ikolokolnikov/handmadehero
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Day 40 complete.

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This commit is contained in:
igor
2026-04-24 16:54:48 -07:00
parent 536c2664fe
commit 8c2290b2ad
3 changed files with 94 additions and 34 deletions
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core.h
+10 -10
View File
@@ -1,6 +1,16 @@
#ifndef CORE_H_SENTRY
#define CORE_H_SENTRY
/* ---- Switches ------------------------------------------------------- */
#ifndef BUILD_DEBUG
#define BUILD_DEBUG 1
#endif
#ifndef BUILD_INTERNAL
#define BUILD_INTERNAL 1
#endif
/* ---- Environment Detection ------------------------------------------ */
/* Architecture */
@@ -91,16 +101,6 @@
#error Unknown compiler . . .
#endif
/* ---- Switches ------------------------------------------------------- */
#ifndef BUILD_DEBUG
#define BUILD_DEBUG 1
#endif
#ifndef BUILD_INTERNAL
#define BUILD_INTERNAL 1
#endif
/* ---- Types ---------------------------------------------------------- */
#ifndef TRUE
sdl_handmade.c
+76 -20
View File
@@ -40,6 +40,10 @@ SDL_GameController *ControllerHandles[MAX_CONTROLLERS];
static offscreen_buffer GlobalBackbuffer;
static B32 IsFullscreen;
static sdl_window_size WindowSize;
static sdl_window_position WindowPosition;
static S32 str_len(char *str)
{
S32 count = 0;
@@ -130,13 +134,20 @@ void DEBUGPlatformFreeFileMemory(thread_context *Thread, void *Memory)
free(Memory);
}
static sdl_window_dimension SDLGetWindowDimension(SDL_Window *Window)
static sdl_window_size SDLGetWindowSize(SDL_Window *Window)
{
sdl_window_dimension Dimension;
sdl_window_size Dimension;
SDL_GetWindowSize(Window, &Dimension.Width, &Dimension.Height);
return Dimension;
}
static sdl_window_position SDLGetWindowPosition(SDL_Window *Window)
{
sdl_window_position Position;
SDL_GetWindowPosition(Window, &Position.X, &Position.Y);
return Position;
}
static void SDLResizeTexture(offscreen_buffer *Buffer, SDL_Renderer *Renderer, int Width, int Height)
{
if(Buffer->Texture)
@@ -155,7 +166,7 @@ static void SDLResizeTexture(offscreen_buffer *Buffer, SDL_Renderer *Renderer, i
Buffer->Pitch = Width * BytesPerPixel;
}
static void SDLDisplayBufferInWindow(offscreen_buffer Buffer, SDL_Window *Window, SDL_Renderer *Renderer)
static void SDLDisplayBufferInWindow(offscreen_buffer *Buffer, SDL_Window *Window, SDL_Renderer *Renderer)
{
S32 OffsetX = 10;
S32 OffsetY = 10;
@@ -163,15 +174,20 @@ static void SDLDisplayBufferInWindow(offscreen_buffer Buffer, SDL_Window *Window
SDL_SetRenderDrawColor(Renderer, 0, 0, 0, 255);
SDL_RenderClear(Renderer);
if(SDL_UpdateTexture(Buffer.Texture, 0, Buffer.Memory, Buffer.Pitch)) {
if(SDL_UpdateTexture(Buffer->Texture, 0, Buffer->Memory, Buffer->Pitch)) {
/* TODO: Do something about this error! */
}
/* TODO: We temporarily introduce the target rectangle to avoid
* stretching the canvas. */
/* TODO: We temporarily introduce the target rectangle to avoid stretching the canvas. */
/* SDL_RenderCopy(Renderer, Buffer.Texture, 0, 0); */
sdl_window_size WindowSize = SDLGetWindowSize(Window);
if(WindowSize.Width >= Buffer->Width*2 && WindowSize.Height >= Buffer->Height*2) {
SDL_Rect dest_rect = { OffsetX, OffsetY, Buffer->Width*2, Buffer->Height*2 };
SDL_RenderCopy(Renderer, Buffer->Texture, 0, (const SDL_Rect *)(&dest_rect));
} else {
SDL_Rect dest_rect = { OffsetX, OffsetY, RESOLUTION_WIDTH, RESOLUTION_HEIGHT };
SDL_RenderCopy(Renderer, Buffer.Texture, 0, (const SDL_Rect *)(&dest_rect));
SDL_RenderCopy(Renderer, Buffer->Texture, 0, (const SDL_Rect *)(&dest_rect));
}
SDL_RenderPresent(Renderer);
}
@@ -284,11 +300,38 @@ static void HandleEvent(SDL_Event *Event)
}
}
static void SDLProcessMessages(sdl_state *SDLState,
game_controller_input *KeyboardController)
// NOTE: On XFCE4 (tested on X11), the window moves slightly lower than the set position, for whatever reason.
