Browse Source

writing PRIZM video driver

master
Sylvain PILLOT 3 months ago
parent
commit
57a084f989
  1. 81
      Makefile.prizm
  2. 13
      TODO.txt
  3. 24
      cSDL1_2_15.cbp
  4. 68
      cSDL1_2_15.layout
  5. 7
      include/SDL_config.h
  6. 37
      include/SDL_config_prizm.h
  7. 118
      include/SDL_video.h
  8. BIN
      libSDL_prizm.a
  9. BIN
      src/audio/SDL_audiodev.o
  10. BIN
      src/audio/SDL_mixer.o
  11. BIN
      src/audio/SDL_mixer_MMX.o
  12. BIN
      src/audio/SDL_mixer_MMX_VC.o
  13. BIN
      src/audio/SDL_mixer_m68k.o
  14. BIN
      src/audio/SDL_wave.o
  15. BIN
      src/audio/dummy/SDL_dummyaudio.o
  16. BIN
      src/cdrom/SDL_cdrom.o
  17. BIN
      src/cdrom/dummy/SDL_syscdrom.o
  18. BIN
      src/joystick/dummy/SDL_sysjoystick.o
  19. BIN
      src/loadso/dummy/SDL_sysloadso.o
  20. BIN
      src/timer/dummy/SDL_systimer.o
  21. 107
      src/timer/prizm/SDL_systimer.c
  22. 9
      src/video/SDL_sysvideo.h
  23. BIN
      src/video/dummy/SDL_nullevents.o
  24. BIN
      src/video/dummy/SDL_nullmouse.o
  25. BIN
      src/video/dummy/SDL_nullvideo.o
  26. 100
      src/video/prizm/SDL_prizmevents.c
  27. 102
      src/video/prizm/SDL_prizmevents_c.h
  28. 133
      src/video/prizm/SDL_prizmfonts.c
  29. 1309
      src/video/prizm/SDL_prizmfonts.h
  30. 38
      src/video/prizm/SDL_prizmnti.c
  31. 15
      src/video/prizm/SDL_prizmnti.h
  32. 17
      src/video/prizm/SDL_prizmutils.c
  33. 257
      src/video/prizm/SDL_prizmvideo.c
  34. 52
      src/video/prizm/SDL_prizmvideo.h

81
Makefile.prizm

@ -9,35 +9,68 @@ CC = sh-elf-gcc
CONFIG_H = include/SDL_config.h
TARGET = libSDL_prizm.a
SOURCES = \
src/*.c \
src/audio/*.c \
src/cdrom/*.c \
src/cpuinfo/*.c \
src/events/*.c \
src/file/*.c \
src/joystick/*.c \
src/stdlib/*.c \
src/thread/*.c \
src/timer/*.c \
src/video/*.c \
src/audio/dummy/*.c \
src/video/dummy/*.c \
src/joystick/dummy/*.c \
src/cdrom/dummy/*.c \
src/thread/generic/*.c \
src/timer/dummy/*.c \
src/loadso/dummy/*.c \
src/SDL.c \
src/SDL_error.c \
src/SDL_fatal.c \
src/audio/SDL_audio.c \
src/audio/SDL_audiocvt.c \
src/cpuinfo/SDL_cpuinfo.c \
src/events/SDL_active.c \
src/events/SDL_events.c \
src/events/SDL_expose.c \
src/events/SDL_keyboard.c \
src/events/SDL_mouse.c \
src/events/SDL_quit.c \
src/events/SDL_resize.c \
src/file/SDL_rwops.c \
src/joystick/SDL_joystick.c \
src/stdlib/SDL_getenv.c \
src/stdlib/SDL_iconv.c \
src/stdlib/SDL_malloc.c \
src/stdlib/SDL_qsort.c \
src/stdlib/SDL_stdlib.c \
src/stdlib/SDL_string.c \
src/thread/SDL_thread.c \
src/thread/generic/SDL_syscond.c \
src/thread/generic/SDL_sysmutex.c \
src/thread/generic/SDL_syssem.c \
src/thread/generic/SDL_systhread.c \
src/timer/SDL_timer.c \
src/timer/prizm/SDL_systimer.c \
src/video/SDL_blit.c \
src/video/SDL_blit_0.c \
src/video/SDL_blit_1.c \
src/video/SDL_blit_A.c \
src/video/SDL_blit_N.c \
src/video/SDL_bmp.c \
src/video/SDL_cursor.c \
src/video/SDL_gamma.c \
src/video/SDL_pixels.c \
src/video/SDL_RLEaccel.c \
src/video/SDL_stretch.c \
src/video/SDL_surface.c \
src/video/SDL_video.c \
src/video/SDL_yuv.c \
src/video/SDL_yuv_mmx.c \
src/video/SDL_yuv_sw.c \
src/video/prizm/SDL_prizmevents.c \
src/video/prizm/SDL_prizmfonts.c \
src/video/prizm/SDL_prizmnti.c \
src/video/prizm/SDL_prizmutils.c \
src/video/prizm/SDL_prizmvideo.c
OBJECTS = $(shell echo $(SOURCES) | sed -e 's,\.c,\.o,g')
OBJECTS = $(SOURCES:.c=.o)
all: $(TARGET)
$(TARGET): $(CONFIG_H) $(OBJECTS)
$(AR) crv $@ $^
$(TARGET): $(OBJECTS)
#cp $(CONFIG_H).default $(CONFIG_H)
$(AR) cr $@ $^
$(RANLIB) $@
#$(STRIP) --strip-unneeded $@
$(CONFIG_H):
cp $(CONFIG_H).default $(CONFIG_H)
.c.o:
$(CC) $(INCLUDE) $(CFLAGS) -c $< -o $@
clean:
rm -f $(TARGET) $(OBJECTS)
rm -f $(OBJECTS) $(TARGET)

