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SDL: Implement getDisplayDensity() and setWindowIcon()

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Desour 2023-03-25 02:52:42 +01:00 committed by sfan5
parent acbc90a000
commit 49b6ccde72
2 changed files with 67 additions and 1 deletions
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62
source/Irrlicht/CIrrDeviceSDL.cpp
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@ -9,6 +9,8 @@
#include "IEventReceiver.h"
#include "IGUIElement.h"
#include "IGUIEnvironment.h"
#include "IImageLoader.h"
#include "IFileSystem.h"
#include "os.h"
#include "CTimer.h"
#include "irrString.h"
@ -243,7 +245,7 @@ CIrrDeviceSDL::CIrrDeviceSDL(const SIrrlichtCreationParameters& param)
#endif
if (SDL_Init(flags) < 0)
{
os::Printer::log("Unable to initialize SDL!", SDL_GetError());
os::Printer::log("Unable to initialize SDL", SDL_GetError(), ELL_ERROR);
Close = true;
}
else
@ -871,6 +873,29 @@ bool CIrrDeviceSDL::activateJoysticks(core::array<SJoystickInfo> & joystickInfo)
return false;
}
//! Get the display density in dots per inch.
float CIrrDeviceSDL::getDisplayDensity() const
{
if (!Window)
return 0.0f;
int window_w;
int window_h;
SDL_GetWindowSize(Window, &window_w, &window_h);
int drawable_w;
int drawable_h;
SDL_GL_GetDrawableSize(Window, &drawable_w, &drawable_h);
// assume 96 dpi
float dpi_w = (float)drawable_w / (float)window_w * 96.0f;
float dpi_h = (float)drawable_h / (float)window_h * 96.0f;
return std::max(dpi_w, dpi_h);
}
void CIrrDeviceSDL::SwapWindow()
{
SDL_GL_SwapWindow(Window);
@ -908,6 +933,41 @@ void CIrrDeviceSDL::setWindowCaption(const wchar_t* text)
}
//! Sets the window icon.
bool CIrrDeviceSDL::setWindowIcon(const video::IImage *img)
{
if (!Window)
return false;
u32 height = img->getDimension().Height;
u32 width = img->getDimension().Width;
SDL_Surface *surface = SDL_CreateRGBSurface(0, width, height, 32,
0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
if (!surface) {
os::Printer::log("Failed to create SDL suface", ELL_ERROR);
return false;
}
SDL_LockSurface(surface);
bool succ = img->copyToNoScaling(surface->pixels, width, height, video::ECF_A8R8G8B8, surface->pitch);
SDL_UnlockSurface(surface);
if (!succ) {
os::Printer::log("Could not copy icon image. Is the format not ECF_A8R8G8B8?", ELL_ERROR);
SDL_FreeSurface(surface);
return false;
}
SDL_SetWindowIcon(Window, surface);
SDL_FreeSurface(surface);
return true;
}
//! notifies the device that it should close itself
void CIrrDeviceSDL::closeDevice()
{

6
source/Irrlicht/CIrrDeviceSDL.h
View File

@ -48,6 +48,9 @@ namespace irr
//! sets the caption of the window
void setWindowCaption(const wchar_t* text) override;
//! Sets the window icon.
bool setWindowIcon(const video::IImage *img) override;
//! returns if window is active. if not, nothing need to be drawn
bool isWindowActive() const override;
@ -94,6 +97,9 @@ namespace irr
return EIDT_SDL;
}
//! Get the display density in dots per inch.
float getDisplayDensity() const override;
void SwapWindow();
//! Implementation of the linux cursor control