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radv/xfb: fix counter buffer bounds checks.

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If we gave this function 0 counter buffers, we'd still try and
access pCounterBuffers[0] as this check was incorrect.

Fixes crash with ext_transform_feedback-pipeline-basic-primgen
on zink on radv.

Fixes: 677b496b6 (radv: fix begin/end transform feedback with 0 counter buffers.)
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
This commit is contained in:
Dave Airlie 2018-12-13 03:29:04 +00:00
parent 9ebc00f32e
commit b3f2b03ece
1 changed files with 2 additions and 2 deletions
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4
src/amd/vulkan/radv_cmd_buffer.c
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@ -4853,7 +4853,7 @@ void radv_CmdBeginTransformFeedbackEXT(
assert(firstCounterBuffer + counterBufferCount <= MAX_SO_BUFFERS);
for_each_bit(i, so->enabled_mask) {
int32_t counter_buffer_idx = i - firstCounterBuffer;
if (counter_buffer_idx >= 0 && counter_buffer_idx > counterBufferCount)
if (counter_buffer_idx >= 0 && counter_buffer_idx >= counterBufferCount)
counter_buffer_idx = -1;
/* SI binds streamout buffers as shader resources.
@ -4915,7 +4915,7 @@ void radv_CmdEndTransformFeedbackEXT(
assert(firstCounterBuffer + counterBufferCount <= MAX_SO_BUFFERS);
for_each_bit(i, so->enabled_mask) {
int32_t counter_buffer_idx = i - firstCounterBuffer;
if (counter_buffer_idx >= 0 && counter_buffer_idx > counterBufferCount)
if (counter_buffer_idx >= 0 && counter_buffer_idx >= counterBufferCount)
counter_buffer_idx = -1;
if (counter_buffer_idx >= 0 && pCounterBuffers && pCounterBuffers[counter_buffer_idx]) {