From 6d2f59ce5494a9435b6b3d3faa1d94ba6caad100 Mon Sep 17 00:00:00 2001
From: Marek Olšák <maraeo@gmail.com>
Date: Thu, 13 Sep 2012 00:34:01 +0200
Subject: i915g: implement blit

Reviewed-by: Brian Paul <brianp@vmware.com>
---
 src/gallium/drivers/i915/i915_surface.c | 73 ++++++++++++++++++++++++---------
 1 file changed, 54 insertions(+), 19 deletions(-)

(limited to 'src/gallium/drivers/i915/i915_surface.c')

diff --git a/src/gallium/drivers/i915/i915_surface.c b/src/gallium/drivers/i915/i915_surface.c
index 99837fe7658..4bb5f4800cf 100644
--- a/src/gallium/drivers/i915/i915_surface.c
+++ b/src/gallium/drivers/i915/i915_surface.c
@@ -43,6 +43,31 @@
  * surface functions using the render engine
  */
 
+static void
+i915_util_blitter_save_states(struct i915_context *i915)
+{
+   util_blitter_save_blend(i915->blitter, (void *)i915->blend);
+   util_blitter_save_depth_stencil_alpha(i915->blitter, (void *)i915->depth_stencil);
+   util_blitter_save_stencil_ref(i915->blitter, &i915->stencil_ref);
+   util_blitter_save_rasterizer(i915->blitter, (void *)i915->rasterizer);
+   util_blitter_save_fragment_shader(i915->blitter, i915->saved_fs);
+   util_blitter_save_vertex_shader(i915->blitter, i915->saved_vs);
+   util_blitter_save_viewport(i915->blitter, &i915->viewport);
+   util_blitter_save_scissor(i915->blitter, &i915->scissor);
+   util_blitter_save_vertex_elements(i915->blitter, i915->saved_velems);
+   util_blitter_save_vertex_buffers(i915->blitter, i915->saved_nr_vertex_buffers,
+                                    i915->saved_vertex_buffers);
+
+   util_blitter_save_framebuffer(i915->blitter, &i915->framebuffer);
+
+   util_blitter_save_fragment_sampler_states(i915->blitter,
+                                             i915->saved_nr_samplers,
+                                             i915->saved_samplers);
+   util_blitter_save_fragment_sampler_views(i915->blitter,
+                                            i915->saved_nr_sampler_views,
+                                            i915->saved_sampler_views);
+}
+
 static void
 i915_surface_copy_render(struct pipe_context *pipe,
                          struct pipe_resource *dst, unsigned dst_level,
@@ -66,25 +91,7 @@ i915_surface_copy_render(struct pipe_context *pipe,
       return;
    }
 
-   util_blitter_save_blend(i915->blitter, (void *)i915->blend);
-   util_blitter_save_depth_stencil_alpha(i915->blitter, (void *)i915->depth_stencil);
-   util_blitter_save_stencil_ref(i915->blitter, &i915->stencil_ref);
-   util_blitter_save_rasterizer(i915->blitter, (void *)i915->rasterizer);
-   util_blitter_save_fragment_shader(i915->blitter, i915->saved_fs);
-   util_blitter_save_vertex_shader(i915->blitter, i915->saved_vs);
-   util_blitter_save_viewport(i915->blitter, &i915->viewport);
-   util_blitter_save_vertex_elements(i915->blitter, i915->saved_velems);
-   util_blitter_save_vertex_buffers(i915->blitter, i915->saved_nr_vertex_buffers,
-                                    i915->saved_vertex_buffers);
-
-   util_blitter_save_framebuffer(i915->blitter, &i915->framebuffer);
-
-   util_blitter_save_fragment_sampler_states(i915->blitter,
-                                             i915->saved_nr_samplers,
-                                             i915->saved_samplers);
-   util_blitter_save_fragment_sampler_views(i915->blitter,
-                                            i915->saved_nr_sampler_views,
-                                            i915->saved_sampler_views);
+   i915_util_blitter_save_states(i915);
 
    util_blitter_copy_texture(i915->blitter, dst, dst_level, dstx, dsty, dstz,
                             src, src_level, src_box, PIPE_MASK_RGBAZS, TRUE);
@@ -205,6 +212,33 @@ i915_surface_copy_blitter(struct pipe_context *pipe,
                    (short) src_box->width, (short) src_box->height );
 }
 
+static void
+i915_blit(struct pipe_context *pipe, const struct pipe_blit_info *blit_info)
+{
+   struct i915_context *i915 = i915_context(pipe);
+   struct pipe_blit_info info = *blit_info;
+
+   if (util_try_blit_via_copy_region(pipe, &info)) {
+      return; /* done */
+   }
+
+   if (info.mask & PIPE_MASK_S) {
+      debug_printf("i915: cannot blit stencil, skipping\n");
+      info.mask &= ~PIPE_MASK_S;
+   }
+
+   if (!util_blitter_is_blit_supported(i915->blitter, &info)) {
+      debug_printf("i915: blit unsupported %s -> %s\n",
+                   util_format_short_name(info.src.resource->format),
+                   util_format_short_name(info.dst.resource->format));
+      return;
+   }
+
+   i915_util_blitter_save_states(i915);
+
+   util_blitter_blit(i915->blitter, &info);
+}
+
 static void
 i915_clear_render_target_blitter(struct pipe_context *pipe,
                                  struct pipe_surface *dst,
@@ -325,6 +359,7 @@ i915_init_surface_functions(struct i915_context *i915)
       i915->base.clear_render_target = i915_clear_render_target_render;
       i915->base.clear_depth_stencil = i915_clear_depth_stencil_render;
    }
+   i915->base.blit = i915_blit;
    i915->base.create_surface = i915_create_surface;
    i915->base.surface_destroy = i915_surface_destroy;
 }
-- 
cgit v1.2.3