void vgCopyPixels(VGint dx, VGint dy,
VGint sx, VGint sy,
VGint width, VGint height)
{
struct vg_context *ctx = vg_current_context();
struct pipe_framebuffer_state *fb = &ctx->state.g3d.fb;
struct st_renderbuffer *strb = ctx->draw_buffer->strb;
if (width <= 0 || height <= 0) {
vg_set_error(ctx, VG_ILLEGAL_ARGUMENT_ERROR);
return;
}
/* do nothing if we copy from outside the fb */
if (dx >= (VGint)fb->width || dy >= (VGint)fb->height ||
sx >= (VGint)fb->width || sy >= (VGint)fb->height)
return;
vg_validate_state(ctx);
/* make sure rendering has completed */
vgFinish();
vg_copy_surface(ctx, strb->surface, dx, dy,
strb->surface, sx, sy, width, height);
}
void image_set_pixels(VGint dx, VGint dy,
struct vg_image *src, VGint sx, VGint sy,
VGint width, VGint height)
{
struct vg_context *ctx = vg_current_context();
struct pipe_context *pipe = ctx->pipe;
struct pipe_surface *surf, surf_tmpl;
struct st_renderbuffer *strb = ctx->draw_buffer->strb;
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
u_surface_default_template(&surf_tmpl, image_texture(src),
0 /* no bind flag - not a surface*/);
surf = pipe->create_surface(pipe, image_texture(src), &surf_tmpl);
vg_copy_surface(ctx, strb->surface, dx, dy,
surf, sx+src->x, sy+src->y, width, height);
pipe->surface_destroy(pipe, surf);
}
void image_set_pixels(VGint dx, VGint dy,
struct vg_image *src, VGint sx, VGint sy,
VGint width, VGint height)
{
struct vg_context *ctx = vg_current_context();
struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
struct pipe_surface *surf;
struct st_renderbuffer *strb = ctx->draw_buffer->strb;
/* make sure rendering has completed */
pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
surf = screen->get_tex_surface(screen, image_texture(src), 0, 0, 0,
PIPE_BUFFER_USAGE_GPU_READ);
vg_copy_surface(ctx, strb->surface, dx, dy,
surf, sx+src->x, sy+src->y, width, height);
screen->tex_surface_destroy(surf);
}
void image_get_pixels(struct vg_image *dst, VGint dx, VGint dy,
VGint sx, VGint sy,
VGint width, VGint height)
{
struct vg_context *ctx = vg_current_context();
struct pipe_context *pipe = ctx->pipe;
struct pipe_surface *surf, surf_tmpl;
struct st_renderbuffer *strb = ctx->draw_buffer->strb;
/* flip the y coordinates */
/*dy = dst->height - dy - height;*/
memset(&surf_tmpl, 0, sizeof(surf_tmpl));
u_surface_default_template(&surf_tmpl, image_texture(dst),
PIPE_BIND_RENDER_TARGET);
surf = pipe->create_surface(pipe, image_texture(dst), &surf_tmpl);
vg_copy_surface(ctx, surf, dst->x + dx, dst->y + dy,
strb->surface, sx, sy, width, height);
pipe_surface_reference(&surf, NULL);
}
void image_get_pixels(struct vg_image *dst, VGint dx, VGint dy,
VGint sx, VGint sy,
VGint width, VGint height)
{
struct vg_context *ctx = vg_current_context();
struct pipe_context *pipe = ctx->pipe;
struct pipe_screen *screen = pipe->screen;
struct pipe_surface *surf;
struct st_renderbuffer *strb = ctx->draw_buffer->strb;
/* flip the y coordinates */
/*dy = dst->height - dy - height;*/
/* make sure rendering has completed */
pipe->flush(pipe, PIPE_FLUSH_RENDER_CACHE, NULL);
surf = screen->get_tex_surface(screen, image_texture(dst), 0, 0, 0,
PIPE_BUFFER_USAGE_GPU_WRITE |
PIPE_BUFFER_USAGE_GPU_READ);
vg_copy_surface(ctx, surf, dst->x + dx, dst->y + dy,
strb->surface, sx, sy, width, height);
pipe_surface_reference(&surf, NULL);
}
