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path: root/core/fxge/agg/fx_agg_driver.cpp
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Diffstat (limited to 'core/fxge/agg/fx_agg_driver.cpp')
-rw-r--r--core/fxge/agg/fx_agg_driver.cpp114
1 files changed, 60 insertions, 54 deletions
diff --git a/core/fxge/agg/fx_agg_driver.cpp b/core/fxge/agg/fx_agg_driver.cpp
index a19868f764..affabba797 100644
--- a/core/fxge/agg/fx_agg_driver.cpp
+++ b/core/fxge/agg/fx_agg_driver.cpp
@@ -326,7 +326,7 @@ class CFX_Renderer {
void prepare(unsigned) {}
void CompositeSpan(uint8_t* dest_scan,
- uint8_t* ori_scan,
+ uint8_t* backdrop_scan,
int Bpp,
bool bDestAlpha,
int span_left,
@@ -387,7 +387,7 @@ class CFX_Renderer {
uint8_t* dest_extra_alpha_scan);
bool Init(const RetainPtr<CFX_DIBitmap>& pDevice,
- const RetainPtr<CFX_DIBitmap>& pOriDevice,
+ const RetainPtr<CFX_DIBitmap>& pBackdropDevice,
const CFX_ClipRgn* pClipRgn,
uint32_t color,
bool bFullCover,
@@ -443,14 +443,14 @@ class CFX_Renderer {
bool m_bFullCover;
bool m_bRgbByteOrder;
FX_RECT m_ClipBox;
- RetainPtr<CFX_DIBitmap> m_pOriDevice;
+ RetainPtr<CFX_DIBitmap> m_pBackdropDevice;
RetainPtr<CFX_DIBitmap> m_pClipMask;
RetainPtr<CFX_DIBitmap> m_pDevice;
UnownedPtr<const CFX_ClipRgn> m_pClipRgn;
};
void CFX_Renderer::CompositeSpan(uint8_t* dest_scan,
- uint8_t* ori_scan,
+ uint8_t* backdrop_scan,
int Bpp,
bool bDestAlpha,
int span_left,
@@ -464,30 +464,33 @@ void CFX_Renderer::CompositeSpan(uint8_t* dest_scan,
int col_end = GetColEnd(span_left, span_len, clip_right);
if (Bpp) {
dest_scan += col_start * Bpp;
- ori_scan += col_start * Bpp;
+ backdrop_scan += col_start * Bpp;
} else {
dest_scan += col_start / 8;
- ori_scan += col_start / 8;
+ backdrop_scan += col_start / 8;
}
if (m_bRgbByteOrder) {
if (Bpp == 4 && bDestAlpha) {
for (int col = col_start; col < col_end; col++) {
int src_alpha = GetSrcAlpha(clip_scan, col);
uint8_t dest_alpha =
- ori_scan[3] + src_alpha - ori_scan[3] * src_alpha / 255;
+ backdrop_scan[3] + src_alpha - backdrop_scan[3] * src_alpha / 255;
dest_scan[3] = dest_alpha;
int alpha_ratio = src_alpha * 255 / dest_alpha;
if (m_bFullCover) {
- *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, alpha_ratio);
- *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, alpha_ratio);
- *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, alpha_ratio);
+ *dest_scan++ =
+ FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Red, alpha_ratio);
+ *dest_scan++ =
+ FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Green, alpha_ratio);
+ *dest_scan++ =
+ FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Blue, alpha_ratio);
dest_scan++;
- ori_scan++;
+ backdrop_scan++;
} else {
- int r = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, alpha_ratio);
- int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, alpha_ratio);
- int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, alpha_ratio);
- ori_scan++;
+ int r = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Red, alpha_ratio);
+ int g = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Green, alpha_ratio);
+ int b = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Blue, alpha_ratio);
+ backdrop_scan++;
*dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan[col]);
dest_scan++;
*dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan[col]);
@@ -501,10 +504,10 @@ void CFX_Renderer::CompositeSpan(uint8_t* dest_scan,
if (Bpp == 3 || Bpp == 4) {
for (int col = col_start; col < col_end; col++) {
int src_alpha = GetSrcAlpha(clip_scan, col);
- int r = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, src_alpha);
- int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha);
- int b = FXDIB_ALPHA_MERGE(*ori_scan, m_Blue, src_alpha);
- ori_scan += Bpp - 2;
+ int r = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Red, src_alpha);
