mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-11-27 12:15:19 +01:00
297 lines
9.7 KiB
C
297 lines
9.7 KiB
C
/*
|
|
* libeg/load_bmp.c
|
|
* Loading function for BMP images
|
|
*
|
|
* Copyright (c) 2006 Christoph Pfisterer
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are
|
|
* met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* * Neither the name of Christoph Pfisterer nor the names of the
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
//#include "libegint.h"
|
|
|
|
#include "picopng.h"
|
|
|
|
#define DBG(...)
|
|
|
|
// BMP structures
|
|
|
|
#pragma pack(1)
|
|
|
|
typedef struct {
|
|
UINT8 Blue;
|
|
UINT8 Green;
|
|
UINT8 Red;
|
|
UINT8 Alpha;
|
|
} BMP_COLOR_MAP;
|
|
|
|
typedef struct {
|
|
CHAR8 CharB;
|
|
CHAR8 CharM;
|
|
UINT32 Size;
|
|
UINT16 Reserved[2];
|
|
UINT32 ImageOffset;
|
|
UINT32 HeaderSize;
|
|
INT32 PixelWidth;
|
|
INT32 PixelHeight;
|
|
UINT16 Planes; // Must be 1
|
|
UINT16 BitPerPixel; // 1, 4, 8, 24, or 32
|
|
UINT32 CompressionType;
|
|
UINT32 ImageSize; // Compressed image size in bytes
|
|
UINT32 XPixelsPerMeter;
|
|
UINT32 YPixelsPerMeter;
|
|
UINT32 NumberOfColors;
|
|
UINT32 ImportantColors;
|
|
} BMP_IMAGE_HEADER;
|
|
|
|
#pragma pack()
|
|
|
|
//
|
|
// Load BMP image
|
|
//
|
|
|
|
EG_IMAGE * egDecodeBMP(IN UINT8 *FileData, IN UINTN FileDataLength, IN BOOLEAN WantAlpha)
|
|
{
|
|
EG_IMAGE *NewImage;
|
|
BMP_IMAGE_HEADER *BmpHeader;
|
|
BMP_COLOR_MAP *BmpColorMap;
|
|
INT32 x, y;
|
|
INT32 RealPixelHeight, RealPixelWidth;
|
|
UINT8 *ImagePtr;
|
|
UINT8 *ImagePtrBase;
|
|
UINTN ImageLineOffset;
|
|
UINT8 ImageValue = 0;
|
|
UINT8 AlphaValue;
|
|
EFI_UGA_PIXEL *PixelPtr;
|
|
UINTN Index, BitIndex;
|
|
|
|
// read and check header
|
|
if (FileDataLength < sizeof(BMP_IMAGE_HEADER) || FileData == NULL)
|
|
return NULL;
|
|
BmpHeader = (BMP_IMAGE_HEADER *) FileData;
|
|
if (BmpHeader->CharB != 'B' || BmpHeader->CharM != 'M')
|
|
return NULL;
|
|
if (BmpHeader->BitPerPixel != 1 && BmpHeader->BitPerPixel != 4 &&
|
|
BmpHeader->BitPerPixel != 8 && BmpHeader->BitPerPixel != 24 &&
|
|
BmpHeader->BitPerPixel != 32)
|
|
return NULL;
|
|
// 32-bit images are always stored uncompressed
|
|
if (BmpHeader->CompressionType > 0 && BmpHeader->BitPerPixel != 32)
|
|
return NULL;
|
|
|
|
// calculate parameters
|
|
ImageLineOffset = BmpHeader->PixelWidth;
|
|
if (BmpHeader->BitPerPixel == 32)
|
|
ImageLineOffset *= 4;
|
|
else if (BmpHeader->BitPerPixel == 24)
|
|
ImageLineOffset *= 3;
|
|
else if (BmpHeader->BitPerPixel == 1)
|
|
ImageLineOffset = (ImageLineOffset + 7) >> 3;
|
|
else if (BmpHeader->BitPerPixel == 4)
|
|
ImageLineOffset = (ImageLineOffset + 1) >> 1;
|
|
if ((ImageLineOffset % 4) != 0)
|
|
