+/* Project 16 Source Code~\r
+ * Copyright (C) 2012-2017 sparky4 & pngwen & andrius4669 & joncampbell123 & yakui-lover\r
+ *\r
+ * This file is part of Project 16.\r
+ *\r
+ * Project 16 is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 3 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * Project 16 is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License\r
+ * along with this program. If not, see <http://www.gnu.org/licenses/>, or\r
+ * write to the Free Software Foundation, Inc., 51 Franklin Street,\r
+ * Fifth Floor, Boston, MA 02110-1301 USA.\r
+ *\r
+ */\r
+/*\r
+ * Render data code~\r
+ */\r
+\r
+#include "16/modex16/16render.h"\r
+\r
+//TODO! ADD CLIPPING!!\r
+//memory management needs to be added\r
+//void\r
+//modexDrawBmpRegion (page_t *page, int x, int y, int rx, int ry, int rw, int rh, bitmap_t *bmp)\r
+void modexDrawPBufRegion (page_t *page, int x, int y, int rx, int ry, int rw, int rh, planar_buf_t *p, boolean sprite)\r
+{\r
+ word plane;\r
+ int i;\r
+ const int px=x+page[0].dx;\r
+ const int py=y+page[0].dy;\r
+ const int prw = rw/4;\r
+ int prh;\r
+\r
+ //fine tuning\r
+ rx+=1;\r
+ ry+=1;\r
+\r
+ //^^;\r
+ #define PEEE rx-prw\r
+ #define PE (p->pwidth)\r
+ if(rh<p->height) prh = (PE*(ry-4));\r
+ else if(rh==p->height) prh = (PE*(ry));\r
+ y=py;\r
+ x=px;\r
+ //printf("%d,%d p(%d,%d) r(%d,%d) rwh(%d,%d)\n", x, y, px, py, rx, ry, rw, rh);\r
+ for(plane=0; plane < 4; plane++) {\r
+ i=PEEE+prh;\r
+ modexSelectPlane(PLANE(plane-1));\r
+ for(; y < py+rh; y++) {\r
+ _fmemcpy(page->data + (((page->width/4) * (y)) + ((x) / 4)), &(p->plane[plane][i]), prw);\r
+ i+=PE;\r
+ }\r
+ x=px;\r
+ y=py;\r
+ }\r
+}\r
+\r
+\r
+/*temp*/\r
+void\r
+modexDrawPBuf(page_t *page, int x, int y, planar_buf_t *p, boolean sprite)\r
+{\r
+ modexDrawPBufRegion (page, x, x, 0, 0, p->width, p->height, p, sprite);\r
+ /*\r
+ sword plane;\r
+ int i;\r
+// byte near *buff;\r
+ const int px=x+page[0].dx;\r
+ const int py=y+page[0].dy;\r
+ x=px;\r
+ y=py;\r
+// buff = _nmalloc(p->pwidth+1);\r
+ // TODO Make this fast. It's SLOOOOOOW\r
+// for(plane=0; plane < 4; plane++) {\r
+// i=0;\r
+// modexSelectPlane(PLANE(plane+x));\r
+// for(px = plane; px < p->width; px+=4) {\r
+// offset=px;\r
+// for(py=0; py<p->height/2; py++) {\r
+// //SELECT_ALL_PLANES();\r
+// if(!sprite || p->plane[offset])\r
+// page->data = &(p->plane[offset][i++]);\r
+// offset+=p->width;\r
+// offset++;\r
+// }\r
+// }\r
+// }\r
+ for(plane=0; plane < 4; plane++) {\r
+ i=0;\r
+ modexSelectPlane(PLANE(plane-1));\r
+ for(; y < py+p->height; y++) {\r
+ //for(px=0; px < p->width; px++) {\r
+ //printf("%02X ", (int) p->plane[plane][i++]);\r
+// _fmemcpy(buff, &(p->plane[plane][i+=p->pwidth]), p->pwidth);\r
+// printf("buff %u==%s\n", y, *buff);\r
+// _fmemcpy(page->data + (((page->width/4) * (y+page[0].dy)) + ((x+page[0].dx) / 4)), buff, p->pwidth);\r
+ _fmemcpy(page->data + (((page->width/4) * y) + (x / 4)), &(p->plane[plane][i+=p->pwidth]), p->pwidth);\r
