// Copyright 2014 PDFium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "core/fpdfapi/fpdf_render/render_int.h"
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#include <algorithm>
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#include "core/fpdfapi/fpdf_page/cpdf_graphicstates.h"
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#include "core/fpdfapi/fpdf_page/cpdf_meshstream.h"
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#include "core/fpdfapi/fpdf_page/cpdf_shadingpattern.h"
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#include "core/fpdfapi/fpdf_page/cpdf_tilingpattern.h"
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#include "core/fpdfapi/fpdf_page/include/cpdf_form.h"
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#include "core/fpdfapi/fpdf_page/include/cpdf_pageobject.h"
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#include "core/fpdfapi/fpdf_page/include/cpdf_pathobject.h"
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#include "core/fpdfapi/fpdf_page/include/cpdf_shadingobject.h"
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#include "core/fpdfapi/fpdf_page/pageint.h"
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#include "core/fpdfapi/fpdf_parser/include/cpdf_array.h"
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#include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h"
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#include "core/fpdfapi/fpdf_render/include/cpdf_rendercontext.h"
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#include "core/fpdfapi/fpdf_render/include/cpdf_renderoptions.h"
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#include "core/fxge/include/ifx_renderdevicedriver.h"
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namespace {
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uint32_t CountOutputs(
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const std::vector<std::unique_ptr<CPDF_Function>>& funcs) {
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uint32_t total = 0;
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for (const auto& func : funcs) {
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if (func)
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total += func->CountOutputs();
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}
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return total;
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}
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#define SHADING_STEPS 256
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void DrawAxialShading(CFX_DIBitmap* pBitmap,
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CFX_Matrix* pObject2Bitmap,
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CPDF_Dictionary* pDict,
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const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
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CPDF_ColorSpace* pCS,
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int alpha) {
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ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
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CPDF_Array* pCoords = pDict->GetArrayBy("Coords");
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if (!pCoords) {
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return;
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}
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FX_FLOAT start_x = pCoords->GetNumberAt(0);
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FX_FLOAT start_y = pCoords->GetNumberAt(1);
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FX_FLOAT end_x = pCoords->GetNumberAt(2);
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FX_FLOAT end_y = pCoords->GetNumberAt(3);
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FX_FLOAT t_min = 0, t_max = 1.0f;
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CPDF_Array* pArray = pDict->GetArrayBy("Domain");
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if (pArray) {
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t_min = pArray->GetNumberAt(0);
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t_max = pArray->GetNumberAt(1);
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}
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FX_BOOL bStartExtend = FALSE, bEndExtend = FALSE;
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pArray = pDict->GetArrayBy("Extend");
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if (pArray) {
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bStartExtend = pArray->GetIntegerAt(0);
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bEndExtend = pArray->GetIntegerAt(1);
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}
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int width = pBitmap->GetWidth();
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int height = pBitmap->GetHeight();
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FX_FLOAT x_span = end_x - start_x;
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FX_FLOAT y_span = end_y - start_y;
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FX_FLOAT axis_len_square = (x_span * x_span) + (y_span * y_span);
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CFX_Matrix matrix;
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matrix.SetReverse(*pObject2Bitmap);
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uint32_t total_results =
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std::max(CountOutputs(funcs), pCS->CountComponents());
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CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
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FX_FLOAT* pResults = result_array;
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FXSYS_memset(pResults, 0, total_results * sizeof(FX_FLOAT));
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uint32_t rgb_array[SHADING_STEPS];
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for (int i = 0; i < SHADING_STEPS; i++) {
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FX_FLOAT input = (t_max - t_min) * i / SHADING_STEPS + t_min;
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int offset = 0;
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for (const auto& func : funcs) {
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if (func) {
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int nresults = 0;
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if (func->Call(&input, 1, pResults + offset, nresults))
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offset += nresults;
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}
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}
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FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
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pCS->GetRGB(pResults, R, G, B);
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rgb_array[i] =
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FXARGB_TODIB(FXARGB_MAKE(alpha, FXSYS_round(R * 255),
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FXSYS_round(G * 255), FXSYS_round(B * 255)));
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}
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int pitch = pBitmap->GetPitch();
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for (int row = 0; row < height; row++) {
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uint32_t* dib_buf = (uint32_t*)(pBitmap->GetBuffer() + row * pitch);
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for (int column = 0; column < width; column++) {
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FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
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matrix.Transform(x, y);
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FX_FLOAT scale = (((x - start_x) * x_span) + ((y - start_y) * y_span)) /
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axis_len_square;
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int index = (int32_t)(scale * (SHADING_STEPS - 1));
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if (index < 0) {
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if (!bStartExtend) {
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continue;
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}
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index = 0;
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} else if (index >= SHADING_STEPS) {
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if (!bEndExtend) {
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continue;
