| // Copyright 2009 Google Inc. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| // This is branched from AOSP's frameworks/base/opengl/include/ETC1/etc1.h |
| // |
| // It has been modified to implement Chromium's ETC1 API. The decoding path |
| // has been removed as we do not require it. |
| |
| #ifndef THIRD_PARTY_ANDROID_OPENGL_ETC1_ETC1_H_ |
| #define THIRD_PARTY_ANDROID_OPENGL_ETC1_ETC1_H_ |
| |
| // Return the size of the encoded image data. |
| |
| unsigned int etc1_get_encoded_data_size(unsigned int width, unsigned int height); |
| |
| // Encode an entire image. |
| // pIn - pointer to the image data. Formatted such that |
| // pixel (x,y) is at pIn + pixelSize * x + stride * y; |
| // pOut - pointer to encoded data. Must be large enough to store entire encoded image. |
| // pixelSize can be 2 or 3. 2 is an GL_UNSIGNED_SHORT_5_6_5 image, 3 is a GL_BYTE RGB image. |
| // returns non-zero if there is an error. |
| |
| bool etc1_encode_image(const unsigned char* pIn, unsigned int width, unsigned int height, |
| unsigned int pixelSize, unsigned int stride, unsigned char* pOut, unsigned int outWidth, |
| unsigned int outHeight); |
| |
| #endif // THIRD_PARTY_ANDROID_OPENGL_ETC1_ETC1_H_ |