+ int g = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Green, src_alpha);
+ int b = FXDIB_ALPHA_MERGE(*backdrop_scan, m_Blue, src_alpha);
+ backdrop_scan += Bpp - 2;
*dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan[col]);
dest_scan++;
*dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan[col]);
@@ -554,17 +557,17 @@ void CFX_Renderer::CompositeSpan(uint8_t* dest_scan,
for (int col = col_start; col < col_end; col++) {
int src_alpha = GetSrcAlpha(clip_scan, col);
if (m_bFullCover) {
- *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, src_alpha);
- *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha);
- *dest_scan = FXDIB_ALPHA_MERGE(*ori_scan, m_Red, src_alpha);
+ *dest_scan++ = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Blue, src_alpha);
+ *dest_scan++ = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Green, src_alpha);
+ *dest_scan = FXDIB_ALPHA_MERGE(*backdrop_scan, m_Red, src_alpha);
dest_scan += Bpp - 2;
- ori_scan += Bpp - 2;
+ backdrop_scan += Bpp - 2;
continue;
}
- int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, src_alpha);
- int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha);
- int r = FXDIB_ALPHA_MERGE(*ori_scan, m_Red, src_alpha);
- ori_scan += Bpp - 2;
+ int b = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Blue, src_alpha);
+ int g = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Green, src_alpha);
+ int r = FXDIB_ALPHA_MERGE(*backdrop_scan, m_Red, src_alpha);
+ backdrop_scan += Bpp - 2;
*dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, b, cover_scan[col]);
dest_scan++;
*dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan[col]);
@@ -579,10 +582,10 @@ void CFX_Renderer::CompositeSpan(uint8_t* dest_scan,
for (int col = col_start; col < col_end; col++) {
int src_alpha = GetSrcAlpha(clip_scan, col);
if (m_bFullCover) {
- *dest_scan = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha);
+ *dest_scan = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Gray, src_alpha);
continue;
}
- int gray = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha);
+ int gray = FXDIB_ALPHA_MERGE(*backdrop_scan++, m_Gray, src_alpha);
*dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, gray, cover_scan[col]);
dest_scan++;
}
@@ -886,7 +889,7 @@ void CFX_Renderer::CompositeSpanCMYK(uint8_t* dest_scan,
}
bool CFX_Renderer::Init(const RetainPtr<CFX_DIBitmap>& pDevice,
- const RetainPtr<CFX_DIBitmap>& pOriDevice,
+ const RetainPtr<CFX_DIBitmap>& pBackdropDevice,
const CFX_ClipRgn* pClipRgn,
uint32_t color,
bool bFullCover,
@@ -895,7 +898,7 @@ bool CFX_Renderer::Init(const RetainPtr<CFX_DIBitmap>& pDevice,
m_pClipRgn = pClipRgn;
composite_span = nullptr;
m_bRgbByteOrder = bRgbByteOrder;
- m_pOriDevice = pOriDevice;
+ m_pBackdropDevice = pBackdropDevice;
if (m_pClipRgn) {
m_ClipBox = m_pClipRgn->GetBox();
} else {
@@ -938,7 +941,7 @@ bool CFX_Renderer::Init(const RetainPtr<CFX_DIBitmap>& pDevice,
template <class Scanline>
void CFX_Renderer::render(const Scanline& sl) {
- if (!m_pOriDevice && !composite_span)
+ if (!m_pBackdropDevice && !composite_span)
return;
int y = sl.y();
@@ -952,9 +955,11 @@ void CFX_Renderer::render(const Scanline& sl) {
dest_scan_extra_alpha =
pAlphaMask->GetBuffer() + pAlphaMask->GetPitch() * y;
}
- uint8_t* ori_scan = nullptr;
- if (m_pOriDevice)
- ori_scan = m_pOriDevice->GetBuffer() + m_pOriDevice->GetPitch() * y;
+ uint8_t* backdrop_scan = nullptr;
+ if (m_pBackdropDevice) {
+ backdrop_scan =
+ m_pBackdropDevice->GetBuffer() + m_pBackdropDevice->GetPitch() * y;
+ }
int Bpp = m_pDevice->GetBPP() / 8;
bool bDestAlpha = m_pDevice->HasAlpha() || m_pDevice->IsAlphaMask();
unsigned num_spans = sl.num_spans();
@@ -966,15 +971,15 @@ void CFX_Renderer::render(const Scanline& sl) {
int x = span->x;
uint8_t* dest_pos = nullptr;
uint8_t* dest_extra_alpha_pos = nullptr;
- uint8_t* ori_pos = nullptr;
+ uint8_t* backdrop_pos = nullptr;
