diff options
Diffstat (limited to 'src/mesa/state_tracker')
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index dc20fe49c55..0d39fe8d8cd 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -2458,9 +2458,9 @@ glsl_to_tgsi_visitor::visit(ir_dereference_variable *ir) static void shrink_array_declarations(struct array_decl *arrays, unsigned count, - GLbitfield64 usage_mask, + GLbitfield64* usage_mask, GLbitfield64 double_usage_mask, - GLbitfield patch_usage_mask) + GLbitfield* patch_usage_mask) { unsigned i; int j; @@ -2474,12 +2474,12 @@ shrink_array_declarations(struct array_decl *arrays, unsigned count, /* Shrink the beginning. */ for (j = 0; j < (int)decl->array_size; j++) { if (decl->mesa_index >= VARYING_SLOT_PATCH0) { - if (patch_usage_mask & + if (*patch_usage_mask & BITFIELD64_BIT(decl->mesa_index - VARYING_SLOT_PATCH0 + j)) break; } else { - if (usage_mask & BITFIELD64_BIT(decl->mesa_index+j)) + if (*usage_mask & BITFIELD64_BIT(decl->mesa_index+j)) break; if (double_usage_mask & BITFIELD64_BIT(decl->mesa_index+j-1)) break; @@ -2493,12 +2493,12 @@ shrink_array_declarations(struct array_decl *arrays, unsigned count, /* Shrink the end. */ for (j = decl->array_size-1; j >= 0; j--) { if (decl->mesa_index >= VARYING_SLOT_PATCH0) { - if (patch_usage_mask & + if (*patch_usage_mask & BITFIELD64_BIT(decl->mesa_index - VARYING_SLOT_PATCH0 + j)) break; } else { - if (usage_mask & BITFIELD64_BIT(decl->mesa_index+j)) + if (*usage_mask & BITFIELD64_BIT(decl->mesa_index+j)) break; if (double_usage_mask & BITFIELD64_BIT(decl->mesa_index+j-1)) break; @@ -2506,6 +2506,22 @@ shrink_array_declarations(struct array_decl *arrays, unsigned count, decl->array_size--; } + + /* When not all entries of an array are accessed, we mark them as used + * here anyway, to ensure that the input/output mapping logic doesn't get + * confused. + * + * TODO This happens when an array isn't used via indirect access, which + * some game ports do (at least eON-based). There is an optimization + * opportunity here by replacing the array declaration with non-array + * declarations of those slots that are actually used. + */ + for (j = 1; j < (int)decl->array_size; ++j) { + if (decl->mesa_index >= VARYING_SLOT_PATCH0) + *patch_usage_mask |= BITFIELD64_BIT(decl->mesa_index - VARYING_SLOT_PATCH0 + j); + else + *usage_mask |= BITFIELD64_BIT(decl->mesa_index + j); + } } } @@ -6633,9 +6649,9 @@ get_mesa_program_tgsi(struct gl_context *ctx, do_set_program_inouts(shader->ir, prog, shader->Stage); shrink_array_declarations(v->input_arrays, v->num_input_arrays, - prog->InputsRead, prog->DoubleInputsRead, prog->PatchInputsRead); + &prog->InputsRead, prog->DoubleInputsRead, &prog->PatchInputsRead); shrink_array_declarations(v->output_arrays, v->num_output_arrays, - prog->OutputsWritten, 0ULL, prog->PatchOutputsWritten); + &prog->OutputsWritten, 0ULL, &prog->PatchOutputsWritten); count_resources(v, prog); /* The GLSL IR won't be needed anymore. */ |