ref: 2cd6692a00c2af3644183b362ffc6dcaddc77981
dir: /src/Draw.cpp/
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#ifdef WINDOWS
#define RECT WINRECT
#define FindResource WinFindResource // All these damn name collisions...
#define DrawText WinDrawText
#define LoadFont WinLoadFont
#include <windows.h>
#undef LoadFont
#undef DrawText
#undef FindResource
#undef RECT
#endif
#include "SDL.h"
#include "WindowsWrapper.h"
#include "CommonDefines.h"
#include "Draw.h"
#include "Font.h"
#include "Resource.h"
#include "Tags.h"
#include "Types.h"
struct SURFACE
{
bool in_use;
bool needs_updating;
SDL_Surface *surface;
SDL_Texture *texture;
};
SDL_Window *gWindow;
SDL_Renderer *gRenderer;
RECT grcGame = {0, 0, WINDOW_WIDTH, WINDOW_HEIGHT};
RECT grcFull = {0, 0, WINDOW_WIDTH, WINDOW_HEIGHT};
int magnification;
bool fullscreen;
SURFACE surf[SURFACE_ID_MAX];
FontObject *gFont;
#define FRAMERATE 20
BOOL Flip_SystemTask()
{
while (true)
{
if (!SystemTask())
return FALSE;
// Framerate limiter
static Uint32 timePrev;
const Uint32 timeNow = SDL_GetTicks();
if (timeNow >= timePrev + FRAMERATE)
{
if (timeNow >= timePrev + 100)
timePrev = timeNow; // If the timer is freakishly out of sync, panic and reset it, instead of spamming frames for who-knows how long
else
timePrev += FRAMERATE;
break;
}
SDL_Delay(1);
}
SDL_RenderPresent(gRenderer);
return TRUE;
}
BOOL StartDirectDraw(int lMagnification, int lColourDepth)
{
(void)lColourDepth;
// Initialize rendering
SDL_InitSubSystem(SDL_INIT_VIDEO);
// Create renderer
gRenderer = SDL_CreateRenderer(gWindow, -1, SDL_RENDERER_ACCELERATED);
if (gRenderer != NULL)
{
// Print the name of the renderer SDL2 is using
SDL_RendererInfo info;
SDL_GetRendererInfo(gRenderer, &info);
printf("Renderer: %s\n", info.name);
switch (lMagnification)
{
case 0:
magnification = 1;
fullscreen = false;
break;
case 1:
magnification = 2;
fullscreen = false;
break;
case 2:
magnification = 2;
fullscreen = true;
SDL_SetWindowFullscreen(gWindow, SDL_WINDOW_FULLSCREEN);
break;
}
}
return TRUE;
}
void EndDirectDraw()
{
// Quit sub-system
SDL_QuitSubSystem(SDL_INIT_VIDEO);
// Release all surfaces
for (int i = 0; i < SURFACE_ID_MAX; i++)
ReleaseSurface(i);
}
static bool IsEnableBitmap(SDL_RWops *fp)
{
char str[16];
const char *extra_text = "(C)Pixel";
const size_t len = strlen(extra_text);
fp->seek(fp, -(Sint64)len, RW_SEEK_END);
fp->read(fp, str, 1, len);
fp->seek(fp, 0, RW_SEEK_SET);
return memcmp(str, extra_text, len) == 0;
}
void ReleaseSurface(int s)
{
// Release the surface we want to release
if (surf[s].in_use)
{
SDL_DestroyTexture(surf[s].texture);
SDL_FreeSurface(surf[s].surface);
surf[s].in_use = false;
}
}
BOOL MakeSurface_Generic(int bxsize, int bysize, Surface_Ids surf_no)
{
BOOL success = FALSE;
#ifdef FIX_BUGS
if (surf_no >= SURFACE_ID_MAX)
#else
if (surf_no > SURFACE_ID_MAX) // OOPS (should be '>=')
#endif
{
printf("Tried to create drawable surface at invalid slot (%d - maximum is %d)\n", surf_no, SURFACE_ID_MAX);
}
else
{
if (surf[surf_no].in_use == true)
{
printf("Tried to create drawable surface at occupied slot (%d)\n", surf_no);
}
else
