summaryrefslogtreecommitdiffstats
path: root/src/gallium
diff options
context:
space:
mode:
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/llvmpipe/lp_bld_interp.c165
-rw-r--r--src/gallium/drivers/llvmpipe/lp_bld_interp.h11
-rw-r--r--src/gallium/drivers/llvmpipe/lp_context.h5
-rw-r--r--src/gallium/drivers/llvmpipe/lp_setup_tri.c77
-rw-r--r--src/gallium/drivers/llvmpipe/lp_state_derived.c3
-rw-r--r--src/gallium/drivers/llvmpipe/lp_state_fs.c9
6 files changed, 160 insertions, 110 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_interp.c b/src/gallium/drivers/llvmpipe/lp_bld_interp.c
index 07c9e646630..d1f0185684d 100644
--- a/src/gallium/drivers/llvmpipe/lp_bld_interp.c
+++ b/src/gallium/drivers/llvmpipe/lp_bld_interp.c
@@ -105,15 +105,15 @@ coeffs_init(struct lp_build_interp_soa_context *bld,
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
if(mask & (1 << chan)) {
LLVMValueRef index = LLVMConstInt(LLVMInt32Type(), attrib*NUM_CHANNELS + chan, 0);
- LLVMValueRef a0 = NULL;
- LLVMValueRef dadx = NULL;
- LLVMValueRef dady = NULL;
+ LLVMValueRef a0 = bld->base.undef;
+ LLVMValueRef dadx = bld->base.undef;
+ LLVMValueRef dady = bld->base.undef;
switch( interp ) {
- case TGSI_INTERPOLATE_PERSPECTIVE:
+ case LP_INTERP_PERSPECTIVE:
/* fall-through */
- case TGSI_INTERPOLATE_LINEAR:
+ case LP_INTERP_LINEAR:
dadx = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dadx_ptr, &index, 1, ""), "");
dady = LLVMBuildLoad(builder, LLVMBuildGEP(builder, dady_ptr, &index, 1, ""), "");
dadx = lp_build_broadcast_scalar(&bld->base, dadx);
@@ -122,12 +122,17 @@ coeffs_init(struct lp_build_interp_soa_context *bld,
attrib_name(dady, attrib, chan, ".dady");
/* fall-through */
- case TGSI_INTERPOLATE_CONSTANT:
+ case LP_INTERP_CONSTANT:
+ case LP_INTERP_FACING:
a0 = LLVMBuildLoad(builder, LLVMBuildGEP(builder, a0_ptr, &index, 1, ""), "");
a0 = lp_build_broadcast_scalar(&bld->base, a0);
attrib_name(a0, attrib, chan, ".a0");
break;
+ case LP_INTERP_POSITION:
+ /* Nothing to do as the position coeffs are already setup in slot 0 */
+ break;
+
default:
assert(0);
break;
@@ -163,36 +168,44 @@ attribs_init(struct lp_build_interp_soa_context *bld)
const unsigned interp = bld->interp[attrib];
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
if(mask & (1 << chan)) {
- LLVMValueRef a0 = bld->a0 [attrib][chan];
- LLVMValueRef dadx = bld->dadx[attrib][chan];
- LLVMValueRef dady = bld->dady[attrib][chan];
- LLVMValueRef res;
-
- res = a0;
-
- if (interp != TGSI_INTERPOLATE_CONSTANT) {
- /* res = res + x * dadx */
- res = lp_build_add(&bld->base, res, lp_build_mul(&bld->base, x, dadx));
- /* res = res + y * dady */
- res = lp_build_add(&bld->base, res, lp_build_mul(&bld->base, y, dady));
+ if (interp == LP_INTERP_POSITION) {
+ assert(attrib > 0);
+ bld->attribs[attrib][chan] = bld->attribs[0][chan];
}
+ else {
+ LLVMValueRef a0 = bld->a0 [attrib][chan];
+ LLVMValueRef dadx = bld->dadx[attrib][chan];
+ LLVMValueRef dady = bld->dady[attrib][chan];
+ LLVMValueRef res;
- /* Keep the value of the attribute before perspective divide
- * for faster updates.