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}
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index = SHADING_STEPS - 1;
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}
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dib_buf[column] = rgb_array[index];
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}
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}
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}
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void DrawRadialShading(CFX_DIBitmap* pBitmap,
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CFX_Matrix* pObject2Bitmap,
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CPDF_Dictionary* pDict,
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const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
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CPDF_ColorSpace* pCS,
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int alpha) {
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ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
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CPDF_Array* pCoords = pDict->GetArrayBy("Coords");
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if (!pCoords) {
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return;
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}
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FX_FLOAT start_x = pCoords->GetNumberAt(0);
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FX_FLOAT start_y = pCoords->GetNumberAt(1);
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FX_FLOAT start_r = pCoords->GetNumberAt(2);
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FX_FLOAT end_x = pCoords->GetNumberAt(3);
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FX_FLOAT end_y = pCoords->GetNumberAt(4);
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FX_FLOAT end_r = pCoords->GetNumberAt(5);
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CFX_Matrix matrix;
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matrix.SetReverse(*pObject2Bitmap);
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FX_FLOAT t_min = 0, t_max = 1.0f;
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CPDF_Array* pArray = pDict->GetArrayBy("Domain");
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if (pArray) {
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t_min = pArray->GetNumberAt(0);
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t_max = pArray->GetNumberAt(1);
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}
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FX_BOOL bStartExtend = FALSE, bEndExtend = FALSE;
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pArray = pDict->GetArrayBy("Extend");
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if (pArray) {
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bStartExtend = pArray->GetIntegerAt(0);
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bEndExtend = pArray->GetIntegerAt(1);
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}
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uint32_t total_results =
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std::max(CountOutputs(funcs), pCS->CountComponents());
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CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
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FX_FLOAT* pResults = result_array;
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FXSYS_memset(pResults, 0, total_results * sizeof(FX_FLOAT));
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uint32_t rgb_array[SHADING_STEPS];
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for (int i = 0; i < SHADING_STEPS; i++) {
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FX_FLOAT input = (t_max - t_min) * i / SHADING_STEPS + t_min;
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int offset = 0;
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for (const auto& func : funcs) {
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if (func) {
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int nresults;
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if (func->Call(&input, 1, pResults + offset, nresults))
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offset += nresults;
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}
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}
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FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
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pCS->GetRGB(pResults, R, G, B);
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rgb_array[i] =
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FXARGB_TODIB(FXARGB_MAKE(alpha, FXSYS_round(R * 255),
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FXSYS_round(G * 255), FXSYS_round(B * 255)));
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}
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FX_FLOAT a = ((start_x - end_x) * (start_x - end_x)) +
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((start_y - end_y) * (start_y - end_y)) -
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((start_r - end_r) * (start_r - end_r));
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int width = pBitmap->GetWidth();
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int height = pBitmap->GetHeight();
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int pitch = pBitmap->GetPitch();
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FX_BOOL bDecreasing = FALSE;
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if (start_r > end_r) {
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int length = (int)FXSYS_sqrt((((start_x - end_x) * (start_x - end_x)) +
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((start_y - end_y) * (start_y - end_y))));
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if (length < start_r - end_r) {
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bDecreasing = TRUE;
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}
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}
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for (int row = 0; row < height; row++) {
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uint32_t* dib_buf = (uint32_t*)(pBitmap->GetBuffer() + row * pitch);
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for (int column = 0; column < width; column++) {
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FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
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matrix.Transform(x, y);
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FX_FLOAT b = -2 * (((x - start_x) * (end_x - start_x)) +
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((y - start_y) * (end_y - start_y)) +
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(start_r * (end_r - start_r)));
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FX_FLOAT c = ((x - start_x) * (x - start_x)) +
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((y - start_y) * (y - start_y)) - (start_r * start_r);
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FX_FLOAT s;
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if (a == 0) {
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s = -c / b;
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} else {
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FX_FLOAT b2_4ac = (b * b) - 4 * (a * c);
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if (b2_4ac < 0) {
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continue;
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}
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FX_FLOAT root = FXSYS_sqrt(b2_4ac);
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FX_FLOAT s1, s2;
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if (a > 0) {
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s1 = (-b - root) / (2 * a);
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s2 = (-b + root) / (2 * a);
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} else {
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s2 = (-b - root) / (2 * a);
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s1 = (-b + root) / (2 * a);
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}
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if (bDecreasing) {
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if (s1 >= 0 || bStartExtend) {
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s = s1;
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} else {
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s = s2;
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}