{
// Create surface
surf[surf_no].surface = SDL_CreateRGBSurfaceWithFormat(0, bxsize * magnification, bysize * magnification, 0, SDL_PIXELFORMAT_RGB24);
SDL_SetSurfaceBlendMode(surf[surf_no].surface, SDL_BLENDMODE_NONE);
if (surf[surf_no].surface == NULL)
{
printf("Failed to create drawable surface %d (SDL_CreateRGBSurfaceWithFormat)\nSDL Error: %s\n", surf_no, SDL_GetError());
}
else
{
surf[surf_no].texture = SDL_CreateTexture(gRenderer, SDL_PIXELFORMAT_RGBA32, SDL_TEXTUREACCESS_STREAMING, bxsize * magnification, bysize * magnification);
if (surf[surf_no].texture == NULL)
{
printf("Failed to create drawable surface %d (SDL_CreateTexture)\nSDL Error: %s\n", surf_no, SDL_GetError());
SDL_FreeSurface(surf[surf_no].surface);
}
else
{
surf[surf_no].in_use = true;
success = TRUE;
}
}
}
}
return success;
}
static void FlushSurface(Surface_Ids surf_no)
{
unsigned char *raw_pixels;
int pitch;
SDL_LockTexture(surf[surf_no].texture, NULL, (void**)&raw_pixels, &pitch);
for (int h = 0; h < surf[surf_no].surface->h; ++h)
{
for (int w = 0; w < surf[surf_no].surface->w; ++w)
{
unsigned char *src_pixel = (unsigned char*)surf[surf_no].surface->pixels + (h * surf[surf_no].surface->pitch) + (w * 3);
unsigned char *dst_pixel = (unsigned char*)raw_pixels + (h * pitch) + (w * 4);
dst_pixel[0] = src_pixel[0];
dst_pixel[1] = src_pixel[1];
dst_pixel[2] = src_pixel[2];
if (src_pixel[0] || src_pixel[1] || src_pixel[2]) // Colour-key
dst_pixel[3] = 0xFF;
else
dst_pixel[3] = 0;
}
}
SDL_UnlockTexture(surf[surf_no].texture);
}
static bool LoadBitmap(SDL_RWops *fp, Surface_Ids surf_no, bool create_surface)
{
bool success = false;
if (surf_no >= SURFACE_ID_MAX)
{
printf("Tried to load bitmap at invalid slot (%d - maximum is %d\n", surf_no, SURFACE_ID_MAX);
}
else
{
if (create_surface && surf[surf_no].in_use)
{
printf("Tried to create drawable surface at occupied slot (%d)\n", surf_no);
}
else
{
SDL_Surface *surface = SDL_LoadBMP_RW(fp, 0);
if (surface == NULL)
{
printf("Couldn't load bitmap for surface id %d\nSDL Error: %s\n", surf_no, SDL_GetError());
}
else
{
if (create_surface == false || MakeSurface_Generic(surface->w, surface->h, surf_no))
{
if (magnification == 1)
{
SDL_Rect dst_rect = {0, 0, surface->w, surface->h};
SDL_BlitSurface(surface, NULL, surf[surf_no].surface, &dst_rect);
surf[surf_no].needs_updating = true;
printf(" ^ Successfully loaded\n");
success = true;
}
else
{
SDL_Surface *converted_surface = SDL_ConvertSurface(surface, surf[surf_no].surface->format, 0);
if (converted_surface == NULL)
{
printf("Couldn't convert bitmap to surface format (surface id %d)\nSDL Error: %s\n", surf_no, SDL_GetError());
}
else
{
// Upscale the bitmap to the game's native resolution (SDL_BlitScaled is buggy, so we have to do it on our own)
for (int h = 0; h < converted_surface->h; ++h)
{
const unsigned char *src_row = (unsigned char*)converted_surface->pixels + h * converted_surface->pitch;
unsigned char *dst_row = (unsigned char*)surf[surf_no].surface->pixels + h * surf[surf_no].surface->pitch * magnification;
const unsigned char *src_ptr = src_row;
unsigned char *dst_ptr = dst_row;