- */
- bld->attribs_pre[attrib][chan] = res;
-
- if (interp == TGSI_INTERPOLATE_PERSPECTIVE) {
- LLVMValueRef w = bld->pos[3];
- assert(attrib != 0);
- if(!oow)
- oow = lp_build_rcp(&bld->base, w);
- res = lp_build_mul(&bld->base, res, oow);
- }
+ res = a0;
+
+ if (interp != LP_INTERP_CONSTANT &&
+ interp != LP_INTERP_FACING) {
+ /* res = res + x * dadx */
+ res = lp_build_add(&bld->base, res, lp_build_mul(&bld->base, x, dadx));
+ /* res = res + y * dady */
+ res = lp_build_add(&bld->base, res, lp_build_mul(&bld->base, y, dady));
+ }
- attrib_name(res, attrib, chan, "");
+ /* Keep the value of the attribute before perspective divide
+ * for faster updates.
+ */
+ bld->attribs_pre[attrib][chan] = res;
- bld->attribs[attrib][chan] = res;
+ if (interp == LP_INTERP_PERSPECTIVE) {
+ LLVMValueRef w = bld->pos[3];
+ assert(attrib != 0);
+ assert(bld->mask[0] & TGSI_WRITEMASK_W);
+ if(!oow)
+ oow = lp_build_rcp(&bld->base, w);
+ res = lp_build_mul(&bld->base, res, oow);
+ }
+
+ attrib_name(res, attrib, chan, "");
+
+ bld->attribs[attrib][chan] = res;
+ }
}
}
}
@@ -216,40 +229,48 @@ attribs_update(struct lp_build_interp_soa_context *bld, int quad_index)
const unsigned mask = bld->mask[attrib];
const unsigned interp = bld->interp[attrib];
- if (interp != TGSI_INTERPOLATE_CONSTANT) {
+ if (interp != LP_INTERP_CONSTANT &&
+ interp != LP_INTERP_FACING) {
for(chan = 0; chan < NUM_CHANNELS; ++chan) {
if(mask & (1 << chan)) {
- LLVMValueRef dadx = bld->dadx[attrib][chan];
- LLVMValueRef dady = bld->dady[attrib][chan];
- LLVMValueRef res;
-
- res = bld->attribs_pre[attrib][chan];
-
- if (quad_index == 1 || quad_index == 3) {
- /* top-right or bottom-right quad */
- /* build res = res + dadx + dadx */
- res = lp_build_add(&bld->base, res, dadx);
- res = lp_build_add(&bld->base, res, dadx);
+ if (interp == LP_INTERP_POSITION) {
+ assert(attrib > 0);
+ bld->attribs[attrib][chan] = bld->attribs[0][chan];
}
-
- if (quad_index == 2 || quad_index == 3) {
- /* bottom-left or bottom-right quad */
- /* build res = res + dady + dady */
- res = lp_build_add(&bld->base, res, dady);
- res = lp_build_add(&bld->base, res, dady);
+ else {
+ LLVMValueRef dadx = bld->dadx[attrib][chan];
+ LLVMValueRef dady = bld->dady[attrib][chan];
+ LLVMValueRef res;
+
+ res = bld->attribs_pre[attrib][chan];
+
+ if (quad_index == 1 || quad_index == 3) {
+ /* top-right or bottom-right quad */
+ /* build res = res + dadx + dadx */
+ res = lp_build_add(&bld->base, res, dadx);
+ res = lp_build_add(&bld->base, res, dadx);
+ }
+
+ if (quad_index == 2 || quad_index == 3) {
+ /* bottom-left or bottom-right quad */
+ /* build res = res + dady + dady */
+ res = lp_build_add(&bld->base, res, dady);
+ res = lp_build_add(&bld->base, res, dady);
+ }
+
+ if (interp == LP_INTERP_PERSPECTIVE) {
+ LLVMValueRef w = bld->pos[3];
+ assert(attrib != 0);
+ assert(bld->mask[0] & TGSI_WRITEMASK_W);
+ if(!oow)
+ oow = lp_build_rcp(&bld->base, w);
+ res = lp_build_mul(&bld->base, res, oow);
+ }
+
+ attrib_name(res, attrib, chan, "");
+
+ bld->attribs[attrib][chan] = res;
}
-
- if (interp == TGSI_INTERPOLATE_PERSPECTIVE) {
