/*
* Copyright (C) 2011 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 "rsProgramVertex.h"
using namespace android;
using namespace android::renderscript;
ProgramVertex::ProgramVertex(Context *rsc, const char * shaderText,
uint32_t shaderLength, const uint32_t * params,
uint32_t paramLength)
: Program(rsc, shaderText, shaderLength, params, paramLength) {
mRSC->mHal.funcs.vertex.init(mRSC, this, mUserShader.string(), mUserShader.length());
}
ProgramVertex::~ProgramVertex() {
mRSC->mHal.funcs.vertex.destroy(mRSC, this);
}
void ProgramVertex::setup(Context *rsc, ProgramVertexState *state) {
if ((state->mLast.get() == this) && !mDirty) {
return;
}
if (!isUserProgram()) {
if (mHal.state.constants[0].get() == NULL) {
rsc->setError(RS_ERROR_FATAL_UNKNOWN,
"Unable to set fixed function emulation matrices because allocation is missing");
return;
}
float *f = static_cast<float *>(mHal.state.constants[0]->getPtr());
Matrix4x4 mvp;
mvp.load(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
Matrix4x4 t;
t.load(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET]);
mvp.multiply(&t);
for (uint32_t i = 0; i < 16; i ++) {
f[RS_PROGRAM_VERTEX_MVP_OFFSET + i] = mvp.m[i];
}
}
state->mLast.set(this);
rsc->mHal.funcs.vertex.setActive(rsc, this);
}
void ProgramVertex::setProjectionMatrix(Context *rsc, const rsc_Matrix *m) const {
if (isUserProgram()) {
rsc->setError(RS_ERROR_FATAL_UNKNOWN,
"Attempting to set fixed function emulation matrix projection on user program");
return;
}
if (mHal.state.constants[0].get() == NULL) {
rsc->setError(RS_ERROR_FATAL_UNKNOWN,
"Unable to set fixed function emulation matrix projection because allocation is missing");
return;
}
float *f = static_cast<float *>(mHal.state.constants[0]->getPtr());
memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m, sizeof(rsc_Matrix));
mDirty = true;
}
void ProgramVertex::setModelviewMatrix(Context *rsc, const rsc_Matrix *m) const {
if (isUserProgram()) {
rsc->setError(RS_ERROR_FATAL_UNKNOWN,
"Attempting to set fixed function emulation matrix modelview on user program");
return;
}
if (mHal.state.constants[0].get() == NULL) {
rsc->setError(RS_ERROR_FATAL_UNKNOWN,
"Unable to set fixed function emulation matrix modelview because allocation is missing");
return;
}
float *f = static_cast<float *>(mHal.state.constants[0]->getPtr());
memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m, sizeof(rsc_Matrix));
mDirty = true;
}
void ProgramVertex::setTextureMatrix(Context *rsc, const rsc_Matrix *m) const {
if (isUserProgram()) {
rsc->setError(RS_ERROR_FATAL_UNKNOWN,
"Attempting to set fixed function emulation matrix texture on user program");
return;
}
if (mHal.state.constants[0].get() == NULL) {
rsc->setError(RS_ERROR_FATAL_UNKNOWN,
"Unable to set fixed function emulation matrix texture because allocation is missing");
return;
}
float *f = static_cast<float *>(mHal.state.constants[0]->getPtr());
memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m, sizeof(rsc_Matrix));
mDirty = true;
}
void ProgramVertex::getProjectionMatrix(Context *rsc, rsc_Matrix *m) const {
if (isUserProgram()) {
rsc->setError(RS_ERROR_FATAL_UNKNOWN,
"Attempting to get fixed function emulation matrix projection on user program");
return;
}
if (mHal.state.constants[0].get() == NULL) {
rsc->setError(RS_ERROR_FATAL_UNKNOWN,
"Unable to get fixed function emulation matrix projection because allocation is missing");
return;
}
float *f = static_cast<float *>(mHal.state.constants[0]->getPtr());
memcpy(m, &f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], sizeof(rsc_Matrix));
}
