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libs/vkd3d-shader: Translate partial derivative instructions.

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Signed-off-by: Józef Kucia <jkucia@codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Józef Kucia 2018-08-01 15:34:38 +02:00 committed by Alexandre Julliard
parent b3f28cbfde
commit b707e36d56
1 changed files with 65 additions and 0 deletions
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65
libs/vkd3d-shader/spirv.c
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@ -4954,6 +4954,63 @@ static void vkd3d_dxbc_compiler_emit_control_flow_instruction(struct vkd3d_dxbc_
}
}
static void vkd3d_dxbc_compiler_emit_deriv_instruction(struct vkd3d_dxbc_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;
const struct instruction_info *info;
uint32_t type_id, src_id, val_id;
unsigned int component_count;
unsigned int i;
static const struct instruction_info
{
enum VKD3D_SHADER_INSTRUCTION_HANDLER handler_idx;
SpvOp op;
bool needs_derivative_control;
}
deriv_instructions[] =
{
{VKD3DSIH_DSX, SpvOpDPdx},
{VKD3DSIH_DSX_COARSE, SpvOpDPdxCoarse, true},
{VKD3DSIH_DSX_FINE, SpvOpDPdxFine, true},
{VKD3DSIH_DSY, SpvOpDPdy},
{VKD3DSIH_DSY_COARSE, SpvOpDPdyCoarse, true},
{VKD3DSIH_DSY_FINE, SpvOpDPdyFine, true},
};
info = NULL;
for (i = 0; i < ARRAY_SIZE(deriv_instructions); ++i)
{
if (deriv_instructions[i].handler_idx == instruction->handler_idx)
{
info = &deriv_instructions[i];
break;
}
}
if (!info)
{
ERR("Unexpected instruction %#x.\n", instruction->handler_idx);
return;
}
if (info->needs_derivative_control)
vkd3d_spirv_enable_capability(builder, SpvCapabilityDerivativeControl);
assert(instruction->dst_count == 1);
assert(instruction->src_count == 1);
component_count = vkd3d_write_mask_component_count(dst->write_mask);
type_id = vkd3d_spirv_get_type_id(builder,
vkd3d_component_type_from_data_type(dst->reg.data_type), component_count);
src_id = vkd3d_dxbc_compiler_emit_load_src(compiler, src, dst->write_mask);
val_id = vkd3d_spirv_build_op_tr1(builder, &builder->function_stream, info->op, type_id, src_id);
vkd3d_dxbc_compiler_emit_store_dst(compiler, dst, val_id);
}
struct vkd3d_shader_image
{
uint32_t id;
@ -6060,6 +6117,14 @@ void vkd3d_dxbc_compiler_handle_instruction(struct vkd3d_dxbc_compiler *compiler
case VKD3DSIH_TEXKILL:
vkd3d_dxbc_compiler_emit_control_flow_instruction(compiler, instruction);
break;
case VKD3DSIH_DSX:
case VKD3DSIH_DSX_COARSE:
case VKD3DSIH_DSX_FINE:
case VKD3DSIH_DSY:
case VKD3DSIH_DSY_COARSE:
case VKD3DSIH_DSY_FINE:
vkd3d_dxbc_compiler_emit_deriv_instruction(compiler, instruction);
break;
case VKD3DSIH_LD:
vkd3d_dxbc_compiler_emit_ld(compiler, instruction);
break;