From 4bb4029b1523aa1dbd328fee6ac66385c5fa5b48 Mon Sep 17 00:00:00 2001 From: Nicolas Pena Date: Thu, 6 Apr 2017 14:28:21 -0400 Subject: Use CFX_MaybeOwned on the buffer of CFX_DIBitmap MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: Ia4181a2838de60e4e177165b3689338c86f45771 Reviewed-on: https://pdfium-review.googlesource.com/3817 Reviewed-by: Tom Sepez Commit-Queue: Nicolás Peña --- core/fxge/dib/cfx_dibitmap.cpp | 267 +++++++++++++++++++---------------------- core/fxge/dib/cfx_dibitmap.h | 6 +- 2 files changed, 128 insertions(+), 145 deletions(-) (limited to 'core/fxge/dib') diff --git a/core/fxge/dib/cfx_dibitmap.cpp b/core/fxge/dib/cfx_dibitmap.cpp index 54977a6d23..209fe93f12 100644 --- a/core/fxge/dib/cfx_dibitmap.cpp +++ b/core/fxge/dib/cfx_dibitmap.cpp @@ -19,8 +19,6 @@ #define MAX_OOM_LIMIT 12000000 CFX_DIBitmap::CFX_DIBitmap() { - m_bExtBuf = false; - m_pBuffer = nullptr; m_pPalette = nullptr; #ifdef _SKIA_SUPPORT_PATHS_ m_nFormat = Format::kCleared; @@ -49,17 +47,18 @@ bool CFX_DIBitmap::Create(int width, return false; if (pBuffer) { - m_pBuffer = pBuffer; - m_bExtBuf = true; + m_pBuffer.Reset(pBuffer); } else { int size = pitch * height + 4; int oomlimit = MAX_OOM_LIMIT; if (oomlimit >= 0 && size >= oomlimit) { - m_pBuffer = FX_TryAlloc(uint8_t, size); + m_pBuffer = + std::unique_ptr(FX_TryAlloc(uint8_t, size)); if (!m_pBuffer) return false; } else { - m_pBuffer = FX_Alloc(uint8_t, size); + m_pBuffer = + std::unique_ptr(FX_Alloc(uint8_t, size)); } } m_Width = width; @@ -71,12 +70,13 @@ bool CFX_DIBitmap::Create(int width, if (BuildAlphaMask()) return true; - if (m_bExtBuf) + if (pBuffer) return true; - FX_Free(m_pBuffer); m_pBuffer = nullptr; - m_Width = m_Height = m_Pitch = 0; + m_Width = 0; + m_Height = 0; + m_Pitch = 0; return false; } @@ -90,34 +90,27 @@ bool CFX_DIBitmap::Copy(const CFX_RetainPtr& pSrc) { SetPalette(pSrc->GetPalette()); SetAlphaMask(pSrc->m_pAlphaMask); for (int row = 0; row < pSrc->GetHeight(); row++) - memcpy(m_pBuffer + row * m_Pitch, pSrc->GetScanline(row), m_Pitch); + memcpy(m_pBuffer.Get() + row * m_Pitch, pSrc->GetScanline(row), m_Pitch); return true; } -CFX_DIBitmap::~CFX_DIBitmap() { - if (!m_bExtBuf) - FX_Free(m_pBuffer); -} +CFX_DIBitmap::~CFX_DIBitmap() {} uint8_t* CFX_DIBitmap::GetBuffer() const { - return m_pBuffer; + return m_pBuffer.Get(); } const uint8_t* CFX_DIBitmap::GetScanline(int line) const { - return m_pBuffer ? m_pBuffer + line * m_Pitch : nullptr; + return m_pBuffer.Get() ? m_pBuffer.Get() + line * m_Pitch : nullptr; } void CFX_DIBitmap::TakeOver(CFX_RetainPtr&& pSrcBitmap) { - if (!m_bExtBuf) - FX_Free(m_pBuffer); - - m_pBuffer = pSrcBitmap->m_pBuffer; + m_pBuffer = std::move(pSrcBitmap->m_pBuffer); m_pPalette = std::move(pSrcBitmap->m_pPalette); m_pAlphaMask = pSrcBitmap->m_pAlphaMask; pSrcBitmap->m_pBuffer = nullptr; pSrcBitmap->m_pAlphaMask = nullptr; m_bpp = pSrcBitmap->m_bpp; - m_bExtBuf = pSrcBitmap->m_bExtBuf; m_AlphaFlag = pSrcBitmap->m_AlphaFlag; m_Width = pSrcBitmap->m_Width; m_Height = pSrcBitmap->m_Height; @@ -125,24 +118,25 @@ void CFX_DIBitmap::TakeOver(CFX_RetainPtr&& pSrcBitmap) { } void CFX_DIBitmap::Clear(uint32_t color) { - if (!m_pBuffer) { + if (!m_pBuffer) return; - } + + uint8_t* pBuffer = m_pBuffer.Get(); switch (GetFormat()) { case FXDIB_1bppMask: - memset(m_pBuffer, (color & 0xff000000) ? 