diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_fbo.c | 50 |
1 files changed, 49 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_fbo.c b/src/mesa/drivers/dri/i965/intel_fbo.c index 90fd064e836..57cf583cbe8 100644 --- a/src/mesa/drivers/dri/i965/intel_fbo.c +++ b/src/mesa/drivers/dri/i965/intel_fbo.c @@ -916,6 +916,51 @@ intel_blit_framebuffer(struct gl_context *ctx, } /** + * Gen4-5 implementation of glBlitFrameBuffer(). + * + * Tries BLT, Meta, then swrast. + * + * Gen4-5 have a single ring for both 3D and BLT operations, so there's no + * inter-ring synchronization issues like on Gen6+. It is apparently faster + * than using the 3D pipeline. Original Gen4 also has to rebase and copy + * miptree slices in order to render to unaligned locations. + */ +static void +gen4_blit_framebuffer(struct gl_context *ctx, + struct gl_framebuffer *readFb, + struct gl_framebuffer *drawFb, + GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, + GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, + GLbitfield mask, GLenum filter) +{ + /* Page 679 of OpenGL 4.4 spec says: + * "Added BlitFramebuffer to commands affected by conditional rendering in + * section 10.10 (Bug 9562)." + */ + if (!_mesa_check_conditional_render(ctx)) + return; + + mask = intel_blit_framebuffer_with_blitter(ctx, readFb, drawFb, + srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, + mask, filter); + if (mask == 0x0) + return; + + mask = _mesa_meta_BlitFramebuffer(ctx, readFb, drawFb, + srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, + mask, filter); + if (mask == 0x0) + return; + + _swrast_BlitFramebuffer(ctx, readFb, drawFb, + srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, + mask, filter); +} + +/** * Does the renderbuffer have hiz enabled? */ bool @@ -1049,7 +1094,10 @@ intel_fbo_init(struct brw_context *brw) dd->UnmapRenderbuffer = intel_unmap_renderbuffer; dd->RenderTexture = intel_render_texture; dd->ValidateFramebuffer = intel_validate_framebuffer; - dd->BlitFramebuffer = intel_blit_framebuffer; + if (brw->gen >= 6) + dd->BlitFramebuffer = intel_blit_framebuffer; + else + dd->BlitFramebuffer = gen4_blit_framebuffer; dd->EGLImageTargetRenderbufferStorage = intel_image_target_renderbuffer_storage; |