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authorKenneth Graunke <[email protected]>2014-08-07 20:07:25 -0700
committerKenneth Graunke <[email protected]>2014-09-10 11:05:08 -0700
commitc89306983c07e5a88c0d636267e5ccf263cb4213 (patch)
tree9676dcfe56350b71c96d1cdb8b09fb8a3042fcf6 /src/mesa/drivers
parent9975792abd8be891bbe7245cb1d5c347dff65465 (diff)
i965: Calculate start/base_vertex_location after preparing vertices.
Signed-off-by: Kenneth Graunke <[email protected]> Reviewed-by: Ian Romanick <[email protected]>
Diffstat (limited to 'src/mesa/drivers')
-rw-r--r--src/mesa/drivers/dri/i965/brw_context.h8
-rw-r--r--src/mesa/drivers/dri/i965/brw_draw.c17
-rw-r--r--src/mesa/drivers/dri/i965/brw_draw.h2
-rw-r--r--src/mesa/drivers/dri/i965/brw_draw_upload.c12
-rw-r--r--src/mesa/drivers/dri/i965/brw_state_upload.c6
-rw-r--r--src/mesa/drivers/dri/i965/gen8_draw_upload.c1
6 files changed, 34 insertions, 12 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_context.h b/src/mesa/drivers/dri/i965/brw_context.h
index 3bc1ea5d696..25b3298235a 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -1062,6 +1062,14 @@ struct brw_context
bool no_depth_or_stencil;
struct {
+ /** Does the current draw use the index buffer? */
+ bool indexed;
+
+ int start_vertex_location;
+ int base_vertex_location;
+ } draw;
+
+ struct {
struct brw_vertex_element inputs[VERT_ATTRIB_MAX];
struct brw_vertex_buffer buffers[VERT_ATTRIB_MAX];
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c
index 0fa7b6bdf3f..c2866d0dacc 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.c
+++ b/src/mesa/drivers/dri/i965/brw_draw.c
@@ -176,26 +176,19 @@ static void brw_emit_prim(struct brw_context *brw,
{
int verts_per_instance;
int vertex_access_type;
- int start_vertex_location;
- int base_vertex_location;
int indirect_flag;
DBG("PRIM: %s %d %d\n", _mesa_lookup_enum_by_nr(prim->mode),
prim->start, prim->count);
- start_vertex_location = prim->start;
- base_vertex_location = prim->basevertex;
if (prim->indexed) {
vertex_access_type = brw->gen >= 7 ?
GEN7_3DPRIM_VERTEXBUFFER_ACCESS_RANDOM :
GEN4_3DPRIM_VERTEXBUFFER_ACCESS_RANDOM;
- start_vertex_location += brw->ib.start_vertex_offset;
- base_vertex_location += brw->vb.start_vertex_bias;
} else {
vertex_access_type = brw->gen >= 7 ?
