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python: Read rgba8 with a single transfer.

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This commit is contained in:
José Fonseca 2009-03-30 19:48:30 +01:00
parent ffaff2736f
commit b4de7c4c5f
1 changed files with 14 additions and 17 deletions
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31
src/gallium/state_trackers/python/p_texture.i
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@ -225,31 +225,28 @@ struct st_surface
if(!*STRING)
return;
rgba = malloc(w*4*sizeof(float));
rgba = malloc(h*w*4*sizeof(float));
if(!rgba)
return;
rgba8 = (unsigned char *) *STRING;
for(j = 0; j < h; ++j) {
transfer = screen->get_tex_transfer(screen,
$self->texture,
$self->face,
$self->level,
$self->zslice,
PIPE_TRANSFER_READ,
x, y + j,
w,
1);
if(transfer) {
pipe_get_tile_rgba(transfer,
0, 0, w, 1,
rgba);
transfer = screen->get_tex_transfer(screen,
$self->texture,
$self->face,
$self->level,
$self->zslice,
PIPE_TRANSFER_READ,
x, y,
w, h);
if(transfer) {
pipe_get_tile_rgba(transfer, 0, 0, w, h, rgba);
for(j = 0; j < h; ++j) {
for(i = 0; i < w; ++i)
for(k = 0; k <4; ++k)
rgba8[j*w*4 + i*4 + k] = float_to_ubyte(rgba[i*4 + k]);
screen->tex_transfer_destroy(transfer);
rgba8[j*w*4 + i*4 + k] = float_to_ubyte(rgba[j*w*4 + i*4 + k]);
}
screen->tex_transfer_destroy(transfer);
}
free(rgba);