From: Marek Olšák <marek.ol...@amd.com>
radeonsi won't flush caches if set_framebuffer_state doesn't change
anything.
---
src/mesa/state_tracker/st_cb_drawpixels.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/mesa/state_tracker/st_cb_drawpixels.c
b/src/mesa/state_tracker/st_cb_drawpixels.c
index 33d10f6..0ef05ef 100644
--- a/src/mesa/state_tracker/st_cb_drawpixels.c
+++ b/src/mesa/state_tracker/st_cb_drawpixels.c
@@ -1400,20 +1400,27 @@ blit_copy_pixels(struct gl_context *ctx, GLint srcx,
GLint srcy,
st_window_rectangles_to_blit(ctx, &blit);
if (screen->is_format_supported(screen, blit.src.format,
blit.src.resource->target,
blit.src.resource->nr_samples,
PIPE_BIND_SAMPLER_VIEW) &&
screen->is_format_supported(screen, blit.dst.format,
blit.dst.resource->target,
blit.dst.resource->nr_samples,
PIPE_BIND_RENDER_TARGET)) {
+ /* If src == dst, make sure src is coherent with recent dst
+ * updates.
+ */
+ if (blit.src.resource == blit.dst.resource &&
+ screen->get_param(screen, PIPE_CAP_TEXTURE_BARRIER))
+ pipe->texture_barrier(pipe, PIPE_TEXTURE_BARRIER_SAMPLER);
+
pipe->blit(pipe, &blit);
return GL_TRUE;
}
}
}
return GL_FALSE;
}
--
2.7.4
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