VPI - Vision Programming Interface

0.4.4 Release

Pyramid.h
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49 
56 #ifndef NV_VPI_PYRAMID_H
57 #define NV_VPI_PYRAMID_H
58 
59 #include "Export.h"
60 #include "Image.h"
61 #include "Status.h"
62 #include "Types.h"
63 
64 #include <stdint.h>
65 
99 #ifdef __cplusplus
100 extern "C" {
101 #endif
102 
104 #define VPI_MAX_PYRAMID_LEVEL_COUNT (10)
105 
110 typedef struct VPIPyramidDataRec
111 {
112  int32_t numLevels;
118 
120 #define vpiPyramidCreate VPI_APINAME(vpiPyramidCreate, 004)
121 #define vpiPyramidGetFlags VPI_APINAME(vpiPyramidGetFlags, 004)
122 #define vpiPyramidGetType VPI_APINAME(vpiPyramidGetType, 004)
123 #define vpiPyramidLock VPI_APINAME(vpiPyramidLock, 004)
124 #define vpiImageCreatePyramidLevelWrapper VPI_APINAME(vpiImageCreatePyramidLevelWrapper, 004)
125 
142 VPI_PUBLIC VPIStatus vpiPyramidCreate(uint32_t width, uint32_t height, VPIImageFormat fmt, uint32_t numLevels,
143  float scale, uint32_t flags, VPIPyramid *pyr);
144 
150 VPI_PUBLIC void vpiPyramidDestroy(VPIPyramid pyr);
151 
160 VPI_PUBLIC VPIStatus vpiPyramidGetFlags(VPIPyramid pyr, uint32_t *flags);
161 
171 
181 VPI_PUBLIC VPIStatus vpiPyramidGetNumLevels(VPIPyramid pyr, uint32_t *numLevels);
182 
192 VPI_PUBLIC VPIStatus vpiPyramidGetSize(VPIPyramid pyr, uint32_t outSize, uint32_t *outWidth, uint32_t *outHeight);
193 
209 
220 
234 VPI_PUBLIC VPIStatus vpiImageCreatePyramidLevelWrapper(VPIPyramid pyr, uint32_t level, VPIImage *img);
235 
236 #ifdef __cplusplus
237 }
238 #endif
239  // end of VPI_Pyramid
241 
242 #endif // NV_VPI_PYRAMID_H
vpiImageCreatePyramidLevelWrapper
VPIStatus vpiImageCreatePyramidLevelWrapper(VPIPyramid pyr, uint32_t level, VPIImage *img)
Creates an image that wraps one pyramid level.
vpiPyramidGetSize
VPIStatus vpiPyramidGetSize(VPIPyramid pyr, uint32_t outSize, uint32_t *outWidth, uint32_t *outHeight)
Get the image width and height in pixels (for all levels at once).
Types.h
Defines all types needed for programming with VPI.
VPI_MAX_PYRAMID_LEVEL_COUNT
#define VPI_MAX_PYRAMID_LEVEL_COUNT
Maximum number of pyramid levels.
Definition: Pyramid.h:104
VPIPyramidData::numLevels
int32_t numLevels
Number of levels (i.e.
Definition: Pyramid.h:112
vpiPyramidGetNumLevels
VPIStatus vpiPyramidGetNumLevels(VPIPyramid pyr, uint32_t *numLevels)
Get the image pyramid level count.
vpiPyramidUnlock
VPIStatus vpiPyramidUnlock(VPIPyramid pyr)
Releases the lock on a image pyramid object.
VPIImageData
Stores information about image characteristics and content.
Definition: Image.h:159
Image.h
Functions and structures for dealing with VPI images.
VPIImage
struct VPIImageImpl * VPIImage
A handle to an image.
Definition: Types.h:196
vpiPyramidCreate
VPIStatus vpiPyramidCreate(uint32_t width, uint32_t height, VPIImageFormat fmt, uint32_t numLevels, float scale, uint32_t flags, VPIPyramid *pyr)
Create an empty image pyramid instance with the specified flags.
vpiPyramidGetFlags
VPIStatus vpiPyramidGetFlags(VPIPyramid pyr, uint32_t *flags)
Returns the flags associated with the pyramid.
Status.h
Declaration of VPI status codes handling functions.
VPILockMode
VPILockMode
Defines the lock modes used by memory lock functions.
Definition: Types.h:444
VPIStatus
VPIStatus
Status codes.
Definition: Status.h:81
VPIImageFormat
VPIImageFormat
Pre-defined image formats.
Definition: ImageFormat.h:94
vpiPyramidGetType
VPIStatus vpiPyramidGetType(VPIPyramid pyr, VPIImageFormat *type)
Returns the image type of the pyramid levels.
vpiPyramidDestroy
void vpiPyramidDestroy(VPIPyramid pyr)
Destroy an image pyramid instance as well as all resources it owns.
VPIPyramidData
Stores the pyramid contents.
Definition: Pyramid.h:111
VPIPyramid
struct VPIPyramidImpl * VPIPyramid
A handle to an image pyramid.
Definition: Types.h:202
vpiPyramidLock
VPIStatus vpiPyramidLock(VPIPyramid pyr, VPILockMode lock, VPIPyramidData *out)
Acquires the lock on a pyramid object and returns pointers to each level of the pyramid.