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Unified Diff: core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp

Issue 2393593002: Move core/fpdfapi/fpdf_render to core/fpdfapi/render (Closed)
Patch Set: Rebase to master Created 4 years, 2 months ago
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Index: core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp b/core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
deleted file mode 100644
index 4bd712e7eb80af7906e6781bfceafbc012083147..0000000000000000000000000000000000000000
--- a/core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
+++ /dev/null
@@ -1,1215 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "core/fpdfapi/fpdf_render/render_int.h"
-
-#include <algorithm>
-
-#include "core/fpdfapi/fpdf_render/cpdf_rendercontext.h"
-#include "core/fpdfapi/fpdf_render/cpdf_renderoptions.h"
-#include "core/fpdfapi/page/cpdf_form.h"
-#include "core/fpdfapi/page/cpdf_graphicstates.h"
-#include "core/fpdfapi/page/cpdf_meshstream.h"
-#include "core/fpdfapi/page/cpdf_pageobject.h"
-#include "core/fpdfapi/page/cpdf_pathobject.h"
-#include "core/fpdfapi/page/cpdf_shadingobject.h"
-#include "core/fpdfapi/page/cpdf_shadingpattern.h"
-#include "core/fpdfapi/page/cpdf_tilingpattern.h"
-#include "core/fpdfapi/page/pageint.h"
-#include "core/fpdfapi/parser/cpdf_array.h"
-#include "core/fpdfapi/parser/cpdf_dictionary.h"
-#include "core/fxge/cfx_fxgedevice.h"
-#include "core/fxge/cfx_pathdata.h"
-#include "core/fxge/cfx_renderdevice.h"
-#include "core/fxge/ifx_renderdevicedriver.h"
-
-namespace {
-
-uint32_t CountOutputs(
- const std::vector<std::unique_ptr<CPDF_Function>>& funcs) {
- uint32_t total = 0;
- for (const auto& func : funcs) {
- if (func)
- total += func->CountOutputs();
- }
- return total;
-}
-
-#define SHADING_STEPS 256
-void DrawAxialShading(CFX_DIBitmap* pBitmap,
- CFX_Matrix* pObject2Bitmap,
- CPDF_Dictionary* pDict,
- const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
- CPDF_ColorSpace* pCS,
- int alpha) {
- ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
- CPDF_Array* pCoords = pDict->GetArrayFor("Coords");
- if (!pCoords) {
- return;
- }
- FX_FLOAT start_x = pCoords->GetNumberAt(0);
- FX_FLOAT start_y = pCoords->GetNumberAt(1);
- FX_FLOAT end_x = pCoords->GetNumberAt(2);
- FX_FLOAT end_y = pCoords->GetNumberAt(3);
- FX_FLOAT t_min = 0, t_max = 1.0f;
- CPDF_Array* pArray = pDict->GetArrayFor("Domain");
- if (pArray) {
- t_min = pArray->GetNumberAt(0);
- t_max = pArray->GetNumberAt(1);
- }
- FX_BOOL bStartExtend = FALSE, bEndExtend = FALSE;
- pArray = pDict->GetArrayFor("Extend");
- if (pArray) {
- bStartExtend = pArray->GetIntegerAt(0);
- bEndExtend = pArray->GetIntegerAt(1);
- }
- int width = pBitmap->GetWidth();
- int height = pBitmap->GetHeight();
- FX_FLOAT x_span = end_x - start_x;
- FX_FLOAT y_span = end_y - start_y;
- FX_FLOAT axis_len_square = (x_span * x_span) + (y_span * y_span);
- CFX_Matrix matrix;
- matrix.SetReverse(*pObject2Bitmap);
- uint32_t total_results =
- std::max(CountOutputs(funcs), pCS->CountComponents());
- CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
- FX_FLOAT* pResults = result_array;
- FXSYS_memset(pResults, 0, total_results * sizeof(FX_FLOAT));
- uint32_t rgb_array[SHADING_STEPS];
- for (int i = 0; i < SHADING_STEPS; i++) {
- FX_FLOAT input = (t_max - t_min) * i / SHADING_STEPS + t_min;
- int offset = 0;
- for (const auto& func : funcs) {
- if (func) {
- int nresults = 0;
