FreeRDP/winpr/libwinpr/utils/image.c

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/**
* WinPR: Windows Portable Runtime
* Image Utils
*
* Copyright 2014 Marc-Andre Moreau <marcandre.moreau@gmail.com>
* Copyright 2016 Inuvika Inc.
* Copyright 2016 David PHAM-VAN <d.phamvan@inuvika.com>
*
* 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.
*/
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#include <winpr/config.h>
#include <winpr/wtypes.h>
#include <winpr/crt.h>
#include <winpr/file.h>
#include <winpr/image.h>
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#include "lodepng/lodepng.h"
#include <winpr/stream.h>
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#include "../log.h"
#define TAG WINPR_TAG("utils.image")
static BOOL writeBitmapFileHeader(wStream* s, const WINPR_BITMAP_FILE_HEADER* bf)
{
if (!Stream_EnsureRemainingCapacity(s, sizeof(WINPR_BITMAP_FILE_HEADER)))
return FALSE;
Stream_Write_UINT8(s, bf->bfType[0]);
Stream_Write_UINT8(s, bf->bfType[1]);
Stream_Write_UINT32(s, bf->bfSize);
Stream_Write_UINT16(s, bf->bfReserved1);
Stream_Write_UINT16(s, bf->bfReserved2);
Stream_Write_UINT32(s, bf->bfOffBits);
return TRUE;
}
static BOOL readBitmapFileHeader(wStream* s, WINPR_BITMAP_FILE_HEADER* bf)
{
if (!s || !bf || (!Stream_CheckAndLogRequiredLength(TAG, s, sizeof(WINPR_BITMAP_FILE_HEADER))))
return FALSE;
Stream_Read_UINT8(s, bf->bfType[0]);
Stream_Read_UINT8(s, bf->bfType[1]);
Stream_Read_UINT32(s, bf->bfSize);
Stream_Read_UINT16(s, bf->bfReserved1);
Stream_Read_UINT16(s, bf->bfReserved2);
Stream_Read_UINT32(s, bf->bfOffBits);
return TRUE;
}
static BOOL writeBitmapInfoHeader(wStream* s, const WINPR_BITMAP_INFO_HEADER* bi)
{
if (!Stream_EnsureRemainingCapacity(s, sizeof(WINPR_BITMAP_INFO_HEADER)))
return FALSE;
Stream_Write_UINT32(s, bi->biSize);
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Stream_Write_INT32(s, bi->biWidth);
Stream_Write_INT32(s, bi->biHeight);
Stream_Write_UINT16(s, bi->biPlanes);
Stream_Write_UINT16(s, bi->biBitCount);
Stream_Write_UINT32(s, bi->biCompression);
Stream_Write_UINT32(s, bi->biSizeImage);
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Stream_Write_INT32(s, bi->biXPelsPerMeter);
Stream_Write_INT32(s, bi->biYPelsPerMeter);
Stream_Write_UINT32(s, bi->biClrUsed);
Stream_Write_UINT32(s, bi->biClrImportant);
return TRUE;
}
static BOOL readBitmapInfoHeader(wStream* s, WINPR_BITMAP_INFO_HEADER* bi)
{
if (!s || !bi || (!Stream_CheckAndLogRequiredLength(TAG, s, sizeof(WINPR_BITMAP_INFO_HEADER))))
return FALSE;
Stream_Read_UINT32(s, bi->biSize);
Stream_Read_INT32(s, bi->biWidth);
Stream_Read_INT32(s, bi->biHeight);
Stream_Read_UINT16(s, bi->biPlanes);
Stream_Read_UINT16(s, bi->biBitCount);
Stream_Read_UINT32(s, bi->biCompression);
Stream_Read_UINT32(s, bi->biSizeImage);
Stream_Read_INT32(s, bi->biXPelsPerMeter);
Stream_Read_INT32(s, bi->biYPelsPerMeter);
Stream_Read_UINT32(s, bi->biClrUsed);
Stream_Read_UINT32(s, bi->biClrImportant);
return TRUE;
}
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BYTE* winpr_bitmap_construct_header(size_t width, size_t height, size_t bpp)
{
BYTE* result = NULL;
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WINPR_BITMAP_FILE_HEADER bf = { 0 };
WINPR_BITMAP_INFO_HEADER bi = { 0 };
wStream* s;
size_t imgSize;
imgSize = width * height * (bpp / 8);
if ((width > INT32_MAX) || (height > INT32_MAX) || (bpp > UINT16_MAX) || (imgSize > UINT32_MAX))
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return NULL;
s = Stream_New(NULL, WINPR_IMAGE_BMP_HEADER_LEN);
if (!s)
return NULL;
bf.bfType[0] = 'B';
bf.bfType[1] = 'M';
bf.bfReserved1 = 0;
