322 lines
8.6 KiB
C
322 lines
8.6 KiB
C
/****************************************************************************
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*
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* Copyright 2012 - 2020 Vivante Corporation, Santa Clara, California.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* 'Software'), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject
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* to the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL VIVANTE AND/OR ITS SUPPLIERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*****************************************************************************/
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#include "elm_precom.h"
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#include "vg_lite.h"
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#if !DDRLESS
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static vg_lite_buffer_format_t _buffer_format_to_vglite(ELM_BUFFER_FORMAT format)
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{
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vg_lite_buffer_format_t fmt;
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switch (format) {
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case ELM_BUFFER_FORMAT_RGBA8888:
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fmt = VG_LITE_RGBA8888;
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break;
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case ELM_BUFFER_FORMAT_RGBX8888:
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fmt = VG_LITE_RGBX8888;
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break;
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case ELM_BUFFER_FORMAT_BGRA8888:
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fmt = VG_LITE_BGRA8888;
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break;
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case ELM_BUFFER_FORMAT_BGRX8888:
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fmt = VG_LITE_BGRX8888;
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break;
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case ELM_BUFFER_FORMAT_RGB565:
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fmt = VG_LITE_RGB565;
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break;
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case ELM_BUFFER_FORMAT_BGR565:
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fmt = VG_LITE_BGR565;
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break;
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case ELM_BUFFER_FORMAT_RGBA4444:
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fmt = VG_LITE_RGBA4444;
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break;
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case ELM_BUFFER_FORMAT_BGRA4444:
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fmt = VG_LITE_BGRA4444;
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break;
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default:
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fmt = VG_LITE_RGBA8888;
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break;
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}
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return fmt;
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}
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#endif
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/*!
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@abstract Create internal render buffer.
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@discussion
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This functiois is to create an internal render buffer for Elementary rendering, ussually it's not for direct display.
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The buffer which is displayed on pannel is wrapped up by another API, whose address is managed by display controller side.
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@param width
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The buffer's width.
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@param height
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The buffer's height.
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@param format
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The buffer's format, check enumeration of ELM_BUFFER_FORMAT.
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@return
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The buffer handle.
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*/
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ElmBuffer ElmCreateBuffer(unsigned int width, unsigned int height, ELM_BUFFER_FORMAT format)
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{
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#if !DDRLESS
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el_Obj_Buffer *buffer_obj;
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vg_lite_buffer_t *buffer;
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vg_lite_error_t error;
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ElmHandle handle = ELM_NULL_HANDLE;
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do {
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/* Allocate ebo object. */
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buffer_obj = (el_Obj_Buffer *)calloc(1,sizeof(el_Obj_Buffer));
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if (buffer_obj != NULL) {
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buffer_obj->object.type = ELM_OBJECT_TYPE_BUF;
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/* Allocate the buffer. */
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buffer = &buffer_obj->buffer;
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memset(buffer, 0, sizeof(vg_lite_buffer_t));
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buffer->width = width;
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buffer->height = height;
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buffer->format = (vg_lite_buffer_format_t)format;
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error = vg_lite_allocate(buffer);
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if (error)
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goto error_exit;
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JUMP_IF_NON_ZERO_VALUE(add_object((el_Object *)buffer_obj), error_exit);
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handle = buffer_obj->object.handle;
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}
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} while(0);
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return handle;
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error_exit:
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vg_lite_free(buffer);
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free(buffer_obj);
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return ELM_NULL_HANDLE;
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#else
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return ELM_NULL_HANDLE;
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#endif
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}
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/*!
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@abstract Wrap a customized buffer.
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@discussion
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The application may wrap a user created buffer by giving the information of
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the buffer including the size, the memory addresses and format. E.g., the
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application can wrap a system framebuffer thus ELM can directly render onto
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the screen.
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@return
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The buffer handle.
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*/
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ElmBuffer ElmWrapBuffer(int width, int height, int stride,
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void *logical, uint32_t physical,
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ELM_BUFFER_FORMAT format)
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{
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#if !DDRLESS
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el_Obj_Buffer *buffer_obj;
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vg_lite_buffer_t *buffer;
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ElmHandle handle = ELM_NULL_HANDLE;
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do {
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/* open framebuffer. */
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buffer_obj = (el_Obj_Buffer *)elm_alloc(1, sizeof(el_Obj_Buffer));
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if (buffer_obj != NULL) {
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buffer_obj->object.type = ELM_OBJECT_TYPE_BUF;
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buffer = &buffer_obj->buffer;
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buffer->width = width;
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buffer->height = height;
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buffer->stride = stride;
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buffer->memory = logical;
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buffer->handle = NULL;
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buffer->address = physical;
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buffer->format = _buffer_format_to_vglite(format);
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buffer->tiled = VG_LITE_LINEAR;
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JUMP_IF_NON_ZERO_VALUE(add_object((el_Object *)buffer_obj), error_exit);
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handle = buffer_obj->object.handle;
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}
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} while(0);
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return handle;
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error_exit:
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free(buffer_obj);
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return ELM_NULL_HANDLE;
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#else
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return ELM_NULL_HANDLE;
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#endif
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}
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/*!
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@abstract Get buffer address.
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@discussion
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The function is to get the address of ElmBuffer.
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@return
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The buffer address.
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*/
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uint32_t ElmGetBufferAddress(ElmBuffer buffer)
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{
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#if !DDRLESS
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el_Obj_Buffer *buff_obj;
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buff_obj = (el_Obj_Buffer *)get_object(buffer);
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if (buff_obj == NULL)
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{
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return 0;
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}
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else
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{
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return buff_obj->buffer.address;
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}
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#else
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return 0;
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#endif
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}
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/*!
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@abstract Destroy a render buffer.
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@discussion
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This function is to release all internal resource inside Elementary libary belonging to this buffer.
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Applicatoin need make sure the buffer is not being used by elmentary library any more when calling this function.
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@param buffer
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The render buffer handle
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@return
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If destroying is completed successfully.
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*/
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BOOL ElmDestroyBuffer(ElmBuffer buffer)
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{
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#if !DDRLESS
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/* Find the object. */
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el_Obj_Buffer *buff = (el_Obj_Buffer *)get_object(buffer);
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/* If found, delete the vg_lite_buffer object. Otherwise, return FALSE. */
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if (buff != NULL) {
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if (buff->buffer.handle != NULL) {
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/* Free the buffer memory. */
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vg_lite_free(&buff->buffer);
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}
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remove_object((el_Object*)buff);
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elm_free(buff);
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return TRUE;
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}
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else {
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return FALSE;
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}
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#else
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return TRUE;
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#endif
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}
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BOOL ElmSaveBuffer(ElmBuffer buffer, const char *name)
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{
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#if !DDRLESS
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el_Obj_Buffer *buff = (el_Obj_Buffer *)get_object(buffer);
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/* If found, delete the vg_lite_buffer object. Otherwise, return FALSE. */
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if (buff != NULL) {
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#if !RTOS
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/*
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"vg_lite_save_png" function does not exist (anymore). Probably a left
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over from an older driver.
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*/
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if (buff->buffer.memory != NULL) {
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vg_lite_save_png(name, &buff->buffer);
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}
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#endif
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return TRUE;
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}
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else {
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return FALSE;
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}
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#else
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return TRUE;
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#endif
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}
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/*!
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@abstract Convert vglite format to elm format.
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*/
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ELM_BUFFER_FORMAT _buffer_format_to_Elm(vg_lite_buffer_format_t format)
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{
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switch (format)
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{
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case VG_LITE_RGB565:
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return ELM_BUFFER_FORMAT_RGB565;
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break;
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case VG_LITE_BGR565:
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return ELM_BUFFER_FORMAT_BGR565;
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break;
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default:
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return ELM_BUFFER_FORMAT_RGBA8888;
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break;
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}
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}
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/*!
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@abstract Get handle of the framebuffer.
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*/
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ElmBuffer ElmGetBuffer(vg_lite_buffer_t *buffer)
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{
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elm_tls_t* elm_tls;
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elm_tls = (elm_tls_t *) elm_os_get_tls();
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if (elm_tls == NULL)
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return ELM_NULL_HANDLE;
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for (int i = 0; i < APP_BUFFER_COUNT; i++) {
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if (elm_tls->gContext.elmFB[i].buffer == NULL) {
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elm_tls->gContext.elmFB[i].buffer = buffer;
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elm_tls->gContext.elmFB[i].handle = ElmWrapBuffer(buffer->width, buffer->height, buffer->stride, buffer->memory,
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buffer->address, _buffer_format_to_Elm(buffer->format));
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vg_lite_clear(buffer, NULL, 0x0);
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return elm_tls->gContext.elmFB[i].handle;
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}
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if (elm_tls->gContext.elmFB[i].buffer == buffer)
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return elm_tls->gContext.elmFB[i].handle;
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}
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return 0;
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}
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