diff options
Diffstat (limited to 'core/fpdfapi/render/cpdf_dibsource.cpp')
| -rw-r--r-- | core/fpdfapi/render/cpdf_dibsource.cpp | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/core/fpdfapi/render/cpdf_dibsource.cpp b/core/fpdfapi/render/cpdf_dibsource.cpp index 27f59c05f1..899a783c47 100644 --- a/core/fpdfapi/render/cpdf_dibsource.cpp +++ b/core/fpdfapi/render/cpdf_dibsource.cpp @@ -795,7 +795,8 @@ void CPDF_DIBSource::LoadPalette() { m_bpc == 8 && m_bDefaultDecode) { } else { int palette_count = 1 << (m_bpc * m_nComponents); - std::vector<float> color_value(std::max(16U, m_nComponents)); + CFX_FixedBufGrow<float, 16> color_values(m_nComponents); + float* color_value = color_values; for (int i = 0; i < palette_count; i++) { int color_data = i; for (uint32_t j = 0; j < m_nComponents; j++) { @@ -810,11 +811,11 @@ void CPDF_DIBSource::LoadPalette() { int nComponents = m_pColorSpace->CountComponents(); std::vector<float> temp_buf(nComponents); for (int k = 0; k < nComponents; k++) { - temp_buf[k] = color_value[0]; + temp_buf[k] = *color_value; } m_pColorSpace->GetRGB(temp_buf.data(), &R, &G, &B); } else { - m_pColorSpace->GetRGB(color_value.data(), &R, &G, &B); + m_pColorSpace->GetRGB(color_value, &R, &G, &B); } SetPaletteArgb(i, ArgbEncode(255, FXSYS_round(R * 255), FXSYS_round(G * 255), FXSYS_round(B * 255))); @@ -914,7 +915,8 @@ void CPDF_DIBSource::TranslateScanline24bpp(uint8_t* dest_scan, } } - std::vector<float> color_values(std::max(16U, m_nComponents)); + CFX_FixedBufGrow<float, 16> color_values1(m_nComponents); + float* color_values = color_values1; float R = 0.0f; float G = 0.0f; float B = 0.0f; @@ -933,7 +935,7 @@ void CPDF_DIBSource::TranslateScanline24bpp(uint8_t* dest_scan, G = (1.0f - color_values[1]) * k; B = (1.0f - color_values[2]) * k; } else { - m_pColorSpace->GetRGB(color_values.data(), &R, &G, &B); + m_pColorSpace->GetRGB(color_values, &R, &G, &B); } R = ClampValue(R, 1.0f); G = ClampValue(G, 1.0f); @@ -959,7 +961,7 @@ void CPDF_DIBSource::TranslateScanline24bpp(uint8_t* dest_scan, G = (1.0f - color_values[1]) * k; B = (1.0f - color_values[2]) * k; } else { - m_pColorSpace->GetRGB(color_values.data(), &R, &G, &B); + m_pColorSpace->GetRGB(color_values, &R, &G, &B); } R = ClampValue(R, 1.0f); G = ClampValue(G, 1.0f); @@ -1342,7 +1344,7 @@ void CPDF_DIBSource::DownSampleScanline32Bit(int orig_Bpp, if (src_x == last_src_x) { argb = last_argb; } else { - std::vector<uint8_t> extracted_components(std::max(128U, m_nComponents)); + CFX_FixedBufGrow<uint8_t, 128> extracted_components(m_nComponents); const uint8_t* pSrcPixel = nullptr; if (m_bpc % 8 != 0) { // No need to check for 32-bit overflow, as |src_x| is bounded by @@ -1356,13 +1358,13 @@ void CPDF_DIBSource::DownSampleScanline32Bit(int orig_Bpp, GetBits8(pSrcPixel, src_bit_pos, m_bpc) * unit_To8Bpc); src_bit_pos += m_bpc; } - pSrcPixel = extracted_components.data(); + pSrcPixel = extracted_components; } else { pSrcPixel = pSrcLine + src_x * orig_Bpp; if (m_bpc == 16) { for (uint32_t j = 0; j < m_nComponents; ++j) extracted_components[j] = pSrcPixel[j * 2]; - pSrcPixel = extracted_components.data(); + pSrcPixel = extracted_components; } } @@ -1383,8 +1385,8 @@ void CPDF_DIBSource::DownSampleScanline32Bit(int orig_Bpp, extracted_components[j] = color_value > 255 ? 255 : (color_value < 0 ? 0 : color_value); } - m_pColorSpace->TranslateImageLine(color, extracted_components.data(), - 1, 0, 0, bTransMask); + m_pColorSpace->TranslateImageLine(color, extracted_components, 1, 0, + 0, bTransMask); } argb = FXARGB_MAKE(0xFF, color[2], color[1], color[0]); } else { |