diff options
Diffstat (limited to 'core/src/fxge/win32/fx_win32_dib.cpp')
| -rw-r--r-- | core/src/fxge/win32/fx_win32_dib.cpp | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/core/src/fxge/win32/fx_win32_dib.cpp b/core/src/fxge/win32/fx_win32_dib.cpp new file mode 100644 index 0000000000..a9cf78eac3 --- /dev/null +++ b/core/src/fxge/win32/fx_win32_dib.cpp @@ -0,0 +1,310 @@ +// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "../../../include/fxge/fx_ge.h"
+#if _FX_OS_ == _FX_WIN32_DESKTOP_ || _FX_OS_ == _FX_WIN64_
+#include <windows.h>
+#include "../../../include/fxge/fx_ge_win32.h"
+#include "win32_int.h"
+CFX_ByteString CFX_WindowsDIB::GetBitmapInfo(const CFX_DIBitmap* pBitmap)
+{
+ CFX_ByteString result;
+ int len = sizeof (BITMAPINFOHEADER);
+ if (pBitmap->GetBPP() == 1 || pBitmap->GetBPP() == 8) {
+ len += sizeof (DWORD) * (int)(1 << pBitmap->GetBPP());
+ }
+ BITMAPINFOHEADER* pbmih = (BITMAPINFOHEADER*)result.GetBuffer(len);
+ FXSYS_memset32(pbmih, 0, sizeof (BITMAPINFOHEADER));
+ pbmih->biSize = sizeof(BITMAPINFOHEADER);
+ pbmih->biBitCount = pBitmap->GetBPP();
+ pbmih->biCompression = BI_RGB;
+ pbmih->biHeight = -(int)pBitmap->GetHeight();
+ pbmih->biPlanes = 1;
+ pbmih->biWidth = pBitmap->GetWidth();
+ if (pBitmap->GetBPP() == 8) {
+ FX_DWORD* pPalette = (FX_DWORD*)(pbmih + 1);
+ if (pBitmap->GetPalette() == NULL) {
+ for (int i = 0; i < 256; i ++) {
+ pPalette[i] = i * 0x010101;
+ }
+ } else {
+ for (int i = 0; i < 256; i ++) {
+ pPalette[i] = pBitmap->GetPalette()[i];
+ }
+ }
+ }
+ if (pBitmap->GetBPP() == 1) {
+ FX_DWORD* pPalette = (FX_DWORD*)(pbmih + 1);
+ if (pBitmap->GetPalette() == NULL) {
+ pPalette[0] = 0;
+ pPalette[1] = 0xffffff;
+ } else {
+ pPalette[0] = pBitmap->GetPalette()[0];
+ pPalette[1] = pBitmap->GetPalette()[1];
+ }
+ }
+ result.ReleaseBuffer(len);
+ return result;
+}
+CFX_DIBitmap* _FX_WindowsDIB_LoadFromBuf(BITMAPINFO* pbmi, LPVOID pData, FX_BOOL bAlpha)
+{
+ int width = pbmi->bmiHeader.biWidth;
+ int height = pbmi->bmiHeader.biHeight;
+ BOOL bBottomUp = TRUE;
+ if (height < 0) {
+ height = -height;
+ bBottomUp = FALSE;
+ }
+ int pitch = (width * pbmi->bmiHeader.biBitCount + 31) / 32 * 4;
+ CFX_DIBitmap* pBitmap = FX_NEW CFX_DIBitmap;
+ if (!pBitmap) {
+ return NULL;
+ }
+ FXDIB_Format format = bAlpha ? (FXDIB_Format)(pbmi->bmiHeader.biBitCount + 0x200) : (FXDIB_Format)pbmi->bmiHeader.biBitCount;
+ FX_BOOL ret = pBitmap->Create(width, height, format);
