336 lines
12 KiB
C++
336 lines
12 KiB
C++
/*
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* Portions of this file are copyright Rebirth contributors and licensed as
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* described in COPYING.txt.
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* Portions of this file are copyright Parallax Software and licensed
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* according to the Parallax license below.
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* See COPYING.txt for license details.
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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#pragma once
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#include <cstdint>
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#include <memory>
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#include "palette.h"
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#include "maths.h"
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// some defines for transparency and blending
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#define TRANSPARENCY_COLOR 255 // palette entry of transparency color -- 255 on the PC
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#define GR_FADE_LEVELS 34
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#define GR_FADE_OFF GR_FADE_LEVELS // yes, max means OFF - don't screw that up
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#define GR_BLEND_NORMAL 0 // normal blending
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#define GR_BLEND_ADDITIVE_A 1 // additive alpha blending
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#define GR_BLEND_ADDITIVE_C 2 // additive color blending
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#define GWIDTH grd_curcanv->cv_bitmap.bm_w
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#define GHEIGHT grd_curcanv->cv_bitmap.bm_h
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#define SWIDTH (grd_curscreen->get_screen_width())
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#define SHEIGHT (grd_curscreen->get_screen_height())
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#if defined(DXX_BUILD_DESCENT_I)
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extern int HiresGFXAvailable;
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#define HIRESMODE HiresGFXAvailable // descent.pig either contains hires or lowres graphics, not both
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#elif defined(DXX_BUILD_DESCENT_II)
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#define HIRESMODE (SWIDTH >= 640 && SHEIGHT >= 480 && !GameArg.GfxSkipHiresGFX)
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#endif
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#define MAX_BMP_SIZE(width, height) (4 + ((width) + 2) * (height))
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#define SCRNS_DIR "screenshots/"
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//these are control characters that have special meaning in the font code
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#define CC_COLOR 1 //next char is new foreground color
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#define CC_LSPACING 2 //next char specifies line spacing
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#define CC_UNDERLINE 3 //next char is underlined
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//now have string versions of these control characters (can concat inside a string)
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#define CC_COLOR_S "\x1" //next char is new foreground color
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#define CC_LSPACING_S "\x2" //next char specifies line spacing
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#define CC_UNDERLINE_S "\x3" //next char is underlined
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#define BM_LINEAR 0
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#define BM_RGB15 3 //5 bits each r,g,b stored at 16 bits
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#ifdef OGL
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#define BM_OGL 5
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#endif /* def OGL */
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#define BM_FLAG_TRANSPARENT 1
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#define BM_FLAG_SUPER_TRANSPARENT 2
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#define BM_FLAG_NO_LIGHTING 4
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#define BM_FLAG_RLE 8 // A run-length encoded bitmap.
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#define BM_FLAG_PAGED_OUT 16 // This bitmap's data is paged out.
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#define BM_FLAG_RLE_BIG 32 // for bitmaps that RLE to > 255 per row (i.e. cockpits)
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#ifdef __cplusplus
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#include "dxxsconf.h"
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#include "compiler-array.h"
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struct grs_bitmap;
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struct grs_canvas;
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#define GRS_FONT_SIZE 28 // how much space it takes up on disk
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struct grs_font;
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struct grs_point;
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union screen_mode;
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class grs_screen;
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struct grs_main_canvas;
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typedef std::unique_ptr<grs_main_canvas> grs_canvas_ptr;
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struct grs_subcanvas;
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typedef std::unique_ptr<grs_subcanvas> grs_subcanvas_ptr;
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// Free the bitmap and its pixel data
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class grs_main_bitmap;
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typedef std::unique_ptr<grs_main_bitmap> grs_bitmap_ptr;
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uint_fast32_t gr_list_modes(array<screen_mode, 50> &modes);
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int gr_set_mode(screen_mode mode);
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int gr_init();
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#ifdef OGL
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void gr_set_attributes();
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#endif
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void gr_close();
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grs_canvas_ptr gr_create_canvas(uint16_t w, uint16_t h);
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grs_subcanvas_ptr gr_create_sub_canvas(grs_canvas &canv,uint16_t x,uint16_t y,uint16_t w, uint16_t h);
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// Initialize the specified canvas. the raw pixel data buffer is passed as
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// a parameter. no memory allocation is performed.
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void gr_init_canvas(grs_canvas &canv,unsigned char *pixdata, uint8_t pixtype, uint16_t w, uint16_t h);
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// Initialize the specified sub canvas. no memory allocation is performed.
