Signed-off-by: Topi Pohjolainen <topi.pohjolai...@intel.com>
---
src/mesa/drivers/dri/i965/brw_context.h | 4 +++
src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c | 34 +++++++++++++++++++++++
2 files changed, 38 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/brw_context.h
b/src/mesa/drivers/dri/i965/brw_context.h
index d6b7f16..a9adbf2 100644
--- a/src/mesa/drivers/dri/i965/brw_context.h
+++ b/src/mesa/drivers/dri/i965/brw_context.h
@@ -1488,6 +1488,10 @@ void brw_meta_fbo_stencil_blit(struct brw_context *brw,
GLfloat srcX1, GLfloat srcY1,
GLfloat dstX0, GLfloat dstY0,
GLfloat dstX1, GLfloat dstY1);
+
+void brw_meta_stencil_updownsample(struct brw_context *brw,
+ struct intel_mipmap_tree *src,
+ struct intel_mipmap_tree *dst);
/*======================================================================
* brw_misc_state.c
*/
diff --git a/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
b/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
index c38987e..b2cca35 100644
--- a/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
+++ b/src/mesa/drivers/dri/i965/brw_meta_stencil_blit.c
@@ -490,3 +490,37 @@ brw_meta_fbo_stencil_blit(struct brw_context *brw,
dst_mt, dst_irb->mt_level, dst_irb->mt_layer, &dims);
intel_batchbuffer_emit_mi_flush(brw);
}
+
+void
+brw_meta_stencil_updownsample(struct brw_context *brw,
+ struct intel_mipmap_tree *src,
+ struct intel_mipmap_tree *dst)
+{
+ struct gl_context *ctx = &brw->ctx;
+ struct blit_dims dims = {
+ .src_x0 = 0, .src_y0 = 0,
+ .src_x1 = src->logical_width0, .src_y1 = src->logical_height0,
+ .dst_x0 = 0, .dst_y0 = 0,
+ .dst_x1 = dst->logical_width0, .dst_y1 = dst->logical_height0,
+ .mirror_x = 0, .mirror_y = 0 };
+ GLuint fbo, rbo;
+
+ if (dst->stencil_mt)
+ dst = dst->stencil_mt;
+
+ intel_batchbuffer_emit_mi_flush(brw);
+ _mesa_meta_begin(ctx, MESA_META_ALL);
+
+ _mesa_GenFramebuffers(1, &fbo);
+ rbo = brw_get_rb_for_slice(brw, src, 0, 0, false);
+
+ _mesa_BindFramebuffer(GL_READ_FRAMEBUFFER, fbo);
+ _mesa_FramebufferRenderbuffer(GL_READ_FRAMEBUFFER, GL_STENCIL_ATTACHMENT,
+ GL_RENDERBUFFER, rbo);
+
+ brw_meta_stencil_blit(brw, dst, 0, 0, &dims);
+ intel_batchbuffer_emit_mi_flush(brw);
+
+ _mesa_DeleteRenderbuffers(1, &rbo);
+ _mesa_DeleteFramebuffers(1, &fbo);
+}
--
1.8.3.1
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