+ if (!ret) {
+ delete pBitmap;
+ return NULL;
+ }
+ FXSYS_memcpy32(pBitmap->GetBuffer(), pData, pitch * height);
+ if (bBottomUp) {
+ FX_LPBYTE temp_buf = FX_Alloc(FX_BYTE, pitch);
+ if (!temp_buf) {
+ if (pBitmap) {
+ delete pBitmap;
+ }
+ return NULL;
+ }
+ int top = 0, bottom = height - 1;
+ while (top < bottom) {
+ FXSYS_memcpy32(temp_buf, pBitmap->GetBuffer() + top * pitch, pitch);
+ FXSYS_memcpy32(pBitmap->GetBuffer() + top * pitch, pBitmap->GetBuffer() + bottom * pitch, pitch);
+ FXSYS_memcpy32(pBitmap->GetBuffer() + bottom * pitch, temp_buf, pitch);
+ top ++;
+ bottom --;
+ }
+ FX_Free(temp_buf);
+ temp_buf = NULL;
+ }
+ if (pbmi->bmiHeader.biBitCount == 1) {
+ for (int i = 0; i < 2; i ++) {
+ pBitmap->SetPaletteEntry(i, ((FX_DWORD*)pbmi->bmiColors)[i] | 0xff000000);
+ }
+ } else if (pbmi->bmiHeader.biBitCount == 8) {
+ for (int i = 0; i < 256; i ++) {
+ pBitmap->SetPaletteEntry(i, ((FX_DWORD*)pbmi->bmiColors)[i] | 0xff000000);
+ }
+ }
+ return pBitmap;
+}
+CFX_DIBitmap* CFX_WindowsDIB::LoadFromBuf(BITMAPINFO* pbmi, LPVOID pData)
+{
+ return _FX_WindowsDIB_LoadFromBuf(pbmi, pData, FALSE);
+}
+HBITMAP CFX_WindowsDIB::GetDDBitmap(const CFX_DIBitmap* pBitmap, HDC hDC)
+{
+ CFX_ByteString info = GetBitmapInfo(pBitmap);
+ HBITMAP hBitmap = NULL;
+ hBitmap = CreateDIBitmap(hDC, (BITMAPINFOHEADER*)(FX_LPCSTR)info, CBM_INIT,
+ pBitmap->GetBuffer(), (BITMAPINFO*)(FX_LPCSTR)info, DIB_RGB_COLORS);
+ return hBitmap;
+}
+void GetBitmapSize(HBITMAP hBitmap, int& w, int& h)
+{
+ BITMAP bmp;
+ GetObject(hBitmap, sizeof bmp, &bmp);
+ w = bmp.bmWidth;
+ h = bmp.bmHeight;
+}
+CFX_DIBitmap* CFX_WindowsDIB::LoadFromFile(FX_LPCWSTR filename)
+{
+ CWin32Platform* pPlatform = (CWin32Platform*)CFX_GEModule::Get()->GetPlatformData();
+ if (pPlatform->m_GdiplusExt.IsAvailable()) {
+ WINDIB_Open_Args_ args;
+ args.flags = WINDIB_OPEN_PATHNAME;
+ args.path_name = filename;
+ return pPlatform->m_GdiplusExt.LoadDIBitmap(args);
+ }
+ HBITMAP hBitmap = (HBITMAP)LoadImageW(NULL, (wchar_t*)filename, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
+ if (hBitmap == NULL) {
+ return NULL;
+ }
+ HDC hDC = CreateCompatibleDC(NULL);
+ int width, height;
+ GetBitmapSize(hBitmap, width, height);
+ CFX_DIBitmap* pDIBitmap = FX_NEW CFX_DIBitmap;
+ if (!pDIBitmap) {
+ DeleteDC(hDC);
+ return NULL;
+ }
+ if (!pDIBitmap->Create(width, height, FXDIB_Rgb)) {
+ delete pDIBitmap;
+ DeleteDC(hDC);
+ return NULL;
