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Commit f203b83d authored by Alex Sakhartchouk's avatar Alex Sakhartchouk
Browse files

Add multisampling support to renderscript. 

Change-Id: I38bf50a5b54aa5df7e4f76ea40027d9e36dc4b5d
parent eb8b1fe9

libs/rs/driver/rsdGL.cpp

+34 −10
Original line number Diff line number Diff line
@@ -173,15 +173,12 @@ void rsdGLShutdown(const Context *rsc) { 
    }

}



bool rsdGLInit(const Context *rsc) {

    RsdHal *dc = (RsdHal *)rsc->mHal.drv;

void getConfigData(const Context *rsc,

                   EGLint *configAttribs, size_t configAttribsLen,

                   uint32_t numSamples) {

    memset(configAttribs, 0, configAttribsLen*sizeof(*configAttribs));



    dc->gl.egl.numConfigs = -1;

    EGLint configAttribs[128];

    EGLint *configAttribsPtr = configAttribs;

    EGLint context_attribs2[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };



    memset(configAttribs, 0, sizeof(configAttribs));



    configAttribsPtr[0] = EGL_SURFACE_TYPE;

    configAttribsPtr[1] = EGL_WINDOW_BIT;
@@ -221,8 +218,25 @@ bool rsdGLInit(const Context *rsc) { 
        configAttribsPtr += 2;

    }



    if (numSamples > 1) {

        configAttribsPtr[0] = EGL_SAMPLE_BUFFERS;

        configAttribsPtr[1] = 1;

        configAttribsPtr[2] = EGL_SAMPLES;

        configAttribsPtr[3] = numSamples;

        configAttribsPtr += 4;

    }



    configAttribsPtr[0] = EGL_NONE;

    rsAssert(configAttribsPtr < (configAttribs + (sizeof(configAttribs) / sizeof(EGLint))));

    rsAssert(configAttribsPtr < (configAttribs + configAttribsLen));

}



bool rsdGLInit(const Context *rsc) {

    RsdHal *dc = (RsdHal *)rsc->mHal.drv;



    dc->gl.egl.numConfigs = -1;



    EGLint configAttribs[128];

    EGLint context_attribs2[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };



    ALOGV("%p initEGL start", rsc);

    rsc->setWatchdogGL("eglGetDisplay", __LINE__, __FILE__);
@@ -237,8 +251,18 @@ bool rsdGLInit(const Context *rsc) { 


    EGLint numConfigs = -1, n = 0;

    rsc->setWatchdogGL("eglChooseConfig", __LINE__, __FILE__);



    // Try minding a multisample config that matches the user request

    uint32_t minSample = rsc->mUserSurfaceConfig.samplesMin;

    uint32_t prefSample = rsc->mUserSurfaceConfig.samplesPref;

    for (uint32_t sampleCount = prefSample; sampleCount >= minSample; sampleCount--) {

        getConfigData(rsc, configAttribs, (sizeof(configAttribs) / sizeof(EGLint)), sampleCount);

        ret = eglChooseConfig(dc->gl.egl.display, configAttribs, 0, 0, &numConfigs);

        checkEglError("eglGetConfigs", ret);

        if (numConfigs > 0) {

            break;

        }

    }



    eglSwapInterval(dc->gl.egl.display, 0);