| 0,0 → 1,224 |
|---|
| |
| #include <drmP.h> |
| #include <drm.h> |
| #include "i915_drm.h" |
| #include "i915_drv.h" |
| #include "intel_drv.h" |
| #include "bitmap.h" |
| |
| extern struct drm_device *main_device; |
| |
| struct hman bm_man; |
| |
| int init_bitmaps() |
| { |
| int ret; |
| |
| ret = init_hman(&bm_man, 1024); |
| |
| return ret; |
| }; |
| |
| |
| int create_bitmap(struct ubitmap *pbitmap, int width, int height) |
| { |
| struct drm_i915_gem_object *obj; |
| |
| bitmap_t *bitmap; |
| u32 handle; |
| u32 size; |
| u32 pitch; |
| void *uaddr; |
| |
| int ret; |
| |
| pbitmap->handle = 0; |
| pbitmap->data = NULL; |
| |
| if((width==0)||(height==0)||(width>4096)||(height>4096)) |
| goto err1; |
| |
| handle = alloc_handle(&bm_man); |
| |
| if(handle == 0) |
| goto err1; |
| |
| bitmap = CreateObject(GetPid(), sizeof(*bitmap)); |
| if( bitmap == NULL) |
| goto err1; |
| |
| hman_set_data(&bm_man, handle, bitmap); |
| |
| pitch = ALIGN(width*4,64); |
| |
| size = roundup(pitch*height, PAGE_SIZE); |
| |
| obj = i915_gem_alloc_object(main_device, size); |
| if (obj == NULL) |
| goto err2; |
| |
| ret = i915_gem_object_pin(obj, 4096, true); |
| if (ret) |
| goto err3; |
| |
| uaddr = UserAlloc(size); |
| if( uaddr == NULL) |
| goto err4; |
| else |
| { |
| u32_t *src, *dst; |
| int count; |
| |
| #define page_tabs 0xFDC00000 /* really dirty hack */ |
| |
| src = (u32_t*)obj->pages; |
| dst = &((u32_t*)page_tabs)[(u32_t)uaddr >> 12]; |
| count = size/4096; |
| |
| while(count--) |
| { |
| *dst++ = (0xFFFFF000 & *src++) | 0x207 ; // map as shared page |
| }; |
| } |
| |
| bitmap->handle = handle; |
| bitmap->width = width; |
| bitmap->height = height; |
| bitmap->pitch = pitch; |
| bitmap->gaddr = obj->gtt_offset; |
| bitmap->uaddr = uaddr; |
| bitmap->obj = obj; |
| |
| pbitmap->handle = handle; |
| pbitmap->data = uaddr; |
| return 0; |
| |
| err4: |
| // drm_gem_object_unpin; |
| err3: |
| // drm_gem_object_unreference(&obj->base); |
| err2: |
| free_handle(&bm_man, handle); |
| DestroyObject(bitmap); |
| err1: |
| return -1; |
| |
| }; |
| |
| |
| int create_video(int width, int height, u32_t *outp) |
| { |
| struct drm_i915_gem_object *obj; |
| |
| size_t size; |
| size_t pitch; |
| void *uaddr; |
| |
| int ret; |
| |
| if((width==0)||(height==0)||(width>4096)||(height>4096)) |
| goto err1; |
| |
| pitch = ALIGN(width*4,64); |
| |
| size = roundup(pitch*height, PAGE_SIZE); |
| |
| obj = i915_gem_alloc_object(main_device, size); |
| if (obj == NULL) |
| goto err2; |
| |
| ret = i915_gem_object_pin(obj, 4096, true); |
| if (ret) |
| goto err3; |
| |
| uaddr = UserAlloc(size); |
| if( uaddr == NULL) |
| goto err4; |
| else |
| { |
| u32_t *src, *dst; |
| int count; |
| |
| #define page_tabs 0xFDC00000 /* really dirty hack */ |
| |
| src = (u32_t*)obj->pages; |
| dst = &((u32_t*)page_tabs)[(u32_t)uaddr >> 12]; |
| count = size/4096; |
| |
| while(count--) |
| { |
| *dst++ = (0xFFFFF000 & *src++) | 0x207 ; // map as shared page |
| }; |
| } |
| |
| outp[0] = obj->gtt_offset; |
| outp[2] = (u32)uaddr; |
| outp[3] = pitch; |
| |
| return 0; |
| |
| err4: |
| // drm_gem_object_unpin; |
| err3: |
| // drm_gem_object_unreference(&obj->base); |
| err2: |
| err1: |
| return -1; |
| }; |
| |
| |
| int init_hman(struct hman *man, u32 count) |
| { |
| u32* data; |
| |
| data = malloc(count*sizeof(u32*)); |
| if(data) |
| { |
| int i; |
| |
| for(i=0;i < count-1;) |
| data[i] = ++i; |
| data[i] = 0; |
| |
| man->table = data; |
| man->next = 0; |
| man->avail = count; |
| man->count = count; |
| |
| return 0; |
| }; |
| return -ENOMEM; |
| }; |
| |
| u32 alloc_handle(struct hman *man) |
| { |
| u32 handle = 0; |
| |
| if(man->avail) |
| { |
| handle = man->next; |
| man->next = man->table[handle]; |
| man->avail--; |
| handle++; |
| } |
| return handle; |
| }; |
| |
| int free_handle(struct hman *man, u32 handle) |
| { |
| int ret = -1; |
| |
| handle--; |
| |
| if(handle < man->count) |
| { |
| man->table[handle] = man->next; |
| man->next = handle; |
| man->avail++; |
| ret = 0; |
| }; |
| |
| return ret; |
| }; |
| |
| |