+ //}\r
+ }\r
+//getch();\r
+ x=px;\r
+ y=py;\r
+ }\r
+// _nfree(buff);*/\r
+}\r
+\r
+void\r
+oldDrawBmp(byte far* page, int x, int y, bitmap_t *bmp, byte sprite)\r
+{\r
+ byte plane;\r
+ word px, py;\r
+ word offset;\r
+\r
+ /* TODO Make this fast. It's SLOOOOOOW */\r
+ for(plane=0; plane < 4; plane++) {\r
+ modexSelectPlane(PLANE(plane+x));\r
+ for(px = plane; px < bmp->width; px+=4) {\r
+ offset=px;\r
+ for(py=0; py<bmp->height; py++) {\r
+ if(!sprite || bmp->data[offset])\r
+ page[PAGE_OFFSET(x+px, y+py)] = bmp->data[offset];\r
+ offset+=bmp->width;\r
+ }\r
+ }\r
+ }\r
+}\r
+\r
+//* normal versions *//\r
+void\r
+modexDrawBmp(page_t *page, int x, int y, bitmap_t *bmp) {\r
+ /* draw the region (the entire freakin bitmap) */\r
+ modexDrawBmpRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp);\r
+}\r
+\r
+void\r
+modexDrawBmpRegion(page_t *page, int x, int y,\r
+ int rx, int ry, int rw, int rh, bitmap_t *bmp) {\r
+ word poffset = (word)page->data + y*(page->width/4) + x/4;\r
+ byte *data = bmp->data;//+bmp->offset;\r
+ word bmpOffset = (word) data + ry * bmp->width + rx;\r
+ word width = rw;\r
+ word height = rh;\r
+ byte plane = 1 << ((byte) x & 0x03);\r
+ word scanCount = width/4 + (width%4 ? 1 :0);\r
+ word nextPageRow = page->width/4 - scanCount;\r
+ word nextBmpRow = (word) bmp->width - width;\r
+ word rowCounter=0;\r
+ byte planeCounter = 4;\r
+\r
+ __asm {\r
+ MOV AX, SCREEN_SEG ; go to the VGA memory\r
+ MOV ES, AX\r
+\r
+ MOV DX, SC_INDEX ; point at the map mask register\r
+ MOV AL, SC_MAPMASK ;\r
+ OUT DX, AL ;\r
+\r
+ PLANE_LOOP:\r
+ MOV DX, SC_DATA ; select the current plane\r
+ MOV AL, plane ;\r
+ OUT DX, AL ;\r
+\r
+ ;-- begin plane painting\r
+ MOV AX, height ; start the row counter\r
+ MOV rowCounter, AX ;\r
+ MOV DI, poffset ; go to the first pixel\r
+ MOV SI, bmpOffset ; go to the bmp pixel\r
+ ROW_LOOP:\r
+ MOV CX, width ; count the columns\r
+ SCAN_LOOP:\r
+ MOVSB ; copy the pixel\r
+ SUB CX, 3 ; we skip the next 3\r
+ ADD SI, 3 ; skip the bmp pixels\r
+ LOOP SCAN_LOOP ; finish the scan\r
+\r
+ MOV AX, nextPageRow\r
+ ADD DI, AX ; go to the next row on screen\r
+ MOV AX, nextBmpRow\r
+ ADD SI, AX ; go to the next row on bmp\r
+\r
+ DEC rowCounter\r
+ JNZ ROW_LOOP ; do all the rows\r
+ ;-- end plane painting\r
+ MOV AL, plane ; advance to the next plane\r
+ SHL AL, 1 ;\r
+ AND AL, 0x0f ; mask the plane properly\r
+ MOV plane, AL ; store the plane\r
+\r
+ INC bmpOffset ; start bmp at the right spot\r
+\r
+ DEC planeCounter\r
+ JNZ PLANE_LOOP ; do all 4 planes\r
+ }\r
+}\r
+\r
+void\r
+modexDrawSprite(page_t *page, int x, int y, bitmap_t *bmp) {\r
+ /* draw the whole sprite */\r
+ modexDrawSpriteRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp);\r
+}\r
+\r
+void\r
+modexDrawSpriteRegion(page_t *page, int x, int y,\r
+ int rx, int ry, int rw, int rh, bitmap_t *bmp) {\r
+ word poffset = (word)page->data + y*(page->width/4) + x/4;\r
