Bool
glamor_set_texture_pixmap(PixmapPtr texture)
{
glamor_pixmap_private *texture_priv;
texture_priv = glamor_get_pixmap_private(texture);
if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(texture_priv))
return FALSE;
if (glamor_pixmap_priv_is_large(texture_priv))
return FALSE;
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, texture_priv->fbo->tex);
/* we're not setting the sampler uniform here as we always use
* GL_TEXTURE0, and the default value for uniforms is zero. So,
* save a bit of CPU time by taking advantage of that.
*/
return TRUE;
}
Bool
glamor_set_texture_pixmap(PixmapPtr texture, Bool destination_red)
{
glamor_pixmap_private *texture_priv;
texture_priv = glamor_get_pixmap_private(texture);
if (!GLAMOR_PIXMAP_PRIV_HAS_FBO(texture_priv))
return FALSE;
if (glamor_pixmap_priv_is_large(texture_priv))
return FALSE;
glamor_bind_texture(glamor_get_screen_private(texture->drawable.pScreen),
GL_TEXTURE0,
texture_priv->fbo, destination_red);
/* we're not setting the sampler uniform here as we always use
* GL_TEXTURE0, and the default value for uniforms is zero. So,
* save a bit of CPU time by taking advantage of that.
*/
return TRUE;
}
static Bool
glamor_upload_sub_pixmap_to_texture(PixmapPtr pixmap, int x, int y, int w,
int h, int stride, void *bits, int pbo,
PictFormatShort pict_format)
{
ScreenPtr screen = pixmap->drawable.pScreen;
glamor_screen_private *glamor_priv = glamor_get_screen_private(screen);
GLenum format, type;
int no_alpha, revert, swap_rb;
glamor_pixmap_private *pixmap_priv;
Bool force_clip;
if (glamor_get_tex_format_type_from_pixmap(pixmap,
pict_format,
&format,
&type,
&no_alpha,
&revert, &swap_rb, 1)) {
glamor_fallback("Unknown pixmap depth %d.\n", pixmap->drawable.depth);
return FALSE;
}
if (glamor_pixmap_upload_prepare(pixmap, format, no_alpha, revert, swap_rb))
return FALSE;
pixmap_priv = glamor_get_pixmap_private(pixmap);
force_clip = glamor_priv->gl_flavor != GLAMOR_GL_DESKTOP
&& !glamor_check_fbo_size(glamor_priv, w, h);
if (glamor_pixmap_priv_is_large(pixmap_priv) || force_clip) {
RegionRec region;
BoxRec box;
int n_region;
glamor_pixmap_clipped_regions *clipped_regions;
void *sub_bits;
int i, j;
sub_bits = xallocarray(h, stride);
if (sub_bits == NULL)
return FALSE;
box.x1 = x;
box.y1 = y;
box.x2 = x + w;
box.y2 = y + h;
RegionInitBoxes(®ion, &box, 1);
if (!force_clip)
clipped_regions =
glamor_compute_clipped_regions(pixmap, ®ion, &n_region,
0, 0, 0);
else
clipped_regions =
glamor_compute_clipped_regions_ext(pixmap, ®ion,
&n_region,
pixmap_priv->block_w,
pixmap_priv->block_h,
0,
0);
DEBUGF("prepare upload %dx%d to a large pixmap %p\n", w, h, pixmap);
for (i = 0; i < n_region; i++) {
BoxPtr boxes;
int nbox;
int temp_stride;
void *temp_bits;
assert(pbo == 0);
glamor_set_pixmap_fbo_current(pixmap_priv, clipped_regions[i].block_idx);
boxes = RegionRects(clipped_regions[i].region);
nbox = RegionNumRects(clipped_regions[i].region);
DEBUGF("split to %d boxes\n", nbox);
for (j = 0; j < nbox; j++) {
temp_stride = PixmapBytePad(boxes[j].x2 - boxes[j].x1,
pixmap->drawable.depth);
if (boxes[j].x1 == x && temp_stride == stride) {
temp_bits = (char *) bits + (boxes[j].y1 - y) * stride;
}
else {
temp_bits = sub_bits;
glamor_put_bits(temp_bits, temp_stride, bits, stride,
pixmap->drawable.bitsPerPixel,
boxes[j].x1 - x, boxes[j].y1 - y,
boxes[j].x2 - boxes[j].x1,
boxes[j].y2 - boxes[j].y1);
}
DEBUGF("upload x %d y %d w %d h %d temp stride %d \n",
boxes[j].x1 - x, boxes[j].y1 - y,
boxes[j].x2 - boxes[j].x1,
boxes[j].y2 - boxes[j].y1, temp_stride);
if (_glamor_upload_bits_to_pixmap_texture
(pixmap, format, type, no_alpha, revert, swap_rb,
boxes[j].x1, boxes[j].y1, boxes[j].x2 - boxes[j].x1,
boxes[j].y2 - boxes[j].y1, temp_stride, temp_bits,
pbo) == FALSE) {
RegionUninit(®ion);
free(sub_bits);
assert(0);
return FALSE;
}
}
RegionDestroy(clipped_regions[i].region);
}
free(sub_bits);
free(clipped_regions);
RegionUninit(®ion);
return TRUE;
}
else
return _glamor_upload_bits_to_pixmap_texture(pixmap, format, type,
no_alpha, revert, swap_rb,
x, y, w, h, stride, bits,
pbo);
}
