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libs/vkd3d-shader: Implement floating-point comparison instructions.

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This commit is contained in:
Józef Kucia 2017-06-26 17:03:31 +02:00
parent cd8eb358e9
commit cb79f2ec65
2 changed files with 64 additions and 0 deletions
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63
libs/vkd3d-shader/spirv.c
View File

@ -495,6 +495,11 @@ static uint32_t vkd3d_spirv_build_op_type_void(struct vkd3d_spirv_builder *build
return vkd3d_spirv_build_op_r(builder, &builder->global_stream, SpvOpTypeVoid);
}
static uint32_t vkd3d_spirv_build_op_type_bool(struct vkd3d_spirv_builder *builder)
{
return vkd3d_spirv_build_op_r(builder, &builder->global_stream, SpvOpTypeBool);
}
static uint32_t vkd3d_spirv_build_op_type_float(struct vkd3d_spirv_builder *builder,
uint32_t width)
{
@ -631,6 +636,14 @@ static void vkd3d_spirv_build_op_store(struct vkd3d_spirv_builder *builder,
pointer_id, object_id, memory_access);
}
static uint32_t vkd3d_spirv_build_op_select(struct vkd3d_spirv_builder *builder,
uint32_t result_type, uint32_t condition_id, uint32_t object0_id, uint32_t object1_id)
{
uint32_t operands[] = {condition_id, object0_id, object1_id};
return vkd3d_spirv_build_op_trv(builder, &builder->function_stream, SpvOpSelect,
result_type, operands, ARRAY_SIZE(operands));
}
static void vkd3d_spirv_build_op_return(struct vkd3d_spirv_builder *builder)
{
vkd3d_spirv_build_op(&builder->function_stream, SpvOpReturn);
@ -680,6 +693,9 @@ static uint32_t vkd3d_spirv_get_type_id(struct vkd3d_spirv_builder *builder,
case VKD3D_TYPE_UINT:
id = vkd3d_spirv_build_op_type_int(builder, 32, component_type == VKD3D_TYPE_INT);
break;
case VKD3D_TYPE_BOOL:
id = vkd3d_spirv_build_op_type_bool(builder);
break;
default:
FIXME("Unhandled component type %#x.\n", component_type);
id = 0;
@ -1870,6 +1886,49 @@ static void vkd3d_dxbc_compiler_emit_bitfield_instruction(struct vkd3d_dxbc_comp
}
}
static void vkd3d_dxbc_compiler_emit_comparison_instruction(struct vkd3d_dxbc_compiler *compiler,
const struct vkd3d_shader_instruction *instruction)
{
static const unsigned int d3d_true[] = {0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff};
static const unsigned int d3d_false[] = {0, 0, 0, 0};
uint32_t src0_id, src1_id, type_id, result_id, true_id, false_id;
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;
unsigned int component_count;
SpvOp op;
switch (instruction->handler_idx)
{
case VKD3DSIH_EQ:
op = SpvOpFOrdEqual;
break;
case VKD3DSIH_NE:
op = SpvOpFUnordNotEqual;
break;
default:
ERR("Unexpected instruction %#x.\n", instruction->handler_idx);
return;
}
component_count = vkd3d_write_mask_component_count(dst->write_mask);
src0_id = vkd3d_dxbc_compiler_emit_load_src(compiler, &src[0], dst->write_mask);
src1_id = vkd3d_dxbc_compiler_emit_load_src(compiler, &src[1], dst->write_mask);
type_id = vkd3d_spirv_get_type_id(builder, VKD3D_TYPE_BOOL, component_count);
result_id = vkd3d_spirv_build_op_tr2(builder, &builder->function_stream,
op, type_id, src0_id, src1_id);
true_id = vkd3d_dxbc_compiler_get_constant(compiler, VKD3D_TYPE_UINT, component_count, d3d_true);
false_id = vkd3d_dxbc_compiler_get_constant(compiler, VKD3D_TYPE_UINT, component_count, d3d_false);
type_id = vkd3d_spirv_get_type_id(builder, VKD3D_TYPE_UINT, component_count);
result_id = vkd3d_spirv_build_op_select(builder, type_id, result_id, true_id, false_id);
vkd3d_dxbc_compiler_emit_store_reg(compiler, &dst->reg, dst->write_mask, result_id);
}
static void vkd3d_dxbc_compiler_emit_shader_epilogue(struct vkd3d_dxbc_compiler *compiler)
{
struct vkd3d_spirv_builder *builder = &compiler->spirv_builder;
@ -1948,6 +2007,10 @@ void vkd3d_dxbc_compiler_handle_instruction(struct vkd3d_dxbc_compiler *compiler
case VKD3DSIH_DP2:
vkd3d_dxbc_compiler_emit_dot(compiler, instruction);
break;
case VKD3DSIH_EQ:
case VKD3DSIH_NE:
vkd3d_dxbc_compiler_emit_comparison_instruction(compiler, instruction);
break;
case VKD3DSIH_BFI:
vkd3d_dxbc_compiler_emit_bitfield_instruction(compiler, instruction);
break;

1
libs/vkd3d-shader/vkd3d_shader_private.h
View File

@ -357,6 +357,7 @@ enum vkd3d_component_type
VKD3D_TYPE_UINT = 1,
VKD3D_TYPE_INT = 2,
VKD3D_TYPE_FLOAT = 3,
VKD3D_TYPE_BOOL,
VKD3D_TYPE_COUNT,
};