From: Christian König Date: Tue, 5 Mar 2013 14:07:39 +0000 (+0100) Subject: radeonsi: rework input interpolation X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0666ffddd2a7081fbf510904340df771a5e3fe98;p=mesa.git radeonsi: rework input interpolation Signed-off-by: Christian König Reviewed-by: Tom Stellard --- diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.c b/src/gallium/drivers/radeonsi/radeonsi_shader.c index 6873f1271cb..144e0e036e6 100644 --- a/src/gallium/drivers/radeonsi/radeonsi_shader.c +++ b/src/gallium/drivers/radeonsi/radeonsi_shader.c @@ -159,13 +159,15 @@ static void declare_input_fs( unsigned input_index, const struct tgsi_full_declaration *decl) { - const char * intr_name; - unsigned chan; struct si_shader *shader = &si_shader_ctx->shader->shader; struct lp_build_context * base = &si_shader_ctx->radeon_bld.soa.bld_base.base; struct gallivm_state * gallivm = base->gallivm; LLVMTypeRef input_type = LLVMFloatTypeInContext(gallivm->context); + LLVMValueRef main_fn = si_shader_ctx->radeon_bld.main_fn; + + LLVMValueRef interp_param; + const char * intr_name; /* This value is: * [15:0] NewPrimMask (Bit mask for each quad. It is set it the @@ -177,16 +179,14 @@ static void declare_input_fs( LLVMValueRef params = LLVMGetParam(si_shader_ctx->radeon_bld.main_fn, SI_PARAM_PRIM_MASK); LLVMValueRef attr_number; + unsigned chan; + if (decl->Semantic.Name == TGSI_SEMANTIC_POSITION) { for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) { - LLVMValueRef args[1]; unsigned soa_index = radeon_llvm_reg_index_soa(input_index, chan); - args[0] = lp_build_const_int32(gallivm, chan); si_shader_ctx->radeon_bld.inputs[soa_index] = - build_intrinsic(base->gallivm->builder, - "llvm.SI.fs.read.pos", input_type, - args, 1, LLVMReadNoneAttribute); + LLVMGetParam(main_fn, SI_PARAM_POS_X_FLOAT + chan); if (chan == 3) /* RCP for fragcoord.w */ @@ -202,10 +202,8 @@ static void declare_input_fs( if (decl->Semantic.Name == TGSI_SEMANTIC_FACE) { LLVMValueRef face, is_face_positive; - face = build_intrinsic(gallivm->builder, - "llvm.SI.fs.read.face", - input_type, - NULL, 0, LLVMReadNoneAttribute); + face = LLVMGetParam(main_fn, SI_PARAM_FRONT_FACE); + is_face_positive = LLVMBuildFCmp(gallivm->builder, LLVMRealUGT, face, lp_build_const_float(gallivm, 0.0f), @@ -234,28 +232,28 @@ static void declare_input_fs( switch (decl->Interp.Interpolate) { case TGSI_INTERPOLATE_COLOR: if (si_shader_ctx->key.flatshade) { - intr_name = "llvm.SI.fs.interp.constant"; + interp_param = 0; } else { if (decl->Interp.Centroid) - intr_name = "llvm.SI.fs.interp.persp.centroid"; + interp_param = LLVMGetParam(main_fn, SI_PARAM_PERSP_CENTROID); else - intr_name = "llvm.SI.fs.interp.persp.center"; + interp_param = LLVMGetParam(main_fn, SI_PARAM_PERSP_CENTER); } break; case TGSI_INTERPOLATE_CONSTANT: - intr_name = "llvm.SI.fs.interp.constant"; + interp_param = 0; break; case TGSI_INTERPOLATE_LINEAR: if (decl->Interp.Centroid) - intr_name = "llvm.SI.fs.interp.linear.centroid"; + interp_param = LLVMGetParam(main_fn, SI_PARAM_LINEAR_CENTROID); else - intr_name = "llvm.SI.fs.interp.linear.center"; + interp_param = LLVMGetParam(main_fn, SI_PARAM_LINEAR_CENTER); break; case TGSI_INTERPOLATE_PERSPECTIVE: if (decl->Interp.Centroid) - intr_name = "llvm.SI.fs.interp.persp.centroid"; + interp_param = LLVMGetParam(main_fn, SI_PARAM_PERSP_CENTROID); else - intr_name = "llvm.SI.fs.interp.persp.center"; + interp_param = LLVMGetParam(main_fn, SI_PARAM_PERSP_CENTER); break; default: fprintf(stderr, "Warning: Unhandled interpolation mode.\n"); @@ -270,25 +268,26 @@ static void declare_input_fs( NULL, 0); } + intr_name = interp_param ? "llvm.SI.fs.interp" : "llvm.SI.fs.constant"; + /* XXX: Could there be more than TGSI_NUM_CHANNELS (4) ? */ if (decl->Semantic.Name == TGSI_SEMANTIC_COLOR && si_shader_ctx->key.color_two_side) { - LLVMValueRef args[3]; + LLVMValueRef args[4]; LLVMValueRef face, is_face_positive; LLVMValueRef back_attr_number = lp_build_const_int32(gallivm, shader->input[input_index].param_offset + 1); - face = build_intrinsic(gallivm->builder, - "llvm.SI.fs.read.face", - input_type, - NULL, 0, LLVMReadNoneAttribute); + face = LLVMGetParam(main_fn, SI_PARAM_FRONT_FACE); + is_face_positive = LLVMBuildFCmp(gallivm->builder, LLVMRealUGT, face, lp_build_const_float(gallivm, 0.0f), ""); args[2] = params; + args[3] = interp_param; for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) { LLVMValueRef llvm_chan = lp_build_const_int32(gallivm, chan); unsigned soa_index = radeon_llvm_reg_index_soa(input_index, chan); @@ -297,11 +296,13 @@ static void declare_input_fs( args[0] = llvm_chan; args[1] = attr_number; front = build_intrinsic(base->gallivm->builder, intr_name, - input_type, args, 3, LLVMReadOnlyAttribute); + input_type, args, args[3] ? 4 : 3, + LLVMReadOnlyAttribute | LLVMNoUnwindAttribute); args[1] = back_attr_number; back = build_intrinsic(base->gallivm->builder, intr_name, - input_type, args, 3, LLVMReadOnlyAttribute); + input_type, args, args[3] ? 4 : 3, + LLVMReadOnlyAttribute | LLVMNoUnwindAttribute); si_shader_ctx->radeon_bld.inputs[soa_index] = LLVMBuildSelect(gallivm->builder, @@ -314,15 +315,17 @@ static void declare_input_fs( shader->ninterp++; } else { for (chan = 0; chan < TGSI_NUM_CHANNELS; chan++) { - LLVMValueRef args[3]; + LLVMValueRef args[4]; LLVMValueRef llvm_chan = lp_build_const_int32(gallivm, chan); unsigned soa_index = radeon_llvm_reg_index_soa(input_index, chan); args[0] = llvm_chan; args[1] = attr_number; args[2] = params; + args[3] = interp_param; si_shader_ctx->radeon_bld.inputs[soa_index] = build_intrinsic(base->gallivm->builder, intr_name, - input_type, args, 3, LLVMReadOnlyAttribute); + input_type, args, args[3] ? 