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glamor: Add acceleration for copyarea not from the screen.

This commit is contained in:
Eric Anholt 2010-02-08 21:24:15 +01:00 committed by Zhigang Gong
parent 647b9fb49a
commit 35847c578e
1 changed files with 93 additions and 26 deletions
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113
glamor/glamor_copyarea.c
View File

@ -32,6 +32,30 @@
* GC CopyArea implementation
*/
static float
v_from_x_coord_x(PixmapPtr pixmap, int x)
{
return (float)(x - pixmap->screen_x) / pixmap->drawable.width * 2.0 - 1.0;
}
static float
v_from_x_coord_y(PixmapPtr pixmap, int y)
{
return (float)(y - pixmap->screen_y) / pixmap->drawable.height * -2.0 + 1.0;
}
static float
t_from_x_coord_x(PixmapPtr pixmap, int x)
{
return (float)(x - pixmap->screen_x) / pixmap->drawable.width;
}
static float
t_from_x_coord_y(PixmapPtr pixmap, int y)
{
return 1.0 - (float)(y - pixmap->screen_y) / pixmap->drawable.height;
}
void
glamor_copy_n_to_n(DrawablePtr src,
DrawablePtr dst,
@ -45,16 +69,78 @@ glamor_copy_n_to_n(DrawablePtr src,
Pixel bitplane,
void *closure)
{
glamor_screen_private *glamor_priv =
glamor_get_screen_private(dst->pScreen);
PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
int i;
float vertices[4][2], texcoords[4][2];
glamor_pixmap_private *src_pixmap_priv;
src_pixmap_priv = glamor_get_pixmap_private(src_pixmap);
if (src == dst) {
glamor_fallback("glamor_copy_n_to_n with same src/dst\n");
goto fail;
}
if (!src_pixmap_priv || !src_pixmap_priv->tex) {
glamor_fallback("glamor_copy_n_to_n with non-texture src\n");
goto fail;
}
if (!glamor_set_destination_pixmap(dst_pixmap))
goto fail;
if (gc) {
glamor_set_alu(gc->alu);
if (!glamor_set_planemask(dst_pixmap, gc->planemask))
goto fail;
}
glBindTexture(GL_TEXTURE_2D, src_pixmap_priv->tex);
glEnable(GL_TEXTURE_2D);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glVertexPointer(2, GL_FLOAT, sizeof(float) * 2, vertices);
glEnableClientState(GL_VERTEX_ARRAY);
glClientActiveTexture(GL_TEXTURE0);
glTexCoordPointer(2, GL_FLOAT, sizeof(float) * 2, texcoords);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
assert(GLEW_ARB_fragment_shader);
glUseProgramObjectARB(glamor_priv->finish_access_prog);
for (i = 0; i < nbox; i++) {
vertices[0][0] = v_from_x_coord_x(dst_pixmap, box[i].x1);
vertices[0][1] = v_from_x_coord_y(dst_pixmap, box[i].y1);
vertices[1][0] = v_from_x_coord_x(dst_pixmap, box[i].x2);
vertices[1][1] = v_from_x_coord_y(dst_pixmap, box[i].y1);
vertices[2][0] = v_from_x_coord_x(dst_pixmap, box[i].x2);
vertices[2][1] = v_from_x_coord_y(dst_pixmap, box[i].y2);
vertices[3][0] = v_from_x_coord_x(dst_pixmap, box[i].x1);
vertices[3][1] = v_from_x_coord_y(dst_pixmap, box[i].y2);
texcoords[0][0] = t_from_x_coord_x(src_pixmap, box[i].x1 + dx);
texcoords[0][1] = t_from_x_coord_y(src_pixmap, box[i].y1 + dy);
texcoords[1][0] = t_from_x_coord_x(src_pixmap, box[i].x2 + dx);
texcoords[1][1] = t_from_x_coord_y(src_pixmap, box[i].y1 + dy);
texcoords[2][0] = t_from_x_coord_x(src_pixmap, box[i].x2 + dx);
texcoords[2][1] = t_from_x_coord_y(src_pixmap, box[i].y2 + dy);
texcoords[3][0] = t_from_x_coord_x(src_pixmap, box[i].x1 + dx);
texcoords[3][1] = t_from_x_coord_y(src_pixmap, box[i].y2 + dy);
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
}
glUseProgramObjectARB(0);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisable(GL_TEXTURE_2D);
#if 0
for (i = 0; i < nbox; i++) {
glRasterPos2i(box[i].x1 - dst_pixmap->screen_x,
box[i].y1 - dst_pixmap->screen_y);
@ -64,9 +150,12 @@ glamor_copy_n_to_n(DrawablePtr src,
box[i].y2 - box[i].y1,
GL_COLOR);
}
#endif
return;
fail:
glamor_fallback("from %p to %p (%c,%c)\n", src, dst,
glamor_fallback("glamor_copy_area() from %p to %p (%c,%c)\n", src, dst,
glamor_get_drawable_location(src),
glamor_get_drawable_location(dst));
if (glamor_prepare_access(dst, GLAMOR_ACCESS_RW)) {
@ -89,31 +178,9 @@ glamor_copy_area(DrawablePtr src, DrawablePtr dst, GCPtr gc,
ScreenPtr screen = dst->pScreen;
PixmapPtr screen_pixmap = screen->GetScreenPixmap(screen);
PixmapPtr src_pixmap = glamor_get_drawable_pixmap(src);
PixmapPtr dst_pixmap = glamor_get_drawable_pixmap(dst);
glamor_pixmap_private *src_priv = glamor_get_pixmap_private(src_pixmap);
RegionPtr region;
if (!GLEW_EXT_framebuffer_blit) {
glamor_fallback("glamor_copy_area(): "
"EXT_framebuffer_blit unsupported\n");
goto fail;
}
if (!glamor_set_destination_pixmap(dst_pixmap))
goto fail;
if (src_priv == NULL) {
glamor_fallback("glamor_copy_area(): no src pixmap priv");
goto fail;
}
if (src_priv->fb == 0 && src_pixmap != screen_pixmap) {
glamor_fallback("glamor_copy_area(): no src fbo");
goto fail;
}
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, src_priv->fb);
region = miDoCopy(src, dst, gc,
srcx, srcy, width, height,
dstx, dsty, glamor_copy_n_to_n, 0, NULL);