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Make compatible with the Sun's pixel format

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This commit is contained in:
John Lorentzson 2025-04-05 19:51:34 +02:00
parent a1c39be7b3
commit 98b2b4c64d
2 changed files with 19 additions and 28 deletions
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5
src/Backends/Platform/X11.cpp
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@ -27,8 +27,9 @@ static unsigned long startTime;
bool Backend_Init(void (*drag_and_drop_callback)(const char *path), void (*window_focus_callback)(bool focus)) {
// we're ignoring the hell out of focus and drag & drop
xDisplay = XOpenDisplay(NULL);
//XMatchVisualInfo(xDisplay, DefaultScreen(xDisplay), 24, DirectColor, &xvisinfo);
//xVisual = xvisinfo.visual;
XMatchVisualInfo(xDisplay, DefaultScreen(xDisplay), 24, TrueColor, &xvisinfo);
xVisual = xvisinfo.visual;
printf("Using X visual with ID 0x%lx\n", xVisual->visualid);
struct timeval time; // time.tv_usec is microseconds
gettimeofday(&time, NULL);

40
src/Backends/Rendering/Window/Software/X11.cpp
View file

@ -12,7 +12,7 @@ static Window window;
static XImage* framebufferImage;
static char* framebufferPixels;
static int framebufferPitch;
static char* xfriendlyFB;
static unsigned char* xfriendlyFB;
static GC gc;
static int screenWidth;
static int screenHeight;
@ -26,8 +26,9 @@ bool WindowBackend_Software_CreateWindow(const char *window_title, size_t screen
int screen = DefaultScreen(xDisplay);
Window rootWindow = RootWindow(xDisplay, screen);
//window = XCreateWindow(display, rootWindow, 0, 0, screen_width, screen_height, 0, 16, InputOutput, CopyFromParent, 0, NULL);
window = XCreateSimpleWindow(xDisplay, rootWindow, 0, 0, screen_width, screen_height, 1, 0, 0);
window = XCreateWindow(xDisplay, rootWindow, 0, 0, screen_width, screen_height, 0, 24, InputOutput, xVisual, 0, NULL);
//window = XCreateSimpleWindow(xDisplay, rootWindow, 0, 0, screen_width, screen_height, 1, 0, 0);
XSelectInput(xDisplay, window, ExposureMask | KeyPressMask | KeyReleaseMask);
XMapRaised(xDisplay, window);
XStoreName(xDisplay, window, window_title);
@ -45,10 +46,10 @@ bool WindowBackend_Software_CreateWindow(const char *window_title, size_t screen
// Setting up the framebuffer
framebufferPixels = (char*)malloc(screen_width * screen_height * 3);
xfriendlyFB = (char*)malloc(screen_width * screen_height * 4);
framebufferImage = XCreateImage(xDisplay, DefaultVisual(xDisplay, DefaultScreen(xDisplay)),
xfriendlyFB = (unsigned char*)malloc(screen_width * screen_height * 4);
framebufferImage = XCreateImage(xDisplay, xVisual,//DefaultVisual(xDisplay, DefaultScreen(xDisplay)),
depth, ZPixmap, 0,
xfriendlyFB, screen_width, screen_height,
(char*)xfriendlyFB, screen_width, screen_height,
32, 0);
if(framebufferImage == 0) {
return false;
@ -76,28 +77,17 @@ void WindowBackend_Software_HandleWindowResize(size_t width, size_t height) {
}
void WindowBackend_Software_Display(void) {
// Convert Cave Story's framebuffer format to the Sun's
// This is the exact reverse of how it is on modern
// computers. Yup, it's endianess.
int srci = 0;
for(int i = 0; i < screenWidth * screenHeight * 4; i++) {
for(int i = 0; i < screenWidth * screenHeight * 4; i += 4) {
int src;
switch(i % 4) {
case 0:
src = srci + 2;
break;
case 1:
src = srci + 1;
break;
case 2:
src = srci + 0;
break;
case 3:
xfriendlyFB[i + 0] = 0; // UNUSED
xfriendlyFB[i + 1] = framebufferPixels[srci + 2]; // BLUE
xfriendlyFB[i + 2] = framebufferPixels[srci + 1]; // GREEN
xfriendlyFB[i + 3] = framebufferPixels[srci + 0]; // RED
srci += 3;
}
xfriendlyFB[i] = framebufferPixels[src];
// if(i % 4 != 3) {
// xfriendlyFB[i] = framebufferPixels[srci];
// srci++;
// }
}
XPutImage(xDisplay, window, gc, framebufferImage, 0, 0, 0, 0, screenWidth, screenHeight);
//XCopyArea(xDisplay, intermediate, window, gc, 0, 0, screenWidth, screenHeight, 0, 0);
}