* USE OR OTHER DEALINGS IN THE SOFTWARE. */
#include "r300_context.h"
+#include "r300_emit.h"
+#include "r300_hyperz.h"
#include "r300_texture.h"
+#include "r300_winsys.h"
#include "util/u_format.h"
+#include "util/u_pack_color.h"
enum r300_blitter_op /* bitmask */
{
}
}
+static uint32_t r300_depth_clear_cb_value(enum pipe_format format,
+ const float* rgba)
+{
+ union util_color uc;
+ util_pack_color(rgba, format, &uc);
+
+ if (util_format_get_blocksizebits(format) == 32)
+ return uc.ui;
+ else
+ return uc.us | (uc.us << 16);
+}
+
+static boolean r300_cbzb_clear_allowed(struct r300_context *r300,
+ unsigned clear_buffers)
+{
+ struct pipe_framebuffer_state *fb =
+ (struct pipe_framebuffer_state*)r300->fb_state.state;
+
+ /* Only color clear allowed, and only one colorbuffer. */
+ if (clear_buffers != PIPE_CLEAR_COLOR || fb->nr_cbufs != 1)
+ return FALSE;
+
+ return r300_surface(fb->cbufs[0])->cbzb_allowed;
+}
+
+static uint32_t r300_depth_clear_value(enum pipe_format format,
+ double depth, unsigned stencil)
+{
+ switch (format) {
+ case PIPE_FORMAT_Z16_UNORM:
+ case PIPE_FORMAT_X8Z24_UNORM:
+ return util_pack_z(format, depth);
+
+ case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
+ return util_pack_z_stencil(format, depth, stencil);
+
+ default:
+ assert(0);
+ return 0;
+ }
+}
+
/* Clear currently bound buffers. */
static void r300_clear(struct pipe_context* pipe,
unsigned buffers,
double depth,
unsigned stencil)
{
- /* XXX Implement fastfill.
+ /* My notes about fastfill:
+ *
+ * 1) Only the zbuffer is cleared.
+ *
+ * 2) The zbuffer must be micro-tiled and whole microtiles must be
+ * written. If microtiling is disabled, it locks up.
*
- * If fastfill is enabled, a few facts should be considered:
+ * 3) There is Z Mask RAM which contains a compressed zbuffer and
+ * it interacts with fastfill. We should figure out how to use it
+ * to get more performance.
+ * This is what we know about the Z Mask:
*
- * 1) Zbuffer must be micro-tiled and whole microtiles must be
- * written.
+ * Each dword of the Z Mask contains compression information
+ * for 16 4x4 pixel blocks, that is 2 bits for each block.
+ * On chips with 2 Z pipes, every other dword maps to a different
+ * pipe.
*
- * 2) ZB_DEPTHCLEARVALUE is used to clear a zbuffer and Z Mask must be
- * equal to 0.
+ * 4) ZB_DEPTHCLEARVALUE is used to clear the zbuffer and the Z Mask must
+ * be equal to 0. (clear the Z Mask RAM with zeros)
*
- * 3) For 16-bit integer buffering, compression causes a hung with one or
+ * 5) For 16-bit zbuffer, compression causes a hung with one or
* two samples and should not be used.
*
- * 4) Fastfill must not be used if reading of compressed Z data is disabled
+ * 6) FORCE_COMPRESSED_STENCIL_VALUE should be enabled for stencil clears
+ * to avoid needless decompression.
+ *
+ * 7) Fastfill must not be used if reading of compressed Z data is disabled
* and writing of compressed Z data is enabled (RD/WR_COMP_ENABLE),
* i.e. it cannot be used to compress the zbuffer.
- * (what the hell does that mean and how does it fit in clearing
- * the buffers?)
+ *
+ * 8) ZB_CB_CLEAR does not interact with fastfill in any way.
*
* - Marek
*/
struct r300_context* r300 = r300_context(pipe);
- struct pipe_framebuffer_state* fb =
+ struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
+ struct r300_hyperz_state *hyperz =
+ (struct r300_hyperz_state*)r300->hyperz_state.state;
+ struct r300_texture *zstex =
+ fb->zsbuf ? r300_texture(fb->zsbuf->texture) : NULL;
+ uint32_t width = fb->width;
+ uint32_t height = fb->height;
+ boolean can_hyperz = r300->rws->get_value(r300->rws, R300_CAN_HYPERZ);
+ uint32_t hyperz_dcv = hyperz->zb_depthclearvalue;
- r300_blitter_begin(r300, R300_CLEAR);
- util_blitter_clear(r300->blitter,
- fb->width,
- fb->height,
- fb->nr_cbufs,
- buffers, rgba, depth, stencil);
- r300_blitter_end(r300);
+ /* Enable fast Z clear.
