#include "r300_context.h"
#include "r300_reg.h"
#include "r300_fs.h"
-#include "r300_winsys.h"
#include "util/u_format.h"
#include "util/u_mm.h"
{
struct r300_dsa_state *dsa = r300->dsa_state.state;
- if (!dsa->dsa.depth.enabled || !dsa->dsa.depth.writemask)
- return HIZ_FUNC_NONE;
-
switch (dsa->dsa.depth.func) {
case PIPE_FUNC_NEVER:
case PIPE_FUNC_EQUAL:
case PIPE_FUNC_NOTEQUAL:
case PIPE_FUNC_ALWAYS:
- return HIZ_FUNC_NONE;
-
+ default:
+ /* Guess MAX for uncertain cases. */
case PIPE_FUNC_LESS:
case PIPE_FUNC_LEQUAL:
return HIZ_FUNC_MAX;
case PIPE_FUNC_GREATER:
case PIPE_FUNC_GEQUAL:
return HIZ_FUNC_MIN;
-
- default:
- assert(0);
- return HIZ_FUNC_NONE;
}
}
s->zfail_op != PIPE_STENCIL_OP_KEEP);
}
-static boolean r300_can_hiz(struct r300_context *r300)
+static boolean r300_hiz_allowed(struct r300_context *r300)
{
struct r300_dsa_state *dsa = r300->dsa_state.state;
struct r300_screen *r300screen = r300->screen;
- /* shader writes depth - no HiZ */
- if (r300_fragment_shader_writes_depth(r300_fs(r300))) /* (5) */
+ if (r300_fragment_shader_writes_depth(r300_fs(r300)))
return FALSE;
if (r300->query_current)
return FALSE;
+ /* If the depth function is inverted, HiZ must be disabled. */
+ if (!r300_is_hiz_func_valid(r300))
+ return FALSE;
+
/* if stencil fail/zfail op is not KEEP */
if (r300_dsa_stencil_op_not_keep(&dsa->dsa.stencil[0]) ||
r300_dsa_stencil_op_not_keep(&dsa->dsa.stencil[1]))
(struct r300_hyperz_state*)r300->hyperz_state.state;
struct pipe_framebuffer_state *fb =
(struct pipe_framebuffer_state*)r300->fb_state.state;
+ struct r300_dsa_state *dsa = r300->dsa_state.state;
struct r300_resource *zstex =
fb->zsbuf ? r300_resource(fb->zsbuf->texture) : NULL;
return;
}
- if (!zstex ||
- !r300->rws->get_value(r300->rws, R300_CAN_HYPERZ))
+ if (!zstex || !r300->hyperz_enabled)
return;
- /* Zbuffer compression. */
- if (r300->zmask_in_use && !r300->hyperz_locked) {
+ /* Set the size of ZMASK tiles. */
+ if (zstex->tex.zcomp8x8[fb->zsbuf->u.tex.level]) {
+ z->gb_z_peq_config |= R300_GB_Z_PEQ_CONFIG_Z_PEQ_SIZE_8_8;
+ }
+
+ /* R500-specific features and optimizations. */
+ if (r300->screen->caps.is_r500) {
+ z->zb_bw_cntl |= R500_PEQ_PACKING_ENABLE |
+ R500_COVERED_PTR_MASKING_ENABLE;
+ }
+
+ /* Setup decompression if needed. No other HyperZ setting is required. */
+ if (r300->zmask_decompress) {
z->zb_bw_cntl |= R300_FAST_FILL_ENABLE |
- /*R300_FORCE_COMPRESSED_STENCIL_VALUE_ENABLE |*/
R300_RD_COMP_ENABLE;
+ return;
+ }
- if (!r300->zmask_decompress) {
- z->zb_bw_cntl |= R300_WR_COMP_ENABLE;
- }
+ /* Do not set anything if depth and stencil tests are off. */
+ if (!dsa->dsa.depth.enabled &&
+ !dsa->dsa.stencil[0].enabled &&
+ !dsa->dsa.stencil[1].enabled) {
+ assert(!dsa->dsa.depth.writemask);
+ return;
}
- if (zstex->tex.zcomp8x8[fb->zsbuf->u.tex.level]) {
- z->gb_z_peq_config |= R300_GB_Z_PEQ_CONFIG_Z_PEQ_SIZE_8_8;
+ /* Zbuffer compression. */
+ if (r300->zmask_in_use && !r300->locked_zbuffer) {
+ z->zb_bw_cntl |= R300_FAST_FILL_ENABLE |
+ R300_RD_COMP_ENABLE |
+ R300_WR_COMP_ENABLE;
}
/* HiZ. */
- if (r300->hiz_in_use && !r300->hyperz_locked) {
+ if (r300->hiz_in_use && !r300->locked_zbuffer) {
+ /* HiZ cannot be used under some circumstances. */
+ if (!r300_hiz_allowed(r300)) {
+ /* If writemask is disabled, the HiZ memory will not be changed,
+ * so we can keep its content for later. */
+ if (dsa->dsa.depth.writemask) {
+ r300->hiz_in_use = FALSE;
+ }
+ return;
+ }
+ DBG(r300, DBG_HYPERZ, "r300: Z-func: %i\n", dsa->dsa.depth.func);
+
/* Set the HiZ function if needed. */
if (r300->hiz_func == HIZ_FUNC_NONE) {
r300->hiz_func = r300_get_hiz_func(r300);
}
- /* If the depth function is inverted, HiZ must be disabled. */
- if (!r300_is_hiz_func_valid(r300)) {
- r300->hiz_in_use = FALSE;
- } else if (r300_can_hiz(r300)) {
- /* Setup the HiZ bits. */
- z->zb_bw_cntl |=
- R300_HIZ_ENABLE |
+ /* Setup the HiZ bits. */
+ z->zb_bw_cntl |= R300_HIZ_ENABLE |
(r300->hiz_func == HIZ_FUNC_MIN ? R300_HIZ_MIN : R300_HIZ_MAX);
- z->sc_hyperz |= R300_SC_HYPERZ_ENABLE |
- r300_get_sc_hz_max(r300);
+ z->sc_hyperz |= R300_SC_HYPERZ_ENABLE |
+ r300_get_sc_hz_max(r300);
- if (r300->screen->caps.is_r500) {
- z->zb_bw_cntl |= R500_HIZ_EQUAL_REJECT_ENABLE;
- }
+ if (r300->screen->caps.is_r500) {
+ z->zb_bw_cntl |= R500_HIZ_EQUAL_REJECT_ENABLE;
}
}
-
- /* R500-specific features and optimizations. */
- if (r300->screen->caps.is_r500) {
- z->zb_bw_cntl |= R500_PEQ_PACKING_ENABLE |
- R500_COVERED_PTR_MASKING_ENABLE;
- }
}
/*****************************************************************************/
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