wined3d: Only install emulation wrappers when required.

dlls/wined3d/arb_program_shader.c

@@ -5871,6 +5871,11 @@ static void arbfp_get_caps(const struct wined3d_gl_info *gl_info, struct fragmen
     caps->MaxSimultaneousTextures = min(gl_info->limits.fragment_samplers, 8);
 }
 
+static DWORD arbfp_get_emul_mask(const struct wined3d_gl_info *gl_info)
+{
+    return GL_EXT_EMUL_ARB_MULTITEXTURE | GL_EXT_EMUL_EXT_FOG_COORD;
+}
+
 static void state_texfactor_arbfp(struct wined3d_context *context,
         const struct wined3d_state *state, DWORD state_id)
 {
@@ -6871,6 +6876,7 @@ static void arbfp_free_context_data(struct wined3d_context *context)
 const struct fragment_pipeline arbfp_fragment_pipeline = {
     arbfp_enable,
     arbfp_get_caps,
+    arbfp_get_emul_mask,
     arbfp_alloc,
     arbfp_free,
     arbfp_alloc_context_data,

dlls/wined3d/ati_fragment_shader.c

@@ -1310,6 +1310,11 @@ static void atifs_get_caps(const struct wined3d_gl_info *gl_info, struct fragmen
     caps->MaxSimultaneousTextures = 6;
 }
 
+static DWORD atifs_get_emul_mask(const struct wined3d_gl_info *gl_info)
+{
+    return GL_EXT_EMUL_ARB_MULTITEXTURE | GL_EXT_EMUL_EXT_FOG_COORD;
+}
+
 static void *atifs_alloc(const struct wined3d_shader_backend_ops *shader_backend, void *shader_priv)
 {
     struct atifs_private_data *priv;
@@ -1386,6 +1391,7 @@ static void atifs_free_context_data(struct wined3d_context *context)
 const struct fragment_pipeline atifs_fragment_pipeline = {
     atifs_enable,
     atifs_get_caps,
+    atifs_get_emul_mask,
     atifs_alloc,
     atifs_free,
     atifs_alloc_context_data,

dlls/wined3d/directx.c

@@ -3434,7 +3434,7 @@ static BOOL wined3d_adapter_init_gl_caps(struct wined3d_adapter *adapter)
     const char *WGL_Extensions = NULL;
     enum wined3d_gl_vendor gl_vendor;
     enum wined3d_pci_device device;
-    DWORD gl_version;
+    DWORD gl_version, gl_ext_emul_mask;
     HDC hdc;
     unsigned int i, j;
     GLint context_profile = 0;
@@ -3805,8 +3805,12 @@ static BOOL wined3d_adapter_init_gl_caps(struct wined3d_adapter *adapter)
 
     fixup_extensions(gl_info, gl_renderer_str, gl_vendor, card_vendor, device);
     init_driver_info(driver_info, card_vendor, device);
-    install_gl_compat_wrapper(gl_info, ARB_MULTITEXTURE);
-    install_gl_compat_wrapper(gl_info, EXT_FOG_COORD);
+    gl_ext_emul_mask = adapter->vertex_pipe->vp_get_emul_mask(gl_info)
+            | adapter->fragment_pipe->get_emul_mask(gl_info);
+    if (gl_ext_emul_mask & GL_EXT_EMUL_ARB_MULTITEXTURE)
+        install_gl_compat_wrapper(gl_info, ARB_MULTITEXTURE);
+    if (gl_ext_emul_mask & GL_EXT_EMUL_EXT_FOG_COORD)
+        install_gl_compat_wrapper(gl_info, EXT_FOG_COORD);
 
     return TRUE;
 }

dlls/wined3d/glsl_shader.c

@@ -7742,6 +7742,13 @@ static void glsl_vertex_pipe_vp_get_caps(const struct wined3d_gl_info *gl_info,
     caps->raster_caps = WINED3DPRASTERCAPS_FOGRANGE;
 }
 
