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-rw-r--r--libkms++/dumbframebuffer.cpp137
1 files changed, 0 insertions, 137 deletions
diff --git a/libkms++/dumbframebuffer.cpp b/libkms++/dumbframebuffer.cpp
deleted file mode 100644
index fcd01d0..0000000
--- a/libkms++/dumbframebuffer.cpp
+++ /dev/null
@@ -1,137 +0,0 @@
-
-#include <cstring>
-#include <stdexcept>
-#include <sys/mman.h>
-#include <xf86drm.h>
-#include <xf86drmMode.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <drm_fourcc.h>
-#include <drm.h>
-#include <drm_mode.h>
-
-#include "kms++.h"
-
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-
-using namespace std;
-
-namespace kms
-{
-
-DumbFramebuffer::DumbFramebuffer(Card &card, uint32_t width, uint32_t height, const string& fourcc)
- :DumbFramebuffer(card, width, height, FourCCToPixelFormat(fourcc))
-{
-}
-
-DumbFramebuffer::DumbFramebuffer(Card& card, uint32_t width, uint32_t height, PixelFormat format)
- :Framebuffer(card, width, height), m_format(format)
-{
- Create();
-}
-
-DumbFramebuffer::~DumbFramebuffer()
-{
- Destroy();
-}
-
-void DumbFramebuffer::Create()
-{
- int r;
-
- const PixelFormatInfo& format_info = get_pixel_format_info(m_format);
-
- m_num_planes = format_info.num_planes;
-
- for (int i = 0; i < format_info.num_planes; ++i) {
- const PixelFormatPlaneInfo& pi = format_info.planes[i];
- FramebufferPlane& plane = m_planes[i];
-
- /* create dumb buffer */
- struct drm_mode_create_dumb creq = drm_mode_create_dumb();
- creq.width = width();
- creq.height = height() / pi.ysub;
- creq.bpp = pi.bitspp;
- r = drmIoctl(card().fd(), DRM_IOCTL_MODE_CREATE_DUMB, &creq);
- if (r)
- throw invalid_argument(string("DRM_IOCTL_MODE_CREATE_DUMB failed") + strerror(errno));
-
- plane.handle = creq.handle;
- plane.stride = creq.pitch;
- plane.size = creq.height * creq.pitch;
- plane.offset = 0;
- plane.map = 0;
- plane.prime_fd = -1;
- }
-
- /* create framebuffer object for the dumb-buffer */
- uint32_t bo_handles[4] = { m_planes[0].handle, m_planes[1].handle };
- uint32_t pitches[4] = { m_planes[0].stride, m_planes[1].stride };
- uint32_t offsets[4] = { m_planes[0].offset, m_planes[1].offset };
- uint32_t id;
- r = drmModeAddFB2(card().fd(), width(), height(), (uint32_t)format(),
- bo_handles, pitches, offsets, &id, 0);
- if (r)
- throw invalid_argument(string("drmModeAddFB2 failed: ") + strerror(errno));
-
- set_id(id);
-}
-
-void DumbFramebuffer::Destroy()
-{
- /* delete framebuffer */
- drmModeRmFB(card().fd(), id());
-
- for (uint i = 0; i < m_num_planes; ++i) {
- FramebufferPlane& plane = m_planes[i];
-
- /* unmap buffer */
- if (plane.map)
- munmap(plane.map, plane.size);
-
- /* delete dumb buffer */
- struct drm_mode_destroy_dumb dreq = drm_mode_destroy_dumb();
- dreq.handle = plane.handle;
- drmIoctl(card().fd(), DRM_IOCTL_MODE_DESTROY_DUMB, &dreq);
- if (plane.prime_fd >= 0)
- ::close(plane.prime_fd);
- }
-}
-
-uint8_t* DumbFramebuffer::map(unsigned plane)
-{
- FramebufferPlane& p = m_planes[plane];
-
- if (p.map)
- return p.map;
-
- /* prepare buffer for memory mapping */
- struct drm_mode_map_dumb mreq = drm_mode_map_dumb();
- mreq.handle = p.handle;
- int r = drmIoctl(card().fd(), DRM_IOCTL_MODE_MAP_DUMB, &mreq);
- if (r)
- throw invalid_argument(string("DRM_IOCTL_MODE_MAP_DUMB failed") + strerror(errno));
-
- /* perform actual memory mapping */
- p.map = (uint8_t *)mmap(0, p.size, PROT_READ | PROT_WRITE, MAP_SHARED,
- card().fd(), mreq.offset);
- if (p.map == MAP_FAILED)
- throw invalid_argument(string("mmap failed: ") + strerror(errno));
-
- return p.map;
-}
-
-int DumbFramebuffer::prime_fd(unsigned int plane)
-{
- if (m_planes[plane].prime_fd >= 0)
- return m_planes[plane].prime_fd;
-
- int r = drmPrimeHandleToFD(card().fd(), m_planes[plane].handle,
- DRM_CLOEXEC, &m_planes[plane].prime_fd);
- if (r)
- throw std::runtime_error("drmPrimeHandleToFD failed");
-
- return m_planes[plane].prime_fd;
-}
-
-}