+ }
+ CFX_ByteString info = GetBitmapInfo(pDIBitmap);
+ int ret = GetDIBits(hDC, hBitmap, 0, height, pDIBitmap->GetBuffer(), (BITMAPINFO*)(FX_LPCSTR)info, DIB_RGB_COLORS);
+ if (!ret) {
+ if (pDIBitmap) {
+ delete pDIBitmap;
+ }
+ pDIBitmap = NULL;
+ }
+ DeleteDC(hDC);
+ return pDIBitmap;
+}
+CFX_DIBitmap* CFX_WindowsDIB::LoadDIBitmap(WINDIB_Open_Args_ args)
+{
+ CWin32Platform* pPlatform = (CWin32Platform*)CFX_GEModule::Get()->GetPlatformData();
+ if (pPlatform->m_GdiplusExt.IsAvailable()) {
+ return pPlatform->m_GdiplusExt.LoadDIBitmap(args);
+ } else if (args.flags == WINDIB_OPEN_MEMORY) {
+ return NULL;
+ }
+ HBITMAP hBitmap = (HBITMAP)LoadImageW(NULL, (wchar_t*)args.path_name, IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE);
+ if (hBitmap == NULL) {
+ return NULL;
+ }
+ HDC hDC = CreateCompatibleDC(NULL);
+ int width, height;
+ GetBitmapSize(hBitmap, width, height);
+ CFX_DIBitmap* pDIBitmap = FX_NEW CFX_DIBitmap;
+ if (!pDIBitmap) {
+ DeleteDC(hDC);
+ return NULL;
+ }
+ if (!pDIBitmap->Create(width, height, FXDIB_Rgb)) {
+ delete pDIBitmap;
+ DeleteDC(hDC);
+ return NULL;
+ }
+ CFX_ByteString info = GetBitmapInfo(pDIBitmap);
+ int ret = GetDIBits(hDC, hBitmap, 0, height, pDIBitmap->GetBuffer(), (BITMAPINFO*)(FX_LPCSTR)info, DIB_RGB_COLORS);
+ if (!ret) {
+ if (pDIBitmap) {
+ delete pDIBitmap;
+ }
+ pDIBitmap = NULL;
+ }
+ DeleteDC(hDC);
+ return pDIBitmap;
+}
+CFX_DIBitmap* CFX_WindowsDIB::LoadFromDDB(HDC hDC, HBITMAP hBitmap, FX_DWORD* pPalette, FX_DWORD palsize)
+{
+ FX_BOOL bCreatedDC = hDC == NULL;
+ if (hDC == NULL) {
+ hDC = CreateCompatibleDC(NULL);
+ }
+ BITMAPINFOHEADER bmih;
+ FXSYS_memset32(&bmih, 0, sizeof bmih);
+ bmih.biSize = sizeof bmih;
+ GetDIBits(hDC, hBitmap, 0, 0, NULL, (BITMAPINFO*)&bmih, DIB_RGB_COLORS);
+ int width = bmih.biWidth;
+ int height = abs(bmih.biHeight);
+ bmih.biHeight = -height;
+ bmih.biCompression = BI_RGB;
+ CFX_DIBitmap* pDIBitmap = FX_NEW CFX_DIBitmap;
+ if (!pDIBitmap) {
+ return NULL;
+ }
+ int ret = 0;
+ if (bmih.biBitCount == 1 || bmih.biBitCount == 8) {
+ int size = sizeof (BITMAPINFOHEADER) + 8;
+ if (bmih.biBitCount == 8) {
+ size += sizeof (FX_DWORD) * 254;
+ }
+ BITMAPINFO* pbmih = (BITMAPINFO*)FX_Alloc(FX_BYTE, size);
+ if (!pbmih) {
+ delete pDIBitmap;
+ if (bCreatedDC) {
+ DeleteDC(hDC);
+ }
+ return NULL;
+ }
+ FXSYS_memset32(pbmih, 0, sizeof (BITMAPINFOHEADER));
+ pbmih->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