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} else {
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if (s2 <= 1.0f || bEndExtend) {
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s = s2;
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} else {
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s = s1;
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}
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}
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if ((start_r + s * (end_r - start_r)) < 0) {
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continue;
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}
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}
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int index = (int32_t)(s * (SHADING_STEPS - 1));
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if (index < 0) {
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if (!bStartExtend) {
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continue;
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}
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index = 0;
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}
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if (index >= SHADING_STEPS) {
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if (!bEndExtend) {
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continue;
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}
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index = SHADING_STEPS - 1;
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}
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dib_buf[column] = rgb_array[index];
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}
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}
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}
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void DrawFuncShading(CFX_DIBitmap* pBitmap,
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CFX_Matrix* pObject2Bitmap,
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CPDF_Dictionary* pDict,
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const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
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CPDF_ColorSpace* pCS,
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int alpha) {
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ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
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CPDF_Array* pDomain = pDict->GetArrayBy("Domain");
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FX_FLOAT xmin = 0, ymin = 0, xmax = 1.0f, ymax = 1.0f;
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if (pDomain) {
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xmin = pDomain->GetNumberAt(0);
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xmax = pDomain->GetNumberAt(1);
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ymin = pDomain->GetNumberAt(2);
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ymax = pDomain->GetNumberAt(3);
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}
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CFX_Matrix mtDomain2Target = pDict->GetMatrixBy("Matrix");
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CFX_Matrix matrix, reverse_matrix;
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matrix.SetReverse(*pObject2Bitmap);
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reverse_matrix.SetReverse(mtDomain2Target);
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matrix.Concat(reverse_matrix);
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int width = pBitmap->GetWidth();
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int height = pBitmap->GetHeight();
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int pitch = pBitmap->GetPitch();
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uint32_t total_results =
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std::max(CountOutputs(funcs), pCS->CountComponents());
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CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
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FX_FLOAT* pResults = result_array;
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FXSYS_memset(pResults, 0, total_results * sizeof(FX_FLOAT));
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for (int row = 0; row < height; row++) {
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uint32_t* dib_buf = (uint32_t*)(pBitmap->GetBuffer() + row * pitch);
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for (int column = 0; column < width; column++) {
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FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
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matrix.Transform(x, y);
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if (x < xmin || x > xmax || y < ymin || y > ymax) {
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continue;
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}
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FX_FLOAT input[2];
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int offset = 0;
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input[0] = x;
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input[1] = y;
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for (const auto& func : funcs) {
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if (func) {
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int nresults;
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if (func->Call(input, 2, pResults + offset, nresults))
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offset += nresults;
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}
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}
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FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
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pCS->GetRGB(pResults, R, G, B);
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dib_buf[column] = FXARGB_TODIB(FXARGB_MAKE(
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alpha, (int32_t)(R * 255), (int32_t)(G * 255), (int32_t)(B * 255)));
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}
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}
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}
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bool GetScanlineIntersect(int y,
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FX_FLOAT x1,
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FX_FLOAT y1,
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FX_FLOAT x2,
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FX_FLOAT y2,
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FX_FLOAT* x) {
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if (y1 == y2)
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return FALSE;
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if (y1 < y2) {
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if (y < y1 || y > y2)
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return FALSE;
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} else {
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if (y < y2 || y > y1)
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return FALSE;
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}
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*x = x1 + ((x2 - x1) * (y - y1) / (y2 - y1));
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return TRUE;
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}
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void DrawGouraud(CFX_DIBitmap* pBitmap,
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int alpha,
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CPDF_MeshVertex triangle[3]) {
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FX_FLOAT min_y = triangle[0].y, max_y = triangle[0].y;
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for (int i = 1; i < 3; i++) {
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if (min_y > triangle[i].y) {
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min_y = triangle[i].y;
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}
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if (max_y < triangle[i].y) {
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max_y = triangle[i].y;
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}
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}
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if (min_y == max_y) {
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return;
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}
