Matteo Bruni : d3d9: Don't do instanced draws in DrawPrimitive() and DrawPrimitiveUP().

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 03321ea66a6d47b44dff9e8f302ae1e5a918531e
URL:    https://gitlab.winehq.org/wine/wine/-/commit/03321ea66a6d47b44dff9e8f302ae1e...

Author: Matteo Bruni 
Date:   Thu Jul 13 21:14:52 2023 +0200

d3d9: Don't do instanced draws in DrawPrimitive() and DrawPrimitiveUP().

On Windows this behavior is hardware dependent. Setting instance_count
to 0 makes all our d3d versions consistent in this regard and avoids
triggering the FIXME() in wined3d:draw_primitive_immediate_mode().

---

dlls/d3d9/device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/d3d9/device.c b/dlls/d3d9/device.c
index 1267dc8fca1..31dffbf4b60 100644
--- a/dlls/d3d9/device.c
+++ b/dlls/d3d9/device.c
@@ -3176,7 +3176,7 @@ static HRESULT WINAPI d3d9_device_DrawPrimitive(IDirect3DDevice9Ex *iface,
             wined3d_primitive_type_from_d3d(primitive_type), 0);

/* Instancing is ignored for non-indexed draws. */
-    wined3d_device_context_draw(device->immediate_context, start_vertex, vertex_count, 0, 1);
+    wined3d_device_context_draw(device->immediate_context, start_vertex, vertex_count, 0, 0);

d3d9_rts_flag_auto_gen_mipmap(device);
     wined3d_mutex_unlock();
@@ -3274,7 +3274,7 @@ static HRESULT WINAPI d3d9_device_DrawPrimitiveUP(IDirect3DDevice9Ex *iface,
     wined3d_device_apply_stateblock(device->wined3d_device, device->state);

/* Instancing is ignored for non-indexed draws. */
-    wined3d_device_context_draw(device->immediate_context, vb_pos / stride, vtx_count, 0, 1);
+    wined3d_device_context_draw(device->immediate_context, vb_pos / stride, vtx_count, 0, 0);

wined3d_stateblock_set_stream_source(device->state, 0, NULL, 0, 0);
     d3d9_rts_flag_auto_gen_mipmap(device);