Henri Verbeet : wined3d: Use wined3d_bit_scan() in vshader_get_input().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: dc990b6b2b8d55eab0b50cd4529fb266e7dc321d
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=dc990b6b2b8d55eab0b50cd45...

Author: Henri Verbeet <hverbeet(a)codeweavers.com>
Date:   Wed Jan 26 15:43:41 2022 +0100

wined3d: Use wined3d_bit_scan() in vshader_get_input().

Signed-off-by: Henri Verbeet <hverbeet(a)codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard(a)winehq.org>

---

 dlls/wined3d/shader.c          | 16 ++++++++--------
 dlls/wined3d/wined3d_private.h |  4 ++--
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/dlls/wined3d/shader.c b/dlls/wined3d/shader.c
index 43c6bb402c0..2731639d554 100644
--- a/dlls/wined3d/shader.c
+++ b/dlls/wined3d/shader.c
@@ -3578,24 +3578,24 @@ static BOOL match_usage(BYTE usage1, BYTE usage_idx1, BYTE usage2, BYTE usage_id
     return FALSE;
 }
 
-BOOL vshader_get_input(const struct wined3d_shader *shader,
-        BYTE usage_req, BYTE usage_idx_req, unsigned int *regnum)
+bool vshader_get_input(const struct wined3d_shader *shader,
+        uint8_t usage_req, uint8_t usage_idx_req, unsigned int *regnum)
 {
-    WORD map = shader->reg_maps.input_registers;
+    uint32_t map = shader->reg_maps.input_registers & 0xffff;
     unsigned int i;
 
-    for (i = 0; map; map >>= 1, ++i)
+    while (map)
     {
-        if (!(map & 1)) continue;
-
+        i = wined3d_bit_scan(&map);
         if (match_usage(shader->u.vs.attributes[i].usage,
                 shader->u.vs.attributes[i].usage_idx, usage_req, usage_idx_req))
         {
             *regnum = i;
-            return TRUE;
+            return true;
         }
     }
-    return FALSE;
+
+    return false;
 }
 
 static HRESULT shader_init(struct wined3d_shader *shader, struct wined3d_device *device,
diff --git a/dlls/wined3d/wined3d_private.h b/dlls/wined3d/wined3d_private.h
index 8e45b61c61e..e28fc3b880d 100644
--- a/dlls/wined3d/wined3d_private.h
+++ b/dlls/wined3d/wined3d_private.h
@@ -5759,8 +5759,8 @@ void find_ps_compile_args(const struct wined3d_state *state, const struct wined3
         BOOL position_transformed, struct ps_compile_args *args,
         const struct wined3d_context *context) DECLSPEC_HIDDEN;
 
-BOOL vshader_get_input(const struct wined3d_shader *shader,
-        BYTE usage_req, BYTE usage_idx_req, unsigned int *regnum) DECLSPEC_HIDDEN;
+bool vshader_get_input(const struct wined3d_shader *shader,
+        uint8_t usage_req, uint8_t usage_idx_req, unsigned int *regnum) DECLSPEC_HIDDEN;
 void find_vs_compile_args(const struct wined3d_state *state, const struct wined3d_shader *shader,
         struct vs_compile_args *args, const struct wined3d_context *context) DECLSPEC_HIDDEN;