- if (func->Call(&input, 1, pResults + offset, nresults))
- offset += nresults;
- }
- }
- FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
- 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)));
- }
- int pitch = pBitmap->GetPitch();
- for (int row = 0; row < height; row++) {
- uint32_t* dib_buf = (uint32_t*)(pBitmap->GetBuffer() + row * pitch);
- for (int column = 0; column < width; column++) {
- FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
- matrix.Transform(x, y);
- FX_FLOAT scale = (((x - start_x) * x_span) + ((y - start_y) * y_span)) /
- axis_len_square;
- int index = (int32_t)(scale * (SHADING_STEPS - 1));
- if (index < 0) {
- if (!bStartExtend) {
- continue;
- }
- index = 0;
- } else if (index >= SHADING_STEPS) {
- if (!bEndExtend) {
- continue;
- }
- index = SHADING_STEPS - 1;
- }
- dib_buf[column] = rgb_array[index];
- }
- }
-}
-
-void DrawRadialShading(CFX_DIBitmap* pBitmap,
- CFX_Matrix* pObject2Bitmap,
- CPDF_Dictionary* pDict,
- const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
- CPDF_ColorSpace* pCS,
- int alpha) {
- ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
- CPDF_Array* pCoords = pDict->GetArrayFor("Coords");
- if (!pCoords) {
- return;
- }
- FX_FLOAT start_x = pCoords->GetNumberAt(0);
- FX_FLOAT start_y = pCoords->GetNumberAt(1);
- FX_FLOAT start_r = pCoords->GetNumberAt(2);
- FX_FLOAT end_x = pCoords->GetNumberAt(3);
- FX_FLOAT end_y = pCoords->GetNumberAt(4);
- FX_FLOAT end_r = pCoords->GetNumberAt(5);
- CFX_Matrix matrix;
- matrix.SetReverse(*pObject2Bitmap);
- FX_FLOAT t_min = 0, t_max = 1.0f;
- CPDF_Array* pArray = pDict->GetArrayFor("Domain");
- if (pArray) {
- t_min = pArray->GetNumberAt(0);
- t_max = pArray->GetNumberAt(1);
- }
- FX_BOOL bStartExtend = FALSE, bEndExtend = FALSE;
- pArray = pDict->GetArrayFor("Extend");
- if (pArray) {
- bStartExtend = pArray->GetIntegerAt(0);
- bEndExtend = pArray->GetIntegerAt(1);
- }
- uint32_t total_results =
- std::max(CountOutputs(funcs), pCS->CountComponents());
- CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
- FX_FLOAT* pResults = result_array;
- FXSYS_memset(pResults, 0, total_results * sizeof(FX_FLOAT));
- uint32_t rgb_array[SHADING_STEPS];
- for (int i = 0; i < SHADING_STEPS; i++) {
- FX_FLOAT input = (t_max - t_min) * i / SHADING_STEPS + t_min;
- int offset = 0;
- for (const auto& func : funcs) {
- if (func) {
- int nresults;
- if (func->Call(&input, 1, pResults + offset, nresults))
- offset += nresults;
- }
- }
- FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
- 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)));
- }
- FX_FLOAT a = ((start_x - end_x) * (start_x - end_x)) +
- ((start_y - end_y) * (start_y - end_y)) -
- ((start_r - end_r) * (start_r - end_r));
- int width = pBitmap->GetWidth();
- int height = pBitmap->GetHeight();
- int pitch = pBitmap->GetPitch();
- FX_BOOL bDecreasing = FALSE;
- if (start_r > end_r) {
- int length = (int)FXSYS_sqrt((((start_x - end_x) * (start_x - end_x)) +
- ((start_y - end_y) * (start_y - end_y))));
- if (length < start_r - end_r) {
- bDecreasing = TRUE;
- }
- }
- for (int row = 0; row < height; row++) {
- uint32_t* dib_buf = (uint32_t*)(pBitmap->GetBuffer() + row * pitch);
- for (int column = 0; column < width; column++) {
- FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
- matrix.Transform(x, y);
- FX_FLOAT b = -2 * (((x - start_x) * (end_x - start_x)) +
- ((y - start_y) * (end_y - start_y)) +
- (start_r * (end_r - start_r)));
