Mesa (gallium-llvmpipe): llvmpipe: Generate the fragment pipeline into a single function.
Jose Fonseca
jrfonseca at kemper.freedesktop.org
Sat Aug 22 11:40:44 UTC 2009
Module: Mesa
Branch: gallium-llvmpipe
Commit: 8f515f2230e6a2fa5f35866d7e4749f65df76dcd
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=8f515f2230e6a2fa5f35866d7e4749f65df76dcd
Author: José Fonseca <jfonseca at vmware.com>
Date: Sat Aug 22 12:39:44 2009 +0100
llvmpipe: Generate the fragment pipeline into a single function.
Still hackish. Will document and optimize later.
---
src/gallium/drivers/llvmpipe/Makefile | 1 -
src/gallium/drivers/llvmpipe/SConscript | 1 -
src/gallium/drivers/llvmpipe/lp_bld_flow.c | 3 +
src/gallium/drivers/llvmpipe/lp_context.c | 2 -
src/gallium/drivers/llvmpipe/lp_context.h | 1 -
src/gallium/drivers/llvmpipe/lp_quad.h | 1 -
src/gallium/drivers/llvmpipe/lp_quad_blend.c | 132 --------
src/gallium/drivers/llvmpipe/lp_quad_fs.c | 105 ++----
src/gallium/drivers/llvmpipe/lp_quad_pipe.c | 13 +-
src/gallium/drivers/llvmpipe/lp_quad_pipe.h | 7 -
src/gallium/drivers/llvmpipe/lp_state.h | 1 +
src/gallium/drivers/llvmpipe/lp_state_derived.c | 5 +-
src/gallium/drivers/llvmpipe/lp_state_fs.c | 394 ++++++++++++++++-------
13 files changed, 327 insertions(+), 339 deletions(-)
diff --git a/src/gallium/drivers/llvmpipe/Makefile b/src/gallium/drivers/llvmpipe/Makefile
index fbd1300..fb77f2a 100644
--- a/src/gallium/drivers/llvmpipe/Makefile
+++ b/src/gallium/drivers/llvmpipe/Makefile
@@ -30,7 +30,6 @@ C_SOURCES = \
lp_prim_setup.c \
lp_prim_vbuf.c \
lp_setup.c \
- lp_quad_blend.c \
lp_quad_pipe.c \
lp_quad_fs.c \
lp_query.c \
diff --git a/src/gallium/drivers/llvmpipe/SConscript b/src/gallium/drivers/llvmpipe/SConscript
index 614d92b..f9c09f7 100644
--- a/src/gallium/drivers/llvmpipe/SConscript
+++ b/src/gallium/drivers/llvmpipe/SConscript
@@ -34,7 +34,6 @@ llvmpipe = env.ConvenienceLibrary(
'lp_prim_setup.c',
'lp_prim_vbuf.c',
'lp_setup.c',
- 'lp_quad_blend.c',
'lp_quad_pipe.c',
'lp_quad_fs.c',
'lp_query.c',
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_flow.c b/src/gallium/drivers/llvmpipe/lp_bld_flow.c
index d94af0d..9d99e1a 100644
--- a/src/gallium/drivers/llvmpipe/lp_bld_flow.c
+++ b/src/gallium/drivers/llvmpipe/lp_bld_flow.c
@@ -66,6 +66,8 @@ lp_build_mask_update(struct lp_build_mask_context *mask,
else
mask->value = value;
+ /* FIXME: disabled until we have proper control flow helpers */
+#if 0
cond = LLVMBuildICmp(mask->builder,
LLVMIntEQ,
LLVMBuildBitCast(mask->builder, mask->value, mask->reg_type, ""),
@@ -95,6 +97,7 @@ lp_build_mask_update(struct lp_build_mask_context *mask,
LLVMBuildCondBr(mask->builder, cond, mask->skip_block, new_block);
LLVMPositionBuilderAtEnd(mask->builder, new_block);
+#endif
}
diff --git a/src/gallium/drivers/llvmpipe/lp_context.c b/src/gallium/drivers/llvmpipe/lp_context.c
index 39019ab..b9fd681 100644
--- a/src/gallium/drivers/llvmpipe/lp_context.c
+++ b/src/gallium/drivers/llvmpipe/lp_context.c
@@ -86,7 +86,6 @@ static void llvmpipe_destroy( struct pipe_context *pipe )
draw_destroy( llvmpipe->draw );
llvmpipe->quad.shade->destroy( llvmpipe->quad.shade );
- llvmpipe->quad.blend->destroy( llvmpipe->quad.blend );
for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
lp_destroy_tile_cache(llvmpipe->cbuf_cache[i]);
@@ -217,7 +216,6 @@ llvmpipe_create( struct pipe_screen *screen )
/* setup quad rendering stages */
llvmpipe->quad.shade = lp_quad_shade_stage(llvmpipe);
- llvmpipe->quad.blend = lp_quad_blend_stage(llvmpipe);
/* vertex shader samplers */
for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
diff --git a/src/gallium/drivers/llvmpipe/lp_context.h b/src/gallium/drivers/llvmpipe/lp_context.h
index c31df0b..9de21d0 100644
--- a/src/gallium/drivers/llvmpipe/lp_context.h
+++ b/src/gallium/drivers/llvmpipe/lp_context.h
@@ -117,7 +117,6 @@ struct llvmpipe_context {
/** Software quad rendering pipeline */
struct {
struct quad_stage *shade;
- struct quad_stage *blend;
struct quad_stage *first; /**< points to one of the above stages */
} quad;
diff --git a/src/gallium/drivers/llvmpipe/lp_quad.h b/src/gallium/drivers/llvmpipe/lp_quad.h
index 0902716..7eb05de 100644
--- a/src/gallium/drivers/llvmpipe/lp_quad.h
+++ b/src/gallium/drivers/llvmpipe/lp_quad.h
@@ -105,7 +105,6 @@ struct quad_interp_coef
struct quad_header {
struct quad_header_input input;
struct quad_header_inout inout;
- struct quad_header_output output;
/* Redundant/duplicated:
*/
diff --git a/src/gallium/drivers/llvmpipe/lp_quad_blend.c b/src/gallium/drivers/llvmpipe/lp_quad_blend.c
deleted file mode 100644
index ba12322..0000000
--- a/src/gallium/drivers/llvmpipe/lp_quad_blend.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/**************************************************************************
- *
- * 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.
- *
- **************************************************************************/
-
-/**
- * Quad blending.
- *
- * @author Jose Fonseca <jfonseca at vmware.com>
- * @author Brian Paul
- */
-
-#include "pipe/p_defines.h"
-#include "util/u_math.h"
-#include "util/u_memory.h"
-#include "util/u_debug_dump.h"
-#include "lp_context.h"
-#include "lp_state.h"
-#include "lp_quad.h"
-#include "lp_surface.h"
-#include "lp_tile_cache.h"
-#include "lp_tile_soa.h"
-#include "lp_quad_pipe.h"
-
-
-static void blend_begin(struct quad_stage *qs)
-{
-}
-
-
-static void
-blend_run(struct quad_stage *qs,
- struct quad_header *quads[],
- unsigned nr)
-{
- struct llvmpipe_context *llvmpipe = qs->llvmpipe;
- struct lp_blend_state *blend = llvmpipe->blend;
- unsigned cbuf;
- uint q, i, j;
-
- for (cbuf = 0; cbuf < llvmpipe->framebuffer.nr_cbufs; cbuf++)
- {
- unsigned x0 = quads[0]->input.x0;
- unsigned y0 = quads[0]->input.y0;
- uint8_t ALIGN16_ATTRIB src[NUM_CHANNELS][TILE_VECTOR_HEIGHT*TILE_VECTOR_WIDTH];
- uint8_t ALIGN16_ATTRIB mask[16];
- uint8_t *tile = lp_get_cached_tile(llvmpipe->cbuf_cache[cbuf], x0, y0);
- uint8_t *dst;
-
- assert(nr * QUAD_SIZE == TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH);
-
- assert(x0 % TILE_VECTOR_WIDTH == 0);
- assert(y0 % TILE_VECTOR_HEIGHT == 0);
-
- dst = &TILE_PIXEL(tile, x0 & (TILE_SIZE-1), y0 & (TILE_SIZE-1), 0);
-
- for (q = 0; q < nr; ++q) {
- struct quad_header *quad = quads[q];
- const int itx = (quad->input.x0 & (TILE_SIZE-1));
- const int ity = (quad->input.y0 & (TILE_SIZE-1));
-
- assert(quad->input.x0 == x0 + q*2);
- assert(quad->input.y0 == y0);
-
- /* get/swizzle src/dest colors
- */
- for (j = 0; j < QUAD_SIZE; j++) {
- int x = itx + (j & 1);
- int y = ity + (j >> 1);
-
- assert(x < TILE_SIZE);
- assert(y < TILE_SIZE);
-
- for (i = 0; i < 4; i++) {
- src[i][4*q + j] = float_to_ubyte(quad->output.color[cbuf][i][j]);
- }
- mask[4*q + j] = quad->inout.mask & (1 << j) ? ~0 : 0;
- }
- }
-
- assert(blend->jit_function);
- assert((((uintptr_t)src) & 0xf) == 0);
- assert((((uintptr_t)dst) & 0xf) == 0);
- assert((((uintptr_t)llvmpipe->blend_color) & 0xf) == 0);
- if(blend->jit_function)
- blend->jit_function( mask,
- &src[0][0],
- &llvmpipe->blend_color[0][0],
- dst );
- }
-}
-
-
-static void blend_destroy(struct quad_stage *qs)
-{
- FREE( qs );
-}
-
-
-struct quad_stage *lp_quad_blend_stage( struct llvmpipe_context *llvmpipe )
-{
- struct quad_stage *stage = CALLOC_STRUCT(quad_stage);
-
- stage->llvmpipe = llvmpipe;
- stage->begin = blend_begin;
- stage->run = blend_run;
- stage->destroy = blend_destroy;
-
- return stage;
-}
diff --git a/src/gallium/drivers/llvmpipe/lp_quad_fs.c b/src/gallium/drivers/llvmpipe/lp_quad_fs.c
index 4f7a061..9ead086 100644
--- a/src/gallium/drivers/llvmpipe/lp_quad_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_quad_fs.c
@@ -46,6 +46,8 @@
#include "lp_quad.h"
#include "lp_quad_pipe.h"
#include "lp_texture.h"
+#include "lp_tile_cache.h"
+#include "lp_tile_soa.h"
struct quad_shade_stage
@@ -69,30 +71,48 @@ quad_shade_stage(struct quad_stage *qs)
/**
* Execute fragment shader for the four fragments in the quad.
*/
-static boolean
-shade_quad(struct quad_stage *qs, struct quad_header *quad)
+static void
+shade_quads(struct quad_stage *qs,
+ struct quad_header *quads[],
+ unsigned nr)
{
struct quad_shade_stage *qss = quad_shade_stage( qs );
struct llvmpipe_context *llvmpipe = qs->llvmpipe;
struct lp_fragment_shader *fs = llvmpipe->fs;
void *constants;
struct tgsi_sampler **samplers;
+ struct quad_header *quad = quads[0];
const unsigned x = quad->input.x0;
const unsigned y = quad->input.y0;
+ uint8_t *tile = lp_get_cached_tile(llvmpipe->cbuf_cache[0], x, y);
+ uint8_t *color;
void *depth;
- uint32_t ALIGN16_ATTRIB mask[NUM_CHANNELS];
+ uint32_t ALIGN16_ATTRIB mask[4][NUM_CHANNELS];
unsigned chan_index;
+ unsigned q;
assert(fs->current);
if(!fs->current)
- return FALSE;
+ return;
+
+ /* Sanity checks */
+ assert(nr * QUAD_SIZE == TILE_VECTOR_HEIGHT * TILE_VECTOR_WIDTH);
+ assert(x % TILE_VECTOR_WIDTH == 0);
+ assert(y % TILE_VECTOR_HEIGHT == 0);
+ for (q = 0; q < nr; ++q) {
+ assert(quads[q]->input.x0 == x + q*2);
+ assert(quads[q]->input.y0 == y);
+ }
- constants = llvmpipe->mapped_constants[PIPE_SHADER_FRAGMENT];
- samplers = (struct tgsi_sampler **)llvmpipe->tgsi.frag_samplers_list;
+ /* mask */
+ for (q = 0; q < 4; ++q)
+ for (chan_index = 0; chan_index < NUM_CHANNELS; ++chan_index)
+ mask[q][chan_index] = quads[q]->inout.mask & (1 << chan_index) ? ~0 : 0;
- for (chan_index = 0; chan_index < NUM_CHANNELS; ++chan_index)
- mask[chan_index] = quad->inout.mask & (1 << chan_index) ? ~0 : 0;
+ /* color buffer */
+ color = &TILE_PIXEL(tile, x & (TILE_SIZE-1), y & (TILE_SIZE-1), 0);
+ /* depth buffer */
if(qss->map) {
assert((x % 2) == 0);
assert((y % 2) == 0);
@@ -103,9 +123,14 @@ shade_quad(struct quad_stage *qs, struct quad_header *quad)
else
depth = NULL;
+ constants = llvmpipe->mapped_constants[PIPE_SHADER_FRAGMENT];
+ samplers = (struct tgsi_sampler **)llvmpipe->tgsi.frag_samplers_list;
+ /* TODO: blend color */
+
assert((((uintptr_t)mask) & 0xf) == 0);
- assert((((uintptr_t)quad->output.color) & 0xf) == 0);
assert((((uintptr_t)depth) & 0xf) == 0);
+ assert((((uintptr_t)color) & 0xf) == 0);
+ assert((((uintptr_t)llvmpipe->blend_color) & 0xf) == 0);
/* run shader */
fs->current->jit_function( x,
@@ -114,71 +139,14 @@ shade_quad(struct quad_stage *qs, struct quad_header *quad)
quad->coef->dadx,
quad->coef->dady,
constants,
- mask,
- quad->output.color,
+ &mask[0][0],
+ color,
depth,
samplers);
-
- for (chan_index = 0; chan_index < NUM_CHANNELS; ++chan_index)
- if(!mask[chan_index])
- quad->inout.mask &= ~(1 << chan_index);
-
- if (quad->inout.mask == 0)
- return FALSE;
-
- return TRUE;
-}
-
-
-
-static void
-coverage_quad(struct quad_stage *qs, struct quad_header *quad)
-{
- struct llvmpipe_context *llvmpipe = qs->llvmpipe;
- uint cbuf;
-
- /* loop over colorbuffer outputs */
- for (cbuf = 0; cbuf < llvmpipe->framebuffer.nr_cbufs; cbuf++) {
- float (*quadColor)[4] = quad->output.color[cbuf];
- unsigned j;
- for (j = 0; j < QUAD_SIZE; j++) {
- assert(quad->input.coverage[j] >= 0.0);
- assert(quad->input.coverage[j] <= 1.0);
- quadColor[3][j] *= quad->input.coverage[j];
- }
- }
}
-static void
-shade_quads(struct quad_stage *qs,
- struct quad_header *quads[],
- unsigned nr)
-{
- unsigned i, pass = 0;
-
- for (i = 0; i < nr; i++) {
- if(!quads[i]->inout.mask)
- continue;
-
- if (!shade_quad(qs, quads[i]))
- continue;
-
- if (/*do_coverage*/ 0)
- coverage_quad( qs, quads[i] );
-
- ++pass;
- }
-
- if (pass)
- qs->next->run(qs->next, quads, nr);
-}
-
-
-
-
-
/**
* Per-primitive (or per-begin?) setup
*/
@@ -210,7 +178,6 @@ shade_begin(struct quad_stage *qs)
}
- qs->next->begin(qs->next);
