Method DisableTextures

GTE/Graphics/GL46/GL46Engine.cpp:625–662

}

void GL46Engine::DisableTextures(Shader const* shader, GLuint program)
{
    int32_t const index = TextureSingle::shaderDataLookup;
    for (auto const& ts : shader->GetData(index))
    {
        if (!ts.object)
        {
            LogError(ts.name + " is null texture.");
        }

        auto texture = static_cast<GL46TextureSingle*>(Get(ts.object));
        if (!texture)
        {
            LogError("Failed to get texture.");
        }

        // By convension, ts.isGpuWritable is true for "image*" and false
        // for "sampler*".
        if (ts.isGpuWritable)
        {
            // For "image*" objects in the shader, use "readonly" or
            // "writeonly" attributes in the layout to control R/W/RW access
            // using shader compiler and then connect as GL_READ_WRITE here.
            // Always bind level 0 and all layers.  TODO: Decide whether
            // unbinding the texture from the image unit is necessary.
            // glBindImageTexture(unit, 0, 0, 0, 0, 0, 0);
            GLint unit = mTextureImageUnitMap.GetUnit(program, ts.bindPoint);
            mTextureImageUnitMap.ReleaseUnit(unit);
        }
        else
        {
            GLint unit = mTextureSamplerUnitMap.GetUnit(program, ts.bindPoint);
            glActiveTexture(GL_TEXTURE0 + unit);
            glBindTexture(texture->GetTarget(), 0);
            mTextureSamplerUnitMap.ReleaseUnit(unit);
        }
    }
}

void GL46Engine::EnableTextureArrays(Shader const* shader, GLuint program)
{