4 : 3, + LLVMReadOnlyAttribute | LLVMNoUnwindAttribute); } } } @@ -919,14 +922,16 @@ static const struct lp_build_tgsi_action txl_action = { static void create_function(struct si_shader_context *si_shader_ctx) { struct gallivm_state *gallivm = si_shader_ctx->radeon_bld.soa.bld_base.base.gallivm; - LLVMTypeRef params[5], f, i8, i32; + LLVMTypeRef params[20], f32, i8, i32, v2i32, v3i32; unsigned i; - f = LLVMFloatTypeInContext(gallivm->context); i8 = LLVMInt8TypeInContext(gallivm->context); i32 = LLVMInt32TypeInContext(gallivm->context); + f32 = LLVMFloatTypeInContext(gallivm->context); + v2i32 = LLVMVectorType(i32, 2); + v3i32 = LLVMVectorType(i32, 3); - params[SI_PARAM_CONST] = LLVMPointerType(f, CONST_ADDR_SPACE); + params[SI_PARAM_CONST] = LLVMPointerType(f32, CONST_ADDR_SPACE); params[SI_PARAM_SAMPLER] = LLVMPointerType(LLVMVectorType(i8, 16), CONST_ADDR_SPACE); params[SI_PARAM_RESOURCE] = LLVMPointerType(LLVMVectorType(i8, 32), CONST_ADDR_SPACE); @@ -934,9 +939,26 @@ static void create_function(struct si_shader_context *si_shader_ctx) params[SI_PARAM_VERTEX_BUFFER] = params[SI_PARAM_SAMPLER]; params[SI_PARAM_VERTEX_INDEX] = i32; radeon_llvm_create_func(&si_shader_ctx->radeon_bld, params, 5); + } else { - params[SI_PARAM_PRIM_MASK] = LLVMInt32TypeInContext(gallivm->context); - radeon_llvm_create_func(&si_shader_ctx->radeon_bld, params, 4); + params[SI_PARAM_PRIM_MASK] = i32; + params[SI_PARAM_PERSP_SAMPLE] = v2i32; + params[SI_PARAM_PERSP_CENTER] = v2i32; + params[SI_PARAM_PERSP_CENTROID] = v2i32; + params[SI_PARAM_PERSP_PULL_MODEL] = v3i32; + params[SI_PARAM_LINEAR_SAMPLE] = v2i32; + params[SI_PARAM_LINEAR_CENTER] = v2i32; + params[SI_PARAM_LINEAR_CENTROID] = v2i32; + params[SI_PARAM_LINE_STIPPLE_TEX] = f32; + params[SI_PARAM_POS_X_FLOAT] = f32; + params[SI_PARAM_POS_Y_FLOAT] = f32; + params[SI_PARAM_POS_Z_FLOAT] = f32; + params[SI_PARAM_POS_W_FLOAT] = f32; + params[SI_PARAM_FRONT_FACE] = f32; + params[SI_PARAM_ANCILLARY] = f32; + params[SI_PARAM_SAMPLE_COVERAGE] = f32; + params[SI_PARAM_POS_FIXED_PT] = f32; + radeon_llvm_create_func(&si_shader_ctx->radeon_bld, params, 20); } radeon_llvm_shader_type(si_shader_ctx->radeon_bld.main_fn, si_shader_ctx->type); diff --git a/src/gallium/drivers/radeonsi/radeonsi_shader.h b/src/gallium/drivers/radeonsi/radeonsi_shader.h index 4c2be80d366..fe771cee660 100644 --- a/src/gallium/drivers/radeonsi/radeonsi_shader.h +++ b/src/gallium/drivers/radeonsi/radeonsi_shader.h @@ -47,7 +47,23 @@ #define SI_PARAM_VERTEX_INDEX 4 /* PS only parameters */ -#define SI_PARAM_PRIM_MASK 3 +#define SI_PARAM_PRIM_MASK 3 +#define SI_PARAM_PERSP_SAMPLE 4 +#define SI_PARAM_PERSP_CENTER 5 +#define SI_PARAM_PERSP_CENTROID 6 +#define SI_PARAM_PERSP_PULL_MODEL 7 +#define SI_PARAM_LINEAR_SAMPLE 8 +#define SI_PARAM_LINEAR_CENTER 9 +#define SI_PARAM_LINEAR_CENTROID 10 +#define SI_PARAM_LINE_STIPPLE_TEX 11 +#define SI_PARAM_POS_X_FLOAT 12 +#define SI_PARAM_POS_Y_FLOAT 13 +#define SI_PARAM_POS_Z_FLOAT 14 +#define SI_PARAM_POS_W_FLOAT 15 +#define SI_PARAM_FRONT_FACE 16 +#define SI_PARAM_ANCILLARY 17 +#define SI_PARAM_SAMPLE_COVERAGE 18 +#define SI_PARAM_POS_FIXED_PT 19 struct si_shader_io { unsigned name;