13
TODO.txt

@ -0,0 +1,13 @@
timers : src/timer/prizm/SDL_systimer.c
implement :
void SDL_StartTicks(void);
Uint32 SDL_GetTicks (void);
void SDL_Delay (Uint32 ms)
check if :
#include "SDL_thread.h" is working or not
video :

24
cSDL1_2_15.cbp

@ -15,6 +15,8 @@
</Build>
<Unit filename="Makefile.prizm" />
<Unit filename="README.md" />
<Unit filename="TODO.txt" />
<Unit filename="cSDL1_2_15.layout" />
<Unit filename="include/SDL.h" />
<Unit filename="include/SDL_active.h" />
<Unit filename="include/SDL_audio.h" />
@ -193,6 +195,9 @@
<Unit filename="src/timer/dummy/SDL_systimer.c">
<Option compilerVar="CC" />
</Unit>
<Unit filename="src/timer/prizm/SDL_systimer.c">
<Option compilerVar="CC" />
</Unit>
<Unit filename="src/video/SDL_RLEaccel.c">
<Option compilerVar="CC" />
</Unit>
@ -270,6 +275,25 @@
<Unit filename="src/video/e_sqrt.h" />
<Unit filename="src/video/math_private.h" />
<Unit filename="src/video/mmx.h" />
<Unit filename="src/video/prizm/SDL_prizmevents.c">
<Option compilerVar="CC" />
</Unit>
<Unit filename="src/video/prizm/SDL_prizmevents_c.h" />
<Unit filename="src/video/prizm/SDL_prizmfonts.c">
<Option compilerVar="CC" />
</Unit>
<Unit filename="src/video/prizm/SDL_prizmfonts.h" />
<Unit filename="src/video/prizm/SDL_prizmnti.c">
<Option compilerVar="CC" />
</Unit>
<Unit filename="src/video/prizm/SDL_prizmnti.h" />
<Unit filename="src/video/prizm/SDL_prizmutils.c">
<Option compilerVar="CC" />
</Unit>
<Unit filename="src/video/prizm/SDL_prizmvideo.c">
<Option compilerVar="CC" />
</Unit>
<Unit filename="src/video/prizm/SDL_prizmvideo.h" />
<Extensions>
<lib_finder disable_auto="1" />
</Extensions>

68
cSDL1_2_15.layout

@ -2,19 +2,77 @@
<CodeBlocks_layout_file>
<FileVersion major="1" minor="0" />
<ActiveTarget name="Release" />
<File name="include/SDL_config.h" open="1" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<File name="src/video/prizm/SDL_prizmevents.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="1755" topLine="40" />
</Cursor>
</File>
<File name="src/video/prizm/SDL_prizmvideo.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="0" topLine="11" />
</Cursor>
</File>
<File name="src/video/prizm/SDL_prizmfonts.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="159" topLine="0" />
</Cursor>
</File>
<File name="src/video/prizm/SDL_prizmutils.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="307" topLine="0" />
</Cursor>
</File>
<File name="Makefile.prizm" open="0" top="0" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="1727" topLine="47" />
</Cursor>
</File>
<File name="src/video/prizm/SDL_prizmvideo.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="0" topLine="72" />
</Cursor>
</File>
<File name="include/SDL_config_prizm.h" open="0" top="0" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="2746" topLine="12" />
</Cursor>
</File>
<File name="src/video/SDL_sysvideo.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="12039" topLine="392" />
</Cursor>
</File>
<File name="include/SDL_config.h" open="0" top="0" tabpos="2" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="1297" topLine="15" />
</Cursor>
</File>
<File name="Makefile.prizm" open="1" top="1" tabpos="3" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<File name="src/video/prizm/SDL_prizmnti.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="762" topLine="3" />
</Cursor>
<Folding>
<Collapse line="5" />
</Folding>
</File>
<File name="src/video/prizm/SDL_prizmfonts.c" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="567" topLine="0" />
</Cursor>
</File>
<File name="src/video/prizm/SDL_prizmevents_c.h" open="0" top="0" tabpos="4" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="2002" topLine="69" />
</Cursor>
</File>
<File name="src/video/SDL_blit.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="69" topLine="0" />
<Cursor1 position="1552" topLine="468" />
</Cursor>
</File>
<File name="include/SDL_config_prizm.h" open="1" top="0" tabpos="1" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<File name="include/SDL_video.h" open="0" top="0" tabpos="0" split="0" active="1" splitpos="0" zoom_1="0" zoom_2="0">
<Cursor>
<Cursor1 position="1675" topLine="48" />
<Cursor1 position="8312" topLine="258" />
</Cursor>
</File>
</CodeBlocks_layout_file>

7
include/SDL_config.h

@ -23,8 +23,12 @@
#ifndef _SDL_config_h
#define _SDL_config_h
#define FXCG50 1
#include "SDL_platform.h"
/* Add any platform that doesn't build using the configure system */
#if defined(__DREAMCAST__)
#include "SDL_config_dreamcast.h"
@ -44,8 +48,7 @@
#include "SDL_config_prizm.h"
#else
//#include "SDL_config_minimal.h"
#include "SDL_config_prizm.h"
#include "SDL_config_minimal.h"
#endif /* platform config */
#endif /* _SDL_config_h */

37
include/SDL_config_prizm.h

@ -29,6 +29,23 @@
#include <gint/gint.h>
#define PRZ_DEBUG_BUILD 1
//#define DEBUG_BUILD 1
//#define DEBUG_VIDEO 1
//#define DEBUG_ERROR 1
#define PRZ_WARNING(s) fprintf(stderr, "[nSDL] Warning: %s\n", s)
#if PRZ_DEBUG_BUILD
#define PRZ_DEBUG(fmt, args...) \
fprintf(stderr, "[nSDL] %s(): " fmt "\n", __FUNCTION__, ## args)
#else
#define PRZ_DEBUG(fmt, args...) (void)0
#endif
#define SDL_HAS_64BIT_TYPE 1
/* Endianness */
@ -80,4 +97,24 @@
#define SDL_TIMER_DUMMY 1
/* Enable various timer systems */
#define SDL_TIMER_PRIZM 1
/* Enable various video drivers */
#define SDL_VIDEO_DRIVER_PRIZM 1
/* Enable assembly routines */
#define SDL_ASSEMBLY_ROUTINES 1
/* Fonts; needs to match nsp_font_charmaps in SDL_tinspirefonts.c */
enum {
NSDL_FONT_THIN = 0,
NSDL_FONT_SPACE,
NSDL_FONT_VGA,
NSDL_FONT_FANTASY,
NSDL_FONT_TINYTYPE,
NSP_NUMFONTS
};
#endif /* _SDL_config_prizm_h */