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void gr_init_sub_canvas(grs_canvas &n, grs_canvas &src, uint16_t x, uint16_t y, uint16_t w, uint16_t h);
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// Clear the current canvas to the specified color
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void gr_clear_canvas(color_t color);
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//=========================================================================
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// Bitmap functions:
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// these are the two workhorses, the others just use these
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void gr_init_bitmap(grs_bitmap &bm, uint8_t mode, uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t bytesperline, unsigned char * data);
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void gr_init_sub_bitmap (grs_bitmap &bm, grs_bitmap &bmParent, uint16_t x, uint16_t y, uint16_t w, uint16_t h);
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void gr_init_bitmap_alloc(grs_bitmap &bm, uint8_t mode, uint16_t x, uint16_t y, uint16_t w, uint16_t h, uint16_t bytesperline);
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void gr_free_bitmap_data(grs_bitmap &bm);
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// Allocate a bitmap and its pixel data buffer.
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grs_bitmap_ptr gr_create_bitmap(uint16_t w,uint16_t h);
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// Free the bitmap, but not the pixel data buffer
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class grs_subbitmap;
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typedef std::unique_ptr<grs_subbitmap> grs_subbitmap_ptr;
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// Creates a bitmap which is part of another bitmap
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grs_subbitmap_ptr gr_create_sub_bitmap(grs_bitmap &bm, uint16_t x, uint16_t y, uint16_t w, uint16_t h);
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// Free the bitmap's data
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void gr_init_bitmap_data (grs_bitmap &bm);
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void gr_bm_pixel(grs_bitmap &bm, uint_fast32_t x, uint_fast32_t y, uint8_t color);
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#ifndef OGL
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void gr_bm_ubitblt(unsigned w, unsigned h, int dx, int dy, int sx, int sy, const grs_bitmap &src, grs_bitmap &dest);
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void gr_bm_ubitbltm(unsigned w, unsigned h, unsigned dx, unsigned dy, unsigned sx, unsigned sy, const grs_bitmap &src, grs_bitmap &dest);
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#endif
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void gr_set_bitmap_data(grs_bitmap &bm, unsigned char *data);
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//=========================================================================
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// Color functions:
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// When this function is called, the guns are set to gr_palette, and
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// the palette stays the same until gr_close is called
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void gr_use_palette_table(const char * filename);
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//=========================================================================
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// Drawing functions:
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// Sets the color in the current canvas.
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void gr_setcolor(color_t color);
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// Sets transparency and blending function
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void gr_settransblend(int fade_level, uint8_t blend_func);
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// Draws a point into the current canvas in the current color and drawmode.
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void gr_pixel(unsigned x, unsigned y);
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void gr_upixel(unsigned x, unsigned y);
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// Gets a pixel;
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unsigned char gr_gpixel(const grs_bitmap &bitmap, int x, int y);
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unsigned char gr_ugpixel(const grs_bitmap &bitmap, int x, int y);
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// Draws a line into the current canvas in the current color and drawmode.
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void gr_line(fix x0,fix y0,fix x1,fix y1);
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void gr_uline(fix x0,fix y0,fix x1,fix y1);
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// Draw the bitmap into the current canvas at the specified location.
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void gr_bitmap(unsigned x,unsigned y,grs_bitmap &bm);
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void gr_ubitmap(grs_bitmap &bm);
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void show_fullscr(grs_bitmap &bm);
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// Find transparent area in bitmap
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void gr_bitblt_find_transparent_area(const grs_bitmap &bm, unsigned &minx, unsigned &miny, unsigned &maxx, unsigned &maxy);
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// bitmap function with transparency
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#ifndef OGL
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void gr_bitmapm(unsigned x, unsigned y, const grs_bitmap &bm);
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void gr_ubitmapm(unsigned x, unsigned y, grs_bitmap &bm);
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#endif
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// Draw a rectangle into the current canvas.
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void gr_rect(int left,int top,int right,int bot);
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void gr_urect(int left,int top,int right,int bot);
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// Draw a filled circle
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int gr_disk(fix x,fix y,fix r);
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// Draw an outline circle
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int gr_ucircle(fix x,fix y,fix r);
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// Draw an unfilled rectangle into the current canvas
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void gr_box(uint_fast32_t left,uint_fast32_t top,uint_fast32_t right,uint_fast32_t bot);
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void gr_ubox(int left,int top,int right,int bot);
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void gr_scanline(int x1, int x2, int y);
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#ifndef OGL
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void gr_uscanline(int x1, int x2, int y);
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#endif
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void gr_close_font(std::unique_ptr<grs_font> font);
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struct font_delete;
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typedef std::unique_ptr<grs_font, font_delete> grs_font_ptr;
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// Reads in a font file... current font set to this one.
