rsProgram.cpp revision c7cec1e3577cc77a5a73d5bd5a82733b1b9936a1 
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#include "rsContext.h"
18#include "rsProgram.h"
19
20using namespace android;
21using namespace android::renderscript;
22
23Program::Program(Context *rsc, const char * shaderText, uint32_t shaderLength,
24                 const uint32_t * params, uint32_t paramLength)
25    : ProgramBase(rsc) {
26
27    initMemberVars();
28    for (uint32_t ct=0; ct < paramLength; ct+=2) {
29        if (params[ct] == RS_PROGRAM_PARAM_INPUT) {
30            mHal.state.inputElementsCount++;
31        }
32        if (params[ct] == RS_PROGRAM_PARAM_CONSTANT) {
33            mHal.state.constantsCount++;
34        }
35        if (params[ct] == RS_PROGRAM_PARAM_TEXTURE_TYPE) {
36            mHal.state.texturesCount++;
37        }
38    }
39
40    mHal.state.textures = new ObjectBaseRef<Allocation>[mHal.state.texturesCount];
41    mHal.state.samplers = new ObjectBaseRef<Sampler>[mHal.state.texturesCount];
42    mHal.state.textureTargets = new RsTextureTarget[mHal.state.texturesCount];
43    mHal.state.inputElements = new ObjectBaseRef<Element>[mHal.state.inputElementsCount];
44    mHal.state.constantTypes = new ObjectBaseRef<Type>[mHal.state.constantsCount];
45    mHal.state.constants = new ObjectBaseRef<Allocation>[mHal.state.constantsCount];
46
47    uint32_t input = 0;
48    uint32_t constant = 0;
49    uint32_t texture = 0;
50    for (uint32_t ct=0; ct < paramLength; ct+=2) {
51        if (params[ct] == RS_PROGRAM_PARAM_INPUT) {
52            mHal.state.inputElements[input++].set(reinterpret_cast<Element *>(params[ct+1]));
53        }
54        if (params[ct] == RS_PROGRAM_PARAM_CONSTANT) {
55            mHal.state.constantTypes[constant++].set(reinterpret_cast<Type *>(params[ct+1]));
56        }
57        if (params[ct] == RS_PROGRAM_PARAM_TEXTURE_TYPE) {
58            mHal.state.textureTargets[texture++] = (RsTextureTarget)params[ct+1];
59        }
60    }
61    mIsInternal = false;
62    uint32_t internalTokenLen = strlen(RS_SHADER_INTERNAL);
63    if (shaderLength > internalTokenLen &&
64       strncmp(RS_SHADER_INTERNAL, shaderText, internalTokenLen) == 0) {
65        mIsInternal = true;
66        shaderText += internalTokenLen;
67        shaderLength -= internalTokenLen;
68    }
69    mUserShader.setTo(shaderText, shaderLength);
70}
71
72Program::~Program() {
73    freeChildren();
74
75    delete[] mHal.state.textures;
76    delete[] mHal.state.samplers;
77    delete[] mHal.state.textureTargets;
78    delete[] mHal.state.inputElements;
79    delete[] mHal.state.constantTypes;
80    delete[] mHal.state.constants;
81    mHal.state.inputElementsCount = 0;
82    mHal.state.constantsCount = 0;
83    mHal.state.texturesCount = 0;
84}
85
86bool Program::freeChildren() {
87    for (uint32_t ct=0; ct < mHal.state.constantsCount; ct++) {
88        bindAllocation(NULL, NULL, ct);
89    }
90
91    for (uint32_t ct=0; ct < mHal.state.texturesCount; ct++) {
92        bindTexture(NULL, ct, NULL);
93        bindSampler(NULL, ct, NULL);
94    }
95    return false;
96}
97
98void Program::initMemberVars() {
99    mDirty = true;
100
101    mHal.drv = NULL;
102    mHal.state.textures = NULL;
103    mHal.state.samplers = NULL;
104    mHal.state.textureTargets = NULL;
105    mHal.state.inputElements = NULL;
106    mHal.state.constantTypes = NULL;
107    mHal.state.constants = NULL;
108
109    mHal.state.inputElementsCount = 0;
110    mHal.state.constantsCount = 0;
111    mHal.state.texturesCount = 0;
112
113    mIsInternal = false;
114}
115
116void Program::bindAllocation(Context *rsc, Allocation *alloc, uint32_t slot) {
117    if (alloc != NULL) {
118        if (slot >= mHal.state.constantsCount) {
119            LOGE("Attempt to bind alloc at slot %u, on shader id %u, but const count is %u",
120                 slot, (uint32_t)this, mHal.state.constantsCount);
121            rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind allocation");
122            return;
123        }
124        if (alloc->getType() != mHal.state.constantTypes[slot].get()) {
125            LOGE("Attempt to bind alloc at slot %u, on shader id %u, but types mismatch",
126                 slot, (uint32_t)this);
127            rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind allocation");
128            return;
129        }
130    }
131    if (mHal.state.constants[slot].get() == alloc) {
132        return;
133    }
134    if (mHal.state.constants[slot].get()) {
135        mHal.state.constants[slot].get()->removeProgramToDirty(this);
136    }
137    mHal.state.constants[slot].set(alloc);
138    if (alloc) {
139        alloc->addProgramToDirty(this);
140    }
141    mDirty = true;
142}
143
144void Program::bindTexture(Context *rsc, uint32_t slot, Allocation *a) {
145    if (slot >= mHal.state.texturesCount) {
146        LOGE("Attempt to bind texture to slot %u but tex count is %u", slot, mHal.state.texturesCount);
147        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind texture");
148        return;
149    }
150
151    if (a && a->getType()->getDimFaces() && mHal.state.textureTargets[slot] != RS_TEXTURE_CUBE) {
152        LOGE("Attempt to bind cubemap to slot %u but 2d texture needed", slot);
153        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind cubemap to 2d texture slot");
154        return;
155    }
156
157    mHal.state.textures[slot].set(a);
158    mDirty = true;
159}
160
161void Program::bindSampler(Context *rsc, uint32_t slot, Sampler *s) {
162    if (slot >= mHal.state.texturesCount) {
163        LOGE("Attempt to bind sampler to slot %u but tex count is %u", slot, mHal.state.texturesCount);
164        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind sampler");
165        return;
166    }
167
168    mHal.state.samplers[slot].set(s);
169    mDirty = true;
170}
171
172namespace android {
173namespace renderscript {
174
175void rsi_ProgramBindConstants(Context *rsc, RsProgram vp, uint32_t slot, RsAllocation constants) {
176    Program *p = static_cast<Program *>(vp);
177    p->bindAllocation(rsc, static_cast<Allocation *>(constants), slot);
178}
179
180void rsi_ProgramBindTexture(Context *rsc, RsProgram vpf, uint32_t slot, RsAllocation a) {
181    Program *p = static_cast<Program *>(vpf);
182    p->bindTexture(rsc, slot, static_cast<Allocation *>(a));
183}
184
185void rsi_ProgramBindSampler(Context *rsc, RsProgram vpf, uint32_t slot, RsSampler s) {
186    Program *p = static_cast<Program *>(vpf);
187    p->bindSampler(rsc, slot, static_cast<Sampler *>(s));
188}
189
190}
191}
192
193