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-rw-r--r--src/mesa/drivers/dri/i965/brw_blorp_blit.cpp143
1 files changed, 88 insertions, 55 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
index eb78fe1ece7..0c42e8517bd 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
@@ -110,6 +110,61 @@ clip_or_scissor(bool mirror, GLint &src_x0, GLint &src_x1, GLint &dst_x0,
}
+static struct intel_mipmap_tree *
+find_miptree(GLbitfield buffer_bit, struct gl_renderbuffer *rb)
+{
+ struct intel_renderbuffer *irb = intel_renderbuffer(rb);
+ struct intel_mipmap_tree *mt = irb->mt;
+ if (buffer_bit == GL_STENCIL_BUFFER_BIT && mt->stencil_mt)
+ mt = mt->stencil_mt;
+ return mt;
+}
+
+
+static void
+do_blorp_blit(struct intel_context *intel, GLbitfield buffer_bit,
+ struct gl_renderbuffer *src_rb, struct gl_renderbuffer *dst_rb,
+ GLint srcX0, GLint srcY0,
+ GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1,
+ bool mirror_x, bool mirror_y)
+{
+ struct gl_context *ctx = &intel->ctx;
+
+ /* Find source/dst miptrees */
+ struct intel_mipmap_tree *src_mt = find_miptree(buffer_bit, src_rb);
+ struct intel_mipmap_tree *dst_mt = find_miptree(buffer_bit, dst_rb);
+
+ /* Get ready to blit. This includes depth resolving the src and dst
+ * buffers if necessary.
+ */
+ intel_renderbuffer_resolve_depth(intel, intel_renderbuffer(src_rb));
+ intel_renderbuffer_resolve_depth(intel, intel_renderbuffer(dst_rb));
+
+ /* Do the blit */
+ brw_blorp_blit_params params(brw_context(ctx), src_mt, dst_mt,
+ srcX0, srcY0, dstX0, dstY0, dstX1, dstY1,
+ mirror_x, mirror_y);
+ brw_blorp_exec(intel, &params);
+
+ /* Mark the dst buffer as needing a HiZ resolve if necessary. */
+ intel_renderbuffer_set_needs_hiz_resolve(intel_renderbuffer(dst_rb));
+}
+
+
+static bool
+formats_match(GLbitfield buffer_bit, struct gl_renderbuffer *src_rb,
+ struct gl_renderbuffer *dst_rb)
+{
+ /* Note: don't just check gl_renderbuffer::Format, because in some cases
+ * multiple gl_formats resolve to the same native type in the miptree (for
+ * example MESA_FORMAT_X8_Z24 and MESA_FORMAT_S8_Z24), and we can blit
+ * between those formats.
+ */
+ return find_miptree(buffer_bit, src_rb)->format ==
+ find_miptree(buffer_bit, dst_rb)->format;
+}
+
+
static bool
try_blorp_blit(struct intel_context *intel,
GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1,
@@ -123,49 +178,8 @@ try_blorp_blit(struct intel_context *intel,
*/
intel_prepare_render(intel);
- /* Find buffers */
const struct gl_framebuffer *read_fb = ctx->ReadBuffer;
const struct gl_framebuffer *draw_fb = ctx->DrawBuffer;
- struct gl_renderbuffer *src_rb;
- struct gl_renderbuffer *dst_rb;
- switch (buffer_bit) {
- case GL_COLOR_BUFFER_BIT:
- src_rb = read_fb->_ColorReadBuffer;
- dst_rb =
- draw_fb->Attachment[
- draw_fb->_ColorDrawBufferIndexes[0]].Renderbuffer;
- break;
- case GL_DEPTH_BUFFER_BIT:
- src_rb = read_fb->Attachment[BUFFER_DEPTH].Renderbuffer;
- dst_rb = draw_fb->Attachment[BUFFER_DEPTH].Renderbuffer;
- break;
- case GL_STENCIL_BUFFER_BIT:
- src_rb = read_fb->Attachment[BUFFER_STENCIL].Renderbuffer;
- dst_rb = draw_fb->Attachment[BUFFER_STENCIL].Renderbuffer;
- break;
- default:
- assert(false);
- }
-
- /* Find source miptree */
- struct intel_renderbuffer *src_irb = intel_renderbuffer(src_rb);
- struct intel_mipmap_tree *src_mt = src_irb->mt;
- if (buffer_bit == GL_STENCIL_BUFFER_BIT && src_mt->stencil_mt)
- src_mt = src_mt->stencil_mt;
-
- /* Find destination miptree */
- struct intel_renderbuffer *dst_irb = intel_renderbuffer(dst_rb);
- struct intel_mipmap_tree *dst_mt = dst_irb->mt;
- if (buffer_bit == GL_STENCIL_BUFFER_BIT && dst_mt->stencil_mt)
- dst_mt = dst_mt->stencil_mt;
-
- /* Blorp blits can't translate from one format to another. For that we'll
- * have to fall back to the meta-op blit. Note: the meta-op blit doesn't
- * support multisampled blits, but fortunately this is ok because
- * multisampled blits require identical source and destination formats.
