=?UTF-8?Q?J=C3=B3zef=20Kucia=20?=: libs/vkd3d-shader: Translate partial derivative instructions.
Alexandre Julliard
julliard at winehq.org
Tue Aug 14 13:40:29 CDT 2018
Module: vkd3d
Branch: master
Commit: b707e36d562982cf8abee1fc00036b3a04be59f5
URL: https://source.winehq.org/git/vkd3d.git/?a=commit;h=b707e36d562982cf8abee1fc00036b3a04be59f5
Author: Józef Kucia <jkucia at codeweavers.com>
Date: Wed Aug 1 15:34:38 2018 +0200
libs/vkd3d-shader: Translate partial derivative instructions.
Signed-off-by: Józef Kucia <jkucia at codeweavers.com>
Signed-off-by: Henri Verbeet <hverbeet at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>
---
libs/vkd3d-shader/spirv.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 65 insertions(+)
diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index 21d6a1a..797ea1c 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -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;
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