+static DWORD glsl_vertex_pipe_vp_get_emul_mask(const struct wined3d_gl_info *gl_info)
+{
+    if (gl_info->supported[WINED3D_GL_LEGACY_CONTEXT])
+        return GL_EXT_EMUL_ARB_MULTITEXTURE;
+    return 0;
+}
+
 static void *glsl_vertex_pipe_vp_alloc(const struct wined3d_shader_backend_ops *shader_backend, void *shader_priv)
 {
     struct shader_glsl_priv *priv;
@@ -8121,6 +8128,7 @@ const struct wined3d_vertex_pipe_ops glsl_vertex_pipe =
 {
     glsl_vertex_pipe_vp_enable,
     glsl_vertex_pipe_vp_get_caps,
+    glsl_vertex_pipe_vp_get_emul_mask,
     glsl_vertex_pipe_vp_alloc,
     glsl_vertex_pipe_vp_free,
     glsl_vertex_pipe_vp_states,
@@ -8167,6 +8175,13 @@ static void glsl_fragment_pipe_get_caps(const struct wined3d_gl_info *gl_info, s
     caps->MaxSimultaneousTextures = min(gl_info->limits.fragment_samplers, 8);
 }
 
+static DWORD glsl_fragment_pipe_get_emul_mask(const struct wined3d_gl_info *gl_info)
+{
+    if (gl_info->supported[WINED3D_GL_LEGACY_CONTEXT])
+        return GL_EXT_EMUL_ARB_MULTITEXTURE;
+    return 0;
+}
+
 static void *glsl_fragment_pipe_alloc(const struct wined3d_shader_backend_ops *shader_backend, void *shader_priv)
 {
     struct shader_glsl_priv *priv;
@@ -8446,6 +8461,7 @@ const struct fragment_pipeline glsl_fragment_pipe =
 {
     glsl_fragment_pipe_enable,
     glsl_fragment_pipe_get_caps,
+    glsl_fragment_pipe_get_emul_mask,
     glsl_fragment_pipe_alloc,
     glsl_fragment_pipe_free,
     glsl_fragment_pipe_alloc_context_data,

dlls/wined3d/nvidia_texture_shader.c

@@ -738,6 +738,11 @@ static void nvrc_fragment_get_caps(const struct wined3d_gl_info *gl_info, struct
     caps->MaxSimultaneousTextures = gl_info->limits.textures;
 }
 
+static DWORD nvrc_fragment_get_emul_mask(const struct wined3d_gl_info *gl_info)
+{
+    return GL_EXT_EMUL_ARB_MULTITEXTURE | GL_EXT_EMUL_EXT_FOG_COORD;
+}
+
 static void *nvrc_fragment_alloc(const struct wined3d_shader_backend_ops *shader_backend, void *shader_priv)
 {
     return shader_priv;
@@ -924,6 +929,7 @@ static void nvrc_context_free(struct wined3d_context *context)
 const struct fragment_pipeline nvts_fragment_pipeline = {
     nvts_enable,
     nvrc_fragment_get_caps,
+    nvrc_fragment_get_emul_mask,
     nvrc_fragment_alloc,
     nvrc_fragment_free,
     nvrc_context_alloc,
@@ -935,6 +941,7 @@ const struct fragment_pipeline nvts_fragment_pipeline = {
 const struct fragment_pipeline nvrc_fragment_pipeline = {
     nvrc_enable,
     nvrc_fragment_get_caps,
+    nvrc_fragment_get_emul_mask,
     nvrc_fragment_alloc,
     nvrc_fragment_free,
     nvrc_context_alloc,

dlls/wined3d/state.c

@@ -5582,10 +5582,16 @@ static void vp_ffp_get_caps(const struct wined3d_gl_info *gl_info, struct wined3
         caps->raster_caps |= WINED3DPRASTERCAPS_FOGRANGE;
 }
 
