Conor McCarthy : vkd3d-shader: Emit saturate modifier for double-precision float registers.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: 2f09f1d3591f75c033a9f5d870463fca90f459af
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=2f09f1d3591f75c033a9f5d8...

Author: Conor McCarthy 
Date:   Fri Jul 30 23:27:23 2021 +1000

vkd3d-shader: Emit saturate modifier for double-precision float registers.

Signed-off-by: Conor McCarthy 
Signed-off-by: Henri Verbeet 
Signed-off-by: Alexandre Julliard

---

libs/vkd3d-shader/spirv.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index c18f694..be7330e 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -2786,6 +2786,14 @@ static uint32_t vkd3d_dxbc_compiler_get_constant_float_vector(struct vkd3d_dxbc_
             component_count, (const uint32_t *)values);
 }

+static uint32_t vkd3d_dxbc_compiler_get_constant_double_vector(struct vkd3d_dxbc_compiler *compiler,
+        double value, unsigned int component_count)
+{
+    const double values[] = {value, value};
+    return vkd3d_dxbc_compiler_get_constant64(compiler, VKD3D_SHADER_COMPONENT_DOUBLE,
+            component_count, (const uint64_t *)values);
+}
+
 static uint32_t vkd3d_dxbc_compiler_get_type_id_for_reg(struct vkd3d_dxbc_compiler *compiler,
         const struct vkd3d_shader_register *reg, DWORD write_mask)
 {
@@ -3763,11 +3771,19 @@ static uint32_t vkd3d_dxbc_compiler_emit_sat(struct vkd3d_dxbc_compiler *compile
     struct vkd3d_spirv_builder *builder = &compiler->spirv_builder;
     uint32_t type_id, zero_id, one_id;

-    zero_id = vkd3d_dxbc_compiler_get_constant_float_vector(compiler, 0.0f, component_count);
-    one_id = vkd3d_dxbc_compiler_get_constant_float_vector(compiler, 1.0f, component_count);
+    if (reg->data_type == VKD3D_DATA_DOUBLE)
+    {
+        zero_id = vkd3d_dxbc_compiler_get_constant_double_vector(compiler, 0.0, component_count);
+        one_id = vkd3d_dxbc_compiler_get_constant_double_vector(compiler, 1.0, component_count);
+    }
+    else
+    {
+        zero_id = vkd3d_dxbc_compiler_get_constant_float_vector(compiler, 0.0f, component_count);
+        one_id = vkd3d_dxbc_compiler_get_constant_float_vector(compiler, 1.0f, component_count);
+    }

type_id = vkd3d_dxbc_compiler_get_type_id_for_reg(compiler, reg, write_mask);
-    if (reg->data_type == VKD3D_DATA_FLOAT)
+    if (reg->data_type == VKD3D_DATA_FLOAT || reg->data_type == VKD3D_DATA_DOUBLE)
         return vkd3d_spirv_build_op_glsl_std450_nclamp(builder, type_id, val_id, zero_id, one_id);

FIXME("Unhandled data type %#x.\n", reg->data_type);