- FX_FLOAT c = ((x - start_x) * (x - start_x)) +
- ((y - start_y) * (y - start_y)) - (start_r * start_r);
- FX_FLOAT s;
- if (a == 0) {
- s = -c / b;
- } else {
- FX_FLOAT b2_4ac = (b * b) - 4 * (a * c);
- if (b2_4ac < 0) {
- continue;
- }
- FX_FLOAT root = FXSYS_sqrt(b2_4ac);
- FX_FLOAT s1, s2;
- if (a > 0) {
- s1 = (-b - root) / (2 * a);
- s2 = (-b + root) / (2 * a);
- } else {
- s2 = (-b - root) / (2 * a);
- s1 = (-b + root) / (2 * a);
- }
- if (bDecreasing) {
- if (s1 >= 0 || bStartExtend) {
- s = s1;
- } else {
- s = s2;
- }
- } else {
- if (s2 <= 1.0f || bEndExtend) {
- s = s2;
- } else {
- s = s1;
- }
- }
- if ((start_r + s * (end_r - start_r)) < 0) {
- continue;
- }
- }
- int index = (int32_t)(s * (SHADING_STEPS - 1));
- if (index < 0) {
- if (!bStartExtend) {
- continue;
- }
- index = 0;
- }
- if (index >= SHADING_STEPS) {
- if (!bEndExtend) {
- continue;
- }
- index = SHADING_STEPS - 1;
- }
- dib_buf[column] = rgb_array[index];
- }
- }
-}
-
-void DrawFuncShading(CFX_DIBitmap* pBitmap,
- CFX_Matrix* pObject2Bitmap,
- CPDF_Dictionary* pDict,
- const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
- CPDF_ColorSpace* pCS,
- int alpha) {
- ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
- CPDF_Array* pDomain = pDict->GetArrayFor("Domain");
- FX_FLOAT xmin = 0, ymin = 0, xmax = 1.0f, ymax = 1.0f;
- if (pDomain) {
- xmin = pDomain->GetNumberAt(0);
- xmax = pDomain->GetNumberAt(1);
- ymin = pDomain->GetNumberAt(2);
- ymax = pDomain->GetNumberAt(3);
- }
- CFX_Matrix mtDomain2Target = pDict->GetMatrixFor("Matrix");
- CFX_Matrix matrix, reverse_matrix;
- matrix.SetReverse(*pObject2Bitmap);
- reverse_matrix.SetReverse(mtDomain2Target);
- matrix.Concat(reverse_matrix);
- int width = pBitmap->GetWidth();
- int height = pBitmap->GetHeight();
- int pitch = pBitmap->GetPitch();
- uint32_t total_results =
- std::max(CountOutputs(funcs), pCS->CountComponents());
- CFX_FixedBufGrow<FX_FLOAT, 16> result_array(total_results);
- FX_FLOAT* pResults = result_array;
- FXSYS_memset(pResults, 0, total_results * sizeof(FX_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++) {
- FX_FLOAT x = (FX_FLOAT)column, y = (FX_FLOAT)row;
- matrix.Transform(x, y);
- if (x < xmin || x > xmax || y < ymin || y > ymax) {
- continue;
- }
- FX_FLOAT input[2];
- int offset = 0;
- input[0] = x;
- input[1] = y;
- for (const auto& func : funcs) {
- if (func) {
- int nresults;
- if (func->Call(input, 2, pResults + offset, nresults))
- offset += nresults;
- }
- }
- FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
- 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)));
- }
- }
-}
-
-bool GetScanlineIntersect(int y,
- FX_FLOAT x1,
- FX_FLOAT y1,
- FX_FLOAT x2,
- FX_FLOAT y2,
- FX_FLOAT* x) {
- if (y1 == y2)
- return FALSE;
-
- if (y1 < y2) {
- if (y < y1 || y > y2)
- return FALSE;
- } else {
- if (y < y2 || y > y1)
- return FALSE;
- }
- *x = x1 + ((x2 - x1) * (y - y1) / (y2 - y1));
- return TRUE;
-}
-
-void DrawGouraud(CFX_DIBitmap* pBitmap,
- int alpha,
- CPDF_MeshVertex triangle[3]) {
- FX_FLOAT min_y = triangle[0].y, max_y = triangle[0].y;
- for (int i = 1; i < 3; i++) {
- if (min_y > triangle[i].y) {
- min_y = triangle[i].y;
- }
- if (max_y < triangle[i].y) {
- max_y = triangle[i].y;
- }
- }
- if (min_y == max_y) {
- return;
- }
- int min_yi = (int)FXSYS_floor(min_y), max_yi = (int)FXSYS_ceil(max_y);
- if (min_yi < 0) {
- min_yi = 0;
- }
- if (max_yi >= pBitmap->GetHeight()) {
- max_yi = pBitmap->GetHeight() - 1;
- }
