[Mesa-dev] [RFC PATCH 03/12] gen7 depth surface: calculate depth (array size) for depth surface

[Jordan Justen]

This will be used in 3DSTATE_DEPTH_BUFFER in a later patch.

Note: Cube maps are treated as 2D arrays with 6 times as
many array elements as the cube map array would have.

Signed-off-by: Jordan Justen <jordan.l.justen at intel.com>
---
 src/mesa/drivers/dri/i965/gen7_blorp.cpp    |    2 ++
 src/mesa/drivers/dri/i965/gen7_misc_state.c |    3 +++
 2 files changed, 5 insertions(+)

diff --git a/src/mesa/drivers/dri/i965/gen7_blorp.cpp b/src/mesa/drivers/dri/i965/gen7_blorp.cpp
index 32dadf7..1ec05ad 100644
--- a/src/mesa/drivers/dri/i965/gen7_blorp.cpp
+++ b/src/mesa/drivers/dri/i965/gen7_blorp.cpp
@@ -658,6 +658,7 @@ gen7_blorp_emit_depth_stencil_config(struct brw_context *brw,
    uint32_t draw_y = params->depth.y_offset;
    uint32_t tile_mask_x, tile_mask_y;
    uint32_t surftype;
+   int depth = MAX2(params->depth.mt->logical_depth0, 1);
    GLenum gl_target = params->depth.mt->target;
 
    brw_get_depthstencil_tile_masks(params->depth.mt,
@@ -669,6 +670,7 @@ gen7_blorp_emit_depth_stencil_config(struct brw_context *brw,
    case GL_TEXTURE_CUBE_MAP_ARRAY:
    case GL_TEXTURE_CUBE_MAP:
       surftype = BRW_SURFACE_2D;
+      depth *= 6;
       break;
    default:
       surftype = translate_tex_target(gl_target);
diff --git a/src/mesa/drivers/dri/i965/gen7_misc_state.c b/src/mesa/drivers/dri/i965/gen7_misc_state.c
index b3734e0..798da41 100644
--- a/src/mesa/drivers/dri/i965/gen7_misc_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_misc_state.c
@@ -43,6 +43,7 @@ gen7_emit_depth_stencil_hiz(struct brw_context *brw,
    struct gl_context *ctx = &brw->ctx;
    struct gl_framebuffer *fb = ctx->DrawBuffer;
    uint32_t surftype;
+   int depth = 1;
    GLenum gl_target = GL_TEXTURE_2D;
    const struct intel_renderbuffer *irb = NULL;
    const struct gl_renderbuffer *rb = NULL;
@@ -55,6 +56,7 @@ gen7_emit_depth_stencil_hiz(struct brw_context *brw,
    rb = (struct gl_renderbuffer*) irb;
 
    if (rb) {
+      depth = MAX2(rb->Depth, 1);
       if (rb->TexImage)
          gl_target = rb->TexImage->TexObject->Target;
    }
@@ -63,6 +65,7 @@ gen7_emit_depth_stencil_hiz(struct brw_context *brw,
    case GL_TEXTURE_CUBE_MAP_ARRAY:
    case GL_TEXTURE_CUBE_MAP:
       surftype = BRW_SURFACE_2D;
+      depth *= 6;
       break;
    default:
       surftype = translate_tex_target(gl_target);
-- 
1.7.10.4