Revert 'Remove almost all usages of CFX_FixedBufGrow with std::vector'
This is a manual revert of the CL at:
https://pdfium-review.googlesource.com/c/pdfium/+/32159
The only file manually changed was cpdf_renderstatus.cpp
Reason for revert: the bug below shows that sometimes the vector size
used is larger than the parameter given to CFX_FixedBufGrow. Thus, we
will revert, then add vectors using std::max unless it's clear from the
code that the code will never access indices outside.
Bug: chromium:847247
Change-Id: Iee54af023c8564824418a7d34a6385b0bc418ff0
Reviewed-on: https://pdfium-review.googlesource.com/33050
Reviewed-by: dsinclair <dsinclair@chromium.org>
Commit-Queue: Nicolás Peña Moreno <npm@chromium.org>
diff --git a/core/fpdfapi/page/cpdf_colorspace.cpp b/core/fpdfapi/page/cpdf_colorspace.cpp
index 354a342..31c485f 100644
--- a/core/fpdfapi/page/cpdf_colorspace.cpp
+++ b/core/fpdfapi/page/cpdf_colorspace.cpp
@@ -31,6 +31,7 @@
#include "core/fpdfdoc/cpdf_action.h"
#include "core/fxcodec/codec/ccodec_iccmodule.h"
#include "core/fxcodec/fx_codec.h"
+#include "core/fxcrt/cfx_fixedbufgrow.h"
#include "core/fxcrt/fx_memory.h"
#include "core/fxcrt/maybe_owned.h"
#include "third_party/base/stl_util.h"
@@ -573,7 +574,8 @@
int image_width,
int image_height,
bool bTransMask) const {
- std::vector<float> src(m_nComponents);
+ CFX_FixedBufGrow<float, 16> srcbuf(m_nComponents);
+ float* src = srcbuf;
float R;
float G;
float B;
@@ -581,7 +583,7 @@
for (int i = 0; i < pixels; i++) {
for (uint32_t j = 0; j < m_nComponents; j++)
src[j] = static_cast<float>(*src_buf++) / divisor;
- GetRGB(src.data(), &R, &G, &B);
+ GetRGB(src, &R, &G, &B);
*dest_buf++ = static_cast<int32_t>(B * 255);
*dest_buf++ = static_cast<int32_t>(G * 255);
*dest_buf++ = static_cast<int32_t>(R * 255);
@@ -1151,15 +1153,15 @@
return false;
}
}
- std::vector<float> comps;
- comps.reserve(m_nBaseComponents);
+ CFX_FixedBufGrow<float, 16> Comps(m_nBaseComponents);
+ float* comps = Comps;
const uint8_t* pTable = m_Table.raw_str();
for (uint32_t i = 0; i < m_nBaseComponents; i++) {
- comps.push_back(m_pCompMinMax[i * 2] +
- m_pCompMinMax[i * 2 + 1] *
- pTable[index * m_nBaseComponents + i] / 255);
+ comps[i] =
+ m_pCompMinMax[i * 2] +
+ m_pCompMinMax[i * 2 + 1] * pTable[index * m_nBaseComponents + i] / 255;
}
- return m_pBaseCS->GetRGB(comps.data(), R, G, B);
+ return m_pBaseCS->GetRGB(comps, R, G, B);
}
void CPDF_IndexedCS::EnableStdConversion(bool bEnabled) {
@@ -1216,21 +1218,32 @@
float* R,
float* G,
float* B) const {
- if (m_Type == None || !m_pAltCS)
+ if (m_Type == None)
return false;
if (!m_pFunc) {
+ if (!m_pAltCS)
+ return false;
+
int nComps = m_pAltCS->CountComponents();
- std::vector<float> results(nComps, *pBuf);
- return m_pAltCS->GetRGB(results.data(), R, G, B);
+ CFX_FixedBufGrow<float, 16> results(nComps);
+ for (int i = 0; i < nComps; i++)
+ results[i] = *pBuf;
+ return m_pAltCS->GetRGB(results, R, G, B);
}
- std::vector<float> results2(m_pFunc->CountOutputs());
+ CFX_FixedBufGrow<float, 16> results(m_pFunc->CountOutputs());
