this is required for Drivers which don't allow reading from outputs. Reviewed-by: Timothy Arceri <tarc...@itsqueeze.com> Signed-off-by: Karol Herbst <kher...@redhat.com> --- src/mesa/state_tracker/st_glsl_to_nir.cpp | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/src/mesa/state_tracker/st_glsl_to_nir.cpp b/src/mesa/state_tracker/st_glsl_to_nir.cpp index bcf6a7ceb6a..6502aec370f 100644 --- a/src/mesa/state_tracker/st_glsl_to_nir.cpp +++ b/src/mesa/state_tracker/st_glsl_to_nir.cpp @@ -44,6 +44,7 @@ #include "compiler/glsl_types.h" #include "compiler/glsl/glsl_to_nir.h" #include "compiler/glsl/ir.h" +#include "compiler/glsl/ir_optimization.h" #include "compiler/glsl/string_to_uint_map.h" @@ -553,6 +554,7 @@ st_nir_get_mesa_program(struct gl_context *ctx, struct gl_linked_shader *shader) { struct st_context *st = st_context(ctx); + struct pipe_screen *pscreen = ctx->st->pipe->screen; struct gl_program *prog; validate_ir_tree(shader->ir); @@ -565,6 +567,10 @@ st_nir_get_mesa_program(struct gl_context *ctx, _mesa_generate_parameters_list_for_uniforms(ctx, shader_program, shader, prog->Parameters); + /* Remove reads from output registers. */ + if (!pscreen->get_param(pscreen, PIPE_CAP_TGSI_CAN_READ_OUTPUTS)) + lower_output_reads(shader->Stage, shader->ir); + if (ctx->_Shader->Flags & GLSL_DUMP) { _mesa_log("\n"); _mesa_log("GLSL IR for linked %s program %d:\n", -- 2.14.3 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev