capi/xcam_handle.cpp - platform/external/libxcam - Gitiles

 /*
  * xcam_handle.cpp - xcam handle implementation
  *
  *  Copyright (c) 2017 Intel Corporation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  * Author: Wind Yuan <feng.yuan@intel.com>
  */

 #include <xcam_utils.h>
 #include <xcam_handle.h>
 #include <dma_video_buffer.h>
 #include "context_priv.h"
 #include <stdarg.h>
 #if HAVE_LIBDRM
 #include <drm_bo_buffer.h>
 #endif

 using namespace XCam;

 XCamHandle *
 xcam_create_handle (const char *name)
 {
     ContextBase *context = NULL;

     if (handle_name_equal (name, HandleType3DNR)) {
         context = new NR3DContext;
     } else if (handle_name_equal (name, HandleTypeWaveletNR)) {
         context = new NRWaveletContext;
     } else if (handle_name_equal (name, HandleTypeFisheye)) {
         context = new FisheyeContext;
     } else if (handle_name_equal (name, HandleTypeDefog)) {
         context = new DefogContext;
     } else if (handle_name_equal (name, HandleTypeDVS)) {
         context = new DVSContext;
     } else if (handle_name_equal (name, HandleTypeStitch)) {
         context = new StitchContext;
     } else {
         XCAM_LOG_ERROR ("create handle failed with unsupported type:%s", name);
         return NULL;
     }

     return HANDLE_CAST (context);
 }

 void
 xcam_destroy_handle (XCamHandle *handle)
 {
     if (handle)
         delete CONTEXT_BASE_CAST (handle);
 }

 XCamReturn
 xcam_handle_init (XCamHandle *handle)
 {
     ContextBase *context = CONTEXT_BASE_CAST (handle);
     SmartPtr<CLImageHandler> handler_ptr;
     XCamReturn ret = XCAM_RETURN_NO_ERROR;

     XCAM_FAIL_RETURN (
         ERROR, context, XCAM_RETURN_ERROR_PARAM,
         "xcam_handler_init failed, handle can NOT be NULL, did you have xcam_create_handler first?");

     ret = context->init_handler ();
     XCAM_FAIL_RETURN (
         ERROR, ret == XCAM_RETURN_NO_ERROR, ret,
         "xcam_handler_init, create handle ptr(%s) failed", context->get_type_name ());

     return XCAM_RETURN_NO_ERROR;
 }

 XCamReturn
 xcam_handle_uinit (XCamHandle *handle)
 {
     ContextBase *context = CONTEXT_BASE_CAST (handle);

     XCAM_FAIL_RETURN (
         ERROR, context, XCAM_RETURN_ERROR_PARAM,
         "xcam_handler_uinit failed, handle can NOT be NULL");

     return context->uinit_handler ();
 }

 XCamReturn
 xcam_handle_get_usage (XCamHandle *handle, char *usage_buf, int *usage_len)
 {
     ContextBase *context = CONTEXT_BASE_CAST (handle);
     XCAM_FAIL_RETURN (
         ERROR, context, XCAM_RETURN_ERROR_PARAM,
         "xcam_handle_get_usage failed, handle can NOT be NULL");

     const char *usage = context->get_usage ();
     int len = strlen (usage) + 1;
     if (len < *usage_len)
         len = *usage_len;
     strncpy (usage_buf, usage, len - 1);
     *usage_len = len;
     return XCAM_RETURN_NO_ERROR;
 }

 XCamReturn
 xcam_handle_set_parameters (
     XCamHandle *handle, const char *field, ...)
 {
     ContextBase *context = CONTEXT_BASE_CAST (handle);
     ContextParams params;

     XCAM_FAIL_RETURN (
         ERROR, context, XCAM_RETURN_ERROR_PARAM,
         "xcam_handle_set_parameters failed, handle can NOT be NULL");

     const char *vfield, *vvalue;
     vfield = field;
     va_list args;
     va_start (args, field);
     while (vfield) {
         vvalue = va_arg (args, const char *);
         XCAM_FAIL_RETURN (
             ERROR, vvalue, XCAM_RETURN_ERROR_PARAM,
             "xcam_handle(%s) set_parameters failed, param(field:%s) value should never be NULL",
             context->get_type_name (), vfield);

         params[vfield] = vvalue;
         vfield = va_arg (args, const char *);
     }
     va_end (args);

     return context->set_parameters (params);
 }

 SmartPtr<VideoBuffer>
 external_buf_to_drm_buf (XCamVideoBuffer *buf)
 {
 #if HAVE_LIBDRM
     SmartPtr<DrmDisplay> display = DrmDisplay::instance ();
     SmartPtr<DmaVideoBuffer> dma_buf;
     SmartPtr<VideoBuffer> drm_buf;
     SmartPtr<VideoBuffer> video_buf;

     dma_buf = external_buf_to_dma_buf (buf);