void ProgramVertex::transformToScreen(Context *rsc, float *v4out, const float *v3in) const {
if (isUserProgram()) {
return;
}
float *f = static_cast<float *>(mHal.state.constants[0]->getPtr());
Matrix4x4 mvp;
mvp.loadMultiply((Matrix4x4 *)&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET],
(Matrix4x4 *)&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET]);
mvp.vectorMultiply(v4out, v3in);
}
void ProgramVertex::serialize(OStream *stream) const {
}
ProgramVertex *ProgramVertex::createFromStream(Context *rsc, IStream *stream) {
return NULL;
}
///////////////////////////////////////////////////////////////////////
ProgramVertexState::ProgramVertexState() {
}
ProgramVertexState::~ProgramVertexState() {
}
void ProgramVertexState::init(Context *rsc) {
ObjectBaseRef<const Element> matrixElem = Element::createRef(rsc, RS_TYPE_MATRIX_4X4,
RS_KIND_USER, false, 1);
ObjectBaseRef<const Element> f2Elem = Element::createRef(rsc, RS_TYPE_FLOAT_32,
RS_KIND_USER, false, 2);
ObjectBaseRef<const Element> f3Elem = Element::createRef(rsc, RS_TYPE_FLOAT_32,
RS_KIND_USER, false, 3);
ObjectBaseRef<const Element> f4Elem = Element::createRef(rsc, RS_TYPE_FLOAT_32,
RS_KIND_USER, false, 4);
Element::Builder constBuilder;
constBuilder.add(matrixElem.get(), "MV", 1);
constBuilder.add(matrixElem.get(), "P", 1);
constBuilder.add(matrixElem.get(), "TexMatrix", 1);
constBuilder.add(matrixElem.get(), "MVP", 1);
ObjectBaseRef<const Element> constInput = constBuilder.create(rsc);
Element::Builder inputBuilder;
inputBuilder.add(f4Elem.get(), "position", 1);
inputBuilder.add(f4Elem.get(), "color", 1);
inputBuilder.add(f3Elem.get(), "normal", 1);
inputBuilder.add(f2Elem.get(), "texture0", 1);
ObjectBaseRef<const Element> attrElem = inputBuilder.create(rsc);
ObjectBaseRef<Type> inputType = Type::getTypeRef(rsc, constInput.get(), 1, 0, 0, false, false);
String8 shaderString(RS_SHADER_INTERNAL);
shaderString.append("varying vec4 varColor;\n");
shaderString.append("varying vec2 varTex0;\n");
shaderString.append("void main() {\n");
shaderString.append(" gl_Position = UNI_MVP * ATTRIB_position;\n");
shaderString.append(" gl_PointSize = 1.0;\n");
shaderString.append(" varColor = ATTRIB_color;\n");
shaderString.append(" varTex0 = ATTRIB_texture0;\n");
shaderString.append("}\n");
uint32_t tmp[4];
tmp[0] = RS_PROGRAM_PARAM_CONSTANT;
tmp[1] = (uint32_t)inputType.get();
tmp[2] = RS_PROGRAM_PARAM_INPUT;
tmp[3] = (uint32_t)attrElem.get();
ProgramVertex *pv = new ProgramVertex(rsc, shaderString.string(),
shaderString.length(), tmp, 4);
Allocation *alloc = Allocation::createAllocation(rsc, inputType.get(),
RS_ALLOCATION_USAGE_SCRIPT | RS_ALLOCATION_USAGE_GRAPHICS_CONSTANTS);
pv->bindAllocation(rsc, alloc, 0);
mDefaultAlloc.set(alloc);
mDefault.set(pv);
updateSize(rsc);
}
void ProgramVertexState::updateSize(Context *rsc) {
float *f = static_cast<float *>(mDefaultAlloc->getPtr());
Matrix4x4 m;
m.loadOrtho(0,rsc->getWidth(), rsc->getHeight(),0, -1,1);
memcpy(&f[RS_PROGRAM_VERTEX_PROJECTION_OFFSET], m.m, sizeof(m));
memcpy(&f[RS_PROGRAM_VERTEX_MVP_OFFSET], m.m, sizeof(m));
m.loadIdentity();
memcpy(&f[RS_PROGRAM_VERTEX_MODELVIEW_OFFSET], m.m, sizeof(m));
memcpy(&f[RS_PROGRAM_VERTEX_TEXTURE_OFFSET], m.m, sizeof(m));
}
void ProgramVertexState::deinit(Context *rsc) {
mDefaultAlloc.clear();
mDefault.clear();
mLast.clear();
}
namespace android {
namespace renderscript {
RsProgramVertex rsi_ProgramVertexCreate(Context *rsc, const char * shaderText,
size_t shaderLength, const uint32_t * params,
size_t paramLength) {
ProgramVertex *pv = new ProgramVertex(rsc, shaderText, shaderLength, params, paramLength);
pv->incUserRef();
return pv;
}
}
}