1 /*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17
18 #include "rsdCore.h"
19 #include "rsdProgramStore.h"
20
21 #include "rsContext.h"
22 #include "rsProgramStore.h"
23
24 #include <GLES/gl.h>
25 #include <GLES/glext.h>
26
27 using android::renderscript::Context;
28 using android::renderscript::ProgramStore;
29
30 struct DrvProgramStore {
31 GLenum blendSrc;
32 GLenum blendDst;
33 bool blendEnable;
34
35 GLenum depthFunc;
36 bool depthTestEnable;
37 };
38
rsdProgramStoreInit(const Context * rsc,const ProgramStore * ps)39 bool rsdProgramStoreInit(const Context *rsc, const ProgramStore *ps) {
40 DrvProgramStore *drv = (DrvProgramStore *)calloc(1, sizeof(DrvProgramStore));
41 if (drv == nullptr) {
42 return false;
43 }
44
45 ps->mHal.drv = drv;
46 drv->depthTestEnable = true;
47
48 switch (ps->mHal.state.depthFunc) {
49 case RS_DEPTH_FUNC_ALWAYS:
50 drv->depthTestEnable = false;
51 drv->depthFunc = GL_ALWAYS;
52 break;
53 case RS_DEPTH_FUNC_LESS:
54 drv->depthFunc = GL_LESS;
55 break;
56 case RS_DEPTH_FUNC_LEQUAL:
57 drv->depthFunc = GL_LEQUAL;
58 break;
59 case RS_DEPTH_FUNC_GREATER:
60 drv->depthFunc = GL_GREATER;
61 break;
62 case RS_DEPTH_FUNC_GEQUAL:
63 drv->depthFunc = GL_GEQUAL;
64 break;
65 case RS_DEPTH_FUNC_EQUAL:
66 drv->depthFunc = GL_EQUAL;
67 break;
68 case RS_DEPTH_FUNC_NOTEQUAL:
69 drv->depthFunc = GL_NOTEQUAL;
70 break;
71 default:
72 ALOGE("Unknown depth function.");
73 goto error;
74 }
75
76
77
78 drv->blendEnable = true;
79 if ((ps->mHal.state.blendSrc == RS_BLEND_SRC_ONE) &&
80 (ps->mHal.state.blendDst == RS_BLEND_DST_ZERO)) {
81 drv->blendEnable = false;
82 }
83
84 switch (ps->mHal.state.blendSrc) {
85 case RS_BLEND_SRC_ZERO:
86 drv->blendSrc = GL_ZERO;
87 break;
88 case RS_BLEND_SRC_ONE:
89 drv->blendSrc = GL_ONE;
90 break;
91 case RS_BLEND_SRC_DST_COLOR:
92 drv->blendSrc = GL_DST_COLOR;
93 break;
94 case RS_BLEND_SRC_ONE_MINUS_DST_COLOR:
95 drv->blendSrc = GL_ONE_MINUS_DST_COLOR;
96 break;
97 case RS_BLEND_SRC_SRC_ALPHA:
98 drv->blendSrc = GL_SRC_ALPHA;
99 break;
100 case RS_BLEND_SRC_ONE_MINUS_SRC_ALPHA:
101 drv->blendSrc = GL_ONE_MINUS_SRC_ALPHA;
102 break;
103 case RS_BLEND_SRC_DST_ALPHA:
104 drv->blendSrc = GL_DST_ALPHA;
105 break;
106 case RS_BLEND_SRC_ONE_MINUS_DST_ALPHA:
107 drv->blendSrc = GL_ONE_MINUS_DST_ALPHA;
108 break;
109 case RS_BLEND_SRC_SRC_ALPHA_SATURATE:
110 drv->blendSrc = GL_SRC_ALPHA_SATURATE;
111 break;
112 default:
113 rsc->setError(RS_ERROR_FATAL_DRIVER, "Unknown blend src mode.");
114 goto error;
115 }
116
117 switch (ps->mHal.state.blendDst) {
118 case RS_BLEND_DST_ZERO:
119 drv->blendDst = GL_ZERO;
120 break;
121 case RS_BLEND_DST_ONE:
122 drv->blendDst = GL_ONE;
123 break;
124 case RS_BLEND_DST_SRC_COLOR:
125 drv->blendDst = GL_SRC_COLOR;
126 break;
127 case RS_BLEND_DST_ONE_MINUS_SRC_COLOR:
128 drv->blendDst = GL_ONE_MINUS_SRC_COLOR;
129 break;
130 case RS_BLEND_DST_SRC_ALPHA:
131 drv->blendDst = GL_SRC_ALPHA;
132 break;
133 case RS_BLEND_DST_ONE_MINUS_SRC_ALPHA:
134 drv->blendDst = GL_ONE_MINUS_SRC_ALPHA;
135 break;
136 case RS_BLEND_DST_DST_ALPHA:
137 drv->blendDst = GL_DST_ALPHA;
138 break;
139 case RS_BLEND_DST_ONE_MINUS_DST_ALPHA:
140 drv->blendDst = GL_ONE_MINUS_DST_ALPHA;
141 break;
142 default:
143 rsc->setError(RS_ERROR_FATAL_DRIVER, "Unknown blend dst mode.");
144 goto error;
145 }
146
147 return true;
148
149 error:
150 free(drv);
151 ps->mHal.drv = nullptr;
152 return false;
153 }
154
rsdProgramStoreSetActive(const Context * rsc,const ProgramStore * ps)155 void rsdProgramStoreSetActive(const Context *rsc, const ProgramStore *ps) {
156 DrvProgramStore *drv = (DrvProgramStore *)ps->mHal.drv;
157
158 RSD_CALL_GL(glColorMask, ps->mHal.state.colorRWriteEnable,
159 ps->mHal.state.colorGWriteEnable,
160 ps->mHal.state.colorBWriteEnable,
161 ps->mHal.state.colorAWriteEnable);
162
163 if (drv->blendEnable) {
164 RSD_CALL_GL(glEnable, GL_BLEND);
165 RSD_CALL_GL(glBlendFunc, drv->blendSrc, drv->blendDst);
166 } else {
167 RSD_CALL_GL(glDisable, GL_BLEND);
168 }
169
170 if (rsc->mUserSurfaceConfig.depthMin > 0) {
171 RSD_CALL_GL(glDepthMask, ps->mHal.state.depthWriteEnable);
172 if (drv->depthTestEnable || ps->mHal.state.depthWriteEnable) {
173 RSD_CALL_GL(glEnable, GL_DEPTH_TEST);
174 RSD_CALL_GL(glDepthFunc, drv->depthFunc);
175 } else {
176 RSD_CALL_GL(glDisable, GL_DEPTH_TEST);
177 }
178 } else {
179 RSD_CALL_GL(glDepthMask, false);
180 RSD_CALL_GL(glDisable, GL_DEPTH_TEST);
181 }
182
183 /*
184 if (rsc->mUserSurfaceConfig.stencilMin > 0) {
185 } else {
186 glStencilMask(0);
187 glDisable(GL_STENCIL_TEST);
188 }
189 */
190
191 if (ps->mHal.state.ditherEnable) {
192 RSD_CALL_GL(glEnable, GL_DITHER);
193 } else {
194 RSD_CALL_GL(glDisable, GL_DITHER);
195 }
196 }
197
rsdProgramStoreDestroy(const Context * rsc,const ProgramStore * ps)198 void rsdProgramStoreDestroy(const Context *rsc, const ProgramStore *ps) {
199 free(ps->mHal.drv);
200 ps->mHal.drv = nullptr;
201 }
202
203
204