- LLVMValueRef w = bld->pos[3];
- assert(attrib != 0);
- if(!oow)
- oow = lp_build_rcp(&bld->base, w);
- res = lp_build_mul(&bld->base, res, oow);
- }
-
- attrib_name(res, attrib, chan, "");
-
- bld->attribs[attrib][chan] = res;
}
}
}
@@ -315,8 +336,8 @@ pos_update(struct lp_build_interp_soa_context *bld, int quad_index)
*/
void
lp_build_interp_soa_init(struct lp_build_interp_soa_context *bld,
- const struct tgsi_shader_info *info,
- boolean flatshade,
+ unsigned num_inputs,
+ const struct lp_shader_input *inputs,
LLVMBuilderRef builder,
struct lp_type type,
LLVMValueRef a0_ptr,
@@ -339,20 +360,14 @@ lp_build_interp_soa_init(struct lp_build_interp_soa_context *bld,
/* Position */
bld->num_attribs = 1;
bld->mask[0] = TGSI_WRITEMASK_ZW;
- bld->interp[0] = TGSI_INTERPOLATE_LINEAR;
+ bld->interp[0] = LP_INTERP_LINEAR;
/* Inputs */
- for (attrib = 0; attrib < info->num_inputs; ++attrib) {
- bld->mask[1 + attrib] = info->input_usage_mask[attrib];
-
- if (info->input_semantic_name[attrib] == TGSI_SEMANTIC_COLOR &&
- flatshade)
- bld->interp[1 + attrib] = TGSI_INTERPOLATE_CONSTANT;
- else
- bld->interp[1 + attrib] = info->input_interpolate[attrib];
-
+ for (attrib = 0; attrib < num_inputs; ++attrib) {
+ bld->mask[1 + attrib] = inputs[attrib].usage_mask;
+ bld->interp[1 + attrib] = inputs[attrib].interp;
}
- bld->num_attribs = 1 + info->num_inputs;
+ bld->num_attribs = 1 + num_inputs;
/* Ensure all masked out input channels have a valid value */
for (attrib = 0; attrib < bld->num_attribs; ++attrib) {
diff --git a/src/gallium/drivers/llvmpipe/lp_bld_interp.h b/src/gallium/drivers/llvmpipe/lp_bld_interp.h
index 2d41fefd47b..79d1e51605a 100644
--- a/src/gallium/drivers/llvmpipe/lp_bld_interp.h
+++ b/src/gallium/drivers/llvmpipe/lp_bld_interp.h
@@ -46,10 +46,7 @@
#include "tgsi/tgsi_exec.h"
-
-
-struct tgsi_token;
-struct tgsi_shader_info;
+#include "lp_setup.h"
struct lp_build_interp_soa_context
@@ -58,7 +55,7 @@ struct lp_build_interp_soa_context
unsigned num_attribs;
unsigned mask[1 + PIPE_MAX_SHADER_INPUTS]; /**< TGSI_WRITE_MASK_x */
- unsigned interp[1 + PIPE_MAX_SHADER_INPUTS]; /**< TGSI_INTERPOLATE_x */
+ enum lp_interp interp[1 + PIPE_MAX_SHADER_INPUTS];
LLVMValueRef a0 [1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
LLVMValueRef dadx[1 + PIPE_MAX_SHADER_INPUTS][NUM_CHANNELS];
@@ -79,8 +76,8 @@ struct lp_build_interp_soa_context
void
lp_build_interp_soa_init(struct lp_build_interp_soa_context *bld,
- const struct tgsi_shader_info *info,
- boolean flatshade,
+ unsigned num_inputs,
+ const struct lp_shader_input *inputs,
LLVMBuilderRef builder,
struct lp_type type,
LLVMValueRef a0_ptr,
diff --git a/src/gallium/drivers/llvmpipe/lp_context.h b/src/gallium/drivers/llvmpipe/lp_context.h
index de7fe7a1796..689265fa30d 100644
--- a/src/gallium/drivers/llvmpipe/lp_context.h
+++ b/src/gallium/drivers/llvmpipe/lp_context.h
@@ -37,6 +37,7 @@
#include "lp_tex_sample.h"
#include "lp_jit.h"
+#include "lp_setup.h"
struct llvmpipe_vbuf_render;
@@ -90,6 +91,10 @@ struct llvmpipe_context {
/** Vertex format */
struct vertex_info vertex_info;
+ /** Fragment shader input interpolation info */