for (int w = 0; w < converted_surface->w; ++w)
{
for (int i = 0; i < magnification; ++i)
{
*dst_ptr++ = src_ptr[0];
*dst_ptr++ = src_ptr[1];
*dst_ptr++ = src_ptr[2];
}
src_ptr += 3;
}
for (int i = 1; i < magnification; ++i)
memcpy(dst_row + i * surf[surf_no].surface->pitch, dst_row, surf[surf_no].surface->w * 3);
}
SDL_FreeSurface(converted_surface);
surf[surf_no].needs_updating = true;
printf(" ^ Successfully loaded\n");
success = true;
}
}
}
SDL_FreeSurface(surface);
}
}
}
fp->close(fp);
return success;
}
static BOOL LoadBitmap_File(const char *name, Surface_Ids surf_no, bool create_surface)
{
char path[PATH_LENGTH];
SDL_RWops *fp;
// Attempt to load PBM
sprintf(path, "%s/%s.pbm", gDataPath, name);
fp = SDL_RWFromFile(path, "rb");
if (fp)
{
if (!IsEnableBitmap(fp))
{
printf("Tried to load bitmap to surface %d, but it's missing the '(C)Pixel' string\n", surf_no);
fp->close(fp);
}
else
{
printf("Loading surface (as .pbm) from %s for surface id %d\n", path, surf_no);
if (LoadBitmap(fp, surf_no, create_surface))
return TRUE;
}
}
// Attempt to load BMP
sprintf(path, "%s/%s.bmp", gDataPath, name);
fp = SDL_RWFromFile(path, "rb");
if (fp)
{
printf("Loading surface (as .bmp) from %s for surface id %d\n", path, surf_no);
if (LoadBitmap(fp, surf_no, create_surface))
return TRUE;
}
printf("Failed to open file %s\n", name);
return FALSE;
}
static BOOL LoadBitmap_Resource(const char *res, Surface_Ids surf_no, bool create_surface)
{
size_t size;
const unsigned char *data = FindResource(res, "BITMAP", &size);
if (data)
{
// For some dumbass reason, SDL2 measures size with a signed int.
// Has anyone ever told the devs that an int can be as little as 16 bits long? Real portable.
// But hey, if I ever need to create an RWops from an array that's -32768 bytes long, they've got me covered!
SDL_RWops *fp = SDL_RWFromConstMem(data, size);
printf("Loading surface from resource %s for surface id %d\n", res, surf_no);
if (LoadBitmap(fp, surf_no, create_surface))
return TRUE;
}
printf("Failed to open resource %s\n", res);
return FALSE;
}
BOOL MakeSurface_File(const char *name, Surface_Ids surf_no)
{
return LoadBitmap_File(name, surf_no, true);
}
BOOL MakeSurface_Resource(const char *res, Surface_Ids surf_no)
{
return LoadBitmap_Resource(res, surf_no, true);
}
BOOL ReloadBitmap_File(const char *name, Surface_Ids surf_no)
{
return LoadBitmap_File(name, surf_no, false);
}
BOOL ReloadBitmap_Resource(const char *res, Surface_Ids surf_no)
{
return LoadBitmap_Resource(res, surf_no, false);
}
static SDL_Rect RectToSDLRect(RECT *rect)
{
SDL_Rect SDLRect = {rect->left, rect->top, rect->right - rect->left, rect->bottom - rect->top};
if (SDLRect.w < 0)
SDLRect.w = 0;
if (SDLRect.h < 0)
SDLRect.h = 0;
return SDLRect;
}
static SDL_Rect RectToSDLRectScaled(RECT *rect)
{
SDL_Rect SDLRect = RectToSDLRect(rect);
SDLRect.x *= magnification;
SDLRect.y *= magnification;
SDLRect.w *= magnification;
SDLRect.h *= magnification;
return SDLRect;
}
void BackupSurface(Surface_Ids surf_no, RECT *rect)
{
// Get renderer size
int w, h;
SDL_GetRendererOutputSize(gRenderer, &w, &h);
