354 lines
11 KiB
C
354 lines
11 KiB
C
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/****************************************************************************
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*
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* The MIT License (MIT)
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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 <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdio.h>
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#include "vg_lite.h"
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vg_lite_error_t vg_lite_upload_path(vg_lite_path_t * path)
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{
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uint32_t bytes;
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vg_lite_buffer_t Buf, *buffer;
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buffer = &Buf;
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/* Compute the number of bytes required for path + command buffer prefix/postfix. */
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bytes = (8 + path->path_length + 7 + 8) & ~7;
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/* Allocate GPU memory. */
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buffer->width = bytes;
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buffer->height = 1;
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buffer->stride = 0;
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buffer->format = VG_LITE_A8;
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if (vg_lite_allocate(buffer) != VG_LITE_SUCCESS) {
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return VG_LITE_OUT_OF_MEMORY;
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}
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/* Initialize command buffer prefix. */
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((uint32_t *) buffer->memory)[0] = 0x40000000 | ((path->path_length + 7) / 8);
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((uint32_t *) buffer->memory)[1] = 0;
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/* Copy the path data. */
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memcpy((uint32_t *) buffer->memory + 2, path->path, path->path_length);
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/* Initialize command buffer postfix. */
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((uint32_t *) buffer->memory)[bytes / 4 - 2] = 0x70000000;
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((uint32_t *) buffer->memory)[bytes / 4 - 1] = 0;
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/* Mark path as uploaded. */
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path->uploaded.handle = buffer->handle;
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path->uploaded.address = buffer->address;
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path->uploaded.memory = buffer->memory;
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path->uploaded.bytes = bytes;
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path->path_changed = 0;
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VLM_PATH_ENABLE_UPLOAD(*path); /* Implicitly enable path uploading. */
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/* Return pointer to vg_lite_buffer structure. */
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return VG_LITE_SUCCESS;
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}
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/* Path data operations. */
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#define CDALIGN(value, by) (((value) + (by) - 1) & ~((by) - 1))
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#define CDMIN(x, y) ((x) > (y) ? (y) : (x))
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#define CDMAX(x, y) ((x) > (y) ? (x) : (y))
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static int32_t get_data_count(uint8_t cmd)
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{
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static int32_t count[] = {
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0,
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0,
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2,
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2,
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2,
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2,
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4,
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4,
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6,
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6,
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5,
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5,
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5,
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5,
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5,
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5,
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5,
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5
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};
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if (cmd > VLC_OP_LCWARC_REL) {
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return -1;
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}
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else {
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return count[cmd];
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}
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}
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static void compute_pathbounds(float *xmin, float *ymin, float *xmax, float *ymax, float x, float y)
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{
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if (xmin != NULL)
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{
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*xmin = *xmin < x ? *xmin : x;
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}
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if (xmax != NULL)
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{
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*xmax = *xmax > x ? *xmax : x;
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}
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if (ymin != NULL)
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{
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*ymin = *ymin < y ? *ymin : y;
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}
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if (ymax != NULL)
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{
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*ymax = *ymax > y ? *ymax : y;
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}
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}
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static int32_t get_data_size(vg_lite_format_t format)
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{
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int32_t data_size = 0;
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switch (format) {
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case VG_LITE_S8:
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data_size = sizeof(int8_t);
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break;
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case VG_LITE_S16:
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data_size = sizeof(int16_t);
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break;
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case VG_LITE_S32:
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data_size = sizeof(int32_t);
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break;
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default:
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data_size = sizeof(vg_lite_float_t);
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break;
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}
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return data_size;
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}
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int32_t vg_lite_path_calc_length(uint8_t *cmd, uint32_t count, vg_lite_format_t format)
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{
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int32_t size = 0;
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int32_t dCount = 0;
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uint32_t i = 0;
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int32_t data_size = 0;
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data_size = get_data_size(format);
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for (i = 0; i < count; i++) {
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size++; /* OP CODE. */
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dCount = get_data_count(cmd[i]);
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if (dCount > 0) {
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size = CDALIGN(size, data_size);
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size += dCount * data_size;
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}
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}
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return size;
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}
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vg_lite_error_t vg_lite_path_append(vg_lite_path_t *path,
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uint8_t *cmd,
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void *data,
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uint32_t seg_count)
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{
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vg_lite_error_t error = VG_LITE_SUCCESS;
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uint32_t i;
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int32_t j;
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int32_t offset = 0;
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int32_t dataCount = 0;
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float *dataf = (float*) data;
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float *pathf = NULL;
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int32_t *data_s32 = (int32_t*) data;
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int32_t *path_s32 = NULL;
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int16_t *data_s16 = (int16_t*) data;
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int16_t *path_s16 = NULL;
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int8_t *data_s8 = (int8_t*) data;
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int8_t *path_s8 = NULL;
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uint8_t *pathc = NULL;
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int32_t data_size;
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uint8_t arc_path = 0;
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float px = 0.0f, py = 0.0f, cx = 0.0f, cy = 0.0f;
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int rel = 0;
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if(cmd == NULL || data == NULL || path == NULL || path->path == NULL)
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return VG_LITE_INVALID_ARGUMENT;
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for(i = 0; i < seg_count; i++) {
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if(cmd[i] > VLC_OP_LCWARC_REL)
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return VG_LITE_INVALID_ARGUMENT;
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}
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data_size = get_data_size(path->format);
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path->path_changed= 1;
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pathf = (float *)path->path;
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path_s32 = (int32_t *)path->path;
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path_s16 = (int16_t *)path->path;
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path_s8 = (int8_t *)path->path;
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pathc = (uint8_t *)path->path;
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/* Loop to fill path data. */
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for (i = 0; i < seg_count; i++) {
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*(pathc + offset) = cmd[i];
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offset++;
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dataCount = get_data_count(cmd[i]);
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if (dataCount > 0) {
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offset = CDALIGN(offset, data_size);
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if ((cmd[i] > VLC_OP_CLOSE) &&
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((cmd[i] & 0x01) == 1)){
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rel = 1;
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}
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else {
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rel = 0;
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}
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if(cmd[i] < VLC_OP_SCCWARC) {
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for (j = 0; j < dataCount / 2; j++) {
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switch (path->format) {
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case VG_LITE_S8:
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path_s8 = (int8_t *)(pathc + offset);
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path_s8[j * 2] = *data_s8++;
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path_s8[j * 2 + 1] = *data_s8++;
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if (rel) {
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cx = px + path_s8[j * 2];
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cy = py + path_s8[j * 2 + 1];
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}
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else {
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cx = path_s8[j * 2];
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cy = path_s8[j * 2 + 1];
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}
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break;
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case VG_LITE_S16:
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path_s16 = (int16_t *)(pathc + offset);
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path_s16[j * 2] = *data_s16++;
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path_s16[j * 2 + 1] = *data_s16++;
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if (rel) {
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cx = px + path_s16[j * 2];
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cy = py + path_s16[j * 2 + 1];
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}
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else {
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cx = path_s16[j * 2];
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cy = path_s16[j * 2 + 1];
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}
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break;
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case VG_LITE_S32:
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path_s32 = (int32_t *)(pathc + offset);
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path_s32[j * 2] = *data_s32++;
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path_s32[j * 2 + 1] = *data_s32++;
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if (rel) {
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cx = px + path_s32[j * 2];
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cy = py + path_s32[j * 2 + 1];
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}
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else {
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cx = path_s32[j * 2];
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cy = path_s32[j * 2 + 1];
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}
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break;
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case VG_LITE_FP32:
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pathf = (float *)(pathc + offset);
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pathf[j * 2] = *dataf++;
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pathf[j * 2 + 1] = *dataf++;
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if (rel) {
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cx = px + pathf[j * 2];
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cy = py + pathf[j * 2 + 1];
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}
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else {
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cx = pathf[j * 2];
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cy = pathf[j * 2 + 1];
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}
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break;
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default:
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return VG_LITE_INVALID_ARGUMENT;
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}
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/* Update path bounds. */
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path->bounding_box[0] = CDMIN(path->bounding_box[0], cx);
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path->bounding_box[2] = CDMAX(path->bounding_box[2], cx);
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path->bounding_box[1] = CDMIN(path->bounding_box[1], cy);
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path->bounding_box[3] = CDMAX(path->bounding_box[3], cy);
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}
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}
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else {
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arc_path = 1;
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pathf = (float *)(pathc + offset);
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pathf[0] = *dataf++;
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pathf[1] = *dataf++;
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pathf[2] = *dataf++;
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pathf[3] = *dataf++;
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pathf[4] = *dataf++;
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if (rel) {
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cx = px + pathf[3];
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cy = py + pathf[4];
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}
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else {
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cx = pathf[3];
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cy = pathf[4];
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}
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/* Update path bounds. */
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compute_pathbounds(&path->bounding_box[0], &path->bounding_box[1], &path->bounding_box[2], &path->bounding_box[3],cx + 2 * pathf[0],cy + 2 * pathf[1]);
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compute_pathbounds(&path->bounding_box[0], &path->bounding_box[1], &path->bounding_box[2], &path->bounding_box[3],px + 2 * pathf[1],py + 2 * pathf[1]);
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compute_pathbounds(&path->bounding_box[0], &path->bounding_box[1], &path->bounding_box[2], &path->bounding_box[3],cx - 2 * pathf[0],cy - 2 * pathf[1]);
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compute_pathbounds(&path->bounding_box[0], &path->bounding_box[1], &path->bounding_box[2], &path->bounding_box[3],px - 2 * pathf[1],py - 2 * pathf[1]);
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}
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px = cx;
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py = cy;
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offset += dataCount * data_size;
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}
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}
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path->path_length = offset;
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if(arc_path) {
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error = vg_lite_init_arc_path(path,
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VG_LITE_FP32,
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path->quality,
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path->path_length,
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path->path,
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path->bounding_box[0], path->bounding_box[1],
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path->bounding_box[2], path->bounding_box[3]);
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}
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return error;
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}
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