| 39 | } |
| 40 | |
| 41 | void Saturation::ApplyCustomMaskBlend(std::shared_ptr<QImage> original_image, std::shared_ptr<QImage> effected_image, |
| 42 | std::shared_ptr<QImage> mask_image, int64_t frame_number) const { |
| 43 | (void) frame_number; |
| 44 | if (!original_image || !effected_image || !mask_image) |
| 45 | return; |
| 46 | if (original_image->size() != effected_image->size() || effected_image->size() != mask_image->size()) |
| 47 | return; |
| 48 | |
| 49 | unsigned char* original_pixels = reinterpret_cast<unsigned char*>(original_image->bits()); |
| 50 | unsigned char* effected_pixels = reinterpret_cast<unsigned char*>(effected_image->bits()); |
| 51 | unsigned char* mask_pixels = reinterpret_cast<unsigned char*>(mask_image->bits()); |
| 52 | const int pixel_count = effected_image->width() * effected_image->height(); |
| 53 | |
| 54 | if (mask_invert) { |
| 55 | #pragma omp parallel for schedule(static) |
| 56 | for (int i = 0; i < pixel_count; ++i) { |
| 57 | const int idx = i * 4; |
| 58 | float factor = static_cast<float>(qGray(mask_pixels[idx], mask_pixels[idx + 1], mask_pixels[idx + 2])) / 255.0f; |
| 59 | factor = 1.0f - factor; |
| 60 | // Use a non-linear response curve for custom saturation drive mode. |
| 61 | factor = factor * factor; |
| 62 | const float inverse = 1.0f - factor; |
| 63 | |
| 64 | // Drive saturation strength with mask while preserving source alpha. |
| 65 | effected_pixels[idx] = static_cast<unsigned char>( |
| 66 | (original_pixels[idx] * inverse) + (effected_pixels[idx] * factor)); |
| 67 | effected_pixels[idx + 1] = static_cast<unsigned char>( |
| 68 | (original_pixels[idx + 1] * inverse) + (effected_pixels[idx + 1] * factor)); |
| 69 | effected_pixels[idx + 2] = static_cast<unsigned char>( |
| 70 | (original_pixels[idx + 2] * inverse) + (effected_pixels[idx + 2] * factor)); |
| 71 | effected_pixels[idx + 3] = original_pixels[idx + 3]; |
| 72 | } |
| 73 | } else { |
| 74 | #pragma omp parallel for schedule(static) |
| 75 | for (int i = 0; i < pixel_count; ++i) { |
| 76 | const int idx = i * 4; |
| 77 | float factor = static_cast<float>(qGray(mask_pixels[idx], mask_pixels[idx + 1], mask_pixels[idx + 2])) / 255.0f; |
| 78 | // Use a non-linear response curve for custom saturation drive mode. |
| 79 | factor = factor * factor; |
| 80 | const float inverse = 1.0f - factor; |
| 81 | |
| 82 | // Drive saturation strength with mask while preserving source alpha. |
| 83 | effected_pixels[idx] = static_cast<unsigned char>( |
| 84 | (original_pixels[idx] * inverse) + (effected_pixels[idx] * factor)); |
| 85 | effected_pixels[idx + 1] = static_cast<unsigned char>( |
| 86 | (original_pixels[idx + 1] * inverse) + (effected_pixels[idx + 1] * factor)); |
| 87 | effected_pixels[idx + 2] = static_cast<unsigned char>( |
| 88 | (original_pixels[idx + 2] * inverse) + (effected_pixels[idx + 2] * factor)); |
| 89 | effected_pixels[idx + 3] = original_pixels[idx + 3]; |
| 90 | } |
| 91 | } |
| 92 | } |
| 93 | |
| 94 | // Init effect settings |
| 95 | void Saturation::init_effect_details() |
nothing calls this directly
no outgoing calls
no test coverage detected