[Bug 49186] New: DXBC compiler generates incorrect spir-v code
WineHQ Bugzilla
wine-bugs at winehq.org
Sun May 17 09:48:56 CDT 2020
https://bugs.winehq.org/show_bug.cgi?id=49186
Bug ID: 49186
Summary: DXBC compiler generates incorrect spir-v code
Product: vkd3d
Version: 1.1
Hardware: x86
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: vkd3d
Assignee: wine-bugs at winehq.org
Reporter: alex.fishman at gmail.com
Distribution: ---
Created attachment 67204
--> https://bugs.winehq.org/attachment.cgi?id=67204
dxbc tessellaton control shader
I'm having issues with tessellation shaders.
Seems that the generated spir-v code is incorrect. After converting the spir-v
to GLSL (spirv-dis) and validating it (glslangValidator) there are errors in
the the following section:
#version 450
layout(vertices = 5) out;
out float gl_ClipDistance[5];
layout(location = 0) out vec2 o0[5];
layout(location = 1) out vec4 o1[5];
vec4 opc[4];
vec4 v1[5];
void control0()
{
v1[1u] = vec4(gl_ClipDistance[0u]);
v1[2u] = vec4(gl_ClipDistance[1u]);
v1[3u] = vec4(gl_ClipDistance[2u]);
v1[4u] = vec4(gl_ClipDistance[3u]);
v1[5u] = vec4(gl_ClipDistance[4u]);
vec4 r0;
r0.x = intBitsToFloat(gl_InvocationID);
o0[gl_InvocationID] = gl_in[floatBitsToInt(r0.x)].gl_Position.xy;
o1[gl_InvocationID] = v1[floatBitsToInt(r0.x)];
}
...
glslangValidator outputs the following error:
ERROR: 0:4: 'gl_ClipDistance' : identifiers starting with "gl_" are reserved
ERROR: 1 compilation errors. No code generated.
Sample DXBC binary is attached
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