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libs/vkd3d-shader: Translate f32tof16 instruction.

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This commit is contained in:
Józef Kucia 2017-07-06 18:11:57 +02:00
parent a6e19e9966
commit f5319efa4b
1 changed files with 48 additions and 0 deletions
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48
libs/vkd3d-shader/spirv.c
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@ -629,6 +629,13 @@ static uint32_t vkd3d_spirv_build_op_vector_shuffle(struct vkd3d_spirv_builder *
result_type, vector1_id, vector2_id, components, component_count);
}
static uint32_t vkd3d_spirv_build_op_composite_construct(struct vkd3d_spirv_builder *builder,
uint32_t result_type, const uint32_t *constituents, unsigned int constituent_count)
{
return vkd3d_spirv_build_op_trv(builder, &builder->function_stream, SpvOpCompositeConstruct,
result_type, constituents, constituent_count);
}
static uint32_t vkd3d_spirv_build_op_composite_extract(struct vkd3d_spirv_builder *builder,
uint32_t result_type, uint32_t composite_id, const uint32_t *indexes, unsigned int index_count)
{
@ -1143,6 +1150,12 @@ static uint32_t vkd3d_dxbc_compiler_get_constant_uint(struct vkd3d_dxbc_compiler
return vkd3d_dxbc_compiler_get_constant(compiler, VKD3D_TYPE_UINT, 1, &value);
}
static uint32_t vkd3d_dxbc_compiler_get_constant_float(struct vkd3d_dxbc_compiler *compiler,
float value)
{
return vkd3d_dxbc_compiler_get_constant(compiler, VKD3D_TYPE_FLOAT, 1, (uint32_t *)&value);
}
static bool vkd3d_dxbc_compiler_get_register_name(char *buffer,const struct vkd3d_shader_register *reg)
{
switch (reg->type)
@ -2170,6 +2183,38 @@ static void vkd3d_dxbc_compiler_emit_f16tof32(struct vkd3d_dxbc_compiler *compil
}
}
static void vkd3d_dxbc_compiler_emit_f32tof16(struct vkd3d_dxbc_compiler *compiler,
const struct vkd3d_shader_instruction *instruction)
{
uint32_t instr_set_id, type_id, scalar_type_id, src_id, zero_id, constituents[2], result_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;
DWORD write_mask;
unsigned int i;
instr_set_id = vkd3d_spirv_get_glsl_std450_instr_set(builder);
type_id = vkd3d_spirv_get_type_id(builder, VKD3D_TYPE_FLOAT, 2);
scalar_type_id = vkd3d_spirv_get_type_id(builder, VKD3D_TYPE_UINT, 1);
zero_id = vkd3d_dxbc_compiler_get_constant_float(compiler, 0.0f);
/* FIXME: Consider a single PackHalf2x16 intruction per 2 components. */
for (i = 0; i < VKD3D_VEC4_SIZE; ++i)
{
if (!(write_mask = dst->write_mask & (VKD3DSP_WRITEMASK_0 << i)))
continue;
src_id = vkd3d_dxbc_compiler_emit_load_src(compiler, src, write_mask);
constituents[0] = src_id;
constituents[1] = zero_id;
src_id = vkd3d_spirv_build_op_composite_construct(builder,
type_id, constituents, ARRAY_SIZE(constituents));
result_id = vkd3d_spirv_build_op_ext_inst(builder, scalar_type_id,
instr_set_id, GLSLstd450PackHalf2x16, &src_id, 1);
vkd3d_dxbc_compiler_emit_store_reg(compiler, &dst->reg, write_mask, result_id);
}
}
static void vkd3d_dxbc_compiler_emit_comparison_instruction(struct vkd3d_dxbc_compiler *compiler,
const struct vkd3d_shader_instruction *instruction)
{
@ -2393,6 +2438,9 @@ void vkd3d_dxbc_compiler_handle_instruction(struct vkd3d_dxbc_compiler *compiler
case VKD3DSIH_F16TOF32:
vkd3d_dxbc_compiler_emit_f16tof32(compiler, instruction);
break;
case VKD3DSIH_F32TOF16:
vkd3d_dxbc_compiler_emit_f32tof16(compiler, instruction);
break;
case VKD3DSIH_IF:
case VKD3DSIH_ELSE:
case VKD3DSIH_ENDIF: