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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"
#include <GLES/gl.h>
#include <GLES/glext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
using namespace android;
using namespace android::renderscript;
ProgramFragment::ProgramFragment(Context *rsc, const uint32_t * params,
uint32_t paramLength) :
Program(rsc)
{
mAllocFile = __FILE__;
mAllocLine = __LINE__;
rsAssert(paramLength = 5);
mEnvModes[0] = (RsTexEnvMode)params[0];
mTextureFormats[0] = params[1];
mEnvModes[1] = (RsTexEnvMode)params[2];
mTextureFormats[1] = params[3];
mPointSpriteEnable = params[4] != 0;
mTextureEnableMask = 0;
if (mEnvModes[0]) {
mTextureEnableMask |= 1;
}
if (mEnvModes[1]) {
mTextureEnableMask |= 2;
}
init(rsc);
}
ProgramFragment::ProgramFragment(Context *rsc, const char * shaderText,
uint32_t shaderLength, const uint32_t * params,
uint32_t paramLength) :
Program(rsc, shaderText, shaderLength, params, paramLength)
{
mAllocFile = __FILE__;
mAllocLine = __LINE__;
init(rsc);
mTextureEnableMask = (1 << mTextureCount) -1;
}
ProgramFragment::~ProgramFragment()
{
}
void ProgramFragment::setupGL(const Context *rsc, ProgramFragmentState *state)
{
if ((state->mLast.get() == this) && !mDirty) {
return;
}
state->mLast.set(this);
for (uint32_t ct=0; ct < MAX_TEXTURE; ct++) {
glActiveTexture(GL_TEXTURE0 + ct);
if (!(mTextureEnableMask & (1 << ct)) || !mTextures[ct].get()) {
glDisable(GL_TEXTURE_2D);
continue;
}
glEnable(GL_TEXTURE_2D);
if (rsc->checkVersion1_1()) {
if (mPointSpriteEnable) {
glEnable(GL_POINT_SPRITE_OES);
} else {
glDisable(GL_POINT_SPRITE_OES);
}
glTexEnvi(GL_POINT_SPRITE_OES, GL_COORD_REPLACE_OES, mPointSpriteEnable);
}
mTextures[ct]->uploadCheck(rsc);
glBindTexture(GL_TEXTURE_2D, mTextures[ct]->getTextureID());
switch(mEnvModes[ct]) {
case RS_TEX_ENV_MODE_NONE:
rsAssert(0);
break;
case RS_TEX_ENV_MODE_REPLACE:
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
break;
case RS_TEX_ENV_MODE_MODULATE:
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
break;
case RS_TEX_ENV_MODE_DECAL:
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
break;
}
if (mSamplers[ct].get()) {
mSamplers[ct]->setupGL(rsc, mTextures[ct]->getType()->getIsNp2());
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
}
// Gross hack.
if (ct == 2) {
glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, GL_ADD);
glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_RGB, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_SRC1_RGB, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_COLOR);
glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_ADD);
glTexEnvi(GL_TEXTURE_ENV, GL_SRC0_ALPHA, GL_PREVIOUS);
glTexEnvi(GL_TEXTURE_ENV, GL_SRC1_ALPHA, GL_TEXTURE);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA, GL_SRC_ALPHA);
}
}
glActiveTexture(GL_TEXTURE0);
mDirty = false;
rsc->checkError("ProgramFragment::setupGL");
}
void ProgramFragment::setupGL2(const Context *rsc, ProgramFragmentState *state, ShaderCache *sc)
{
//LOGE("sgl2 frag1 %x", glGetError());
if ((state->mLast.get() == this) && !mDirty) {
//return;
}
state->mLast.set(this);
rsc->checkError("ProgramFragment::setupGL2 start");
for (uint32_t ct=0; ct < MAX_TEXTURE; ct++) {
glActiveTexture(GL_TEXTURE0 + ct);
if (!(mTextureEnableMask & (1 << ct)) || !mTextures[ct].get()) {
continue;
}
mTextures[ct]->uploadCheck(rsc);
glBindTexture(GL_TEXTURE_2D, mTextures[ct]->getTextureID());
rsc->checkError("ProgramFragment::setupGL2 tex bind");
if (mSamplers[ct].get()) {
mSamplers[ct]->setupGL(rsc, mTextures[ct]->getType()->getIsNp2());
} else {