// Maybe, we need to redraw inside of the window atleast once before repositioning?
// This issue does not happen on MacOS.
static void SDLToggleFullscreen(SDL_Window *Window)
{
if(IsFullscreen) {
if(SDL_SetWindowFullscreen(Window, 0) == 0) {
SDL_SetWindowSize(Window, WindowSize.Width, WindowSize.Height);
SDL_SetWindowPosition(Window, WindowPosition.X, WindowPosition.Y);
IsFullscreen = FALSE;
} else {
/* TODO: This didn't work . . . SDL_GetError() */
}
} else {
WindowSize = SDLGetWindowSize(Window);
WindowPosition = SDLGetWindowPosition(Window);
if(SDL_SetWindowFullscreen(Window, SDL_WINDOW_FULLSCREEN_DESKTOP) == 0) {
IsFullscreen = TRUE;
} else {
/* TODO: This didn't work . . . SDL_GetError() */
}
}
}
static void SDLProcessMessages(sdl_state *SDLState, game_controller_input *KeyboardController)
{
SDL_Event Event;
while(SDL_PollEvent(&Event)) {
SDL_Window *Window = SDL_GetWindowFromID(Event.window.windowID);
SDL_Renderer *Renderer = SDL_GetRenderer(Window);
switch(Event.type) {
case SDL_KEYDOWN:
case SDL_KEYUP: {
@@ -338,12 +381,17 @@ static void SDLProcessMessages(sdl_state *SDLState,
* to see SDL_QUIT event occur before our
* keybind. */
B32 AltKeyWasDown = (Event.key.keysym.mod & KMOD_ALT);
if(KeyCode == SDLK_F4 && AltKeyWasDown)
GlobalRunning = FALSE;
#if BUILD_INTERNAL
if(KeyCode == SDLK_ESCAPE)
GlobalRunning = FALSE;
#endif
if((KeyCode == SDLK_RETURN) && AltKeyWasDown) {
SDLToggleFullscreen(Window);
}
}
} break;
@@ -551,14 +599,16 @@ S32 main(S32 argc, char *argv[])
/* NOTE: Floating windows are not supported oficially by Wayland
* protocol. However, SDL_WINDOW_ALWAYS_ON_TOP does work on KDE
* under Wayland. I have not tested GNOME. */
SDL_Window *Window = SDL_CreateWindow("Handmade Hero", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, RESOLUTION_WIDTH+20, RESOLUTION_HEIGHT+20, SDL_WINDOW_RESIZABLE/* | SDL_WINDOW_ALWAYS_ON_TOP*/);
/* NOTE: We create the window hidden at first. This is so that we do not get a window outline
* that shows up whilst it is waiting for the rendered to be created. We want to display
* the window once everything is ready. */
SDL_Window *Window = SDL_CreateWindow("Handmade Hero", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, RESOLUTION_WIDTH+20, RESOLUTION_HEIGHT+20, SDL_WINDOW_HIDDEN | SDL_WINDOW_RESIZABLE/* | SDL_WINDOW_ALWAYS_ON_TOP*/);
if(Window) {
SDL_DisplayMode display_mode;
SDL_GetCurrentDisplayMode(0, &display_mode);
SDL_Renderer *Renderer = SDL_CreateRenderer(Window, -1, SDL_RENDERER_PRESENTVSYNC);
SDL_SetWindowPosition(Window, (display_mode.w - RESOLUTION_WIDTH-30), (display_mode.h - RESOLUTION_HEIGHT-30));
/* NOTE: For future reference, the custom window bar should use
* SDL_SetWindowHitTest to define areas that will be used to
@@ -571,18 +621,17 @@ S32 main(S32 argc, char *argv[])
* its actual size. */
/* SDL_RenderPresent(Renderer) is enough to display the window. */
if(Renderer) {
#if BUILD_DEBUG
void *BaseAddress = (void *)TB(2);
#else
void *BaseAddress = (void *)(0);
#endif
SDLSetProgramIcon(Window);
#if 0
// TODO: Make it a global.