int nresults = 0;
- if (!m_pFunc->Call(pBuf, 1, results2.data(), &nresults) || nresults == 0)
+ if (!m_pFunc->Call(pBuf, 1, results, &nresults) || nresults == 0)
return false;
- return m_pAltCS->GetRGB(results2.data(), R, G, B);
+ if (m_pAltCS)
+ return m_pAltCS->GetRGB(results, R, G, B);
+
+ R = 0;
+ G = 0;
+ B = 0;
+ return false;
}
void CPDF_SeparationCS::EnableStdConversion(bool bEnabled) {
@@ -1285,14 +1298,14 @@
if (!m_pFunc)
return false;
- std::vector<float> results(m_pFunc->CountOutputs());
+ CFX_FixedBufGrow<float, 16> results(m_pFunc->CountOutputs());
int nresults = 0;
- if (!m_pFunc->Call(pBuf, CountComponents(), results.data(), &nresults) ||
+ if (!m_pFunc->Call(pBuf, CountComponents(), results, &nresults) ||
nresults == 0) {
return false;
}
- return m_pAltCS->GetRGB(results.data(), R, G, B);
+ return m_pAltCS->GetRGB(results, R, G, B);
}
void CPDF_DeviceNCS::EnableStdConversion(bool bEnabled) {
diff --git a/core/fpdfapi/render/cpdf_dibsource.cpp b/core/fpdfapi/render/cpdf_dibsource.cpp
index ad828f2..4241fb1 100644
--- a/core/fpdfapi/render/cpdf_dibsource.cpp
+++ b/core/fpdfapi/render/cpdf_dibsource.cpp
@@ -761,7 +761,8 @@
}
int palette_count = 1 << (m_bpc * m_nComponents);
- std::vector<float> color_value(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++) {
@@ -778,11 +779,11 @@
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)));
@@ -830,7 +831,8 @@
if (TranslateScanline24bppDefaultDecode(dest_scan, src_scan))
return;
- std::vector<float> color_values(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;
@@ -858,7 +860,7 @@
G = (1.0f - color_values[1]) * k;
B = (1.0f - color_values[2]) * k;
} else if (m_Family != PDFCS_PATTERN) {
- m_pColorSpace->GetRGB(color_values.data(), &R, &G, &B);
+ m_pColorSpace->GetRGB(color_values, &R, &G, &B);
}
R = pdfium::clamp(R, 0.0f, 1.0f);
G = pdfium::clamp(G, 0.0f, 1.0f);
diff --git a/core/fpdfapi/render/cpdf_renderstatus.cpp b/core/fpdfapi/render/cpdf_renderstatus.cpp
index 8c3c879..f99000b 100644
--- a/core/fpdfapi/render/cpdf_renderstatus.cpp
+++ b/core/fpdfapi/render/cpdf_renderstatus.cpp
@@ -49,6 +49,7 @@
#include "core/fpdfapi/render/cpdf_type3cache.h"
#include "core/fpdfdoc/cpdf_occontext.h"
#include "core/fxcrt/autorestorer.h"
+#include "core/fxcrt/cfx_fixedbufgrow.h"
#include "core/fxcrt/fx_safe_types.h"
#include "core/fxcrt/maybe_owned.h"
#include "core/fxge/cfx_defaultrenderdevice.h"
@@ -151,7 +152,9 @@
float y_span = end_y - start_y;
float axis_len_square = (x_span * x_span) + (y_span * y_span);
- std::vector<float> results(total_results);
+ CFX_FixedBufGrow<float, 16> result_array(total_results);
+ float* pResults = result_array;
+ memset(pResults, 0, total_results * sizeof(float));
uint32_t rgb_array[kShadingSteps];
for (int i = 0; i < kShadingSteps; i++) {
float input = (t_max - t_min) * i / kShadingSteps + t_min;
@@ -159,14 +162,14 @@
for (const auto& func : funcs) {
if (func) {
int nresults = 0;
- if (func->Call(&input, 1, results.data() + offset, &nresults))
+ if (func->Call(&input, 1, pResults + offset, &nresults))
offset += nresults;
