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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <cstdlib>
#include <cstring>
#include <map>
#include <string>
#include <vector>
#include "nacl_mounts/nacl_mounts.h"
#include "ppapi/cpp/fullscreen.h"
#include "ppapi/cpp/graphics_3d.h"
#include "ppapi/cpp/input_event.h"
#include "ppapi/cpp/message_loop.h"
#include "ppapi/cpp/mouse_lock.h"
#include "ppapi/cpp/rect.h"
#include "ppapi/cpp/size.h"
#include "ppapi/cpp/var.h"
#include "ppapi/lib/gl/gles2/gl2ext_ppapi.h"
#include "ppapi/lib/gl/include/GLES2/gl2.h"
#include "ppapi/utility/completion_callback_factory.h"
#include "ppapi_main/ppapi_instance.h"
#include "ppapi_main/ppapi_instance3d.h"
#include "ppapi_main/ppapi_main.h"
static const uint32_t kReturnKeyCode = 13;
void* PPAPI_CreateInstance3D(PP_Instance inst, const char *args[]) {
return static_cast<void*>(new PPAPIInstance3D(inst, args));
}
int32_t *PPAPIGet3DAttribs(uint32_t width, uint32_t height) {
static int32_t attribs[] = {
PP_GRAPHICS3DATTRIB_WIDTH, 0,
PP_GRAPHICS3DATTRIB_HEIGHT, 0,
PP_GRAPHICS3DATTRIB_ALPHA_SIZE, 8,
PP_GRAPHICS3DATTRIB_DEPTH_SIZE, 24,
PP_GRAPHICS3DATTRIB_STENCIL_SIZE, 8,
PP_GRAPHICS3DATTRIB_SAMPLES, 0,
PP_GRAPHICS3DATTRIB_SAMPLE_BUFFERS, 0,
PP_GRAPHICS3DATTRIB_NONE
};
attribs[1] = width;
attribs[3] = height;
printf("Building attribs for %dx%d.\n", width, height);
return attribs;
}
void PPAPIBuildContext(uint32_t width, uint32_t height) {
glViewport(0, 0, width, height);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
printf("Built Context %d, %d.\n", width, height);
}
PPAPIInstance3D* PPAPIInstance3D::GetInstance3D() {
return static_cast<PPAPIInstance3D*>(PPAPI_GetInstanceObject());
}
void *PPAPIInstance3D::RenderLoop(void *this_ptr) {
PPAPIInstance3D *pInst = static_cast<PPAPIInstance3D*>(this_ptr);
pInst->render_loop_.AttachToCurrentThread();
pInst->render_loop_.Run();
return NULL;
}
void PPAPIInstance3D::Swapped(int result) {
if (result != 0) {
printf("Swapped result=%d.\n", result);
}
if (is_context_bound_) {
PPAPIRender(size_.width(), size_.height());
int result;
result = device_context_.SwapBuffers(callback_factory_.NewCallback(
&PPAPIInstance3D::Swapped));
if (result == PP_OK_COMPLETIONPENDING) return;
printf("Failed swap with %d.\n", result);
}
// Failed to draw, so add a callback for the future.
pp::MessageLoop::GetCurrent().PostWork(callback_factory_.NewCallback(
&PPAPIInstance3D::Swapped), 100);
}
void PPAPIInstance3D::BuildContext(int32_t result, const pp::Size& new_size) {
printf("Building context.\n");
// If already bound, try to resize to avoid the need to rebuild the context.
if (is_context_bound_) {
// If the size is correct, then just skip this request.
if (new_size == size_) {
printf("Skipped building context, same size as bound.\n");
return;
}
int err = device_context_.ResizeBuffers(new_size.width(),
new_size.height());
// Resized the context, we are done
if (err == PP_OK) {
size_ = new_size;
fprintf(stderr, "Resized context from %dx%d to %dx%d",
size_.width(), size_.height(), new_size.width(),
new_size.height());
PPAPIBuildContext(size_.width(), size_.height());
return;
}
// Failed to resize, fall through and start from scratch
fprintf(stderr, "Failed to resize buffer from %dx%d to %dx%d",
size_.width(), size_.height(), new_size.width(), new_size.height());
is_context_bound_ = false;
}
printf("Calling create context....\n");
size_ = new_size;
device_context_ = pp::Graphics3D(this, PPAPIGet3DAttribs(size_.width(),
size_.height()));
printf("Got Context!\n");
is_context_bound_ = BindGraphics(device_context_);
printf("Context is bound=%d\n", is_context_bound_);
// The the context regardless to make sure we have a valid one
glSetCurrentContextPPAPI(device_context_.pp_resource());
if (is_context_bound_) {
PPAPIBuildContext(size_.width(), size_.height());
device_context_.SwapBuffers(callback_factory_.NewCallback(
&PPAPIInstance3D::Swapped));
} else {
fprintf(stderr, "Failed to bind context for %dx%d.\n", size_.width(),
size_.height());
}
}
PPAPIInstance3D::PPAPIInstance3D(PP_Instance instance, const char *args[])
: PPAPIInstance(instance, args),
mouse_locked_(false),
callback_factory_(this),
fullscreen_(this),
is_context_bound_(false),
was_fullscreen_(false),
render_loop_(this),
main_thread_3d_(true) {
glInitializePPAPI(pp::Module::Get()->get_browser_interface());
}
PPAPIInstance3D::~PPAPIInstance3D() {
if (is_context_bound_) {
is_context_bound_ = false;
// Cleanup code?
}
}
bool PPAPIInstance3D::Init(uint32_t arg,
const char* argn[],
const char* argv[]) {
if (!PPAPIInstance::Init(arg, argn, argv)) {
return false;
}
for (uint32_t a=0; a < arg; a++) {
printf("%s=%s\n", argn[a], argv[a]);
}
const char *use_main = GetProperty("pm_main3d", "true");
main_thread_3d_ = !strcasecmp(use_main, "true");
printf("Using 3D on main thread = %s.\n", use_main);
if (!main_thread_3d_) {
pthread_t render_thread;
int ret = pthread_create(&render_thread, NULL, RenderLoop,
static_cast<void*>(this));
return ret == 0;
}
return true;
}
void PPAPIInstance3D::DidChangeView(const pp::View& view) {
pp::Size new_size = view.GetRect().size();
printf("View changed: %dx%d\n", new_size.width(), new_size.height());
// Build or update the 3D context when the view changes.
if (main_thread_3d_) {
// If using the main thread, update the context immediately
BuildContext(0, new_size);
} else {
// If using a seperate thread, then post the message so we can build the
// context on the correct thread.
render_loop_.PostWork(callback_factory_.NewCallback(
&PPAPIInstance3D::BuildContext, new_size));
}
}
bool PPAPIInstance3D::ToggleFullscreen() {
// Ignore switch if in transition
if (!is_context_bound_)
return false;
if (fullscreen_.IsFullscreen()) {
if (!fullscreen_.SetFullscreen(false)) {
printf("Could not leave fullscreen mode\n");
return false;
}
} else {
if (!fullscreen_.SetFullscreen(true)) {
printf("Could not enter fullscreen mode\n");
return false;
}
}
return true;
}
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