+ unsigned num_inputs;
+ struct lp_shader_input inputs[PIPE_MAX_SHADER_INPUTS];
+
/** The tiling engine */
struct lp_setup_context *setup;
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_tri.c b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
index b5600615420..0557d35f8b1 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_tri.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_tri.c
@@ -147,20 +147,32 @@ setup_fragcoord_coef(struct lp_setup_context *setup,
unsigned slot,
const float (*v1)[4],
const float (*v2)[4],
- const float (*v3)[4])
+ const float (*v3)[4],
+ unsigned usage_mask)
{
/*X*/
- tri->inputs.a0[slot][0] = 0.0;
- tri->inputs.dadx[slot][0] = 1.0;
- tri->inputs.dady[slot][0] = 0.0;
+ if (usage_mask & TGSI_WRITEMASK_X) {
+ tri->inputs.a0[slot][0] = 0.0;
+ tri->inputs.dadx[slot][0] = 1.0;
+ tri->inputs.dady[slot][0] = 0.0;
+ }
+
/*Y*/
- tri->inputs.a0[slot][1] = 0.0;
- tri->inputs.dadx[slot][1] = 0.0;
- tri->inputs.dady[slot][1] = 1.0;
+ if (usage_mask & TGSI_WRITEMASK_Y) {
+ tri->inputs.a0[slot][1] = 0.0;
+ tri->inputs.dadx[slot][1] = 0.0;
+ tri->inputs.dady[slot][1] = 1.0;
+ }
+
/*Z*/
- linear_coef(setup, tri, oneoverarea, slot, v1, v2, v3, 0, 2);
+ if (usage_mask & TGSI_WRITEMASK_Z) {
+ linear_coef(setup, tri, oneoverarea, slot, v1, v2, v3, 0, 2);
+ }
+
/*W*/
- linear_coef(setup, tri, oneoverarea, slot, v1, v2, v3, 0, 3);
+ if (usage_mask & TGSI_WRITEMASK_W) {
+ linear_coef(setup, tri, oneoverarea, slot, v1, v2, v3, 0, 3);
+ }
}
@@ -171,13 +183,21 @@ setup_fragcoord_coef(struct lp_setup_context *setup,
static void setup_facing_coef( struct lp_setup_context *setup,
struct lp_rast_triangle *tri,
unsigned slot,
- boolean frontface )
+ boolean frontface,
+ unsigned usage_mask)
{
/* convert TRUE to 1.0 and FALSE to -1.0 */
- constant_coef( setup, tri, slot, 2.0f * frontface - 1.0f, 0 );
- constant_coef( setup, tri, slot, 0.0f, 1 ); /* wasted */
- constant_coef( setup, tri, slot, 0.0f, 2 ); /* wasted */
- constant_coef( setup, tri, slot, 0.0f, 3 ); /* wasted */
+ if (usage_mask & TGSI_WRITEMASK_X)
+ constant_coef( setup, tri, slot, 2.0f * frontface - 1.0f, 0 );
+
+ if (usage_mask & TGSI_WRITEMASK_Y)
+ constant_coef( setup, tri, slot, 0.0f, 1 ); /* wasted */
+
+ if (usage_mask & TGSI_WRITEMASK_Z)
+ constant_coef( setup, tri, slot, 0.0f, 2 ); /* wasted */
+
+ if (usage_mask & TGSI_WRITEMASK_W)
+ constant_coef( setup, tri, slot, 0.0f, 3 ); /* wasted */
}
@@ -192,58 +212,65 @@ static void setup_tri_coefficients( struct lp_setup_context *setup,
const float (*v3)[4],
boolean frontface)
{
+ unsigned fragcoord_usage_mask = TGSI_WRITEMASK_XYZ;
unsigned slot;
- /* The internal position input is in slot zero:
- */
- setup_fragcoord_coef(setup, tri, oneoverarea, 0, v1, v2, v3);
-
/* setup interpolation for all the remaining attributes:
*/
for (slot = 0; slot < setup->fs.nr_inputs; slot++) {
unsigned vert_attr = setup->fs.input[slot].src_index;
+ unsigned usage_mask = setup->fs.input[slot].usage_mask;
unsigned i;
switch (setup->fs.input[slot].interp) {
case LP_INTERP_CONSTANT:
if (setup->flatshade_first) {
for (i = 0; i < NUM_CHANNELS; i++)
