diff options
Diffstat (limited to 'src/glsl/link_varyings.cpp')
| -rw-r--r-- | src/glsl/link_varyings.cpp | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/src/glsl/link_varyings.cpp b/src/glsl/link_varyings.cpp index f765d37fc73..9725a434f45 100644 --- a/src/glsl/link_varyings.cpp +++ b/src/glsl/link_varyings.cpp @@ -291,6 +291,7 @@ tfeedback_decl::init(struct gl_context *ctx, const void *mem_ctx, this->skip_components = 0; this->next_buffer_separator = false; this->matched_candidate = NULL; + this->stream_id = 0; if (ctx->Extensions.ARB_transform_feedback3) { /* Parse gl_NextBuffer. */ @@ -355,8 +356,8 @@ tfeedback_decl::is_same(const tfeedback_decl &x, const tfeedback_decl &y) /** - * Assign a location for this tfeedback_decl object based on the transform - * feedback candidate found by find_candidate. + * Assign a location and stream ID for this tfeedback_decl object based on the + * transform feedback candidate found by find_candidate. * * If an error occurs, the error is reported through linker_error() and false * is returned. @@ -437,6 +438,11 @@ tfeedback_decl::assign_location(struct gl_context *ctx, return false; } + /* Only transform feedback varyings can be assigned to non-zero streams, + * so assign the stream id here. + */ + this->stream_id = this->matched_candidate->toplevel_var->data.stream; + return true; } @@ -495,7 +501,7 @@ tfeedback_decl::store(struct gl_context *ctx, struct gl_shader_program *prog, info->Outputs[info->NumOutputs].ComponentOffset = location_frac; info->Outputs[info->NumOutputs].OutputRegister = location; info->Outputs[info->NumOutputs].NumComponents = output_size; - info->Outputs[info->NumOutputs].StreamId = 0; + info->Outputs[info->NumOutputs].StreamId = stream_id; info->Outputs[info->NumOutputs].OutputBuffer = buffer; info->Outputs[info->NumOutputs].DstOffset = info->BufferStride[buffer]; ++info->NumOutputs; |