mesa: Force GL_SGIS_generate_mipmap to always be enabled

As per discussions at XDS.

3 files changed, 9 insertions, 29 deletions

diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
index fe7eade3eb..0ca068c2db 100644
--- a/src/mesa/main/extensions.c
+++ b/src/mesa/main/extensions.c
@@ -206,7 +206,7 @@ static const struct {
    { OFF, "GL_NV_vertex_program1_1",           F(NV_vertex_program1_1) },
    { ON,  "GL_OES_read_format",                F(OES_read_format) },
    { OFF, "GL_SGI_texture_color_table",        F(SGI_texture_color_table) },
-   { OFF, "GL_SGIS_generate_mipmap",           F(SGIS_generate_mipmap) },
+   { ON,  "GL_SGIS_generate_mipmap",           F(SGIS_generate_mipmap) },
    { OFF, "GL_SGIS_texture_border_clamp",      F(ARB_texture_border_clamp) },
    { ON,  "GL_SGIS_texture_edge_clamp",        F(SGIS_texture_edge_clamp) },
    { ON,  "GL_SGIS_texture_lod",               F(SGIS_texture_lod) },
@@ -364,7 +364,7 @@ _mesa_enable_sw_extensions(GLcontext *ctx)
    ctx->Extensions.NV_fragment_program_option = GL_TRUE;
 #endif
    ctx->Extensions.SGI_texture_color_table = GL_TRUE;
-   ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
+   /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/
    ctx->Extensions.SGIS_texture_edge_clamp = GL_TRUE;
 #if FEATURE_ARB_vertex_program || FEATURE_ARB_fragment_program
    ctx->Extensions.EXT_gpu_program_parameters = GL_TRUE;
@@ -437,7 +437,7 @@ _mesa_enable_1_4_extensions(GLcontext *ctx)
    ctx->Extensions.EXT_secondary_color = GL_TRUE;
    ctx->Extensions.EXT_stencil_wrap = GL_TRUE;
    ctx->Extensions.EXT_texture_lod_bias = GL_TRUE;
-   ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;
+   /*ctx->Extensions.SGIS_generate_mipmap = GL_TRUE;*/
 }
 
 
diff --git a/src/mesa/main/hint.c b/src/mesa/main/hint.c
index e2d4129a38..8902ae3776 100644
--- a/src/mesa/main/hint.c
+++ b/src/mesa/main/hint.c
@@ -97,10 +97,6 @@ _mesa_Hint( GLenum target, GLenum mode )
 
       /* GL_SGIS_generate_mipmap */
       case GL_GENERATE_MIPMAP_HINT_SGIS:
-         if (!ctx->Extensions.SGIS_generate_mipmap) {
-            _mesa_error(ctx, GL_INVALID_ENUM, "glHint(target)");
-	    return;
-         }
          if (ctx->Hint.GenerateMipmap == mode)
             return;
 	 FLUSH_VERTICES(ctx, _NEW_HINT);
diff --git a/src/mesa/main/texparam.c b/src/mesa/main/texparam.c
index 745a0aeec9..187049c070 100644
--- a/src/mesa/main/texparam.c
+++ b/src/mesa/main/texparam.c
@@ -291,17 +291,10 @@ set_tex_parameteri(GLcontext *ctx,
       return GL_TRUE;
 
    case GL_GENERATE_MIPMAP_SGIS:
-      if (ctx->Extensions.SGIS_generate_mipmap) {
-         if (texObj->GenerateMipmap != params[0]) {
-            flush(ctx, texObj);
-            texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
-            return GL_TRUE;
-         }
-         return GL_FALSE;
-      }
-      else {
-         _mesa_error(ctx, GL_INVALID_ENUM,
-                     "glTexParameter(pname=GL_GENERATE_MIPMAP_SGIS)");
+      if (texObj->GenerateMipmap != params[0]) {
+	 flush(ctx, texObj);
+	 texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
+	 return GL_TRUE;
       }
       return GL_FALSE;
 
@@ -1126,11 +1119,7 @@ _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
 	    error = GL_TRUE;
          break;
       case GL_GENERATE_MIPMAP_SGIS:
-         if (ctx->Extensions.SGIS_generate_mipmap) {
-            *params = (GLfloat) obj->GenerateMipmap;
-         }
-	 else 
-	    error = GL_TRUE;
+	 *params = (GLfloat) obj->GenerateMipmap;
          break;
       case GL_TEXTURE_COMPARE_MODE_ARB:
          if (ctx->Extensions.ARB_shadow) {
@@ -1291,12 +1280,7 @@ _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
          }
          break;
       case GL_GENERATE_MIPMAP_SGIS:
-         if (ctx->Extensions.SGIS_generate_mipmap) {
-            *params = (GLint) obj->GenerateMipmap;
-         }
-         else {
-            error = GL_TRUE;
-         }
+	 *params = (GLint) obj->GenerateMipmap;
          break;
       case GL_TEXTURE_COMPARE_MODE_ARB:
          if (ctx->Extensions.ARB_shadow) {