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Add gralloc1 support for layered images.

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Bug: 31686534
Test: manual
Change-Id: I1ceaa7834001071fff2b4a43389d6d44079464f0
This commit is contained in:
Craig Donner 2016-10-20 17:11:28 -07:00
parent 95d262a1bc
commit be3802e95e
1 changed files with 53 additions and 2 deletions
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55
include/hardware/gralloc1.h
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@ -36,7 +36,10 @@ typedef enum {
* allocate may be NULL, which instructs the device to report whether the
* given allocation is possible or not. */
GRALLOC1_CAPABILITY_TEST_ALLOCATE = 1,
GRALLOC1_LAST_CAPABILITY = 1,
/* If this capability is supported, then the implementation supports
* allocating buffers with more than one image layer. */
GRALLOC1_CAPABILITY_LAYERED_BUFFERS = 2,
GRALLOC1_LAST_CAPABILITY = 2,
} gralloc1_capability_t;
typedef enum {
@ -141,7 +144,9 @@ typedef enum {
GRALLOC1_FUNCTION_LOCK = 18,
GRALLOC1_FUNCTION_LOCK_FLEX = 19,
GRALLOC1_FUNCTION_UNLOCK = 20,
GRALLOC1_LAST_FUNCTION = 20,
GRALLOC1_FUNCTION_SET_LAYER_COUNT = 21,
GRALLOC1_FUNCTION_GET_LAYER_COUNT = 22,
GRALLOC1_LAST_FUNCTION = 22,
} gralloc1_function_descriptor_t;
typedef enum {
@ -440,6 +445,30 @@ typedef int32_t /*gralloc1_error_t*/ (*GRALLOC1_PFN_SET_FORMAT)(
gralloc1_device_t* device, gralloc1_buffer_descriptor_t descriptor,
int32_t /*android_pixel_format_t*/ format);
/* setLayerCount(..., layerCount)
* Function descriptor: GRALLOC1_FUNCTION_SET_LAYER_COUNT
* Must be provided by all gralloc1 devices that provide the
* GRALLOC1_CAPABILITY_LAYERED_BUFFERS capability.
*
* Sets the number of layers in the buffer.
*
* A buffer with multiple layers may be used as the backing store of an array
* texture. All layers of a buffer share the same characteristics (e.g.,
* dimensions, format, usage). Devices that do not support
* GRALLOC1_CAPABILITY_LAYERED_BUFFERS must allocate only buffers with a single
* layer.
*
* Parameters:
* layerCount - the desired number of layers, must be non-zero
*
* Returns GRALLOC1_ERROR_NONE or one of the following errors:
* GRALLOC1_ERROR_BAD_DESCRIPTOR - the buffer descriptor is invalid
* GRALLOC1_ERROR_BAD_VALUE - the layer count is invalid
*/
typedef int32_t /*gralloc1_error_t*/ (*GRALLOC1_PFN_SET_LAYER_COUNT)(
gralloc1_device_t* device, gralloc1_buffer_descriptor_t descriptor,
uint32_t layerCount);
/* setProducerUsage(..., usage)
* Function descriptor: GRALLOC1_FUNCTION_SET_PRODUCER_USAGE
* Must be provided by all gralloc1 devices
@ -564,6 +593,28 @@ typedef int32_t /*gralloc1_error_t*/ (*GRALLOC1_PFN_GET_FORMAT)(
gralloc1_device_t* device, buffer_handle_t descriptor,
int32_t* outFormat);
/* getLayerCount(..., outLayerCount)
* Function descriptor: GRALLOC1_FUNCTION_GET_LAYER_COUNT
* Must be provided by all gralloc1 devices that provide the
* GRALLOC1_CAPABILITY_LAYERED_BUFFERS capability.
*
* Gets the number of layers of the buffer.
*
* See setLayerCount for more information about this value.
*
* Parameters:
* outLayerCount - the number of layers in the image, must be non-NULL
*
* Returns GRALLOC1_ERROR_NONE or one of the following errors:
* GRALLOC1_ERROR_BAD_HANDLE - the buffer handle is invalid
* GRALLOC1_ERROR_UNSUPPORTED - the device is unable to retrieve the
* layer count from the buffer; see note [1] in this section's header for
* more information
*/
typedef int32_t /*gralloc1_error_t*/ (*GRALLOC1_PFN_GET_LAYER_COUNT)(
gralloc1_device_t* device, buffer_handle_t buffer,
uint32_t* outLayerCount);
/* getProducerUsage(..., outUsage)
* Function descriptor: GRALLOC1_FUNCTION_GET_PRODUCER_USAGE
* Must be provided by all gralloc1 devices