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
rsc->checkError("ProgramFragment::setupGL2 tex env");
}
glUniform1i(sc->fragUniformSlot(ct), ct);
rsc->checkError("ProgramFragment::setupGL2 uniforms");
}
glActiveTexture(GL_TEXTURE0);
mDirty = false;
rsc->checkError("ProgramFragment::setupGL2");
}
void ProgramFragment::loadShader(Context *rsc) {
Program::loadShader(rsc, GL_FRAGMENT_SHADER);
}
void ProgramFragment::createShader()
{
mShader.setTo("precision mediump float;\n");
mShader.append("varying vec4 varColor;\n");
mShader.append("varying vec4 varTex0;\n");
if (mUserShader.length() > 1) {
for (uint32_t ct=0; ct < mTextureCount; ct++) {
char buf[256];
sprintf(buf, "uniform sampler2D uni_Tex%i;\n", ct);
mShader.append(buf);
}
mShader.append(mUserShader);
} else {
uint32_t mask = mTextureEnableMask;
uint32_t texNum = 0;
while (mask) {
if (mask & 1) {
char buf[64];
mShader.append("uniform sampler2D uni_Tex");
sprintf(buf, "%i", texNum);
mShader.append(buf);
mShader.append(";\n");
}
mask >>= 1;
texNum++;
}
mShader.append("void main() {\n");
mShader.append(" vec4 col = varColor;\n");
if (mTextureEnableMask) {
if (mPointSpriteEnable) {
mShader.append(" vec2 t0 = gl_PointCoord;\n");
} else {
mShader.append(" vec2 t0 = varTex0.xy;\n");
}
}
mask = mTextureEnableMask;
texNum = 0;
while (mask) {
if (mask & 1) {
switch(mEnvModes[texNum]) {
case RS_TEX_ENV_MODE_NONE:
rsAssert(0);
break;
case RS_TEX_ENV_MODE_REPLACE:
switch(mTextureFormats[texNum]) {
case 1:
mShader.append(" col.a = texture2D(uni_Tex0, t0).a;\n");
break;
case 2:
mShader.append(" col.rgba = texture2D(uni_Tex0, t0).rgba;\n");
break;
case 3:
mShader.append(" col.rgb = texture2D(uni_Tex0, t0).rgb;\n");
break;
case 4:
mShader.append(" col.rgba = texture2D(uni_Tex0, t0).rgba;\n");
break;
}
break;
case RS_TEX_ENV_MODE_MODULATE:
switch(mTextureFormats[texNum]) {
case 1:
mShader.append(" col.a *= texture2D(uni_Tex0, t0).a;\n");
break;
case 2:
mShader.append(" col.rgba *= texture2D(uni_Tex0, t0).rgba;\n");
break;
case 3:
mShader.append(" col.rgb *= texture2D(uni_Tex0, t0).rgb;\n");
break;
case 4:
mShader.append(" col.rgba *= texture2D(uni_Tex0, t0).rgba;\n");
break;
}
break;
case RS_TEX_ENV_MODE_DECAL:
mShader.append(" col = texture2D(uni_Tex0, t0);\n");
break;
}
}
mask >>= 1;
texNum++;
}
//mShader.append(" col.a = 1.0;\n");
//mShader.append(" col.r = 0.5;\n");
mShader.append(" gl_FragColor = col;\n");
mShader.append("}\n");
}
}
void ProgramFragment::init(Context *rsc)
{
mUniformCount = 2;
mUniformNames[0].setTo("uni_Tex0");
mUniformNames[1].setTo("uni_Tex1");
createShader();
}
ProgramFragmentState::ProgramFragmentState()
{
mPF = NULL;
}
ProgramFragmentState::~ProgramFragmentState()
{
delete mPF;
}
void ProgramFragmentState::init(Context *rsc)
{
uint32_t tmp[5] = {
RS_TEX_ENV_MODE_NONE, 0,
RS_TEX_ENV_MODE_NONE, 0,
0
};
ProgramFragment *pf = new ProgramFragment(rsc, tmp, 5);
mDefault.set(pf);
pf->init(rsc);
}
void ProgramFragmentState::deinit(Context *rsc)
{
mDefault.clear();
mLast.clear();
}
namespace android {
namespace renderscript {
RsProgramFragment rsi_ProgramFragmentCreate(Context *rsc,
const uint32_t * params,
uint32_t paramLength)
{
ProgramFragment *pf = new ProgramFragment(rsc, params, paramLength);
pf->incUserRef();
LOGE("rsi_ProgramFragmentCreate %p", pf);
return pf;
}
RsProgramFragment rsi_ProgramFragmentCreate2(Context *rsc, const char * shaderText,
uint32_t shaderLength, const uint32_t * params,
uint32_t paramLength)
{
ProgramFragment *pf = new ProgramFragment(rsc, shaderText, shaderLength, params, paramLength);
pf->incUserRef();
LOGE("rsi_ProgramFragmentCreate2 %p", pf);
return pf;
}
}
}