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/cvs/deliantra/Deliantra-Client/rendercache.c
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Comparing deliantra/Deliantra-Client/rendercache.c (file contents):
Revision 1.7 by root, Mon Aug 13 15:31:21 2007 UTC vs.
Revision 1.15 by root, Mon Nov 19 01:23:01 2018 UTC

1typedef struct { 1#include <vector>
2
3#include "salloc.h"
4
5struct rc_key_t
6{
2 GLenum mode; 7 GLenum mode;
3 GLenum format; // 0, GL_T2F_V3F, GL_V2F 8 GLenum format; // 0, GL_T2F_V3F, GL_V2F
4 GLuint texname; 9 GLuint texname;
5 unsigned char r, g, b, a; 10 unsigned char r, g, b, a;
6} rc_key_t;
7 11
8typedef struct { 12 bool operator == (const rc_key_t &o) const
9 HV *hv; 13 {
10} rc_t; 14 return mode == o.mode
15 && format == o.format
16 && texname == o.texname
17 && r == o.r
18 && g == o.g
19 && b == o.b
20 && a == o.a;
21 }
22};
11 23
12typedef SV rc_array_t; 24namespace std {
13 25 template <>
14static rc_t * 26 struct hash<rc_key_t>
15rc_alloc () 27 {
16{ 28 size_t operator () (const rc_key_t &v) const
17 rc_t *rc = g_slice_new0 (rc_t); 29 {
18 rc->hv = newHV (); 30 return v.mode + (v.format << 4) + v.texname + (v.r << 8) + (v.g << 16) + (v.b << 24) + v.a;
19 31 }
20 return rc; 32 };
21} 33}
22 34
23static void 35struct rc_t
24rc_free (rc_t *rc)
25{ 36{
26 SvREFCNT_dec (rc->hv); 37 struct glyph_data
27 g_slice_free (rc_t, rc); 38 {
28} 39 uint8_t u, v, w, h;
40 uint16_t x, y;
41 };
29 42
30static void 43 struct array_t
31rc_clear (rc_t *rc) 44 : std::vector<uint8_t, slice_allocator<uint8_t>>
32{ 45 {
33 hv_clear (rc->hv); 46 using std::vector<uint8_t, slice_allocator<uint8_t>>::vector;
34}
35 47
36static rc_array_t * 48 template<typename T>
37rc_array (rc_t *rc, rc_key_t *k) 49 T &append ()
38{
39 SV *sv = *hv_fetch (rc->hv, (char *)k, sizeof (*k), 1);
40
41 if (SvTYPE (sv) != SVt_PV)
42 { 50 {
43 sv_upgrade (sv, SVt_PV); 51 auto ofs = size ();
44 SvPOK_only (sv); 52 resize (ofs + sizeof (T));
53 return *(T *)(data () + ofs);
45 } 54 }
46 55
47 return sv; 56 void v2f (float x, float y)
48} 57 {
58 auto &vec = append<float[2]> ();
59 vec[0] = x / 2;
60 vec[1] = y / 2;
61 }
49 62
50static void 63 void t2f_v3f (float u, float v, float x, float y, float z)
51rc_v2f (rc_array_t *arr, float x, float y) 64 {
52{ 65 auto &vec = append<float[5]> ();
53 STRLEN len = SvCUR (arr) + sizeof (float) * 2; 66 vec[0] = u;
54 SvGROW (arr, len); 67 vec[1] = v;
68 vec[2] = x;
69 vec[3] = y;
70 vec[4] = z;
71 }
55 72
56 ((float *)SvEND (arr))[0] = x; 73 void glyph (int u, int v, int w, int h, int x, int y)
57 ((float *)SvEND (arr))[1] = y; 74 {
75 if (w && h)
76 {
77 auto &c = append<glyph_data> ();
58 78
59 SvCUR_set (arr, len); 79 c.u = u;
60} 80 c.v = v;
61 81 c.w = w;
62static void 82 c.h = h;
63rc_t2f_v3f (rc_array_t *arr, float u, float v, float x, float y, float z) 83 c.x = x + w;
64{ 84 c.y = y + h;
65 STRLEN len = SvCUR (arr) + sizeof (float) * 5;
66 SvGROW (arr, len);
67
68 ((float *)SvEND (arr))[0] = u;
69 ((float *)SvEND (arr))[1] = v;
70
71 ((float *)SvEND (arr))[2] = x;
72 ((float *)SvEND (arr))[3] = y;
73 ((float *)SvEND (arr))[4] = z;
74
75 SvCUR_set (arr, len);
76}
77
78static void
79rc_glyph (rc_array_t *arr, int u, int v, int w, int h, int x, int y)
80{
81 U8 *c;
82 STRLEN len = SvCUR (arr);
83 SvGROW (arr, len + 2 * 2 + 1 * 4);
84 c = (U8 *)SvEND (arr);
85
86 x += w;
87 y += h;
88
89 *c++ = u;
90 *c++ = v;
91 *c++ = w;
92 *c++ = h;
93
94 // use ber-encoding for up to 14 bits (16k)
95 *c = 0x80 | (x >> 7); c += (x >> 7) ? 1 : 0; *c++ = x & 0x7f;
96 *c = 0x80 | (y >> 7); c += (y >> 7) ? 1 : 0; *c++ = y & 0x7f;
97
98 SvCUR_set (arr, c - (U8 *)SvPVX (arr));
99}
100
101static void
102rc_draw (rc_t *rc)
103{
104 HE *he;
105
106 hv_iterinit (rc->hv);
107 while ((he = hv_iternext (rc->hv)))
108 {
109 rc_key_t *key = (rc_key_t *)HeKEY (he);
110 rc_array_t *arr = HeVAL (he);
111 STRLEN len;
112 char *arr_pv = SvPV (arr, len);
113 GLsizei stride;
114
115 if (key->texname)
116 {
117 glBindTexture (GL_TEXTURE_2D, key->texname);
118 glEnable (GL_TEXTURE_2D);
119 }
120 else
121 glDisable (GL_TEXTURE_2D);
122
123 glColor4ub (key->r, key->g, key->b, key->a);
124
125 if (key->format)
126 {
127 stride = key->format == GL_T2F_V3F ? sizeof (float) * 5
128 : key->format == GL_V2F ? sizeof (float) * 2
129 : 65536;
130
131 glInterleavedArrays (key->format, 0, (void *)arr_pv);
132 //glLockArraysEXT (0, len / stride);
133 glDrawArrays (key->mode, 0, len / stride);
134 //glUnlockArraysEXT ();
135 }
136 else
137 {
138 // optimised character quad storage. slower but nice on memory.
