| // Copyright 2019 Google LLC |
| // |
| // 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 |
| // |
| // https://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. |
| // ----------------------------------------------------------------------------- |
| // |
| // Image savers |
| |
| #include <cstdint> |
| #include <cstdio> |
| |
| #ifdef WP2_HAVE_PNG |
| #include <png.h> |
| #include <setjmp.h> // note: this must be included *after* png.h |
| #endif // WP2_HAVE_PNG |
| |
| #ifdef HAVE_WINCODEC_H |
| #ifdef __MINGW32__ |
| #define INITGUID // Without this GUIDs are declared extern and fail to link |
| #endif |
| #define CINTERFACE |
| #define COBJMACROS |
| #define _WIN32_IE 0x500 // Workaround bug in shlwapi.h when compiling C++ |
| // code with COBJMACROS. |
| #include <ole2.h> // CreateStreamOnHGlobal() |
| #include <shlwapi.h> |
| #include <windows.h> |
| #include <wincodec.h> |
| #endif // HAVE_WINCODEC_H |
| |
| #include "./image_enc.h" |
| #include "src/dsp/dsp.h" |
| #include "src/utils/utils.h" |
| #include "src/utils/vector.h" |
| |
| namespace WP2 { |
| |
| #ifdef HAVE_WINCODEC_H |
| |
| namespace { |
| |
| #define IFS(fn) \ |
| do { \ |
| if (SUCCEEDED(hr)) { \ |
| hr = (fn); \ |
| if (FAILED(hr)) fprintf(stderr, #fn " failed %08x\n", hr); \ |
| } \ |
| } while (0) |
| |
| #ifdef __cplusplus |
| #define MAKE_REFGUID(x) (x) |
| #else |
| #define MAKE_REFGUID(x) &(x) |
| #endif |
| |
| HRESULT CreateOutputStream(const char* file_path, bool write_to_mem, |
| bool overwrite, IStream** stream) { |
| HRESULT hr = S_OK; |
| if (write_to_mem) { |
| // Output to a memory buffer. This is freed when 'stream' is released. |
| IFS(CreateStreamOnHGlobal(nullptr, TRUE, stream)); |
| } else { |
| const DWORD create_mode = (overwrite ? STGM_CREATE : STGM_FAILIFTHERE); |
| IFS(SHCreateStreamOnFileA(file_path, STGM_WRITE | create_mode, stream)); |
| } |
| if (FAILED(hr)) { |
| fprintf(stderr, "Error opening output file %s (%08x)\n", file_path, hr); |
| } |
| return hr; |
| } |
| |
| HRESULT WriteUsingWIC(const char* file_path, bool use_stdout, bool overwrite, |
| REFGUID container_guid, uint8_t* rgb, int stride, |
| uint32_t width, uint32_t height, int has_alpha, |
| size_t* const file_size) { |
| HRESULT hr = S_OK; |
| IWICImagingFactory* factory = nullptr; |
| IWICBitmapFrameEncode* frame = nullptr; |
| IWICBitmapEncoder* encoder = nullptr; |
| IStream* stream = nullptr; |
| WICPixelFormatGUID pixel_format = |
| has_alpha ? GUID_WICPixelFormat32bppBGRA : GUID_WICPixelFormat24bppBGR; |
| |
| if (file_path == nullptr || rgb == nullptr) return E_INVALIDARG; |
| |
| IFS(CoInitialize(nullptr)); |
| IFS(CoCreateInstance( |
| MAKE_REFGUID(CLSID_WICImagingFactory), nullptr, CLSCTX_INPROC_SERVER, |
| MAKE_REFGUID(IID_IWICImagingFactory), (LPVOID*)&factory)); |
| if (hr == REGDB_E_CLASSNOTREG) { |
| fprintf(stderr, |
| "Couldn't access Windows Imaging Component (are you running " |
| "Windows XP SP3 or newer?). PNG support not available. " |
| "Use -ppm or -pgm for available PPM and PGM formats.\n"); |
| } |
| IFS(CreateOutputStream(file_path, use_stdout, overwrite, &stream)); |
| IFS(IWICImagingFactory_CreateEncoder(factory, container_guid, nullptr, |
| &encoder)); |
| IFS(IWICBitmapEncoder_Initialize(encoder, stream, WICBitmapEncoderNoCache)); |
| IFS(IWICBitmapEncoder_CreateNewFrame(encoder, &frame, nullptr)); |
| IFS(IWICBitmapFrameEncode_Initialize(frame, nullptr)); |
| IFS(IWICBitmapFrameEncode_SetSize(frame, width, height)); |
| IFS(IWICBitmapFrameEncode_SetPixelFormat(frame, &pixel_format)); |
| IFS(IWICBitmapFrameEncode_WritePixels(frame, height, stride, height * stride, |
| rgb)); |
| IFS(IWICBitmapFrameEncode_Commit(frame)); |
| IFS(IWICBitmapEncoder_Commit(encoder)); |
| |
| if (SUCCEEDED(hr) && use_stdout) { |
| HGLOBAL image; |
| IFS(GetHGlobalFromStream(stream, &image)); |
| if (SUCCEEDED(hr)) { |
| HANDLE std_output = GetStdHandle(STD_OUTPUT_HANDLE); |
| DWORD mode; |
| const BOOL update_mode = GetConsoleMode(std_output, &mode); |
