=?UTF-8?Q?J=C3=B3zef=20Kucia=20?=: vkd3d-shader: Implement conservative depth output.

[Alexandre Julliard]

Module: vkd3d
Branch: master
Commit: c81e28c03a33647bced0485fe4f2bfa4f5933a72
URL:    https://source.winehq.org/git/vkd3d.git/?a=commit;h=c81e28c03a33647bced0485fe4f2bfa4f5933a72

Author: Józef Kucia <jkucia at codeweavers.com>
Date:   Fri Oct 19 16:55:49 2018 +0200

vkd3d-shader: Implement conservative depth output.

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/dxbc.c  |  2 ++
 libs/vkd3d-shader/spirv.c | 23 +++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/libs/vkd3d-shader/dxbc.c b/libs/vkd3d-shader/dxbc.c
index 5daf07a..eb1729c 100644
--- a/libs/vkd3d-shader/dxbc.c
+++ b/libs/vkd3d-shader/dxbc.c
@@ -1567,6 +1567,8 @@ static bool shader_sm4_is_scalar_register(const struct vkd3d_shader_register *re
     switch (reg->type)
     {
         case VKD3DSPR_DEPTHOUT:
+        case VKD3DSPR_DEPTHOUTGE:
+        case VKD3DSPR_DEPTHOUTLE:
         case VKD3DSPR_GSINSTID:
         case VKD3DSPR_LOCALTHREADINDEX:
         case VKD3DSPR_OUTPOINTID:
diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index f1eea02..63ef7c2 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -2246,6 +2246,8 @@ static bool vkd3d_dxbc_compiler_get_register_name(char *buffer, unsigned int buf
             snprintf(buffer, buffer_size, "o%u", idx);
             break;
         case VKD3DSPR_DEPTHOUT:
+        case VKD3DSPR_DEPTHOUTGE:
+        case VKD3DSPR_DEPTHOUTLE:
             snprintf(buffer, buffer_size, "oDepth");
             break;
         case VKD3DSPR_TESSCOORD:
@@ -2470,6 +2472,8 @@ static uint32_t vkd3d_dxbc_compiler_get_register_id(struct vkd3d_dxbc_compiler *
         case VKD3DSPR_OUTPUT:
         case VKD3DSPR_COLOROUT:
         case VKD3DSPR_DEPTHOUT:
+        case VKD3DSPR_DEPTHOUTGE:
+        case VKD3DSPR_DEPTHOUTLE:
         case VKD3DSPR_CONSTBUFFER:
         case VKD3DSPR_IMMCONSTBUFFER:
         case VKD3DSPR_SAMPLER:
@@ -3056,8 +3060,26 @@ vkd3d_register_builtins[] =
     {VKD3DSPR_TESSCOORD,        {VKD3D_TYPE_FLOAT, 3, SpvBuiltInTessCoord}},
 
     {VKD3DSPR_DEPTHOUT,         {VKD3D_TYPE_FLOAT, 1, SpvBuiltInFragDepth}},
+    {VKD3DSPR_DEPTHOUTGE,       {VKD3D_TYPE_FLOAT, 1, SpvBuiltInFragDepth}},
+    {VKD3DSPR_DEPTHOUTLE,       {VKD3D_TYPE_FLOAT, 1, SpvBuiltInFragDepth}},
 };
 
+static void vkd3d_dxbc_compiler_emit_register_execution_mode(struct vkd3d_dxbc_compiler *compiler,
+        const struct vkd3d_shader_register *reg)
+{
+    switch (reg->type)
+    {
+        case VKD3DSPR_DEPTHOUTGE:
+            vkd3d_dxbc_compiler_emit_execution_mode(compiler, SpvExecutionModeDepthGreater, NULL, 0);
+            break;
+        case VKD3DSPR_DEPTHOUTLE:
+            vkd3d_dxbc_compiler_emit_execution_mode(compiler, SpvExecutionModeDepthLess, NULL, 0);
+            break;
+        default:
+            return;
+    }
+}
+
 static const struct vkd3d_spirv_builtin *get_spirv_builtin_for_sysval(
         const struct vkd3d_dxbc_compiler *compiler, enum vkd3d_shader_input_sysval_semantic sysval)
 {
@@ -3458,6 +3480,7 @@ static void vkd3d_dxbc_compiler_emit_output(struct vkd3d_dxbc_compiler *compiler
         if (builtin)
         {
             vkd3d_dxbc_compiler_decorate_builtin(compiler, id, builtin->spirv_builtin);
+            vkd3d_dxbc_compiler_emit_register_execution_mode(compiler, &dst->reg);
             if (component_idx)
                 FIXME("Unhandled component index %u.\n", component_idx);
         }