wined3d: Add GL_NV_point_sprite extension.

dlls/wined3d/context.c

@@ -1484,8 +1484,19 @@ struct wined3d_context *context_create(IWineD3DSwapChainImpl *swapchain, IWineD3
 
     if (gl_info->supported[WINED3D_GL_VERSION_2_0])
     {
-        glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT);
-        checkGLcall("glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT)");
+        /* Windows doesn't support to query the glPointParameteri function pointer, so use the
+         * NV_POINT_SPRITE extension.
+         */
+        if (glPointParameteri)
+        {
+            glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT);
+            checkGLcall("glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT)");
+        }
+        else if (gl_info->supported[NV_POINT_SPRITE])
+        {
+            GL_EXTCALL(glPointParameteriNV(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT));
+            checkGLcall("glPointParameteriNV(GL_POINT_SPRITE_COORD_ORIGIN, GL_UPPER_LEFT)");
+        }
     }
 
     if (gl_info->supported[ARB_PROVOKING_VERTEX])
@@ -1943,12 +1954,25 @@ void context_set_draw_buffer(struct wined3d_context *context, GLenum buffer)
 static inline void context_set_render_offscreen(struct wined3d_context *context, const struct StateEntry *StateTable,
         BOOL offscreen)
 {
+    const struct wined3d_gl_info *gl_info = context->gl_info;
+
     if (context->render_offscreen == offscreen) return;
 
-    if (context->gl_info->supported[WINED3D_GL_VERSION_2_0])
+    if (gl_info->supported[WINED3D_GL_VERSION_2_0])
     {
-        glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, offscreen ? GL_LOWER_LEFT : GL_UPPER_LEFT);
-        checkGLcall("glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, ...)");
+        /* Windows doesn't support to query the glPointParameteri function pointer, so use the
+         * NV_POINT_SPRITE extension.
+         */
+        if (glPointParameteri)
+        {
+            glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, offscreen ? GL_LOWER_LEFT : GL_UPPER_LEFT);
+            checkGLcall("glPointParameteri(GL_POINT_SPRITE_COORD_ORIGIN, ...)");
+        }
+        else if (gl_info->supported[NV_POINT_SPRITE])
+        {
+            GL_EXTCALL(glPointParameteriNV(GL_POINT_SPRITE_COORD_ORIGIN, offscreen ? GL_LOWER_LEFT : GL_UPPER_LEFT));
+            checkGLcall("glPointParameteriNV(GL_POINT_SPRITE_COORD_ORIGIN, ...)");
+        }
     }
 
     Context_MarkStateDirty(context, STATE_TRANSFORM(WINED3DTS_PROJECTION), StateTable);

dlls/wined3d/directx.c

@@ -138,6 +138,7 @@ static const struct {
     {"GL_NV_fragment_program_option",       NV_FRAGMENT_PROGRAM_OPTION,     0                           },
     {"GL_NV_half_float",                    NV_HALF_FLOAT,                  0                           },
     {"GL_NV_light_max_exponent",            NV_LIGHT_MAX_EXPONENT,          0                           },
+    {"GL_NV_point_sprite",                  NV_POINT_SPRITE,                0                           },
     {"GL_NV_register_combiners",            NV_REGISTER_COMBINERS,          0                           },
     {"GL_NV_register_combiners2",           NV_REGISTER_COMBINERS2,         0                           },
     {"GL_NV_texgen_reflection",             NV_TEXGEN_REFLECTION,           0                           },

dlls/wined3d/drawprim.c

@@ -644,7 +644,9 @@ void drawPrimitive(IWineD3DDevice *iface, UINT index_count, UINT StartIdx, UINT
         }
     }
 
-    if (!context->gl_info->supported[WINED3D_GL_VERSION_2_0] && context->render_offscreen
+    if ((!context->gl_info->supported[WINED3D_GL_VERSION_2_0]
+            || (!glPointParameteri && !context->gl_info->supported[NV_POINT_SPRITE]))
+            && context->render_offscreen
             && This->stateBlock->renderState[WINED3DRS_POINTSPRITEENABLE]
             && This->stateBlock->gl_primitive_type == GL_POINTS)
     {

dlls/wined3d/wined3d_gl.h

@@ -1818,6 +1818,7 @@ typedef enum wined3d_gl_extension
     NV_FRAGMENT_PROGRAM_OPTION,
     NV_HALF_FLOAT,
     NV_LIGHT_MAX_EXPONENT,
+    NV_POINT_SPRITE,
     NV_REGISTER_COMBINERS,
     NV_REGISTER_COMBINERS2,
     NV_TEXGEN_REFLECTION,
@@ -3482,6 +3483,16 @@ typedef void (WINE_GLAPI *PGLFNVERTEXATTRIBS4HVNVPROC)(GLuint index, GLsizei n,
 #define GL_MAX_SPOT_EXPONENT_NV                             0x8505
 #endif
 
+/* GL_NV_point_sprite */
+#ifndef GL_NV_point_sprite
+#define GL_NV_point_sprite 1
+#define GL_NV_POINT_SPRITE_NV                               0x8861
+#define GL_NV_COORD_REPLACE_NV                              0x8862
+#define GL_NV_POINT_SPRITE_R_MODE_NV                        0x8863
+#endif
+typedef void (WINE_GLAPI *PGLFNPOINTPARAMETERIVNVPROC)(GLenum pname, const GLint *params);
+typedef void (WINE_GLAPI *PGLFNPOINTPARAMETERINVPROC)(GLenum pname, GLint param);
+
 /* GL_NV_register_combiners */
 #ifndef GL_NV_register_combiners
 #define GL_NV_register_combiners 1
@@ -4477,6 +4488,11 @@ typedef BOOL (WINAPI *WINED3D_PFNWGLSETPIXELFORMATWINE)(HDC hdc, int iPixelForma
             glVertexAttribs3hvNV,                       NV_HALF_FLOAT,                  NULL) \
     USE_GL_FUNC(PGLFNVERTEXATTRIBS4HVNVPROC, \
             glVertexAttribs4hvNV,                       NV_HALF_FLOAT,                  NULL) \
+    /* GL_NV_point_sprite */ \
+    USE_GL_FUNC(PGLFNPOINTPARAMETERIVNVPROC, \
+            glPointParameterivNV,                       NV_POINT_SPRITE,                NULL) \
+    USE_GL_FUNC(PGLFNPOINTPARAMETERINVPROC, \
+            glPointParameteriNV,                        NV_POINT_SPRITE,                NULL) \
     /* GL_NV_register_combiners */ \
     USE_GL_FUNC(PGLFNCOMBINERINPUTNVPROC, \
             glCombinerInputNV,                          NV_REGISTER_COMBINERS,          NULL) \