Adding Crunch at r319.

third_party/crunch/crnlib/crn_texture_comp.h

@@ -0,0 +1,33 @@
+// File: crn_texture_comp.h
+// See Copyright Notice and license at the end of inc/crnlib.h
+#pragma once
+
+#include "../inc/crnlib.h"
+
+namespace crnlib
+{
+   class mipmapped_texture;
+
+   class itexture_comp
+   {
+      CRNLIB_NO_COPY_OR_ASSIGNMENT_OP(itexture_comp);
+
+   public:
+      itexture_comp() { }
+      virtual ~itexture_comp() { }
+
+      virtual const char *get_ext() const = 0;
+
+      virtual bool compress_init(const crn_comp_params& params) = 0;
+      virtual bool compress_pass(const crn_comp_params& params, float *pEffective_bitrate) = 0;
+      virtual void compress_deinit() = 0;
+
+      virtual const crnlib::vector<uint8>& get_comp_data() const = 0;
+      virtual       crnlib::vector<uint8>& get_comp_data() = 0;
+   };
+
+   bool create_compressed_texture(const crn_comp_params &params, crnlib::vector<uint8> &comp_data, uint32 *pActual_quality_level, float *pActual_bitrate);
+   bool create_texture_mipmaps(mipmapped_texture &work_tex, const crn_comp_params &params, const crn_mipmap_params &mipmap_params, bool generate_mipmaps);
+   bool create_compressed_texture(const crn_comp_params &params, const crn_mipmap_params &mipmap_params, crnlib::vector<uint8> &comp_data, uint32 *pActual_quality_level, float *pActual_bitrate);
+
+} // namespace crnlib