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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - geometry shader with optional out variable segfaults"
href="https://bugs.freedesktop.org/show_bug.cgi?id=82585">82585</a>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>geometry shader with optional out variable segfaults
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
<tr>
<th>Reporter</th>
<td>pavol@klacansky.com
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
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<th>Version</th>
<td>git
</td>
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<th>Component</th>
<td>Drivers/Gallium/r600
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
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<pre>Running this shader in geometry stage, it segfaults:
#version 330
layout(points) in;
layout(points, max_vertices = 1) out;
in gl_PerVertex {
vec4 gl_Position;
float gl_PointSize;
float gl_ClipDistance[];
} gl_in[];
in vec4 v_colour[];
out vec4 g_colour;
void main() {
for(int i = 0; i < 1; i++) {
gl_Position = gl_in[i].gl_Position;
gl_PrimitiveID = gl_PrimitiveIDIn;
/* TODO report bug */
g_colour = v_colour[i];
EmitVertex();
}
EndPrimitive();
}
Following message is from Valgrind:
EE ../../../../../../src/gallium/drivers/r600/r600_shader.c:353
tgsi_is_supported - unsupported src 0 (dimension 1)
EE ../../../../../../src/gallium/drivers/r600/r600_shader.c:157
r600_pipe_shader_create - translation from TGSI failed !
EE ../../../../../../src/gallium/drivers/r600/r600_state_common.c:750
r600_shader_select - Failed to build shader variant (type=2) -22</pre>
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