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vc4: Move shader record setup before the draw call.

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The flush only happens after both are written, so we can do them in either
order.  This will let me compute max_index during the shader record setup.
This commit is contained in:
Eric Anholt 2014-08-12 14:57:39 -07:00
parent ba0c0a186d
commit 61cb08ab4f
1 changed files with 38 additions and 38 deletions
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76
src/gallium/drivers/vc4/vc4_draw.c
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@ -96,49 +96,14 @@ vc4_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
return;
}
struct vc4_vertex_stateobj *vtx = vc4->vtx;
struct vc4_vertexbuf_stateobj *vertexbuf = &vc4->vertexbuf;
vc4_start_draw(vc4);
vc4_update_compiled_shaders(vc4, info->mode);
vc4_emit_state(pctx);
/* the actual draw call. */
struct vc4_vertex_stateobj *vtx = vc4->vtx;
struct vc4_vertexbuf_stateobj *vertexbuf = &vc4->vertexbuf;
cl_u8(&vc4->bcl, VC4_PACKET_GL_SHADER_STATE);
assert(vtx->num_elements <= 8);
/* Note that number of attributes == 0 in the packet means 8
* attributes. This field also contains the offset into shader_rec.
*/
cl_u32(&vc4->bcl, vtx->num_elements & 0x7);
/* Note that the primitive type fields match with OpenGL/gallium
* definitions, up to but not including QUADS.
*/
if (info->indexed) {
struct vc4_resource *rsc = vc4_resource(vc4->indexbuf.buffer);
assert(vc4->indexbuf.index_size == 1 ||
vc4->indexbuf.index_size == 2);
cl_start_reloc(&vc4->bcl, 1);
cl_u8(&vc4->bcl, VC4_PACKET_GL_INDEXED_PRIMITIVE);
cl_u8(&vc4->bcl,
info->mode |
(vc4->indexbuf.index_size == 2 ?
VC4_INDEX_BUFFER_U16:
VC4_INDEX_BUFFER_U8));
cl_u32(&vc4->bcl, info->count);
cl_reloc(vc4, &vc4->bcl, rsc->bo, vc4->indexbuf.offset);
cl_u32(&vc4->bcl, info->max_index);
} else {
cl_u8(&vc4->bcl, VC4_PACKET_GL_ARRAY_PRIMITIVE);
cl_u8(&vc4->bcl, info->mode);
cl_u32(&vc4->bcl, info->count);
cl_u32(&vc4->bcl, info->start);
}
// Shader Record
vc4_write_uniforms(vc4, vc4->prog.fs,
&vc4->constbuf[PIPE_SHADER_FRAGMENT],
&vc4->fragtex,
@ -152,6 +117,7 @@ vc4_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
&vc4->verttex,
1);
/* Emit the shader record. */
cl_start_shader_reloc(&vc4->shader_rec, 3 + vtx->num_elements);
cl_u16(&vc4->shader_rec,
VC4_SHADER_FLAG_ENABLE_CLIPPING |
@ -191,6 +157,40 @@ vc4_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
cl_u8(&vc4->shader_rec, i * 16); /* CS VPM offset */
}
/* the actual draw call. */
cl_u8(&vc4->bcl, VC4_PACKET_GL_SHADER_STATE);
assert(vtx->num_elements <= 8);
/* Note that number of attributes == 0 in the packet means 8
* attributes. This field also contains the offset into shader_rec.
*/
cl_u32(&vc4->bcl, vtx->num_elements & 0x7);
/* Note that the primitive type fields match with OpenGL/gallium
* definitions, up to but not including QUADS.
*/
if (info->indexed) {
struct vc4_resource *rsc = vc4_resource(vc4->indexbuf.buffer);
assert(vc4->indexbuf.index_size == 1 ||
vc4->indexbuf.index_size == 2);
cl_start_reloc(&vc4->bcl, 1);
cl_u8(&vc4->bcl, VC4_PACKET_GL_INDEXED_PRIMITIVE);
cl_u8(&vc4->bcl,
info->mode |
(vc4->indexbuf.index_size == 2 ?
VC4_INDEX_BUFFER_U16:
VC4_INDEX_BUFFER_U8));
cl_u32(&vc4->bcl, info->count);
cl_reloc(vc4, &vc4->bcl, rsc->bo, vc4->indexbuf.offset);
cl_u32(&vc4->bcl, info->max_index);
} else {
cl_u8(&vc4->bcl, VC4_PACKET_GL_ARRAY_PRIMITIVE);
cl_u8(&vc4->bcl, info->mode);
cl_u32(&vc4->bcl, info->count);
cl_u32(&vc4->bcl, info->start);
}
if (vc4->zsa && vc4->zsa->base.depth.enabled) {
vc4->resolve |= PIPE_CLEAR_DEPTH;
}