gmgr_surface_t *GmgrCreateMemorySurface(const videomode_t *mode, uint32_t flags)
{
gmgr_surface_t *surf;
surf = malloc(sizeof(*surf));
if (surf == NULL)
return NULL;
surf->device = NULL;
surf->flags = flags;
surf->mode = *mode;
surf->base = VmmAlloc(PAGE_ALIGN_UP(mode->bytesPerLine * mode->height) / PAGE_SIZE,
NULL,
VM_MEM_USER | VM_MEM_READ | VM_MEM_WRITE);
if (surf->base == NULL)
{
free(surf);
return NULL;
}
if (!FramebufCreateSurface(mode, surf->base, &surf->surf))
{
VmmFree(surf->base);
free(surf);
return NULL;
}
return surf;
}
void *__morecore(size_t *bytes)
{
*bytes = max(PAGE_ALIGN_UP(*bytes), 4 * PAGE_SIZE);
return VmmAlloc(*bytes / PAGE_SIZE,
0,
VM_MEM_USER | VM_MEM_READ | VM_MEM_WRITE);
}
static void *aligned_alloc(size_t bytes)
{
return VmmAlloc(PAGE_ALIGN_UP(bytes) / PAGE_SIZE, NULL, VM_MEM_READ | VM_MEM_WRITE);
}
