse(nsfb, &box3, 0xff0000ff);
box3.x0 = 600;
box3.x1 = 700;
box3.y0 = 300;
box3.y1 = 500;
nsfb_plot_ellipse_fill(nsfb, &box3, 0xff0000ff);
nsfb_plot_ellipse(nsfb, &box3, 0xffff0000);
box2.x0 = 400;
box2.y0 = 400;
box2.x1 = 500;
box2.y1 = 500;
box3.x0 = 600;
box3.y0 = 200;
box3.x1 = 700;
box3.y1 = 300;
nsfb_plot_copy(nsfb, &box2, nsfb, &box3);
/* test glyph plotting */
for (loop = 100; loop < 200; loop+= Mglyph1.w) {
box3.x0 = loop;
box3.y0 = 20;
box3.x1 = box3.x0 + Mglyph8.w;
box3.y1 = box3.y0 + Mglyph8.h;
nsfb_plot_glyph1(nsfb, &box3, Mglyph1.data, Mglyph1.w, 0xff000000);
}
/* test glyph plotting */
for (loop = 100; loop < 200; loop+= Mglyph8.w) {
box3.x0 = loop;
box3.y0 = 50;
box3.x1 = box3.x0 + Mglyph8.w;
box3.y1 = box3.y0 + Mglyph8.h;
nsfb_plot_glyph8(nsfb, &box3, Mglyph8.data, Mglyph8.w, 0xff000000);
}
nsfb_update(nsfb, &box);
/* random rectangles in clipped area*/
box2.x0 = 400;
box2.y0 = 50;
box2.x1 = 600;
box2.y1 = 100;
nsfb_plot_set_clip(nsfb, &box2);
srand(1234);
for (loop=0; loop < 10000; loop++) {
nsfb_claim(nsfb, &box2);
box3.x0 = rand() / (RAND_MAX / box.x1);
box3.y0 = rand() / (RAND_MAX / box.y1);
box3.x1 = rand() / (RAND_MAX / 400);
box3.y1 = rand() / (RAND_MAX / 400);
nsfb_plot_rectangle_fill(nsfb, &box3, 0xff000000 | rand());
nsfb_update(nsfb, &box2);
}
/* wait for quit event or timeout */
while (waitloop > 0) {
if (nsfb_event(nsfb, &event, 1000) == false) {
break;
}
if (event.type == NSFB_EVENT_CONTROL) {
if (event.value.controlcode == NSFB_CONTROL_TIMEOUT) {
/* timeout */
waitloop--;
} else if (event.value.controlcode == NSFB_CONTROL_QUIT) {
break;
}
}
}
dump(nsfb, dumpfile);
nsfb_free(nsfb);
return 0;
}
