diff options
| -rw-r--r-- | src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 44 |
1 files changed, 24 insertions, 20 deletions
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp index a38f1b60c8e..9401dcbbac2 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -313,6 +313,7 @@ public: int num_address_regs; int samplers_used; bool indirect_addr_consts; + int wpos_transform_const; int glsl_version; bool native_integers; @@ -3337,6 +3338,7 @@ glsl_to_tgsi_visitor::glsl_to_tgsi_visitor() num_address_regs = 0; samplers_used = 0; indirect_addr_consts = false; + wpos_transform_const = -1; glsl_version = 0; native_integers = false; mem_ctx = ralloc_context(NULL); @@ -4824,28 +4826,19 @@ compile_tgsi_instruction(struct st_translate *t, */ static void emit_wpos_adjustment( struct st_translate *t, - const struct gl_program *program, + int wpos_transform_const, boolean invert, GLfloat adjX, GLfloat adjY[2]) { struct ureg_program *ureg = t->ureg; + assert(wpos_transform_const >= 0); + /* Fragment program uses fragment position input. * Need to replace instances of INPUT[WPOS] with temp T - * where T = INPUT[WPOS] by y is inverted. - */ - static const gl_state_index wposTransformState[STATE_LENGTH] - = { STATE_INTERNAL, STATE_FB_WPOS_Y_TRANSFORM, - (gl_state_index)0, (gl_state_index)0, (gl_state_index)0 }; - - /* XXX: note we are modifying the incoming shader here! Need to - * do this before emitting the constant decls below, or this - * will be missed: + * where T = INPUT[WPOS] is inverted by Y. */ - unsigned wposTransConst = _mesa_add_state_reference(program->Parameters, - wposTransformState); - - struct ureg_src wpostrans = ureg_DECL_constant( ureg, wposTransConst ); + struct ureg_src wpostrans = ureg_DECL_constant(ureg, wpos_transform_const); struct ureg_dst wpos_temp = ureg_DECL_temporary( ureg ); struct ureg_src wpos_input = t->inputs[t->inputMapping[VARYING_SLOT_POS]]; @@ -4909,7 +4902,8 @@ static void emit_wpos(struct st_context *st, struct st_translate *t, const struct gl_program *program, - struct ureg_program *ureg) + struct ureg_program *ureg, + int wpos_transform_const) { const struct gl_fragment_program *fp = (const struct gl_fragment_program *) program; @@ -5006,7 +5000,7 @@ emit_wpos(struct st_context *st, /* we invert after adjustment so that we avoid the MOV to temporary, * and reuse the adjustment ADD instead */ - emit_wpos_adjustment(t, program, invert, adjX, adjY); + emit_wpos_adjustment(t, wpos_transform_const, invert, adjX, adjY); } /** @@ -5145,10 +5139,9 @@ st_translate_program( } if (proginfo->InputsRead & VARYING_BIT_POS) { - /* Must do this after setting up t->inputs, and before - * emitting constant references, below: - */ - emit_wpos(st_context(ctx), t, proginfo, ureg); + /* Must do this after setting up t->inputs. */ + emit_wpos(st_context(ctx), t, proginfo, ureg, + program->wpos_transform_const); } if (proginfo->InputsRead & VARYING_BIT_FACE) @@ -5539,6 +5532,17 @@ get_mesa_program(struct gl_context *ctx, do_set_program_inouts(shader->ir, prog, shader->Stage); count_resources(v, prog); + /* This must be done before the uniform storage is associated. */ + if (shader->Type == GL_FRAGMENT_SHADER && + prog->InputsRead & VARYING_BIT_POS){ + static const gl_state_index wposTransformState[STATE_LENGTH] = { + STATE_INTERNAL, STATE_FB_WPOS_Y_TRANSFORM + }; + + v->wpos_transform_const = _mesa_add_state_reference(prog->Parameters, + wposTransformState); + } + _mesa_reference_program(ctx, &shader->Program, prog); /* This has to be done last. Any operation the can cause |