+ byte *data = bmp->data;//+bmp->offset;\r
+ word bmpOffset = (word) data + ry * bmp->width + rx;\r
+ word width = rw;\r
+ word height = rh;\r
+ byte plane = 1 << ((byte) x & 0x03);\r
+ word scanCount = width/4 + (width%4 ? 1 :0);\r
+ word nextPageRow = page->width/4 - scanCount;\r
+ word nextBmpRow = (word) bmp->width - width;\r
+ word rowCounter=0;\r
+ byte planeCounter = 4;\r
+\r
+ __asm {\r
+ MOV AX, SCREEN_SEG ; go to the VGA memory\r
+ MOV ES, AX\r
+\r
+ MOV DX, SC_INDEX ; point at the map mask register\r
+ MOV AL, SC_MAPMASK ;\r
+ OUT DX, AL ;\r
+\r
+ PLANE_LOOP:\r
+ MOV DX, SC_DATA ; select the current plane\r
+ MOV AL, plane ;\r
+ OUT DX, AL ;\r
+\r
+ ;-- begin plane painting\r
+ MOV AX, height ; start the row counter\r
+ MOV rowCounter, AX ;\r
+ MOV DI, poffset ; go to the first pixel\r
+ MOV SI, bmpOffset ; go to the bmp pixel\r
+ ROW_LOOP:\r
+ MOV CX, width ; count the columns\r
+ SCAN_LOOP:\r
+ LODSB\r
+ DEC SI\r
+ CMP AL, 0\r
+ JNE DRAW_PIXEL ; draw non-zero pixels\r
+\r
+ INC DI ; skip the transparent pixel\r
+ ADD SI, 1\r
+ JMP NEXT_PIXEL\r
+ DRAW_PIXEL:\r
+ MOVSB ; copy the pixel\r
+ NEXT_PIXEL:\r
+ SUB CX, 3 ; we skip the next 3\r
+ ADD SI, 3 ; skip the bmp pixels\r
+ LOOP SCAN_LOOP ; finish the scan\r
+\r
+ MOV AX, nextPageRow\r
+ ADD DI, AX ; go to the next row on screen\r
+ MOV AX, nextBmpRow\r
+ ADD SI, AX ; go to the next row on bmp\r
+\r
+ DEC rowCounter\r
+ JNZ ROW_LOOP ; do all the rows\r
+ ;-- end plane painting\r
+\r
+ MOV AL, plane ; advance to the next plane\r
+ SHL AL, 1 ;\r
+ AND AL, 0x0f ; mask the plane properly\r
+ MOV plane, AL ; store the plane\r
+\r
+ INC bmpOffset ; start bmp at the right spot\r
+\r
+ DEC planeCounter\r
+ JNZ PLANE_LOOP ; do all 4 planes\r
+ }\r
+}\r
+\r
+//* planar buffer versions *//\r
+void\r
+modexDrawBmpPBuf(page_t *page, int x, int y, planar_buf_t *bmp) {\r
+ /* draw the region (the entire freakin bitmap) */\r
+ modexDrawBmpPBufRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp);\r
+}\r
+\r
+void\r
+modexDrawBmpPBufRegion(page_t *page, int x, int y,\r
+ int rx, int ry, int rw, int rh, planar_buf_t *bmp) {\r
+ word poffset = (word) page->data + y*(page->width/4) + x/4;\r
+ byte *data = (byte *)bmp->plane[0];\r
+ word bmpOffset = (word) data + ry * bmp->width + rx;\r
+ word width = rw;\r
+ word height = rh;\r
+ byte plane = 1 << ((byte) x & 0x03);\r
+ word scanCount = width/4 + (width%4 ? 1 :0);\r
+ word nextPageRow = page->width/4 - scanCount;\r
+ word nextBmpRow = (word) bmp->width - width;\r
+ word rowCounter=0;\r
+ byte planeCounter = 4;\r
+\r
+ __asm {\r
+ MOV AX, SCREEN_SEG ; go to the VGA memory\r
+ MOV ES, AX\r
+\r
+ MOV DX, SC_INDEX ; point at the map mask register\r
+ MOV AL, SC_MAPMASK ;\r
+ OUT DX, AL ;\r
+\r
+ PLANE_LOOP:\r
+ MOV DX, SC_DATA ; select the current plane\r
+ MOV AL, plane ;\r
+ OUT DX, AL ;\r
+\r
+ ;-- begin plane painting\r
+ MOV AX, height ; start the row counter\r
+ MOV rowCounter, AX ;\r
