r600g: build fetch shader from vertex elements

Vertex elements change are less frequent than draw call, those to
avoid rebuilding fetch shader to often build the fetch shader along
vertex elements. This also allow to move vertex buffer setup out
of draw path and make update to it less frequent.

Shader update can still be improved to only update SPI regs (based
on some rasterizer state like flat shading or point sprite ...).

Signed-off-by: Jerome Glisse <jglisse@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/src/gallium/drivers/r600/r600_asm.h b/src/gallium/drivers/r600/r600_asm.h
index 1be5e4a396..b147f0f5c8 100644
--- a/src/gallium/drivers/r600/r600_asm.h
+++ b/src/gallium/drivers/r600/r600_asm.h
@@ -28,6 +28,9 @@
 #define NUM_OF_CYCLES 3
 #define NUM_OF_COMPONENTS 4
 
+struct r600_vertex_element;
+struct r600_pipe_context;
+
 struct r600_bc_alu_src {
 	unsigned			sel;
 	unsigned			chan;
@@ -188,6 +191,7 @@ struct r600_bc {
 
 /* eg_asm.c */
 int eg_bc_cf_build(struct r600_bc *bc, struct r600_bc_cf *cf);
+void eg_cf_vtx(struct r600_vertex_element *ve, u32 *bytecode, unsigned count);
 
 /* r600_asm.c */
 int r600_bc_init(struct r600_bc *bc, enum radeon_family family);
@@ -201,6 +205,10 @@ int r600_bc_build(struct r600_bc *bc);
 int r600_bc_add_cfinst(struct r600_bc *bc, int inst);
 int r600_bc_add_alu_type(struct r600_bc *bc, const struct r600_bc_alu *alu, int type);
 void r600_bc_dump(struct r600_bc *bc);
+void r600_cf_vtx(struct r600_vertex_element *ve, u32 *bytecode, unsigned count);
+void r600_cf_vtx_tc(struct r600_vertex_element *ve, u32 *bytecode, unsigned count);
+
+int r600_vertex_elements_build_fetch_shader(struct r600_pipe_context *rctx, struct r600_vertex_element *ve);
 
 /* r700_asm.c */
 int r700_bc_alu_build(struct r600_bc *bc, struct r600_bc_alu *alu, unsigned id);