gallium/radeon: eliminate fast color clear before sharing
[mesa.git] / src / gallium / drivers / radeonsi / si_blit.c
index 082ea850675a4e713b038a4467be8a4e0db22a4a..53c67055a5ec78646509f9e18bd42456d2b7a27d 100644 (file)
@@ -29,20 +29,23 @@ enum si_blitter_op /* bitmask */
 {
        SI_SAVE_TEXTURES      = 1,
        SI_SAVE_FRAMEBUFFER   = 2,
-       SI_DISABLE_RENDER_COND = 4,
+       SI_SAVE_FRAGMENT_STATE = 4,
+       SI_DISABLE_RENDER_COND = 8,
 
-       SI_CLEAR         = 0,
+       SI_CLEAR         = SI_SAVE_FRAGMENT_STATE,
 
-       SI_CLEAR_SURFACE = SI_SAVE_FRAMEBUFFER,
+       SI_CLEAR_SURFACE = SI_SAVE_FRAMEBUFFER | SI_SAVE_FRAGMENT_STATE,
 
        SI_COPY          = SI_SAVE_FRAMEBUFFER | SI_SAVE_TEXTURES |
-                          SI_DISABLE_RENDER_COND,
+                          SI_SAVE_FRAGMENT_STATE | SI_DISABLE_RENDER_COND,
 
-       SI_BLIT          = SI_SAVE_FRAMEBUFFER | SI_SAVE_TEXTURES,
+       SI_BLIT          = SI_SAVE_FRAMEBUFFER | SI_SAVE_TEXTURES |
+                          SI_SAVE_FRAGMENT_STATE,
 
-       SI_DECOMPRESS    = SI_SAVE_FRAMEBUFFER | SI_DISABLE_RENDER_COND,
+       SI_DECOMPRESS    = SI_SAVE_FRAMEBUFFER | SI_SAVE_FRAGMENT_STATE |
+                          SI_DISABLE_RENDER_COND,
 
-       SI_COLOR_RESOLVE = SI_SAVE_FRAMEBUFFER
+       SI_COLOR_RESOLVE = SI_SAVE_FRAMEBUFFER | SI_SAVE_FRAGMENT_STATE
 };
 
 static void si_blitter_begin(struct pipe_context *ctx, enum si_blitter_op op)
@@ -51,22 +54,25 @@ static void si_blitter_begin(struct pipe_context *ctx, enum si_blitter_op op)
 
        r600_suspend_nontimer_queries(&sctx->b);
 
-       util_blitter_save_blend(sctx->blitter, sctx->queued.named.blend);
-       util_blitter_save_depth_stencil_alpha(sctx->blitter, sctx->queued.named.dsa);
-       util_blitter_save_stencil_ref(sctx->blitter, &sctx->stencil_ref.state);
-       util_blitter_save_rasterizer(sctx->blitter, sctx->queued.named.rasterizer);
-       util_blitter_save_fragment_shader(sctx->blitter, sctx->ps_shader.cso);
-       util_blitter_save_geometry_shader(sctx->blitter, sctx->gs_shader.cso);
+       util_blitter_save_vertex_buffer_slot(sctx->blitter, sctx->vertex_buffer);
+       util_blitter_save_vertex_elements(sctx->blitter, sctx->vertex_elements);
+       util_blitter_save_vertex_shader(sctx->blitter, sctx->vs_shader.cso);
        util_blitter_save_tessctrl_shader(sctx->blitter, sctx->tcs_shader.cso);
        util_blitter_save_tesseval_shader(sctx->blitter, sctx->tes_shader.cso);
-       util_blitter_save_vertex_shader(sctx->blitter, sctx->vs_shader.cso);
-       util_blitter_save_vertex_elements(sctx->blitter, sctx->vertex_elements);
-       util_blitter_save_sample_mask(sctx->blitter, sctx->sample_mask.sample_mask);
-       util_blitter_save_viewport(sctx->blitter, &sctx->viewports.states[0]);
-       util_blitter_save_scissor(sctx->blitter, &sctx->scissors.states[0]);
-       util_blitter_save_vertex_buffer_slot(sctx->blitter, sctx->vertex_buffer);
+       util_blitter_save_geometry_shader(sctx->blitter, sctx->gs_shader.cso);
        util_blitter_save_so_targets(sctx->blitter, sctx->b.streamout.num_targets,
                                     (struct pipe_stream_output_target**)sctx->b.streamout.targets);
+       util_blitter_save_rasterizer(sctx->blitter, sctx->queued.named.rasterizer);
+
+       if (op & SI_SAVE_FRAGMENT_STATE) {
+               util_blitter_save_blend(sctx->blitter, sctx->queued.named.blend);
+               util_blitter_save_depth_stencil_alpha(sctx->blitter, sctx->queued.named.dsa);
+               util_blitter_save_stencil_ref(sctx->blitter, &sctx->stencil_ref.state);
+               util_blitter_save_fragment_shader(sctx->blitter, sctx->ps_shader.cso);
+               util_blitter_save_sample_mask(sctx->blitter, sctx->sample_mask.sample_mask);
+               util_blitter_save_viewport(sctx->blitter, &sctx->viewports.states[0]);
+               util_blitter_save_scissor(sctx->blitter, &sctx->scissors.states[0]);
+       }
 