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int min_yi = (int)FXSYS_floor(min_y), max_yi = (int)FXSYS_ceil(max_y);
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if (min_yi < 0) {
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min_yi = 0;
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}
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if (max_yi >= pBitmap->GetHeight()) {
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max_yi = pBitmap->GetHeight() - 1;
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}
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for (int y = min_yi; y <= max_yi; y++) {
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int nIntersects = 0;
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FX_FLOAT inter_x[3], r[3], g[3], b[3];
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for (int i = 0; i < 3; i++) {
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CPDF_MeshVertex& vertex1 = triangle[i];
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CPDF_MeshVertex& vertex2 = triangle[(i + 1) % 3];
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bool bIntersect = GetScanlineIntersect(y, vertex1.x, vertex1.y, vertex2.x,
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vertex2.y, &inter_x[nIntersects]);
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if (!bIntersect)
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continue;
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FX_FLOAT y_dist = (y - vertex1.y) / (vertex2.y - vertex1.y);
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r[nIntersects] = vertex1.r + ((vertex2.r - vertex1.r) * y_dist);
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g[nIntersects] = vertex1.g + ((vertex2.g - vertex1.g) * y_dist);
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b[nIntersects] = vertex1.b + ((vertex2.b - vertex1.b) * y_dist);
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nIntersects++;
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}
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if (nIntersects != 2) {
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continue;
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}
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int min_x, max_x, start_index, end_index;
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if (inter_x[0] < inter_x[1]) {
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min_x = (int)FXSYS_floor(inter_x[0]);
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max_x = (int)FXSYS_ceil(inter_x[1]);
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start_index = 0;
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end_index = 1;
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} else {
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min_x = (int)FXSYS_floor(inter_x[1]);
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max_x = (int)FXSYS_ceil(inter_x[0]);
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start_index = 1;
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end_index = 0;
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}
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int start_x = min_x, end_x = max_x;
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if (start_x < 0) {
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start_x = 0;
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}
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if (end_x > pBitmap->GetWidth()) {
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end_x = pBitmap->GetWidth();
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}
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uint8_t* dib_buf =
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pBitmap->GetBuffer() + y * pBitmap->GetPitch() + start_x * 4;
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FX_FLOAT r_unit = (r[end_index] - r[start_index]) / (max_x - min_x);
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FX_FLOAT g_unit = (g[end_index] - g[start_index]) / (max_x - min_x);
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FX_FLOAT b_unit = (b[end_index] - b[start_index]) / (max_x - min_x);
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FX_FLOAT R = r[start_index] + (start_x - min_x) * r_unit;
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FX_FLOAT G = g[start_index] + (start_x - min_x) * g_unit;
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FX_FLOAT B = b[start_index] + (start_x - min_x) * b_unit;
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for (int x = start_x; x < end_x; x++) {
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R += r_unit;
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G += g_unit;
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B += b_unit;
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FXARGB_SETDIB(dib_buf,
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FXARGB_MAKE(alpha, (int32_t)(R * 255), (int32_t)(G * 255),
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(int32_t)(B * 255)));
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dib_buf += 4;
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}
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}
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}
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void DrawFreeGouraudShading(
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CFX_DIBitmap* pBitmap,
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CFX_Matrix* pObject2Bitmap,
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CPDF_Stream* pShadingStream,
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const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
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CPDF_ColorSpace* pCS,
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int alpha) {
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ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
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CPDF_MeshStream stream(kFreeFormGouraudTriangleMeshShading, funcs,
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pShadingStream, pCS);
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if (!stream.Load())
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return;
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CPDF_MeshVertex triangle[3];
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FXSYS_memset(triangle, 0, sizeof(triangle));
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while (!stream.BitStream()->IsEOF()) {
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CPDF_MeshVertex vertex;
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uint32_t flag = stream.GetVertex(vertex, pObject2Bitmap);
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if (flag == 0) {
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triangle[0] = vertex;
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for (int j = 1; j < 3; j++) {
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stream.GetVertex(triangle[j], pObject2Bitmap);
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}
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} else {
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if (flag == 1) {
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triangle[0] = triangle[1];
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}
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triangle[1] = triangle[2];
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triangle[2] = vertex;
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}
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DrawGouraud(pBitmap, alpha, triangle);
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}
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}
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void DrawLatticeGouraudShading(
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CFX_DIBitmap* pBitmap,
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CFX_Matrix* pObject2Bitmap,
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CPDF_Stream* pShadingStream,
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const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
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CPDF_ColorSpace* pCS,
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int alpha) {
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ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
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int row_verts = pShadingStream->GetDict()->GetIntegerBy("VerticesPerRow");
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if (row_verts < 2)