+ MOV DI, poffset ; go to the first pixel\r
+ MOV SI, bmpOffset ; go to the bmp pixel\r
+ ROW_LOOP:\r
+ MOV CX, width ; count the columns\r
+ SCAN_LOOP:\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+\r
+ MOVSB ; copy the pixel\r
+\r
+ SUB CX, 3 ; we skip the next 3\r
+ ADD SI, 3 ; skip the bmp pixels\r
+ LOOP SCAN_LOOP ; finish the scan\r
+\r
+ MOV AX, nextPageRow\r
+ ADD DI, AX ; go to the next row on screen\r
+ MOV AX, nextBmpRow\r
+ ADD SI, AX ; go to the next row on bmp\r
+\r
+ DEC rowCounter\r
+ JNZ ROW_LOOP ; do all the rows\r
+ ;-- end plane painting\r
+\r
+ MOV AL, plane ; advance to the next plane\r
+ SHL AL, 1 ;\r
+ AND AL, 0x0f ; mask the plane properly\r
+ MOV plane, AL ; store the plane\r
+\r
+ INC bmpOffset ; start bmp at the right spot\r
+\r
+ DEC planeCounter\r
+ JNZ PLANE_LOOP ; do all 4 planes\r
+ }\r
+}\r
+\r
+void\r
+modexDrawSpritePBuf(page_t *page, int x, int y, planar_buf_t *bmp) {\r
+ /* draw the whole sprite */\r
+ modexDrawSpritePBufRegion(page, x, y, 0, 0, bmp->width, bmp->height, bmp);\r
+}\r
+\r
+void\r
+modexDrawSpritePBufRegion(page_t *page, int x, int y,\r
+ int rx, int ry, int rw, int rh, planar_buf_t *bmp) {\r
+ word poffset = (word)page->data + y*(page->width/4) + x/4;\r
+ byte *data = (byte *)bmp->plane[0];\r
+ word bmpOffset = (word) data + ry * bmp->width + rx;\r
+ word width = rw;\r
+ word height = rh;\r
+ byte plane = 1 << ((byte) x & 0x03);\r
+ word scanCount = width/4 + (width%4 ? 1 :0);\r
+ word nextPageRow = page->width/4 - scanCount;\r
+ word nextBmpRow = (word) bmp->width - width;\r
+ word rowCounter=0;\r
+ byte planeCounter = 4;\r
+\r
+ __asm {\r
+ MOV AX, SCREEN_SEG ; go to the VGA memory\r
+ MOV ES, AX\r
+\r
+ MOV DX, SC_INDEX ; point at the map mask register\r
+ MOV AL, SC_MAPMASK ;\r
+ OUT DX, AL ;\r
+\r
+ PLANE_LOOP:\r
+ MOV DX, SC_DATA ; select the current plane\r
+ MOV AL, plane ;\r
+ OUT DX, AL ;\r
+\r
+ ;-- begin plane painting\r
+ MOV AX, height ; start the row counter\r
+ MOV rowCounter, AX ;\r
+ MOV DI, poffset ; go to the first pixel\r
+ MOV SI, bmpOffset ; go to the bmp pixel\r
+ ROW_LOOP:\r
+ MOV CX, width ; count the columns\r
+ SCAN_LOOP:\r
+ LODSB\r
+ DEC SI\r
+ CMP AL, 0\r
+ JNE DRAW_PIXEL ; draw non-zero pixels\r
+\r
+ INC DI ; skip the transparent pixel\r
+ ADD SI, 1\r
+ JMP NEXT_PIXEL\r
+ DRAW_PIXEL:\r
+ MOVSB ; copy the pixel\r
+ NEXT_PIXEL:\r
+ SUB CX, 3 ; we skip the next 3\r
+ ADD SI, 3 ; skip the bmp pixels\r
+ LOOP SCAN_LOOP ; finish the scan\r
+\r
+ MOV AX, nextPageRow\r
+ ADD DI, AX ; go to the next row on screen\r
+ MOV AX, nextBmpRow\r
+ ADD SI, AX ; go to the next row on bmp\r
+\r
+ DEC rowCounter\r
+ JNZ ROW_LOOP ; do all the rows\r
+ ;-- end plane painting\r
+\r
+ MOV AL, plane ; advance to the next plane\r
+ SHL AL, 1 ;\r
+ AND AL, 0x0f ; mask the plane properly\r
+ MOV plane, AL ; store the plane\r
+\r
+ INC bmpOffset ; start bmp at the right spot\r
+\r
+ DEC planeCounter\r
+ JNZ PLANE_LOOP ; do all 4 planes\r
+ }\r
+}\r