diff options
Diffstat (limited to 'src/cam/kms_sink.cpp')
| -rw-r--r-- | src/cam/kms_sink.cpp | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/src/cam/kms_sink.cpp b/src/cam/kms_sink.cpp index 8c0b79c6..658192ef 100644 --- a/src/cam/kms_sink.cpp +++ b/src/cam/kms_sink.cpp @@ -7,10 +7,12 @@ #include "kms_sink.h" +#include <array> #include <algorithm> #include <assert.h> #include <iostream> #include <memory> +#include <stdint.h> #include <string.h> #include <libcamera/camera.h> @@ -65,8 +67,32 @@ KMSSink::KMSSink(const std::string &connectorName) void KMSSink::mapBuffer(libcamera::FrameBuffer *buffer) { + std::array<uint32_t, 4> strides = {}; + + /* \todo Should libcamera report per-plane strides ? */ + unsigned int uvStrideMultiplier; + + switch (format_) { + case libcamera::formats::NV24: + case libcamera::formats::NV42: + uvStrideMultiplier = 4; + break; + case libcamera::formats::YUV420: + case libcamera::formats::YVU420: + case libcamera::formats::YUV422: + uvStrideMultiplier = 1; + break; + default: + uvStrideMultiplier = 2; + break; + } + + strides[0] = stride_; + for (unsigned int i = 1; i < buffer->planes().size(); ++i) + strides[i] = stride_ * uvStrideMultiplier / 2; + std::unique_ptr<DRM::FrameBuffer> drmBuffer = - dev_.createFrameBuffer(*buffer, format_, size_, stride_); + dev_.createFrameBuffer(*buffer, format_, size_, strides); if (!drmBuffer) return; |