}
diff --git a/src/gallium/drivers/llvmpipe/lp_quad_pipe.c b/src/gallium/drivers/llvmpipe/lp_quad_pipe.c
index 70d3ad3..e672dc9 100644
--- a/src/gallium/drivers/llvmpipe/lp_quad_pipe.c
+++ b/src/gallium/drivers/llvmpipe/lp_quad_pipe.c
@@ -30,20 +30,9 @@
#include "lp_state.h"
#include "pipe/p_shader_tokens.h"
-static void
-lp_push_quad_first( struct llvmpipe_context *lp,
- struct quad_stage *quad )
-{
- quad->next = lp->quad.first;
- lp->quad.first = quad;
-}
-
-
void
lp_build_quad_pipeline(struct llvmpipe_context *lp)
{
- lp->quad.first = lp->quad.blend;
-
- lp_push_quad_first( lp, lp->quad.shade );
+ lp->quad.first = lp->quad.shade;
}
diff --git a/src/gallium/drivers/llvmpipe/lp_quad_pipe.h b/src/gallium/drivers/llvmpipe/lp_quad_pipe.h
index 52d4d68..ff4747f 100644
--- a/src/gallium/drivers/llvmpipe/lp_quad_pipe.h
+++ b/src/gallium/drivers/llvmpipe/lp_quad_pipe.h
@@ -55,14 +55,7 @@ struct quad_stage {
};
-struct quad_stage *lp_quad_polygon_stipple_stage( struct llvmpipe_context *llvmpipe );
-struct quad_stage *lp_quad_earlyz_stage( struct llvmpipe_context *llvmpipe );
struct quad_stage *lp_quad_shade_stage( struct llvmpipe_context *llvmpipe );
-struct quad_stage *lp_quad_stencil_test_stage( struct llvmpipe_context *llvmpipe );
-struct quad_stage *lp_quad_occlusion_stage( struct llvmpipe_context *llvmpipe );
-struct quad_stage *lp_quad_coverage_stage( struct llvmpipe_context *llvmpipe );
-struct quad_stage *lp_quad_blend_stage( struct llvmpipe_context *llvmpipe );
-struct quad_stage *lp_quad_output_stage( struct llvmpipe_context *llvmpipe );
void lp_build_quad_pipeline(struct llvmpipe_context *lp);
diff --git a/src/gallium/drivers/llvmpipe/lp_state.h b/src/gallium/drivers/llvmpipe/lp_state.h
index 2d6add8..83dace3 100644
--- a/src/gallium/drivers/llvmpipe/lp_state.h
+++ b/src/gallium/drivers/llvmpipe/lp_state.h
@@ -78,6 +78,7 @@ struct lp_fragment_shader_variant_key
{
struct pipe_depth_state depth;
struct pipe_alpha_state alpha;
+ struct pipe_blend_state blend;
};
diff --git a/src/gallium/drivers/llvmpipe/lp_state_derived.c b/src/gallium/drivers/llvmpipe/lp_state_derived.c
index 35b24a1..9f5d2ff 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_derived.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_derived.c
@@ -247,13 +247,12 @@ void llvmpipe_update_derived( struct llvmpipe_context *llvmpipe )
compute_cliprect(llvmpipe);
if (llvmpipe->dirty & (LP_NEW_FS |
+ LP_NEW_BLEND |
LP_NEW_DEPTH_STENCIL_ALPHA))
llvmpipe_update_fs( llvmpipe );
- if (llvmpipe->dirty & (LP_NEW_BLEND |
- LP_NEW_DEPTH_STENCIL_ALPHA |
- LP_NEW_FRAMEBUFFER |
+ if (llvmpipe->dirty & (LP_NEW_FRAMEBUFFER |
LP_NEW_FS))
lp_build_quad_pipeline(llvmpipe);
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index 521700a..9b0e7cd 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -38,9 +38,11 @@
#include "tgsi/tgsi_parse.h"
#include "lp_bld_type.h"
#include "lp_bld_conv.h"
+#include "lp_bld_logic.h"
#include "lp_bld_depth.h"
#include "lp_bld_tgsi.h"
#include "lp_bld_alpha.h"
+#include "lp_bld_blend.h"
#include "lp_bld_swizzle.h"
#include "lp_bld_flow.h"
#include "lp_bld_debug.h"
@@ -55,13 +57,13 @@ static const unsigned char quad_offset_y[4] = {0, 0, 1, 1};
static void
-setup_pos_vector(LLVMBuilderRef builder,
- LLVMValueRef x,
- LLVMValueRef y,
- LLVMValueRef a0_ptr,
- LLVMValueRef dadx_ptr,
- LLVMValueRef dady_ptr,
- LLVMValueRef *pos)
+generate_pos(LLVMBuilderRef builder,
+ LLVMValueRef x,
+ LLVMValueRef y,
+ LLVMValueRef a0_ptr,
+ LLVMValueRef dadx_ptr,
+ LLVMValueRef dady_ptr,
+ LLVMValueRef *pos)
{
LLVMTypeRef int_elem_type = LLVMInt32Type();
