Matteo Bruni : wined3d: Enable SM4 support in the GLSL shader backend when possible.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 5f2c6b3c8289bb71ad3baf62c66b56b776adb671
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=5f2c6b3c8289bb71ad3baf62c66b56b776adb671

Author: Matteo Bruni <mbruni at codeweavers.com>
Date:   Tue Oct 25 16:58:45 2011 +0200

wined3d: Enable SM4 support in the GLSL shader backend when possible.

---

 dlls/wined3d/directx.c     |    4 ++--
 dlls/wined3d/glsl_shader.c |    8 +++++++-
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/dlls/wined3d/directx.c b/dlls/wined3d/directx.c
index 5d6eef9..f6228eb 100644
--- a/dlls/wined3d/directx.c
+++ b/dlls/wined3d/directx.c
@@ -4750,7 +4750,7 @@ HRESULT CDECL wined3d_get_device_caps(const struct wined3d *wined3d, UINT adapte
      * are the same among all shader models. So to avoid code duplication set the shader version
      * specific, but otherwise constant caps here
      */
-    if (caps->VertexShaderVersion == 3)
+    if (caps->VertexShaderVersion >= 3)
     {
         /* Where possible set the caps based on OpenGL extensions and if they
          * aren't set (in case of software rendering) use the VS 3.0 from
@@ -4787,7 +4787,7 @@ HRESULT CDECL wined3d_get_device_caps(const struct wined3d *wined3d, UINT adapte
         caps->MaxVertexShader30InstructionSlots = 0;
     }
 
-    if (caps->PixelShaderVersion == 3)
+    if (caps->PixelShaderVersion >= 3)
     {
         /* Where possible set the caps based on OpenGL extensions and if they
          * aren't set (in case of software rendering) use the PS 3.0 from
diff --git a/dlls/wined3d/glsl_shader.c b/dlls/wined3d/glsl_shader.c
index 3092ce3..2c7cfe9 100644
--- a/dlls/wined3d/glsl_shader.c
+++ b/dlls/wined3d/glsl_shader.c
@@ -4913,9 +4913,15 @@ static void shader_glsl_context_destroyed(void *shader_priv, const struct wined3
 
 static void shader_glsl_get_caps(const struct wined3d_gl_info *gl_info, struct shader_caps *caps)
 {
+    if (gl_info->supported[EXT_GPU_SHADER4] && gl_info->supported[ARB_GEOMETRY_SHADER4]
+            && gl_info->glsl_version >= MAKEDWORD_VERSION(1, 50))
+    {
+        caps->VertexShaderVersion = 4;
+        caps->PixelShaderVersion = 4;
+    }
     /* ARB_shader_texture_lod or EXT_gpu_shader4 is required for the SM3
      * texldd and texldl instructions. */
-    if (gl_info->supported[ARB_SHADER_TEXTURE_LOD] || gl_info->supported[EXT_GPU_SHADER4])
+    else if (gl_info->supported[ARB_SHADER_TEXTURE_LOD] || gl_info->supported[EXT_GPU_SHADER4])
     {
         caps->VertexShaderVersion = 3;
         caps->PixelShaderVersion = 3;