0xff : 0, m_Pitch * m_Height); + memset(pBuffer, (color & 0xff000000) ? 0xff : 0, m_Pitch * m_Height); break; case FXDIB_1bppRgb: { int index = FindPalette(color); - memset(m_pBuffer, index ? 0xff : 0, m_Pitch * m_Height); + memset(pBuffer, index ? 0xff : 0, m_Pitch * m_Height); break; } case FXDIB_8bppMask: - memset(m_pBuffer, color >> 24, m_Pitch * m_Height); + memset(pBuffer, color >> 24, m_Pitch * m_Height); break; case FXDIB_8bppRgb: { int index = FindPalette(color); - memset(m_pBuffer, index, m_Pitch * m_Height); + memset(pBuffer, index, m_Pitch * m_Height); break; } case FXDIB_Rgb: @@ -150,16 +144,16 @@ void CFX_DIBitmap::Clear(uint32_t color) { int a, r, g, b; ArgbDecode(color, a, r, g, b); if (r == g && g == b) { - memset(m_pBuffer, r, m_Pitch * m_Height); + memset(pBuffer, r, m_Pitch * m_Height); } else { int byte_pos = 0; for (int col = 0; col < m_Width; col++) { - m_pBuffer[byte_pos++] = b; - m_pBuffer[byte_pos++] = g; - m_pBuffer[byte_pos++] = r; + pBuffer[byte_pos++] = b; + pBuffer[byte_pos++] = g; + pBuffer[byte_pos++] = r; } for (int row = 1; row < m_Height; row++) { - memcpy(m_pBuffer + row * m_Pitch, m_pBuffer, m_Pitch); + memcpy(pBuffer + row * m_Pitch, pBuffer, m_Pitch); } } break; @@ -168,16 +162,13 @@ void CFX_DIBitmap::Clear(uint32_t color) { case FXDIB_Argb: { color = IsCmykImage() ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); #ifdef _SKIA_SUPPORT_ - if (FXDIB_Rgb32 == GetFormat() && !IsCmykImage()) { + if (FXDIB_Rgb32 == GetFormat() && !IsCmykImage()) color |= 0xFF000000; - } #endif - for (int i = 0; i < m_Width; i++) { - ((uint32_t*)m_pBuffer)[i] = color; - } - for (int row = 1; row < m_Height; row++) { - memcpy(m_pBuffer + row * m_Pitch, m_pBuffer, m_Pitch); - } + for (int i = 0; i < m_Width; i++) + reinterpret_cast(pBuffer)[i] = color; + for (int row = 1; row < m_Height; row++) + memcpy(pBuffer + row * m_Pitch, pBuffer, m_Pitch); break; } default: @@ -206,7 +197,7 @@ bool CFX_DIBitmap::TransferBitmap( if (dest_format == src_format) { if (GetBPP() == 1) { for (int row = 0; row < height; row++) { - uint8_t* dest_scan = m_pBuffer + (dest_top + row) * m_Pitch; + uint8_t* dest_scan = m_pBuffer.Get() + (dest_top + row) * m_Pitch; const uint8_t* src_scan = pSrcBitmap->GetScanline(src_top + row); for (int col = 0; col < width; col++) { if (src_scan[(src_left + col) / 8] & @@ -223,7 +214,7 @@ bool CFX_DIBitmap::TransferBitmap( int Bpp = GetBPP() / 8; for (int row = 0; row < height; row++) { uint8_t* dest_scan = - m_pBuffer + (dest_top + row) * m_Pitch + dest_left * Bpp; + m_pBuffer.Get() + (dest_top + row) * m_Pitch + dest_left * Bpp; const uint8_t* src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * Bpp; memcpy(dest_scan, src_scan, width * Bpp); @@ -237,7 +228,7 @@ bool CFX_DIBitmap::TransferBitmap( dest_format = FXDIB_8bppMask; uint8_t* dest_buf = - m_pBuffer + dest_top * m_Pitch + dest_left * GetBPP() / 8; + m_pBuffer.Get() + dest_top * m_Pitch + dest_left * GetBPP() / 8; std::unique_ptr d_plt; if (!ConvertBuffer(dest_format, dest_buf, m_Pitch, width, height, pSrcBitmap, src_left, src_top, &d_plt)) { @@ -257,19 +248,19 @@ bool CFX_DIBitmap::TransferMask(int dest_left, int src_top, int alpha_flag, void* pIccTransform) { - if (!m_pBuffer) { + if (!m_pBuffer) return false; - } + ASSERT(HasAlpha() && (m_bpp >= 24)); ASSERT(pMask->IsAlphaMask()); - if (!HasAlpha() || !pMask->IsAlphaMask() || m_bpp < 24) { + if (!HasAlpha() || !pMask->IsAlphaMask() || m_bpp < 24) return false; - } + GetOverlapRect(dest_left, dest_top, width, height, pMask->GetWidth(), pMask->GetHeight(), src_left, src_top, nullptr); - if (width == 0 || height == 0) { + if (width == 0 || height == 0) return true; - } + int src_bpp = pMask->GetBPP(); int alpha; uint32_t dst_color; @@ -300,8 +291,8 @@ bool CFX_DIBitmap::TransferMask(int dest_left, } if (GetFormat() == FXDIB_Argb) { for (int row = 0; row < height; row++) { - uint32_t* dest_pos = - (uint32_t*)(m_pBuffer + (dest_top + row) * m_Pitch + dest_left * 4); + uint32_t* dest_pos = reinterpret_cast( + m_pBuffer.Get() + (dest_top + row) * m_Pitch + dest_left * 4); const uint8_t* src_scan = pMask->GetScanline(src_top + row); if (src_bpp == 1) { for (int col = 0; col < width; col++) { @@ -327,9 +318,10 @@ bool CFX_DIBitmap::TransferMask(int dest_left, int comps = m_bpp / 8; for (int row = 0; row < height; row++) { uint8_t* dest_color_pos = - m_pBuffer + (dest_top + row) * m_Pitch + dest_left * comps; + m_pBuffer.Get() + (dest_top + row) * m_Pitch + dest_left * comps; uint8_t* dest_alpha_pos = - (uint8_t*)m_pAlphaMask->GetScanline(dest_top + row) + dest_left; + const_cast(m_pAlphaMask->GetScanline(dest_top + row)) + + dest_left; const uint8_t* src_scan = pMask->GetScanline(src_top + row); if (src_bpp == 1) { for (int col = 0; col < width; col++) { @@ -464,9 +456,9 @@ bool CFX_DIBitmap::LoadChannel(FXDIB_Channel destChannel, } bool CFX_DIBitmap::LoadChannel(FXDIB_Channel destChannel, int value) { - if (!m_pBuffer) { + if (!m_pBuffer) return false; - } + int destOffset; if (destChannel == FXDIB_Alpha) { if (IsAlphaMask()) { @@ -504,7 +496,7 @@ bool CFX_DIBitmap::LoadChannel(FXDIB_Channel destChannel, int value) { } int Bpp = GetBPP() / 8; if (Bpp == 1) { - memset(m_pBuffer, value, m_Height * m_Pitch); + memset(m_pBuffer.Get(), value, m_Height * m_Pitch); return true; } if (destChannel == FXDIB_Alpha && m_pAlphaMask) { @@ -513,7 +505,7 @@ bool CFX_DIBitmap::LoadChannel(FXDIB_Channel destChannel, int value) { return true; } for (int row = 0; row < m_Height; row++) { - uint8_t* scan_line = m_pBuffer + row * m_Pitch + destOffset; + uint8_t* scan_line = m_pBuffer.Get() + row * m_Pitch + destOffset; for (int col = 0; col < m_Width; col++) { *scan_line = value; scan_line += Bpp; @@ -546,8 +538,8 @@ bool CFX_DIBitmap::MultiplyAlpha( return false; for (int row = 0; row < m_Height; row++) { - uint8_t* dest_scan = m_pBuffer + m_Pitch * row; - uint8_t* src_scan = pSrcClone->m_pBuffer + pSrcClone->m_Pitch * row; + uint8_t* dest_scan = m_pBuffer.Get() + m_Pitch * row; + uint8_t* src_scan = pSrcClone->m_pBuffer.Get() + pSrcClone->m_Pitch * row; if (pSrcClone->GetBPP() == 1) { for (int col = 0; col < m_Width; col++) { if (!((1 << (7 - col % 8)) & src_scan[col / 8])) @@ -566,8 +558,9 @@ bool CFX_DIBitmap::MultiplyAlpha( return false; for (int row = 0; row < m_Height; row++) { - uint8_t* dest_scan = m_pBuffer + m_Pitch * row + 3; - uint8_t* src_scan = pSrcClone->m_pBuffer + pSrcClone->m_Pitch * row; + uint8_t* dest_scan = m_pBuffer.Get() + m_Pitch * row + 3; + uint8_t* src_scan = + pSrcClone->m_pBuffer.Get() + pSrcClone->m_Pitch * row; for (int col = 0; col < m_Width; col++) { *dest_scan = (*dest_scan) * src_scan[col] / 255; dest_scan += 4; @@ -581,9 +574,9 @@ bool CFX_DIBitmap::MultiplyAlpha( } bool CFX_DIBitmap::GetGrayData(void* pIccTransform) { - if (!m_pBuffer) { + if (!m_pBuffer) return false; - } + switch (GetFormat()) { case FXDIB_1bppRgb: { if (!m_pPalette) @@ -602,12 +595,11 @@ bool CFX_DIBitmap::GetGrayData(void* pIccTransform) { memset(pMask->GetBuffer(), gray[0], pMask->GetPitch() * m_Height); for (int row = 0; row < m_Height; row++) { - uint8_t* src_pos = m_pBuffer + row * m_Pitch; - uint8_t* dest_pos = (uint8_t*)pMask->GetScanline(row); + uint8_t* src_pos = m_pBuffer.Get() + row * m_Pitch; + uint8_t* dest_pos = const_cast(pMask->GetScanline(row)); for (int col = 0; col < m_Width; col++) { - if (src_pos[col / 8] & (1 << (7 - col % 8))) { + if (src_pos[col / 8] & (1 << (7 - col % 8))) *dest_pos = gray[1]; - } dest_pos++; } } @@ -631,10 +623,9 @@ bool CFX_DIBitmap::GetGrayData(void* pIccTransform) { for (int row = 0; row < m_Height; row++) { uint8_t* dest_pos = pMask->GetBuffer() + row * pMask->GetPitch(); - uint8_t* src_pos = m_pBuffer + row * m_Pitch; - for (int col = 0; col < m_Width; col++) { + uint8_t* src_pos = m_pBuffer.Get() + row * m_Pitch; + for (int col = 0; col < m_Width; col++) *dest_pos++ = gray[*src_pos++]; - } } TakeOver(std::move(pMask)); break; @@ -645,7 +636,7 @@ bool CFX_DIBitmap::GetGrayData(void* pIccTransform) { return false; for (int row = 0; row < m_Height; row++) { - uint8_t* src_pos = m_pBuffer + row * m_Pitch; + uint8_t* src_pos = m_pBuffer.Get() + row * m_Pitch; uint8_t* dest_pos = pMask->GetBuffer() + row * pMask->GetPitch(); for (int col = 0; col < m_Width; col++) { *dest_pos++ = FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos); @@ -661,7 +652,7 @@ bool CFX_DIBitmap::GetGrayData(void* pIccTransform) { return false; for (int row = 0; row < m_Height; row++) { - uint8_t* src_pos = m_pBuffer + row * m_Pitch; + uint8_t* src_pos = m_pBuffer.Get() + row * m_Pitch; uint8_t* dest_pos = pMask->GetBuffer() + row * pMask->GetPitch(); for (int col = 0; col < m_Width; col++) { *dest_pos++ = FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos); @@ -678,9 +669,9 @@ bool CFX_DIBitmap::GetGrayData(void* pIccTransform) { } bool CFX_DIBitmap::MultiplyAlpha(int alpha) { - if (!m_pBuffer) { + if (!m_pBuffer) return false; - } + switch (GetFormat()) { case FXDIB_1bppMask: if (!ConvertFormat(FXDIB_8bppMask)) { @@ -690,7 +681,7 @@ bool CFX_DIBitmap::MultiplyAlpha(int alpha) { break; case FXDIB_8bppMask: { for (int row = 0; row < m_Height; row++) { - uint8_t* scan_line = m_pBuffer + row * m_Pitch; + uint8_t* scan_line = m_pBuffer.Get() + row * m_Pitch; for (int col = 0; col < m_Width; col++) { scan_line[col] = scan_line[col] * alpha / 255; } @@ -699,7 +690,7 @@ bool CFX_DIBitmap::MultiplyAlpha(int alpha) { } case FXDIB_Argb: { for (int row = 0; row < m_Height; row++) { - uint8_t* scan_line = m_pBuffer + row * m_Pitch + 3; + uint8_t* scan_line = m_pBuffer.Get() + row * m_Pitch + 3; for (int col = 0; col < m_Width; col++) { *scan_line = (*scan_line) * alpha / 255; scan_line += 4; @@ -727,10 +718,10 @@ bool CFX_DIBitmap::MultiplyAlpha(int alpha) { } uint32_t CFX_DIBitmap::GetPixel(int x, int y) const { - if (!m_pBuffer) { + if (!m_pBuffer) return 0; - } - uint8_t* pos = m_pBuffer + y * m_Pitch + x * GetBPP() / 8; + + uint8_t* pos = m_pBuffer.Get() + y * m_Pitch + x * GetBPP() / 8; switch (GetFormat()) { case FXDIB_1bppMask: { if ((*pos) & (1 << (7 - x % 8))) { @@ -762,13 +753,13 @@ uint32_t CFX_DIBitmap::GetPixel(int x, int y) const { } void CFX_DIBitmap::SetPixel(int x, int y, uint32_t color) { - if (!m_pBuffer) { + if (!m_pBuffer) return; - } - if (x < 0 || x >= m_Width || y < 0 || y >= m_Height) { + + if (x < 0 || x >= m_Width || y < 0 || y >= m_Height) return; - } - uint8_t* pos = m_pBuffer + y * m_Pitch + x * GetBPP() / 8; + + uint8_t* pos = m_pBuffer.Get() + y * m_Pitch + x * GetBPP() / 8; switch (GetFormat()) { case FXDIB_1bppMask: if (color >> 24) { @@ -838,11 +829,11 @@ void CFX_DIBitmap::DownSampleScanline(int line, bool bFlipX, int clip_left, int clip_width) const { - if (!m_pBuffer) { + if (!m_pBuffer) return; - } + int src_Bpp = m_bpp / 8; - uint8_t* scanline = m_pBuffer + line * m_Pitch; + uint8_t* scanline = m_pBuffer.Get() + line * m_Pitch; if (src_Bpp == 0) { for (int i = 0; i < clip_width; i++) { uint32_t dest_x = clip_left + i; @@ -900,9 +891,9 @@ void CFX_DIBitmap::DownSampleScanline(int line, // colors separately. bool CFX_DIBitmap::ConvertColorScale(uint32_t forecolor, uint32_t backcolor) { ASSERT(!IsAlphaMask()); - if (!m_pBuffer || IsAlphaMask()) { + if (!m_pBuffer || IsAlphaMask()) return false; - } + // Values used for CMYK colors. int fc = 0; int fm = 0; @@ -976,7 +967,7 @@ bool CFX_DIBitmap::ConvertColorScale(uint32_t forecolor, uint32_t backcolor) { if (isCmykImage) { if (forecolor == 0xff && backcolor == 0x00) { for (int row = 0; row < m_Height; row++) { - uint8_t* scanline = m_pBuffer + row * m_Pitch; + uint8_t* scanline = m_pBuffer.Get() + row * m_Pitch; for (int col = 0; col < m_Width; col++) { uint8_t