static void test_mipmap(int maxlevels, int w, int h, unsigned filt)
{
RD_START("mipmap", "maxlevels=%d, texsize=%dx%d", maxlevels, w, h);
display = get_display();
/* get an appropriate EGL frame buffer configuration */
ECHK(eglChooseConfig(display, config_attribute_list, &config, 1, &num_config));
DEBUG_MSG("num_config: %d", num_config);
/* create an EGL rendering context */
ECHK(context = eglCreateContext(display, config, EGL_NO_CONTEXT, context_attribute_list));
surface = make_window(display, config, 400, 240);
ECHK(eglQuerySurface(display, surface, EGL_WIDTH, &width));
ECHK(eglQuerySurface(display, surface, EGL_HEIGHT, &height));
DEBUG_MSG("Buffer: %dx%d", width, height);
/* connect the context to the surface */
ECHK(eglMakeCurrent(display, surface, surface, context));
programObject = get_program(vShaderStr, fShaderStr);
link_program(programObject);
// Get the attribute locations
GCHK(positionLoc = glGetAttribLocation(programObject, "a_position"));
GCHK(texCoordLoc = glGetAttribLocation(programObject, "a_texCoord"));
// Get the sampler location
GCHK(samplerLoc = glGetUniformLocation(programObject, "s_texture"));
// Get the offset location
GCHK(offsetLoc = glGetUniformLocation(programObject, "u_offset"));
// Load the texture
GCHK(textureId = CreateMipMappedTexture2D(maxlevels, w, h, filt));
GCHK(glClearColor(0.0f, 0.0f, 0.0f, 0.0f));
GCHK(Draw());
ECHK(eglSwapBuffers(display, surface));
GCHK(glFlush());
#ifndef BIONIC
sleep(5);
#endif
ECHK(eglDestroySurface(display, surface));
#ifdef BIONIC
ECHK(eglTerminate(display));
#endif
RD_END();
}
bool initialize() override
{
constexpr char kVS[] = R"(uniform float u_offset;
attribute vec4 a_position;
attribute vec2 a_texCoord;
varying vec2 v_texCoord;
void main()
{
gl_Position = a_position;
gl_Position.x += u_offset;
v_texCoord = a_texCoord;
})";
constexpr char kFS[] = R"(precision mediump float;
varying vec2 v_texCoord;
uniform sampler2D s_texture;
void main()
{
gl_FragColor = texture2D(s_texture, v_texCoord);
})";
mProgram = CompileProgram(kVS, kFS);
if (!mProgram)
{
return false;
}
// Get the attribute locations
mPositionLoc = glGetAttribLocation(mProgram, "a_position");
mTexCoordLoc = glGetAttribLocation(mProgram, "a_texCoord");
// Get the sampler location
mSamplerLoc = glGetUniformLocation(mProgram, "s_texture");
// Get the offset location
mOffsetLoc = glGetUniformLocation(mProgram, "u_offset");
// Load the texture
mTextureID = CreateMipMappedTexture2D();
// Check Anisotropy limits
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &mMaxAnisotropy);
glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
return true;
}
///
// Initialize the shader and program object
//
int Init ( ESContext *esContext )
{
UserData *userData = esContext->userData;
GLbyte vShaderStr[] =
"uniform float u_offset; \n"
"attribute vec4 a_position; \n"
"attribute vec2 a_texCoord; \n"
"varying vec2 v_texCoord; \n"
"void main() \n"
"{ \n"
" gl_Position = a_position; \n"
" gl_Position.x += u_offset;\n"
" v_texCoord = a_texCoord; \n"
"} \n";
GLbyte fShaderStr[] =
"precision mediump float; \n"
"varying vec2 v_texCoord; \n"
"uniform sampler2D s_texture; \n"
"void main() \n"
"{ \n"
" gl_FragColor = texture2D( s_texture, v_texCoord );\n"
"} \n";
// Load the shaders and get a linked program object
userData->programObject = esLoadProgram ( vShaderStr, fShaderStr );
// Get the attribute locations
userData->positionLoc = glGetAttribLocation ( userData->programObject, "a_position" );
userData->texCoordLoc = glGetAttribLocation ( userData->programObject, "a_texCoord" );
// Get the sampler location
userData->samplerLoc = glGetUniformLocation ( userData->programObject, "s_texture" );
// Get the offset location
userData->offsetLoc = glGetUniformLocation( userData->programObject, "u_offset" );
// Load the texture
userData->textureId = CreateMipMappedTexture2D ();
glClearColor ( 0.0f, 0.0f, 0.0f, 0.0f );
return TRUE;
}
///
// Initialize the shader and program object
//
int Init ( ESContext *esContext )
{
UserData *userData = esContext->userData;
char vShaderStr[] =
"#version 300 es \n"
"uniform float u_offset; \n"
"layout(location = 0) in vec4 a_position; \n"
"layout(location = 1) in vec2 a_texCoord; \n"
"out vec2 v_texCoord; \n"
"void main() \n"
"{ \n"
" gl_Position = a_position; \n"
" gl_Position.x += u_offset; \n"
" v_texCoord = a_texCoord; \n"
"} \n";
char fShaderStr[] =
"#version 300 es \n"
"precision mediump float; \n"
"in vec2 v_texCoord; \n"
"layout(location = 0) out vec4 outColor; \n"
"uniform sampler2D s_texture; \n"
"void main() \n"
"{ \n"
" outColor = texture( s_texture, v_texCoord ); \n"
"} \n";
// Load the shaders and get a linked program object
userData->programObject = esLoadProgram ( vShaderStr, fShaderStr );
// Get the sampler location
userData->samplerLoc = glGetUniformLocation ( userData->programObject, "s_texture" );
// Get the offset location
userData->offsetLoc = glGetUniformLocation ( userData->programObject, "u_offset" );
// Load the texture
userData->textureId = CreateMipMappedTexture2D ();
glClearColor ( 1.0f, 1.0f, 1.0f, 0.0f );
return TRUE;
}
