227 lines
6.6 KiB
C
227 lines
6.6 KiB
C
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/*
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ucg_scale.c
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Universal uC Color Graphics Library
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Copyright (c) 2014, olikraus@gmail.com
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or other
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materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "ucg.h"
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void ucg_UndoScale(ucg_t *ucg)
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{
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if ( ucg->scale_chain_device_cb != NULL )
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{
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ucg->device_cb = ucg->scale_chain_device_cb;
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ucg->scale_chain_device_cb = NULL;
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}
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ucg_GetDimension(ucg);
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ucg_SetMaxClipRange(ucg);
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}
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const ucg_fntpgm_uint8_t ucg_scale_2x2[16] UCG_FONT_SECTION("ucg_scale_2x2") =
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{ 0x00, 0x03, 0x0c, 0x0f, 0x30, 0x33, 0x3c, 0x3f, 0xc0, 0xc3, 0xcc, 0xcf, 0xf0, 0xf3, 0xfc, 0xff };
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static void ucg_scale_2x2_send_next_half_byte(ucg_t *ucg, ucg_xy_t *xy, ucg_int_t msg, ucg_int_t len, ucg_int_t dir, uint8_t b)
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{
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b &= 15;
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len *=2;
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ucg->arg.pixel.pos = *xy;
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switch(dir)
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{
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case 0: break;
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case 1: break;
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case 2: ucg->arg.pixel.pos.x++; break;
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default: case 3: ucg->arg.pixel.pos.y++; break;
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}
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ucg->arg.bitmap = ucg_scale_2x2+b;
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ucg->arg.len = len;
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ucg->arg.dir = dir;
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ucg->scale_chain_device_cb(ucg, msg, &(ucg->arg));
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ucg->arg.pixel.pos = *xy;
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switch(dir)
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{
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case 0: ucg->arg.pixel.pos.y++; break;
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case 1: ucg->arg.pixel.pos.x++; break;
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case 2: ucg->arg.pixel.pos.y++; ucg->arg.pixel.pos.x++; break;
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default: case 3: ucg->arg.pixel.pos.x++; ucg->arg.pixel.pos.y++; break;
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}
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ucg->arg.bitmap = ucg_scale_2x2+b;
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ucg->arg.len = len;
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ucg->arg.dir = dir;
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ucg->scale_chain_device_cb(ucg, msg, &(ucg->arg));
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switch(dir)
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{
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case 0: xy->x+=len; break;
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case 1: xy->y+=len; break;
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case 2: xy->x-=len; break;
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default: case 3: xy->y-=len; break;
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}
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}
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ucg_int_t ucg_dev_scale2x2(ucg_t *ucg, ucg_int_t msg, void *data)
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{
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ucg_xy_t xy;
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ucg_int_t len;
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ucg_int_t dir;
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switch(msg)
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{
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case UCG_MSG_GET_DIMENSION:
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ucg->scale_chain_device_cb(ucg, msg, data);
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((ucg_wh_t *)data)->h /= 2;
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((ucg_wh_t *)data)->w /= 2;
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//printf("rw=%d rh=%d\n", ucg->rotate_dimension.w, ucg->rotate_dimension.h);
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//printf("aw=%d ah=%d\n", ((ucg_wh_t volatile * volatile )data)->w, ((ucg_wh_t volatile * volatile )data)->h);
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//printf("dw=%d dh=%d\n", ucg->dimension.w, ucg->dimension.h);
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return 1;
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case UCG_MSG_SET_CLIP_BOX:
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((ucg_box_t * )data)->ul.y *= 2;
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((ucg_box_t * )data)->ul.x *= 2;
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((ucg_box_t * )data)->size.h *= 2;
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((ucg_box_t * )data)->size.w *= 2;
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//printf("post clipbox x=%d y=%d\n", ((ucg_box_t * )data)->ul.x, ((ucg_box_t * )data)->ul.y);
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break;
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case UCG_MSG_DRAW_PIXEL:
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xy = ucg->arg.pixel.pos;
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ucg->arg.pixel.pos.x *= 2;
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ucg->arg.pixel.pos.y *= 2;
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ucg->scale_chain_device_cb(ucg, msg, data);
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ucg->arg.pixel.pos.x++;
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ucg->scale_chain_device_cb(ucg, msg, data);
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ucg->arg.pixel.pos.y++;