bf.bfReserved2 = 0;
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bf.bfOffBits = (UINT32)sizeof(WINPR_BITMAP_FILE_HEADER) + sizeof(WINPR_BITMAP_INFO_HEADER);
bi.biSizeImage = (UINT32)imgSize;
bf.bfSize = bf.bfOffBits + bi.biSizeImage;
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bi.biWidth = (INT32)width;
bi.biHeight = -1 * (INT32)height;
bi.biPlanes = 1;
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bi.biBitCount = (UINT16)bpp;
bi.biCompression = 0;
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bi.biXPelsPerMeter = (INT32)width;
bi.biYPelsPerMeter = (INT32)height;
bi.biClrUsed = 0;
bi.biClrImportant = 0;
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bi.biSize = (UINT32)sizeof(WINPR_BITMAP_INFO_HEADER);
if (!writeBitmapFileHeader(s, &bf))
goto fail;
if (!writeBitmapInfoHeader(s, &bi))
goto fail;
result = Stream_Buffer(s);
fail:
Stream_Free(s, result == 0);
return result;
}
/**
* Refer to "Compressed Image File Formats: JPEG, PNG, GIF, XBM, BMP" book
*/
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int winpr_bitmap_write(const char* filename, const BYTE* data, size_t width, size_t height,
size_t bpp)
{
return winpr_bitmap_write_ex(filename, data, 0, width, height, bpp);
}
int winpr_bitmap_write_ex(const char* filename, const BYTE* data, size_t stride, size_t width,
size_t height, size_t bpp)
{
FILE* fp = NULL;
BYTE* bmp_header = NULL;
const size_t bpp_stride = width * (bpp / 8);
if (stride == 0)
stride = bpp_stride;
int ret = -1;
fp = winpr_fopen(filename, "w+b");
if (!fp)
{
WLog_ERR(TAG, "failed to open file %s", filename);
return -1;
}
bmp_header = winpr_bitmap_construct_header(width, height, bpp);
if (!bmp_header)
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goto fail;
if (fwrite(bmp_header, WINPR_IMAGE_BMP_HEADER_LEN, 1, fp) != 1)
goto fail;
for (size_t y = 0; y < height; y++)
{
const void* line = &data[stride * y];
if (fwrite(line, bpp_stride, 1, fp) != 1)
goto fail;
}
ret = 1;
fail:
if (fp)
fclose(fp);
free(bmp_header);
return ret;
}
int winpr_image_write(wImage* image, const char* filename)
{
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int status = -1;
if (image->type == WINPR_IMAGE_BITMAP)
{
status = winpr_bitmap_write(filename, image->data, image->width, image->height,
image->bitsPerPixel);
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}
else
{
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unsigned lodepng_status;
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lodepng_status = lodepng_encode32_file(filename, image->data, image->width, image->height);
status = (lodepng_status) ? -1 : 1;
}
return status;
}
static int winpr_image_png_read_fp(wImage* image, FILE* fp)
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{
INT64 size;
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BYTE* data;
UINT32 width;
UINT32 height;
unsigned lodepng_status;
_fseeki64(fp, 0, SEEK_END);
size = _ftelli64(fp);
_fseeki64(fp, 0, SEEK_SET);
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if (size < 0)
return -1;
data = (BYTE*)malloc((size_t)size);
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if (!data)
return -1;
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if (fread((void*)data, (size_t)size, 1, fp) != 1)
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{
free(data);
return -1;
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}
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lodepng_status = lodepng_decode32(&(image->data), &width, &height, data, (size_t)size);
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free(data);
if (lodepng_status)
return -1;
