cef/tests/cefclient/browser/osr_renderer.h

95 lines
2.7 KiB
C++

// Copyright (c) 2012 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license
// that can be found in the LICENSE file.
#ifndef CEF_TESTS_CEFCLIENT_BROWSER_OSR_RENDERER_H_
#define CEF_TESTS_CEFCLIENT_BROWSER_OSR_RENDERER_H_
#pragma once
#include <vector>
#include "include/cef_browser.h"
#include "include/cef_render_handler.h"
#include "tests/cefclient/browser/osr_renderer_settings.h"
// Enable shader-based rendering for Linux only. Windows still uses OpenGL 1.1
// to avoid the added complexity of linking newer OpenGL APIs on that platform.
// MacOS has deprecated OpenGL and we should eventually provide a Metal-based
// implementation on that platform.
#if defined(OS_LINUX)
#define USE_SHADERS 1
#else
#define USE_SHADERS 0
#endif
namespace client {
class OsrRenderer {
public:
explicit OsrRenderer(const OsrRendererSettings& settings);
~OsrRenderer();
// Initialize the OpenGL environment.
void Initialize();
// Clean up the OpenGL environment.
void Cleanup();
// Render to the screen.
void Render();
// Forwarded from CefRenderHandler callbacks.
void OnPopupShow(CefRefPtr<CefBrowser> browser, bool show);
// |rect| must be in pixel coordinates.
void OnPopupSize(CefRefPtr<CefBrowser> browser, const CefRect& rect);
void OnPaint(CefRefPtr<CefBrowser> browser,
CefRenderHandler::PaintElementType type,
const CefRenderHandler::RectList& dirtyRects,
const void* buffer,
int width,
int height);
// Apply spin.
void SetSpin(float spinX, float spinY);
void IncrementSpin(float spinDX, float spinDY);
int GetViewWidth() const { return view_width_; }
int GetViewHeight() const { return view_height_; }
CefRect popup_rect() const { return popup_rect_; }
CefRect original_popup_rect() const { return original_popup_rect_; }
void ClearPopupRects();
private:
CefRect GetPopupRectInWebView(const CefRect& original_rect);
inline bool IsTransparent() const {
return CefColorGetA(settings_.background_color) == 0;
}
const OsrRendererSettings settings_;
bool initialized_ = false;
unsigned int texture_id_ = 0;
#if USE_SHADERS
unsigned int vao_id_ = 0;
unsigned int vbo_id_ = 0;
unsigned int screen_shader_program_id_ = 0;
unsigned int update_rect_shader_program_id_ = 0;
std::vector<float> line_vertices_;
#endif
int view_width_ = 0;
int view_height_ = 0;
CefRect popup_rect_;
CefRect original_popup_rect_;
float spin_x_ = 0;
float spin_y_ = 0;
CefRect update_rect_;
DISALLOW_COPY_AND_ASSIGN(OsrRenderer);
};
} // namespace client
#endif // CEF_TESTS_CEFCLIENT_BROWSER_OSR_RENDERER_H_