diff options
Diffstat (limited to 'src/mesa/drivers/dri/radeon/radeon_common_context.c')
| -rw-r--r-- | src/mesa/drivers/dri/radeon/radeon_common_context.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_common_context.c b/src/mesa/drivers/dri/radeon/radeon_common_context.c index 5a7d52c4d2f..f76c49eada3 100644 --- a/src/mesa/drivers/dri/radeon/radeon_common_context.c +++ b/src/mesa/drivers/dri/radeon/radeon_common_context.c @@ -493,6 +493,50 @@ radeon_bits_per_pixel(const struct radeon_renderbuffer *rb) return _mesa_get_format_bytes(rb->base.Format) * 8; } +/* + * Check if drawable has been invalidated by dri2InvalidateDrawable(). + * Update renderbuffers if so. This prevents a client from accessing + * a backbuffer that has a swap pending but not yet completed. + * + * See intel_prepare_render for equivalent code in intel driver. + * + */ +void radeon_prepare_render(radeonContextPtr radeon) +{ + __DRIcontext *driContext = radeon->dri.context; + __DRIdrawable *drawable; + __DRIscreen *screen; + + screen = driContext->driScreenPriv; + if (!screen->dri2.loader) + return; + + drawable = driContext->driDrawablePriv; + if (drawable->dri2.stamp != driContext->dri2.draw_stamp) { + if (drawable->lastStamp != drawable->dri2.stamp) + radeon_update_renderbuffers(driContext, drawable, GL_FALSE); + + /* Intel driver does the equivalent of this, no clue if it is needed: + * radeon_draw_buffer(radeon->glCtx, &(drawable->driverPrivate)->base); + */ + driContext->dri2.draw_stamp = drawable->dri2.stamp; + } + + drawable = driContext->driReadablePriv; + if (drawable->dri2.stamp != driContext->dri2.read_stamp) { + if (drawable->lastStamp != drawable->dri2.stamp) + radeon_update_renderbuffers(driContext, drawable, GL_FALSE); + driContext->dri2.read_stamp = drawable->dri2.stamp; + } + + /* If we're currently rendering to the front buffer, the rendering + * that will happen next will probably dirty the front buffer. So + * mark it as dirty here. + */ + if (radeon->is_front_buffer_rendering) + radeon->front_buffer_dirty = GL_TRUE; +} + void radeon_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable, GLboolean front_only) @@ -514,6 +558,11 @@ radeon_update_renderbuffers(__DRIcontext *context, __DRIdrawable *drawable, screen = context->driScreenPriv; radeon = (radeonContextPtr) context->driverPrivate; + /* Set this up front, so that in case our buffers get invalidated + * while we're getting new buffers, we don't clobber the stamp and + * thus ignore the invalidate. */ + drawable->lastStamp = drawable->dri2.stamp; + if (screen->dri2.loader && (screen->dri2.loader->base.version > 2) && (screen->dri2.loader->getBuffersWithFormat != NULL)) { |