#include "lp_context.h"
#include "lp_screen.h"
+#include "lp_flush.h"
#include "lp_texture.h"
#include "lp_tile_size.h"
#include "state_tracker/sw_winsys.h"
unsigned height = align(lpt->base.height0, TILE_SIZE);
lpt->dt = winsys->displaytarget_create(winsys,
+ lpt->base.tex_usage,
lpt->base.format,
width, height,
16,
}
+/**
+ * Map a texture. Without any synchronization.
+ */
+void *
+llvmpipe_texture_map(struct pipe_texture *texture,
+ unsigned face,
+ unsigned level,
+ unsigned zslice)
+{
+ struct llvmpipe_texture *lpt = llvmpipe_texture(texture);
+ uint8_t *map;
+
+ if (lpt->dt) {
+ /* display target */
+ struct llvmpipe_screen *screen = llvmpipe_screen(texture->screen);
+ struct sw_winsys *winsys = screen->winsys;
+ const unsigned usage = PIPE_BUFFER_USAGE_CPU_READ_WRITE;
+
+ assert(face == 0);
+ assert(level == 0);
+ assert(zslice == 0);
+
+ /* FIXME: keep map count? */
+ map = winsys->displaytarget_map(winsys, lpt->dt, usage);
+ }
+ else {
+ /* regular texture */
+ unsigned offset;
+ unsigned stride;
+
+ map = lpt->data;
+
+ assert(level < LP_MAX_TEXTURE_2D_LEVELS);
+
+ offset = lpt->level_offset[level];
+ stride = lpt->stride[level];
+
+ /* XXX shouldn't that rather be
+ tex_height = align(u_minify(texture->height0, level), 2)
+ to account for alignment done in llvmpipe_texture_layout ?
+ */
+ if (texture->target == PIPE_TEXTURE_CUBE) {
+ unsigned tex_height = u_minify(texture->height0, level);
+ offset += face * util_format_get_nblocksy(texture->format, tex_height) * stride;
+ }
+ else if (texture->target == PIPE_TEXTURE_3D) {
+ unsigned tex_height = u_minify(texture->height0, level);
+ offset += zslice * util_format_get_nblocksy(texture->format, tex_height) * stride;
+ }
+ else {
+ assert(face == 0);
+ assert(zslice == 0);
+ }
+
+ map += offset;
+ }
+
+ return map;
+}
+
+
+/**
+ * Unmap a texture. Without any synchronization.
+ */
+void
+llvmpipe_texture_unmap(struct pipe_texture *texture,
+ unsigned face,
+ unsigned level,
+ unsigned zslice)
+{
+ struct llvmpipe_texture *lpt = llvmpipe_texture(texture);
+
+ if (lpt->dt) {
+ /* display target */
+ struct llvmpipe_screen *lp_screen = llvmpipe_screen(texture->screen);
+ struct sw_winsys *winsys = lp_screen->winsys;
+
+ assert(face == 0);
+ assert(level == 0);
+ assert(zslice == 0);
+
+ winsys->displaytarget_unmap(winsys, lpt->dt);
+ }
+}
+
+
+static struct pipe_texture *
+llvmpipe_texture_from_handle(struct pipe_screen *screen,
+ const struct pipe_texture *template,
+ struct winsys_handle *whandle)
+{
+ struct sw_winsys *winsys = llvmpipe_screen(screen)->winsys;
+ struct llvmpipe_texture *lpt = CALLOC_STRUCT(llvmpipe_texture);
+ if (!lpt)
+ return NULL;
+
+ lpt->base = *template;
+ pipe_reference_init(&lpt->base.reference, 1);
+ lpt->base.screen = screen;
+
+ lpt->dt = winsys->displaytarget_from_handle(winsys,
+ template,
+ whandle,
+ &lpt->stride[0]);
+ if (!lpt->dt)
+ goto fail;
+
+ return &lpt->base;
+
+ fail:
+ FREE(lpt);
+ return NULL;
+}
+
+
+static boolean
+llvmpipe_texture_get_handle(struct pipe_screen *screen,
+ struct pipe_texture *pt,
+ struct winsys_handle *whandle)
+{
+ struct sw_winsys *winsys = llvmpipe_screen(screen)->winsys;
+ struct llvmpipe_texture *lpt = llvmpipe_texture(pt);
+
+ assert(lpt->dt);
+ if (!lpt->dt)
+ return FALSE;
+
+ return winsys->displaytarget_get_handle(winsys, lpt->dt, whandle);
+}
+
+
static struct pipe_surface *
llvmpipe_get_tex_surface(struct pipe_screen *screen,
struct pipe_texture *pt,
ps->format = pt->format;
ps->width = u_minify(pt->width0, level);
ps->height = u_minify(pt->height0, level);
- ps->offset = lpt->level_offset[level];
ps->usage = usage;
/* Because we are llvmpipe, anything that the state tracker
ps->face = face;
ps->level = level;
ps->zslice = zslice;
-
- /* XXX shouldn't that rather be
- tex_height = align(ps->height, 2);
- to account for alignment done in llvmpipe_texture_layout ?