}
}
float R = 0.0f;
float G = 0.0f;
float B = 0.0f;
- pCS->GetRGB(results.data(), &R, &G, &B);
+ pCS->GetRGB(pResults, &R, &G, &B);
rgb_array[i] =
FXARGB_TODIB(FXARGB_MAKE(alpha, FXSYS_round(R * 255),
FXSYS_round(G * 255), FXSYS_round(B * 255)));
@@ -235,7 +238,9 @@
bEndExtend = !!pArray->GetIntegerAt(1);
}
- std::vector<float> results(total_results);
+ CFX_FixedBufGrow<float, 16> result_array(total_results);
+ float* pResults = result_array;
+ memset(pResults, 0, total_results * sizeof(float));
uint32_t rgb_array[kShadingSteps];
for (int i = 0; i < kShadingSteps; i++) {
float input = (t_max - t_min) * i / kShadingSteps + t_min;
@@ -243,14 +248,14 @@
for (const auto& func : funcs) {
if (func) {
int nresults;
- if (func->Call(&input, 1, results.data() + offset, &nresults))
+ if (func->Call(&input, 1, pResults + offset, &nresults))
offset += nresults;
}
}
float R = 0.0f;
float G = 0.0f;
float B = 0.0f;
- pCS->GetRGB(results.data(), &R, &G, &B);
+ pCS->GetRGB(pResults, &R, &G, &B);
rgb_array[i] =
FXARGB_TODIB(FXARGB_MAKE(alpha, FXSYS_round(R * 255),
FXSYS_round(G * 255), FXSYS_round(B * 255)));
@@ -362,7 +367,9 @@
int height = pBitmap->GetHeight();
int pitch = pBitmap->GetPitch();
- std::vector<float> results(total_results);
+ CFX_FixedBufGrow<float, 16> result_array(total_results);
+ float* pResults = result_array;
+ memset(pResults, 0, total_results * sizeof(float));
for (int row = 0; row < height; row++) {
uint32_t* dib_buf = (uint32_t*)(pBitmap->GetBuffer() + row * pitch);
for (int column = 0; column < width; column++) {
@@ -376,7 +383,7 @@
for (const auto& func : funcs) {
if (func) {
int nresults;
- if (func->Call(input, 2, results.data() + offset, &nresults))
+ if (func->Call(input, 2, pResults + offset, &nresults))
offset += nresults;
}
}
@@ -384,7 +391,7 @@
float R = 0.0f;
float G = 0.0f;
float B = 0.0f;
- pCS->GetRGB(results.data(), &R, &G, &B);
+ pCS->GetRGB(pResults, &R, &G, &B);
dib_buf[column] = FXARGB_TODIB(FXARGB_MAKE(
alpha, (int32_t)(R * 255), (int32_t)(G * 255), (int32_t)(B * 255)));
}
@@ -2049,14 +2056,13 @@
const CPDF_Array* pBackColor = pDict->GetArrayFor("Background");
if (pBackColor &&
pBackColor->GetCount() >= pColorSpace->CountComponents()) {
- std::vector<float> comps;
- comps.reserve(pColorSpace->CountComponents());
+ CFX_FixedBufGrow<float, 16> comps(pColorSpace->CountComponents());
for (uint32_t i = 0; i < pColorSpace->CountComponents(); i++)
- comps.push_back(pBackColor->GetNumberAt(i));
+ comps[i] = pBackColor->GetNumberAt(i);
float R = 0.0f;
float G = 0.0f;
float B = 0.0f;
- pColorSpace->GetRGB(comps.data(), &R, &G, &B);
+ pColorSpace->GetRGB(comps, &R, &G, &B);
background = ArgbEncode(255, (int32_t)(R * 255), (int32_t)(G * 255),
(int32_t)(B * 255));
}
@@ -2596,11 +2602,11 @@
int src_pitch = bitmap.GetPitch();
std::vector<uint8_t> transfers(256);
if (pFunc) {
- std::vector<float> results(pFunc->CountOutputs());
+ CFX_FixedBufGrow<float, 16> results(pFunc->CountOutputs());
for (int i = 0; i < 256; i++) {
float input = (float)i / 255.0f;
int nresult;
- pFunc->Call(&input, 1, results.data(), &nresult);
