diff options
Diffstat (limited to 'src/compiler/glsl/link_varyings.cpp')
| -rw-r--r-- | src/compiler/glsl/link_varyings.cpp | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/src/compiler/glsl/link_varyings.cpp b/src/compiler/glsl/link_varyings.cpp index 3969c0120b3..272e1239d27 100644 --- a/src/compiler/glsl/link_varyings.cpp +++ b/src/compiler/glsl/link_varyings.cpp @@ -2504,7 +2504,27 @@ assign_varying_locations(struct gl_context *ctx, if (num_tfeedback_decls > 0) { tfeedback_candidate_generator g(mem_ctx, tfeedback_candidates); - g.process(output_var); + /* From OpenGL 4.6 (Core Profile) spec, section 11.1.2.1 + * ("Vertex Shader Variables / Output Variables") + * + * "Each program object can specify a set of output variables from + * one shader to be recorded in transform feedback mode (see + * section 13.3). The variables that can be recorded are those + * emitted by the first active shader, in order, from the + * following list: + * + * * geometry shader + * * tessellation evaluation shader + * * tessellation control shader + * * vertex shader" + * + * But on OpenGL ES 3.2, section 11.1.2.1 ("Vertex Shader + * Variables / Output Variables") tessellation control shader is + * not included in the stages list. + */ + if (!prog->IsES || producer->Stage != MESA_SHADER_TESS_CTRL) { + g.process(output_var); + } } ir_variable *const input_var = |