1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
/*
* This file is subject to the terms of the GFX License. If a copy of
* the license was not distributed with this file, you can obtain one at:
*
* http://ugfx.org/license.html
*/
/**
* @file src/gwin/gwin_gl3d.c
* @brief GWIN sub-system button code
*/
#include "gfx.h"
#if GFX_USE_GWIN && GWIN_NEED_GL3D
#if GDISP_PIXELFORMAT != GDISP_PIXELFORMAT_RGB565
#error "GWIN: GL3D only support GDISP_PIXELFORMAT_RGB565 color format (TinyGL limitation)"
#endif
#include "gwin_class.h"
#include "3rdparty/tinygl-0.4-ugfx/src/zgl.h"
// Forward definitions
static void gl3dDestroy(GWindowObject *gh);
static void gl3dRedraw(GWindowObject *gh);
static int gl3dResizeGLViewport(GLContext *c, int *xsize_ptr, int *ysize_ptr);
static const gwinVMT gl3dVMT = {
"GL3D", // The classname
sizeof(GGL3DObject), // The object size
gl3dDestroy, // The destroy routine
gl3dRedraw, // The redraw routine
0, // The after-clear routine
};
static bool_t haveGLwindow = FALSE;
GHandle gwinGGL3DCreate(GDisplay *g, GGL3DObject *gl, const GWindowInit *pInit) {
ZBuffer * zb;
GLContext * glcxt;
// Only one GL3D window allowed at a time (TinyGL limitation)
if (haveGLwindow)
return 0;
if (!(gl = (GGL3DObject *)_gwindowCreate(g, &gl->g, pInit, &gl3dVMT, 0)))
return 0;
// Must be a multiple of 4 bytes
gl->g.width &= ~3;
gl->g.height &= ~3;
zb = ZB_open(gl->g.width, gl->g.height, ZB_MODE_5R6G5B, 0, NULL, NULL, NULL);
if (!zb) {
if ((gl->g.flags & GWIN_FLG_DYNAMIC))
gfxFree(gl);
return 0;
}
/* initialisation of the TinyGL interpreter */
glInit(zb);
gl->glcxt = glcxt = gl_get_context();
glcxt->opaque = gl;
glcxt->gl_resize_viewport = gl3dResizeGLViewport;
/* set the viewport : we force a call to the viewport resize routine */
glcxt->viewport.xsize=-1;
glcxt->viewport.ysize=-1;
glViewport(0, 0, gl->g.width, gl->g.height);
haveGLwindow = TRUE;
gwinSetVisible((GHandle)gl, pInit->show);
return (GHandle)gl;
}
static void gl3dDestroy(GWindowObject *gh) {
(void) gh;
glClose();
haveGLwindow = FALSE;
}
static void gl3dRedraw(GWindowObject *gh) {
ZBuffer * zb;
zb = ((GGL3DObject *)gh)->glcxt->zb;
gdispGBlitArea(gh->display, gh->x, gh->y, zb->xsize, zb->ysize, 0, 0, zb->linesize/sizeof(color_t), (const pixel_t *)zb->pbuf);
}
static int gl3dResizeGLViewport(GLContext *c, int *xsize_ptr, int *ysize_ptr) {
int cx, cy;
cx = *xsize_ptr;
cy = *ysize_ptr;
// We ensure that cx and cy are multiples of 4 for the zbuffer. TODO: find a better solution
cx &= ~3;
cy &= ~3;
if (cx <= 0 || cy <= 0)
return -1;
*xsize_ptr = cx;
*ysize_ptr = cy;
// Resize the GWIN???
// Resize the Z buffer
ZB_resize(c->zb, NULL, cx, cy);
return 0;
}
/**
* TinyGL support routines
*/
#include <string.h>
#define NO_CLIBRARY
void tgl_warning(const char *format, ...) { (void)format; }
void tgl_trace(const char *format, ...) { (void)format; }
void tgl_fixme(const char *format, ...) { (void)format; }
void gl_fatal_error(char *format, ...) { gfxHalt(format); }
void gl_assert(int test) { if (!test) gfxHalt("TinyGL Assert"); }
void gl_free(void *p) { gfxFree(p); }
void *gl_malloc(int size) { return gfxAlloc(size); }
void *gl_zalloc(int size) {
void *p;
p = gfxAlloc(size);
if (p)
memset(p, 0, size);
return p;
}
/**
* Pre-load TinyGL headers
*/
/**
* TinyGL wrapper code
*/
#include "3rdparty/tinygl-0.4-ugfx/src/api.c"
#include "3rdparty/tinygl-0.4-ugfx/src/list.c"
#include "3rdparty/tinygl-0.4-ugfx/src/vertex.c"
#include "3rdparty/tinygl-0.4-ugfx/src/init.c"
#include "3rdparty/tinygl-0.4-ugfx/src/matrix.c"
#include "3rdparty/tinygl-0.4-ugfx/src/texture.c"
#include "3rdparty/tinygl-0.4-ugfx/src/misc.c"
#include "3rdparty/tinygl-0.4-ugfx/src/clear.c"
#include "3rdparty/tinygl-0.4-ugfx/src/light.c"
#include "3rdparty/tinygl-0.4-ugfx/src/clip.c"
#include "3rdparty/tinygl-0.4-ugfx/src/select.c"
#include "3rdparty/tinygl-0.4-ugfx/src/get.c"
#include "3rdparty/tinygl-0.4-ugfx/src/zbuffer.c"
#include "3rdparty/tinygl-0.4-ugfx/src/zline.c"
#include "3rdparty/tinygl-0.4-ugfx/src/zdither.c"
#include "3rdparty/tinygl-0.4-ugfx/src/ztriangle.c"
#include "3rdparty/tinygl-0.4-ugfx/src/zmath.c"
#include "3rdparty/tinygl-0.4-ugfx/src/image_util.c"
#include "3rdparty/tinygl-0.4-ugfx/src/arrays.c"
#include "3rdparty/tinygl-0.4-ugfx/src/specbuf.c"
#endif /* GFX_USE_GWIN && GWIN_NEED_GL3D */
|
