diff options
-rwxr-xr-x | indra/integration_tests/llimage_libtest/llimage_libtest.cpp | 4 | ||||
-rwxr-xr-x | indra/llimage/llimage.cpp | 31 | ||||
-rwxr-xr-x | indra/llimage/llimage.h | 1 |
3 files changed, 36 insertions, 0 deletions
diff --git a/indra/integration_tests/llimage_libtest/llimage_libtest.cpp b/indra/integration_tests/llimage_libtest/llimage_libtest.cpp index e485136f58..cbd6ccebbf 100755 --- a/indra/integration_tests/llimage_libtest/llimage_libtest.cpp +++ b/indra/integration_tests/llimage_libtest/llimage_libtest.cpp @@ -602,6 +602,10 @@ int main(int argc, char** argv) { raw_image->filterGrayScale(); } + else if (filter_name == "saturate") + { + raw_image->filterSaturate(2.0f); + } // Save file if (out_file != out_end) diff --git a/indra/llimage/llimage.cpp b/indra/llimage/llimage.cpp index 73e6f48a8d..4028514898 100755 --- a/indra/llimage/llimage.cpp +++ b/indra/llimage/llimage.cpp @@ -955,6 +955,37 @@ void LLImageRaw::filterSepia() colorTransform(sepia); } +void LLImageRaw::filterSaturate(F32 saturation) +{ + // Matrix to Lij + LLMatrix3 r_a; + LLMatrix3 r_b; + + // 45 degre rotation around z + r_a.setRows(LLVector3(0.7071, 0.7071, 0.0), + LLVector3(-0.7071, 0.7071, 0.0), + LLVector3(0.0, 0.0, 1.0)); + // 54.73 degre rotation around y + r_b.setRows(LLVector3(0.5773, 0.0, -0.8165), + LLVector3(0.0, 1.0, 0.0), + LLVector3(0.8165, 0.0, 0.5773)); + + // Coordinate conversion + LLMatrix3 Lij = r_b * r_a; + LLMatrix3 Lij_inv = Lij; + Lij_inv.transpose(); + + // Local saturation transform + LLMatrix3 s; + s.setRows(LLVector3(saturation, 0.0, 0.0), + LLVector3(0.0, saturation, 0.0), + LLVector3(0.0, 0.0, 1.0)); + + // Global saturation transform + LLMatrix3 transfo = Lij_inv * s * Lij; + colorTransform(transfo); +} + // Filter Primitives void LLImageRaw::colorTransform(const LLMatrix3 &transform) { diff --git a/indra/llimage/llimage.h b/indra/llimage/llimage.h index d6b7e65c76..1742cf8a71 100755 --- a/indra/llimage/llimage.h +++ b/indra/llimage/llimage.h @@ -260,6 +260,7 @@ public: // Filter Operations void filterGrayScale(); void filterSepia(); + void filterSaturate(F32 s); // Filter Primitives void colorTransform(const LLMatrix3 &transform); |