mesa: additional constant/limit assertions

diff --git a/src/mesa/main/context.c b/src/mesa/main/context.c
index 2165af2882cc4749fd54d94246eb0015b541d540..c292d1fea5e846f46cf40b4fcfcd8977a02d95c7 100644 (file)
--- a/src/mesa/main/context.c
+++ b/src/mesa/main/context.c
@@ -593,17 +593,22 @@ check_context_limits(GLcontext *ctx)
    assert(MAX_NV_VERTEX_PROGRAM_OUTPUTS <= VERT_RESULT_MAX);
 
    /* Texture unit checks */
+   assert(ctx->Const.MaxTextureImageUnits > 0);
    assert(ctx->Const.MaxTextureImageUnits <= MAX_TEXTURE_IMAGE_UNITS);
+   assert(ctx->Const.MaxTextureCoordUnits > 0);
    assert(ctx->Const.MaxTextureCoordUnits <= MAX_TEXTURE_COORD_UNITS);
+   assert(ctx->Const.MaxTextureUnits > 0);
    assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_IMAGE_UNITS);
    assert(ctx->Const.MaxTextureUnits <= MAX_TEXTURE_COORD_UNITS);
    assert(ctx->Const.MaxTextureUnits == MIN2(ctx->Const.MaxTextureImageUnits,
                                              ctx->Const.MaxTextureCoordUnits));
+   assert(ctx->Const.MaxCombinedTextureImageUnits > 0);
    assert(ctx->Const.MaxCombinedTextureImageUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS);
    assert(ctx->Const.MaxTextureCoordUnits <= MAX_COMBINED_TEXTURE_IMAGE_UNITS);
    /* number of coord units cannot be greater than number of image units */
    assert(ctx->Const.MaxTextureCoordUnits <= ctx->Const.MaxTextureImageUnits);
 
+
    /* Texture size checks */
    assert(ctx->Const.MaxTextureLevels <= MAX_TEXTURE_LEVELS);
    assert(ctx->Const.Max3DTextureLevels <= MAX_3D_TEXTURE_LEVELS);