[Mesa-dev] [PATCH 35/37] glsl: add transform feedback buffers to resource list

[Timothy Arceri]

---
 src/compiler/glsl/linker.cpp               | 14 +++++++++++++-
 src/compiler/glsl/program.h                |  3 ++-
 src/mesa/drivers/dri/i965/brw_link.cpp     |  2 +-
 src/mesa/program/ir_to_mesa.cpp            |  2 +-
 src/mesa/state_tracker/st_glsl_to_tgsi.cpp |  2 +-
 5 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/src/compiler/glsl/linker.cpp b/src/compiler/glsl/linker.cpp
index 3c961b1..4884c75 100644
--- a/src/compiler/glsl/linker.cpp
+++ b/src/compiler/glsl/linker.cpp
@@ -3906,7 +3906,8 @@ write_top_level_array_size_and_stride:
  * resource data.
  */
 void
-build_program_resource_list(struct gl_shader_program *shProg)
+build_program_resource_list(struct gl_context *ctx,
+                            struct gl_shader_program *shProg)
 {
    /* Rebuild resource list. */
    if (shProg->ProgramResourceList) {
@@ -3964,6 +3965,17 @@ build_program_resource_list(struct gl_shader_program *shProg)
       }
    }
 
+   /* Add transform feedback buffers. */
+   for (unsigned i = 0; i < ctx->Const.MaxTransformFeedbackBuffers; i++) {
+      if ((shProg->LinkedTransformFeedback.ActiveBuffers >> i) & 1) {
+         shProg->LinkedTransformFeedback.Buffers[i].Binding = i;
+         if (!add_program_resource(shProg, GL_TRANSFORM_FEEDBACK_BUFFER,
+                                   &shProg->LinkedTransformFeedback.Buffers[i],
+                                   0))
+         return;
+      }
+   }
+
    /* Add uniforms from uniform storage. */
    for (unsigned i = 0; i < shProg->NumUniformStorage; i++) {
       /* Do not add uniforms internally used by Mesa. */
diff --git a/src/compiler/glsl/program.h b/src/compiler/glsl/program.h
index 31bb9aa..8f5a31b 100644
--- a/src/compiler/glsl/program.h
+++ b/src/compiler/glsl/program.h
@@ -43,7 +43,8 @@ extern void
 link_shaders(struct gl_context *ctx, struct gl_shader_program *prog);
 
 extern void
-build_program_resource_list(struct gl_shader_program *shProg);
+build_program_resource_list(struct gl_context *ctx,
+                            struct gl_shader_program *shProg);
 
 extern void
 linker_error(struct gl_shader_program *prog, const char *fmt, ...)
diff --git a/src/mesa/drivers/dri/i965/brw_link.cpp b/src/mesa/drivers/dri/i965/brw_link.cpp
index b512f8b..c7d6fb8 100644
--- a/src/mesa/drivers/dri/i965/brw_link.cpp
+++ b/src/mesa/drivers/dri/i965/brw_link.cpp
@@ -260,6 +260,6 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg)
    if (brw->precompile && !brw_shader_precompile(ctx, shProg))
       return false;
 
-   build_program_resource_list(shProg);
+   build_program_resource_list(ctx, shProg);
    return true;
 }
diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index 10d931c..91b31ab 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -2976,7 +2976,7 @@ _mesa_ir_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
       _mesa_reference_program(ctx, &linked_prog, NULL);
    }
 
-   build_program_resource_list(prog);
+   build_program_resource_list(ctx, prog);
    return prog->LinkStatus;
 }
 
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 34bf903..9137f9a 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -6759,7 +6759,7 @@ st_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
       validate_ir_tree(ir);
    }
 
-   build_program_resource_list(prog);
+   build_program_resource_list(ctx, prog);
 
    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
       struct gl_program *linked_prog;
-- 
2.5.0