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Diffstat (limited to 'src/gallium/drivers/llvmpipe/lp_state_fs.c')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_state_fs.c100
1 files changed, 33 insertions, 67 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index e639f9c20f..361b30699c 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -69,9 +69,11 @@
#include "tgsi/tgsi_scan.h"
#include "tgsi/tgsi_parse.h"
#include "lp_bld_type.h"
+#include "lp_bld_const.h"
#include "lp_bld_conv.h"
#include "lp_bld_logic.h"
#include "lp_bld_depth.h"
+#include "lp_bld_interp.h"
#include "lp_bld_tgsi.h"
#include "lp_bld_alpha.h"
#include "lp_bld_blend.h"
@@ -88,22 +90,16 @@ static const unsigned char quad_offset_x[4] = {0, 1, 0, 1};
static const unsigned char quad_offset_y[4] = {0, 0, 1, 1};
-/**
- * Generate the position vectors.
- *
- * TODO: This should be called only once per fragment pipeline, for the first
- * quad, and the neighboring quad positions obtained by additions.
- *
- * Parameter x, y are the integer values with the quad upper left coordinates.
+/*
+ * Derive from the quad's upper left scalar coordinates the coordinates for
+ * all other quad pixels
*/
static void
-generate_pos(LLVMBuilderRef builder,
- LLVMValueRef x,
- LLVMValueRef y,
- LLVMValueRef a0_ptr,
- LLVMValueRef dadx_ptr,
- LLVMValueRef dady_ptr,
- LLVMValueRef *pos)
+generate_pos0(LLVMBuilderRef builder,
+ LLVMValueRef x,
+ LLVMValueRef y,
+ LLVMValueRef *x0,
+ LLVMValueRef *y0)
{
LLVMTypeRef int_elem_type = LLVMInt32Type();
LLVMTypeRef int_vec_type = LLVMVectorType(int_elem_type, QUAD_SIZE);
@@ -111,14 +107,8 @@ generate_pos(LLVMBuilderRef builder,
LLVMTypeRef vec_type = LLVMVectorType(elem_type, QUAD_SIZE);
LLVMValueRef x_offsets[QUAD_SIZE];
LLVMValueRef y_offsets[QUAD_SIZE];
- unsigned chan;
unsigned i;
- /*
- * Derive from the quad's upper left scalar coordinates the coordinates for
- * all other quad pixels
- */
-
x = lp_build_broadcast(builder, int_vec_type, x);
y = lp_build_broadcast(builder, int_vec_type, y);
@@ -130,33 +120,8 @@ generate_pos(LLVMBuilderRef builder,
x = LLVMBuildAdd(builder, x, LLVMConstVector(x_offsets, QUAD_SIZE), "");
y = LLVMBuildAdd(builder, y, LLVMConstVector(y_offsets, QUAD_SIZE), "");
- x = LLVMBuildSIToFP(builder, x, vec_type, "");
- y = LLVMBuildSIToFP(builder, y, vec_type, "");
-
- pos[0] = x;
- pos[1] = y;
-
- /*
- * Calculate z and w from the interpolation factors.