ImageLineOffset = ImageLineOffset + (4 - (ImageLineOffset % 4));
|
|
|
|
// check bounds
|
|
RealPixelHeight = BmpHeader->PixelHeight > 0 ? BmpHeader->PixelHeight : -BmpHeader->PixelHeight;
|
|
RealPixelWidth = BmpHeader->PixelWidth > 0 ? BmpHeader->PixelWidth : -BmpHeader->PixelWidth;
|
|
if (BmpHeader->ImageOffset + ImageLineOffset * RealPixelHeight > FileDataLength)
|
|
return NULL;
|
|
|
|
// allocate image structure and buffer
|
|
NewImage = egCreateImage(RealPixelWidth, RealPixelHeight, WantAlpha);
|
|
if (NewImage == NULL)
|
|
return NULL;
|
|
AlphaValue = WantAlpha ? 255 : 0;
|
|
|
|
// convert image
|
|
BmpColorMap = (BMP_COLOR_MAP *)(FileData + sizeof(BMP_IMAGE_HEADER));
|
|
ImagePtrBase = FileData + BmpHeader->ImageOffset;
|
|
for (y = 0; y < RealPixelHeight; y++) {
|
|
ImagePtr = ImagePtrBase;
|
|
ImagePtrBase += ImageLineOffset;
|
|
// vertically mirror
|
|
if (BmpHeader->PixelHeight != RealPixelHeight) {
|
|
PixelPtr = NewImage->PixelData + y * RealPixelWidth;
|
|
} else {
|
|
PixelPtr = NewImage->PixelData + (RealPixelHeight - 1 - y) * RealPixelWidth;
|
|
}
|
|
|
|
switch (BmpHeader->BitPerPixel) {
|
|
|
|
case 1:
|
|
for (x = 0; x < RealPixelWidth; x++) {
|
|
BitIndex = x & 0x07;
|
|
if (BitIndex == 0)
|
|
ImageValue = *ImagePtr++;
|
|
|
|
Index = (ImageValue >> (7 - BitIndex)) & 0x01;
|
|
PixelPtr->Blue = BmpColorMap[Index].Blue;
|
|
PixelPtr->Green = BmpColorMap[Index].Green;
|
|
PixelPtr->Red = BmpColorMap[Index].Red;
|
|
PixelPtr->Reserved = AlphaValue;
|
|
PixelPtr++;
|
|
}
|
|
break;
|
|
|
|
case 4:
|
|
for (x = 0; x <= RealPixelWidth - 2; x += 2) {
|
|
ImageValue = *ImagePtr++;
|
|
|
|
Index = ImageValue >> 4;
|
|
PixelPtr->Blue = BmpColorMap[Index].Blue;
|
|
PixelPtr->Green = BmpColorMap[Index].Green;
|
|
PixelPtr->Red = BmpColorMap[Index].Red;
|
|
PixelPtr->Reserved = AlphaValue;
|
|
PixelPtr++;
|
|
|
|
Index = ImageValue & 0x0f;
|
|
PixelPtr->Blue = BmpColorMap[Index].Blue;
|
|
PixelPtr->Green = BmpColorMap[Index].Green;
|
|
PixelPtr->Red = BmpColorMap[Index].Red;
|
|
PixelPtr->Reserved = AlphaValue;
|
|
PixelPtr++;
|
|
}
|
|
if (x < RealPixelWidth) {
|
|
ImageValue = *ImagePtr++;
|
|
|
|
Index = ImageValue >> 4;
|
|
PixelPtr->Blue = BmpColorMap[Index].Blue;
|
|
PixelPtr->Green = BmpColorMap[Index].Green;
|
|
PixelPtr->Red = BmpColorMap[Index].Red;
|
|
PixelPtr->Reserved = AlphaValue;
|
|
PixelPtr++;
|
|
}
|
|
break;
|
|
|
|
case 8:
|
|
for (x = 0; x < RealPixelWidth; x++) {
|
|
Index = *ImagePtr++;
|
|
PixelPtr->Blue = BmpColorMap[Index].Blue;
|
|
PixelPtr->Green = BmpColorMap[Index].Green;
|
|
PixelPtr->Red = BmpColorMap[Index].Red;
|
|
PixelPtr->Reserved = AlphaValue;
|
|
PixelPtr++;
|
|
}
|
|
break;
|
|
|
|
case 24:
|
|
for (x = 0; x < RealPixelWidth; x++) {
