diff options
| -rw-r--r-- | core/fpdfapi/render/cpdf_renderstatus.cpp | 76 |
1 files changed, 34 insertions, 42 deletions
diff --git a/core/fpdfapi/render/cpdf_renderstatus.cpp b/core/fpdfapi/render/cpdf_renderstatus.cpp index 9d4ccfe787..9e8d19abf9 100644 --- a/core/fpdfapi/render/cpdf_renderstatus.cpp +++ b/core/fpdfapi/render/cpdf_renderstatus.cpp @@ -112,6 +112,37 @@ uint32_t GetValidatedOutputsCount( return funcs_outputs ? std::max(funcs_outputs, pCS->CountComponents()) : 0; } +void GetShadingSteps(float t_min, + float t_max, + const std::vector<std::unique_ptr<CPDF_Function>>& funcs, + const CPDF_ColorSpace* pCS, + int alpha, + size_t results_count, + uint32_t* rgb_array) { + ASSERT(results_count >= CountOutputsFromFunctions(funcs)); + ASSERT(results_count >= pCS->CountComponents()); + std::vector<float> result_array(results_count); + float diff = t_max - t_min; + for (int i = 0; i < kShadingSteps; ++i) { + float input = diff * i / kShadingSteps + t_min; + int offset = 0; + for (const auto& func : funcs) { + if (func) { + int nresults = 0; + if (func->Call(&input, 1, &result_array[offset], &nresults)) + offset += nresults; + } + } + float R = 0.0f; + float G = 0.0f; + float B = 0.0f; + pCS->GetRGB(result_array.data(), &R, &G, &B); + rgb_array[i] = + FXARGB_TODIB(ArgbEncode(alpha, FXSYS_round(R * 255), + FXSYS_round(G * 255), FXSYS_round(B * 255))); + } +} + void DrawAxialShading(const RetainPtr<CFX_DIBitmap>& pBitmap, CFX_Matrix* pObject2Bitmap, const CPDF_Dictionary* pDict, @@ -152,28 +183,9 @@ void DrawAxialShading(const RetainPtr<CFX_DIBitmap>& pBitmap, float y_span = end_y - start_y; float axis_len_square = (x_span * x_span) + (y_span * y_span); - ASSERT(total_results >= CountOutputsFromFunctions(funcs)); - ASSERT(total_results >= pCS->CountComponents()); - std::vector<float> result_array(total_results); uint32_t rgb_array[kShadingSteps]; - for (int i = 0; i < kShadingSteps; ++i) { - float input = (t_max - t_min) * i / kShadingSteps + t_min; - int offset = 0; - for (const auto& func : funcs) { - if (func) { - int nresults = 0; - if (func->Call(&input, 1, &result_array[offset], &nresults)) - offset += nresults; - } - } - float R = 0.0f; - float G = 0.0f; - float B = 0.0f; - pCS->GetRGB(result_array.data(), &R, &G, &B); - rgb_array[i] = - FXARGB_TODIB(ArgbEncode(alpha, FXSYS_round(R * 255), - FXSYS_round(G * 255), FXSYS_round(B * 255))); - } + GetShadingSteps(t_min, t_max, funcs, pCS, alpha, total_results, rgb_array); + int pitch = pBitmap->GetPitch(); CFX_Matrix matrix = pObject2Bitmap->GetInverse(); for (int row = 0; row < height; row++) { @@ -238,28 +250,8 @@ void DrawRadialShading(const RetainPtr<CFX_DIBitmap>& pBitmap, bEndExtend = !!pArray->GetIntegerAt(1); } - ASSERT(total_results >= CountOutputsFromFunctions(funcs)); - ASSERT(total_results >= pCS->CountComponents()); - std::vector<float> result_array(total_results); uint32_t rgb_array[kShadingSteps]; - for (int i = 0; i < kShadingSteps; ++i) { - float input = (t_max - t_min) * i / kShadingSteps + t_min; - int offset = 0; - for (const auto& func : funcs) { - if (func) { - int nresults; - if (func->Call(&input, 1, &result_array[offset], &nresults)) - offset += nresults; - } - } - float R = 0.0f; - float G = 0.0f; - float B = 0.0f; - pCS->GetRGB(result_array.data(), &R, &G, &B); - rgb_array[i] = - FXARGB_TODIB(ArgbEncode(alpha, FXSYS_round(R * 255), - FXSYS_round(G * 255), FXSYS_round(B * 255))); - } + GetShadingSteps(t_min, t_max, funcs, pCS, alpha, total_results, rgb_array); const float dx = end_x - start_x; const float dy = end_y - start_y; |