139 // reduces storage requirements from 80 bytes/char to 6-8
140 U8 *c = (U8 *)arr_pv;
141 U8 *e = c + len;
142
143 glBegin (key->mode); // practically must be quads
144
145 while (c < e)
146 {
147 int u, v, x, y, w, h;
148
149 u = *c++;
150 v = *c++;
151 w = *c++;
152 h = *c++;
153
154 x = *c++; if (x > 0x7f) x = ((x & 0x7f) << 7) | *c++;
155 y = *c++; if (y > 0x7f) y = ((y & 0x7f) << 7) | *c++;
156
157 x -= w;
158 y -= h;
159
160 glTexCoord2f ( u * (1.f / TC_WIDTH), v * (1.f / TC_HEIGHT)); glVertex2i (x , y );
161 glTexCoord2f ((u + w) * (1.f / TC_WIDTH), v * (1.f / TC_HEIGHT)); glVertex2i (x + w, y );
162 glTexCoord2f ((u + w) * (1.f / TC_WIDTH), (v + h) * (1.f / TC_HEIGHT)); glVertex2i (x + w, y + h);
163 glTexCoord2f ( u * (1.f / TC_WIDTH), (v + h) * (1.f / TC_HEIGHT)); glVertex2i (x , y + h);
164 }
165
166 glEnd ();
167 } 85 }
168 } 86 }
87 };
169 88
170 glDisable (GL_TEXTURE_2D); 89 int drawcount = 0;
171} 90 ska::flat_hash_map<rc_key_t, array_t> h;
172 91
92 void clear ()
93 {
94 drawcount = 0;
95 h.clear ();
96 }
173 97
98 array_t &array (const rc_key_t &k)
99 {
100 return h[k];
101 }
174 102
103 void draw ()
104 {
105 for (auto &&it = h.begin (); it != h.end (); ++it)
106 {
107 rc_key_t &key = it->first;
108 array_t &arr = it->second;
109 GLsizei stride;
175 110
111 if (key.texname)
112 {
113 glBindTexture (GL_TEXTURE_2D, key.texname);
114 glEnable (GL_TEXTURE_2D);
115 }
116 else
117 glDisable (GL_TEXTURE_2D);
118
119 glColor4ub (key.r, key.g, key.b, key.a);
120
121 if (key.format)
122 {
123 stride = key.format == GL_T2F_V3F ? sizeof (float) * 5
124 : key.format == GL_V2F ? sizeof (float) * 2
125 : 65536;
126
127 glInterleavedArrays (key.format, 0, (void *)arr.data ());
128 //glLockArraysEXT (0, len / stride);
129 glDrawArrays (key.mode, 0, arr.size () / stride);
130 //glUnlockArraysEXT ();
131 }
132 else
133 {
134 // optimised character quad storage. slower but nice on memory.
135 // reduces storage requirements from 80 bytes/char to 8
136 auto *c = (glyph_data *) arr.data ();
137 auto *e = (glyph_data *)(arr.data () + arr.size ());
138
139 glBegin (key.mode); // practically must be quads
140
141 while (c < e)
142 {
143 glTexCoord2f ( c->u * (1.f / TC_WIDTH), c->v * (1.f / TC_HEIGHT)); glVertex2i (c->x - c->w, c->y - c->h);
144 glTexCoord2f ((c->u + c->w) * (1.f / TC_WIDTH), c->v * (1.f / TC_HEIGHT)); glVertex2i (c->x , c->y - c->h);
145 glTexCoord2f ((c->u + c->w) * (1.f / TC_WIDTH), (c->v + c->h) * (1.f / TC_HEIGHT)); glVertex2i (c->x , c->y );
146 glTexCoord2f ( c->u * (1.f / TC_WIDTH), (c->v + c->h) * (1.f / TC_HEIGHT)); glVertex2i (c->x - c->w, c->y );
147
148 ++c;
149 }
150
151 glEnd ();
152 }
153 }
154
155 glDisable (GL_TEXTURE_2D);
156
157 if (ecb_expect_false (++drawcount == 16))
158 for (auto &&it = h.begin (); it != h.end (); ++it)
159 it->second.shrink_to_fit ();
160 }
161};
162

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