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ucg->scale_chain_device_cb(ucg, msg, data);
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ucg->arg.pixel.pos.x--;
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ucg->scale_chain_device_cb(ucg, msg, data);
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ucg->arg.pixel.pos = xy;
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return 1;
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case UCG_MSG_DRAW_L90SE:
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case UCG_MSG_DRAW_L90FX:
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xy = ucg->arg.pixel.pos;
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len = ucg->arg.len;
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dir = ucg->arg.dir;
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ucg->arg.pixel.pos.x *= 2;
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ucg->arg.pixel.pos.y *= 2;
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switch(dir)
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{
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case 0: break;
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case 1: break;
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case 2: ucg->arg.pixel.pos.x++; break;
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default: case 3: ucg->arg.pixel.pos.y++; break;
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}
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ucg->arg.len *= 2;
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ucg->scale_chain_device_cb(ucg, msg, data);
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ucg->arg.pixel.pos = xy;
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ucg->arg.pixel.pos.x *= 2;
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ucg->arg.pixel.pos.y *= 2;
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ucg->arg.len = len*2;
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ucg->arg.dir = dir;
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switch(dir)
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{
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case 0: ucg->arg.pixel.pos.y++; break;
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case 1: ucg->arg.pixel.pos.x++; break;
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case 2: ucg->arg.pixel.pos.y++; ucg->arg.pixel.pos.x++; break;
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default: case 3: ucg->arg.pixel.pos.x++; ucg->arg.pixel.pos.y++; break;
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}
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ucg->scale_chain_device_cb(ucg, msg, data);
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ucg->arg.pixel.pos = xy;
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ucg->arg.len = len;
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ucg->arg.dir = dir;
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return 1;
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#ifdef UCG_MSG_DRAW_L90TC
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case UCG_MSG_DRAW_L90TC:
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#endif /* UCG_MSG_DRAW_L90TC */
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#ifdef UCG_MSG_DRAW_L90BF
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case UCG_MSG_DRAW_L90BF:
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#endif /* UCG_MSG_DRAW_L90BF */
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#if defined(UCG_MSG_DRAW_L90TC) || defined(UCG_MSG_DRAW_L90BF)
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xy = ucg->arg.pixel.pos;
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len = ucg->arg.len;
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dir = ucg->arg.dir;
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ucg->arg.pixel.pos.x *= 2;
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ucg->arg.pixel.pos.y *= 2;
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{
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const unsigned char *b = ucg->arg.bitmap;
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ucg_xy_t my_xy = ucg->arg.pixel.pos;
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ucg_int_t i;
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for( i = 8; i < len; i+=8 )
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{
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ucg_scale_2x2_send_next_half_byte(ucg, &my_xy, msg, 4, dir, ucg_pgm_read(b)>>4);
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ucg_scale_2x2_send_next_half_byte(ucg, &my_xy, msg, 4, dir, ucg_pgm_read(b));
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b+=1;
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}
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i = len+8-i;
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if ( i > 4 )
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{
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ucg_scale_2x2_send_next_half_byte(ucg, &my_xy, msg, 4, dir, ucg_pgm_read(b)>>4);
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ucg_scale_2x2_send_next_half_byte(ucg, &my_xy, msg, i-4, dir, ucg_pgm_read(b));
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}
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else
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{
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ucg_scale_2x2_send_next_half_byte(ucg, &my_xy, msg, i, dir, ucg_pgm_read(b)>>4);
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}
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}
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ucg->arg.pixel.pos = xy;
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ucg->arg.len = len;
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ucg->arg.dir = dir;
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return 1;
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#endif
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}
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return ucg->scale_chain_device_cb(ucg, msg, data);
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}
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/* Side-Effects: Update dimension and reset clip range to max */
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void ucg_SetScale2x2(ucg_t *ucg)
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{
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ucg_UndoScale(ucg);
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ucg->scale_chain_device_cb = ucg->device_cb;
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ucg->device_cb = ucg_dev_scale2x2;
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ucg_GetDimension(ucg);
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ucg_SetMaxClipRange(ucg);
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}
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