     XCAM_FAIL_RETURN (
         ERROR, dma_buf.ptr (), NULL,
         "external_buf_to_drm_buf failed");

     video_buf = dma_buf;
     XCAM_ASSERT (display.ptr ());
     drm_buf = display->convert_to_drm_bo_buf (display, video_buf);
     return drm_buf;
 #else
     XCAM_LOG_ERROR ("VideoBuffer doesn't support drm buf");

     XCAM_UNUSED (buf);
     return NULL;
 #endif
 }

 SmartPtr<VideoBuffer>
 copy_external_buf_to_drm_buf (XCamHandle *handle, XCamVideoBuffer *buf)
 {
     if (!handle || !buf) {
         XCAM_LOG_WARNING ("xcam handle can NOT be NULL");
         return NULL;
     }

     ContextBase *context = CONTEXT_BASE_CAST (handle);
     if (!context) {
         XCAM_LOG_WARNING ("xcam handle context can NOT be NULL");
         return NULL;
     }

     const XCamVideoBufferInfo src_info = buf->info;
     uint8_t* src = buf->map (buf);
     uint8_t* p_src = src;
     if (!src) {
         XCAM_LOG_WARNING ("xcam handle map buffer failed");
         return NULL;
     }
     uint32_t height = src_info.height;

     SmartPtr<BufferPool> buf_pool = context->get_input_buffer_pool();
     XCAM_ASSERT (buf_pool.ptr ());
     SmartPtr<VideoBuffer> video_buf = buf_pool->get_buffer (buf_pool);
     XCAM_ASSERT (video_buf.ptr ());
     const XCamVideoBufferInfo dest_info = video_buf->get_video_info ();

     uint8_t* dest = video_buf->map ();
     uint8_t* p_dest = dest;

     for (uint32_t index = 0; index < src_info.components; index++) {
         src += (int32_t)src_info.offsets[index];
         p_src = src;

         dest += dest_info.offsets[index];
         p_dest = dest;
         if (src_info.format == V4L2_PIX_FMT_NV12) {
             height = height >> index;
         }
         for (uint32_t i = 0; i < height; i++) {
             memcpy (p_dest, p_src, src_info.strides[index]);
             p_src += src_info.strides[index];
             p_dest += dest_info.strides[index];
         }
     }

     buf->unmap (buf);
     video_buf->unmap ();

     return video_buf;
 }

 XCamReturn
 xcam_handle_execute (XCamHandle *handle, XCamVideoBuffer *buf_in, XCamVideoBuffer **buf_out)
 {
     ContextBase *context = CONTEXT_BASE_CAST (handle);
     SmartPtr<VideoBuffer> input, output;

     XCAM_FAIL_RETURN (
         ERROR, context && buf_in && buf_out, XCAM_RETURN_ERROR_PARAM,
         "xcam_handle_execute failed, either of handle/buf_in/buf_out can NOT be NULL");

     XCAM_FAIL_RETURN (
         ERROR, context->get_handler().ptr (), XCAM_RETURN_ERROR_PARAM,
         "context (%s) failed, handler was not initialized", context->get_type_name ());

     if (buf_in->mem_type == XCAM_MEM_TYPE_GPU) {
         input = external_buf_to_drm_buf (buf_in);
     } else {
         input = copy_external_buf_to_drm_buf (handle, buf_in);
     }
     XCAM_FAIL_RETURN (
         ERROR, input.ptr (), XCAM_RETURN_ERROR_MEM,
         "xcam_handle(%s) execute failed, buf_in convert to DRM buffer failed.",
         context->get_type_name ());

     if (*buf_out) {
         output = external_buf_to_drm_buf (*buf_out);
         XCAM_FAIL_RETURN (
             ERROR, output.ptr (), XCAM_RETURN_ERROR_MEM,
             "xcam_handle(%s) execute failed, buf_out set but convert to DRM buffer failed.",
             context->get_type_name ());
     }

     XCamReturn ret = context->execute (input, output);

     XCAM_FAIL_RETURN (
         ERROR, ret == XCAM_RETURN_NO_ERROR || ret == XCAM_RETURN_BYPASS,
         ret,
         "context (%s) failed, handler execute failed", context->get_type_name ());

     if (*buf_out == NULL && output.ptr ()) {
         XCamVideoBuffer *new_buf = convert_to_external_buffer (output);
         XCAM_FAIL_RETURN (
             ERROR, new_buf, XCAM_RETURN_ERROR_MEM,
             "xcam_handle(%s) execute failed, out buffer can't convert to external buffer.",
             context->get_type_name ());
         *buf_out = new_buf;
     }
     return ret;
 }
	/*
	* xcam_handle.cpp - xcam handle implementation
	*
	* Copyright (c) 2017 Intel Corporation
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*
	* Author: Wind Yuan <feng.yuan@intel.com>
	*/

	#include <xcam_utils.h>
	#include <xcam_handle.h>
	#include <dma_video_buffer.h>
	#include "context_priv.h"
	#include <stdarg.h>
	#if HAVE_LIBDRM
	#include <drm_bo_buffer.h>
	#endif

	using namespace XCam;

	XCamHandle *
	xcam_create_handle (const char *name)
	{
	ContextBase *context = NULL;

	if (handle_name_equal (name, HandleType3DNR)) {
	context = new NR3DContext;
	} else if (handle_name_equal (name, HandleTypeWaveletNR)) {
	context = new NRWaveletContext;
	} else if (handle_name_equal (name, HandleTypeFisheye)) {
	context = new FisheyeContext;
	} else if (handle_name_equal (name, HandleTypeDefog)) {
	context = new DefogContext;
	} else if (handle_name_equal (name, HandleTypeDVS)) {
	context = new DVSContext;
	} else if (handle_name_equal (name, HandleTypeStitch)) {
	context = new StitchContext;
	} else {
	XCAM_LOG_ERROR ("create handle failed with unsupported type:%s", name);
	return NULL;
	}

	return HANDLE_CAST (context);
	}

	void
	xcam_destroy_handle (XCamHandle *handle)
	{
	if (handle)
	delete CONTEXT_BASE_CAST (handle);
	}

	XCamReturn
	xcam_handle_init (XCamHandle *handle)
	{
	ContextBase *context = CONTEXT_BASE_CAST (handle);
	SmartPtr<CLImageHandler> handler_ptr;
	XCamReturn ret = XCAM_RETURN_NO_ERROR;

	XCAM_FAIL_RETURN (
	ERROR, context, XCAM_RETURN_ERROR_PARAM,
	"xcam_handler_init failed, handle can NOT be NULL, did you have xcam_create_handler first?");

	ret = context->init_handler ();
	XCAM_FAIL_RETURN (
	ERROR, ret == XCAM_RETURN_NO_ERROR, ret,
	"xcam_handler_init, create handle ptr(%s) failed", context->get_type_name ());

	return XCAM_RETURN_NO_ERROR;
	}

	XCamReturn
	xcam_handle_uinit (XCamHandle *handle)
	{
	ContextBase *context = CONTEXT_BASE_CAST (handle);

	XCAM_FAIL_RETURN (
	ERROR, context, XCAM_RETURN_ERROR_PARAM,
	"xcam_handler_uinit failed, handle can NOT be NULL");

	return context->uinit_handler ();
	}

	XCamReturn
	xcam_handle_get_usage (XCamHandle handle, char usage_buf, int *usage_len)
	{
	ContextBase *context = CONTEXT_BASE_CAST (handle);
	XCAM_FAIL_RETURN (
	ERROR, context, XCAM_RETURN_ERROR_PARAM,
	"xcam_handle_get_usage failed, handle can NOT be NULL");

	const char *usage = context->get_usage ();
	int len = strlen (usage) + 1;
	if (len < *usage_len)
	len = *usage_len;
	strncpy (usage_buf, usage, len - 1);
	*usage_len = len;
	return XCAM_RETURN_NO_ERROR;
	}

	XCamReturn
	xcam_handle_set_parameters (
	XCamHandle handle, const char field, ...)
	{
	ContextBase *context = CONTEXT_BASE_CAST (handle);
	ContextParams params;

	XCAM_FAIL_RETURN (
	ERROR, context, XCAM_RETURN_ERROR_PARAM,
	"xcam_handle_set_parameters failed, handle can NOT be NULL");

	const char vfield, vvalue;
	vfield = field;
	va_list args;
	va_start (args, field);
	while (vfield) {
	vvalue = va_arg (args, const char *);
	XCAM_FAIL_RETURN (
	ERROR, vvalue, XCAM_RETURN_ERROR_PARAM,
	"xcam_handle(%s) set_parameters failed, param(field:%s) value should never be NULL",
	context->get_type_name (), vfield);

	params[vfield] = vvalue;
	vfield = va_arg (args, const char *);
	}
	va_end (args);

	return context->set_parameters (params);
	}

	SmartPtr<VideoBuffer>
	external_buf_to_drm_buf (XCamVideoBuffer *buf)
	{
	#if HAVE_LIBDRM
	SmartPtr<DrmDisplay> display = DrmDisplay::instance ();
	SmartPtr<DmaVideoBuffer> dma_buf;
	SmartPtr<VideoBuffer> drm_buf;
	SmartPtr<VideoBuffer> video_buf;

	dma_buf = external_buf_to_dma_buf (buf);