+ pFunc->Call(&input, 1, results, &nresult);
transfers[i] = FXSYS_round(results[0] * 255);
}
} else {
diff --git a/core/fxcodec/codec/fx_codec_icc.cpp b/core/fxcodec/codec/fx_codec_icc.cpp
index 458816e..29b37d1 100644
--- a/core/fxcodec/codec/fx_codec_icc.cpp
+++ b/core/fxcodec/codec/fx_codec_icc.cpp
@@ -5,10 +5,10 @@
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include <memory>
-#include <vector>
#include "core/fxcodec/codec/ccodec_iccmodule.h"
#include "core/fxcodec/codec/codec_int.h"
+#include "core/fxcrt/cfx_fixedbufgrow.h"
namespace {
@@ -124,16 +124,19 @@
uint32_t nSrcComponents = m_nComponents;
uint8_t output[4];
if (pTransform->m_bLab) {
- std::vector<double> input(pSrcValues, pSrcValues + nSrcComponents);
- cmsDoTransform(pTransform->m_hTransform, input.data(), output, 1);
+ CFX_FixedBufGrow<double, 16> inputs(nSrcComponents);
+ double* input = inputs;
+ for (uint32_t i = 0; i < nSrcComponents; ++i)
+ input[i] = pSrcValues[i];
+ cmsDoTransform(pTransform->m_hTransform, input, output, 1);
} else {
- std::vector<uint8_t> input;
- input.reserve(nSrcComponents);
+ CFX_FixedBufGrow<uint8_t, 16> inputs(nSrcComponents);
+ uint8_t* input = inputs;
for (uint32_t i = 0; i < nSrcComponents; ++i) {
- input.push_back(
- pdfium::clamp(static_cast<int>(pSrcValues[i] * 255.0f), 0, 255));
+ input[i] =
+ pdfium::clamp(static_cast<int>(pSrcValues[i] * 255.0f), 0, 255);
}
- cmsDoTransform(pTransform->m_hTransform, input.data(), output, 1);
+ cmsDoTransform(pTransform->m_hTransform, input, output, 1);
}
pDestValues[0] = output[2] / 255.0f;
pDestValues[1] = output[1] / 255.0f;
diff --git a/core/fxge/apple/fx_apple_platform.cpp b/core/fxge/apple/fx_apple_platform.cpp
index 013be8f..1801814 100644
--- a/core/fxge/apple/fx_apple_platform.cpp
+++ b/core/fxge/apple/fx_apple_platform.cpp
@@ -5,8 +5,8 @@
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include <memory>
-#include <vector>
+#include "core/fxcrt/cfx_fixedbufgrow.h"
#include "core/fxcrt/fx_system.h"
#ifndef _SKIA_SUPPORT_
@@ -57,12 +57,11 @@
if (!pFont->GetPlatformFont())
return false;
}
- std::vector<uint16_t> glyph_indices;
- glyph_indices.reserve(nChars);
- std::vector<CGPoint> glyph_positions(nChars);
+ CFX_FixedBufGrow<uint16_t, 32> glyph_indices(nChars);
+ CFX_FixedBufGrow<CGPoint, 32> glyph_positions(nChars);
for (int i = 0; i < nChars; i++) {
- glyph_indices.push_back(pCharPos[i].m_ExtGID ? pCharPos[i].m_ExtGID
- : pCharPos[i].m_GlyphIndex);
+ glyph_indices[i] =
+ pCharPos[i].m_ExtGID ? pCharPos[i].m_ExtGID : pCharPos[i].m_GlyphIndex;
if (bNegSize)
glyph_positions[i].x = -pCharPos[i].m_Origin.x;
else
@@ -77,9 +76,9 @@
new_matrix.d = -new_matrix.d;
}
quartz2d.setGraphicsTextMatrix(pContext, &new_matrix);
- return quartz2d.drawGraphicsString(
- pContext, pFont->GetPlatformFont(), font_size, glyph_indices.data(),
- glyph_positions.data(), nChars, argb, nullptr);
+ return quartz2d.drawGraphicsString(pContext, pFont->GetPlatformFont(),
+ font_size, glyph_indices, glyph_positions,
+ nChars, argb, nullptr);
}
} // namespace