- */
-
- for(chan = 2; chan < NUM_CHANNELS; ++chan) {
- LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), chan, 0);
- LLVMValueRef a0 = LLVMBuildLoad(builder, LLVMBuildGEP(builder, a0_ptr, &index, 1, ""), "");
- LLVMValueRef dadx = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dadx_ptr, &index, 1, ""), "");
- LLVMValueRef dady = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dady_ptr, &index, 1, ""), "");
- LLVMValueRef res;
- a0 = lp_build_broadcast(builder, vec_type, a0);
- dadx = lp_build_broadcast(builder, vec_type, dadx);
- dady = lp_build_broadcast(builder, vec_type, dady);
- res = a0;
- res = LLVMBuildAdd(builder, res, LLVMBuildMul(builder, dadx, x, ""), "");
- res = LLVMBuildAdd(builder, res, LLVMBuildMul(builder, dady, y, ""), "");
- pos[chan] = res;
- }
-
- for(chan = 0; chan < NUM_CHANNELS; ++chan)
- lp_build_name(pos[chan], "pos.%c", "xyzw"[chan]);
+ *x0 = LLVMBuildSIToFP(builder, x, vec_type, "");
+ *y0 = LLVMBuildSIToFP(builder, y, vec_type, "");
}
@@ -218,11 +183,7 @@ generate_fs(struct llvmpipe_context *lp,
union lp_type type,
LLVMValueRef context_ptr,
unsigned i,
- LLVMValueRef x,
- LLVMValueRef y,
- LLVMValueRef a0_ptr,
- LLVMValueRef dadx_ptr,
- LLVMValueRef dady_ptr,
+ const struct lp_build_interp_soa_context *interp,
LLVMValueRef *pmask,
LLVMValueRef *color,
LLVMValueRef depth_ptr)
@@ -233,8 +194,8 @@ generate_fs(struct llvmpipe_context *lp,
LLVMTypeRef int_vec_type;
LLVMValueRef consts_ptr;
LLVMValueRef samplers_ptr;
- LLVMValueRef pos[NUM_CHANNELS];
LLVMValueRef outputs[PIPE_MAX_SHADER_OUTPUTS][NUM_CHANNELS];
+ LLVMValueRef z = interp->pos[2];
struct lp_build_mask_context mask;
boolean early_depth_test;
unsigned attrib;
@@ -247,8 +208,6 @@ generate_fs(struct llvmpipe_context *lp,
consts_ptr = lp_jit_context_constants(builder, context_ptr);
samplers_ptr = lp_jit_context_samplers(builder, context_ptr);
- generate_pos(builder, x, y, a0_ptr, dadx_ptr, dady_ptr, pos);
-
lp_build_mask_begin(&mask, builder, type, *pmask);
early_depth_test =
@@ -260,14 +219,14 @@ generate_fs(struct llvmpipe_context *lp,
if(early_depth_test)
generate_depth(lp, builder, &key->depth,
- type, &mask,
- pos[2], depth_ptr);
+ type, &mask,
+ z, 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);
+ consts_ptr, interp->pos, interp->inputs,
+ outputs, samplers_ptr);
for (attrib = 0; attrib < shader->info.num_outputs; ++attrib) {
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
@@ -300,7 +259,7 @@ generate_fs(struct llvmpipe_context *lp,
case TGSI_SEMANTIC_POSITION:
if(chan == 2)
- pos[2] = outputs[attrib][chan];
+ z = outputs[attrib][chan];
break;
}
}
@@ -309,8 +268,8 @@ generate_fs(struct llvmpipe_context *lp,
if(!early_depth_test)
generate_depth(lp, builder, &key->depth,
- type, &mask,
- pos[2], depth_ptr);
+ type, &mask,
+ z, depth_ptr);
lp_build_mask_end(&mask);
@@ -400,6 +359,9 @@ generate_fragment(struct llvmpipe_context *lp,
LLVMValueRef depth_ptr;
LLVMBasicBlockRef block;
LLVMBuilderRef builder;
+ LLVMValueRef x0;
+ LLVMValueRef y0;
+ struct lp_build_interp_soa_context interp;
LLVMValueRef fs_mask[LP_MAX_VECTOR_LENGTH];
LLVMValueRef fs_out_color[NUM_CHANNELS][LP_MAX_VECTOR_LENGTH];
LLVMValueRef blend_mask;
@@ -516,14 +478,19 @@ generate_fragment(struct llvmpipe_context *lp,
builder = LLVMCreateBuilder();
LLVMPositionBuilderAtEnd(builder, block);
+ generate_pos0(builder, x, y, &x0, &y0);
+
+ lp_build_interp_soa_init(&interp, shader->base.tokens, builder, fs_type,
+ a0_ptr, dadx_ptr, dady_ptr,
+ x0, y0, 2, 0);
+
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), "");
+ if(i != 0)
+ lp_build_interp_soa_update(&interp);
fs_mask[i] = LLVMBuildLoad(builder, LLVMBuildGEP(builder, mask_ptr, &index, 1, ""), "");
depth_ptr_i = LLVMBuildGEP(builder, depth_ptr, &index, 1, "");
@@ -533,8 +500,7 @@ generate_fragment(struct llvmpipe_context *lp,
fs_type,
context_ptr,
i,
- x_i, y,
- a0_ptr, dadx_ptr, dady_ptr,
+ &interp,
&fs_mask[i],
out_color,
depth_ptr_i);
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-26 08:24:05 +0000