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return;
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CPDF_MeshStream stream(kLatticeFormGouraudTriangleMeshShading, funcs,
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pShadingStream, pCS);
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if (!stream.Load())
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return;
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std::unique_ptr<CPDF_MeshVertex, FxFreeDeleter> vertex(
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FX_Alloc2D(CPDF_MeshVertex, row_verts, 2));
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if (!stream.GetVertexRow(vertex.get(), row_verts, pObject2Bitmap))
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return;
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int last_index = 0;
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while (1) {
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CPDF_MeshVertex* last_row = vertex.get() + last_index * row_verts;
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CPDF_MeshVertex* this_row = vertex.get() + (1 - last_index) * row_verts;
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if (!stream.GetVertexRow(this_row, row_verts, pObject2Bitmap))
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return;
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CPDF_MeshVertex triangle[3];
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for (int i = 1; i < row_verts; i++) {
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triangle[0] = last_row[i];
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triangle[1] = this_row[i - 1];
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triangle[2] = last_row[i - 1];
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DrawGouraud(pBitmap, alpha, triangle);
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triangle[2] = this_row[i];
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DrawGouraud(pBitmap, alpha, triangle);
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}
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last_index = 1 - last_index;
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}
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}
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struct Coon_BezierCoeff {
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float a, b, c, d;
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void FromPoints(float p0, float p1, float p2, float p3) {
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a = -p0 + 3 * p1 - 3 * p2 + p3;
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b = 3 * p0 - 6 * p1 + 3 * p2;
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c = -3 * p0 + 3 * p1;
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d = p0;
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}
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Coon_BezierCoeff first_half() {
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Coon_BezierCoeff result;
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result.a = a / 8;
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result.b = b / 4;
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result.c = c / 2;
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result.d = d;
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return result;
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}
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Coon_BezierCoeff second_half() {
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Coon_BezierCoeff result;
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result.a = a / 8;
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result.b = 3 * a / 8 + b / 4;
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result.c = 3 * a / 8 + b / 2 + c / 2;
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result.d = a / 8 + b / 4 + c / 2 + d;
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return result;
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}
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void GetPoints(float p[4]) {
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p[0] = d;
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p[1] = c / 3 + p[0];
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p[2] = b / 3 - p[0] + 2 * p[1];
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p[3] = a + p[0] - 3 * p[1] + 3 * p[2];
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}
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void GetPointsReverse(float p[4]) {
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p[3] = d;
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p[2] = c / 3 + p[3];
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p[1] = b / 3 - p[3] + 2 * p[2];
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p[0] = a + p[3] - 3 * p[2] + 3 * p[1];
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}
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void BezierInterpol(Coon_BezierCoeff& C1,
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Coon_BezierCoeff& C2,
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Coon_BezierCoeff& D1,
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Coon_BezierCoeff& D2) {
|
a = (D1.a + D2.a) / 2;
|
b = (D1.b + D2.b) / 2;
|
c = (D1.c + D2.c) / 2 - (C1.a / 8 + C1.b / 4 + C1.c / 2) +
|
(C2.a / 8 + C2.b / 4) + (-C1.d + D2.d) / 2 - (C2.a + C2.b) / 2;
|
d = C1.a / 8 + C1.b / 4 + C1.c / 2 + C1.d;
|
}
|
float Distance() {
|
float dis = a + b + c;
|
return dis < 0 ? -dis : dis;
|
}
|
};
|
|
struct Coon_Bezier {
|
Coon_BezierCoeff x, y;
|
void FromPoints(float x0,
|
float y0,
|
float x1,
|
float y1,
|
float x2,
|
float y2,
|
float x3,
|
float y3) {
|
x.FromPoints(x0, x1, x2, x3);
|
y.FromPoints(y0, y1, y2, y3);
|
}
|
Coon_Bezier first_half() {
|
Coon_Bezier result;
|
result.x = x.first_half();
|
result.y = y.first_half();
|
return result;
|
}
|
Coon_Bezier second_half() {
|
Coon_Bezier result;
|
result.x = x.second_half();
|
result.y = y.second_half();
|
return result;
|
}
|
void BezierInterpol(Coon_Bezier& C1,
|
Coon_Bezier& C2,
|
Coon_Bezier& D1,
|
Coon_Bezier& D2) {
|
x.BezierInterpol(C1.x, C2.x, D1.x, D2.x);
|
y.BezierInterpol(C1.y, C2.y, D1.y, D2.y);
|
}
|
void GetPoints(FX_PATHPOINT* pPoints) {
|
float p[4];
|
int i;
|
x.GetPoints(p);
|
for (i = 0; i < 4; i++) {
|
pPoints[i].m_PointX = p[i];
|
}
|
y.GetPoints(p);
|
for (i = 0; i < 4; i++) {
|
pPoints[i].m_PointY = p[i];
|
}
|
}
|
void GetPointsReverse(FX_PATHPOINT* pPoints) {
|
float p[4];
|
int i;
|
x.GetPointsReverse(p);
|
for (i = 0; i < 4; i++) {
|
pPoints[i].m_PointX = p[i];
|
}
|
y.GetPointsReverse(p);
|
for (i = 0; i < 4; i++) {
|
pPoints[i].m_PointY = p[i];
|
}
|
}
|
float Distance() { return x.Distance() + y.Distance(); }
|
};
|
|
int BiInterpolImpl(int c0,
|
int c1,
|
int c2,
|
int c3,
|
int x,
|
int y,
|
int x_scale,
|
int y_scale) {
|
int x1 = c0 + (c3 - c0) * x / x_scale;
|
int x2 = c1 + (c2 - c1) * x / x_scale;
|
return x1 + (x2 - x1) * y / y_scale;
|
}
|
|
struct Coon_Color {
|
Coon_Color() { FXSYS_memset(comp, 0, sizeof(int) * 3); }
|
int comp[3];
|
|
void BiInterpol(Coon_Color colors[4],
|
int x,
|
int y,
|
int x_scale,
|
int y_scale) {
|
for (int i = 0; i < 3; i++) {
|
comp[i] = BiInterpolImpl(colors[0].comp[i], colors[1].comp[i],
|
colors[2].comp[i], colors[3].comp[i], x, y,
|
x_scale, y_scale);
|
}
|
}
|
|
int Distance(Coon_Color& o) {
|
return std::max({FXSYS_abs(comp[0] - o.comp[0]),
|
FXSYS_abs(comp[1] - o.comp[1]),
|
FXSYS_abs(comp[2] - o.comp[2])});
|
}
|
};
|
|
struct CPDF_PatchDrawer {
|
Coon_Color patch_colors[4];
|
int max_delta;
|
CFX_PathData path;
|
CFX_RenderDevice* pDevice;
|
int fill_mode;
|
int alpha;
|
void Draw(int x_scale,
|
int y_scale,
|
int left,
|
int bottom,
|
Coon_Bezier C1,
|
Coon_Bezier C2,
|
Coon_Bezier D1,
|
Coon_Bezier D2) {
|
FX_BOOL bSmall = C1.Distance() < 2 && C2.Distance() < 2 &&
|
D1.Distance() < 2 && D2.Distance() < 2;
|
Coon_Color div_colors[4];
|
int d_bottom = 0;
|
int d_left = 0;
|
int d_top = 0;
|
int d_right = 0;
|
div_colors[0].BiInterpol(patch_colors, left, bottom, x_scale, y_scale);
|
if (!bSmall) {
|
div_colors[1].BiInterpol(patch_colors, left, bottom + 1, x_scale,
|
y_scale);
|
div_colors[2].BiInterpol(patch_colors, left + 1, bottom + 1, x_scale,
|
y_scale);
|
div_colors[3].BiInterpol(patch_colors, left + 1, bottom, x_scale,
|
y_scale);
|
d_bottom = div_colors[3].Distance(div_colors[0]);
|
d_left = div_colors[1].Distance(div_colors[0]);
|
d_top = div_colors[1].Distance(div_colors[2]);
|
d_right = div_colors[2].Distance(div_colors[3]);
|
}
|
#define COONCOLOR_THRESHOLD 4
|
if (bSmall ||
|
(d_bottom < COONCOLOR_THRESHOLD && d_left < COONCOLOR_THRESHOLD &&
|
d_top < COONCOLOR_THRESHOLD && d_right < COONCOLOR_THRESHOLD)) {