if (Bpp) {
- ori_pos = ori_scan ? ori_scan + x * Bpp : nullptr;
+ backdrop_pos = backdrop_scan ? backdrop_scan + x * Bpp : nullptr;
dest_pos = dest_scan + x * Bpp;
dest_extra_alpha_pos =
dest_scan_extra_alpha ? dest_scan_extra_alpha + x : nullptr;
} else {
dest_pos = dest_scan + x / 8;
- ori_pos = ori_scan ? ori_scan + x / 8 : nullptr;
+ backdrop_pos = backdrop_scan ? backdrop_scan + x / 8 : nullptr;
}
uint8_t* clip_pos = nullptr;
if (m_pClipMask) {
@@ -982,8 +987,8 @@ void CFX_Renderer::render(const Scanline& sl) {
(y - m_ClipBox.top) * m_pClipMask->GetPitch() + x -
m_ClipBox.left;
}
- if (ori_pos) {
- CompositeSpan(dest_pos, ori_pos, Bpp, bDestAlpha, x, span->len,
+ if (backdrop_pos) {
+ CompositeSpan(dest_pos, backdrop_pos, Bpp, bDestAlpha, x, span->len,
span->covers, m_ClipBox.left, m_ClipBox.right, clip_pos);
} else {
(this->*composite_span)(dest_pos, Bpp, x, span->len, span->covers,
@@ -1115,7 +1120,7 @@ void CAgg_PathData::BuildPath(const CFX_PathData* pPathData,
CFX_AggDeviceDriver::CFX_AggDeviceDriver(
const RetainPtr<CFX_DIBitmap>& pBitmap,
bool bRgbByteOrder,
- const RetainPtr<CFX_DIBitmap>& pOriDevice,
+ const RetainPtr<CFX_DIBitmap>& pBackdropBitmap,
bool bGroupKnockout)
: m_pBitmap(pBitmap),
#if _FX_PLATFORM_ == _FX_PLATFORM_APPLE_
@@ -1123,7 +1128,7 @@ CFX_AggDeviceDriver::CFX_AggDeviceDriver(
#endif
m_FillFlags(0),
m_bRgbByteOrder(bRgbByteOrder),
- m_pOriDevice(pOriDevice),
+ m_pBackdropBitmap(pBackdropBitmap),
m_bGroupKnockout(bGroupKnockout) {
InitPlatform();
}
@@ -1292,7 +1297,7 @@ bool CFX_AggDeviceDriver::RenderRasterizer(
uint32_t color,
bool bFullCover,
bool bGroupKnockout) {
- RetainPtr<CFX_DIBitmap> pt = bGroupKnockout ? m_pOriDevice : nullptr;
+ RetainPtr<CFX_DIBitmap> pt = bGroupKnockout ? m_pBackdropBitmap : nullptr;
CFX_Renderer render;
if (!render.Init(m_pBitmap, pt, m_pClipRgn.get(), color, bFullCover,
m_bRgbByteOrder)) {
@@ -1462,8 +1467,8 @@ bool CFX_AggDeviceDriver::GetDIBits(const RetainPtr<CFX_DIBitmap>& pBitmap,
FX_RECT rect(left, top, left + pBitmap->GetWidth(),
top + pBitmap->GetHeight());
RetainPtr<CFX_DIBitmap> pBack;
- if (m_pOriDevice) {
- pBack = m_pOriDevice->Clone(&rect);
+ if (m_pBackdropBitmap) {
+ pBack = m_pBackdropBitmap->Clone(&rect);
if (!pBack)
return true;
@@ -1487,7 +1492,7 @@ bool CFX_AggDeviceDriver::GetDIBits(const RetainPtr<CFX_DIBitmap>& pBitmap,
}
RetainPtr<CFX_DIBitmap> CFX_AggDeviceDriver::GetBackDrop() {
- return m_pOriDevice;
+ return m_pBackdropBitmap;
}
bool CFX_AggDeviceDriver::SetDIBits(const RetainPtr<CFX_DIBSource>& pBitmap,
@@ -1570,16 +1575,17 @@ CFX_DefaultRenderDevice::CFX_DefaultRenderDevice() {}
CFX_DefaultRenderDevice::~CFX_DefaultRenderDevice() {}
-bool CFX_DefaultRenderDevice::Attach(const RetainPtr<CFX_DIBitmap>& pBitmap,
- bool bRgbByteOrder,
- const RetainPtr<CFX_DIBitmap>& pOriDevice,
- bool bGroupKnockout) {
+bool CFX_DefaultRenderDevice::Attach(
+ const RetainPtr<CFX_DIBitmap>& pBitmap,
+ bool bRgbByteOrder,
+ const RetainPtr<CFX_DIBitmap>& pBackdropBitmap,
+ bool bGroupKnockout) {
if (!pBitmap)
return false;
SetBitmap(pBitmap);
SetDeviceDriver(pdfium::MakeUnique<CFX_AggDeviceDriver>(
- pBitmap, bRgbByteOrder, pOriDevice, bGroupKnockout));
+ pBitmap, bRgbByteOrder, pBackdropBitmap, bGroupKnockout));
return true;
}
@@ -1587,14 +1593,14 @@ bool CFX_DefaultRenderDevice::Create(
int width,
int height,
FXDIB_Format format,
- const RetainPtr<CFX_DIBitmap>& pOriDevice) {
+ const RetainPtr<CFX_DIBitmap>& pBackdropBitmap) {
auto pBitmap = pdfium::MakeRetain<CFX_DIBitmap>();
if (!pBitmap->Create(width, height, format))
return false;
SetBitmap(pBitmap);
- SetDeviceDriver(pdfium::MakeUnique<CFX_AggDeviceDriver>(pBitmap, false,
- pOriDevice, false));
+ SetDeviceDriver(pdfium::MakeUnique<CFX_AggDeviceDriver>(
+ pBitmap, false, pBackdropBitmap, false));
return true;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 05:08:01 +0000