radeonsi: implement SAMPLEPOS fragment shader input

[mesa.git] / src / gallium / drivers / radeon / r600_pipe_common.h

diff --git a/src/gallium/drivers/radeon/r600_pipe_common.h b/src/gallium/drivers/radeon/r600_pipe_common.h
index b7e4e65cf110a2f7c681f2fd0576286f135fea0c..d82adf5d387cb7e0160213d9dec5f92744f2742c 100644 (file)
--- a/src/gallium/drivers/radeon/r600_pipe_common.h
+++ b/src/gallium/drivers/radeon/r600_pipe_common.h
@@ -357,6 +357,15 @@ struct r600_common_context {
        boolean                         saved_render_cond_cond;
        unsigned                        saved_render_cond_mode;
 
+       /* MSAA sample locations.
+        * The first index is the sample index.
+        * The second index is the coordinate: X, Y. */
+       float                           sample_locations_1x[1][2];
+       float                           sample_locations_2x[2][2];
+       float                           sample_locations_4x[4][2];
+       float                           sample_locations_8x[8][2];
+       float                           sample_locations_16x[16][2];
+
        /* Copy one resource to another using async DMA. */
        void (*dma_copy)(struct pipe_context *ctx,
                         struct pipe_resource *dst,
@@ -472,6 +481,7 @@ extern const uint32_t eg_sample_locs_4x[4];
 extern const unsigned eg_max_dist_4x;
 void cayman_get_sample_position(struct pipe_context *ctx, unsigned sample_count,
                                unsigned sample_index, float *out_value);
+void cayman_init_msaa(struct pipe_context *ctx);
 void cayman_emit_msaa_sample_locs(struct radeon_winsys_cs *cs, int nr_samples);
 void cayman_emit_msaa_config(struct radeon_winsys_cs *cs, int nr_samples,
                             int ps_iter_samples);