Use enum to track MipMapsStatus throughout Texture creation

Bug: skia:
Change-Id: I1de1105d74b45f7b02ff52e6b8333801d98ef1ce
Reviewed-on: https://skia-review.googlesource.com/58501
Commit-Queue: Greg Daniel <egdaniel@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/private/GrTypesPriv.h b/include/private/GrTypesPriv.h
index 04a0111744..bb3fe503c9 100644
--- a/include/private/GrTypesPriv.h
+++ b/include/private/GrTypesPriv.h
@@ -762,6 +762,15 @@ enum class GpuPathRenderers {
     kDefault           = kAll & ~kCoverageCounting,
 };
 
+/**
+ * Used to describe the current state of Mips on a GrTexture
+ */
+enum class  GrMipMapsStatus {
+    kNotAllocated, // Mips have not been allocated
+    kDirty,        // Mips are allocated but the full mip tree does not have valid data
+    kValid,        // All levels fully allocated and have valid data in them
+};
+
 GR_MAKE_BITFIELD_CLASS_OPS(GpuPathRenderers)
 
 #endif