// Get texture of what's currently rendered on screen
SDL_Surface *surface = SDL_CreateRGBSurfaceWithFormat(0, w, h, 0, SDL_PIXELFORMAT_RGB24);
SDL_SetSurfaceBlendMode(surface, SDL_BLENDMODE_NONE);
SDL_RenderReadPixels(gRenderer, NULL, SDL_PIXELFORMAT_RGB24, surface->pixels, surface->pitch);
// Get rects
SDL_Rect frameRect = RectToSDLRectScaled(rect);
SDL_BlitSurface(surface, &frameRect, surf[surf_no].surface, &frameRect);
surf[surf_no].needs_updating = true;
// Free surface
SDL_FreeSurface(surface);
}
static void DrawBitmap(RECT *rcView, int x, int y, RECT *rect, Surface_Ids surf_no, bool transparent)
{
if (surf[surf_no].needs_updating)
{
FlushSurface(surf_no);
surf[surf_no].needs_updating = false;
}
// Get SDL_Rects
SDL_Rect clipRect = RectToSDLRectScaled(rcView);
SDL_Rect frameRect = RectToSDLRectScaled(rect);
// Get destination rect
SDL_Rect destRect = {x * magnification, y * magnification, frameRect.w, frameRect.h};
// Set cliprect
SDL_RenderSetClipRect(gRenderer, &clipRect);
SDL_SetTextureBlendMode(surf[surf_no].texture, transparent ? SDL_BLENDMODE_BLEND : SDL_BLENDMODE_NONE);
// Draw to screen
if (SDL_RenderCopy(gRenderer, surf[surf_no].texture, &frameRect, &destRect) < 0)
printf("Failed to draw texture %d\nSDL Error: %s\n", surf_no, SDL_GetError());
// Undo cliprect
SDL_RenderSetClipRect(gRenderer, NULL);
}
void PutBitmap3(RECT *rcView, int x, int y, RECT *rect, Surface_Ids surf_no) // Transparency
{
DrawBitmap(rcView, x, y, rect, surf_no, true);
}
void PutBitmap4(RECT *rcView, int x, int y, RECT *rect, Surface_Ids surf_no) // No Transparency
{
DrawBitmap(rcView, x, y, rect, surf_no, false);
}
void Surface2Surface(int x, int y, RECT *rect, int to, int from)
{
// Get rects
SDL_Rect rcSet = {x * magnification, y * magnification, (rect->right - rect->left) * magnification, (rect->bottom - rect->top) * magnification};
SDL_Rect frameRect = RectToSDLRectScaled(rect);
SDL_BlitSurface(surf[from].surface, &frameRect, surf[to].surface, &rcSet);
surf[to].needs_updating = true;
}
unsigned long GetCortBoxColor(unsigned long col)
{
// This comes in BGR, and goes out BGR
return col;
}
void CortBox(RECT *rect, unsigned long col)
{
// Get rect
SDL_Rect destRect = RectToSDLRectScaled(rect);
// Set colour and draw
const unsigned char col_red = (unsigned char)(col & 0xFF);
const unsigned char col_green = (unsigned char)((col >> 8) & 0xFF);
const unsigned char col_blue = (unsigned char)((col >> 16) & 0xFF);
SDL_SetRenderDrawColor(gRenderer, col_red, col_green, col_blue, 0xFF);
SDL_RenderFillRect(gRenderer, &destRect);
}
void CortBox2(RECT *rect, unsigned long col, Surface_Ids surf_no)
{
// Get rect
SDL_Rect destRect = RectToSDLRectScaled(rect);
// Set colour and draw
const unsigned char col_red = (unsigned char)(col & 0xFF);
const unsigned char col_green = (unsigned char)((col >> 8) & 0xFF);
const unsigned char col_blue = (unsigned char)((col >> 16) & 0xFF);
SDL_FillRect(surf[surf_no].surface, &destRect, SDL_MapRGB(surf[surf_no].surface->format, col_red, col_green, col_blue));
surf[surf_no].needs_updating = true;
}
#ifdef WINDOWS