118
include/SDL_video.h

@ -253,6 +253,62 @@ typedef enum {
#define SDL_PHYSPAL 0x02
/*@}*/
/* Public Casio PRIZM-specific stuff */
#ifdef __CASIOPRIZM__
#define PRZ_FONT_NUMCHARS 256
#define PRZ_FONT_WIDTH 8
#define PRZ_FONT_HEIGHT 8
typedef struct nSDL_Font {
SDL_Surface *chars[PRZ_FONT_NUMCHARS];
Uint8 char_width[PRZ_FONT_NUMCHARS];
int hspacing, vspacing;
SDL_bool monospaced;
} nSDL_Font;
nSDL_Font *nSDL_LoadFont(int font_index, Uint8 r, Uint8 g, Uint8 b);
void nSDL_SetFontSpacing(nSDL_Font *font, int hspacing, int vspacing);
void nSDL_EnableFontMonospaced(nSDL_Font *font, SDL_bool toggle);
void nSDL_FreeFont(nSDL_Font *font);
int nSDL_DrawString(SDL_Surface *surface, nSDL_Font *font,
int x, int y, const char *format, ...);
int nSDL_GetStringWidth(nSDL_Font *font, const char *s);
int nSDL_GetStringHeight(nSDL_Font *font, const char *s);
SDL_Surface *nSDL_LoadImage(Uint16 *data);
int nSDL_EnableRelativePaths(char **argv);
#define PRZ_PIXEL_ADDR(origin, x, y, pitch, bpp) ((Uint8 *)origin + ((x) * (bpp)) + ((y) * (pitch)))
#define PXL(bpp) PRZ_PIXEL_ADDR(surface->pixels, x, y, surface->pitch, bpp)
static __inline__ __attribute__((always_inline))
Uint32 nSDL_GetPixel(SDL_Surface *surface, int x, int y)
{
switch ( surface->format->BytesPerPixel ) {
case 2: return(*(Uint16 *)PXL(2));
case 1: return(*PXL(1));
case 4: return(*(Uint32 *)PXL(4));
case 3: SDL_Unsupported();
default: return(0);
}
}
static __inline__ __attribute__((always_inline))
void nSDL_SetPixel(SDL_Surface *surface, int x, int y, Uint32 color)
{
switch ( surface->format->BytesPerPixel ) {
case 2: *(Uint16 *)PXL(2) = (Uint16)color; return;
case 1: *PXL(1) = (Uint8)color; return;
case 4: *(Uint32 *)PXL(4) = (Uint32)color; return;
case 3: SDL_Unsupported();
default: return;
}
}
#endif
/* Function prototypes */
/**
@ -314,11 +370,11 @@ extern DECLSPEC int SDLCALL SDL_VideoModeOK(int width, int height, int bpp, Uint
/**
* Return a pointer to an array of available screen dimensions for the
* given format and video flags, sorted largest to smallest. Returns
* NULL if there are no dimensions available for a particular format,
* given format and video flags, sorted largest to smallest. Returns
* NULL if there are no dimensions available for a particular format,
* or (SDL_Rect **)-1 if any dimension is okay for the given format.
*
* If 'format' is NULL, the mode list will be for the format given
* If 'format' is NULL, the mode list will be for the format given
* by SDL_GetVideoInfo()->vfmt
*/
extern DECLSPEC SDL_Rect ** SDLCALL SDL_ListModes(SDL_PixelFormat *format, Uint32 flags);
@ -347,21 +403,21 @@ extern DECLSPEC SDL_Rect ** SDLCALL SDL_ListModes(SDL_PixelFormat *format, Uint3
* Otherwise, in 8-bit mode, SDL_SetColors() may not be able to set all
* of the colors exactly the way they are requested, and you should look
* at the video surface structure to determine the actual palette.
* If SDL cannot guarantee that the colors you request can be set,
* If SDL cannot guarantee that the colors you request can be set,
* i.e. if the colormap is shared, then the video surface may be created
* under emulation in system memory, overriding the SDL_HWSURFACE flag.
*
* If SDL_FULLSCREEN is set in 'flags', the SDL library will try to set
* a fullscreen video mode. The default is to create a windowed mode
* if the current graphics system has a window manager.
* If the SDL library is able to set a fullscreen video mode, this flag
* If the SDL library is able to set a fullscreen video mode, this flag
* will be set in the surface that is returned.
*
* If SDL_DOUBLEBUF is set in 'flags', the SDL library will try to set up
* two surfaces in video memory and swap between them when you call
* two surfaces in video memory and swap between them when you call
* SDL_Flip(). This is usually slower than the normal single-buffering
* scheme, but prevents "tearing" artifacts caused by modifying video
* memory while the monitor is refreshing. It should only be used by
* scheme, but prevents "tearing" artifacts caused by modifying video
* memory while the monitor is refreshing. It should only be used by
* applications that redraw the entire screen on every update.
*
* If SDL_RESIZABLE is set in 'flags', the SDL library will allow the
@ -416,7 +472,7 @@ extern DECLSPEC int SDLCALL SDL_Flip(SDL_Surface *screen);
/**
* Set the gamma correction for each of the color channels.
* The gamma values range (approximately) between 0.1 and 10.0
*
*
* If this function isn't supported directly by the hardware, it will
* be emulated using gamma ramps, if available. If successful, this
* function returns 0, otherwise it returns -1.
@ -429,7 +485,7 @@ extern DECLSPEC int SDLCALL SDL_SetGamma(float red, float green, float blue);
* representing a mapping between the input and output for that channel.
* The input is the index into the array, and the output is the 16-bit
* gamma value at that index, scaled to the output color precision.
*
*
* You may pass NULL for any of the channels to leave it unchanged.
* If the call succeeds, it will return 0. If the display driver or
* hardware does not support gamma translation, or otherwise fails,
@ -439,7 +495,7 @@ extern DECLSPEC int SDLCALL SDL_SetGammaRamp(const Uint16 *red, const Uint16 *gr
/**
* Retrieve the current values of the gamma translation tables.
*
*
* You must pass in valid pointers to arrays of 256 16-bit quantities.
* Any of the pointers may be NULL to ignore that channel.
* If the call succeeds, it will return 0. If the display driver or
@ -457,13 +513,13 @@ extern DECLSPEC int SDLCALL SDL_GetGammaRamp(Uint16 *red, Uint16 *green, Uint16
* determine the actual color palette.
*
* When 'surface' is the surface associated with the current display, the
* display colormap will be updated with the requested colors. If
* display colormap will be updated with the requested colors. If
* SDL_HWPALETTE was set in SDL_SetVideoMode() flags, SDL_SetColors()
* will always return 1, and the palette is guaranteed to be set the way
* you desire, even if the window colormap has to be warped or run under
* emulation.
*/
extern DECLSPEC int SDLCALL SDL_SetColors(SDL_Surface *surface,
extern DECLSPEC int SDLCALL SDL_SetColors(SDL_Surface *surface,
SDL_Color *colors, int firstcolor, int ncolors);
/**
@ -537,7 +593,7 @@ extern DECLSPEC void SDLCALL SDL_GetRGBA(Uint32 pixel,
* two surfaces in video memory, SDL will try to place the surface in
* video memory. If this isn't possible or if there is no hardware
* acceleration available, the surface will be placed in system memory.
* SDL_SRCALPHA means that the surface will be used for alpha blits and
* SDL_SRCALPHA means that the surface will be used for alpha blits and
* if the hardware supports hardware acceleration of alpha blits between
* two surfaces in video memory, to place the surface in video memory
* if possible, otherwise it will be placed in system memory.
@ -551,7 +607,7 @@ extern DECLSPEC void SDLCALL SDL_GetRGBA(Uint32 pixel,
* the SDL_HWSURFACE flag set, and will be created in system memory instead.
*/
extern DECLSPEC SDL_Surface * SDLCALL SDL_CreateRGBSurface
(Uint32 flags, int width, int height, int depth,
(Uint32 flags, int width, int height, int depth,
Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask);
/** @sa SDL_CreateRGBSurface */
extern DECLSPEC SDL_Surface * SDLCALL SDL_CreateRGBSurfaceFrom(void *pixels,
@ -562,8 +618,8 @@ extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface *surface);
/**
* SDL_LockSurface() sets up a surface for directly accessing the pixels.
* Between calls to SDL_LockSurface()/SDL_UnlockSurface(), you can write
* to and read from 'surface->pixels', using the pixel format stored in
* 'surface->format'. Once you are done accessing the surface, you should
* to and read from 'surface->pixels', using the pixel format stored in
* 'surface->format'. Once you are done accessing the surface, you should
* use SDL_UnlockSurface() to release it.
*
* Not all surfaces require locking. If SDL_MUSTLOCK(surface) evaluates
@ -571,7 +627,7 @@ extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface *surface);
* pixel format of the surface will not change. In particular, if the
* SDL_HWSURFACE flag is not given when calling SDL_SetVideoMode(), you
* will not need to lock the display surface before accessing it.
*
*
* No operating system or library calls should be made between lock/unlock
* pairs, as critical system locks may be held during this time.
*
@ -605,7 +661,7 @@ extern DECLSPEC int SDLCALL SDL_SaveBMP_RW
/**
* Sets the color key (transparent pixel) in a blittable surface.
* If 'flag' is SDL_SRCCOLORKEY (optionally OR'd with SDL_RLEACCEL),
* If 'flag' is SDL_SRCCOLORKEY (optionally OR'd with SDL_RLEACCEL),
* 'key' will be the transparent pixel in the source image of a blit.
* SDL_RLEACCEL requests RLE acceleration for the surface if present,
* and removes RLE acceleration if absent.
@ -654,11 +710,11 @@ extern DECLSPEC SDL_bool SDLCALL SDL_SetClipRect(SDL_Surface *surface, const SDL
extern DECLSPEC void SDLCALL SDL_GetClipRect(SDL_Surface *surface, SDL_Rect *rect);
/**
* Creates a new surface of the specified format, and then copies and maps
* the given surface to it so the blit of the converted surface will be as
* Creates a new surface of the specified format, and then copies and maps
* the given surface to it so the blit of the converted surface will be as
* fast as possible. If this function fails, it returns NULL.
*
* The 'flags' parameter is passed to SDL_CreateRGBSurface() and has those
* The 'flags' parameter is passed to SDL_CreateRGBSurface() and has those
* semantics. You can also pass SDL_RLEACCEL in the flags parameter and
* SDL will try to RLE accelerate colorkey and alpha blits in the resulting
* surface.
@ -690,7 +746,7 @@ extern DECLSPEC SDL_Surface * SDLCALL SDL_ConvertSurface
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* RGB values of the source colour key, ignoring alpha in the
* comparison.
*
*
* RGB->RGBA:
* SDL_SRCALPHA set:
* alpha-blend (using the source per-surface alpha value);
@ -700,7 +756,7 @@ extern DECLSPEC SDL_Surface * SDLCALL SDL_ConvertSurface
* both:
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* source colour key.
*
*
* RGBA->RGBA:
* SDL_SRCALPHA set:
* alpha-blend (using the source alpha channel) the RGB values;
@ -711,8 +767,8 @@ extern DECLSPEC SDL_Surface * SDLCALL SDL_ConvertSurface
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* RGB values of the source colour key, ignoring alpha in the
* comparison.
*
* RGB->RGB:
*
* RGB->RGB:
* SDL_SRCALPHA set:
* alpha-blend (using the source per-surface alpha value).
* SDL_SRCALPHA not set:
@ -722,7 +778,7 @@ extern DECLSPEC SDL_Surface * SDLCALL SDL_ConvertSurface
* source colour key.
*
* If either of the surfaces were in video memory, and the blit returns -2,
* the video memory was lost, so it should be reloaded with artwork and
* the video memory was lost, so it should be reloaded with artwork and
* re-blitted:
* @code
* while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) {
@ -760,7 +816,7 @@ extern DECLSPEC int SDLCALL SDL_LowerBlit
* The given rectangle is clipped to the destination surface clip area
* and the final fill rectangle is saved in the passed in pointer.
* If 'dstrect' is NULL, the whole surface will be filled with 'color'
* The color should be a pixel of the format used by the surface, and
* The color should be a pixel of the format used by the surface, and
* can be generated by the SDL_MapRGB() function.
* This function returns 0 on success, or -1 on error.
*/
@ -813,7 +869,7 @@ extern DECLSPEC void SDLCALL SDL_UnlockYUVOverlay(SDL_Overlay *overlay);
/** Blit a video overlay to the display surface.
* The contents of the video surface underneath the blit destination are
* not defined.
* not defined.
* The width and height of the destination rectangle may be different from
* that of the overlay, but currently only 2x scaling is supported.
*/
@ -908,7 +964,7 @@ extern DECLSPEC int SDLCALL SDL_WM_IconifyWindow(void);
* If the display surface does not require locking before accessing
* the pixel information, then the memory pointers will not change.
*
* If this function was able to toggle fullscreen mode (change from
* If this function was able to toggle fullscreen mode (change from
* running in a window to fullscreen, or vice-versa), it will return 1.
* If it is not implemented, or fails, it returns 0.
*
@ -941,7 +997,7 @@ extern DECLSPEC SDL_GrabMode SDLCALL SDL_WM_GrabInput(SDL_GrabMode mode);
/** @internal Not in public API at the moment - do not use! */
extern DECLSPEC int SDLCALL SDL_SoftStretch(SDL_Surface *src, SDL_Rect *srcrect,
SDL_Surface *dst, SDL_Rect *dstrect);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}

