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/*
* Copyright (C) 2009 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "rsContext.h"
#include "rsProgramFragment.h"
using namespace android;
using namespace android::renderscript;
ProgramFragment::ProgramFragment(Context *rsc, const char * shaderText,
uint32_t shaderLength, const uint32_t * params,
uint32_t paramLength)
: Program(rsc, shaderText, shaderLength, params, paramLength) {
mConstantColor[0] = 1.f;
mConstantColor[1] = 1.f;
mConstantColor[2] = 1.f;
mConstantColor[3] = 1.f;
mRSC->mHal.funcs.fragment.init(mRSC, this, mUserShader.string(), mUserShader.length());
}
ProgramFragment::~ProgramFragment() {
mRSC->mHal.funcs.fragment.destroy(mRSC, this);
}
void ProgramFragment::setConstantColor(Context *rsc, float r, float g, float b, float a) {
if (isUserProgram()) {
LOGE("Attempting to set fixed function emulation color on user program");
rsc->setError(RS_ERROR_BAD_SHADER, "Cannot set fixed function emulation color on user program");
return;
}
if (mHal.state.constants[0].get() == NULL) {
LOGE("Unable to set fixed function emulation color because allocation is missing");
rsc->setError(RS_ERROR_BAD_SHADER, "Unable to set fixed function emulation color because allocation is missing");
return;
}
mConstantColor[0] = r;
mConstantColor[1] = g;
mConstantColor[2] = b;
mConstantColor[3] = a;
memcpy(mHal.state.constants[0]->getPtr(), mConstantColor, 4*sizeof(float));
mDirty = true;
}
void ProgramFragment::setup(Context *rsc, ProgramFragmentState *state) {
if ((state->mLast.get() == this) && !mDirty) {
return;
}
state->mLast.set(this);
for (uint32_t ct=0; ct < mHal.state.texturesCount; ct++) {
if (!mHal.state.textures[ct].get()) {
LOGE("No texture bound for shader id %u, texture unit %u", (uint)this, ct);
rsc->setError(RS_ERROR_BAD_SHADER, "No texture bound");
continue;
}
}
rsc->mHal.funcs.fragment.setActive(rsc, this);
}
void ProgramFragment::serialize(OStream *stream) const {
}
ProgramFragment *ProgramFragment::createFromStream(Context *rsc, IStream *stream) {
return NULL;
}
ProgramFragmentState::ProgramFragmentState() {
mPF = NULL;
}
ProgramFragmentState::~ProgramFragmentState() {
ObjectBase::checkDelete(mPF);
mPF = NULL;
}
void ProgramFragmentState::init(Context *rsc) {
String8 shaderString(RS_SHADER_INTERNAL);
shaderString.append("varying lowp vec4 varColor;\n");
shaderString.append("varying vec2 varTex0;\n");
shaderString.append("void main() {\n");
shaderString.append(" lowp vec4 col = UNI_Color;\n");
shaderString.append(" gl_FragColor = col;\n");
shaderString.append("}\n");
const Element *colorElem = Element::create(rsc, RS_TYPE_FLOAT_32, RS_KIND_USER, false, 4);
rsc->mStateElement.elementBuilderBegin();
rsc->mStateElement.elementBuilderAdd(colorElem, "Color", 1);
const Element *constInput = rsc->mStateElement.elementBuilderCreate(rsc);
Type *inputType = Type::getType(rsc, constInput, 1, 0, 0, false, false);
uint32_t tmp[2];
tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
tmp[1] = (uint32_t)inputType;
Allocation *constAlloc = Allocation::createAllocation(rsc, inputType,
RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_CONSTANTS);
ProgramFragment *pf = new ProgramFragment(rsc, shaderString.string(),
shaderString.length(), tmp, 2);
pf->bindAllocation(rsc, constAlloc, 0);
pf->setConstantColor(rsc, 1.0f, 1.0f, 1.0f, 1.0f);
mDefault.set(pf);
}
void ProgramFragmentState::deinit(Context *rsc) {
mDefault.clear();
mLast.clear();
}
namespace android {
namespace renderscript {
RsProgramFragment rsi_ProgramFragmentCreate(Context *rsc, const char * shaderText,
size_t shaderLength, const uint32_t * params,
size_t paramLength) {
ProgramFragment *pf = new ProgramFragment(rsc, shaderText, shaderLength, params, paramLength);
pf->incUserRef();
//LOGE("rsi_ProgramFragmentCreate %p", pf);
return pf;
}
}
}
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