[PATCH 6/9] wined3d: Add support for start instance in draw_primitive_arrays().

From: Michael Müller <[email protected]>

Signed-off-by: Józef Kucia <[email protected]>
---

With minor modifications.

---
 dlls/wined3d/directx.c    |  5 +++++
 dlls/wined3d/drawprim.c   | 16 +++++++++++++++-
 dlls/wined3d/wined3d_gl.h |  1 +
 3 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/dlls/wined3d/directx.c b/dlls/wined3d/directx.c
index eae7505bf5c5..ef3a7fd67a6c 100644
--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -109,6 +109,7 @@ static const struct wined3d_extension_map gl_extension_map[] =
     {"GL_APPLE_ycbcr_422",                  APPLE_YCBCR_422               },
 
     /* ARB */
+    {"GL_ARB_base_instance",                ARB_BASE_INSTANCE             },
     {"GL_ARB_blend_func_extended",          ARB_BLEND_FUNC_EXTENDED       },
     {"GL_ARB_clear_buffer_object",          ARB_CLEAR_BUFFER_OBJECT       },
     {"GL_ARB_clear_texture",                ARB_CLEAR_TEXTURE             },
@@ -2686,6 +2687,9 @@ static void load_gl_funcs(struct wined3d_gl_info *gl_info)
     /* GL_APPLE_flush_buffer_range */
     USE_GL_FUNC(glBufferParameteriAPPLE)
     USE_GL_FUNC(glFlushMappedBufferRangeAPPLE)
+    /* GL_ARB_base_instance */
+    USE_GL_FUNC(glDrawArraysInstancedBaseInstance)
+    USE_GL_FUNC(glDrawElementsInstancedBaseVertexBaseInstance)
     /* GL_ARB_blend_func_extended */
     USE_GL_FUNC(glBindFragDataLocationIndexed)
     USE_GL_FUNC(glGetFragDataIndex)
@@ -3881,6 +3885,7 @@ static BOOL wined3d_adapter_init_gl_caps(struct wined3d_adapter *adapter,
         {ARB_ES2_COMPATIBILITY,            MAKEDWORD_VERSION(4, 1)},
         {ARB_VIEWPORT_ARRAY,               MAKEDWORD_VERSION(4, 1)},
 
+        {ARB_BASE_INSTANCE,                MAKEDWORD_VERSION(4, 2)},
         {ARB_CONSERVATIVE_DEPTH,           MAKEDWORD_VERSION(4, 2)},
         {ARB_INTERNALFORMAT_QUERY,         MAKEDWORD_VERSION(4, 2)},
         {ARB_MAP_BUFFER_ALIGNMENT,         MAKEDWORD_VERSION(4, 2)},
diff --git a/dlls/wined3d/drawprim.c b/dlls/wined3d/drawprim.c
index 67fca6299f2a..a7ca74897c7f 100644
--- a/dlls/wined3d/drawprim.c
+++ b/dlls/wined3d/drawprim.c
@@ -69,18 +69,32 @@ static void draw_primitive_arrays(struct wined3d_context *context, const struct
         return;
     }
 
-    if (start_instance)
+    if (start_instance && !(gl_info->supported[ARB_BASE_INSTANCE] && gl_info->supported[ARB_INSTANCED_ARRAYS]))
         FIXME("Start instance (%u) not supported.\n", start_instance);
 
     if (gl_info->supported[ARB_INSTANCED_ARRAYS])
     {
         if (!idx_size)
         {
+            if (gl_info->supported[ARB_BASE_INSTANCE])
+            {
+                GL_EXTCALL(glDrawArraysInstancedBaseInstance(state->gl_primitive_type, start_idx, count, instance_count, start_instance));
+                checkGLcall("glDrawArraysInstancedBaseInstance");
+                return;
+            }
+
             GL_EXTCALL(glDrawArraysInstanced(state->gl_primitive_type, start_idx, count, instance_count));
             checkGLcall("glDrawArraysInstanced");
             return;
         }
 
+        if (gl_info->supported[ARB_BASE_INSTANCE])
+        {
+            GL_EXTCALL(glDrawElementsInstancedBaseVertexBaseInstance(state->gl_primitive_type, count, idx_type,
+                        (const char *)idx_data + (idx_size * start_idx), instance_count, base_vertex_idx, start_instance));
+            checkGLcall("glDrawElementsInstancedBaseVertexBaseInstance");
+            return;
+        }
         if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
         {
             GL_EXTCALL(glDrawElementsInstancedBaseVertex(state->gl_primitive_type, count, idx_type,
diff --git a/dlls/wined3d/wined3d_gl.h b/dlls/wined3d/wined3d_gl.h
index 47f3770cb805..f676b2f457e4 100644
--- a/dlls/wined3d/wined3d_gl.h
+++ b/dlls/wined3d/wined3d_gl.h
@@ -42,6 +42,7 @@ enum wined3d_gl_extension
     APPLE_FLUSH_BUFFER_RANGE,
     APPLE_YCBCR_422,
     /* ARB */
+    ARB_BASE_INSTANCE,
     ARB_BLEND_FUNC_EXTENDED,
     ARB_CLEAR_BUFFER_OBJECT,
     ARB_CLEAR_TEXTURE,
-- 
2.13.6