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107
src/timer/prizm/SDL_systimer.c

@ -0,0 +1,107 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include <gint/gint.h>
#include <gint/timer.h>
#include <gint/rtc.h>
#include "SDL_config.h"
#ifdef SDL_TIMER_PRIZM
#include "SDL_timer.h"
#include "../SDL_timer_c.h"
static volatile unsigned *value;
static volatile unsigned *control;
Uint32 tick_sum = 0;
Uint32 start = 0;
/*
Uses the first timer (0x900C0000)
TC: http://hackspire.unsads.com/wiki/index.php/Memory-mapped_I/O_ports#900C0000_-_First_timer
CX: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0271d/Babehiha.html
*/
void SDL_StartTicks(void)
{
}
Uint32 SDL_GetTicks (void)
{
}
void SDL_Delay (Uint32 ms)
{
}
#include "SDL_thread.h"
/* Data to handle a single periodic alarm */
static int timer_alive = 0;
static SDL_Thread *timer = NULL;
static int RunTimer(void *unused)
{
while ( timer_alive ) {
if ( SDL_timer_running ) {
SDL_ThreadedTimerCheck();
}
SDL_Delay(1);
}
return(0);
}
/* This is only called if the event thread is not running */
int SDL_SYS_TimerInit(void)
{
timer_alive = 1;
timer = SDL_CreateThread(RunTimer, NULL);
if ( timer == NULL )
return(-1);
return(SDL_SetTimerThreaded(1));
}
void SDL_SYS_TimerQuit(void)
{
timer_alive = 0;
if ( timer ) {
SDL_WaitThread(timer, NULL);
timer = NULL;
}
}
int SDL_SYS_StartTimer(void)
{
//SDL_SetError("Timers not implemented on the TI-Nspire");
return(-1);
}
void SDL_SYS_StopTimer(void)
{
return;
}
#endif /* SDL_TIMER_PRIZM */

