diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_blorp_blit.cpp | 143 |
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, ¶ms); + + /* 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, ¶ms); - - /* 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; } |