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llvmpipe: handle vulkan conditional rendering

Browse source 
This implements the new hook to conditionialise rendering
on memory contents

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8182>
This commit is contained in:
Dave Airlie 2020-12-04 17:03:11 +10:00
parent 86328fc7b7
commit 9cc3328842
3 changed files with 22 additions and 0 deletions
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14
src/gallium/drivers/llvmpipe/lp_context.c
View file

@ -132,6 +132,19 @@ llvmpipe_render_condition(struct pipe_context *pipe,
llvmpipe->render_cond_cond = condition;
}
static void
llvmpipe_render_condition_mem(struct pipe_context *pipe,
struct pipe_resource *buffer,
unsigned offset,
bool condition)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
llvmpipe->render_cond_buffer = llvmpipe_resource(buffer);
llvmpipe->render_cond_offset = offset;
llvmpipe->render_cond_cond = condition;
}
static void
llvmpipe_texture_barrier(struct pipe_context *pipe, unsigned flags)
{
@ -191,6 +204,7 @@ llvmpipe_create_context(struct pipe_screen *screen, void *priv,
llvmpipe->pipe.texture_barrier = llvmpipe_texture_barrier;
llvmpipe->pipe.render_condition = llvmpipe_render_condition;
llvmpipe->pipe.render_condition_mem = llvmpipe_render_condition_mem;
llvmpipe->pipe.get_device_reset_status = llvmpipe_get_device_reset_status;
llvmpipe_init_blend_funcs(llvmpipe);

4
src/gallium/drivers/llvmpipe/lp_context.h
View file

@ -170,6 +170,10 @@ struct llvmpipe_context {
enum pipe_render_cond_flag render_cond_mode;
boolean render_cond_cond;
/** VK render cond */
struct llvmpipe_resource *render_cond_buffer;
unsigned render_cond_offset;
/** The LLVMContext to use for LLVM related work */
LLVMContextRef context;

4
src/gallium/drivers/llvmpipe/lp_query.c
View file

@ -509,6 +509,10 @@ llvmpipe_check_render_cond(struct llvmpipe_context *lp)
boolean b, wait;
uint64_t result;
if (lp->render_cond_buffer) {
uint32_t data = *(uint32_t *)((char *)lp->render_cond_buffer->data + lp->render_cond_offset);
return (!data) == lp->render_cond_cond;
}
if (!lp->render_cond_query)
return TRUE; /* no query predicate, draw normally */