From: Marek Olšák <marek.ol...@amd.com>
v2: restore the state
Cc: 13.0 17.0 <mesa-sta...@lists.freedesktop.org>
---
src/mesa/state_tracker/st_cb_readpixels.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/src/mesa/state_tracker/st_cb_readpixels.c
b/src/mesa/state_tracker/st_cb_readpixels.c
index 5ce2421..78ea0c7 100644
--- a/src/mesa/state_tracker/st_cb_readpixels.c
+++ b/src/mesa/state_tracker/st_cb_readpixels.c
@@ -124,20 +124,21 @@ try_pbo_readpixels(struct st_context *st, struct
st_renderbuffer *strb,
addr.yoffset = y;
addr.width = width;
addr.height = height;
addr.depth = 1;
if (!st_pbo_addresses_pixelstore(st, GL_TEXTURE_2D, false, pack, pixels,
&addr))
return false;
cso_save_state(cso, (CSO_BIT_FRAGMENT_SAMPLER_VIEWS |
CSO_BIT_FRAGMENT_SAMPLERS |
CSO_BIT_FRAGMENT_IMAGE0 |
+ CSO_BIT_BLEND |
CSO_BIT_VERTEX_ELEMENTS |
CSO_BIT_AUX_VERTEX_BUFFER_SLOT |
CSO_BIT_FRAMEBUFFER |
CSO_BIT_VIEWPORT |
CSO_BIT_RASTERIZER |
CSO_BIT_DEPTH_STENCIL_ALPHA |
CSO_BIT_STREAM_OUTPUTS |
CSO_BIT_PAUSE_QUERIES |
CSO_BIT_SAMPLE_MASK |
CSO_BIT_MIN_SAMPLES |
@@ -206,20 +207,25 @@ try_pbo_readpixels(struct st_context *st, struct
st_renderbuffer *strb,
}
/* Set up no-attachment framebuffer */
memset(&fb, 0, sizeof(fb));
fb.width = surface->width;
fb.height = surface->height;
fb.samples = 1;
fb.layers = 1;
cso_set_framebuffer(cso, &fb);
+ /* Any blend state would do. Set this just to prevent drivers having
+ * blend == NULL.
+ */
+ cso_set_blend(cso, &st->pbo.upload_blend);
+
cso_set_viewport_dims(cso, fb.width, fb.height, invert_y);
if (invert_y)
st_pbo_addresses_invert_y(&addr, fb.height);
{
struct pipe_depth_stencil_alpha_state dsa;
memset(&dsa, 0, sizeof(dsa));
cso_set_depth_stencil_alpha(cso, &dsa);
}
--
2.7.4
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