9
src/video/SDL_sysvideo.h

@ -53,7 +53,7 @@ struct SDL_VideoDevice {
/* * * */
/* Initialization/Query functions */
/* Initialize the native video subsystem, filling 'vformat' with the
/* Initialize the native video subsystem, filling 'vformat' with the
"best" display pixel format, returning 0 or -1 if there's an error.
*/
int (*VideoInit)(_THIS, SDL_PixelFormat *vformat);
@ -119,7 +119,7 @@ struct SDL_VideoDevice {
/* The pixel format used when SDL_CreateRGBSurface creates SDL_HWSURFACEs with alpha */
SDL_PixelFormat* displayformatalphapixel;
/* Allocates a surface in video memory */
int (*AllocHWSurface)(_THIS, SDL_Surface *surface);
@ -195,7 +195,7 @@ struct SDL_VideoDevice {
GLuint texture;
#endif
int is_32bit;
/* * * */
/* Window manager functions */
@ -410,6 +410,9 @@ extern VideoBootStrap AALIB_bootstrap;
#if SDL_VIDEO_DRIVER_CACA
extern VideoBootStrap CACA_bootstrap;
#endif
#if SDL_VIDEO_DRIVER_PRIZME
extern VideoBootStrap PRZ_bootstrap;
#endif
#if SDL_VIDEO_DRIVER_DUMMY
extern VideoBootStrap DUMMY_bootstrap;
#endif

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100
src/video/prizm/SDL_prizmevents.c

@ -0,0 +1,100 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#include "SDL.h"
#include "../../events/SDL_sysevents.h"
#include "../../events/SDL_events_c.h"
#include "../SDL_cursor_c.h"
#include <gint/keyboard.h>
#include "SDL_prizmvideo.h"
#include "SDL_prizmevents_c.h"
static int nspk_keymap[PRZ_NUMKEYS];
static SDLKey sdlk_keymap[PRZ_NUMKEYS];
static Uint8 key_state[PRZ_NUMKEYS];
static SDLKey sdlak_keymap[4] = {SDLK_UP, SDLK_RIGHT, SDLK_DOWN, SDLK_LEFT};
static Uint8 arrow_key_state[4];
static void nsp_update_keyboard(void)
{
int i;
for ( i = 0; i < PRZ_NUMKEYS; ++i ) {
bool key_pressed;
if ( sdlk_keymap[i] == SDLK_UNKNOWN )
continue;
key_pressed = keydown(nspk_keymap[i]);
PRZ_UPDATE_KEY_EVENT(sdlk_keymap[i], i, key_state[i], key_pressed);
}
}
static void nsp_update_arrow_keys(void)
{
bool arrow_key_pressed[4] = {
keydown(KEY_UP),
keydown(KEY_RIGHT),
keydown(KEY_DOWN),
keydown(KEY_LEFT)
};
int i;
for ( i = 0; i < 4; ++i )
PRZ_UPDATE_KEY_EVENT(sdlak_keymap[i], i, arrow_key_state[i], arrow_key_pressed[i]);
}
void PRZ_PumpEvents(_THIS)
{
nsp_update_keyboard();
nsp_update_arrow_keys();
}
void PRZ_InitOSKeymap(_THIS)
{
/* Enum value -> KEY_NSPIRE_* */
//nspk_keymap[NSP_KEY_RET] = KEY_NSPIRE_RET;
/*
**
**
**
**
*/
/* Enum value -> SDLK_*
This is the actual key mapping part. */
// sdlk_keymap[NSP_KEY_A] = SDLK_a;
/*
**
**
**
**
*/
}
/* end of SDL_tinspireevents.c ... */

102
src/video/prizm/SDL_prizmevents_c.h

@ -0,0 +1,102 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#include "SDL_prizmvideo.h"
#define PRZ_UPDATE_KEY_EVENT(s, sc, ks, kp) do { \
SDL_keysym keysym; \
keysym.scancode = sc; \
keysym.sym = s; \
if ( ks == SDL_RELEASED ) { \
if ( kp ) { \
SDL_PrivateKeyboard(SDL_PRESSED, &keysym); \
ks = SDL_PRESSED; \
} \
} else if ( ! kp ) { \
SDL_PrivateKeyboard(SDL_RELEASED, &keysym); \
ks = SDL_RELEASED; \
} \
} while (0)
/* Keys */
enum {
PRZ_KEY_F1,
PRZ_KEY_F2,
PRZ_KEY_F3,
PRZ_KEY_F4,
PRZ_KEY_F5,
PRZ_KEY_F6,
PRZ_KEY_SHIFT,
PRZ_KEY_OPTN,
PRZ_KEY_VARS,
PRZ_KEY_MENU,
PRZ_KEY_LEFT,
PRZ_KEY_UP,
PRZ_KEY_ALPHA,
PRZ_KEY_SQUARE,
PRZ_KEY_POWER,
PRZ_KEY_EXIT,
PRZ_KEY_DOWN,
PRZ_KEY_RIGHT,
PRZ_KEY_XOT,
PRZ_KEY_LOG,
PRZ_KEY_LN,
PRZ_KEY_SIN,
PRZ_KEY_COS,
PRZ_KEY_TAN,
PRZ_KEY_FRAC,
PRZ_KEY_FD,
PRZ_KEY_LEFTP,
PRZ_KEY_RIGHTP,
PRZ_KEY_COMMA,
PRZ_KEY_ARROW,
PRZ_KEY_7,
PRZ_KEY_8,
PRZ_KEY_9,
PRZ_KEY_DEL,
PRZ_KEY_4,
PRZ_KEY_5,
PRZ_KEY_6,
PRZ_KEY_MUL,
PRZ_KEY_DIV,
PRZ_KEY_1,
PRZ_KEY_2,
PRZ_KEY_3,
PRZ_KEY_ADD,
PRZ_KEY_SUB,
PRZ_KEY_0,
PRZ_KEY_DOT,
PRZ_KEY_EXP,
PRZ_KEY_NEG,
PRZ_KEY_EXE,
PRZ_KEY_ACON,
PRZ_NUMKEYS
};
/* Variables and functions exported by SDL_sysevents.c to other parts
of the native video subsystem (SDL_sysvideo.c)
*/
extern void PRZ_InitOSKeymap(_THIS);
extern void PRZ_PumpEvents(_THIS);
/* end of SDL_tinspireevents_c.h ... */