- for (int y = min_yi; y <= max_yi; y++) {
- int nIntersects = 0;
- FX_FLOAT inter_x[3], r[3], g[3], b[3];
- for (int i = 0; i < 3; i++) {
- CPDF_MeshVertex& vertex1 = triangle[i];
- CPDF_MeshVertex& vertex2 = triangle[(i + 1) % 3];
- bool bIntersect = GetScanlineIntersect(y, vertex1.x, vertex1.y, vertex2.x,
- vertex2.y, &inter_x[nIntersects]);
- if (!bIntersect)
- continue;
-
- FX_FLOAT y_dist = (y - vertex1.y) / (vertex2.y - vertex1.y);
- r[nIntersects] = vertex1.r + ((vertex2.r - vertex1.r) * y_dist);
- g[nIntersects] = vertex1.g + ((vertex2.g - vertex1.g) * y_dist);
- b[nIntersects] = vertex1.b + ((vertex2.b - vertex1.b) * y_dist);
- nIntersects++;
- }
- if (nIntersects != 2) {
- continue;
- }
- int min_x, max_x, start_index, end_index;
- if (inter_x[0] < inter_x[1]) {
- min_x = (int)FXSYS_floor(inter_x[0]);
- max_x = (int)FXSYS_ceil(inter_x[1]);
- start_index = 0;
- end_index = 1;
- } else {
- min_x = (int)FXSYS_floor(inter_x[1]);
- max_x = (int)FXSYS_ceil(inter_x[0]);
- start_index = 1;
- end_index = 0;
- }
- int start_x = min_x, end_x = max_x;
- if (start_x < 0) {
- start_x = 0;
- }
- if (end_x > pBitmap->GetWidth()) {
- end_x = pBitmap->GetWidth();
- }
- uint8_t* dib_buf =
- pBitmap->GetBuffer() + y * pBitmap->GetPitch() + start_x * 4;
- FX_FLOAT r_unit = (r[end_index] - r[start_index]) / (max_x - min_x);
- FX_FLOAT g_unit = (g[end_index] - g[start_index]) / (max_x - min_x);
- FX_FLOAT b_unit = (b[end_index] - b[start_index]) / (max_x - min_x);
- FX_FLOAT R = r[start_index] + (start_x - min_x) * r_unit;
- FX_FLOAT G = g[start_index] + (start_x - min_x) * g_unit;
- FX_FLOAT B = b[start_index] + (start_x - min_x) * b_unit;
- for (int x = start_x; x < end_x; x++) {
- R += r_unit;
- G += g_unit;
- B += b_unit;
- FXARGB_SETDIB(dib_buf,
- FXARGB_MAKE(alpha, (int32_t)(R * 255), (int32_t)(G * 255),
- (int32_t)(B * 255)));
- dib_buf += 4;
- }
- }
-}
-
-void DrawFreeGouraudShading(
- CFX_DIBitmap* pBitmap,
- CFX_Matrix* pObject2Bitmap,
- CPDF_Stream* pShadingStream,
- const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
- CPDF_ColorSpace* pCS,
- int alpha) {
- ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
-
- CPDF_MeshStream stream(kFreeFormGouraudTriangleMeshShading, funcs,
- pShadingStream, pCS);
- if (!stream.Load())
- return;
-
- CPDF_MeshVertex triangle[3];
- FXSYS_memset(triangle, 0, sizeof(triangle));
-
- while (!stream.BitStream()->IsEOF()) {
- CPDF_MeshVertex vertex;
- uint32_t flag = stream.GetVertex(vertex, pObject2Bitmap);
- if (flag == 0) {
- triangle[0] = vertex;
- for (int j = 1; j < 3; j++) {
- stream.GetVertex(triangle[j], pObject2Bitmap);
- }
- } else {
- if (flag == 1) {
- triangle[0] = triangle[1];
- }
- triangle[1] = triangle[2];
- triangle[2] = vertex;
- }
- DrawGouraud(pBitmap, alpha, triangle);
- }
-}
-
-void DrawLatticeGouraudShading(
- CFX_DIBitmap* pBitmap,
- CFX_Matrix* pObject2Bitmap,
- CPDF_Stream* pShadingStream,
- const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
- CPDF_ColorSpace* pCS,
- int alpha) {
- ASSERT(pBitmap->GetFormat() == FXDIB_Argb);
-
- int row_verts = pShadingStream->GetDict()->GetIntegerFor("VerticesPerRow");
- if (row_verts < 2)
- return;
-
- CPDF_MeshStream stream(kLatticeFormGouraudTriangleMeshShading, funcs,
- pShadingStream, pCS);
- if (!stream.Load())
- return;
-
- std::unique_ptr<CPDF_MeshVertex, FxFreeDeleter> vertex(
- FX_Alloc2D(CPDF_MeshVertex, row_verts, 2));
- if (!stream.GetVertexRow(vertex.get(), row_verts, pObject2Bitmap))
- return;