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grs_font_ptr gr_init_font(const char * fontfile);
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#if defined(DXX_BUILD_DESCENT_I)
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#define DXX_SDL_WINDOW_CAPTION "Descent"
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#define DXX_SDL_WINDOW_ICON_BITMAP "d1x-rebirth.bmp"
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static inline void gr_remap_color_fonts() {}
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#elif defined(DXX_BUILD_DESCENT_II)
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#define DXX_SDL_WINDOW_CAPTION "Descent II"
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#define DXX_SDL_WINDOW_ICON_BITMAP "d2x-rebirth.bmp"
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void gr_copy_palette(palette_array_t &gr_palette, const palette_array_t &pal);
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//remap (by re-reading) all the color fonts
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void gr_remap_color_fonts();
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#endif
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// Writes a string using current font. Returns the next column after last char.
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void gr_set_curfont(const grs_font *);
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void gr_set_fontcolor(int fg_color, int bg_color);
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void gr_string(int x, int y, const char *s);
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void gr_string(int x, int y, const char *s, int w, int h);
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void gr_ustring(int x, int y, const char *s);
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void gr_printf(int x, int y, const char * format, ...) __attribute_format_printf(3, 4);
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#define gr_printf(A1,A2,F,...) dxx_call_printf_checked(gr_printf,gr_string,(A1,A2),(F),##__VA_ARGS__)
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void gr_uprintf(int x, int y, const char * format, ...) __attribute_format_printf(3, 4);
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#define gr_uprintf(A1,A2,F,...) dxx_call_printf_checked(gr_uprintf,gr_ustring,(A1,A2),(F),##__VA_ARGS__)
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void gr_get_string_size(const char *s, int *string_width, int *string_height, int *average_width);
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// From scale.c
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void scale_bitmap(const grs_bitmap &bp, const array<grs_point, 3> &vertbuf, int orientation);
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//===========================================================================
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// Global variables
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extern grs_canvas *grd_curcanv; //active canvas
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extern std::unique_ptr<grs_screen> grd_curscreen; //active screen
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void gr_set_default_canvas();
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void gr_set_current_canvas(grs_canvas &);
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void _gr_set_current_canvas(grs_canvas *);
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static inline void _gr_set_current_canvas_inline(grs_canvas *canv)
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{
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if (canv)
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gr_set_current_canvas(*canv);
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else
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gr_set_default_canvas();
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}
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static inline void gr_set_current_canvas(grs_canvas *canv)
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{
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#ifdef DXX_HAVE_BUILTIN_CONSTANT_P
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if (__builtin_constant_p(!canv))
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_gr_set_current_canvas_inline(canv);
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else
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#endif
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_gr_set_current_canvas(canv);
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}
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//flags for fonts
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#define FT_COLOR 1
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#define FT_PROPORTIONAL 2
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#define FT_KERNED 4
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extern palette_array_t gr_palette;
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typedef array<array<color_t, 256>, GR_FADE_LEVELS> gft_array1;
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extern gft_array1 gr_fade_table;
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extern uint16_t gr_palette_selector;
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extern uint16_t gr_inverse_table_selector;
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extern uint16_t gr_fade_table_selector;
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// Remaps a bitmap into the current palette. If transparent_color is
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// between 0 and 255 then all occurances of that color are mapped to
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// whatever color the 2d uses for transparency. This is normally used
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// right after a call to iff_read_bitmap like this:
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// iff_error = iff_read_bitmap(filename,new,BM_LINEAR,newpal);
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// if (iff_error != IFF_NO_ERROR) Error("Can't load IFF file <%s>, error=%d",filename,iff_error);
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// if (iff_has_transparency)
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// gr_remap_bitmap(new, newpal, iff_transparent_color);
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// else
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// gr_remap_bitmap(new, newpal, -1);
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// Same as above, but searches using gr_find_closest_color which uses
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// 18-bit accurracy instead of 15bit when translating colors.
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void gr_remap_bitmap_good(grs_bitmap &bmp, palette_array_t &palette, uint_fast32_t transparent_color, uint_fast32_t super_transparent_color);
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void gr_palette_step_up(int r, int g, int b);
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#define BM_RGB(r,g,b) ((((r)&31)<<10) | (((g)&31)<<5) | ((b)&31))
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#define BM_XRGB(r,g,b) gr_find_closest_color((r)*2,(g)*2,(b)*2)
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// Given: r,g,b, each in range of 0-63, return the color index that
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// best matches the input.
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color_t gr_find_closest_color(int r, int g, int b);
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int gr_find_closest_color_15bpp(int rgb);
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void gr_flip();
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/*
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* must return 0 if windowed, 1 if fullscreen
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*/
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int gr_check_fullscreen();
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/*
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* returns state after toggling (ie, same as if you had called
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* check_fullscreen immediatly after)
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*/
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void gr_toggle_fullscreen();
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void ogl_do_palfx();
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void ogl_init_pixel_buffers(unsigned w, unsigned h);
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void ogl_close_pixel_buffers();
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void ogl_cache_polymodel_textures(int model_num);;
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#endif
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