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-rw-r--r--src/gallium/drivers/cell/common.h2
-rw-r--r--src/gallium/drivers/cell/ppu/cell_clear.c13
-rw-r--r--src/gallium/drivers/cell/ppu/cell_gen_fragment.c153
3 files changed, 80 insertions, 88 deletions
diff --git a/src/gallium/drivers/cell/common.h b/src/gallium/drivers/cell/common.h
index 23fb0b0831..87488ea2d7 100644
--- a/src/gallium/drivers/cell/common.h
+++ b/src/gallium/drivers/cell/common.h
@@ -122,7 +122,7 @@
#define CELL_DEBUG_CACHE (1 << 6)
/** Max instructions for doing per-fragment operations */
-#define SPU_MAX_FRAGMENT_OPS_INSTS 64
+#define SPU_MAX_FRAGMENT_OPS_INSTS 128
diff --git a/src/gallium/drivers/cell/ppu/cell_clear.c b/src/gallium/drivers/cell/ppu/cell_clear.c
index c9c0c721bb..037635e466 100644
--- a/src/gallium/drivers/cell/ppu/cell_clear.c
+++ b/src/gallium/drivers/cell/ppu/cell_clear.c
@@ -106,4 +106,17 @@ cell_clear_surface(struct pipe_context *pipe, struct pipe_surface *ps,
clr->surface = surfIndex;
clr->value = clearValue;
}
+
+ /* Technically, the surface's contents are now known and cleared,
+ * so we could set the status to PIPE_SURFACE_STATUS_CLEAR. But
+ * it turns out it's quite painful to recognize when any particular
+ * surface goes from PIPE_SURFACE_STATUS_CLEAR to
+ * PIPE_SURFACE_STATUS_DEFINED (i.e. with known contents), because
+ * the drawing commands could be operating on numerous draw buffers,
+ * which we'd have to iterate through to set all their stati...
+ * For now, we cheat a bit and set the surface's status to DEFINED
+ * right here. Later we should revisit this and set the status to
+ * CLEAR here, and find a better place to set the status to DEFINED.
+ */
+ ps->status = PIPE_SURFACE_STATUS_DEFINED;
}
diff --git a/src/gallium/drivers/cell/ppu/cell_gen_fragment.c b/src/gallium/drivers/cell/ppu/cell_gen_fragment.c
index 6e2a5d2980..d9c3ff3f4d 100644
--- a/src/gallium/drivers/cell/ppu/cell_gen_fragment.c
+++ b/src/gallium/drivers/cell/ppu/cell_gen_fragment.c
@@ -1997,81 +1997,79 @@ cell_gen_fragment_function(struct cell_context *cell, struct spe_function *f)
* Z and/or stencil. We'll also convert the incoming fragment Z
* value in fragZ_reg from a floating point value in [0.0..1.0] to
* an unsigned integer value with the appropriate resolution.
+ * Note that even if depth or stencil is *not* enabled, if it's
+ * present in the buffer, we pull it out and put it back later;
+ * otherwise, we can inadvertently destroy the contents of
+ * buffers we're not supposed to touch (e.g., if the user is
+ * clearing the depth buffer but not the stencil buffer, a
+ * quad of constant depth is drawn over the surface; the stencil
+ * buffer must be maintained).