SDL_Cursor *PointerCursor = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
SDL_SetCursor(PointerCursor);
#if !BUILD_INTERNAL
if(SDL_ShowCursor(SDL_DISABLE) < 0) {
/* TODO: This didn't work . . . SDL_GetError() */
}
#endif
SDL_SetWindowPosition(Window, (display_mode.w - RESOLUTION_WIDTH-20), (display_mode.h - RESOLUTION_HEIGHT-20));
GlobalRunning = TRUE;
@@ -595,7 +644,6 @@ S32 main(S32 argc, char *argv[])
SoundOutput.SamplesPerSecond = 48000;
SoundOutput.BytesPerSample = sizeof(S16) * 2;
SoundOutput.SecondaryBufferSize = SoundOutput.SamplesPerSecond * SoundOutput.BytesPerSample;
SoundOutput.tSine = 0;
SoundOutput.LatencySampleCount = SoundOutput.SamplesPerSecond / 15;
SDLInitSound(SoundOutput.SamplesPerSecond, SoundOutput.SamplesPerSecond * SoundOutput.BytesPerSample / 60);
@@ -607,6 +655,12 @@ S32 main(S32 argc, char *argv[])
/* NOTE: calloc auto clears to zero */
/* SDLClearSoundBuffer(&SoundOutput); */
#if BUILD_DEBUG
void *BaseAddress = (void *)TB(2);
#else
void *BaseAddress = (void *)(0);
#endif
game_memory GameMemory;
memset(&GameMemory, 0, sizeof(GameMemory));
GameMemory.PermanentStorageSize = MB(64);
@@ -641,6 +695,8 @@ S32 main(S32 argc, char *argv[])
sdl_game_code Game = SDLLoadGameCode(SDLState.DLLPath);
SDL_ShowWindow(Window); // NOTE: Everything is ready; display the window.
while(GlobalRunning) {
NewInput->dtForFrame = TargetSecondsPerFrame;
@@ -789,7 +845,7 @@ S32 main(S32 argc, char *argv[])
U64 EndCounter = SDLGetWallClock();
SDLDisplayBufferInWindow(GlobalBackbuffer, Window, Renderer);
SDLDisplayBufferInWindow(&GlobalBackbuffer, Window, Renderer);
F64 MSPerFrame = 1000.0 * SDLGetSecondsElapsed(LastCounter, EndCounter);
F64 FPS = 1000.0 / MSPerFrame;
sdl_handmade.h
+7 -3
View File
@@ -6,10 +6,15 @@
#include "core.h"
#include "handmade.h"
typedef struct sdl_window_dimension {
typedef struct sdl_window_size {
S32 Width;
S32 Height;
} sdl_window_dimension;
} sdl_window_size;
typedef struct sdl_window_position {
S32 X;
S32 Y;
} sdl_window_position;
typedef struct offscreen_buffer {
/* Pixels are always 32-bit and have the bytes in BGRX
@@ -25,7 +30,6 @@ typedef struct sdl_sound_output {
S32 SamplesPerSecond;
S32 BytesPerSample;
S32 SecondaryBufferSize;
F32 tSine;
S32 LatencySampleCount;
void *Samples;
} sdl_sound_output;