-
- int last_index = 0;
- while (1) {
- CPDF_MeshVertex* last_row = vertex.get() + last_index * row_verts;
- CPDF_MeshVertex* this_row = vertex.get() + (1 - last_index) * row_verts;
- if (!stream.GetVertexRow(this_row, row_verts, pObject2Bitmap))
- return;
-
- CPDF_MeshVertex triangle[3];
- for (int i = 1; i < row_verts; i++) {
- triangle[0] = last_row[i];
- triangle[1] = this_row[i - 1];
- triangle[2] = last_row[i - 1];
- DrawGouraud(pBitmap, alpha, triangle);
- triangle[2] = this_row[i];
- DrawGouraud(pBitmap, alpha, triangle);
- }
- last_index = 1 - last_index;
- }
-}
-
-struct Coon_BezierCoeff {
- float a, b, c, d;
- void FromPoints(float p0, float p1, float p2, float p3) {
- a = -p0 + 3 * p1 - 3 * p2 + p3;
- b = 3 * p0 - 6 * p1 + 3 * p2;
- c = -3 * p0 + 3 * p1;
- d = p0;
- }
- Coon_BezierCoeff first_half() {
- Coon_BezierCoeff result;
- result.a = a / 8;
- result.b = b / 4;
- result.c = c / 2;
- result.d = d;
- return result;
- }
- Coon_BezierCoeff second_half() {
- Coon_BezierCoeff result;
- result.a = a / 8;
- result.b = 3 * a / 8 + b / 4;
- result.c = 3 * a / 8 + b / 2 + c / 2;
- result.d = a / 8 + b / 4 + c / 2 + d;
- return result;
- }
- void GetPoints(float p[4]) {
- p[0] = d;
- p[1] = c / 3 + p[0];
- p[2] = b / 3 - p[0] + 2 * p[1];
- p[3] = a + p[0] - 3 * p[1] + 3 * p[2];
- }
- void GetPointsReverse(float p[4]) {
- p[3] = d;
- p[2] = c / 3 + p[3];
- p[1] = b / 3 - p[3] + 2 * p[2];
- p[0] = a + p[3] - 3 * p[2] + 3 * p[1];
- }
- void BezierInterpol(Coon_BezierCoeff& C1,
- Coon_BezierCoeff& C2,
- Coon_BezierCoeff& D1,
- 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->GetArrayFor("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->GetRectFor("BBox");
- rect.Transform(pMatrix);
- clip_rect.Intersect(rect.GetOuterRect());
- }
- 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 =
- FXSYS_round(255 * (bStroke ? pPageObj->m_GeneralState.GetStrokeAlpha()
- : pPageObj->m_GeneralState.GetFillAlpha()));
- 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,
- FXSYS_round(255 * pShadingObj->m_GeneralState.GetFillAlpha()),
- m_Options.m_ColorMode == RENDER_COLOR_ALPHA);
-}
-
-void CPDF_RenderStatus::DrawTilingPattern(CPDF_TilingPattern* pPattern,
- 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->GetDictFor("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);
-
- pdfium::base::CheckedNumeric<int> safeStartX =
- FXSYS_round(orig_x + left_offset);
- pdfium::base::CheckedNumeric<int> safeStartY =
- FXSYS_round(orig_y + top_offset);
-
- safeStartX -= clip_box.left;
- safeStartY -= clip_box.top;
- if (!safeStartX.IsValid() || !safeStartY.IsValid())
- return;
-
- start_x = safeStartX.ValueOrDie();
- start_y = safeStartY.ValueOrDie();
- }
- 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(CPDF_PathObject* pPathObj,
- const CFX_Matrix* pObj2Device,
- const 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(CPDF_PathObject* pPathObj,
- const CFX_Matrix* pObj2Device,
- int& filltype,
- FX_BOOL& bStroke) {
- if (filltype) {
- const CPDF_Color& FillColor = *pPathObj->m_ColorState.GetFillColor();
- if (FillColor.IsPattern()) {
- DrawPathWithPattern(pPathObj, pObj2Device, &FillColor, FALSE);
- filltype = 0;
- }
- }
- if (bStroke) {
- const CPDF_Color& StrokeColor = *pPathObj->m_ColorState.GetStrokeColor();
- if (StrokeColor.IsPattern()) {
- DrawPathWithPattern(pPathObj, pObj2Device, &StrokeColor, TRUE);
- bStroke = FALSE;
- }
- }
-}
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