        if (op & SI_SAVE_FRAMEBUFFER)
                util_blitter_save_framebuffer(sctx->blitter, &sctx->framebuffer.state);
@@ -74,23 +80,21 @@ static void si_blitter_begin(struct pipe_context *ctx, enum si_blitter_op op)
        if (op & SI_SAVE_TEXTURES) {
                util_blitter_save_fragment_sampler_states(
                        sctx->blitter, 2,
-                       sctx->samplers[PIPE_SHADER_FRAGMENT].states.saved_states);
+                       sctx->samplers[PIPE_SHADER_FRAGMENT].views.sampler_states);
 
                util_blitter_save_fragment_sampler_views(sctx->blitter, 2,
                        sctx->samplers[PIPE_SHADER_FRAGMENT].views.views);
        }
 
-       if ((op & SI_DISABLE_RENDER_COND) && sctx->b.current_render_cond) {
-               util_blitter_save_render_condition(sctx->blitter,
-                                                   sctx->b.current_render_cond,
-                                                   sctx->b.current_render_cond_cond,
-                                                   sctx->b.current_render_cond_mode);
-       }
+       if (op & SI_DISABLE_RENDER_COND)
+               sctx->b.render_cond_force_off = true;
 }
 
 static void si_blitter_end(struct pipe_context *ctx)
 {
        struct si_context *sctx = (struct si_context *)ctx;
+
+       sctx->b.render_cond_force_off = false;
        r600_resume_nontimer_queries(&sctx->b);
 }
 
@@ -326,7 +330,7 @@ void si_decompress_color_textures(struct si_context *sctx,
                assert(view);
 
                tex = (struct r600_texture *)view->texture;
-               assert(tex->cmask.size || tex->fmask.size);
+               assert(tex->cmask.size || tex->fmask.size || tex->dcc_buffer);
 
                si_blit_decompress_color(&sctx->b.b, tex,
                                         view->u.tex.first_level, view->u.tex.last_level,
@@ -373,22 +377,39 @@ static void si_clear(struct pipe_context *ctx, unsigned buffers,
                }
        }
 
-       if (buffers & PIPE_CLEAR_DEPTH &&
-           zstex && zstex->htile_buffer &&
+       if (zstex && zstex->htile_buffer &&
            zsbuf->u.tex.level == 0 &&
            zsbuf->u.tex.first_layer == 0 &&
            zsbuf->u.tex.last_layer == util_max_layer(&zstex->resource.b.b, 0)) {
-               /* Need to disable EXPCLEAR temporarily if clearing
-                * to a new value. */
-               if (zstex->depth_cleared && zstex->depth_clear_value != depth) {
-                       sctx->db_depth_disable_expclear = true;
+               if (buffers & PIPE_CLEAR_DEPTH) {
+                       /* Need to disable EXPCLEAR temporarily if clearing
+                        * to a new value. */
+                       if (zstex->depth_cleared && zstex->depth_clear_value != depth) {
+                               sctx->db_depth_disable_expclear = true;
+                       }
+
+                       zstex->depth_clear_value = depth;
+                       sctx->framebuffer.dirty_zsbuf = true;
+                       si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); /* updates DB_DEPTH_CLEAR */
+                       sctx->db_depth_clear = true;
+                       si_mark_atom_dirty(sctx, &sctx->db_render_state);
                }
 
-               zstex->depth_clear_value = depth;
-               sctx->framebuffer.dirty_zsbuf = true;
-               si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); /* updates DB_DEPTH_CLEAR */
-               sctx->db_depth_clear = true;
-               si_mark_atom_dirty(sctx, &sctx->db_render_state);
+               if (buffers & PIPE_CLEAR_STENCIL) {
+                       stencil &= 0xff;
+
+                       /* Need to disable EXPCLEAR temporarily if clearing
+                        * to a new value. */
+                       if (zstex->stencil_cleared && zstex->stencil_clear_value != stencil) {
+                               sctx->db_stencil_disable_expclear = true;
+                       }
+
+                       zstex->stencil_clear_value = stencil;
+                       sctx->framebuffer.dirty_zsbuf = true;
+                       si_mark_atom_dirty(sctx, &sctx->framebuffer.atom); /* updates DB_STENCIL_CLEAR */
+                       sctx->db_stencil_clear = true;
+                       si_mark_atom_dirty(sctx, &sctx->db_render_state);
+               }
        }
 
