static int
pixman_renderer_read_pixels(struct weston_output *output,
pixman_format_code_t format, void *pixels,
uint32_t x, uint32_t y,
uint32_t width, uint32_t height)
{
struct pixman_output_state *po = get_output_state(output);
pixman_transform_t transform;
pixman_image_t *out_buf;
if (!po->hw_buffer) {
errno = ENODEV;
return -1;
}
out_buf = pixman_image_create_bits(format,
width,
height,
pixels,
(PIXMAN_FORMAT_BPP(format) / 8) * width);
/* Caller expects vflipped source image */
pixman_transform_init_translate(&transform,
pixman_int_to_fixed (x),
pixman_int_to_fixed (y - pixman_image_get_height (po->hw_buffer)));
pixman_transform_scale(&transform, NULL,
pixman_fixed_1,
pixman_fixed_minus_1);
pixman_image_set_transform(po->hw_buffer, &transform);
pixman_image_composite32(PIXMAN_OP_SRC,
po->hw_buffer, /* src */
NULL /* mask */,
out_buf, /* dest */
0, 0, /* src_x, src_y */
0, 0, /* mask_x, mask_y */
0, 0, /* dest_x, dest_y */
pixman_image_get_width (po->hw_buffer), /* width */
pixman_image_get_height (po->hw_buffer) /* height */);
pixman_image_set_transform(po->hw_buffer, NULL);
pixman_image_unref(out_buf);
return 0;
}
void PixmanBitmap::TiledBlit(int ox, int oy, Rect src_rect, Bitmap* src, Rect dst_rect, int opacity) {
if (opacity < 0)
return;
if (opacity > 255) opacity = 255;
if (ox >= src_rect.width) ox %= src_rect.width;
if (oy >= src_rect.height) ox %= src_rect.height;
if (ox < 0) ox += src_rect.width * ((-ox + src_rect.width - 1) / src_rect.width);
if (oy < 0) oy += src_rect.height * ((-oy + src_rect.height - 1) / src_rect.height);
pixman_image_t* src_bm = GetSubimage(src, src_rect);
pixman_image_t* mask;
if (opacity < 255) {
pixman_color_t tcolor = {0, 0, 0, opacity << 8};
mask = pixman_image_create_solid_fill(&tcolor);
}
else
mask = (pixman_image_t*) NULL;
pixman_image_set_repeat(src_bm, PIXMAN_REPEAT_NORMAL);
pixman_transform_t xform;
pixman_transform_init_translate(&xform,
pixman_int_to_fixed(ox),
pixman_int_to_fixed(oy));
pixman_image_set_transform(src_bm, &xform);
pixman_image_composite32(PIXMAN_OP_OVER,
src_bm, mask, bitmap,
0, 0,
0, 0,
dst_rect.x, dst_rect.y,
dst_rect.width, dst_rect.height);
pixman_image_unref(src_bm);
if (mask != NULL)
pixman_image_unref(mask);
RefreshCallback();
}