+ * The zbuffer must be in micro-tiled mode, otherwise it locks up. */
+ if ((buffers & PIPE_CLEAR_DEPTHSTENCIL) && can_hyperz) {
+ hyperz_dcv = hyperz->zb_depthclearvalue =
+ r300_depth_clear_value(fb->zsbuf->format, depth, stencil);
+
+ r300_mark_fb_state_dirty(r300, R300_CHANGED_ZCLEAR_FLAG);
+ if (zstex->zmask_mem[fb->zsbuf->level]) {
+ r300->zmask_clear.dirty = TRUE;
+ buffers &= ~PIPE_CLEAR_DEPTHSTENCIL;
+ }
+ if (zstex->hiz_mem[fb->zsbuf->level])
+ r300->hiz_clear.dirty = TRUE;
+ }
+
+ /* Enable CBZB clear. */
+ if (r300_cbzb_clear_allowed(r300, buffers)) {
+ struct r300_surface *surf = r300_surface(fb->cbufs[0]);
+
+ hyperz->zb_depthclearvalue =
+ r300_depth_clear_cb_value(surf->base.format, rgba);
+
+ width = surf->cbzb_width;
+ height = surf->cbzb_height;
+
+ r300->cbzb_clear = TRUE;
+ r300_mark_fb_state_dirty(r300, R300_CHANGED_CBZB_FLAG);
+ }
+
+ /* Clear. */
+ if (buffers) {
+ /* Clear using the blitter. */
+ r300_blitter_begin(r300, R300_CLEAR);
+ util_blitter_clear(r300->blitter,
+ width,
+ height,
+ fb->nr_cbufs,
+ buffers, rgba, depth, stencil);
+ r300_blitter_end(r300);
+ } else if (r300->zmask_clear.dirty) {
+ /* Just clear zmask and hiz now, this does not use a standard draw
+ * procedure. */
+ unsigned dwords;
+
+ /* Calculate zmask_clear and hiz_clear atom sizes. */
+ r300_update_hyperz_state(r300);
+ dwords = r300->zmask_clear.size +
+ (r300->hiz_clear.dirty ? r300->hiz_clear.size : 0) +
+ r300_get_num_cs_end_dwords(r300);
+
+ /* Reserve CS space. */
+ if (dwords > (r300->cs->ndw - r300->cs->cdw)) {
+ r300->context.flush(&r300->context, 0, NULL);
+ }
+
+ /* Emit clear packets. */
+ r300_emit_zmask_clear(r300, r300->zmask_clear.size,
+ r300->zmask_clear.state);
+ r300->zmask_clear.dirty = FALSE;
+ if (r300->hiz_clear.dirty) {
+ r300_emit_hiz_clear(r300, r300->hiz_clear.size,
+ r300->hiz_clear.state);
+ r300->hiz_clear.dirty = FALSE;
+ }
+ } else {
+ assert(0);
+ }
+
+ /* Disable CBZB clear. */
+ if (r300->cbzb_clear) {
+ r300->cbzb_clear = FALSE;
+ hyperz->zb_depthclearvalue = hyperz_dcv;
+ r300_mark_fb_state_dirty(r300, R300_CHANGED_CBZB_FLAG);
+ }
+
+ /* Enable fastfill and/or hiz.
+ *
+ * If we cleared zmask/hiz, it's in use now. The Hyper-Z state update
+ * looks if zmask/hiz is in use and enables fastfill accordingly. */
+ if (zstex &&
+ (zstex->zmask_in_use[fb->zsbuf->level] ||
+ zstex->hiz_in_use[fb->zsbuf->level])) {
+ r300->hyperz_state.dirty = TRUE;
+ }
}
/* Clear a region of a color surface to a constant value. */
r300_blitter_end(r300);
}
+/* Flush a depth stencil buffer. */
+void r300_flush_depth_stencil(struct pipe_context *pipe,
+ struct pipe_resource *dst,
+ struct pipe_subresource subdst,
+ unsigned zslice)
+{
+ struct r300_context *r300 = r300_context(pipe);
+ struct pipe_surface *dstsurf;
+ struct r300_texture *tex = r300_texture(dst);
+
+ if (!tex->zmask_mem[subdst.level])
+ return;
+ if (!tex->zmask_in_use[subdst.level])
+ return;
+
+ dstsurf = pipe->screen->get_tex_surface(pipe->screen, dst,
+ subdst.face, subdst.level, zslice,
+ PIPE_BIND_DEPTH_STENCIL);
+ r300->z_decomp_rd = TRUE;
+ r300_blitter_begin(r300, R300_CLEAR_SURFACE);
+ util_blitter_flush_depth_stencil(r300->blitter, dstsurf);
+ r300_blitter_end(r300);
+ r300->z_decomp_rd = FALSE;
+
+ tex->zmask_in_use[subdst.level] = FALSE;
+}
+
/* Copy a block of pixels from one surface to another using HW. */
static void r300_hw_copy_region(struct pipe_context* pipe,
struct pipe_resource *dst,
{
enum pipe_format old_format = dst->format;
enum pipe_format new_format = old_format;
-
+ boolean is_depth;
if (!pipe->screen->is_format_supported(pipe->screen,
old_format, src->target,
src->nr_samples,
}
}
+ is_depth = util_format_get_component_bits(src->format, UTIL_FORMAT_COLORSPACE_ZS, 0) != 0;
+ if (is_depth) {
+ r300_flush_depth_stencil(pipe, src, subsrc, srcz);
+ }
if (old_format != new_format) {
- dst->format = new_format;
- src->format = new_format;
-
r300_texture_reinterpret_format(pipe->screen,
dst, new_format);
r300_texture_reinterpret_format(pipe->screen,
src, subsrc, srcx, srcy, srcz, width, height);
if (old_format != new_format) {
- dst->format = old_format;
- src->format = old_format;
-
r300_texture_reinterpret_format(pipe->screen,
dst, old_format);
r300_texture_reinterpret_format(pipe->screen,