133
src/video/prizm/SDL_prizmfonts.c

@ -0,0 +1,133 @@
#include "SDL_config.h"
#include "../SDL_sysvideo.h"
#include "SDL_prizmvideo.h"
#include "SDL_prizmfonts.h"
nSDL_Font *nSDL_LoadFont(int font_index, Uint8 r, Uint8 g, Uint8 b)
{
nSDL_Font *font;
int i, j, k;
font = SDL_malloc(sizeof(*font));
if ( font == NULL ) {
SDL_OutOfMemory();
return(NULL);
}
for ( i = 0; i < NSP_FONT_NUMCHARS; ++i ) {
int offset = 8 * i;
int max_width = 0;
Uint32 color;
SDL_Surface *tmp = SDL_CreateRGBSurface(SDL_SWSURFACE, NSP_FONT_WIDTH, NSP_FONT_HEIGHT,
16, PRZ_RMASK16, PRZ_GMASK16, PRZ_BMASK16, 0);
if ( tmp == NULL ) {
SDL_OutOfMemory();
return(NULL);
}
color = SDL_MapRGB(tmp->format, r, g, b);
SDL_FillRect(tmp, NULL, ! color);
SDL_SetColorKey(tmp, SDL_SRCCOLORKEY, ! color);
font->char_width[i] = NSP_FONT_WIDTH;
SDL_LockSurface(tmp);
for ( j = 0; j < NSP_FONT_HEIGHT; ++j )
for ( k = 0; k < NSP_FONT_WIDTH; ++k ) {
if ( nsp_font_charmaps[font_index][offset + j] & (1 << (NSP_FONT_WIDTH - k - 1)) ) { /* "Pixel" set */
if ( k > max_width ) {
font->char_width[i] = k + 1;
max_width = k;
}
nSDL_SetPixel(tmp, k, j, color);
}
}
SDL_UnlockSurface(tmp);
font->chars[i] = SDL_DisplayFormat(tmp);
SDL_FreeSurface(tmp);
font->hspacing = font->vspacing = 0;
font->monospaced = SDL_FALSE;
}
return(font);
}
void nSDL_SetFontSpacing(nSDL_Font *font, int hspacing, int vspacing)
{
font->hspacing = hspacing;
font->vspacing = vspacing;
}
void nSDL_EnableFontMonospaced(nSDL_Font *font, SDL_bool toggle)
{
font->monospaced = toggle;
}
void nSDL_FreeFont(nSDL_Font *font)
{
int i;
if ( font == NULL )
return;
for ( i = 0; i < NSP_FONT_NUMCHARS; ++i )
SDL_FreeSurface(font->chars[i]);
SDL_free(font);
}
int nSDL_DrawString(SDL_Surface *surface, nSDL_Font *font,
int x, int y, const char *format, ...)
{
char buf[PRZ_BUF_SIZE];
int length;
SDL_Rect pos;
va_list args;
int i;
va_start(args, format);
if ( vsprintf(buf, format, args) < 0 )
return(-1);
va_end(args);
length = (int)strlen(buf);
pos.x = x;
pos.y = y;
PRZ_DEBUG("\"%s\" at (%d, %d)", buf, pos.x, pos.y);
for ( i = 0; i < length; ++i ) {
int c = buf[i];
if ( c == '\n' ) {
pos.x = x;
pos.y += NSP_FONT_HEIGHT + font->vspacing;
} else {
SDL_Rect rect;
rect.x = rect.y = 0;
rect.w = font->char_width[c];
rect.h = NSP_FONT_HEIGHT;
if ( SDL_BlitSurface(font->chars[c], &rect, surface, &pos) == -1 )
return(-1);
pos.x += NSP_CHAR_WIDTH(font, c) + font->hspacing;
}
}
return(0);
}
int nSDL_GetStringWidth(nSDL_Font *font, const char *s)
{
int width = 0;
int max_width = 0;
do {
if ( *s == '\n' || *s == '\0' ) {
if ( width > max_width )
max_width = width;
width = 0;
} else
width += NSP_CHAR_WIDTH(font, *s) + font->hspacing;
} while ( *s++ );
return(max_width - font->hspacing);
}
int nSDL_GetStringHeight(nSDL_Font *font, const char *s)
{
int height = 0;
do {
if ( *s == '\n' || *s == '\0' )
height += NSP_FONT_HEIGHT + font->vspacing;
} while ( *s++ );
return(height - font->vspacing);
}

1309
src/video/prizm/SDL_prizmfonts.h

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38
src/video/prizm/SDL_prizmnti.c

