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-rw-r--r--src/mesa/pipe/softpipe/Makefile1
-rw-r--r--src/mesa/pipe/softpipe/sp_context.c2
-rw-r--r--src/mesa/pipe/softpipe/sp_context.h1
-rw-r--r--src/mesa/pipe/softpipe/sp_quad.c70
-rw-r--r--src/mesa/pipe/softpipe/sp_quad.h1
-rw-r--r--src/mesa/pipe/softpipe/sp_quad_earlyz.c100
6 files changed, 150 insertions, 25 deletions
diff --git a/src/mesa/pipe/softpipe/Makefile b/src/mesa/pipe/softpipe/Makefile
index 2cbd9e5b51..59628531cc 100644
--- a/src/mesa/pipe/softpipe/Makefile
+++ b/src/mesa/pipe/softpipe/Makefile
@@ -18,6 +18,7 @@ DRIVER_SOURCES = \
sp_quad_colormask.c \
sp_quad_coverage.c \
sp_quad_depth_test.c \
+ sp_quad_earlyz.c \
sp_quad_fs.c \
sp_quad_occlusion.c \
sp_quad_output.c \
diff --git a/src/mesa/pipe/softpipe/sp_context.c b/src/mesa/pipe/softpipe/sp_context.c
index be4da0ec64..d5e68c189d 100644
--- a/src/mesa/pipe/softpipe/sp_context.c
+++ b/src/mesa/pipe/softpipe/sp_context.c
@@ -161,6 +161,7 @@ static void softpipe_destroy( struct pipe_context *pipe )
draw_destroy( softpipe->draw );
softpipe->quad.polygon_stipple->destroy( softpipe->quad.polygon_stipple );
+ softpipe->quad.earlyz->destroy( softpipe->quad.earlyz );
softpipe->quad.shade->destroy( softpipe->quad.shade );
softpipe->quad.alpha_test->destroy( softpipe->quad.alpha_test );
softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
@@ -369,6 +370,7 @@ struct pipe_context *softpipe_create( struct pipe_winsys *pipe_winsys,
/* setup quad rendering stages */
softpipe->quad.polygon_stipple = sp_quad_polygon_stipple_stage(softpipe);
+ softpipe->quad.earlyz = sp_quad_earlyz_stage(softpipe);
softpipe->quad.shade = sp_quad_shade_stage(softpipe);
softpipe->quad.alpha_test = sp_quad_alpha_test_stage(softpipe);
softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
diff --git a/src/mesa/pipe/softpipe/sp_context.h b/src/mesa/pipe/softpipe/sp_context.h
index a411969bc0..872766101d 100644
--- a/src/mesa/pipe/softpipe/sp_context.h
+++ b/src/mesa/pipe/softpipe/sp_context.h
@@ -134,6 +134,7 @@ struct softpipe_context {
/** Software quad rendering pipeline */
struct {
struct quad_stage *polygon_stipple;
+ struct quad_stage *earlyz;
struct quad_stage *shade;
struct quad_stage *alpha_test;
struct quad_stage *stencil_test;
diff --git a/src/mesa/pipe/softpipe/sp_quad.c b/src/mesa/pipe/softpipe/sp_quad.c
index 429497e9b2..5a0df6de9d 100644
--- a/src/mesa/pipe/softpipe/sp_quad.c
+++ b/src/mesa/pipe/softpipe/sp_quad.c
@@ -28,24 +28,52 @@
#include "sp_context.h"
+#include "sp_state.h"
+#include "pipe/tgsi/exec/tgsi_token.h"
+static void
+sp_push_quad_first(
+ struct softpipe_context *sp,
+ struct quad_stage *quad )
+{
+ quad->next = sp->quad.first;
+ sp->quad.first = quad;
+}
+
+static void
+sp_build_depth_stencil(
+ struct softpipe_context *sp )
+{
+ if (sp->depth_stencil->stencil.front_enabled ||
+ sp->depth_stencil->stencil.back_enabled) {
+ sp_push_quad_first( sp, sp->quad.stencil_test );
+ }
+ else if (sp->depth_stencil->depth.enabled &&
+ sp->framebuffer.zbuf) {
+ sp_push_quad_first( sp, sp->quad.depth_test );
+ }
+}
void
sp_build_quad_pipeline(struct softpipe_context *sp)
{
+ boolean early_depth_test =
+ sp->depth_stencil->depth.enabled &&
+ sp->framebuffer.zbuf &&
+ !sp->alpha_test->enabled &&
+ sp->fs->shader.output_semantic_name[0] != TGSI_SEMANTIC_POSITION;
+
/* build up the pipeline in reverse order... */
sp->quad.first = sp->quad.output;
if (sp->blend->colormask != 0xf) {
- sp->quad.colormask->next = sp->quad.first;
- sp->quad.first = sp->quad.colormask;
+ sp_push_quad_first( sp, sp->quad.colormask );
}
if (sp->blend->blend_enable ||
sp->blend->logicop_enable) {
- sp->quad.blend->next = sp->quad.first;
- sp->quad.first = sp->quad.blend;
+ sp_push_quad_first( sp, sp->quad.blend );
}
if (sp->framebuffer.num_cbufs == 1) {
@@ -54,46 +82,38 @@ sp_build_quad_pipeline(struct softpipe_context *sp)
}
else {
/* insert bufloop stage */
