From: Zebediah Figura zfigura@codeweavers.com
--- libs/vkd3d-shader/spirv.c | 41 +++++++++++++++++++++++++++++++++++++-- 1 file changed, 39 insertions(+), 2 deletions(-)
diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c index 2725ed80..a04d315b 100644 --- a/libs/vkd3d-shader/spirv.c +++ b/libs/vkd3d-shader/spirv.c @@ -1715,6 +1715,15 @@ static uint32_t vkd3d_spirv_build_op_glsl_std450_cos(struct vkd3d_spirv_builder return vkd3d_spirv_build_op_glsl_std450_tr1(builder, GLSLstd450Cos, result_type, operand); }
+static uint32_t vkd3d_spirv_build_op_glsl_std450_max(struct vkd3d_spirv_builder *builder, + uint32_t result_type, uint32_t x, uint32_t y) +{ + uint32_t glsl_std450_id = vkd3d_spirv_get_glsl_std450_instr_set(builder); + uint32_t operands[] = {x, y}; + return vkd3d_spirv_build_op_ext_inst(builder, result_type, glsl_std450_id, + GLSLstd450NMax, operands, ARRAY_SIZE(operands)); +} + static uint32_t vkd3d_spirv_build_op_glsl_std450_nclamp(struct vkd3d_spirv_builder *builder, uint32_t result_type, uint32_t x, uint32_t min, uint32_t max) { @@ -6536,7 +6545,6 @@ static SpvOp spirv_compiler_map_alu_instruction(const struct vkd3d_shader_instru {VKD3DSIH_DTOU, SpvOpConvertFToU}, {VKD3DSIH_FTOD, SpvOpFConvert}, {VKD3DSIH_FTOI, SpvOpConvertFToS}, - {VKD3DSIH_FTOU, SpvOpConvertFToU}, {VKD3DSIH_IADD, SpvOpIAdd}, {VKD3DSIH_INEG, SpvOpSNegate}, {VKD3DSIH_ISHL, SpvOpShiftLeftLogical}, @@ -7002,6 +7010,33 @@ static void spirv_compiler_emit_udiv(struct spirv_compiler *compiler, } }
+static void spirv_compiler_emit_ftou(struct spirv_compiler *compiler, + const struct vkd3d_shader_instruction *instruction) +{ + struct vkd3d_spirv_builder *builder = &compiler->spirv_builder; + const struct vkd3d_shader_dst_param *dst = instruction->dst; + const struct vkd3d_shader_src_param *src = instruction->src; + uint32_t src_type_id, type_id, src_id, zero_id, val_id; + + assert(instruction->dst_count == 1); + assert(instruction->src_count == 1); + + /* OpConvertFToU has undefined results if the result cannot be represented + * as an unsigned integer, but Direct3D expects the result to saturate, + * and for NaN to yield zero. */ + + src_type_id = spirv_compiler_get_type_id_for_reg(compiler, &src->reg, dst->write_mask); + type_id = spirv_compiler_get_type_id_for_dst(compiler, dst); + src_id = spirv_compiler_emit_load_src(compiler, src, dst->write_mask); + zero_id = spirv_compiler_get_constant_float_vector(compiler, 0.0f, + vkd3d_write_mask_component_count(dst->write_mask)); + + val_id = vkd3d_spirv_build_op_glsl_std450_max(builder, src_type_id, src_id, zero_id); + val_id = vkd3d_spirv_build_op_tr1(builder, &builder->function_stream, SpvOpConvertFToU, type_id, val_id); + + spirv_compiler_emit_store_dst(compiler, dst, val_id); +} + static void spirv_compiler_emit_bitfield_instruction(struct spirv_compiler *compiler, const struct vkd3d_shader_instruction *instruction) { @@ -9286,7 +9321,6 @@ static int spirv_compiler_handle_instruction(struct spirv_compiler *compiler, case VKD3DSIH_DTOU: case VKD3DSIH_FTOD: case VKD3DSIH_FTOI: - case VKD3DSIH_FTOU: case VKD3DSIH_IADD: case VKD3DSIH_INEG: case VKD3DSIH_ISHL: @@ -9347,6 +9381,9 @@ static int spirv_compiler_handle_instruction(struct spirv_compiler *compiler, case VKD3DSIH_UDIV: spirv_compiler_emit_udiv(compiler, instruction); break; + case VKD3DSIH_FTOU: + spirv_compiler_emit_ftou(compiler, instruction); + break; case VKD3DSIH_DEQ: case VKD3DSIH_DGE: case VKD3DSIH_DLT: