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authorTomi Valkeinen <tomi.valkeinen@ti.com>2016-02-07 10:27:47 +0200
committerTomi Valkeinen <tomi.valkeinen@ti.com>2016-02-07 10:29:29 +0200
commit86186b1cbbd531843b13f592924da0e774149f29 (patch)
treea71e57bd0a876d49994eed8043882e17d2fa5efa /libkmstest/mappedbuffer.cpp
parenta43119ea3e1ab4b589e7f6499653c16692d37e13 (diff)
add MappedBuffer & co
Diffstat (limited to 'libkmstest/mappedbuffer.cpp')
-rw-r--r--libkmstest/mappedbuffer.cpp67
1 files changed, 67 insertions, 0 deletions
diff --git a/libkmstest/mappedbuffer.cpp b/libkmstest/mappedbuffer.cpp
new file mode 100644
index 0000000..40d5f37
--- /dev/null
+++ b/libkmstest/mappedbuffer.cpp
@@ -0,0 +1,67 @@
+#include <map>
+
+#include "mappedbuffer.h"
+
+using namespace std;
+
+namespace kms {
+
+struct FormatPlaneInfo
+{
+ uint8_t bitspp; /* bits per (macro) pixel */
+ uint8_t xsub;
+ uint8_t ysub;
+};
+
+struct FormatInfo
+{
+ uint8_t num_planes;
+ struct FormatPlaneInfo planes[4];
+};
+
+static const map<PixelFormat, FormatInfo> format_info_array = {
+ /* YUV packed */
+ { PixelFormat::UYVY, { 1, { { 32, 2, 1 } }, } },
+ { PixelFormat::YUYV, { 1, { { 32, 2, 1 } }, } },
+ { PixelFormat::YVYU, { 1, { { 32, 2, 1 } }, } },
+ { PixelFormat::VYUY, { 1, { { 32, 2, 1 } }, } },
+ /* YUV semi-planar */
+ { PixelFormat::NV12, { 2, { { 8, 1, 1, }, { 16, 2, 2 } }, } },
+ { PixelFormat::NV21, { 2, { { 8, 1, 1, }, { 16, 2, 2 } }, } },
+ /* RGB16 */
+ { PixelFormat::RGB565, { 1, { { 16, 1, 1 } }, } },
+ /* RGB32 */
+ { PixelFormat::XRGB8888, { 1, { { 32, 1, 1 } }, } },
+ { PixelFormat::XBGR8888, { 1, { { 32, 1, 1 } }, } },
+ { PixelFormat::ARGB8888, { 1, { { 32, 1, 1 } }, } },
+ { PixelFormat::ABGR8888, { 1, { { 32, 1, 1 } }, } },
+};
+
+MappedCPUBuffer::MappedCPUBuffer(uint32_t width, uint32_t height, PixelFormat format)
+ : m_width(width), m_height(height), m_format(format)
+{
+ const FormatInfo& format_info = format_info_array.at(m_format);
+
+ m_num_planes = format_info.num_planes;
+
+ for (unsigned i = 0; i < format_info.num_planes; ++i) {
+ const FormatPlaneInfo& pi = format_info.planes[i];
+ FramebufferPlane& plane = m_planes[i];
+
+ plane.stride = width * pi.bitspp / 8 / pi.xsub;
+ plane.size = plane.stride * height/ pi.ysub;
+ plane.offset = 0;
+ plane.map = new uint8_t[plane.size];
+ }
+}
+
+MappedCPUBuffer::~MappedCPUBuffer()
+{
+ for (unsigned i = 0; i < m_num_planes; ++i) {
+ FramebufferPlane& plane = m_planes[i];
+
+ delete plane.map;
+ }
+}
+
+}