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u_blitter: add a custom blitter call passing a dsa cso 

reimplement the flush stage added for r300 to allow a custom DSA stage
to be used in the pipeline, this allows for r600 hw DB->CB flushes.
This commit is contained in:
Dave Airlie 2010-09-23 14:18:22 +10:00
parent 881c05aa1e
commit c262c4a2ff
2 changed files with 37 additions and 14 deletions
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45
src/gallium/auxiliary/util/u_blitter.c
View File

@ -964,16 +964,18 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
blitter_restore_CSOs(ctx);
}
/* Clear a region of a depth stencil surface. */
void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
struct pipe_surface *dstsurf)
/* draw a rectangle across a region using a custom dsa stage - for r600g */
void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
struct pipe_surface *zsurf,
struct pipe_surface *cbsurf,
void *dsa_stage, float depth)
{
struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
struct pipe_context *pipe = ctx->base.pipe;
struct pipe_framebuffer_state fb_state;
assert(dstsurf->texture);
if (!dstsurf->texture)
assert(zsurf->texture);
if (!zsurf->texture)
return;
/* check the saved state */
@ -981,8 +983,8 @@ void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
assert(blitter->saved_fb_state.nr_cbufs != ~0);
/* bind CSOs */
pipe->bind_blend_state(pipe, ctx->blend_keep_color);
pipe->bind_depth_stencil_alpha_state(pipe, ctx->dsa_flush_depth_stencil);
pipe->bind_blend_state(pipe, ctx->blend_write_color);
pipe->bind_depth_stencil_alpha_state(pipe, dsa_stage);
pipe->bind_rasterizer_state(pipe, ctx->rs_state);
pipe->bind_fs_state(pipe, blitter_get_fs_col(ctx, 0));
@ -990,15 +992,30 @@ void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
pipe->bind_vertex_elements_state(pipe, ctx->velem_state);
/* set a framebuffer state */
fb_state.width = dstsurf->width;
fb_state.height = dstsurf->height;
fb_state.nr_cbufs = 0;
fb_state.cbufs[0] = 0;
fb_state.zsbuf = dstsurf;
fb_state.width = zsurf->width;
fb_state.height = zsurf->height;
fb_state.nr_cbufs = 1;
if (cbsurf) {
fb_state.cbufs[0] = cbsurf;
fb_state.nr_cbufs = 1;
} else {
fb_state.cbufs[0] = NULL;
fb_state.nr_cbufs = 0;
}
fb_state.zsbuf = zsurf;
pipe->set_framebuffer_state(pipe, &fb_state);
blitter_set_dst_dimensions(ctx, dstsurf->width, dstsurf->height);
blitter->draw_rectangle(blitter, 0, 0, dstsurf->width, dstsurf->height, 0,
blitter_set_dst_dimensions(ctx, zsurf->width, zsurf->height);
blitter->draw_rectangle(blitter, 0, 0, zsurf->width, zsurf->height, depth,
UTIL_BLITTER_ATTRIB_NONE, NULL);
blitter_restore_CSOs(ctx);
}
/* flush a region of a depth stencil surface for r300g */
void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
struct pipe_surface *dstsurf)
{
struct blitter_context_priv *ctx = (struct blitter_context_priv*)blitter;
util_blitter_custom_depth_stencil(blitter, dstsurf, NULL,
ctx->dsa_flush_depth_stencil, 0.0f);
}

6
src/gallium/auxiliary/util/u_blitter.h
View File

@ -203,6 +203,12 @@ void util_blitter_clear_depth_stencil(struct blitter_context *blitter,
void util_blitter_flush_depth_stencil(struct blitter_context *blitter,
struct pipe_surface *dstsurf);
void util_blitter_custom_depth_stencil(struct blitter_context *blitter,
struct pipe_surface *zsurf,
struct pipe_surface *cbsurf,
void *dsa_stage, float depth);
/* The functions below should be used to save currently bound constant state
* objects inside a driver. The objects are automatically restored at the end
* of the util_blitter_{clear, copy_region, fill_region} functions and then