*/
switch(zs_format) {
case PIPE_FORMAT_S8Z24_UNORM: /* fall through */
case PIPE_FORMAT_X8Z24_UNORM:
- if (dsa->depth.enabled) {
- /* We need the Z part at least */
- setup_optional_register(f, &fbZ_reg_set, &fbZ_reg);
- /* four 24-bit Z values in the low-order bits */
- spe_and_uint(f, fbZ_reg, fbZS_reg, 0x00ffffff);
-
- /* Incoming fragZ_reg value is a float in 0.0...1.0; convert
- * to a 24-bit unsigned integer
- */
- spe_cfltu(f, fragZ_reg, fragZ_reg, 32);
- spe_rotmi(f, fragZ_reg, fragZ_reg, -8);
- }
- if (dsa->stencil[0].enabled) {
- setup_optional_register(f, &fbS_reg_set, &fbS_reg);
- /* four 8-bit Z values in the high-order bits */
- spe_rotmi(f, fbS_reg, fbZS_reg, -24);
- }
- break;
+ /* Pull out both Z and stencil */
+ setup_optional_register(f, &fbZ_reg_set, &fbZ_reg);
+ setup_optional_register(f, &fbS_reg_set, &fbS_reg);
+
+ /* four 24-bit Z values in the low-order bits */
+ spe_and_uint(f, fbZ_reg, fbZS_reg, 0x00ffffff);
+
+ /* Incoming fragZ_reg value is a float in 0.0...1.0; convert
+ * to a 24-bit unsigned integer
+ */
+ spe_cfltu(f, fragZ_reg, fragZ_reg, 32);
+ spe_rotmi(f, fragZ_reg, fragZ_reg, -8);
+
+ /* four 8-bit stencil values in the high-order bits */
+ spe_rotmi(f, fbS_reg, fbZS_reg, -24);
+ break;
case PIPE_FORMAT_Z24S8_UNORM: /* fall through */
case PIPE_FORMAT_Z24X8_UNORM:
- if (dsa->depth.enabled) {
- setup_optional_register(f, &fbZ_reg_set, &fbZ_reg);
- /* shift by 8 to get the upper 24-bit values */
- spe_rotmi(f, fbS_reg, fbZS_reg, -8);
-
- /* Incoming fragZ_reg value is a float in 0.0...1.0; convert
- * to a 24-bit unsigned integer
- */
- spe_cfltu(f, fragZ_reg, fragZ_reg, 32);
- spe_rotmi(f, fragZ_reg, fragZ_reg, -8);
- }
- if (dsa->stencil[0].enabled) {
- setup_optional_register(f, &fbS_reg_set, &fbS_reg);
- /* 8-bit stencil in the low-order bits - mask them out */
- spe_and_uint(f, fbS_reg, fbZS_reg, 0x000000ff);
- }
- break;
+ setup_optional_register(f, &fbZ_reg_set, &fbZ_reg);
+ setup_optional_register(f, &fbS_reg_set, &fbS_reg);
+
+ /* shift by 8 to get the upper 24-bit values */
+ spe_rotmi(f, fbS_reg, fbZS_reg, -8);
+
+ /* Incoming fragZ_reg value is a float in 0.0...1.0; convert
+ * to a 24-bit unsigned integer
+ */
+ spe_cfltu(f, fragZ_reg, fragZ_reg, 32);
+ spe_rotmi(f, fragZ_reg, fragZ_reg, -8);
+
+ /* 8-bit stencil in the low-order bits - mask them out */
+ spe_and_uint(f, fbS_reg, fbZS_reg, 0x000000ff);
+ break;
case PIPE_FORMAT_Z32_UNORM:
- if (dsa->depth.enabled) {
- setup_optional_register(f, &fbZ_reg_set, &fbZ_reg);
- /* Copy over 4 32-bit values */
- spe_move(f, fbZ_reg, fbZS_reg);
-
- /* Incoming fragZ_reg value is a float in 0.0...1.0; convert
- * to a 32-bit unsigned integer
- */
- spe_cfltu(f, fragZ_reg, fragZ_reg, 32);
- }
+ setup_optional_register(f, &fbZ_reg_set, &fbZ_reg);
+ /* Copy over 4 32-bit values */
+ spe_move(f, fbZ_reg, fbZS_reg);
+
+ /* Incoming fragZ_reg value is a float in 0.0...1.0; convert
+ * to a 32-bit unsigned integer
+ */
+ spe_cfltu(f, fragZ_reg, fragZ_reg, 32);