+ pbmih->bmiHeader.biBitCount = bmih.biBitCount;
+ pbmih->bmiHeader.biCompression = BI_RGB;
+ pbmih->bmiHeader.biHeight = -height;
+ pbmih->bmiHeader.biPlanes = 1;
+ pbmih->bmiHeader.biWidth = bmih.biWidth;
+ if (!pDIBitmap->Create(bmih.biWidth, height, bmih.biBitCount == 1 ? FXDIB_1bppRgb : FXDIB_8bppRgb)) {
+ delete pDIBitmap;
+ FX_Free(pbmih);
+ if (bCreatedDC) {
+ DeleteDC(hDC);
+ }
+ return NULL;
+ }
+ ret = GetDIBits(hDC, hBitmap, 0, height, pDIBitmap->GetBuffer(), (BITMAPINFO*)pbmih, DIB_RGB_COLORS);
+ FX_Free(pbmih);
+ pbmih = NULL;
+ pDIBitmap->CopyPalette(pPalette, palsize);
+ } else {
+ if (bmih.biBitCount <= 24) {
+ bmih.biBitCount = 24;
+ } else {
+ bmih.biBitCount = 32;
+ }
+ if (!pDIBitmap->Create(bmih.biWidth, height, bmih.biBitCount == 24 ? FXDIB_Rgb : FXDIB_Rgb32)) {
+ delete pDIBitmap;
+ if (bCreatedDC) {
+ DeleteDC(hDC);
+ }
+ return NULL;
+ }
+ ret = GetDIBits(hDC, hBitmap, 0, height, pDIBitmap->GetBuffer(), (BITMAPINFO*)&bmih, DIB_RGB_COLORS);
+ if (ret != 0 && bmih.biBitCount == 32) {
+ int pitch = pDIBitmap->GetPitch();
+ for (int row = 0; row < height; row ++) {
+ FX_BYTE* dest_scan = (FX_BYTE*)(pDIBitmap->GetBuffer() + row * pitch);
+ for (int col = 0; col < width; col++) {
+ dest_scan[3] = 255;
+ dest_scan += 4;
+ }
+ }
+ }
+ }
+ if (ret == 0) {
+ if (pDIBitmap) {
+ delete pDIBitmap;
+ }
+ pDIBitmap = NULL;
+ }
+ if (bCreatedDC) {
+ DeleteDC(hDC);
+ }
+ return pDIBitmap;
+}
+CFX_WindowsDIB::CFX_WindowsDIB(HDC hDC, int width, int height)
+{
+ Create(width, height, FXDIB_Rgb, (FX_LPBYTE)1);
+ BITMAPINFOHEADER bmih;
+ FXSYS_memset32(&bmih, 0, sizeof bmih);
+ bmih.biSize = sizeof bmih;
+ bmih.biBitCount = 24;
+ bmih.biHeight = -height;
+ bmih.biPlanes = 1;
+ bmih.biWidth = width;
+ m_hBitmap = CreateDIBSection(hDC, (BITMAPINFO*)&bmih, DIB_RGB_COLORS, (LPVOID*)&m_pBuffer, NULL, 0);
+ m_hMemDC = CreateCompatibleDC(hDC);
+ m_hOldBitmap = (HBITMAP)SelectObject(m_hMemDC, m_hBitmap);
+}
+CFX_WindowsDIB::~CFX_WindowsDIB()
+{
+ SelectObject(m_hMemDC, m_hOldBitmap);
+ DeleteDC(m_hMemDC);
+ DeleteObject(m_hBitmap);
+}
+void CFX_WindowsDIB::LoadFromDevice(HDC hDC, int left, int top)
+{
+ ::BitBlt(m_hMemDC, 0, 0, m_Width, m_Height, hDC, left, top, SRCCOPY);
+}
+void CFX_WindowsDIB::SetToDevice(HDC hDC, int left, int top)
+{
+ ::BitBlt(hDC, left, top, m_Width, m_Height, m_hMemDC, 0, 0, SRCCOPY);
+}
+#endif
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