image->width = width;
image->height = height;
image->bitsPerPixel = 32;
image->bytesPerPixel = 4;
image->scanline = image->bytesPerPixel * image->width;
return 1;
}
static int winpr_image_png_read_buffer(wImage* image, const BYTE* buffer, size_t size)
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{
UINT32 width;
UINT32 height;
unsigned lodepng_status = lodepng_decode32(&(image->data), &width, &height, buffer, size);
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if (lodepng_status)
return -1;
image->width = width;
image->height = height;
image->bitsPerPixel = 32;
image->bytesPerPixel = 4;
image->scanline = image->bytesPerPixel * image->width;
return 1;
}
static int winpr_image_bitmap_read_fp(wImage* image, FILE* fp)
{
int rc = -1;
UINT32 index;
BOOL vFlip;
BYTE* pDstData;
wStream* s;
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wStream sbuffer = { 0 };
BYTE buffer[sizeof(WINPR_BITMAP_FILE_HEADER) + sizeof(WINPR_BITMAP_INFO_HEADER)] = { 0 };
WINPR_BITMAP_FILE_HEADER bf = { 0 };
WINPR_BITMAP_INFO_HEADER bi = { 0 };
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if (!image || !fp)
return -1;
image->data = NULL;
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s = Stream_StaticInit(&sbuffer, buffer, sizeof(buffer));
if (!s)
return -1;
if (fread(Stream_Buffer(s), Stream_Capacity(s), 1, fp) != 1)
goto fail;
if (!readBitmapFileHeader(s, &bf) || !readBitmapInfoHeader(s, &bi))
goto fail;
if ((bf.bfType[0] != 'B') || (bf.bfType[1] != 'M'))
goto fail;
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image->type = WINPR_IMAGE_BITMAP;
if (_ftelli64(fp) != bf.bfOffBits)
_fseeki64(fp, bf.bfOffBits, SEEK_SET);
if (bi.biWidth < 0)
goto fail;
image->width = (UINT32)bi.biWidth;
if (bi.biHeight < 0)
{
vFlip = FALSE;
image->height = (UINT32)(-1 * bi.biHeight);
}
else
{
vFlip = TRUE;
image->height = (UINT32)bi.biHeight;
}
image->bitsPerPixel = bi.biBitCount;
image->bytesPerPixel = (image->bitsPerPixel / 8);
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image->scanline = (bi.biSizeImage / image->height);
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image->data = (BYTE*)malloc(bi.biSizeImage);
if (!image->data)
goto fail;
if (!vFlip)
{
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if (fread((void*)image->data, bi.biSizeImage, 1, fp) != 1)
goto fail;
}
else
{
pDstData = &(image->data[(image->height - 1) * image->scanline]);
for (index = 0; index < image->height; index++)
{
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if (fread((void*)pDstData, image->scanline, 1, fp) != 1)
goto fail;
pDstData -= image->scanline;
}
}
rc = 1;
fail:
if (rc < 0)
{
free(image->data);
image->data = NULL;
}
return 1;
}
static int winpr_image_bitmap_read_buffer(wImage* image, const BYTE* buffer, size_t size)
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{
int rc = -1;
UINT32 index;
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BOOL vFlip;
BYTE* pDstData;
WINPR_BITMAP_FILE_HEADER bf;
WINPR_BITMAP_INFO_HEADER bi;
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wStream sbuffer = { 0 };
wStream* s = Stream_StaticConstInit(&sbuffer, buffer, size);
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if (!s)
return -1;
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if (!readBitmapFileHeader(s, &bf) || !readBitmapInfoHeader(s, &bi))
goto fail;
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if ((bf.bfType[0] != 'B') || (bf.bfType[1] != 'M'))
goto fail;
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image->type = WINPR_IMAGE_BITMAP;
if (Stream_GetPosition(s) > bf.bfOffBits)
goto fail;