LLVMTypeRef int_vec_type = LLVMVectorType(int_elem_type, QUAD_SIZE);
@@ -110,13 +112,13 @@ setup_pos_vector(LLVMBuilderRef builder,
static void
-depth_test_generate(struct llvmpipe_context *lp,
- LLVMBuilderRef builder,
- const struct pipe_depth_state *state,
- union lp_type src_type,
- struct lp_build_mask_context *mask,
- LLVMValueRef src,
- LLVMValueRef dst_ptr)
+generate_depth(struct llvmpipe_context *lp,
+ LLVMBuilderRef builder,
+ const struct pipe_depth_state *state,
+ union lp_type src_type,
+ struct lp_build_mask_context *mask,
+ LLVMValueRef src,
+ LLVMValueRef dst_ptr)
{
const struct util_format_description *format_desc;
union lp_type dst_type;
@@ -151,18 +153,177 @@ depth_test_generate(struct llvmpipe_context *lp,
}
-static struct lp_fragment_shader_variant *
-shader_generate(struct llvmpipe_context *lp,
- struct lp_fragment_shader *shader,
- const struct lp_fragment_shader_variant_key *key)
+/**
+ * Generate the fragment shader, depth/stencil and alpha tests.
+ */
+static void
+generate_fs(struct llvmpipe_context *lp,
+ struct lp_fragment_shader *shader,
+ const struct lp_fragment_shader_variant_key *key,
+ LLVMBuilderRef builder,
+ union lp_type type,
+ unsigned i,
+ LLVMValueRef x,
+ LLVMValueRef y,
+ LLVMValueRef a0_ptr,
+ LLVMValueRef dadx_ptr,
+ LLVMValueRef dady_ptr,
+ LLVMValueRef consts_ptr,
+ LLVMValueRef *pmask,
+ LLVMValueRef *color,
+ LLVMValueRef depth_ptr,
+ LLVMValueRef samplers_ptr)
{
- struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
- struct lp_fragment_shader_variant *variant;
const struct tgsi_token *tokens = shader->base.tokens;
- union lp_type type;
LLVMTypeRef elem_type;
LLVMTypeRef vec_type;
LLVMTypeRef int_vec_type;
+ LLVMValueRef pos[NUM_CHANNELS];
+ LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
+ struct lp_build_mask_context mask;
+ boolean early_depth_test;
+ unsigned attrib;
+ unsigned chan;
+
+ elem_type = lp_build_elem_type(type);
+ vec_type = lp_build_vec_type(type);
+ int_vec_type = lp_build_int_vec_type(type);
+
+ generate_pos(builder, x, y, a0_ptr, dadx_ptr, dady_ptr, pos);
+
+ lp_build_mask_begin(&mask, builder, type, *pmask);
+
+ early_depth_test =
+ lp->depth_stencil->depth.enabled &&
+ lp->framebuffer.zsbuf &&
+ !lp->depth_stencil->alpha.enabled &&
+ !lp->fs->info.uses_kill &&
+ !lp->fs->info.writes_z;
+
+ if(early_depth_test)
+ generate_depth(lp, builder, &key->depth,
+ type, &mask,
+ pos[2], depth_ptr);
+
+ memset(outputs, 0, sizeof outputs);
+
+ lp_build_tgsi_soa(builder, tokens, type, &mask,
+ pos, a0_ptr, dadx_ptr, dady_ptr,
+ consts_ptr, outputs, samplers_ptr);
+
+ for (attrib = 0; attrib < shader->info.num_outputs; ++attrib) {
+ for(chan = 0; chan < NUM_CHANNELS; ++chan) {
+ if(outputs[attrib][chan]) {
+ lp_build_name(outputs[attrib][chan], "output%u.%u.%c", i, attrib, "xyzw"[chan]);
+
+ switch (shader->info.output_semantic_name[attrib]) {
+ case TGSI_SEMANTIC_COLOR:
+ {
+ unsigned cbuf = shader->info.output_semantic_index[attrib];
+
+ lp_build_name(outputs[attrib][chan], "color%u.%u.%c", i, attrib, "rgba"[chan]);
+
+ /* Alpha test */
+ /* XXX: should the alpha reference value be passed separately? */
+ if(cbuf == 0 && chan == 3)
+ lp_build_alpha_test(builder, &key->alpha, type,
+ &mask,
+ outputs[attrib][chan]);
+
+ if(cbuf == 0)
+ color[chan] = outputs[attrib][chan];
+
+ break;
+ }
+
+ case TGSI_SEMANTIC_POSITION:
+ if(chan == 2)
+ pos[2] = outputs[attrib][chan];
+ break;
+ }
+ }
+ }
+ }
+
+ if(!early_depth_test)
+ generate_depth(lp, builder, &key->depth,
+ type, &mask,
+ pos[2], depth_ptr);
+
+ lp_build_mask_end(&mask);
+
+ *pmask = mask.value;
+
+}
+
+
+/**
+ * Generate blending code according to blend->base state.
