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iris: Always emit at least one BLEND_STATE

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This commit is contained in:
Kenneth Graunke 2019-02-15 14:22:52 -08:00
parent d6dd57d43c
commit 51ddc40084
1 changed files with 8 additions and 1 deletions
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9
src/gallium/drivers/iris/iris_state.c
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@ -4140,7 +4140,14 @@ iris_upload_dirty_render_state(struct iris_context *ice,
struct pipe_framebuffer_state *cso_fb = &ice->state.framebuffer;
struct iris_depth_stencil_alpha_state *cso_zsa = ice->state.cso_zsa;
const int header_dwords = GENX(BLEND_STATE_length);
const int rt_dwords = cso_fb->nr_cbufs * GENX(BLEND_STATE_ENTRY_length);
/* Always write at least one BLEND_STATE - the final RT message will
* reference BLEND_STATE[0] even if there aren't color writes. There
* may still be alpha testing, computed depth, and so on.
*/
const int rt_dwords =
MAX2(cso_fb->nr_cbufs, 1) * GENX(BLEND_STATE_ENTRY_length);
uint32_t blend_offset;
uint32_t *blend_map =
stream_state(batch, ice->state.dynamic_uploader,