diff options
Diffstat (limited to 'mesalib/src/mesa/main/polygon.c')
-rw-r--r-- | mesalib/src/mesa/main/polygon.c | 46 |
1 files changed, 36 insertions, 10 deletions
diff --git a/mesalib/src/mesa/main/polygon.c b/mesalib/src/mesa/main/polygon.c index cdaa24483..a1f0aa02d 100644 --- a/mesalib/src/mesa/main/polygon.c +++ b/mesalib/src/mesa/main/polygon.c @@ -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); } @@ -265,6 +273,23 @@ _mesa_PolygonOffsetEXT( GLfloat factor, GLfloat bias ) _mesa_PolygonOffset(factor, bias * ctx->DrawBuffer->_DepthMaxF ); } +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); +} + /**********************************************************************/ @@ -292,6 +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; |