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#include <cstring>
#include <stdexcept>
#include <sys/mman.h>
#include <xf86drm.h>
#include <xf86drmMode.h>
#include <kms++/kms++.h>
using namespace std;
namespace kms
{
ExtFramebuffer::ExtFramebuffer(Card& card, uint32_t width, uint32_t height, uint8_t depth, uint8_t bpp, uint32_t stride, uint32_t handle)
:Framebuffer(card, width, height)
{
uint32_t id;
int r = drmModeAddFB(card.fd(), width, height, depth, bpp, stride, handle, &id);
if (r)
throw invalid_argument("fob");
set_id(id);
}
ExtFramebuffer::ExtFramebuffer(Card& card, uint32_t width, uint32_t height, PixelFormat format,
uint32_t handles[], uint32_t pitches[], uint32_t offsets[])
: Framebuffer(card, width, height)
{
uint32_t id;
int r = drmModeAddFB2(card.fd(), width, height, (uint32_t)format, handles, pitches, offsets, &id, 0);
if (r)
throw std::invalid_argument(string("Failed to create ExtFramebuffer: ") + strerror(r));
set_id(id);
}
ExtFramebuffer::ExtFramebuffer(Card& card, uint32_t width, uint32_t height, PixelFormat format,
int fds[4], uint32_t pitches[4], uint32_t offsets[4])
: Framebuffer(card, width, height)
{
int r;
const PixelFormatInfo& format_info = get_pixel_format_info(format);
uint32_t handles[4] = { 0 };
for (int i = 0; i < format_info.num_planes; ++i) {
r = drmPrimeFDToHandle(card.fd(), fds[i], &handles[i]);
if (r)
throw invalid_argument(string("drmPrimeFDToHandle: ") + strerror(errno));
}
uint32_t id;
r = drmModeAddFB2(card.fd(), width, height, (uint32_t)format,
handles, pitches, offsets, &id, 0);
if (r)
throw invalid_argument(string("drmModeAddFB2 failed: ") + strerror(errno));
set_id(id);
}
ExtFramebuffer::~ExtFramebuffer()
{
drmModeRmFB(card().fd(), id());
}
}
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