diff options
| -rw-r--r-- | src/gallium/drivers/radeonsi/si_blit.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/src/gallium/drivers/radeonsi/si_blit.c b/src/gallium/drivers/radeonsi/si_blit.c index d320ac42651..31f22c4acf7 100644 --- a/src/gallium/drivers/radeonsi/si_blit.c +++ b/src/gallium/drivers/radeonsi/si_blit.c @@ -737,9 +737,69 @@ static void si_flush_resource(struct pipe_context *ctx, } } +static void si_pipe_clear_buffer(struct pipe_context *ctx, + struct pipe_resource *dst, + unsigned offset, unsigned size, + const void *clear_value_ptr, + int clear_value_size) +{ + struct si_context *sctx = (struct si_context*)ctx; + uint32_t dword_value; + unsigned i; + + assert(offset % clear_value_size == 0); + assert(size % clear_value_size == 0); + + if (clear_value_size > 4) { + const uint32_t *u32 = clear_value_ptr; + bool clear_dword_duplicated = true; + + /* See if we can lower large fills to dword fills. */ + for (i = 1; i < clear_value_size / 4; i++) + if (u32[0] != u32[i]) { + clear_dword_duplicated = false; + break; + } + + if (!clear_dword_duplicated) { + /* Use transform feedback for 64-bit, 96-bit, and + * 128-bit fills. + */ + union pipe_color_union clear_value; + + memcpy(&clear_value, clear_value_ptr, clear_value_size); + si_blitter_begin(ctx, SI_DISABLE_RENDER_COND); + util_blitter_clear_buffer(sctx->blitter, dst, offset, + size, clear_value_size / 4, + &clear_value); + si_blitter_end(ctx); + return; + } + } + + /* Expand the clear value to a dword. */ + switch (clear_value_size) { + case 1: + dword_value = *(uint8_t*)clear_value_ptr; + dword_value |= (dword_value << 8) | + (dword_value << 16) | + (dword_value << 24); + break; + case 2: + dword_value = *(uint16_t*)clear_value_ptr; + dword_value |= dword_value << 16; + break; + default: + dword_value = *(uint32_t*)clear_value_ptr; + } + + sctx->b.clear_buffer(ctx, dst, offset, size, dword_value, false); +} + void si_init_blit_functions(struct si_context *sctx) { sctx->b.b.clear = si_clear; + sctx->b.b.clear_buffer = si_pipe_clear_buffer; sctx->b.b.clear_render_target = si_clear_render_target; sctx->b.b.clear_depth_stencil = si_clear_depth_stencil; sctx->b.b.resource_copy_region = si_resource_copy_region; |