virtual tcu::UVec3 getTextureDimension (void) const { return tcu::UVec3(m_texture.getWidth(), m_texture.getHeight(), 1); }
void ReadPixelsTest::render (tcu::Texture2D& reference)
{
// Create program
const char* vertexSource =
"attribute mediump vec2 a_coord;\n"
"void main (void)\n"
"{\n"
"\tgl_Position = vec4(a_coord, 0.0, 1.0);\n"
"}\n";
const char* fragmentSource =
"void main (void)\n"
"{\n"
"\tgl_FragColor = vec4(0.0, 0.0, 0.0, 1.0);\n"
"}\n";
glu::ShaderProgram program(m_context.getRenderContext(), glu::makeVtxFragSources(vertexSource, fragmentSource));
m_testCtx.getLog() << program;
TCU_CHECK(program.isOk());
GLU_CHECK_CALL(glUseProgram(program.getProgram()));
// Render
{
const float coords[] =
{
-0.5f, -0.5f,
0.5f, -0.5f,
0.5f, 0.5f,
0.5f, 0.5f,
-0.5f, 0.5f,
-0.5f, -0.5f
};
GLuint coordLoc;
coordLoc = glGetAttribLocation(program.getProgram(), "a_coord");
GLU_CHECK_MSG("glGetAttribLocation()");
GLU_CHECK_CALL(glEnableVertexAttribArray(coordLoc));
GLU_CHECK_CALL(glVertexAttribPointer(coordLoc, 2, GL_FLOAT, GL_FALSE, 0, coords));
GLU_CHECK_CALL(glDrawArrays(GL_TRIANGLES, 0, 6));
GLU_CHECK_CALL(glDisableVertexAttribArray(coordLoc));
}
// Render reference
const int coordX1 = (int)((-0.5f * reference.getWidth() / 2.0f) + reference.getWidth() / 2.0f);
const int coordY1 = (int)((-0.5f * reference.getHeight() / 2.0f) + reference.getHeight() / 2.0f);
const int coordX2 = (int)(( 0.5f * reference.getWidth() / 2.0f) + reference.getWidth() / 2.0f);
const int coordY2 = (int)(( 0.5f * reference.getHeight() / 2.0f) + reference.getHeight() / 2.0f);
for (int x = 0; x < reference.getWidth(); x++)
{
if (x < coordX1 || x > coordX2)
continue;
for (int y = 0; y < reference.getHeight(); y++)
{
if (y >= coordY1 && y <= coordY2)
reference.getLevel(0).setPixel(tcu::Vec4(0.0f, 0.0f, 0.0f, 1.0f), x, y);
}
}
}