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-rw-r--r--src/gallium/auxiliary/draw/draw_pt.h2
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c2
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c2
-rw-r--r--src/gallium/auxiliary/draw/draw_pt_so_emit.c26
-rw-r--r--src/gallium/auxiliary/draw/draw_vs.c1
5 files changed, 26 insertions, 7 deletions
diff --git a/src/gallium/auxiliary/draw/draw_pt.h b/src/gallium/auxiliary/draw/draw_pt.h
index 7d07363068e..764d3111755 100644
--- a/src/gallium/auxiliary/draw/draw_pt.h
+++ b/src/gallium/auxiliary/draw/draw_pt.h
@@ -185,7 +185,7 @@ struct pt_emit *draw_pt_emit_create( struct draw_context *draw );
*/
struct pt_so_emit;
-void draw_pt_so_emit_prepare( struct pt_so_emit *emit );
+void draw_pt_so_emit_prepare(struct pt_so_emit *emit, boolean use_pre_clip_pos);
void draw_pt_so_emit( struct pt_so_emit *emit,
const struct draw_vertex_info *vert_info,
diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c
index d1b76b12b02..2fc82204528 100644
--- a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c
+++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline.c
@@ -117,7 +117,7 @@ static void fetch_pipeline_prepare( struct draw_pt_middle_end *middle,
(boolean)draw->rasterizer->gl_rasterization_rules,
(draw->vs.edgeflag_output ? TRUE : FALSE) );
- draw_pt_so_emit_prepare( fpme->so_emit );
+ draw_pt_so_emit_prepare( fpme->so_emit, FALSE );
if (!(opt & PT_PIPELINE)) {
draw_pt_emit_prepare( fpme->emit,
diff --git a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
index bfad54bb36e..b0c18ed14dc 100644
--- a/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
+++ b/src/gallium/auxiliary/draw/draw_pt_fetch_shade_pipeline_llvm.c
@@ -102,7 +102,7 @@ llvm_middle_end_prepare( struct draw_pt_middle_end *middle,
(boolean)draw->rasterizer->gl_rasterization_rules,
(draw->vs.edgeflag_output ? TRUE : FALSE) );
- draw_pt_so_emit_prepare( fpme->so_emit );
+ draw_pt_so_emit_prepare( fpme->so_emit, TRUE );
if (!(opt & PT_PIPELINE)) {
draw_pt_emit_prepare( fpme->emit,
diff --git a/src/gallium/auxiliary/draw/draw_pt_so_emit.c b/src/gallium/auxiliary/draw/draw_pt_so_emit.c
index 80a164a0d7d..13d8470e4ec 100644
--- a/src/gallium/auxiliary/draw/draw_pt_so_emit.c
+++ b/src/gallium/auxiliary/draw/draw_pt_so_emit.c
@@ -42,20 +42,24 @@ struct pt_so_emit {
unsigned input_vertex_stride;
const float (*inputs)[4];
-
+ const float (*pre_clip_pos)[4];
boolean has_so;
-
+ boolean use_pre_clip_pos;
+ int pos_idx;
unsigned emitted_primitives;
unsigned emitted_vertices;
unsigned generated_primitives;
};
-void draw_pt_so_emit_prepare(struct pt_so_emit *emit)
+void draw_pt_so_emit_prepare(struct pt_so_emit *emit, boolean use_pre_clip_pos)
{
struct draw_context *draw = emit->draw;
+ emit->use_pre_clip_pos = use_pre_clip_pos;
emit->has_so = (draw->vs.vertex_shader->state.stream_output.num_outputs > 0);
+ if (use_pre_clip_pos)
+ emit->pos_idx = draw_current_shader_position_output(draw);
/* if we have a state with outputs make sure we have
* buffers to output to */
@@ -87,12 +91,15 @@ static void so_emit_prim(struct pt_so_emit *so,
unsigned input_vertex_stride = so->input_vertex_stride;
struct draw_context *draw = so->draw;
const float (*input_ptr)[4];
+ const float (*pcp_ptr)[4] = NULL;
const struct pipe_stream_output_info *state =
&draw->vs.vertex_shader->state.stream_output;
float *buffer;
int buffer_total_bytes[PIPE_MAX_SO_BUFFERS];
input_ptr = so->inputs;
+ if (so->use_pre_clip_pos)
+ pcp_ptr = so->pre_clip_pos;
++so->generated_primitives;
@@ -117,12 +124,17 @@ static void so_emit_prim(struct pt_so_emit *so,
for (i = 0; i < num_vertices; ++i) {
const float (*input)[4];
+ const float (*pre_clip_pos)[4];
unsigned total_written_compos = 0;
int ob;
/*debug_printf("%d) vertex index = %d (prim idx = %d)\n", i, indices[i], prim_idx);*/
input = (const float (*)[4])(
(const char *)input_ptr + (indices[i] * input_vertex_stride));
+ if (pcp_ptr)
+ pre_clip_pos = (const float (*)[4])(
+ (const char *)pcp_ptr + (indices[i] * input_vertex_stride));
+
for (slot = 0; slot < state->num_outputs; ++slot) {
unsigned idx = state->output[slot].register_index;
unsigned start_comp = state->output[slot].start_component;
@@ -133,7 +145,10 @@ static void so_emit_prim(struct pt_so_emit *so,
buffer = (float *)((char *)draw->so.targets[ob]->mapping +
draw->so.targets[ob]->target.buffer_offset +
draw->so.targets[ob]->internal_offset) + state->output[slot].dst_offset;
- memcpy(buffer, &input[idx][start_comp], num_comps * sizeof(float));
+ if (idx == so->pos_idx && pcp_ptr)
+ memcpy(buffer, &pre_clip_pos[start_comp], num_comps * sizeof(float));
+ else
+ memcpy(buffer, &input[idx][start_comp], num_comps * sizeof(float));
total_written_compos += num_comps;
}
for (ob = 0; ob < draw->so.num_targets; ++ob)
@@ -203,6 +218,9 @@ void draw_pt_so_emit( struct pt_so_emit *emit,
emit->emitted_primitives = 0;
emit->generated_primitives = 0;
emit->input_vertex_stride = input_verts->stride;
+ if (emit->use_pre_clip_pos)
+ emit->pre_clip_pos = (const float (*)[4])input_verts->verts->pre_clip_pos;
+
emit->inputs = (const float (*)[4])input_verts->verts->data;
/* XXX: need to flush to get prim_vbuf.c to release its allocation??*/
diff --git a/src/gallium/auxiliary/draw/draw_vs.c b/src/gallium/auxiliary/draw/draw_vs.c
index 785a9032fdf..266cca713e1 100644
--- a/src/gallium/auxiliary/draw/draw_vs.c
+++ b/src/gallium/auxiliary/draw/draw_vs.c
@@ -80,6 +80,7 @@ draw_create_vertex_shader(struct draw_context *draw,
{
uint i;
bool found_clipvertex = FALSE;
+ vs->position_output = -1;
for (i = 0; i < vs->info.num_outputs; i++) {
if (vs->info.output_semantic_name[i] == TGSI_SEMANTIC_POSITION &&
vs->info.output_semantic_index[i] == 0)