void
lp_scene_begin_rasterization(struct lp_scene *scene)
{
const struct pipe_framebuffer_state *fb = &scene->fb;
int i;
//LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
for (i = 0; i < scene->fb.nr_cbufs; i++) {
struct pipe_surface *cbuf = scene->fb.cbufs[i];
scene->cbufs[i].stride = llvmpipe_resource_stride(cbuf->texture,
cbuf->level);
scene->cbufs[i].map = llvmpipe_resource_map(cbuf->texture,
cbuf->face,
cbuf->level,
cbuf->zslice,
LP_TEX_USAGE_READ_WRITE,
LP_TEX_LAYOUT_LINEAR);
}
if (fb->zsbuf) {
struct pipe_surface *zsbuf = scene->fb.zsbuf;
scene->zsbuf.stride = llvmpipe_resource_stride(zsbuf->texture, zsbuf->level);
scene->zsbuf.blocksize =
util_format_get_blocksize(zsbuf->texture->format);
scene->zsbuf.map = llvmpipe_resource_map(zsbuf->texture,
zsbuf->face,
zsbuf->level,
zsbuf->zslice,
LP_TEX_USAGE_READ_WRITE,
LP_TEX_LAYOUT_NONE);
}
}
void
lp_scene_begin_rasterization(struct lp_scene *scene)
{
const struct pipe_framebuffer_state *fb = &scene->fb;
int i;
//LP_DBG(DEBUG_RAST, "%s\n", __FUNCTION__);
for (i = 0; i < scene->fb.nr_cbufs; i++) {
struct pipe_surface *cbuf = scene->fb.cbufs[i];
if (llvmpipe_resource_is_texture(cbuf->texture)) {
assert(cbuf->u.tex.first_layer == cbuf->u.tex.last_layer);
scene->cbufs[i].stride = llvmpipe_resource_stride(cbuf->texture,
cbuf->u.tex.level);
scene->cbufs[i].map = llvmpipe_resource_map(cbuf->texture,
cbuf->u.tex.level,
cbuf->u.tex.first_layer,
LP_TEX_USAGE_READ_WRITE,
LP_TEX_LAYOUT_LINEAR);
}
else {
struct llvmpipe_resource *lpr = llvmpipe_resource(cbuf->texture);
unsigned pixstride = util_format_get_blocksize(cbuf->format);
scene->cbufs[i].stride = cbuf->texture->width0;
scene->cbufs[i].map = lpr->data;
scene->cbufs[i].map += cbuf->u.buf.first_element * pixstride;
}
}
if (fb->zsbuf) {
struct pipe_surface *zsbuf = scene->fb.zsbuf;
assert(zsbuf->u.tex.first_layer == zsbuf->u.tex.last_layer);
scene->zsbuf.stride = llvmpipe_resource_stride(zsbuf->texture, zsbuf->u.tex.level);
scene->zsbuf.blocksize =
util_format_get_blocksize(zsbuf->texture->format);
scene->zsbuf.map = llvmpipe_resource_map(zsbuf->texture,
zsbuf->u.tex.level,
zsbuf->u.tex.first_layer,
LP_TEX_USAGE_READ_WRITE,
LP_TEX_LAYOUT_NONE);
}
}