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adamjs / d3d9_texture_streaming.md
Created December 5, 2023 02:14
D3D9 Texture Streaming

In Direct3D 9, you can upload pixels to a dynamic texture via the following:

  1. Create the Texture: In D3D9 you can create the texture using the CreateTexture method. Make sure to specify the D3DUSAGE_DYNAMIC flag in the Usage parameter.

    IDirect3DTexture9* pDynamicTexture = NULL;
HRESULT hr = pDevice->CreateTexture(width, height, 1, D3DUSAGE_DYNAMIC, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &pDynamicTexture, NULL);
@adamjs
adamjs / mouse_input_UL-1-3.md
Last active October 16, 2023 23:52
Mouse Input in Ultralight (1.3 API)

Sending Mouse Input to a View

To send mouse input to a View, you should first create a MouseEvent and then pass it to the function View::FireMouseEvent.

Mouse Move Event

You should send a Mouse Move event whenever the mouse changes position.

Here is an example of moving the mouse to (100, 100) coordinate with no buttons pressed:

@adamjs
adamjs / GetBoundsExample.cpp
Created August 31, 2020 20:31
//
// Assume you had some DOM element on your page with id == 'placeholder', for example:
//
// <html>
// <body>
// <div id='placeholder'></div>
// </body>
// </html>
//
// We can bind a custom function to a JSObjectRef in C to query it's location natively.
@adamjs
adamjs / MyApp.cpp
Last active January 16, 2020 22:48
Async callback example using JavaScript Promises (Ultralight 1.1)
#include "MyApp.h"
#include <chrono>
#include <thread>
#define WINDOW_WIDTH 600
#define WINDOW_HEIGHT 400
const char* htmlString();
MyApp::MyApp() {
@adamjs
adamjs / select_example.html
Created January 4, 2020 18:41
Example of using JavaScript/CSS to render <select> elements in Ultralight.
<!-- This is an example of using themeable JavaScript replacements to style
<select> elements in Ultralight.
-->
<html>
<head>
<link href="https://unpkg.com/mobius1-selectr@latest/dist/selectr.min.css"
rel="stylesheet" type="text/css">
<script src="https://unpkg.com/mobius1-selectr@latest/dist/selectr.min.js"
type="text/javascript"></script>
<style>
@adamjs
adamjs / promises_test.cpp
Created December 3, 2019 06:50
Testing JavaScript Promises with Ultralight 1.1
#include <AppCore/App.h>
#include <AppCore/Window.h>
#include <AppCore/Overlay.h>
#include <AppCore/JSHelpers.h>
using namespace ultralight;
const char* htmlString();
class MyApp : public LoadListener {
@adamjs
adamjs / gist:c111817b85b1aa05dc28944550497c59
Created October 16, 2019 06:36
// Inside Tab.cpp, replace your void Tab::OnAddConsoleMessage definition with all of the following:
inline std::string ToUTF8(const String& str) {
String8 utf8 = str.utf8();
return std::string(utf8.data(), utf8.length());
}
inline const char* Stringify(MessageSource source) {
switch(source) {
case kMessageSource_XML: return "XML";
@adamjs
adamjs / CAPI.h
Created February 1, 2019 22:13
Draft C API for Ultralight
#ifndef ULTRALIGHT_CAPI_H
#define ULTRALIGHT_CAPI_H
#ifndef __cplusplus
#include <stdbool.h>
#endif
#include <stddef.h>
#include <uchar.h>
#include <JavaScriptCore/JavaScript.h>
@adamjs
adamjs / gl_texture_surface.cc
Created December 16, 2014 20:49
#include "gl_texture_surface.h"
#include <iostream>
#include <cstring>
#include <cstdlib>
GLRAMTextureSurface::GLRAMTextureSurface(int width, int height) : texture_id_(0),
buffer_(0), bpp_(4), rowspan_(0), width_(width), height_(height) {
rowspan_ = width_ * bpp_;
buffer_ = new unsigned char[rowspan_ * height_];
needs_update_ = false;
@adamjs
adamjs / _z.md
Created March 24, 2014 23:19

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