if (!Stream_SafeSeek(s, bf.bfOffBits - Stream_GetPosition(s)))
goto fail;
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if (!Stream_CheckAndLogRequiredCapacity(TAG, s, bi.biSizeImage))
goto fail;
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if (bi.biWidth < 0)
goto fail;
image->width = (UINT32)bi.biWidth;
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if (bi.biHeight < 0)
{
vFlip = FALSE;
image->height = (UINT32)(-1 * bi.biHeight);
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}
else
{
vFlip = TRUE;
image->height = (UINT32)bi.biHeight;
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}
image->bitsPerPixel = bi.biBitCount;
image->bytesPerPixel = (image->bitsPerPixel / 8);
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image->scanline = (bi.biSizeImage / image->height);
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image->data = (BYTE*)malloc(bi.biSizeImage);
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if (!image->data)
goto fail;
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if (!vFlip)
Stream_Read(s, image->data, bi.biSizeImage);
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else
{
pDstData = &(image->data[(image->height - 1) * image->scanline]);
for (index = 0; index < image->height; index++)
{
Stream_Read(s, pDstData, image->scanline);
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pDstData -= image->scanline;
}
}
rc = 1;
fail:
if (rc < 0)
{
free(image->data);
image->data = NULL;
}
return rc;
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}
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int winpr_image_read(wImage* image, const char* filename)
{
FILE* fp;
BYTE sig[8];
int status = -1;
fp = winpr_fopen(filename, "rb");
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if (!fp)
{
WLog_ERR(TAG, "failed to open file %s", filename);
return -1;
}
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if (fread((void*)&sig, sizeof(sig), 1, fp) != 1 || _fseeki64(fp, 0, SEEK_SET) < 0)
{
fclose(fp);
return -1;
}
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if ((sig[0] == 'B') && (sig[1] == 'M'))
{
image->type = WINPR_IMAGE_BITMAP;
status = winpr_image_bitmap_read_fp(image, fp);
}
else if ((sig[0] == 0x89) && (sig[1] == 'P') && (sig[2] == 'N') && (sig[3] == 'G') &&
(sig[4] == '\r') && (sig[5] == '\n') && (sig[6] == 0x1A) && (sig[7] == '\n'))
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{
image->type = WINPR_IMAGE_PNG;
status = winpr_image_png_read_fp(image, fp);
}
fclose(fp);
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return status;
}
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int winpr_image_read_buffer(wImage* image, const BYTE* buffer, size_t size)
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{
BYTE sig[8];
int status = -1;
if (size < 8)
return -1;
CopyMemory(sig, buffer, 8);
if ((sig[0] == 'B') && (sig[1] == 'M'))
{
image->type = WINPR_IMAGE_BITMAP;
status = winpr_image_bitmap_read_buffer(image, buffer, size);
}
else if ((sig[0] == 0x89) && (sig[1] == 'P') && (sig[2] == 'N') && (sig[3] == 'G') &&
(sig[4] == '\r') && (sig[5] == '\n') && (sig[6] == 0x1A) && (sig[7] == '\n'))
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{
image->type = WINPR_IMAGE_PNG;
status = winpr_image_png_read_buffer(image, buffer, size);
}
return status;
}
wImage* winpr_image_new(void)
{
wImage* image;
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image = (wImage*)calloc(1, sizeof(wImage));
if (!image)
return NULL;
return image;
}
void winpr_image_free(wImage* image, BOOL bFreeBuffer)
{
if (!image)
return;
if (bFreeBuffer)
free(image->data);
free(image);
}