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Use fix ratio to render frame in window

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This commit is contained in:
dijunkun
2024-06-25 11:12:10 +08:00
parent e693d920d3
commit a3f745d441
6 changed files with 37 additions and 95 deletions
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2
src/multiple_windows/menu_window.cpp
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@@ -6,7 +6,7 @@ int Render::MenuWindow() {
ImGui::SetNextWindowPos(ImVec2(0, 0), ImGuiCond_Always);
ImGui::BeginChild("MenuWindow",
ImVec2(main_window_width_, menu_window_height_),
ImGuiChildFlags_Border);
ImGuiChildFlags_Border, ImGuiWindowFlags_NoScrollbar);
if (ImGui::BeginMenuBar()) {
if (ImGui::BeginMenu("Menu")) {

85
src/multiple_windows/render.cpp
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@@ -187,8 +187,8 @@ int Render::Run() {
// Create main window with SDL_Renderer graphics context
SDL_WindowFlags window_flags =
(SDL_WindowFlags)(SDL_WINDOW_ALLOW_HIGHDPI | SDL_WINDOW_RESIZABLE);
main_window_ = SDL_CreateWindow("Remote Desk", SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, main_window_width_,
main_window_ = SDL_CreateWindow("Remote Desk", SDL_WINDOWPOS_UNDEFINED,
SDL_WINDOWPOS_UNDEFINED, main_window_width_,
main_window_height_, window_flags);
SDL_DisplayMode DM;
@@ -203,30 +203,20 @@ int Render::Run() {
return 0;
}
// Auto scaling for the render frame
SDL_RenderSetLogicalSize(sdl_renderer_, main_window_width_,
main_window_height_);
pixformat_ = SDL_PIXELFORMAT_NV12;
// sdl_texture_ =
// SDL_CreateTexture(sdl_renderer_, pixformat_,
// SDL_TEXTUREACCESS_STREAMING,
// texture_width_, texture_height_);
sdl_texture_ =
SDL_CreateTexture(sdl_renderer_, pixformat_, SDL_TEXTUREACCESS_STREAMING,
texture_width_, texture_height_);
// video_window_ =
// SDL_CreateWindow("Video", SDL_WINDOWPOS_CENTERED,
// SDL_WINDOWPOS_CENTERED,
// main_window_width_, main_window_height_,
// window_flags);
// video_renderer_ = SDL_CreateRenderer(
// video_window_, -1, SDL_RENDERER_PRESENTVSYNC |
// SDL_RENDERER_ACCELERATED);
// if (video_renderer_ == nullptr) {
// SDL_Log("Error creating SDL_Renderer!");
// return 0;
// }
// video_texture_ = SDL_CreateTexture(video_renderer_, pixformat_,
// SDL_TEXTUREACCESS_STREAMING,
// texture_width_, texture_height_);
sdl_rect_.x = 0;
sdl_rect_.y = 0;
sdl_rect_.w = main_window_width_;
sdl_rect_.h = main_window_height_;
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
@@ -347,7 +337,9 @@ int Render::Run() {
ImGui_ImplSDL2_NewFrame();
ImGui::NewFrame();
MainWindow();
if (!connection_established_ || !received_frame_) {
MainWindow();
}
SDL_Event event;
while (SDL_PollEvent(&event)) {
@@ -355,35 +347,29 @@ int Render::Run() {
if (event.type == SDL_QUIT) {
exit_ = true;
} else if (event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED) {
int window_w_last = main_window_width_;
int window_h_last = main_window_height_;
SDL_GetWindowSize(main_window_, &main_window_width_,
&main_window_height_);
// int w_change_ratio = abs(main_window_width_ - window_w_last) / 16;
// int h_change_ratio = abs(main_window_height_ - window_h_last) / 9;
sdl_rect_.x = 0;
sdl_rect_.y = 0;
if (main_window_width_ * 9 / 16 > main_window_height_) {
sdl_rect_.w = main_window_height_ * 16 / 9;
sdl_rect_.h = main_window_height_;
} else {
sdl_rect_.w = main_window_width_;
sdl_rect_.h = main_window_width_ * 9 / 16;
}
// if (w_change_ratio > h_change_ratio) {
// main_window_height_ = main_window_width_ * 9 / 16;
// } else {
// main_window_width_ = main_window_height_ * 16 / 9;
// }
main_window_width_last_ = main_window_width_;
main_window_height_last_ = main_window_height_;
// SDL_SetWindowSize(main_window_, main_window_width_,
// main_window_height_);
} else if (event.type == SDL_WINDOWEVENT &&
event.window.event == SDL_WINDOWEVENT_CLOSE &&
event.window.windowID == SDL_GetWindowID(main_window_)) {
exit_ = true;
} else if (event.type == REFRESH_EVENT) {
sdl_rect_.x = 0;
sdl_rect_.y = 0;
sdl_rect_.w = main_window_width_;
sdl_rect_.h = main_window_height_;
if (video_texture_)
SDL_UpdateTexture(video_texture_, NULL, dst_buffer_, 1280);
if (sdl_texture_)
SDL_UpdateTexture(sdl_texture_, NULL, dst_buffer_, 1280);
} else {
if (connection_established_) {
ProcessMouseKeyEven(event);
@@ -395,17 +381,10 @@ int Render::Run() {
ImGui::Render();
SDL_RenderSetScale(sdl_renderer_, io.DisplayFramebufferScale.x,
io.DisplayFramebufferScale.y);
// SDL_SetRenderDrawColor(sdl_renderer_, 255, 255, 255, 255);
SDL_RenderClear(sdl_renderer_);
if (video_renderer_) {
SDL_RenderCopy(video_renderer_, video_texture_, NULL, &sdl_rect_);
if (!connection_established_ || !received_frame_) {
SDL_RenderClear(video_renderer_);
SDL_SetRenderDrawColor(video_renderer_, 255, 255, 255, 255);
}
SDL_RenderPresent(video_renderer_);
if (connection_established_ && received_frame_) {
SDL_RenderCopy(sdl_renderer_, sdl_texture_, NULL, &sdl_rect_);
SDL_RenderPresent(sdl_renderer_);
}
ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData());

