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libs/vkd3d-shader: Translate discard instructions.

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This commit is contained in:
Józef Kucia 2017-08-30 16:41:15 +02:00
parent 99b72d4db1
commit 87a2fec426
1 changed files with 31 additions and 0 deletions
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31
libs/vkd3d-shader/spirv.c
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@ -1094,6 +1094,11 @@ static uint32_t vkd3d_spirv_build_op_select(struct vkd3d_spirv_builder *builder,
SpvOpSelect, result_type, condition_id, object0_id, object1_id);
}
static void vkd3d_spirv_build_op_kill(struct vkd3d_spirv_builder *builder)
{
vkd3d_spirv_build_op(&builder->function_stream, SpvOpKill);
}
static void vkd3d_spirv_build_op_return(struct vkd3d_spirv_builder *builder)
{
vkd3d_spirv_build_op(&builder->function_stream, SpvOpReturn);
@ -3954,6 +3959,27 @@ static void vkd3d_dxbc_compiler_emit_return(struct vkd3d_dxbc_compiler *compiler
vkd3d_spirv_build_op_return(builder);
}
static void vkd3d_dxbc_compiler_emit_kill(struct vkd3d_dxbc_compiler *compiler,
const struct vkd3d_shader_instruction *instruction)
{
struct vkd3d_spirv_builder *builder = &compiler->spirv_builder;
const struct vkd3d_shader_src_param *src = instruction->src;
uint32_t condition_id, target_block_id, merge_block_id;
condition_id = vkd3d_dxbc_compiler_emit_load_src(compiler, src, VKD3DSP_WRITEMASK_0);
condition_id = vkd3d_dxbc_compiler_emit_int_to_bool(compiler,
VKD3D_SHADER_CONDITIONAL_OP_NZ, 1, condition_id);
merge_block_id = vkd3d_spirv_alloc_id(builder);
target_block_id = vkd3d_spirv_alloc_id(builder);
vkd3d_spirv_build_op_selection_merge(builder, merge_block_id, SpvSelectionControlMaskNone);
vkd3d_spirv_build_op_branch_conditional(builder, condition_id, target_block_id, merge_block_id);
vkd3d_spirv_build_op_label(builder, target_block_id);
vkd3d_spirv_build_op_kill(builder);
vkd3d_spirv_build_op_label(builder, merge_block_id);
}
static struct vkd3d_control_flow_info *vkd3d_dxbc_compiler_push_control_flow_level(
struct vkd3d_dxbc_compiler *compiler)
{
@ -4260,6 +4286,10 @@ static void vkd3d_dxbc_compiler_emit_control_flow_instruction(struct vkd3d_dxbc_
}
break;
case VKD3DSIH_TEXKILL:
vkd3d_dxbc_compiler_emit_kill(compiler, instruction);
break;
default:
ERR("Unexpected instruction %#x.\n", instruction->handler_idx);
break;
@ -5200,6 +5230,7 @@ void vkd3d_dxbc_compiler_handle_instruction(struct vkd3d_dxbc_compiler *compiler
case VKD3DSIH_LOOP:
case VKD3DSIH_RET:
case VKD3DSIH_SWITCH:
case VKD3DSIH_TEXKILL:
vkd3d_dxbc_compiler_emit_control_flow_instruction(compiler, instruction);
break;
case VKD3DSIH_LD: