diff options
| author | Eric Anholt <[email protected]> | 2014-02-04 23:57:29 -0800 |
|---|---|---|
| committer | Eric Anholt <[email protected]> | 2014-02-12 16:17:11 -0800 |
| commit | 255bd9c0b83e3cb3914ee5a1386c8d5acdbc046a (patch) | |
| tree | 85b3aea4d1b2b098b7cfc68ec45ac20cb9bbea1d /src/mesa/drivers | |
| parent | 067c7b67e8080bb2ad9ed857f1e62ddae8da6e6d (diff) | |
meta: Add acceleration for depth glBlitFramebuffer().
Surprisingly, the GLSL shaders already wrote the sampled r value to
FragDepth.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=51600
Reviewed-by: Kenneth Graunke <[email protected]>
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/common/meta_blit.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/src/mesa/drivers/common/meta_blit.c b/src/mesa/drivers/common/meta_blit.c index bfbf6ac0d33..456fa16491e 100644 --- a/src/mesa/drivers/common/meta_blit.c +++ b/src/mesa/drivers/common/meta_blit.c @@ -94,7 +94,7 @@ setup_glsl_blit_framebuffer(struct gl_context *ctx, } /** - * Try to do a color-only glBlitFramebuffer using texturing. + * Try to do a color or depth glBlitFramebuffer using texturing. * * We can do this when the src renderbuffer is actually a texture, or when the * driver exposes BindRenderbufferTexImage(). @@ -104,11 +104,12 @@ blitframebuffer_texture(struct gl_context *ctx, GLint srcX0, GLint srcY0, GLint srcX1, GLint srcY1, GLint dstX0, GLint dstY0, GLint dstX1, GLint dstY1, GLenum filter, GLint flipX, GLint flipY, - GLboolean glsl_version) + GLboolean glsl_version, GLboolean do_depth) { const struct gl_framebuffer *readFb = ctx->ReadBuffer; + int att_index = do_depth ? BUFFER_DEPTH : readFb->_ColorReadBufferIndex; const struct gl_renderbuffer_attachment *readAtt = - &readFb->Attachment[readFb->_ColorReadBufferIndex]; + &readFb->Attachment[att_index]; struct blit_state *blit = &ctx->Meta->Blit; const GLint dstX = MIN2(dstX0, dstX1); const GLint dstY = MIN2(dstY0, dstY1); @@ -263,8 +264,11 @@ blitframebuffer_texture(struct gl_context *ctx, /* setup viewport */ _mesa_set_viewport(ctx, 0, dstX, dstY, dstW, dstH); - _mesa_ColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE); - _mesa_DepthMask(GL_FALSE); + _mesa_ColorMask(!do_depth, !do_depth, !do_depth, !do_depth); + _mesa_set_enable(ctx, GL_DEPTH_TEST, do_depth); + _mesa_DepthMask(do_depth); + _mesa_DepthFunc(GL_ALWAYS); + _mesa_DrawArrays(GL_TRIANGLE_FAN, 0, 4); /* Restore texture object state, the texture binding will @@ -338,7 +342,7 @@ _mesa_meta_BlitFramebuffer(struct gl_context *ctx, if (blitframebuffer_texture(ctx, srcX0, srcY0, srcX1, srcY1, dstX0, dstY0, dstX1, dstY1, filter, dstFlipX, dstFlipY, - use_glsl_version)) { + use_glsl_version, false)) { mask &= ~GL_COLOR_BUFFER_BIT; if (mask == 0x0) { _mesa_meta_end(ctx); @@ -347,6 +351,19 @@ _mesa_meta_BlitFramebuffer(struct gl_context *ctx, } } + if (mask & GL_DEPTH_BUFFER_BIT && use_glsl_version) { + if (blitframebuffer_texture(ctx, srcX0, srcY0, srcX1, srcY1, + dstX0, dstY0, dstX1, dstY1, + filter, dstFlipX, dstFlipY, + use_glsl_version, true)) { + mask &= ~GL_DEPTH_BUFFER_BIT; + if (mask == 0x0) { + _mesa_meta_end(ctx); + return; + } + } + } + /* Choose between glsl version and fixed function version of * BlitFramebuffer function. */ |