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, size_t shaderLength,
24                 const uint32_t * params, size_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    mTextures = new ObjectBaseRef<Allocation>[mHal.state.texturesCount];
41    mSamplers = new ObjectBaseRef<Sampler>[mHal.state.texturesCount];
42    mInputElements = new ObjectBaseRef<Element>[mHal.state.inputElementsCount];
43    mConstantTypes = new ObjectBaseRef<Type>[mHal.state.constantsCount];
44    mConstants = new ObjectBaseRef<Allocation>[mHal.state.constantsCount];
45
46    mHal.state.textures = new Allocation*[mHal.state.texturesCount];
47    mHal.state.samplers = new Sampler*[mHal.state.texturesCount];
48    mHal.state.textureTargets = new RsTextureTarget[mHal.state.texturesCount];
49    mHal.state.inputElements = new Element*[mHal.state.inputElementsCount];
50    mHal.state.constantTypes = new Type*[mHal.state.constantsCount];
51    mHal.state.constants = new Allocation*[mHal.state.constantsCount];
52
53    // Will initialize everything
54    freeChildren();
55
56    uint32_t input = 0;
57    uint32_t constant = 0;
58    uint32_t texture = 0;
59    for (uint32_t ct=0; ct < paramLength; ct+=2) {
60        if (params[ct] == RS_PROGRAM_PARAM_INPUT) {
61            mInputElements[input].set(reinterpret_cast<Element *>(params[ct+1]));
62            mHal.state.inputElements[input++] = reinterpret_cast<Element *>(params[ct+1]);
63        }
64        if (params[ct] == RS_PROGRAM_PARAM_CONSTANT) {
65            mConstantTypes[constant].set(reinterpret_cast<Type *>(params[ct+1]));
66            mHal.state.constantTypes[constant++] = reinterpret_cast<Type *>(params[ct+1]);
67        }
68        if (params[ct] == RS_PROGRAM_PARAM_TEXTURE_TYPE) {
69            mHal.state.textureTargets[texture++] = (RsTextureTarget)params[ct+1];
70        }
71    }
72    mIsInternal = false;
73    uint32_t internalTokenLen = strlen(RS_SHADER_INTERNAL);
74    if (shaderLength > internalTokenLen &&
75       strncmp(RS_SHADER_INTERNAL, shaderText, internalTokenLen) == 0) {
76        mIsInternal = true;
77        shaderText += internalTokenLen;
78        shaderLength -= internalTokenLen;
79    }
80    mUserShader.setTo(shaderText, shaderLength);
81}
82
83Program::~Program() {
84    freeChildren();
85
86    delete[] mTextures;
87    delete[] mSamplers;
88    delete[] mInputElements;
89    delete[] mConstantTypes;
90    delete[] mConstants;
91
92    delete[] mHal.state.textures;
93    delete[] mHal.state.samplers;
94    delete[] mHal.state.textureTargets;
95    delete[] mHal.state.inputElements;
96    delete[] mHal.state.constantTypes;
97    delete[] mHal.state.constants;
98    mHal.state.inputElementsCount = 0;
99    mHal.state.constantsCount = 0;
100    mHal.state.texturesCount = 0;
101}
102
103bool Program::freeChildren() {
104    for (uint32_t ct=0; ct < mHal.state.constantsCount; ct++) {
105        bindAllocation(NULL, NULL, ct);
106    }
107
108    for (uint32_t ct=0; ct < mHal.state.texturesCount; ct++) {
109        bindTexture(NULL, ct, NULL);
110        bindSampler(NULL, ct, NULL);
111    }
112    return false;
113}
114
115void Program::initMemberVars() {
116    mDirty = true;
117
118    mHal.drv = NULL;
119    mHal.state.textures = NULL;
120    mHal.state.samplers = NULL;
121    mHal.state.textureTargets = NULL;
122    mHal.state.inputElements = NULL;
123    mHal.state.constantTypes = NULL;
124    mHal.state.constants = NULL;
125
126    mHal.state.inputElementsCount = 0;
127    mHal.state.constantsCount = 0;
128    mHal.state.texturesCount = 0;
129
130    mTextures = NULL;
131    mSamplers = NULL;
132    mInputElements = NULL;
133    mConstantTypes = NULL;
134    mConstants = NULL;
135
136    mIsInternal = false;
137}
138
139void Program::bindAllocation(Context *rsc, Allocation *alloc, uint32_t slot) {
140    if (alloc != NULL) {
141        if (slot >= mHal.state.constantsCount) {
142            ALOGE("Attempt to bind alloc at slot %u, on shader id %u, but const count is %u",
143                 slot, (uint32_t)this, mHal.state.constantsCount);
144            rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind allocation");
145            return;
146        }
147        if (alloc->getType() != mConstantTypes[slot].get()) {
148            ALOGE("Attempt to bind alloc at slot %u, on shader id %u, but types mismatch",
149                 slot, (uint32_t)this);
150            rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind allocation");
151            return;
152        }
153    }
154    if (mConstants[slot].get() == alloc) {
155        return;
156    }
157    if (mConstants[slot].get()) {
158        mConstants[slot]->removeProgramToDirty(this);
159    }
160    mConstants[slot].set(alloc);
161    mHal.state.constants[slot] = alloc;
162    if (alloc) {
163        alloc->addProgramToDirty(this);
164    }
165    mDirty = true;
166}
167
168void Program::bindTexture(Context *rsc, uint32_t slot, Allocation *a) {
169    if (slot >= mHal.state.texturesCount) {
170        ALOGE("Attempt to bind texture to slot %u but tex count is %u", slot, mHal.state.texturesCount);
171        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind texture");
172        return;
173    }
174
175    if (a && a->getType()->getDimFaces() && mHal.state.textureTargets[slot] != RS_TEXTURE_CUBE) {
176        ALOGE("Attempt to bind cubemap to slot %u but 2d texture needed", slot);
177        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind cubemap to 2d texture slot");
178        return;
179    }
180
181    mTextures[slot].set(a);
182    mHal.state.textures[slot] = a;
183
184    mDirty = true;
185}
186
187void Program::bindSampler(Context *rsc, uint32_t slot, Sampler *s) {
188    if (slot >= mHal.state.texturesCount) {
189        ALOGE("Attempt to bind sampler to slot %u but tex count is %u", slot, mHal.state.texturesCount);
190        rsc->setError(RS_ERROR_BAD_SHADER, "Cannot bind sampler");
191        return;
192    }
193
194    mSamplers[slot].set(s);
195    mHal.state.samplers[slot] = s;
196    mDirty = true;
197}
198
199namespace android {
200namespace renderscript {
201
202void rsi_ProgramBindConstants(Context *rsc, RsProgram vp, uint32_t slot, RsAllocation constants) {
203    Program *p = static_cast<Program *>(vp);
204    p->bindAllocation(rsc, static_cast<Allocation *>(constants), slot);
205}
206
207void rsi_ProgramBindTexture(Context *rsc, RsProgram vpf, uint32_t slot, RsAllocation a) {
208    Program *p = static_cast<Program *>(vpf);
209    p->bindTexture(rsc, slot, static_cast<Allocation *>(a));
210}
211
212void rsi_ProgramBindSampler(Context *rsc, RsProgram vpf, uint32_t slot, RsSampler s) {
213    Program *p = static_cast<Program *>(vpf);
214    p->bindSampler(rsc, slot, static_cast<Sampler *>(s));
215}
216
217}
218}
219
220