- sp->quad.bufloop->next = sp->quad.first;
- sp->quad.first = sp->quad.bufloop;
+ sp_push_quad_first( sp, sp->quad.bufloop );
}
if (sp->depth_stencil->depth.occlusion_count) {
- sp->quad.occlusion->next = sp->quad.first;
- sp->quad.first = sp->quad.occlusion;
+ sp_push_quad_first( sp, sp->quad.occlusion );
}
if (sp->rasterizer->poly_smooth ||
sp->rasterizer->line_smooth ||
sp->rasterizer->point_smooth) {
- sp->quad.coverage->next = sp->quad.first;
- sp->quad.first = sp->quad.coverage;
+ sp_push_quad_first( sp, sp->quad.coverage );
}
- if ( sp->depth_stencil->stencil.front_enabled
- || sp->depth_stencil->stencil.back_enabled) {
- sp->quad.stencil_test->next = sp->quad.first;
- sp->quad.first = sp->quad.stencil_test;
- }
- else if (sp->depth_stencil->depth.enabled &&
- sp->framebuffer.zbuf) {
- sp->quad.depth_test->next = sp->quad.first;
- sp->quad.first = sp->quad.depth_test;
+ if (!early_depth_test) {
+ sp_build_depth_stencil( sp );
}
if (sp->alpha_test->enabled) {
- sp->quad.alpha_test->next = sp->quad.first;
- sp->quad.first = sp->quad.alpha_test;
+ sp_push_quad_first( sp, sp->quad.alpha_test );
}
/* XXX always enable shader? */
if (1) {
- sp->quad.shade->next = sp->quad.first;
- sp->quad.first = sp->quad.shade;
+ sp_push_quad_first( sp, sp->quad.shade );
+ }
+
+ if (early_depth_test) {
+ sp_build_depth_stencil( sp );
+ sp_push_quad_first( sp, sp->quad.earlyz );
}
if (sp->rasterizer->poly_stipple_enable) {
- sp->quad.polygon_stipple->next = sp->quad.first;
- sp->quad.first = sp->quad.polygon_stipple;
+ sp_push_quad_first( sp, sp->quad.polygon_stipple );
}
}
diff --git a/src/mesa/pipe/softpipe/sp_quad.h b/src/mesa/pipe/softpipe/sp_quad.h
index 534541122b..f1e0281764 100644
--- a/src/mesa/pipe/softpipe/sp_quad.h
+++ b/src/mesa/pipe/softpipe/sp_quad.h
@@ -51,6 +51,7 @@ struct quad_stage {
struct quad_stage *sp_quad_polygon_stipple_stage( struct softpipe_context *softpipe );
+struct quad_stage *sp_quad_earlyz_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_shade_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_alpha_test_stage( struct softpipe_context *softpipe );
struct quad_stage *sp_quad_stencil_test_stage( struct softpipe_context *softpipe );
diff --git a/src/mesa/pipe/softpipe/sp_quad_earlyz.c b/src/mesa/pipe/softpipe/sp_quad_earlyz.c
new file mode 100644
index 0000000000..7e0b37519c
--- /dev/null
+++ b/src/mesa/pipe/softpipe/sp_quad_earlyz.c
@@ -0,0 +1,100 @@
+/**************************************************************************
+ *
+ * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * \brief Quad early-z testing
+ */
+
+#include "pipe/p_defines.h"
+#include "pipe/p_util.h"
+#include "sp_context.h"
+#include "sp_headers.h"
+#include "sp_surface.h"
+#include "sp_quad.h"
+#include "sp_tile_cache.h"
+
+static void
+earlyz_quad(
+ struct quad_stage *qs,
+ struct quad_header *quad )
+{
+ uint i;
+ const float fx = (float) quad->x0;
+ const float fy = (float) quad->y0;
+ float xy[4][2];
+
+ xy[0][0] = fx;
+ xy[1][0] = fx + 1.0f;
+ xy[2][0] = fx;
+ xy[3][0] = fx + 1.0f;
+
+ xy[0][1] = fy;
+ xy[1][1] = fy;
+ xy[2][1] = fy + 1.0f;
+ xy[3][1] = fy + 1.0f;
+
+ for (i = 0; i < QUAD_SIZE; i++) {
+ quad->outputs.depth[i] =
+ quad->coef[0].a0[2] +
+ quad->coef[0].dadx[2] * xy[i][0] +
+ quad->coef[0].dady[2] * xy[i][1];
+ }
+
+ if (qs->next) {
+ qs->next->run( qs->next, quad );
+ }
+}
+
+static void
+earlyz_begin(
+ struct quad_stage *qs )
+{
+ if (qs->next) {
+ qs->next->begin( qs->next );
+ }
+}
+
+static void
+earlyz_destroy(
+ struct quad_stage *qs )
+{
+ FREE( qs );
+}
+
+struct quad_stage *
+sp_quad_earlyz_stage(
+ struct softpipe_context *softpipe )
+{
+ struct quad_stage *stage = CALLOC_STRUCT( quad_stage );
+
+ stage->softpipe = softpipe;
+ stage->begin = earlyz_begin;
+ stage->run = earlyz_quad;
+ stage->destroy = earlyz_destroy;
+
+ return stage;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-17 04:52:48 +0000