- */
- if (src_mt->format != dst_mt->format)
- return false;
/* Detect if the blit needs to be mirrored */
bool mirror_x = false, mirror_y = false;
@@ -213,20 +227,39 @@ try_blorp_blit(struct intel_context *intel,
mirror_y = !mirror_y;
}
- /* Get ready to blit. This includes depth resolving the src and dst
- * buffers if necessary.
- */
- intel_renderbuffer_resolve_depth(intel, src_irb);
- intel_renderbuffer_resolve_depth(intel, dst_irb);
-
- /* Do the blit */
- brw_blorp_blit_params params(brw_context(ctx), src_mt, dst_mt,
- srcX0, srcY0, dstX0, dstY0, dstX1, dstY1,
- mirror_x, mirror_y);
- brw_blorp_exec(intel, &params);
-
- /* Mark the dst buffer as needing a HiZ resolve if necessary. */
- intel_renderbuffer_set_needs_hiz_resolve(dst_irb);
+ /* Find buffers */
+ struct gl_renderbuffer *src_rb;
+ struct gl_renderbuffer *dst_rb;
+ switch (buffer_bit) {
+ case GL_COLOR_BUFFER_BIT:
+ src_rb = read_fb->_ColorReadBuffer;
+ dst_rb =
+ draw_fb->Attachment[
+ draw_fb->_ColorDrawBufferIndexes[0]].Renderbuffer;
+ if (!formats_match(buffer_bit, src_rb, dst_rb))
+ return false;
+ do_blorp_blit(intel, buffer_bit, src_rb, dst_rb, srcX0, srcY0,
+ dstX0, dstY0, dstX1, dstY1, mirror_x, mirror_y);
+ break;
+ case GL_DEPTH_BUFFER_BIT:
+ src_rb = read_fb->Attachment[BUFFER_DEPTH].Renderbuffer;
+ dst_rb = draw_fb->Attachment[BUFFER_DEPTH].Renderbuffer;
+ if (!formats_match(buffer_bit, src_rb, dst_rb))
+ return false;
+ do_blorp_blit(intel, buffer_bit, src_rb, dst_rb, srcX0, srcY0,
+ dstX0, dstY0, dstX1, dstY1, mirror_x, mirror_y);
+ break;
+ case GL_STENCIL_BUFFER_BIT:
+ src_rb = read_fb->Attachment[BUFFER_STENCIL].Renderbuffer;
+ dst_rb = draw_fb->Attachment[BUFFER_STENCIL].Renderbuffer;
+ if (!formats_match(buffer_bit, src_rb, dst_rb))
+ return false;
+ do_blorp_blit(intel, buffer_bit, src_rb, dst_rb, srcX0, srcY0,
+ dstX0, dstY0, dstX1, dstY1, mirror_x, mirror_y);
+ break;
+ default:
+ assert(false);
+ }
return true;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-22 22:49:06 +0000