|
FX_PATHPOINT* pPoints = path.GetPoints();
|
C1.GetPoints(pPoints);
|
D2.GetPoints(pPoints + 3);
|
C2.GetPointsReverse(pPoints + 6);
|
D1.GetPointsReverse(pPoints + 9);
|
int fillFlags = FXFILL_WINDING | FXFILL_FULLCOVER;
|
if (fill_mode & RENDER_NOPATHSMOOTH) {
|
fillFlags |= FXFILL_NOPATHSMOOTH;
|
}
|
pDevice->DrawPath(
|
&path, nullptr, nullptr,
|
FXARGB_MAKE(alpha, div_colors[0].comp[0], div_colors[0].comp[1],
|
div_colors[0].comp[2]),
|
0, fillFlags);
|
} else {
|
if (d_bottom < COONCOLOR_THRESHOLD && d_top < COONCOLOR_THRESHOLD) {
|
Coon_Bezier m1;
|
m1.BezierInterpol(D1, D2, C1, C2);
|
y_scale *= 2;
|
bottom *= 2;
|
Draw(x_scale, y_scale, left, bottom, C1, m1, D1.first_half(),
|
D2.first_half());
|
Draw(x_scale, y_scale, left, bottom + 1, m1, C2, D1.second_half(),
|
D2.second_half());
|
} else if (d_left < COONCOLOR_THRESHOLD &&
|
d_right < COONCOLOR_THRESHOLD) {
|
Coon_Bezier m2;
|
m2.BezierInterpol(C1, C2, D1, D2);
|
x_scale *= 2;
|
left *= 2;
|
Draw(x_scale, y_scale, left, bottom, C1.first_half(), C2.first_half(),
|
D1, m2);
|
Draw(x_scale, y_scale, left + 1, bottom, C1.second_half(),
|
C2.second_half(), m2, D2);
|
} else {
|
Coon_Bezier m1, m2;
|
m1.BezierInterpol(D1, D2, C1, C2);
|
m2.BezierInterpol(C1, C2, D1, D2);
|
Coon_Bezier m1f = m1.first_half();
|
Coon_Bezier m1s = m1.second_half();
|
Coon_Bezier m2f = m2.first_half();
|
Coon_Bezier m2s = m2.second_half();
|
x_scale *= 2;
|
y_scale *= 2;
|
left *= 2;
|
bottom *= 2;
|
Draw(x_scale, y_scale, left, bottom, C1.first_half(), m1f,
|
D1.first_half(), m2f);
|
Draw(x_scale, y_scale, left, bottom + 1, m1f, C2.first_half(),
|
D1.second_half(), m2s);
|
Draw(x_scale, y_scale, left + 1, bottom, C1.second_half(), m1s, m2f,
|
D2.first_half());
|
Draw(x_scale, y_scale, left + 1, bottom + 1, m1s, C2.second_half(), m2s,
|
D2.second_half());
|
}
|
}
|
}
|
};
|
|
void DrawCoonPatchMeshes(
|
ShadingType type,
|
CFX_DIBitmap* pBitmap,
|
CFX_Matrix* pObject2Bitmap,
|
CPDF_Stream* pShadingStream,
|
const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
|
CPDF_ColorSpace* pCS,
|
int fill_mode,
|
int alpha) {
|
ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
|
ASSERT(type == kCoonsPatchMeshShading ||
|
type == kTensorProductPatchMeshShading);
|
|
CFX_FxgeDevice device;
|
device.Attach(pBitmap, false, nullptr, false);
|
CPDF_MeshStream stream(type, funcs, pShadingStream, pCS);
|
if (!stream.Load())
|
return;
|
|
CPDF_PatchDrawer patch;
|
patch.alpha = alpha;
|
patch.pDevice = &device;
|
patch.fill_mode = fill_mode;
|
patch.path.SetPointCount(13);
|
FX_PATHPOINT* pPoints = patch.path.GetPoints();
|
pPoints[0].m_Flag = FXPT_MOVETO;
|
for (int i = 1; i < 13; i++)
|
pPoints[i].m_Flag = FXPT_BEZIERTO;
|
CFX_PointF coords[16];
|
int point_count = type == kTensorProductPatchMeshShading ? 16 : 12;
|
while (!stream.BitStream()->IsEOF()) {
|
uint32_t flag = stream.GetFlag();
|
int iStartPoint = 0, iStartColor = 0, i = 0;
|
if (flag) {
|
iStartPoint = 4;
|
iStartColor = 2;
|
CFX_PointF tempCoords[4];
|
for (i = 0; i < 4; i++) {
|
tempCoords[i] = coords[(flag * 3 + i) % 12];
|
}
|
FXSYS_memcpy(coords, tempCoords, sizeof(tempCoords));
|
Coon_Color tempColors[2];
|
tempColors[0] = patch.patch_colors[flag];
|
tempColors[1] = patch.patch_colors[(flag + 1) % 4];
|
FXSYS_memcpy(patch.patch_colors, tempColors, sizeof(Coon_Color) * 2);
|
}
|
for (i = iStartPoint; i < point_count; i++) {
|
stream.GetCoords(coords[i].x, coords[i].y);
|
pObject2Bitmap->Transform(coords[i].x, coords[i].y);
|
}
|
for (i = iStartColor; i < 4; i++) {
|
FX_FLOAT r = 0.0f, g = 0.0f, b = 0.0f;
|
stream.GetColor(r, g, b);
|
patch.patch_colors[i].comp[0] = (int32_t)(r * 255);
|
patch.patch_colors[i].comp[1] = (int32_t)(g * 255);
|
patch.patch_colors[i].comp[2] = (int32_t)(b * 255);
|
}
|
CFX_FloatRect bbox = CFX_FloatRect::GetBBox(coords, point_count);
|
if (bbox.right <= 0 || bbox.left >= (FX_FLOAT)pBitmap->GetWidth() ||
|
bbox.top <= 0 || bbox.bottom >= (FX_FLOAT)pBitmap->GetHeight()) {
|
continue;
|
}
|
Coon_Bezier C1, C2, D1, D2;
|
C1.FromPoints(coords[0].x, coords[0].y, coords[11].x, coords[11].y,
|
coords[10].x, coords[10].y, coords[9].x, coords[9].y);
|
C2.FromPoints(coords[3].x, coords[3].y, coords[4].x, coords[4].y,
|
coords[5].x, coords[5].y, coords[6].x, coords[6].y);
|
D1.FromPoints(coords[0].x, coords[0].y, coords[1].x, coords[1].y,
|
coords[2].x, coords[2].y, coords[3].x, coords[3].y);
|
D2.FromPoints(coords[9].x, coords[9].y, coords[8].x, coords[8].y,
|
coords[7].x, coords[7].y, coords[6].x, coords[6].y);
|
patch.Draw(1, 1, 0, 0, C1, C2, D1, D2);
|
}
|
}
|
|
std::unique_ptr<CFX_DIBitmap> DrawPatternBitmap(
|
CPDF_Document* pDoc,
|
CPDF_PageRenderCache* pCache,
|
CPDF_TilingPattern* pPattern,
|
const CFX_Matrix* pObject2Device,
|
int width,
|
int height,
|
int flags) {
|
std::unique_ptr<CFX_DIBitmap> pBitmap(new CFX_DIBitmap);
|
if (!pBitmap->Create(width, height,
|
pPattern->colored() ? FXDIB_Argb : FXDIB_8bppMask)) {
|
return std::unique_ptr<CFX_DIBitmap>();
|
}
|
CFX_FxgeDevice bitmap_device;
|
bitmap_device.Attach(pBitmap.get(), false, nullptr, false);
|
pBitmap->Clear(0);
|
CFX_FloatRect cell_bbox = pPattern->bbox();
|
pPattern->pattern_to_form()->TransformRect(cell_bbox);
|
pObject2Device->TransformRect(cell_bbox);
|
CFX_FloatRect bitmap_rect(0.0f, 0.0f, (FX_FLOAT)width, (FX_FLOAT)height);
|
CFX_Matrix mtAdjust;
|
mtAdjust.MatchRect(bitmap_rect, cell_bbox);
|
CFX_Matrix mtPattern2Bitmap = *pObject2Device;
|
mtPattern2Bitmap.Concat(mtAdjust);
|
CPDF_RenderOptions options;
|
if (!pPattern->colored())
|
options.m_ColorMode = RENDER_COLOR_ALPHA;
|
|
flags |= RENDER_FORCE_HALFTONE;
|
options.m_Flags = flags;
|
CPDF_RenderContext context(pDoc, pCache);
|
context.AppendLayer(pPattern->form(), &mtPattern2Bitmap);
|
context.Render(&bitmap_device, &options, nullptr);
|
return pBitmap;
|
}
|
|
} // namespace
|
|
void CPDF_RenderStatus::DrawShading(CPDF_ShadingPattern* pPattern,
|
CFX_Matrix* pMatrix,
|
FX_RECT& clip_rect,
|
int alpha,
|
FX_BOOL bAlphaMode) {
|
const auto& funcs = pPattern->GetFuncs();
|
CPDF_Dictionary* pDict = pPattern->GetShadingObject()->GetDict();
|
CPDF_ColorSpace* pColorSpace = pPattern->GetCS();
|
if (!pColorSpace)
|
return;
|
|
FX_ARGB background = 0;
|
if (!pPattern->IsShadingObject() && pDict->KeyExist("Background")) {
|
CPDF_Array* pBackColor = pDict->GetArrayBy("Background");
|
if (pBackColor &&
|
pBackColor->GetCount() >= pColorSpace->CountComponents()) {
|
CFX_FixedBufGrow<FX_FLOAT, 16> comps(pColorSpace->CountComponents());
|
for (uint32_t i = 0; i < pColorSpace->CountComponents(); i++)
|
comps[i] = pBackColor->GetNumberAt(i);
|
FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
|
pColorSpace->GetRGB(comps, R, G, B);
|
background = ArgbEncode(255, (int32_t)(R * 255), (int32_t)(G * 255),
|
(int32_t)(B * 255));
|
}
|
}
|
if (pDict->KeyExist("BBox")) {
|
CFX_FloatRect rect = pDict->GetRectBy("BBox");
|
rect.Transform(pMatrix);
|
clip_rect.Intersect(rect.GetOutterRect());
|
}
|
if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SHADING &&
|
m_pDevice->GetDeviceDriver()->DrawShading(pPattern, pMatrix, clip_rect,
|
alpha, bAlphaMode)) {
|
return;
|
}
|
CPDF_DeviceBuffer buffer;
|
buffer.Initialize(m_pContext, m_pDevice, &clip_rect, m_pCurObj, 150);
|
CFX_Matrix FinalMatrix = *pMatrix;
|
FinalMatrix.Concat(*buffer.GetMatrix());
|
CFX_DIBitmap* pBitmap = buffer.GetBitmap();
|
if (!pBitmap->GetBuffer())
|
return;
|
|
pBitmap->Clear(background);
|
int fill_mode = m_Options.m_Flags;
|
switch (pPattern->GetShadingType()) {
|
case kInvalidShading:
|
case kMaxShading:
|
return;
|
case kFunctionBasedShading:
|
DrawFuncShading(pBitmap, &FinalMatrix, pDict, funcs, pColorSpace, alpha);
|
break;
|
case kAxialShading:
|
DrawAxialShading(pBitmap, &FinalMatrix, pDict, funcs, pColorSpace, alpha);
|
break;
|
case kRadialShading:
|
DrawRadialShading(pBitmap, &FinalMatrix, pDict, funcs, pColorSpace,
|
alpha);
|
break;
|
case kFreeFormGouraudTriangleMeshShading: {
|
// The shading object can be a stream or a dictionary. We do not handle
|
// the case of dictionary at the moment.
|
if (CPDF_Stream* pStream = ToStream(pPattern->GetShadingObject())) {
|
DrawFreeGouraudShading(pBitmap, &FinalMatrix, pStream, funcs,
|
pColorSpace, alpha);
|
}
|
} break;
|
case kLatticeFormGouraudTriangleMeshShading: {
|
// The shading object can be a stream or a dictionary. We do not handle
|
// the case of dictionary at the moment.
|
if (CPDF_Stream* pStream = ToStream(pPattern->GetShadingObject())) {
|
DrawLatticeGouraudShading(pBitmap, &FinalMatrix, pStream, funcs,
|
pColorSpace, alpha);
|
}
|
} break;
|
case kCoonsPatchMeshShading:
|
case kTensorProductPatchMeshShading: {
|
// The shading object can be a stream or a dictionary. We do not handle
|
// the case of dictionary at the moment.
