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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../rwbase.h"
#include "../rwerror.h"
#include "../rwplg.h"
#include "../rwrender.h"
#include "../rwengine.h"
#include "../rwpipeline.h"
#include "../rwobjects.h"
#ifdef RW_OPENGL
#include "rwgl3.h"
#include "rwgl3shader.h"
#include "rwgl3impl.h"
namespace rw {
namespace gl3 {
#define MAX_LIGHTS
void
drawInst_simple(InstanceDataHeader *header, InstanceData *inst)
{
flushCache();
glDrawElements(header->primType, inst->numIndex,
GL_UNSIGNED_SHORT, (void*)(uintptr)inst->offset);
}
// Emulate PS2 GS alpha test FB_ONLY case: failed alpha writes to frame- but not to depth buffer
void
drawInst_GSemu(InstanceDataHeader *header, InstanceData *inst)
{
uint32 hasAlpha;
int alphafunc, alpharef, gsalpharef;
int zwrite;
hasAlpha = getAlphaBlend();
if(hasAlpha){
zwrite = rw::GetRenderState(rw::ZWRITEENABLE);
alphafunc = rw::GetRenderState(rw::ALPHATESTFUNC);
if(zwrite){
alpharef = rw::GetRenderState(rw::ALPHATESTREF);
gsalpharef = rw::GetRenderState(rw::GSALPHATESTREF);
SetRenderState(rw::ALPHATESTFUNC, rw::ALPHAGREATEREQUAL);
SetRenderState(rw::ALPHATESTREF, gsalpharef);
drawInst_simple(header, inst);
SetRenderState(rw::ALPHATESTFUNC, rw::ALPHALESS);
SetRenderState(rw::ZWRITEENABLE, 0);
drawInst_simple(header, inst);
SetRenderState(rw::ZWRITEENABLE, 1);
SetRenderState(rw::ALPHATESTFUNC, alphafunc);
SetRenderState(rw::ALPHATESTREF, alpharef);
}else{
SetRenderState(rw::ALPHATESTFUNC, rw::ALPHAALWAYS);
drawInst_simple(header, inst);
SetRenderState(rw::ALPHATESTFUNC, alphafunc);
}
}else
drawInst_simple(header, inst);
}
void
drawInst(InstanceDataHeader *header, InstanceData *inst)
{
if(rw::GetRenderState(rw::GSALPHATEST))
drawInst_GSemu(header, inst);
else
drawInst_simple(header, inst);
}
void
setAttribPointers(AttribDesc *attribDescs, int32 numAttribs)
{
AttribDesc *a;
for(a = attribDescs; a != &attribDescs[numAttribs]; a++){
glEnableVertexAttribArray(a->index);
glVertexAttribPointer(a->index, a->size, a->type, a->normalized,
a->stride, (void*)(uint64)a->offset);
}
}
void
disableAttribPointers(AttribDesc *attribDescs, int32 numAttribs)
{
AttribDesc *a;
for(a = attribDescs; a != &attribDescs[numAttribs]; a++)
glDisableVertexAttribArray(a->index);
}
void
setupVertexInput(InstanceDataHeader *header)
{
#ifdef RW_GL_USE_VAOS
glBindVertexArray(header->vao);
#else
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, header->ibo);
glBindBuffer(GL_ARRAY_BUFFER, header->vbo);
setAttribPointers(header->attribDesc, header->numAttribs);
#endif
}
void
teardownVertexInput(InstanceDataHeader *header)
{
#ifndef RW_GL_USE_VAOS
disableAttribPointers(header->attribDesc, header->numAttribs);
#endif
}
int32
lightingCB(Atomic *atomic)
{
WorldLights lightData;
Light *directionals[8];
Light *locals[8];
lightData.directionals = directionals;
lightData.numDirectionals = 8;
lightData.locals = locals;
lightData.numLocals = 8;
if(atomic->geometry->flags & rw::Geometry::LIGHT)
((World*)engine->currentWorld)->enumerateLights(atomic, &lightData);
else
memset(&lightData, 0, sizeof(lightData));
return setLights(&lightData);
}
int32
lightingCB(void)
{
WorldLights lightData;
Light *directionals[8];
Light *locals[8];
lightData.directionals = directionals;
lightData.numDirectionals = 8;
lightData.locals = locals;
lightData.numLocals = 8;
((World*)engine->currentWorld)->enumerateLights(&lightData);
return setLights(&lightData);
}
void
defaultRenderCB(Atomic *atomic, InstanceDataHeader *header)
{
Material *m;
uint32 flags = atomic->geometry->flags;
setWorldMatrix(atomic->getFrame()->getLTM());
int32 vsBits = lightingCB(atomic);
setupVertexInput(header);
InstanceData *inst = header->inst;
int32 n = header->numMeshes;
while(n--){
m = inst->material;
setMaterial(flags, m->color, m->surfaceProps);
setTexture(0, m->texture);
rw::SetRenderState(VERTEXALPHA, inst->vertexAlpha || m->color.alpha != 0xFF);
if((vsBits & VSLIGHT_MASK) == 0){
if(getAlphaTest())
defaultShader->use();
else
defaultShader_noAT->use();
}else{
if(getAlphaTest())
defaultShader_fullLight->use();
else
defaultShader_fullLight_noAT->use();
}
drawInst(header, inst);
inst++;
}
teardownVertexInput(header);
}
}
}
#endif
|