+ * The blend function will look like:
+ * blend(mask, src_color, constant color, dst_color)
+ * dst_color will be modified and contain the result of the blend func.
+ */
+static void
+generate_blend(const struct pipe_blend_state *blend,
+ LLVMBuilderRef builder,
+ union lp_type type,
+ LLVMValueRef mask,
+ LLVMValueRef *src,
+ LLVMValueRef const_ptr,
+ LLVMValueRef dst_ptr)
+{
+ struct lp_build_context bld;
+ LLVMTypeRef vec_type;
+ LLVMTypeRef int_vec_type;
+ LLVMValueRef con[4];
+ LLVMValueRef dst[4];
+ LLVMValueRef res[4];
+ unsigned chan;
+
+ vec_type = lp_build_vec_type(type);
+ int_vec_type = lp_build_int_vec_type(type);
+
+ lp_build_context_init(&bld, builder, type);
+
+ for(chan = 0; chan < 4; ++chan) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
+
+ if(const_ptr)
+ con[chan] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, const_ptr, &index, 1, ""), "");
+ else
+ con[chan] = LLVMGetUndef(vec_type); /* FIXME */
+
+ dst[chan] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dst_ptr, &index, 1, ""), "");
+
+ lp_build_name(con[chan], "con.%c", "rgba"[chan]);
+ lp_build_name(dst[chan], "dst.%c", "rgba"[chan]);
+ }
+
+ lp_build_blend_soa(builder, blend, type, src, dst, con, res);
+
+ for(chan = 0; chan < 4; ++chan) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
+ lp_build_name(res[chan], "res.%c", "rgba"[chan]);
+ res[chan] = lp_build_select(&bld, mask, res[chan], dst[chan]);
+ LLVMBuildStore(builder, res[chan], LLVMBuildGEP(builder, dst_ptr, &index, 1, ""));
+ }
+}
+
+
+static struct lp_fragment_shader_variant *
+generate_fragment(struct llvmpipe_context *lp,
+ struct lp_fragment_shader *shader,
+ const struct lp_fragment_shader_variant_key *key)
+{
+ struct llvmpipe_screen *screen = llvmpipe_screen(lp->pipe.screen);
+ struct lp_fragment_shader_variant *variant;
+ union lp_type fs_type;
+ union lp_type blend_type;
+ LLVMTypeRef fs_elem_type;
+ LLVMTypeRef fs_vec_type;
+ LLVMTypeRef fs_int_vec_type;
+ LLVMTypeRef blend_vec_type;
+ LLVMTypeRef blend_int_vec_type;
LLVMTypeRef arg_types[10];
LLVMTypeRef func_type;
LLVMValueRef x;
@@ -177,24 +338,38 @@ shader_generate(struct llvmpipe_context *lp,
LLVMValueRef samplers_ptr;
LLVMBasicBlockRef block;
LLVMBuilderRef builder;
- LLVMValueRef pos[NUM_CHANNELS];
- LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
- struct lp_build_mask_context mask;
- boolean early_depth_test;
+ LLVMValueRef fs_mask[LP_MAX_VECTOR_LENGTH];
+ LLVMValueRef fs_out_color[NUM_CHANNELS][LP_MAX_VECTOR_LENGTH];
+ LLVMValueRef blend_mask;
+ LLVMValueRef blend_in_color[NUM_CHANNELS];
LLVMValueRef fetch_texel;
+ unsigned num_fs;
unsigned i;
- unsigned attrib;
unsigned chan;
#ifdef DEBUG
tgsi_dump(shader->base.tokens, 0);
- debug_printf("depth.enabled = %u\n", key->depth.enabled);
- debug_printf("depth.func = %s\n", debug_dump_func(key->depth.func, TRUE));
- debug_printf("depth.writemask = %u\n", key->depth.writemask);
- debug_printf("depth.occlusion_count = %u\n", key->depth.occlusion_count);
- debug_printf("alpha.enabled = %u\n", key->alpha.enabled);
- debug_printf("alpha.func = %s\n", debug_dump_func(key->alpha.func, TRUE));
- debug_printf("alpha.ref_value = %f\n", key->alpha.ref_value);
+ if(key->depth.enabled) {
+ debug_printf("depth.func = %s\n", debug_dump_func(key->depth.func, TRUE));
+ debug_printf("depth.writemask = %u\n", key->depth.writemask);
+ debug_printf("depth.occlusion_count = %u\n", key->depth.occlusion_count);
+ }
+ if(key->alpha.enabled) {
+ debug_printf("alpha.func = %s\n", debug_dump_func(key->alpha.func, TRUE));