|
if (CPDF_Stream* pStream = ToStream(pPattern->GetShadingObject())) {
|
DrawCoonPatchMeshes(pPattern->GetShadingType(), pBitmap, &FinalMatrix,
|
pStream, funcs, pColorSpace, fill_mode, alpha);
|
}
|
} break;
|
}
|
if (bAlphaMode)
|
pBitmap->LoadChannel(FXDIB_Red, pBitmap, FXDIB_Alpha);
|
|
if (m_Options.m_ColorMode == RENDER_COLOR_GRAY)
|
pBitmap->ConvertColorScale(m_Options.m_ForeColor, m_Options.m_BackColor);
|
buffer.OutputToDevice();
|
}
|
|
void CPDF_RenderStatus::DrawShadingPattern(CPDF_ShadingPattern* pattern,
|
const CPDF_PageObject* pPageObj,
|
const CFX_Matrix* pObj2Device,
|
FX_BOOL bStroke) {
|
if (!pattern->Load())
|
return;
|
|
m_pDevice->SaveState();
|
if (pPageObj->IsPath()) {
|
if (!SelectClipPath(pPageObj->AsPath(), pObj2Device, bStroke)) {
|
m_pDevice->RestoreState(false);
|
return;
|
}
|
} else if (pPageObj->IsImage()) {
|
m_pDevice->SetClip_Rect(pPageObj->GetBBox(pObj2Device));
|
} else {
|
return;
|
}
|
FX_RECT rect;
|
if (GetObjectClippedRect(pPageObj, pObj2Device, FALSE, rect)) {
|
m_pDevice->RestoreState(false);
|
return;
|
}
|
CFX_Matrix matrix = *pattern->pattern_to_form();
|
matrix.Concat(*pObj2Device);
|
GetScaledMatrix(matrix);
|
int alpha = pPageObj->m_GeneralState.GetAlpha(bStroke);
|
DrawShading(pattern, &matrix, rect, alpha,
|
m_Options.m_ColorMode == RENDER_COLOR_ALPHA);
|
m_pDevice->RestoreState(false);
|
}
|
|
void CPDF_RenderStatus::ProcessShading(const CPDF_ShadingObject* pShadingObj,
|
const CFX_Matrix* pObj2Device) {
|
FX_RECT rect = pShadingObj->GetBBox(pObj2Device);
|
FX_RECT clip_box = m_pDevice->GetClipBox();
|
rect.Intersect(clip_box);
|
if (rect.IsEmpty())
|
return;
|
|
CFX_Matrix matrix = pShadingObj->m_Matrix;
|
matrix.Concat(*pObj2Device);
|
DrawShading(pShadingObj->m_pShading, &matrix, rect,
|
pShadingObj->m_GeneralState.GetAlpha(FALSE),
|
m_Options.m_ColorMode == RENDER_COLOR_ALPHA);
|
}
|
|
void CPDF_RenderStatus::DrawTilingPattern(CPDF_TilingPattern* pPattern,
|
const CPDF_PageObject* pPageObj,
|
const CFX_Matrix* pObj2Device,
|
FX_BOOL bStroke) {
|
if (!pPattern->Load()) {
|
return;
|
}
|
m_pDevice->SaveState();
|
if (pPageObj->IsPath()) {
|
if (!SelectClipPath(pPageObj->AsPath(), pObj2Device, bStroke)) {
|
m_pDevice->RestoreState(false);
|
return;
|
}
|
} else if (pPageObj->IsImage()) {
|
m_pDevice->SetClip_Rect(pPageObj->GetBBox(pObj2Device));
|
} else {
|
return;
|
}
|
FX_RECT clip_box = m_pDevice->GetClipBox();
|
if (clip_box.IsEmpty()) {
|
m_pDevice->RestoreState(false);
|
return;
|
}
|
CFX_Matrix dCTM = m_pDevice->GetCTM();
|
FX_FLOAT sa = FXSYS_fabs(dCTM.a);
|
FX_FLOAT sd = FXSYS_fabs(dCTM.d);
|
clip_box.right = clip_box.left + (int32_t)FXSYS_ceil(clip_box.Width() * sa);
|
clip_box.bottom = clip_box.top + (int32_t)FXSYS_ceil(clip_box.Height() * sd);
|
CFX_Matrix mtPattern2Device = *pPattern->pattern_to_form();
|
mtPattern2Device.Concat(*pObj2Device);
|
GetScaledMatrix(mtPattern2Device);
|
FX_BOOL bAligned = FALSE;
|
if (pPattern->bbox().left == 0 && pPattern->bbox().bottom == 0 &&
|
pPattern->bbox().right == pPattern->x_step() &&
|
pPattern->bbox().top == pPattern->y_step() &&
|
(mtPattern2Device.IsScaled() || mtPattern2Device.Is90Rotated())) {
|
bAligned = TRUE;
|
}
|
CFX_FloatRect cell_bbox = pPattern->bbox();
|
mtPattern2Device.TransformRect(cell_bbox);
|
int width = (int)FXSYS_ceil(cell_bbox.Width());
|
int height = (int)FXSYS_ceil(cell_bbox.Height());
|
if (width == 0) {
|
width = 1;
|
}
|
if (height == 0) {
|
height = 1;
|
}
|
int min_col, max_col, min_row, max_row;
|
CFX_Matrix mtDevice2Pattern;
|
mtDevice2Pattern.SetReverse(mtPattern2Device);
|
CFX_FloatRect clip_box_p(clip_box);
|
clip_box_p.Transform(&mtDevice2Pattern);
|
|
min_col = (int)FXSYS_ceil((clip_box_p.left - pPattern->bbox().right) /
|
pPattern->x_step());
|
max_col = (int)FXSYS_floor((clip_box_p.right - pPattern->bbox().left) /
|
pPattern->x_step());
|
min_row = (int)FXSYS_ceil((clip_box_p.bottom - pPattern->bbox().top) /
|
pPattern->y_step());
|
max_row = (int)FXSYS_floor((clip_box_p.top - pPattern->bbox().bottom) /
|
pPattern->y_step());
|
|
if (width > clip_box.Width() || height > clip_box.Height() ||
|
width * height > clip_box.Width() * clip_box.Height()) {
|
CPDF_GraphicStates* pStates = nullptr;
|
if (!pPattern->colored())
|
pStates = CloneObjStates(pPageObj, bStroke);
|
|
CPDF_Dictionary* pFormResource = nullptr;
|
if (pPattern->form()->m_pFormDict)
|
pFormResource = pPattern->form()->m_pFormDict->GetDictBy("Resources");
|
|
for (int col = min_col; col <= max_col; col++)
|
for (int row = min_row; row <= max_row; row++) {
|
FX_FLOAT orig_x, orig_y;
|
orig_x = col * pPattern->x_step();
|
orig_y = row * pPattern->y_step();