        si_blitter_begin(ctx, SI_CLEAR);
@@ -403,6 +424,13 @@ static void si_clear(struct pipe_context *ctx, unsigned buffers,
                zstex->depth_cleared = true;
                si_mark_atom_dirty(sctx, &sctx->db_render_state);
        }
+
+       if (sctx->db_stencil_clear) {
+               sctx->db_stencil_clear = false;
+               sctx->db_stencil_disable_expclear = false;
+               zstex->stencil_cleared = true;
+               si_mark_atom_dirty(sctx, &sctx->db_render_state);
+       }
 }
 
 static void si_clear_render_target(struct pipe_context *ctx,
@@ -455,7 +483,7 @@ static void si_decompress_subresource(struct pipe_context *ctx,
                        si_blit_decompress_depth_in_place(sctx, rtex, true,
                                                          level, level,
                                                          first_layer, last_layer);
-       } else if (rtex->fmask.size || rtex->cmask.size) {
+       } else if (rtex->fmask.size || rtex->cmask.size || rtex->dcc_buffer) {
                si_blit_decompress_color(ctx, rtex, level, level,
                                         first_layer, last_layer);
        }
@@ -507,7 +535,7 @@ void si_resource_copy_region(struct pipe_context *ctx,
        util_blitter_default_dst_texture(&dst_templ, dst, dst_level, dstz);
        util_blitter_default_src_texture(&src_templ, src, src_level);
 
-       if (util_format_is_compressed(src->format) &&
+       if (util_format_is_compressed(src->format) ||
            util_format_is_compressed(dst->format)) {
                unsigned blocksize = util_format_get_blocksize(src->format);
 
@@ -536,7 +564,7 @@ void si_resource_copy_region(struct pipe_context *ctx,
                src_force_level = src_level;
        } else if (!util_blitter_is_copy_supported(sctx->blitter, dst, src) ||
                   /* also *8_SNORM has precision issues, use UNORM instead */
-                  util_format_is_snorm(src->format)) {
+                  util_format_is_snorm8(src->format)) {
                if (util_format_is_subsampled_422(src->format)) {
                        src_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
                        dst_templ.format = PIPE_FORMAT_R8G8B8A8_UINT;
@@ -652,6 +680,14 @@ static bool do_hardware_msaa_resolve(struct pipe_context *ctx,
        enum pipe_format format = int_to_norm_format(info->dst.format);
        unsigned sample_mask = ~0;
 
+       /* Hardware MSAA resolve doesn't work if SPI format = NORM16_ABGR and
+        * the format is R16G16. Use R16A16, which does work.
+        */
+       if (format == PIPE_FORMAT_R16G16_UNORM)
+               format = PIPE_FORMAT_R16A16_UNORM;
+       if (format == PIPE_FORMAT_R16G16_SNORM)
+               format = PIPE_FORMAT_R16A16_SNORM;
+
        if (info->src.resource->nr_samples > 1 &&
            info->dst.resource->nr_samples <= 1 &&
            util_max_layer(info->src.resource, 0) == 0 &&
@@ -675,7 +711,8 @@ static bool do_hardware_msaa_resolve(struct pipe_context *ctx,
            info->src.box.depth == 1 &&
            dst->surface.level[info->dst.level].mode >= RADEON_SURF_MODE_1D &&
            !(dst->surface.flags & RADEON_SURF_SCANOUT) &&
-           (!dst->cmask.size || !dst->dirty_level_mask) /* dst cannot be fast-cleared */) {
+           (!dst->cmask.size || !dst->dirty_level_mask) && /* dst cannot be fast-cleared */
+           !dst->dcc_buffer) {
                si_blitter_begin(ctx, SI_COLOR_RESOLVE |
                                 (info->render_condition_enable ? 0 : SI_DISABLE_RENDER_COND));
                util_blitter_custom_resolve_color(sctx->blitter,
@@ -724,15 +761,75 @@ static void si_flush_resource(struct pipe_context *ctx,
 
        assert(res->target != PIPE_BUFFER);
 
-       if (!rtex->is_depth && rtex->cmask.size) {
+       if (!rtex->is_depth && (rtex->cmask.size || rtex->dcc_buffer)) {
                si_blit_decompress_color(ctx, rtex, 0, res->last_level,
                                         0, util_max_layer(res, 0));
        }
 }
 
+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;