- if (setup->fs.input[slot].usage_mask & (1 << i))
+ if (usage_mask & (1 << i))
constant_coef(setup, tri, slot+1, v1[vert_attr][i], i);
}
else {
for (i = 0; i < NUM_CHANNELS; i++)
- if (setup->fs.input[slot].usage_mask & (1 << i))
+ if (usage_mask & (1 << i))
constant_coef(setup, tri, slot+1, v3[vert_attr][i], i);
}
break;
case LP_INTERP_LINEAR:
for (i = 0; i < NUM_CHANNELS; i++)
- if (setup->fs.input[slot].usage_mask & (1 << i))
+ if (usage_mask & (1 << i))
linear_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i);
break;
case LP_INTERP_PERSPECTIVE:
for (i = 0; i < NUM_CHANNELS; i++)
- if (setup->fs.input[slot].usage_mask & (1 << i))
+ if (usage_mask & (1 << i))
perspective_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3, vert_attr, i);
+ fragcoord_usage_mask |= TGSI_WRITEMASK_W;
break;
case LP_INTERP_POSITION:
- /* XXX: fix me - duplicates the values in slot zero.
+ /*
+ * The generated pixel interpolators will pick up the coeffs from
+ * slot 0, so all need to ensure that the usage mask is covers all
+ * usages.
*/
- setup_fragcoord_coef(setup, tri, oneoverarea, slot+1, v1, v2, v3);
+ fragcoord_usage_mask |= usage_mask;
break;
case LP_INTERP_FACING:
- setup_facing_coef(setup, tri, slot+1, frontface);
+ setup_facing_coef(setup, tri, slot+1, frontface, usage_mask);
break;
default:
assert(0);
}
}
+
+ /* The internal position input is in slot zero:
+ */
+ setup_fragcoord_coef(setup, tri, oneoverarea, 0, v1, v2, v3,
+ fragcoord_usage_mask);
}
diff --git a/src/gallium/drivers/llvmpipe/lp_state_derived.c b/src/gallium/drivers/llvmpipe/lp_state_derived.c
index 773aadc92d9..46a96536075 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_derived.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_derived.c
@@ -50,7 +50,7 @@ compute_vertex_info(struct llvmpipe_context *llvmpipe)
{
const struct lp_fragment_shader *lpfs = llvmpipe->fs;
struct vertex_info *vinfo = &llvmpipe->vertex_info;
- struct lp_shader_input inputs[1 + PIPE_MAX_SHADER_INPUTS];
+ struct lp_shader_input *inputs = llvmpipe->inputs;
unsigned vs_index;
uint i;
@@ -124,6 +124,7 @@ compute_vertex_info(struct llvmpipe_context *llvmpipe)
inputs[i].src_index = vinfo->num_attribs;
draw_emit_vertex_attr(vinfo, EMIT_4F, INTERP_PERSPECTIVE, vs_index);
}
+ llvmpipe->num_inputs = lpfs->info.num_inputs;
draw_compute_vertex_size(vinfo);
diff --git a/src/gallium/drivers/llvmpipe/lp_state_fs.c b/src/gallium/drivers/llvmpipe/lp_state_fs.c
index d3f2eb2421e..835175db138 100644
--- a/src/gallium/drivers/llvmpipe/lp_state_fs.c
+++ b/src/gallium/drivers/llvmpipe/lp_state_fs.c
@@ -759,9 +759,14 @@ generate_fragment(struct llvmpipe_context *lp,
generate_pos0(builder, x, y, &x0, &y0);
+ /*
+ * The shader input interpolation info is not explicitely baked in the
+ * shader key, but everything it derives from (TGSI, and flatshade) is
+ * already included in the shader key.
+ */
lp_build_interp_soa_init(&interp,
- &shader->info,
- key->flatshade,
+ lp->num_inputs,
+ lp->inputs,
builder, fs_type,
a0_ptr, dadx_ptr, dady_ptr,
x0, y0);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-17 05:46:55 +0000