intel: Add support for ARB_draw_elements_base_vertex.

[mesa.git] / src / mesa / drivers / dri / i965 / brw_wm_surface_state.c

diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index c49a5f6b4ec502b385d69dded35e8dd9c16f7e78..bff2ab97217c977d7b8e10edfc684d4775136b30 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -545,15 +545,20 @@ brw_update_renderbuffer_surface(struct brw_context *brw,
                       irb->texformat->MesaFormat);
       }
       key.tiling = region->tiling;
-      key.width = region->width;
-      key.height = region->height;
+      if (brw->intel.intelScreen->driScrnPriv->dri2.enabled) {
+        key.width = rb->Width;
+        key.height = rb->Height;
+      } else {
+        key.width = region->width;
+        key.height = region->height;
+      }
       key.pitch = region->pitch;
       key.cpp = region->cpp;
       key.draw_offset = region->draw_offset; /* cur 3d or cube face offset */
    } else {
       key.surface_type = BRW_SURFACE_NULL;
       key.surface_format = BRW_SURFACEFORMAT_B8G8R8A8_UNORM;
-      key.tiling = 0;
+      key.tiling = I915_TILING_X;
       key.width = 1;
       key.height = 1;
       key.cpp = 4;
@@ -578,7 +583,27 @@ brw_update_renderbuffer_surface(struct brw_context *brw,
 
       surf.ss0.surface_format = key.surface_format;
       surf.ss0.surface_type = key.surface_type;
-      surf.ss1.base_addr =  key.draw_offset;
+      if (key.tiling == I915_TILING_NONE) {
+        surf.ss1.base_addr = key.draw_offset;
+      } else {
+        uint32_t tile_offset = key.draw_offset % 4096;
+
+        surf.ss1.base_addr = key.draw_offset - tile_offset;
+
+        assert(BRW_IS_G4X(brw) || tile_offset == 0);
+        if (BRW_IS_G4X(brw)) {
+           if (key.tiling == I915_TILING_X) {
+              /* Note that the low bits of these fields are missing, so
+               * there's the possibility of getting in trouble.
+               */
+              surf.ss5.x_offset = (tile_offset % 512) / key.cpp / 4;
+              surf.ss5.y_offset = tile_offset / 512 / 2;
+           } else {
+              surf.ss5.x_offset = (tile_offset % 128) / key.cpp / 4;
+              surf.ss5.y_offset = tile_offset / 128 / 2;
+           }
+        }
+      }
       if (region_bo != NULL)
         surf.ss1.base_addr += region_bo->offset; /* reloc */
 
@@ -609,7 +634,7 @@ brw_update_renderbuffer_surface(struct brw_context *brw,
         drm_intel_bo_emit_reloc(brw->wm.surf_bo[unit],
                                 offsetof(struct brw_surface_state, ss1),
                                 region_bo,
-                                key.draw_offset,
+                                surf.ss1.base_addr,
                                 I915_GEM_DOMAIN_RENDER,
                                 I915_GEM_DOMAIN_RENDER);
       }