+static DWORD vp_ffp_get_emul_mask(const struct wined3d_gl_info *gl_info)
+{
+    return GL_EXT_EMUL_ARB_MULTITEXTURE | GL_EXT_EMUL_EXT_FOG_COORD;
+}
+
 const struct wined3d_vertex_pipe_ops ffp_vertex_pipe =
 {
     ffp_enable,
     vp_ffp_get_caps,
+    vp_ffp_get_emul_mask,
     ffp_alloc,
     ffp_free,
     vp_ffp_states,
@@ -5632,6 +5638,11 @@ static void ffp_fragment_get_caps(const struct wined3d_gl_info *gl_info, struct
     caps->MaxSimultaneousTextures = gl_info->limits.textures;
 }
 
+static DWORD ffp_fragment_get_emul_mask(const struct wined3d_gl_info *gl_info)
+{
+    return GL_EXT_EMUL_ARB_MULTITEXTURE | GL_EXT_EMUL_EXT_FOG_COORD;
+}
+
 static BOOL ffp_color_fixup_supported(struct color_fixup_desc fixup)
 {
     if (TRACE_ON(d3d))
@@ -5663,6 +5674,7 @@ static void ffp_none_context_free(struct wined3d_context *context)
 const struct fragment_pipeline ffp_fragment_pipeline = {
     ffp_enable,
     ffp_fragment_get_caps,
+    ffp_fragment_get_emul_mask,
     ffp_alloc,
     ffp_free,
     ffp_none_context_alloc,
@@ -5685,10 +5697,16 @@ static void vp_none_get_caps(const struct wined3d_gl_info *gl_info, struct wined
     memset(caps, 0, sizeof(*caps));
 }
 
+static DWORD vp_none_get_emul_mask(const struct wined3d_gl_info *gl_info)
+{
+    return 0;
+}
+
 const struct wined3d_vertex_pipe_ops none_vertex_pipe =
 {
     none_enable,
     vp_none_get_caps,
+    vp_none_get_emul_mask,
     none_alloc,
     none_free,
     NULL,
@@ -5699,6 +5717,11 @@ static void fp_none_get_caps(const struct wined3d_gl_info *gl_info, struct fragm
     memset(caps, 0, sizeof(*caps));
 }
 
+static DWORD fp_none_get_emul_mask(const struct wined3d_gl_info *gl_info)
+{
+    return 0;
+}
+
 static BOOL fp_none_color_fixup_supported(struct color_fixup_desc fixup)
 {
     return is_identity_fixup(fixup);
@@ -5708,6 +5731,7 @@ const struct fragment_pipeline none_fragment_pipe =
 {
     none_enable,
     fp_none_get_caps,
+    fp_none_get_emul_mask,
     none_alloc,
     none_free,
     ffp_none_context_alloc,

dlls/wined3d/wined3d_private.h

@@ -1287,10 +1287,14 @@ struct fragment_caps
     DWORD MaxSimultaneousTextures;
 };
 
+#define GL_EXT_EMUL_ARB_MULTITEXTURE 0x00000001
+#define GL_EXT_EMUL_EXT_FOG_COORD    0x00000002
+
 struct fragment_pipeline
 {
     void (*enable_extension)(const struct wined3d_gl_info *gl_info, BOOL enable);
     void (*get_caps)(const struct wined3d_gl_info *gl_info, struct fragment_caps *caps);
+    DWORD (*get_emul_mask)(const struct wined3d_gl_info *gl_info);
     void *(*alloc_private)(const struct wined3d_shader_backend_ops *shader_backend, void *shader_priv);
     void (*free_private)(struct wined3d_device *device);
     BOOL (*allocate_context_data)(struct wined3d_context *context);
@@ -1316,6 +1320,7 @@ struct wined3d_vertex_pipe_ops
 {
     void (*vp_enable)(const struct wined3d_gl_info *gl_info, BOOL enable);
     void (*vp_get_caps)(const struct wined3d_gl_info *gl_info, struct wined3d_vertex_caps *caps);
+    DWORD (*vp_get_emul_mask)(const struct wined3d_gl_info *gl_info);
     void *(*vp_alloc)(const struct wined3d_shader_backend_ops *shader_backend, void *shader_priv);
     void (*vp_free)(struct wined3d_device *device);
     const struct StateEntryTemplate *vp_states;