	XCAM_FAIL_RETURN (
	ERROR, dma_buf.ptr (), NULL,
	"external_buf_to_drm_buf failed");

	video_buf = dma_buf;
	XCAM_ASSERT (display.ptr ());
	drm_buf = display->convert_to_drm_bo_buf (display, video_buf);
	return drm_buf;
	#else
	XCAM_LOG_ERROR ("VideoBuffer doesn't support drm buf");

	XCAM_UNUSED (buf);
	return NULL;
	#endif
	}

	SmartPtr<VideoBuffer>
	copy_external_buf_to_drm_buf (XCamHandle handle, XCamVideoBuffer buf)
	{
	if (!handle \|\| !buf) {
	XCAM_LOG_WARNING ("xcam handle can NOT be NULL");
	return NULL;
	}

	ContextBase *context = CONTEXT_BASE_CAST (handle);
	if (!context) {
	XCAM_LOG_WARNING ("xcam handle context can NOT be NULL");
	return NULL;
	}

	const XCamVideoBufferInfo src_info = buf->info;
	uint8_t* src = buf->map (buf);
	uint8_t* p_src = src;
	if (!src) {
	XCAM_LOG_WARNING ("xcam handle map buffer failed");
	return NULL;
	}
	uint32_t height = src_info.height;

	SmartPtr<BufferPool> buf_pool = context->get_input_buffer_pool();
	XCAM_ASSERT (buf_pool.ptr ());
	SmartPtr<VideoBuffer> video_buf = buf_pool->get_buffer (buf_pool);
	XCAM_ASSERT (video_buf.ptr ());
	const XCamVideoBufferInfo dest_info = video_buf->get_video_info ();

	uint8_t* dest = video_buf->map ();
	uint8_t* p_dest = dest;

	for (uint32_t index = 0; index < src_info.components; index++) {
	src += (int32_t)src_info.offsets[index];
	p_src = src;

	dest += dest_info.offsets[index];
	p_dest = dest;
	if (src_info.format == V4L2_PIX_FMT_NV12) {
	height = height >> index;
	}
	for (uint32_t i = 0; i < height; i++) {
	memcpy (p_dest, p_src, src_info.strides[index]);
	p_src += src_info.strides[index];
	p_dest += dest_info.strides[index];
	}
	}

	buf->unmap (buf);
	video_buf->unmap ();

	return video_buf;
	}

	XCamReturn
	xcam_handle_execute (XCamHandle handle, XCamVideoBuffer buf_in, XCamVideoBuffer **buf_out)
	{
	ContextBase *context = CONTEXT_BASE_CAST (handle);
	SmartPtr<VideoBuffer> input, output;

	XCAM_FAIL_RETURN (
	ERROR, context && buf_in && buf_out, XCAM_RETURN_ERROR_PARAM,
	"xcam_handle_execute failed, either of handle/buf_in/buf_out can NOT be NULL");

	XCAM_FAIL_RETURN (
	ERROR, context->get_handler().ptr (), XCAM_RETURN_ERROR_PARAM,
	"context (%s) failed, handler was not initialized", context->get_type_name ());

	if (buf_in->mem_type == XCAM_MEM_TYPE_GPU) {
	input = external_buf_to_drm_buf (buf_in);
	} else {
	input = copy_external_buf_to_drm_buf (handle, buf_in);
	}
	XCAM_FAIL_RETURN (
	ERROR, input.ptr (), XCAM_RETURN_ERROR_MEM,
	"xcam_handle(%s) execute failed, buf_in convert to DRM buffer failed.",
	context->get_type_name ());

	if (*buf_out) {
	output = external_buf_to_drm_buf (*buf_out);
	XCAM_FAIL_RETURN (
	ERROR, output.ptr (), XCAM_RETURN_ERROR_MEM,
	"xcam_handle(%s) execute failed, buf_out set but convert to DRM buffer failed.",
	context->get_type_name ());
	}

	XCamReturn ret = context->execute (input, output);

	XCAM_FAIL_RETURN (
	ERROR, ret == XCAM_RETURN_NO_ERROR \|\| ret == XCAM_RETURN_BYPASS,
	ret,
	"context (%s) failed, handler execute failed", context->get_type_name ());

	if (*buf_out == NULL && output.ptr ()) {
	XCamVideoBuffer *new_buf = convert_to_external_buffer (output);
	XCAM_FAIL_RETURN (
	ERROR, new_buf, XCAM_RETURN_ERROR_MEM,
	"xcam_handle(%s) execute failed, out buffer can't convert to external buffer.",
	context->get_type_name ());
	*buf_out = new_buf;
	}
	return ret;
	}