+ debug_printf("alpha.ref_value = %f\n", key->alpha.ref_value);
+ }
+ if(key->blend.logicop_enable) {
+ debug_printf("blend.logicop_func = %u\n", key->blend.logicop_func);
+ }
+ else if(key->blend.blend_enable) {
+ debug_printf("blend.rgb_func = %s\n", debug_dump_blend_func (key->blend.rgb_func, TRUE));
+ debug_printf("rgb_src_factor = %s\n", debug_dump_blend_factor(key->blend.rgb_src_factor, TRUE));
+ debug_printf("rgb_dst_factor = %s\n", debug_dump_blend_factor(key->blend.rgb_dst_factor, TRUE));
+ debug_printf("alpha_func = %s\n", debug_dump_blend_func (key->blend.alpha_func, TRUE));
+ debug_printf("alpha_src_factor = %s\n", debug_dump_blend_factor(key->blend.alpha_src_factor, TRUE));
+ debug_printf("alpha_dst_factor = %s\n", debug_dump_blend_factor(key->blend.alpha_dst_factor, TRUE));
+ }
+ debug_printf("blend.colormask = 0x%x\n", key->blend.colormask);
#endif
variant = CALLOC_STRUCT(lp_fragment_shader_variant);
@@ -204,26 +379,37 @@ shader_generate(struct llvmpipe_context *lp,
variant->shader = shader;
memcpy(&variant->key, key, sizeof *key);
- type.value = 0;
- type.floating = TRUE; /* floating point values */
- type.sign = TRUE; /* values are signed */
- type.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */
- type.width = 32; /* 32-bit float */
- type.length = 4; /* 4 element per vector */
+ fs_type.value = 0;
+ fs_type.floating = TRUE; /* floating point values */
+ fs_type.sign = TRUE; /* values are signed */
+ fs_type.norm = FALSE; /* values are not limited to [0,1] or [-1,1] */
+ fs_type.width = 32; /* 32-bit float */
+ fs_type.length = 4; /* 4 element per vector */
+ num_fs = 4;
- elem_type = lp_build_elem_type(type);
- vec_type = lp_build_vec_type(type);
- int_vec_type = lp_build_int_vec_type(type);
+ blend_type.value = 0;
+ blend_type.floating = FALSE; /* values are integers */
+ blend_type.sign = FALSE; /* values are unsigned */
+ blend_type.norm = TRUE; /* values are in [0,1] or [-1,1] */
+ blend_type.width = 8; /* 8-bit ubyte values */
+ blend_type.length = 16; /* 16 elements per vector */
+
+ fs_elem_type = lp_build_elem_type(fs_type);
+ fs_vec_type = lp_build_vec_type(fs_type);
+ fs_int_vec_type = lp_build_int_vec_type(fs_type);
+
+ blend_vec_type = lp_build_vec_type(blend_type);
+ blend_int_vec_type = lp_build_int_vec_type(blend_type);
arg_types[0] = LLVMInt32Type(); /* x */
arg_types[1] = LLVMInt32Type(); /* y */
- arg_types[2] = LLVMPointerType(elem_type, 0); /* a0 */
- arg_types[3] = LLVMPointerType(elem_type, 0); /* dadx */
- arg_types[4] = LLVMPointerType(elem_type, 0); /* dady */
- arg_types[5] = LLVMPointerType(elem_type, 0); /* consts */
- arg_types[6] = LLVMPointerType(int_vec_type, 0); /* mask */
- arg_types[7] = LLVMPointerType(vec_type, 0); /* color */
- arg_types[8] = LLVMPointerType(int_vec_type, 0); /* depth */
+ arg_types[2] = LLVMPointerType(fs_elem_type, 0); /* a0 */
+ arg_types[3] = LLVMPointerType(fs_elem_type, 0); /* dadx */
+ arg_types[4] = LLVMPointerType(fs_elem_type, 0); /* dady */
+ arg_types[5] = LLVMPointerType(fs_elem_type, 0); /* consts */
+ arg_types[6] = LLVMPointerType(fs_int_vec_type, 0); /* mask */
+ arg_types[7] = LLVMPointerType(blend_vec_type, 0); /* color */
+ arg_types[8] = LLVMPointerType(fs_int_vec_type, 0); /* depth */
arg_types[9] = LLVMPointerType(LLVMInt8Type(), 0); /* samplers */
func_type = LLVMFunctionType(LLVMVoidType(), arg_types, Elements(arg_types), 0);
@@ -260,70 +446,57 @@ shader_generate(struct llvmpipe_context *lp,
builder = LLVMCreateBuilder();
LLVMPositionBuilderAtEnd(builder, block);
- setup_pos_vector(builder, x, y, a0_ptr, dadx_ptr, dady_ptr, pos);
