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);
}
static int callCompute_Linux()
{
Mx_Compute *compute = NULL;
int drmFd = 0;
struct omap_device *dev = NULL;
struct omap_bo *compute_bo = NULL;
struct omap_bo *inBuf_bo = NULL;
struct omap_bo *outBuf_bo = NULL;
uint32_t * inBufPtr = NULL;
uint32_t * outBufPtr = NULL;
int status = 0;
int size;
uint32_t val;
int i;
int32_t ret;
/* On Linux, use omapdrm driver to get a Tiler buffer for shared memory */
drmFd = drmOpen("omapdrm", NULL);
if (drmFd < 0) {
fprintf(stderr, "could not open omapdrm device: %d: %s\n",
errno, strerror(errno));
return 1;
}
dev = omap_device_new(drmFd);
if (!dev) {
fprintf(stderr, "could not get device from fd\n");
goto leave;
}
/* allocate a compute structure in shared memory and get a pointer */
compute_bo = omap_bo_new(dev, sizeof(Mx_Compute), OMAP_BO_CACHED);
if (compute_bo) {
compute = (Mx_Compute *)omap_bo_map(compute_bo);
}
else {
fprintf(stderr, "failed to allocate omap_bo\n");
}
if (compute == NULL) {
fprintf(stderr, "failed to map omap_bo to user space\n");
goto leave;
}
/* initialize compute structure */
compute->coef = 0x80400000;
compute->key = 0xABA0;
compute->size = 0x1000;
compute->inBuf = NULL;
compute->outBuf = NULL;
/* allocate an input buffer in shared memory */
size = compute->size * sizeof(uint32_t);
inBuf_bo = omap_bo_new(dev, size, OMAP_BO_CACHED);
if (inBuf_bo) {
inBufPtr = (uint32_t *)omap_bo_map(inBuf_bo);
}
else {
fprintf(stderr, "failed to allocate inBuf_bo\n");
}
if (inBufPtr == NULL) {
printf("mmrpc_test: Error: inBufPtr == NULL\n");
status = -1;
goto leave;
}
/* fill input buffer with seed value */
for (i = 0; i < compute->size; i++) {
inBufPtr[i] = 0x2010;
}
/* allocate an output buffer in shared memory */
outBuf_bo = omap_bo_new(dev, size, OMAP_BO_CACHED);
if (outBuf_bo) {
outBufPtr = (uint32_t *)omap_bo_map(outBuf_bo);
}
else {
fprintf(stderr, "failed to allocate outBuf_bo handle\n");
}
if (outBufPtr == NULL) {
printf("mmrpc_test: Error: outBufPtr == NULL\n");
status = -1;
goto leave;
}
/* clear output buffer */
for (i = 0; i < compute->size; i++) {
outBufPtr[i] = 0;
}
compute->inBuf = (uint32_t *)inBufPtr;
compute->outBuf = (uint32_t *)outBufPtr;
/* print some debug info */
printf("mmrpc_test: calling Mx_compute(0x%x)\n", (unsigned int)compute);
printf("mmrpc_test: compute->coef=0x%x\n", compute->coef);
printf("mmrpc_test: compute->key=0x%x\n", compute->key);
printf("mmrpc_test: compute->size=0x%x\n", compute->size);
printf("mmrpc_test: compute->inBuf=0x%x\n", (unsigned int)compute->inBuf);
printf("mmrpc_test: compute->outBuf=0x%x\n", (unsigned int)compute->outBuf);
/* process the buffer */
ret = Mx_compute_Linux(compute, omap_bo_dmabuf(compute_bo),
omap_bo_dmabuf(inBuf_bo),
omap_bo_dmabuf(outBuf_bo));
if (ret < 0) {
status = -1;
printf("mmrpc_test: Error: Mx_Compute() failed\n");
goto leave;
}
printf("mmrpc_test: after Mx_compute(0x%x)\n", (unsigned int)compute);
printf("mmrpc_test: compute->coef=0x%x\n", compute->coef);
printf("mmrpc_test: compute->key=0x%x\n", compute->key);
printf("mmrpc_test: compute->size=0x%x\n", compute->size);
printf("mmrpc_test: compute->inBuf=0x%x\n", (unsigned int)compute->inBuf);
printf("mmrpc_test: compute->outBuf=0x%x\n", (unsigned int)compute->outBuf);
printf("mmrpc_test: compute->inBuf[0]=0x%x\n",
(unsigned int)compute->inBuf[0]);
printf("mmrpc_test: compute->outBuf[0]=0x%x\n",
(unsigned int)compute->outBuf[0]);
/* check the output buffer */
for (i = 0; i < compute->size; i++) {
val = outBufPtr[i] | compute->coef;
if (outBufPtr[i] != val) {
status = -1;
printf("mmrpc_test: Error: incorrect outBuf\n");
break;
}
}
leave:
if (outBuf_bo) {
omap_bo_del(outBuf_bo);
}
if (inBuf_bo) {
omap_bo_del(inBuf_bo);
}
if (compute_bo) {
omap_bo_del(compute_bo);
}
if (dev) {
omap_device_del(dev);
}
if (drmFd) {
close(drmFd);
}
return (status);
}
