1 /* Matrix Stack test
2
3 Copyright 2010 DeSmuME team
4
5 This file is part of DeSmuME
6
7 DeSmuME is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
11
12 DeSmuME is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with DeSmuME; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21 #include <nds.h>
22 #include <stdio.h>
23
24 GL_MATRIX_MODE_ENUM modes[4] = {GL_PROJECTION, GL_POSITION, GL_MODELVIEW, GL_TEXTURE};
25 char *modesTXT[4] = {"PROJECTION", "POSITION", "MODELVIEW", "TEXTURE"};
26
27 PrintConsole *scr = consoleDemoInit();
28
29 s32 POPstep = 0;
30 u32 mode = 0;
31 u32 POPs = 0, PUSHes = 0;
32 //---------------------------------------------------------------------------------
main(void)33 int main(void) {
34 //---------------------------------------------------------------------------------
35 int keys;
36 videoSetModeSub(MODE_0_2D);
37 videoSetMode(MODE_0_3D);
38
39 vramSetBankA(VRAM_A_MAIN_BG);
40 vramSetBankC(VRAM_C_SUB_BG);
41
42 consoleInit(scr, 3, BgType_Text4bpp, BgSize_T_256x256, 31, 0, false, true);
43
44 glInit();
45 glMatrixMode(GL_PROJECTION);
46 glFlush(0);
47
48 POPstep=0;
49 mode = 0;
50 POPs = 0;
51 PUSHes = 0;
52
53 while(1) {
54 scanKeys();
55 keys = keysDown();
56 if(keys & KEY_A)
57 {
58 glPushMatrix();
59 PUSHes++;
60 }
61 if(keys & KEY_B)
62 {
63 glPopMatrix(POPstep);
64 POPs++;
65 }
66 if(keys & KEY_X)
67 {
68 mode++;
69 if (mode > 3) mode = 0;
70 glMatrixMode(modes[mode]);
71 }
72
73 if(keys & KEY_UP)
74 {
75 if (POPstep < 31) POPstep += 1;
76 }
77 if(keys & KEY_DOWN)
78 {
79 if (POPstep > -30) POPstep -= 1;
80 }
81
82 consoleClear();
83 iprintf("Matrix mode = %i:%s\n", mode, modesTXT[mode]);
84 iprintf("\n");
85 iprintf("GFX STATUS = 0x%08X\n", GFX_STATUS);
86 iprintf("\t - Pos&Vec level = %i\n", (GFX_STATUS>>8)&0x1F);
87 iprintf("\t - Proj. level = %i\n", (GFX_STATUS>>13)&0x01);
88 iprintf("\t - Error %s\n", (GFX_STATUS>>15)&0x01?"YES":"no");
89 iprintf("\n");
90 iprintf("POP step = %i\n", POPstep);
91 iprintf("POP count = %i\n", POPs);
92 iprintf("PUSH count = %i\n", PUSHes);
93
94 iprintf("\n");
95 iprintf("A\t - PUSH\n");
96 iprintf("B\t - POP\n");
97 iprintf("UP\t- POP increment step\n");
98 iprintf("DOWN - POP decrement step\n");
99 iprintf("X\t - Change mode\n");
100 swiWaitForVBlank();
101 }
102
103 return 0;
104 }
105