-
- lp_build_mask_begin(&mask, builder, type,
- LLVMBuildLoad(builder, mask_ptr, ""));
-
- early_depth_test =
- lp->depth_stencil->depth.enabled &&
- lp->framebuffer.zsbuf &&
- !lp->depth_stencil->alpha.enabled &&
- !lp->fs->info.uses_kill &&
- !lp->fs->info.writes_z;
-
- if(early_depth_test)
- depth_test_generate(lp, builder, &key->depth,
- type, &mask,
- pos[2], depth_ptr);
-
- memset(outputs, 0, sizeof outputs);
-
- lp_build_tgsi_soa(builder, tokens, type, &mask,
- pos, a0_ptr, dadx_ptr, dady_ptr,
- consts_ptr, outputs, samplers_ptr);
-
- for (attrib = 0; attrib < shader->info.num_outputs; ++attrib) {
- for(chan = 0; chan < NUM_CHANNELS; ++chan) {
- if(outputs[attrib][chan]) {
- lp_build_name(outputs[attrib][chan], "output%u.%c", attrib, "xyzw"[chan]);
-
- switch (shader->info.output_semantic_name[attrib]) {
- case TGSI_SEMANTIC_COLOR:
- {
- unsigned cbuf = shader->info.output_semantic_index[attrib];
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), cbuf*NUM_CHANNELS + chan, 0);
- LLVMValueRef output_ptr = LLVMBuildGEP(builder, color_ptr, &index, 1, "");
- lp_build_name(outputs[attrib][chan], "color%u.%c", attrib, "rgba"[chan]);
- LLVMBuildStore(builder, outputs[attrib][chan], output_ptr);
-
- /* Alpha test */
- /* XXX: should the alpha reference value be passed separately? */
- if(cbuf == 0 && chan == 3)
- lp_build_alpha_test(builder, &key->alpha, type,
- &mask,
- outputs[attrib][chan]);
-
- break;
- }
+ for(i = 0; i < num_fs; ++i) {
+ LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), i, 0);
+ LLVMValueRef out_color[NUM_CHANNELS];
+ LLVMValueRef x_i;
+ LLVMValueRef depth_ptr_i;
+
+ /* TODO: Reuse position interpolation */
+ x_i = LLVMBuildAdd(builder, x, LLVMConstInt(LLVMInt32Type(), 2*i, 0), "");
+
+ fs_mask[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, mask_ptr, &index, 1, ""), "");
+ depth_ptr_i = LLVMBuildGEP(builder, depth_ptr, &index, 1, "");
+
+ generate_fs(lp,
+ shader,
+ key,
+ builder,
+ fs_type,
+ i,
+ x_i,
+ y,
+ a0_ptr,
+ dadx_ptr,
+ dady_ptr,
+ consts_ptr,
+ &fs_mask[i],
+ out_color,
+ depth_ptr_i,
+ samplers_ptr);
+
+ for(chan = 0; chan < NUM_CHANNELS; ++chan)
+ fs_out_color[chan][i] = out_color[chan];
+ }
- case TGSI_SEMANTIC_POSITION:
- if(chan == 2)
- pos[2] = outputs[attrib][chan];
- break;
- }
- }
- }
+ for(chan = 0; chan < NUM_CHANNELS; ++chan) {
+ lp_build_conv(builder, fs_type, blend_type,
+ fs_out_color[chan], num_fs,
+ &blend_in_color[chan], 1);
+ lp_build_name(blend_in_color[chan], "color.%c", "rgba"[chan]);
}
- if(!early_depth_test)
- depth_test_generate(lp, builder, &key->depth,
- type, &mask,
- pos[2], depth_ptr);
+ lp_build_conv_mask(builder, fs_type, blend_type,
+ fs_mask, num_fs,
+ &blend_mask, 1);
- lp_build_mask_end(&mask);
- if(mask.value)
- LLVMBuildStore(builder, mask.value, mask_ptr);
+ generate_blend(&key->blend,
+ builder,
+ blend_type,
+ blend_mask,
+ blend_in_color,
+ NULL /* FIXME: blend_const_color */,
+ color_ptr);
LLVMBuildRetVoid(builder);;
@@ -512,6 +685,7 @@ void llvmpipe_update_fs(struct llvmpipe_context *lp)
memset(&key, 0, sizeof key);
memcpy(&key.depth, &lp->depth_stencil->depth, sizeof &key.depth);
memcpy(&key.alpha, &lp->depth_stencil->alpha, sizeof &key.alpha);
+ memcpy(&key.blend, &lp->blend->base, sizeof &key.blend);
variant = shader->variants;
while(variant) {
@@ -522,7 +696,7 @@ void llvmpipe_update_fs(struct llvmpipe_context *lp)
}
if(!variant)
- variant = shader_generate(lp, shader, &key);
+ variant = generate_fragment(lp, shader, &key);
shader->current = variant;
}
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