| const void* const image_mem = GlobalLock(image); |
| DWORD bytes_written = 0; |
| |
| // Clear output processing if necessary, then output the image. |
| if (update_mode) SetConsoleMode(std_output, 0); |
| if (!WriteFile(std_output, image_mem, (DWORD)GlobalSize(image), |
| &bytes_written, nullptr) || |
| bytes_written != GlobalSize(image)) { |
| hr = E_FAIL; |
| } else if (file_size != nullptr) { |
| *file_size = (size_t)bytes_written; |
| } |
| if (update_mode) SetConsoleMode(std_output, mode); |
| GlobalUnlock(image); |
| } |
| } |
| |
| if (frame != nullptr) IUnknown_Release(frame); |
| if (encoder != nullptr) IUnknown_Release(encoder); |
| if (factory != nullptr) IUnknown_Release(factory); |
| if (stream != nullptr) IUnknown_Release(stream); |
| return hr; |
| } |
| |
| } // namespace |
| |
| WP2Status WritePNG(const ArgbBuffer& buffer, FILE*, const char* const file_path, |
| bool use_stdout, bool overwrite, size_t* const file_size) { |
| WP2_CHECK_OK(file_path != nullptr, WP2_STATUS_NULL_PARAMETER); |
| WP2_CHECK_OK(buffer.format() == WP2_Argb_32, WP2_STATUS_UNSUPPORTED_FEATURE); |
| |
| const uint32_t width = buffer.width(); |
| const uint32_t height = buffer.height(); |
| const uint8_t* const Argb = buffer.Argb; |
| const uint32_t stride = buffer.stride(); |
| const int ok = SUCCEEDED(WriteUsingWIC( |
| file_path, use_stdout, overwrite, MAKE_REFGUID(GUID_ContainerFormatPng), |
| rgb, stride, width, height, 1, file_size)); |
| return ok ? WP2_STATUS_OK : WP2_STATUS_BAD_WRITE; |
| } |
| |
| #elif defined(WP2_HAVE_PNG) // !HAVE_WINCODEC_H |
| |
| namespace { |
| |
| void PNGAPI PNGErrorFunction(png_structp png, png_const_charp dummy) { |
| (void)dummy; // remove variable-unused warning |
| longjmp(png_jmpbuf(png), 1); |
| } |
| |
| } // namespace |
| |
| WP2Status WritePNG(const ArgbBuffer& buffer, FILE* fout, |
| const char*, bool, bool, size_t*) { |
| WP2_CHECK_OK(fout != nullptr, WP2_STATUS_NULL_PARAMETER); |
| WP2_CHECK_OK(buffer.format() == WP2_Argb_32, WP2_STATUS_UNSUPPORTED_FEATURE); |
| |
| const uint32_t width = buffer.width(); |
| const uint32_t height = buffer.height(); |
| const bool has_alpha = buffer.HasTransparency(); |
| volatile png_bytep row = (png_bytep)buffer.GetRow(0); |
| Vector_u8 ARGB; |
| WP2_CHECK_ALLOC_OK(ARGB.resize(width * (has_alpha ? 4u : 3u))); |
| volatile png_structp png; |
| volatile png_infop info; |
| |
| png = png_create_write_struct(PNG_LIBPNG_VER_STRING, nullptr, |
| PNGErrorFunction, nullptr); |
| if (png == nullptr) return WP2_STATUS_OUT_OF_MEMORY; |
| |
| info = png_create_info_struct(png); |
| if (info == nullptr) { |
| png_destroy_write_struct((png_structpp)&png, nullptr); |
| return WP2_STATUS_OUT_OF_MEMORY; |
| } |
| if (setjmp(png_jmpbuf(png))) { |
| png_destroy_write_struct((png_structpp)&png, (png_infopp)&info); |
| return WP2_STATUS_BAD_WRITE; |
| } |
| png_init_io(png, fout); |
| png_set_IHDR(png, info, width, height, 8, |
| has_alpha ? PNG_COLOR_TYPE_RGBA : PNG_COLOR_TYPE_RGB, |
| PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_DEFAULT, |
| PNG_FILTER_TYPE_DEFAULT); |
| png_write_info(png, info); |
| |
| WP2ArgbConverterInit(); |
| for (png_uint_32 y = 0; y < height; ++y) { |
| WP2ArgbConvertTo[has_alpha ? WP2_RGBA_32 : WP2_RGB_24](row, width, |
| ARGB.data()); |
| png_bytep ptr[1] = {ARGB.data()}; |
| png_write_rows(png, ptr, 1); |
| row += buffer.stride(); |
| } |
| png_write_end(png, info); |
| png_destroy_write_struct((png_structpp)&png, (png_infopp)&info); |
| return WP2_STATUS_OK; |
| } |
| |
| #else // !HAVE_WINCODEC_H && !WP2_HAVE_PNG |
| |
| WP2Status WritePNG(const ArgbBuffer&, FILE* fout, const char*, bool, bool, |
| size_t*) { |
| WP2_CHECK_OK(fout != nullptr, WP2_STATUS_NULL_PARAMETER); |
| |
| fprintf(stderr, "PNG support not compiled. Please install the libpng " |
| "development package before building.\n"); |
| fprintf(stderr, "You can run with -ppm flag to decode in PPM format.\n"); |
| return WP2_STATUS_UNSUPPORTED_FEATURE; |
| } |
| |
| #endif |
| |
| } // namespace WP2 |