/* No stencil, so can't do anything there */
- break;
+ break;
case PIPE_FORMAT_Z16_UNORM:
- if (dsa->depth.enabled) {
- /* XXX Not sure this is correct, but it was here before, so we're
- * going with it for now
- */
- setup_optional_register(f, &fbZ_reg_set, &fbZ_reg);
- /* Copy over 4 32-bit values */
- spe_move(f, fbZ_reg, fbZS_reg);
-
- /* Incoming fragZ_reg value is a float in 0.0...1.0; convert
- * to a 16-bit unsigned integer
- */
- spe_cfltu(f, fragZ_reg, fragZ_reg, 32);
- spe_rotmi(f, fragZ_reg, fragZ_reg, -16);
- }
+ /* XXX Not sure this is correct, but it was here before, so we're
+ * going with it for now
+ */
+ setup_optional_register(f, &fbZ_reg_set, &fbZ_reg);
+ /* Copy over 4 32-bit values */
+ spe_move(f, fbZ_reg, fbZS_reg);
+
+ /* Incoming fragZ_reg value is a float in 0.0...1.0; convert
+ * to a 16-bit unsigned integer
+ */
+ spe_cfltu(f, fragZ_reg, fragZ_reg, 32);
+ spe_rotmi(f, fragZ_reg, fragZ_reg, -16);
/* No stencil */
- break;
default:
ASSERT(0); /* invalid format */
@@ -2118,39 +2116,19 @@ cell_gen_fragment_function(struct cell_context *cell, struct spe_function *f)
spe_comment(f, 0, "Store quad's depth/stencil values in tile");
if (zs_format == PIPE_FORMAT_S8Z24_UNORM ||
zs_format == PIPE_FORMAT_X8Z24_UNORM) {
- if (fbS_reg_set && fbZ_reg_set) {
- spe_shli(f, fbS_reg, fbS_reg, 24); /* fbS = fbS << 24 */
- spe_or(f, fbZS_reg, fbS_reg, fbZ_reg); /* fbZS = fbS | fbZ */
- }
- else if (fbS_reg_set) {
- spe_shli(f, fbZS_reg, fbS_reg, 24); /* fbS = fbS << 24 */
- }
- else {
- spe_move(f, fbZS_reg, fbZ_reg);
- }
+ spe_shli(f, fbS_reg, fbS_reg, 24); /* fbS = fbS << 24 */
+ spe_or(f, fbZS_reg, fbS_reg, fbZ_reg); /* fbZS = fbS | fbZ */
}
else if (zs_format == PIPE_FORMAT_Z24S8_UNORM ||
zs_format == PIPE_FORMAT_Z24X8_UNORM) {
- if (fbS_reg_set && fbZ_reg_set) {
- spe_shli(f, fbZ_reg, fbZ_reg, 8); /* fbZ = fbZ << 8 */
- spe_or(f, fbZS_reg, fbS_reg, fbZ_reg); /* fbZS = fbS | fbZ */
- }
- else if (fbS_reg_set) {
- spe_move(f, fbZS_reg, fbS_reg);
- }
- else {
- spe_shli(f, fbZ_reg, fbZ_reg, 8); /* fbZ = fbZ << 8 */
- }
+ spe_shli(f, fbZ_reg, fbZ_reg, 8); /* fbZ = fbZ << 8 */
+ spe_or(f, fbZS_reg, fbS_reg, fbZ_reg); /* fbZS = fbS | fbZ */
}
else if (zs_format == PIPE_FORMAT_Z32_UNORM) {
- if (fbZ_reg_set) {
- spe_move(f, fbZS_reg, fbZ_reg); /* fbZS = fbZ */
- }
+ spe_move(f, fbZS_reg, fbZ_reg); /* fbZS = fbZ */
}
else if (zs_format == PIPE_FORMAT_Z16_UNORM) {
- if (fbZ_reg_set) {
- spe_move(f, fbZS_reg, fbZ_reg); /* fbZS = fbZ */
- }
+ spe_move(f, fbZS_reg, fbZ_reg); /* fbZS = fbZ */
}
else if (zs_format == PIPE_FORMAT_S8_UNORM) {
ASSERT(0); /* XXX to do */
@@ -2163,6 +2141,7 @@ cell_gen_fragment_function(struct cell_context *cell, struct spe_function *f)
spe_stqx(f, fbZS_reg, depth_tile_reg, quad_offset_reg);
}
+ /* Don't need these any more */
release_optional_register(f, &fbZ_reg_set, fbZ_reg);
release_optional_register(f, &fbS_reg_set, fbS_reg);
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-05 01:12:29 +0000