6
src/multiple_windows/render.h
View File

@@ -108,8 +108,10 @@ class Render {
private:
int screen_width_ = 1280;
int screen_height_ = 720;
int main_window_width_ = 1280;
int main_window_height_ = 720;
int main_window_width_ = 960;
int main_window_height_ = 540;
int main_window_width_last_ = 960;
int main_window_height_last_ = 540;
int main_window_width_before_fullscreen_ = 1280;
int main_window_height_before_fullscreen_ = 720;
int menu_window_height_ = 40;

29
src/multiple_windows/render_callback_func.cpp
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@@ -172,35 +172,6 @@ void Render::OnConnectionStatusCb(ConnectionStatus status, void *user_data) {
render->start_screen_capture_ = true;
render->start_mouse_control_ = true;
}
if (!render->video_window_created_) {
SDL_WindowFlags window_flags =
(SDL_WindowFlags)(SDL_WINDOW_ALLOW_HIGHDPI | SDL_WINDOW_RESIZABLE);
render->sdl_texture_ =
SDL_CreateTexture(render->sdl_renderer_, render->pixformat_,
SDL_TEXTUREACCESS_STREAMING, render->texture_width_,
render->texture_height_);
render->video_window_ =
SDL_CreateWindow("Video", SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED, render->main_window_width_,
render->main_window_height_, window_flags);
render->video_renderer_ = SDL_CreateRenderer(
render->video_window_, -1,
SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED);
if (render->video_renderer_ == nullptr) {
SDL_Log("Error creating SDL_Renderer!");
}
render->video_texture_ =
SDL_CreateTexture(render->video_renderer_, render->pixformat_,
SDL_TEXTUREACCESS_STREAMING, render->texture_width_,
render->texture_height_);
render->video_window_created_ = true;
}
} else if (ConnectionStatus::Disconnected == status) {
render->connection_status_str_ = "Disconnected";
} else if (ConnectionStatus::Failed == status) {

0
src/multiple_windows/sub_window.cpp
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10
src/multiple_windows/sub_window.h
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@@ -1,10 +0,0 @@
/*
* @Author: DI JUNKUN
* @Date: 2024-06-17
* Copyright (c) 2024 by DI JUNKUN, All Rights Reserved.
*/
#ifndef _SUB_WINDOW_H_
#define _SUB_WINDOW_H_
#endif