- */
- if (pt->target == PIPE_TEXTURE_CUBE) {
- unsigned tex_height = ps->height;
- ps->offset += face * util_format_get_nblocksy(pt->format, tex_height) * lpt->stride[level];
- }
- else if (pt->target == PIPE_TEXTURE_3D) {
- unsigned tex_height = ps->height;
- ps->offset += zslice * util_format_get_nblocksy(pt->format, tex_height) * lpt->stride[level];
- }
- else {
- assert(face == 0);
- assert(zslice == 0);
- }
}
return ps;
}
pt->level = level;
pt->zslice = zslice;
- lpt->offset = lptex->level_offset[level];
-
- /* XXX shouldn't that rather be
- tex_height = align(u_minify(texture->height0, level), 2)
- to account for alignment done in llvmpipe_texture_layout ?
- */
- if (texture->target == PIPE_TEXTURE_CUBE) {
- unsigned tex_height = u_minify(texture->height0, level);
- lpt->offset += face * util_format_get_nblocksy(texture->format, tex_height) * pt->stride;
- }
- else if (texture->target == PIPE_TEXTURE_3D) {
- unsigned tex_height = u_minify(texture->height0, level);
- lpt->offset += zslice * util_format_get_nblocksy(texture->format, tex_height) * pt->stride;
- }
- else {
- assert(face == 0);
- assert(zslice == 0);
- }
return pt;
}
return NULL;
struct pipe_transfer *transfer )
{
struct llvmpipe_screen *screen = llvmpipe_screen(pipe->screen);
- ubyte *map, *xfer_map;
+ ubyte *map;
struct llvmpipe_texture *lpt;
enum pipe_format format;
lpt = llvmpipe_texture(transfer->texture);
format = lpt->base.format;
- if (lpt->dt) {
- /* display target */
- struct sw_winsys *winsys = screen->winsys;
+ /*
+ * Transfers, like other pipe operations, must happen in order, so flush the
+ * context if necessary.
+ */
+ llvmpipe_flush_texture(pipe,
+ transfer->texture, transfer->face, transfer->level,
+ 0, /* flush_flags */
+ !(transfer->usage & PIPE_TRANSFER_WRITE), /* read_only */
+ TRUE, /* cpu_access */
+ FALSE); /* do_not_flush */
- map = winsys->displaytarget_map(winsys, lpt->dt,
- pipe_transfer_buffer_flags(transfer));
- if (map == NULL)
- return NULL;
- }
- else {
- /* regular texture */
- map = lpt->data;
- }
+ map = llvmpipe_texture_map(transfer->texture,
+ transfer->face, transfer->level, transfer->zslice);
/* May want to different things here depending on read/write nature
* of the map:
*/
- if (transfer->texture && (transfer->usage & PIPE_TRANSFER_WRITE)) {
+ if (transfer->usage & PIPE_TRANSFER_WRITE) {
/* Do something to notify sharing contexts of a texture change.
*/
screen->timestamp++;
}
- xfer_map = map + llvmpipe_transfer(transfer)->offset +
+ map +=
transfer->y / util_format_get_blockheight(format) * transfer->stride +
transfer->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format);
- /*printf("map = %p xfer map = %p\n", map, xfer_map);*/
- return xfer_map;
+
+ return map;
}
llvmpipe_transfer_unmap(struct pipe_context *pipe,
struct pipe_transfer *transfer)
{
- struct llvmpipe_screen *lp_screen = llvmpipe_screen(pipe->screen);
- struct llvmpipe_texture *lpt;
-
assert(transfer->texture);
- lpt = llvmpipe_texture(transfer->texture);
- if (lpt->dt) {
- /* display target */
- struct sw_winsys *winsys = lp_screen->winsys;
- winsys->displaytarget_unmap(winsys, lpt->dt);
- }
+ llvmpipe_texture_unmap(transfer->texture,
+ transfer->face, transfer->level, transfer->zslice);
}
{
screen->texture_create = llvmpipe_texture_create;
screen->texture_destroy = llvmpipe_texture_destroy;
+ screen->texture_get_handle = llvmpipe_texture_get_handle;
screen->get_tex_surface = llvmpipe_get_tex_surface;
screen->tex_surface_destroy = llvmpipe_tex_surface_destroy;
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