b, g, r; AdobeCMYK_to_sRGB1(scanline[0], scanline[1], scanline[2], scanline[3], @@ -991,7 +982,7 @@ bool CFX_DIBitmap::ConvertColorScale(uint32_t forecolor, uint32_t backcolor) { } } else if (forecolor == 0 && backcolor == 0xffffff) { for (int row = 0; row < m_Height; row++) { - uint8_t* scanline = m_pBuffer + row * m_Pitch; + uint8_t* scanline = m_pBuffer.Get() + row * m_Pitch; int gap = m_bpp / 8 - 2; for (int col = 0; col < m_Width; col++) { int gray = FXRGB2GRAY(scanline[2], scanline[1], scanline[0]); @@ -1005,7 +996,7 @@ bool CFX_DIBitmap::ConvertColorScale(uint32_t forecolor, uint32_t backcolor) { } if (isCmykImage) { for (int row = 0; row < m_Height; row++) { - uint8_t* scanline = m_pBuffer + row * m_Pitch; + uint8_t* scanline = m_pBuffer.Get() + row * m_Pitch; for (int col = 0; col < m_Width; col++) { uint8_t b, g, r; AdobeCMYK_to_sRGB1(scanline[0], scanline[1], scanline[2], scanline[3], @@ -1019,7 +1010,7 @@ bool CFX_DIBitmap::ConvertColorScale(uint32_t forecolor, uint32_t backcolor) { } } else { for (int row = 0; row < m_Height; row++) { - uint8_t* scanline = m_pBuffer + row * m_Pitch; + uint8_t* scanline = m_pBuffer.Get() + row * m_Pitch; int gap = m_bpp / 8 - 2; for (int col = 0; col < m_Width; col++) { int gray = FXRGB2GRAY(scanline[2], scanline[1], scanline[0]); @@ -1045,9 +1036,9 @@ bool CFX_DIBitmap::CompositeBitmap( const CFX_ClipRgn* pClipRgn, bool bRgbByteOrder, void* pIccTransform) { - if (!m_pBuffer) { + if (!m_pBuffer) return false; - } + ASSERT(!pSrcBitmap->IsAlphaMask()); ASSERT(m_bpp >= 8); if (pSrcBitmap->IsAlphaMask() || m_bpp < 8) { @@ -1077,7 +1068,7 @@ bool CFX_DIBitmap::CompositeBitmap( CFX_RetainPtr pSrcAlphaMask = pSrcBitmap->m_pAlphaMask; for (int row = 0; row < height; row++) { uint8_t* dest_scan = - m_pBuffer + (dest_top + row) * m_Pitch + dest_left * dest_Bpp; + m_pBuffer.Get() + (dest_top + row) * m_Pitch + dest_left * dest_Bpp; const uint8_t* src_scan = pSrcBitmap->GetScanline(src_top + row) + src_left * src_Bpp; const uint8_t* src_scan_extra_alpha = @@ -1089,7 +1080,7 @@ bool CFX_DIBitmap::CompositeBitmap( : nullptr; const uint8_t* clip_scan = nullptr; if (pClipMask) { - clip_scan = pClipMask->m_pBuffer + + clip_scan = pClipMask->m_pBuffer.Get() + (dest_top + row - clip_box.top) * pClipMask->m_Pitch + (dest_left - clip_box.left); } @@ -1119,24 +1110,24 @@ bool CFX_DIBitmap::CompositeMask(int dest_left, bool bRgbByteOrder, int alpha_flag, void* pIccTransform) { - if (!m_pBuffer) { + if (!m_pBuffer) return false; - } + ASSERT(pMask->IsAlphaMask()); ASSERT(m_bpp >= 8); - if (!pMask->IsAlphaMask() || m_bpp < 8) { + if (!pMask->IsAlphaMask() || m_bpp < 8) return false; - } + GetOverlapRect(dest_left, dest_top, width, height, pMask->GetWidth(), pMask->GetHeight(), src_left, src_top, pClipRgn); - if (width == 0 || height == 0) { + if (width == 0 || height == 0) return true; - } + int src_alpha = (uint8_t)(alpha_flag >> 8) ? (alpha_flag & 0xff) : FXARGB_A(color); - if (src_alpha == 0) { + if (src_alpha == 0) return true; - } + CFX_RetainPtr pClipMask; FX_RECT clip_box; if (pClipRgn && pClipRgn->GetType() != CFX_ClipRgn::RectI) { @@ -1154,7 +1145,7 @@ bool CFX_DIBitmap::CompositeMask(int dest_left, } for (int row = 0; row < height; row++) { uint8_t* dest_scan = - m_pBuffer + (dest_top + row) * m_Pitch + dest_left * Bpp; + m_pBuffer.Get() + (dest_top + row) * m_Pitch + dest_left * Bpp; const uint8_t* src_scan = pMask->GetScanline(src_top + row); uint8_t* dst_scan_extra_alpha = m_pAlphaMask @@ -1162,7 +1153,7 @@ bool CFX_DIBitmap::CompositeMask(int dest_left, : nullptr; const uint8_t* clip_scan = nullptr; if (pClipMask) { - clip_scan = pClipMask->m_pBuffer + + clip_scan = pClipMask->m_pBuffer.Get() + (dest_top + row - clip_box.top) * pClipMask->m_Pitch + (dest_left - clip_box.left); } @@ -1184,25 +1175,24 @@ bool CFX_DIBitmap::CompositeRect(int left, uint32_t color, int alpha_flag, void* pIccTransform) { - if (!m_pBuffer) { + if (!m_pBuffer) return false; - } + int src_alpha = (alpha_flag >> 8) ? (alpha_flag & 0xff) : FXARGB_A(color); - if (src_alpha == 0) { + if (src_alpha == 0) return true; - } + FX_RECT rect(left, top, left + width, top + height); rect.Intersect(0, 0, m_Width, m_Height); - if (rect.IsEmpty()) { + if (rect.IsEmpty()) return true; - } + width = rect.Width(); uint32_t dst_color; - if (alpha_flag >> 8) { + if (alpha_flag >> 8) dst_color = FXCMYK_TODIB(color); - } else { + else dst_color = FXARGB_TODIB(color); - } uint8_t* color_p = (uint8_t*)&dst_color; if (m_bpp == 8) { uint8_t gray = 255; @@ -1227,7 +1217,7 @@ bool CFX_DIBitmap::CompositeRect(int left, } } for (int row = rect.top; row < rect.bottom; row++) { - uint8_t* dest_scan = m_pBuffer + row * m_Pitch + rect.left; + uint8_t* dest_scan = m_pBuffer.Get() + row * m_Pitch + rect.left; if (src_alpha == 255) { memset(dest_scan, gray, width); } else { @@ -1304,7 +1294,7 @@ bool CFX_DIBitmap::CompositeRect(int left, bool bArgb = GetFormat() == FXDIB_Argb; if (src_alpha == 255) { for (int row = rect.top; row < rect.bottom; row++) { - uint8_t* dest_scan = m_pBuffer + row * m_Pitch + rect.left * Bpp; + uint8_t* dest_scan = m_pBuffer.Get() + row * m_Pitch + rect.left * Bpp; uint8_t* dest_scan_alpha = m_pAlphaMask ? (uint8_t*)m_pAlphaMask->GetScanline(row) + rect.left : nullptr; @@ -1327,7 +1317,7 @@ bool CFX_DIBitmap::CompositeRect(int left, return true; } for (int row = rect.top; row < rect.bottom; row++) { - uint8_t* dest_scan = m_pBuffer + row * m_Pitch + rect.left * Bpp; + uint8_t* dest_scan = m_pBuffer.Get() + row * m_Pitch + rect.left * Bpp; if (bAlpha) { if (bArgb) { for (int col = 0; col < width; col++) { @@ -1400,7 +1390,7 @@ bool CFX_DIBitmap::ConvertFormat(FXDIB_Format dest_format) { if (dest_format == FXDIB_Argb && src_format == FXDIB_Rgb32) { m_AlphaFlag = 2; for (int row = 0; row < m_Height; row++) { - uint8_t* scanline = m_pBuffer + row * m_Pitch + 3; + uint8_t* scanline = m_pBuffer.Get() + row * m_Pitch + 3; for (int col = 0; col < m_Width; col++) { *scanline = 0xff; scanline += 4; @@ -1410,16 +1400,17 @@ bool CFX_DIBitmap::ConvertFormat(FXDIB_Format dest_format) { } int dest_bpp = dest_format & 0xff; int dest_pitch = (dest_bpp * m_Width + 31) / 32 * 4; - uint8_t* dest_buf = FX_TryAlloc(uint8_t, dest_pitch * m_Height + 4); - if (!dest_buf) { + std::unique_ptr dest_buf( + FX_TryAlloc(uint8_t, dest_pitch * m_Height + 4)); + if (!dest_buf) return false; - } + CFX_RetainPtr pAlphaMask; if (dest_format == FXDIB_Argb) { - memset(dest_buf, 0xff, dest_pitch * m_Height + 4); + memset(dest_buf.get(), 0xff, dest_pitch * m_Height + 4); if (m_pAlphaMask) { for (int row = 0; row < m_Height; row++) { - uint8_t* pDstScanline = dest_buf + row * dest_pitch + 3; + uint8_t* pDstScanline = dest_buf.get() + row * dest_pitch + 3; const uint8_t* pSrcScanline = m_pAlphaMask->GetScanline(row); for (int col = 0; col < m_Width; col++) { *pDstScanline = *pSrcScanline++; @@ -1430,16 +1421,12 @@ bool CFX_DIBitmap::ConvertFormat(FXDIB_Format dest_format) { } else if (dest_format & 0x0200) { if (src_format == FXDIB_Argb) { pAlphaMask = CloneAlphaMask(); - if (!pAlphaMask) { - FX_Free(dest_buf); + if (!pAlphaMask) return false; - } } else { if (!m_pAlphaMask) { - if (!BuildAlphaMask()) { - FX_Free(dest_buf); + if (!BuildAlphaMask()) return false; - } pAlphaMask = std::move(m_pAlphaMask); } else { pAlphaMask = m_pAlphaMask; @@ -1449,20 +1436,16 @@ bool CFX_DIBitmap::ConvertFormat(FXDIB_Format dest_format) { bool ret = false; CFX_RetainPtr holder(this); std::unique_ptr pal_8bpp; - ret = ConvertBuffer(dest_format, dest_buf, dest_pitch, m_Width, m_Height, - holder, 0, 0, &pal_8bpp); - if (!ret) { - FX_Free(dest_buf); + ret = ConvertBuffer(dest_format, dest_buf.get(), dest_pitch, m_Width, + m_Height, holder, 0, 0, &pal_8bpp); + if (!ret) return false; - } + m_pAlphaMask = pAlphaMask; m_pPalette = std::move(pal_8bpp); - if (!m_bExtBuf) - FX_Free(m_pBuffer); - m_bExtBuf = false; - m_pBuffer = dest_buf; - m_bpp = (uint8_t)dest_format; - m_AlphaFlag = (uint8_t)(dest_format >> 8); + m_pBuffer = std::move(dest_buf); + m_bpp = static_cast(dest_format); + m_AlphaFlag = static_cast(dest_format >> 8); m_Pitch = dest_pitch; return true; } diff --git a/core/fxge/dib/cfx_dibitmap.h b/core/fxge/dib/cfx_dibitmap.h index 9cb46afb53..87688a1ade 100644 --- a/core/fxge/dib/cfx_dibitmap.h +++ b/core/fxge/dib/cfx_dibitmap.h @@ -7,6 +7,7 @@ #ifndef CORE_FXGE_DIB_CFX_DIBITMAP_H_ #define CORE_FXGE_DIB_CFX_DIBITMAP_H_ +#include "core/fxcrt/cfx_maybe_owned.h" #include "core/fxcrt/cfx_retain_ptr.h" #include "core/fxcrt/fx_basic.h" #include "core/fxcrt/fx_coordinates.h" @@ -119,17 +120,16 @@ class CFX_DIBitmap : public CFX_DIBSource { protected: CFX_DIBitmap(); CFX_DIBitmap(const CFX_DIBitmap& src); - bool GetGrayData(void* pIccTransform = nullptr); + bool GetGrayData(void* pIccTransform = nullptr); #if defined _SKIA_SUPPORT_PATHS_ enum class Format { kCleared, kPreMultiplied, kUnPreMultiplied }; #endif - uint8_t* m_pBuffer; + CFX_MaybeOwned m_pBuffer; #if defined _SKIA_SUPPORT_PATHS_ Format m_nFormat; #endif - bool m_bExtBuf; }; #endif // CORE_FXGE_DIB_CFX_DIBITMAP_H_ -- cgit v1.2.3