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glamor: Add support for using EXT_framebuffer_blit to do CopyArea.

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Eric Anholt 2010-02-19 07:14:13 -08:00 committed by Zhigang Gong
parent d2da9d1c22
commit 8cfcc61403
1 changed files with 87 additions and 0 deletions
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87
glamor/glamor_copyarea.c
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@ -32,6 +32,88 @@
* GC CopyArea implementation
*/
static Bool
glamor_copy_n_to_n_fbo_blit(DrawablePtr src,
DrawablePtr dst,
GCPtr gc,
BoxPtr box,
int nbox,
int dx,
int dy)
{
ScreenPtr screen = dst->pScreen;
PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
glamor_pixmap_private *src_pixmap_priv;
int dst_x_off, dst_y_off, src_x_off, src_y_off, i;
if (src == dst) {
glamor_delayed_fallback(screen, "glamor_copy_n_to_n_fbo_blit(): "
"src == dest\n");
return FALSE;
}
if (!GLEW_EXT_framebuffer_blit) {
glamor_delayed_fallback(screen, "glamor_copy_n_to_n_fbo_blit(): "
"no EXT_framebuffer_blit\n");
return FALSE;
}
src_pixmap_priv = glamor_get_pixmap_private(src_pixmap);
if (src_pixmap_priv->fb == 0) {
PixmapPtr screen_pixmap = screen->GetScreenPixmap(screen);
if (src_pixmap != screen_pixmap) {
glamor_delayed_fallback(screen, "glamor_copy_n_to_n_fbo_blit(): "
"no src fbo\n");
return FALSE;
}
}
if (gc) {
if (gc->alu != GXcopy) {
glamor_delayed_fallback(screen, "glamor_copy_n_to_n_fbo_blit(): "
"non-copy ALU\n");
return FALSE;
}
if (!glamor_pm_is_solid(dst, gc->planemask)) {
glamor_delayed_fallback(screen, "glamor_copy_n_to_n_fbo_blit(): "
"non-solid planemask\n");
return FALSE;
}
}
if (!glamor_set_destination_pixmap(dst_pixmap))
return FALSE;
glBindFramebuffer(GL_READ_FRAMEBUFFER_EXT, src_pixmap_priv->fb);
glamor_get_drawable_deltas(dst, dst_pixmap, &dst_x_off, &dst_y_off);
glamor_get_drawable_deltas(src, src_pixmap, &src_x_off, &src_y_off);
src_y_off += dy;
for (i = 0; i < nbox; i++) {
int flip_dst_y1 = dst_pixmap->drawable.height - (box[i].y2 + dst_y_off);
int flip_dst_y2 = dst_pixmap->drawable.height - (box[i].y1 + dst_y_off);
int flip_src_y1 = src_pixmap->drawable.height - (box[i].y2 + src_y_off);
int flip_src_y2 = src_pixmap->drawable.height - (box[i].y1 + src_y_off);
glBlitFramebufferEXT(box[i].x1 + dx + src_x_off,
flip_src_y1,
box[i].x2 + dx + src_x_off,
flip_src_y2,
box[i].x1 + dst_x_off,
flip_dst_y1,
box[i].x2 + dst_x_off,
flip_dst_y2,
GL_COLOR_BUFFER_BIT,
GL_NEAREST);
}
return TRUE;
}
static Bool
glamor_copy_n_to_n_copypixels(DrawablePtr src,
DrawablePtr dst,
@ -199,6 +281,11 @@ glamor_copy_n_to_n(DrawablePtr src,
Pixel bitplane,
void *closure)
{
if (glamor_copy_n_to_n_fbo_blit(src, dst, gc, box, nbox, dx, dy)) {
glamor_clear_delayed_fallbacks(dst->pScreen);
return;
}
if (glamor_copy_n_to_n_copypixels(src, dst, gc, box, nbox, dx, dy)) {
glamor_clear_delayed_fallbacks(dst->pScreen);
return;