ExtCPUFramebuffer::ExtCPUFramebuffer(uint32_t width, uint32_t height, PixelFormat format,
uint8_t* buffer, uint32_t size, uint32_t pitch, uint32_t offset)
: m_width(width), m_height(height), m_format(format)
{
const PixelFormatInfo& format_info = get_pixel_format_info(m_format);
m_num_planes = format_info.num_planes;
ASSERT(m_num_planes == 1);
FramebufferPlane& plane = m_planes[0];
plane.stride = pitch;
plane.size = size;
plane.offset = offset;
plane.map = buffer;
}
ExtCPUFramebuffer::ExtCPUFramebuffer(uint32_t width, uint32_t height, PixelFormat format,
uint8_t* buffer, uint32_t pitch)
: m_width(width), m_height(height), m_format(format)
{
const PixelFormatInfo& format_info = get_pixel_format_info(m_format);
m_num_planes = format_info.num_planes;
ASSERT(m_num_planes == 1);
const PixelFormatPlaneInfo& pi = format_info.planes[0];
FramebufferPlane& plane = m_planes[0];
plane.stride = pitch;
plane.size = plane.stride * height / pi.ysub;
plane.map = buffer;
}
ExtCPUFramebuffer::ExtCPUFramebuffer(uint32_t width, uint32_t height, PixelFormat format,
uint8_t* buffers[4], uint32_t sizes[4], uint32_t pitches[4], uint32_t offsets[4])
: m_width(width), m_height(height), m_format(format)
{
const PixelFormatInfo& format_info = get_pixel_format_info(m_format);
m_num_planes = format_info.num_planes;
for (unsigned i = 0; i < format_info.num_planes; ++i) {
FramebufferPlane& plane = m_planes[i];
plane.stride = pitches[i];
plane.size = sizes[i];
plane.offset = offsets[i];
plane.map = buffers[i];
}
}
void OmapFramebuffer::Create()
{
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];
uint32_t flags = OMAP_BO_SCANOUT | OMAP_BO_WC;
uint32_t size = width() * height() * pi.bitspp / 8;
struct omap_bo* bo = omap_bo_new(m_omap_card.dev(), size, flags);
if (!bo)
throw invalid_argument(string("omap_bo_new failed: ") + strerror(errno));
uint32_t stride = width() * pi.bitspp / 8;
plane.omap_bo = bo;
plane.handle = omap_bo_handle(bo);
plane.stride = stride;
plane.size = omap_bo_size(bo);
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;
int 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);
}
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);
}
