bool ShaderGLES2::bind() {
if (active != this || !version || new_conditional_version.key != conditional_version.key) {
conditional_version = new_conditional_version;
version = get_current_version();
} else {
return false;
}
ERR_FAIL_COND_V(!version, false);
if (!version->ok) { //broken, unable to bind (do not throw error, you saw it before already when it failed compilation).
glUseProgram(0);
return false;
}
glUseProgram(version->id);
// find out uniform names and locations
int count;
glGetProgramiv(version->id, GL_ACTIVE_UNIFORMS, &count);
version->uniform_names.resize(count);
for (int i = 0; i < count; i++) {
GLchar uniform_name[1024];
int len = 0;
GLint size = 0;
GLenum type;
glGetActiveUniform(version->id, i, 1024, &len, &size, &type, uniform_name);
uniform_name[len] = '\0';
String name = String((const char *)uniform_name);
version->uniform_names.write[i] = name;
}
bind_uniforms();
DEBUG_TEST_ERROR("use program");
active = this;
uniforms_dirty = true;
return true;
}
void LineRenderer::render(EngineUniforms *engineUniforms, Material* replacementMaterial) {
if (!enabled()){
return;
}
#ifndef KICK_CONTEXT_ES2
if (mSmoothLine){
glEnable(GL_LINE_SMOOTH);
} else {
glDisable(GL_LINE_SMOOTH);
}
#endif
auto mat = replacementMaterial?replacementMaterial : mMaterial;
auto shader = mat->shader().get();
if (mPoints.size()){
mMesh->bind(shader);
shader->bind_uniforms(mat, engineUniforms, mTransform.get());
mMesh->render(0);
}
}
void Canvas::renderSprites(vector<Sprite*> &sprites, kick::EngineUniforms *engineUniforms, Material* replacementMaterial) {
if (sprites.size() == 0){
return;
}
updateVertexBuffer(sprites);
auto mat = replacementMaterial ? replacementMaterial : mMaterial;
if (!replacementMaterial ){
mMaterial->setShader(sprites[0]->textureAtlas()->shader());
mMaterial->setUniform("mainTexture", sprites[0]->textureAtlas()->texture());
}
auto shader = mat->shader();
assert(shader);
mMesh->bind(shader.get());
shader->bind_uniforms(mMaterial, engineUniforms, transform().get());
mMesh->render(0);
sprites.clear();
}