|
|
PixelPtr->Blue = *ImagePtr++;
|
|
PixelPtr->Green = *ImagePtr++;
|
|
PixelPtr->Red = *ImagePtr++;
|
|
PixelPtr->Reserved = AlphaValue;
|
|
PixelPtr++;
|
|
}
|
|
break;
|
|
case 32:
|
|
for (x = 0; x < RealPixelWidth; x++) {
|
|
PixelPtr->Blue = *ImagePtr++;
|
|
PixelPtr->Green = *ImagePtr++;
|
|
PixelPtr->Red = *ImagePtr++;
|
|
PixelPtr->Reserved = *ImagePtr++;
|
|
if (!WantAlpha)
|
|
PixelPtr->Reserved = 255 - PixelPtr->Reserved;
|
|
PixelPtr++;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
return NewImage;
|
|
}
|
|
|
|
//
|
|
// Save BMP image
|
|
//
|
|
|
|
VOID egEncodeBMP(IN EG_IMAGE *Image, OUT UINT8 **FileDataReturn, OUT UINTN *FileDataLengthReturn)
|
|
{
|
|
BMP_IMAGE_HEADER *BmpHeader;
|
|
UINT8 *FileData;
|
|
UINT64 FileDataLength;
|
|
UINT8 *ImagePtr;
|
|
UINT8 *ImagePtrBase;
|
|
UINT64 ImageLineOffset;
|
|
EFI_UGA_PIXEL *PixelPtr;
|
|
INT64 x, y;
|
|
|
|
ImageLineOffset = MultU64x32(Image->Width, 3);
|
|
// if ((ImageLineOffset % 4) != 0)
|
|
// ImageLineOffset = ImageLineOffset + (4 - (ImageLineOffset % 4));
|
|
if ((ImageLineOffset & 3) != 0) {
|
|
ImageLineOffset = ImageLineOffset + (4 - (ImageLineOffset & 3));
|
|
}
|
|
|
|
|
|
// allocate buffer for file data
|
|
FileDataLength = sizeof(BMP_IMAGE_HEADER) + MultU64x64(Image->Height, ImageLineOffset);
|
|
FileData = AllocateZeroPool((UINTN)FileDataLength);
|
|
if (FileData == NULL) {
|
|
Print(L"Error allocate %d bytes\n", FileDataLength);
|
|
*FileDataReturn = NULL;
|
|
*FileDataLengthReturn = 0;
|
|
return;
|
|
}
|
|
|
|
// fill header
|
|
BmpHeader = (BMP_IMAGE_HEADER *)FileData;
|
|
BmpHeader->CharB = 'B';
|
|
BmpHeader->CharM = 'M';
|
|
BmpHeader->Size = (UINT32)FileDataLength;
|
|
BmpHeader->ImageOffset = sizeof(BMP_IMAGE_HEADER);
|
|
BmpHeader->HeaderSize = 40;
|
|
BmpHeader->PixelWidth = (UINT32)Image->Width;
|
|
BmpHeader->PixelHeight = (UINT32)Image->Height;
|
|
BmpHeader->Planes = 1;
|
|
BmpHeader->BitPerPixel = 24;
|
|
BmpHeader->CompressionType = 0;
|
|
BmpHeader->XPixelsPerMeter = 0xb13;
|
|
BmpHeader->YPixelsPerMeter = 0xb13;
|
|
|
|
// fill pixel buffer
|
|
ImagePtrBase = FileData + BmpHeader->ImageOffset;
|
|
for (y = 0; y < Image->Height; y++) {
|
|
ImagePtr = ImagePtrBase;
|
|
ImagePtrBase += ImageLineOffset;
|
|
// PixelPtr = Image->PixelData + (Image->Height - 1 - y) * Image->Width;
|
|
PixelPtr = Image->PixelData + (INT32)(Image->Height - 1 - y) * (INT32)Image->Width;
|
|
|
|
for (x = 0; x < Image->Width; x++) {
|
|
*ImagePtr++ = PixelPtr->Blue;
|
|
*ImagePtr++ = PixelPtr->Green;
|
|
*ImagePtr++ = PixelPtr->Red;
|
|
PixelPtr++;
|
|
}
|
|
}
|
|
|
|
*FileDataReturn = FileData;
|
|
*FileDataLengthReturn = (UINTN)FileDataLength;
|
|
}
|
|
/* EOF */
|