[PATCH 4/5] wined3d: Drop redundant check for instanced rendering from drawStridedFast.

[Matteo Bruni]

We need GL_ARB_instanced_arrays to be able to take the fastest path and
that's already checked in draw_primitive.
Note that GL_ARB_instanced_arrays provides glDrawElementsInstanced if
GL_ARB_draw_instanced is not supported so we don't need to explicitly
check for the latter.
---
 dlls/wined3d/drawprim.c | 25 +++++++++----------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/dlls/wined3d/drawprim.c b/dlls/wined3d/drawprim.c
index 98e7cf4..4916c05 100644
--- a/dlls/wined3d/drawprim.c
+++ b/dlls/wined3d/drawprim.c
@@ -44,26 +44,19 @@ static void drawStridedFast(const struct wined3d_gl_info *gl_info, GLenum primit
         GLenum idxtype = idx_size == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT;
         if (instance_count)
         {
-            if (!gl_info->supported[ARB_DRAW_INSTANCED] && !gl_info->supported[ARB_INSTANCED_ARRAYS])
+            if (start_instance)
+                FIXME("Start instance (%u) not supported.\n", start_instance);
+            if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
             {
-                FIXME("Instanced drawing not supported.\n");
+                GL_EXTCALL(glDrawElementsInstancedBaseVertex(primitive_type, count, idxtype,
+                        (const char *)idx_data + (idx_size * start_idx), instance_count, base_vertex_index));
+                checkGLcall("glDrawElementsInstancedBaseVertex");
             }
             else
             {
-                if (start_instance)
-                    FIXME("Start instance (%u) not supported.\n", start_instance);
-                if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
-                {
-                    GL_EXTCALL(glDrawElementsInstancedBaseVertex(primitive_type, count, idxtype,
-                            (const char *)idx_data + (idx_size * start_idx), instance_count, base_vertex_index));
-                    checkGLcall("glDrawElementsInstancedBaseVertex");
-                }
-                else
-                {
-                    GL_EXTCALL(glDrawElementsInstanced(primitive_type, count, idxtype,
-                            (const char *)idx_data + (idx_size * start_idx), instance_count));
-                    checkGLcall("glDrawElementsInstanced");
-                }
+                GL_EXTCALL(glDrawElementsInstanced(primitive_type, count, idxtype,
+                        (const char *)idx_data + (idx_size * start_idx), instance_count));
+                checkGLcall("glDrawElementsInstanced");
             }
         }
         else if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
-- 
2.0.5