|
mtPattern2Device.Transform(orig_x, orig_y);
|
CFX_Matrix matrix = *pObj2Device;
|
matrix.Translate(orig_x - mtPattern2Device.e,
|
orig_y - mtPattern2Device.f);
|
m_pDevice->SaveState();
|
CPDF_RenderStatus status;
|
status.Initialize(m_pContext, m_pDevice, nullptr, nullptr, this,
|
pStates, &m_Options, pPattern->form()->m_Transparency,
|
m_bDropObjects, pFormResource);
|
status.RenderObjectList(pPattern->form(), &matrix);
|
m_pDevice->RestoreState(false);
|
}
|
m_pDevice->RestoreState(false);
|
delete pStates;
|
return;
|
}
|
if (bAligned) {
|
int orig_x = FXSYS_round(mtPattern2Device.e);
|
int orig_y = FXSYS_round(mtPattern2Device.f);
|
min_col = (clip_box.left - orig_x) / width;
|
if (clip_box.left < orig_x) {
|
min_col--;
|
}
|
max_col = (clip_box.right - orig_x) / width;
|
if (clip_box.right <= orig_x) {
|
max_col--;
|
}
|
min_row = (clip_box.top - orig_y) / height;
|
if (clip_box.top < orig_y) {
|
min_row--;
|
}
|
max_row = (clip_box.bottom - orig_y) / height;
|
if (clip_box.bottom <= orig_y) {
|
max_row--;
|
}
|
}
|
FX_FLOAT left_offset = cell_bbox.left - mtPattern2Device.e;
|
FX_FLOAT top_offset = cell_bbox.bottom - mtPattern2Device.f;
|
std::unique_ptr<CFX_DIBitmap> pPatternBitmap;
|
if (width * height < 16) {
|
std::unique_ptr<CFX_DIBitmap> pEnlargedBitmap =
|
DrawPatternBitmap(m_pContext->GetDocument(), m_pContext->GetPageCache(),
|
pPattern, pObj2Device, 8, 8, m_Options.m_Flags);
|
pPatternBitmap.reset(pEnlargedBitmap->StretchTo(width, height));
|
} else {
|
pPatternBitmap = DrawPatternBitmap(
|
m_pContext->GetDocument(), m_pContext->GetPageCache(), pPattern,
|
pObj2Device, width, height, m_Options.m_Flags);
|
}
|
if (!pPatternBitmap) {
|
m_pDevice->RestoreState(false);
|
return;
|
}
|
if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
|
pPatternBitmap->ConvertColorScale(m_Options.m_ForeColor,
|
m_Options.m_BackColor);
|
}
|
FX_ARGB fill_argb = GetFillArgb(pPageObj);
|
int clip_width = clip_box.right - clip_box.left;
|
int clip_height = clip_box.bottom - clip_box.top;
|
CFX_DIBitmap screen;
|
if (!screen.Create(clip_width, clip_height, FXDIB_Argb)) {
|
return;
|
}
|
screen.Clear(0);
|
uint32_t* src_buf = (uint32_t*)pPatternBitmap->GetBuffer();
|
for (int col = min_col; col <= max_col; col++) {
|
for (int row = min_row; row <= max_row; row++) {
|
int start_x, start_y;
|
if (bAligned) {
|
start_x = FXSYS_round(mtPattern2Device.e) + col * width - clip_box.left;
|
start_y = FXSYS_round(mtPattern2Device.f) + row * height - clip_box.top;
|
} else {
|
FX_FLOAT orig_x = col * pPattern->x_step();
|
FX_FLOAT orig_y = row * pPattern->y_step();
|
mtPattern2Device.Transform(orig_x, orig_y);
|
start_x = FXSYS_round(orig_x + left_offset) - clip_box.left;
|
start_y = FXSYS_round(orig_y + top_offset) - clip_box.top;
|
}
|
if (width == 1 && height == 1) {
|
if (start_x < 0 || start_x >= clip_box.Width() || start_y < 0 ||
|
start_y >= clip_box.Height()) {
|
continue;
|
}
|
uint32_t* dest_buf =
|
(uint32_t*)(screen.GetBuffer() + screen.GetPitch() * start_y +
|
start_x * 4);
|
if (pPattern->colored())
|
*dest_buf = *src_buf;
|
else
|
*dest_buf = (*(uint8_t*)src_buf << 24) | (fill_argb & 0xffffff);
|
} else {
|
if (pPattern->colored()) {
|
screen.CompositeBitmap(start_x, start_y, width, height,
|
pPatternBitmap.get(), 0, 0);
|
} else {
|
screen.CompositeMask(start_x, start_y, width, height,
|
pPatternBitmap.get(), fill_argb, 0, 0);
|
}
|
}
|
}
|
}
|
CompositeDIBitmap(&screen, clip_box.left, clip_box.top, 0, 255,
|
FXDIB_BLEND_NORMAL, FALSE);
|
m_pDevice->RestoreState(false);
|
}
|
|
void CPDF_RenderStatus::DrawPathWithPattern(const CPDF_PathObject* pPathObj,
|
const CFX_Matrix* pObj2Device,
|
CPDF_Color* pColor,
|
FX_BOOL bStroke) {
|
CPDF_Pattern* pattern = pColor->GetPattern();
|
if (!pattern)
|
return;
|
|
if (CPDF_TilingPattern* pTilingPattern = pattern->AsTilingPattern())
|
DrawTilingPattern(pTilingPattern, pPathObj, pObj2Device, bStroke);
|
else if (CPDF_ShadingPattern* pShadingPattern = pattern->AsShadingPattern())
|
DrawShadingPattern(pShadingPattern, pPathObj, pObj2Device, bStroke);
|
}
|
|
void CPDF_RenderStatus::ProcessPathPattern(const CPDF_PathObject* pPathObj,
|
const CFX_Matrix* pObj2Device,
|
int& filltype,
|
FX_BOOL& bStroke) {
|
if (filltype) {
|
CPDF_Color& FillColor = *pPathObj->m_ColorState.GetFillColor();
|
if (FillColor.IsPattern()) {
|
DrawPathWithPattern(pPathObj, pObj2Device, &FillColor, FALSE);
|
filltype = 0;
|
}
|
}
|
if (bStroke) {
|
CPDF_Color& StrokeColor = *pPathObj->m_ColorState.GetStrokeColor();
|
if (StrokeColor.IsPattern()) {
|
DrawPathWithPattern(pPathObj, pObj2Device, &StrokeColor, TRUE);
|
bStroke = FALSE;
|
}
|
}
|
}
|