GEN7_3DPRIM_VERTEXBUFFER_ACCESS_SEQUENTIAL :
GEN4_3DPRIM_VERTEXBUFFER_ACCESS_SEQUENTIAL;
- start_vertex_location += brw->vb.start_vertex_bias;
}
/* We only need to trim the primitive count on pre-Gen6. */
@@ -270,10 +263,10 @@ static void brw_emit_prim(struct brw_context *brw,
vertex_access_type);
}
OUT_BATCH(verts_per_instance);
- OUT_BATCH(start_vertex_location);
+ OUT_BATCH(brw->draw.start_vertex_location);
OUT_BATCH(prim->num_instances);
OUT_BATCH(prim->base_instance);
- OUT_BATCH(base_vertex_location);
+ OUT_BATCH(brw->draw.base_vertex_location);
ADVANCE_BATCH();
/* Only used on Sandybridge; harmless to set elsewhere. */
@@ -436,12 +429,18 @@ static bool brw_try_draw_prims( struct gl_context *ctx,
brw_merge_inputs(brw, arrays);
}
}
+
+ brw->draw.indexed = prims[i].indexed;
+ brw->draw.start_vertex_location = prims[i].start;
+ brw->draw.base_vertex_location = prims[i].basevertex;
+
if (brw->gen < 6)
brw_set_prim(brw, &prims[i]);
else
gen6_set_prim(brw, &prims[i]);
retry:
+
/* Note that before the loop, brw->state.dirty.brw was set to != 0, and
* that the state updated in the loop outside of this block is that in
* *_set_prim or intel_batchbuffer_flush(), which only impacts
diff --git a/src/mesa/drivers/dri/i965/brw_draw.h b/src/mesa/drivers/dri/i965/brw_draw.h
index 774f1d4684a..fc83dcdd0bb 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.h
+++ b/src/mesa/drivers/dri/i965/brw_draw.h
@@ -47,6 +47,8 @@ void brw_draw_prims( struct gl_context *ctx,
void brw_draw_init( struct brw_context *brw );
void brw_draw_destroy( struct brw_context *brw );
+void brw_prepare_shader_draw_parameters(struct brw_context *);
+
/* brw_primitive_restart.c */
GLboolean
brw_handle_primitive_restart(struct gl_context *ctx,
diff --git a/src/mesa/drivers/dri/i965/brw_draw_upload.c b/src/mesa/drivers/dri/i965/brw_draw_upload.c
index 5d6b766ebc5..38b108751ce 100644
--- a/src/mesa/drivers/dri/i965/brw_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_draw_upload.c
@@ -604,12 +604,24 @@ brw_prepare_vertices(struct brw_context *brw)
brw->vb.nr_buffers = j;
}
+void
+brw_prepare_shader_draw_parameters(struct brw_context *brw)
+{
+ if (brw->draw.indexed) {
+ brw->draw.start_vertex_location += brw->ib.start_vertex_offset;
+ brw->draw.base_vertex_location += brw->vb.start_vertex_bias;
+ } else {
+ brw->draw.start_vertex_location += brw->vb.start_vertex_bias;
+ }
+}
+
static void brw_emit_vertices(struct brw_context *brw)
{
struct gl_context *ctx = &brw->ctx;
GLuint i, nr_elements;
brw_prepare_vertices(brw);
+ brw_prepare_shader_draw_parameters(brw);
brw_emit_query_begin(brw);
diff --git a/src/mesa/drivers/dri/i965/brw_state_upload.c b/src/mesa/drivers/dri/i965/brw_state_upload.c
index 3a452c3a586..e9466212280 100644
--- a/src/mesa/drivers/dri/i965/brw_state_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_state_upload.c
@@ -98,7 +98,7 @@ static const struct brw_tracked_state *gen4_atoms[] =
&brw_psp_urb_cbs,
&brw_drawing_rect,
- &brw_indices,
+ &brw_indices, /* must come before brw_vertices */
&brw_index_buffer,
&brw_vertices,
@@ -169,7 +169,7 @@ static const struct brw_tracked_state *gen6_atoms[] =
&brw_drawing_rect,
- &brw_indices,
+ &brw_indices, /* must come before brw_vertices */
&brw_index_buffer,
&brw_vertices,
};
@@ -244,7 +244,7 @@ static const struct brw_tracked_state *gen7_atoms[] =
&brw_drawing_rect,
- &brw_indices,
+ &brw_indices, /* must come before brw_vertices */
&brw_index_buffer,
&brw_vertices,
diff --git a/src/mesa/drivers/dri/i965/gen8_draw_upload.c b/src/mesa/drivers/dri/i965/gen8_draw_upload.c
index 4d627399ec4..8e4fe5d3bb0 100644
--- a/src/mesa/drivers/dri/i965/gen8_draw_upload.c
+++ b/src/mesa/drivers/dri/i965/gen8_draw_upload.c
@@ -41,6 +41,7 @@ gen8_emit_vertices(struct brw_context *brw)
struct gl_context *ctx = &brw->ctx;
brw_prepare_vertices(brw);
+ brw_prepare_shader_draw_parameters(brw);
if (brw->vs.prog_data->uses_vertexid) {
unsigned vue = brw->vb.nr_enabled;