X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Fmain%2Fpolygon.c;h=60af88f9857ca831da6b3beffc74acf73221b673;hb=34953f8907fddd0d2b27d276580a1d3223047987;hp=e3b90739d03992c9f0aba0f3f9eb15a665f8289f;hpb=83321009dede4dc70aae14c4e5ef48973208f931;p=mesa.git

diff --git a/src/mesa/main/polygon.c b/src/mesa/main/polygon.c
index e3b90739d03..60af88f9857 100644
--- a/src/mesa/main/polygon.c
+++ b/src/mesa/main/polygon.c
@@ -56,7 +56,7 @@ _mesa_CullFace( GLenum mode )
    GET_CURRENT_CONTEXT(ctx);
 
    if (MESA_VERBOSE&VERBOSE_API)
-      _mesa_debug(ctx, "glCullFace %s\n", _mesa_lookup_enum_by_nr(mode));
+      _mesa_debug(ctx, "glCullFace %s\n", _mesa_enum_to_string(mode));
 
    if (mode!=GL_FRONT && mode!=GL_BACK && mode!=GL_FRONT_AND_BACK) {
       _mesa_error( ctx, GL_INVALID_ENUM, "glCullFace" );
@@ -91,16 +91,16 @@ _mesa_FrontFace( GLenum mode )
    GET_CURRENT_CONTEXT(ctx);
 
    if (MESA_VERBOSE&VERBOSE_API)
-      _mesa_debug(ctx, "glFrontFace %s\n", _mesa_lookup_enum_by_nr(mode));
+      _mesa_debug(ctx, "glFrontFace %s\n", _mesa_enum_to_string(mode));
+
+   if (ctx->Polygon.FrontFace == mode)
+      return;
 
    if (mode!=GL_CW && mode!=GL_CCW) {
       _mesa_error( ctx, GL_INVALID_ENUM, "glFrontFace" );
       return;
    }
 
-   if (ctx->Polygon.FrontFace == mode)
-      return;
-
    FLUSH_VERTICES(ctx, _NEW_POLYGON);
    ctx->Polygon.FrontFace = mode;
 
@@ -128,8 +128,8 @@ _mesa_PolygonMode( GLenum face, GLenum mode )
 
    if (MESA_VERBOSE&VERBOSE_API)
       _mesa_debug(ctx, "glPolygonMode %s %s\n",
-                  _mesa_lookup_enum_by_nr(face),
-                  _mesa_lookup_enum_by_nr(mode));
+                  _mesa_enum_to_string(face),
+                  _mesa_enum_to_string(mode));
 
    if (mode!=GL_POINT && mode!=GL_LINE && mode!=GL_FILL) {
       _mesa_error( ctx, GL_INVALID_ENUM, "glPolygonMode(mode)" );
@@ -235,25 +235,33 @@ _mesa_GetPolygonStipple( GLubyte *dest )
    _mesa_GetnPolygonStippleARB(INT_MAX, dest);
 }
 
-
-void GLAPIENTRY
-_mesa_PolygonOffset( GLfloat factor, GLfloat units )
+void
+_mesa_polygon_offset_clamp(struct gl_context *ctx,
+                           GLfloat factor, GLfloat units, GLfloat clamp)
 {
-   GET_CURRENT_CONTEXT(ctx);
-
-   if (MESA_VERBOSE&VERBOSE_API)
-      _mesa_debug(ctx, "glPolygonOffset %f %f\n", factor, units);
-
    if (ctx->Polygon.OffsetFactor == factor &&
-       ctx->Polygon.OffsetUnits == units)
+       ctx->Polygon.OffsetUnits == units &&
+       ctx->Polygon.OffsetClamp == clamp)
       return;
 
    FLUSH_VERTICES(ctx, _NEW_POLYGON);
    ctx->Polygon.OffsetFactor = factor;
    ctx->Polygon.OffsetUnits = units;
+   ctx->Polygon.OffsetClamp = clamp;
 
    if (ctx->Driver.PolygonOffset)
-      ctx->Driver.PolygonOffset( ctx, factor, units );
+      ctx->Driver.PolygonOffset( ctx, factor, units, clamp );
+}
+
+void GLAPIENTRY
+_mesa_PolygonOffset( GLfloat factor, GLfloat units )
+{
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (MESA_VERBOSE&VERBOSE_API)
+      _mesa_debug(ctx, "glPolygonOffset %f %f\n", factor, units);
+
+   _mesa_polygon_offset_clamp(ctx, factor, units, 0.0);
 }
 
 
@@ -268,7 +276,18 @@ _mesa_PolygonOffsetEXT( GLfloat factor, GLfloat bias )
 void GLAPIENTRY
 _mesa_PolygonOffsetClampEXT( GLfloat factor, GLfloat units, GLfloat clamp )
 {
+   GET_CURRENT_CONTEXT(ctx);
+
+   if (!ctx->Extensions.EXT_polygon_offset_clamp) {
+      _mesa_error(ctx, GL_INVALID_OPERATION,
+                  "unsupported function (glPolygonOffsetClampEXT) called");
+      return;
+   }
+
+   if (MESA_VERBOSE&VERBOSE_API)
+      _mesa_debug(ctx, "glPolygonOffsetClampEXT %f %f %f\n", factor, units, clamp);
 
+   _mesa_polygon_offset_clamp(ctx, factor, units, clamp);
 }
 
 
@@ -298,6 +317,7 @@ void _mesa_init_polygon( struct gl_context * ctx )
    ctx->Polygon.StippleFlag = GL_FALSE;
    ctx->Polygon.OffsetFactor = 0.0F;
    ctx->Polygon.OffsetUnits = 0.0F;
+   ctx->Polygon.OffsetClamp = 0.0F;
    ctx->Polygon.OffsetPoint = GL_FALSE;
    ctx->Polygon.OffsetLine = GL_FALSE;
    ctx->Polygon.OffsetFill = GL_FALSE;