@ -0,0 +1,38 @@
#include "SDL_video.h"
#include "SDL_prizmvideo.h"
#include "SDL_prizmnti.h"
static void nti_get_info(nti_info_t *nti_info, Uint16 *data)
{
nti_info->magic = data[0] >> 8;
nti_info->version = data[0] & 0x00ff;
nti_info->width = data[1];
nti_info->height = data[2];
nti_info->reserved = data[3];
}
SDL_Surface *nSDL_LoadImage(Uint16 *data)
{
SDL_Surface *image;
nti_info_t nti_info;
int i, j;
nti_get_info(&nti_info, data);
if ( nti_info.magic != 42 ) {
SDL_SetError("[PRZ] Invalid NTI image");
return(NULL);
}
PRZ_DEBUG("Loading NTI v%d (%dx%d)", nti_info.version, nti_info.width, nti_info.height);
image = SDL_CreateRGBSurface(SDL_SWSURFACE, nti_info.width, nti_info.height,
16, PRZ_RMASK16, PRZ_GMASK16, PRZ_BMASK16, 0);
if ( image == NULL ) {
SDL_OutOfMemory();
return(NULL);
}
data = (Uint16 *)(data + 4);
SDL_LockSurface(image);
for ( i = 0; i < nti_info.height; ++i )
for( j = 0; j < nti_info.width; ++j)
nSDL_SetPixel(image, j, i, data[j + (nti_info.width * i)]);
SDL_UnlockSurface(image);
return(image);
}

15
src/video/prizm/SDL_prizmnti.h

@ -0,0 +1,15 @@
#ifndef _SDL_tinspirenti_h
#define _SDL_tinspirenti_h
#include "SDL_stdinc.h"
/* NTI specification: https://github.com/Hoffa/nSDL/wiki/NTI-specification */
typedef struct nti_info_t {
Uint8 magic;
Uint8 version;
Uint16 width, height;
Uint16 reserved;
} nti_info_t;
#endif /* _SDL_tinspirenti_h */

17
src/video/prizm/SDL_prizmutils.c

@ -0,0 +1,17 @@
#include <gint/gint.h>
#include "SDL_video.h"
#include "SDL_prizmvideo.h"
int nSDL_EnableRelativePaths(char **argv)
{
/*
char buf[NSP_BUF_SIZE], *p;
strcpy(buf, argv[0]);
p = strrchr(buf, '/');
if ( ! p )
return(-1);
*p = '\0';
return(NU_Set_Current_Dir(buf) ? -1 : 0);
*/
return(0);
}

257
src/video/prizm/SDL_prizmvideo.c

@ -0,0 +1,257 @@
/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL.h"
#include "SDL_config.h"
#include "SDL_mouse.h"
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "../../events/SDL_events_c.h"
#include "SDL_prizmvideo.h"
#include "SDL_prizmevents_c.h"
#include <gint/gint.h>
#include <gint/display.h>
//#include "SDL_tinspireevents_c.h"
static Uint16 prz_palette[256] = {0};
/* Initialization/Query functions */
static int PRZ_VideoInit(_THIS, SDL_PixelFormat *vformat);
static SDL_Rect **PRZ_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags);
static SDL_Surface *PRZ_SetVideoMode(_THIS, SDL_Surface *current, int width, int height, int bpp, Uint32 flags);
static int PRZ_SetColors(_THIS, int firstcolor, int ncolors, SDL_Color *colors);
static void PRZ_VideoQuit(_THIS);
/* etc. */
static void PRZ_UpdateRects(_THIS, int numrects, SDL_Rect *rects);
/* NSP driver bootstrap functions */
static int PRZ_Available(void)
{
return(1);
}
static void PRZ_DeleteDevice(SDL_VideoDevice *device)
{
SDL_free(device->hidden);
SDL_free(device);
}
static SDL_VideoDevice *PRZ_CreateDevice(int devindex)
{
SDL_VideoDevice *device;
/* Initialize all variables that we clean on shutdown */
device = (SDL_VideoDevice *)SDL_malloc(sizeof(SDL_VideoDevice));
if ( device ) {
SDL_memset(device, 0, (sizeof *device));
device->hidden = (struct SDL_PrivateVideoData *)
SDL_malloc((sizeof *device->hidden));
}
if ( (device == NULL) || (device->hidden == NULL) ) {
SDL_OutOfMemory();
if ( device ) {
SDL_free(device);
}
return(0);
}
SDL_memset(device->hidden, 0, (sizeof *device->hidden));
/* Set the function pointers */
device->VideoInit = PRZ_VideoInit;
device->ListModes = PRZ_ListModes;
device->SetVideoMode = PRZ_SetVideoMode;
device->SetColors = PRZ_SetColors;
device->UpdateRects = PRZ_UpdateRects;
device->VideoQuit = PRZ_VideoQuit;
device->InitOSKeymap = PRZ_InitOSKeymap;
device->PumpEvents = PRZ_PumpEvents;
device->free = PRZ_DeleteDevice;
return device;
}
VideoBootStrap PRZ_bootstrap = {
"prizm", "SDL Casio PRIZM video driver",
PRZ_Available, PRZ_CreateDevice
};
static int PRZ_VideoInit(_THIS, SDL_PixelFormat *vformat)
{
this->hidden->cx = (int) true;
this->info.current_w = DWIDTH;
this->info.current_h = DHEIGHT;
if ( this->hidden->cx ) {
vformat->BitsPerPixel = 16;
vformat->Rmask = PRZ_RMASK16;
vformat->Gmask = PRZ_GMASK16;
vformat->Bmask = PRZ_BMASK16;
}
return(0);
}
static SDL_Rect **PRZ_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)
{
return (SDL_Rect **) -1;
}
static SDL_Surface *PRZ_SetVideoMode(_THIS, SDL_Surface *current,
int width, int height, int bpp, Uint32 flags)
{
Uint32 rmask, gmask, bmask;
//NSP_DEBUG("Initializing display (%dx%dx%d)", width, height, bpp);
//if ( flags != SDL_SWSURFACE )
// NSP_WARNING("Initializing with non-typical flags");
if ( width < DWIDTH || height < DHEIGHT ) {
int win_x = (DWIDTH - width) / 2;
int win_y = (DHEIGHT - height) / 2;
this->hidden->offset = (int)PRZ_PIXEL_ADDR(0, win_x, win_y, 2 * DWIDTH, 2)