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gallium/u_blitter: add helper to save FS const buffer state 

Not (currently) state that is overwridden by u_blitter itself, but
drivers with custom blit/clear which are reusing part of the u_blitter
infrastructure will use it.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Rob Clark 2016-08-13 10:36:00 -04:00
parent 433e12fea8
commit 2b2f436c69
2 changed files with 25 additions and 0 deletions
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10
src/gallium/auxiliary/util/u_blitter.c
View File

@ -283,6 +283,7 @@ struct blitter_context *util_blitter_create(struct pipe_context *pipe)
ctx->rs_discard_state = pipe->create_rasterizer_state(pipe, &rs_state);
}
ctx->base.cb_slot = 0; /* 0 for now */
ctx->base.vb_slot = 0; /* 0 for now */
/* vertex elements states */
@ -698,6 +699,15 @@ void util_blitter_restore_textures(struct blitter_context *blitter)
ctx->base.saved_num_sampler_views = ~0;
}
void util_blitter_restore_constant_buffer_state(struct blitter_context *blitter)
{
struct pipe_context *pipe = blitter->pipe;
pipe->set_constant_buffer(pipe, PIPE_SHADER_FRAGMENT, blitter->cb_slot,
&blitter->saved_fs_constant_buffer);
pipe_resource_reference(&blitter->saved_fs_constant_buffer.buffer, NULL);
}
static void blitter_set_rectangle(struct blitter_context_priv *ctx,
int x1, int y1, int x2, int y2,
float depth)

15
src/gallium/auxiliary/util/u_blitter.h
View File

@ -111,6 +111,9 @@ struct blitter_context
unsigned saved_num_sampler_views;
struct pipe_sampler_view *saved_sampler_views[PIPE_MAX_SAMPLERS];
unsigned cb_slot;
struct pipe_constant_buffer saved_fs_constant_buffer;
unsigned vb_slot;
struct pipe_vertex_buffer saved_vertex_buffer;
@ -485,6 +488,17 @@ util_blitter_save_fragment_sampler_views(struct blitter_context *blitter,
views[i]);
}
static inline void
util_blitter_save_fragment_constant_buffer_slot(
struct blitter_context *blitter,
struct pipe_constant_buffer *constant_buffers)
{
pipe_resource_reference(&blitter->saved_fs_constant_buffer.buffer,
constant_buffers[blitter->cb_slot].buffer);
memcpy(&blitter->saved_fs_constant_buffer, &constant_buffers[blitter->cb_slot],
sizeof(struct pipe_constant_buffer));
}
static inline void
util_blitter_save_vertex_buffer_slot(struct blitter_context *blitter,
struct pipe_vertex_buffer *vertex_buffers)
@ -536,6 +550,7 @@ void util_blitter_restore_fragment_states(struct blitter_context *blitter);
void util_blitter_restore_render_cond(struct blitter_context *blitter);
void util_blitter_restore_fb_state(struct blitter_context *blitter);
void util_blitter_restore_textures(struct blitter_context *blitter);
void util_blitter_restore_constant_buffer_state(struct blitter_context *blitter);
#ifdef __cplusplus
}