static unsigned char* GetFontFromWindows(size_t *data_size, const char *font_name, unsigned int fontWidth, unsigned int fontHeight)
{
unsigned char* buffer = NULL;
#ifdef JAPANESE
const DWORD charset = SHIFTJIS_CHARSET;
#else
const DWORD charset = DEFAULT_CHARSET;
#endif
HFONT hfont = CreateFontA(fontHeight, fontWidth, 0, 0, FW_NORMAL, FALSE, FALSE, FALSE, charset, OUT_TT_PRECIS, CLIP_DEFAULT_PRECIS, DEFAULT_QUALITY, FIXED_PITCH | FF_DONTCARE, font_name);
if (hfont != NULL)
{
HDC hdc = CreateCompatibleDC(NULL);
if (hdc != NULL)
{
SelectObject(hdc, hfont);
const DWORD size = GetFontData(hdc, 0, 0, NULL, 0);
if (size != GDI_ERROR)
{
buffer = (unsigned char*)malloc(size);
if (data_size != NULL)
*data_size = size;
if (GetFontData(hdc, 0, 0, buffer, size) != size)
{
free(buffer);
buffer = NULL;
}
}
DeleteDC(hdc);
}
}
return buffer;
}
#endif
void InitTextObject(const char *font_name)
{
// Get font size
unsigned int fontWidth, fontHeight;
// The original did this, but Windows would downscale it to 5/10 anyway.
/* if (magnification == 1)
{
fontWidth = 6;
fontHeight = 12;
}
else
{
fontWidth = 5 * magnification;
fontHeight = 10 * magnification;
}*/
fontWidth = 5 * magnification;
fontHeight = 10 * magnification;
size_t data_size;
#ifdef WINDOWS
// Actually use the font Config.dat specifies
unsigned char *data;
data = GetFontFromWindows(&data_size, font_name, fontWidth, fontHeight);
if (data)
{
gFont = LoadFontFromData(data, data_size, fontWidth, fontHeight);
free(data);
}
if (gFont)
return;
#ifndef JAPANESE
// Fall back on a default font
data = GetFontFromWindows(&data_size, "Courier New", fontWidth, fontHeight);
if (data)
{
gFont = LoadFontFromData(data, data_size, fontWidth, fontHeight);
free(data);
}
if (gFont)
return;
#endif
#endif
// Fall back on the built-in font
(void)font_name;
const unsigned char *res_data = FindResource("DEFAULT_FONT", "FONT", &data_size);
if (res_data != NULL)
gFont = LoadFontFromData(res_data, data_size, fontWidth, fontHeight);
}
void PutText(int x, int y, const char *text, unsigned long color)
{
int surface_width, surface_height;
SDL_GetRendererOutputSize(gRenderer, &surface_width, &surface_height);
SDL_Surface *surface = SDL_CreateRGBSurfaceWithFormat(0, surface_width, surface_height, 0, SDL_PIXELFORMAT_RGB24);
SDL_RenderReadPixels(gRenderer, NULL, SDL_PIXELFORMAT_RGB24, surface->pixels, surface->pitch);
DrawText(gFont, (unsigned char*)surface->pixels, surface->pitch, surface->w, surface->h, x * magnification, y * magnification, color, text, strlen(text));
SDL_Texture *screen_texture = SDL_CreateTextureFromSurface(gRenderer, surface);
SDL_FreeSurface(surface);
SDL_RenderCopy(gRenderer, screen_texture, NULL, NULL);
SDL_DestroyTexture(screen_texture);
}
void PutText2(int x, int y, const char *text, unsigned long color, Surface_Ids surf_no)
{
DrawText(gFont, (unsigned char*)surf[surf_no].surface->pixels, surf[surf_no].surface->pitch, surf[surf_no].surface->w, surf[surf_no].surface->h, x * magnification, y * magnification, color, text, strlen(text));
surf[surf_no].needs_updating = true;
}
void EndTextObject()
{
// Destroy font
UnloadFont(gFont);
gFont = NULL;
}