| version 1.1 | | version 1.2 |
|---|
| | |
| #include <stdio.h> | | #include <stdio.h> |
| #include <string.h> | | #include <string.h> |
| #include <vga.h> | | #include <vga.h> |
| | | #include <vgagl.h> |
| #include "gr.h" | | #include "gr.h" |
| #include "grdef.h" | | #include "grdef.h" |
| #include "palette.h" | | #include "palette.h" |
| #include "u_mem.h" | | #include "u_mem.h" |
| #include "error.h" | | #include "error.h" |
| | | #ifdef SVGALIB_INPUT |
| | | #include <vgamouse.h> |
| | | #endif |
| | | |
| int gr_installed = 0; | | int gr_installed = 0; |
| | | int usebuffer; |
| | | |
| | | extern void mouse_handler (int button, int dx, int dy, int dz, int drx, int dry, int drz); |
| | | |
| | | GraphicsContext *physicalscreen, *screenbuffer; |
| | | |
| void gr_update() | | void gr_update() |
| { | | { |
| //added 05/19/99 Matt Mueller - locking stuff | | if (usebuffer) |
| // gr_testunlock(); | | gl_copyscreen(physicalscreen); |
| //end addition -MM | | |
| } | | } |
| | | |
| int gr_set_mode(int mode) | | int gr_set_mode(int mode) |
| { | | { |
| unsigned int w, h, r, t; | | unsigned int w, h, r; |
| char vgamode[16]; | | char vgamode[16]; |
| vga_modeinfo *modeinfo; | | vga_modeinfo *modeinfo; |
| | | int modenum, rowsize; |
| | | void *framebuffer; |
| | | |
| #ifdef NOGRAPH | | #ifdef NOGRAPH |
| return 0; | | return 0; |
| | |
| gr_palette_clear(); | | gr_palette_clear(); |
| | | |
| sprintf(vgamode, "G%dx%dx256", w, h); | | sprintf(vgamode, "G%dx%dx256", w, h); |
| vga_setmode(vga_getmodenumber(vgamode)); | | modenum = vga_getmodenumber(vgamode); |
| modeinfo = vga_getmodeinfo(vga_getmodenumber(vgamode)); | | vga_setmode(modenum); |
| | | #ifdef SVGALIB_INPUT |
| | | mouse_seteventhandler(mouse_handler); |
| | | #endif |
| | | modeinfo = vga_getmodeinfo(modenum); |
| | | |
| if (modeinfo->flags & IS_MODEX) | | if (modeinfo->flags & CAPABLE_LINEAR) |
| t = BM_MODEX; | | { |
| | | usebuffer = 0; |
| | | vga_setlinearaddressing(); |
| | | framebuffer = vga_getgraphmem(); |
| | | rowsize = modeinfo->linewidth; |
| | | } |
| else | | else |
| t = BM_LINEAR; | | { |
| | | usebuffer = 1; |
| | | gl_setcontextvga(modenum); |
| | | physicalscreen = gl_allocatecontext(); |
| | | gl_getcontext(physicalscreen); |
| | | gl_setcontextvgavirtual(modenum); |
| | | screenbuffer = gl_allocatecontext(); |
| | | gl_getcontext(screenbuffer); |
| | | |
| | | framebuffer = screenbuffer->vbuf; |
| | | rowsize = w; |
| | | } |
| | | |
| memset(grd_curscreen, 0, sizeof(grs_screen)); | | memset(grd_curscreen, 0, sizeof(grs_screen)); |
| grd_curscreen->sc_mode = mode; | | grd_curscreen->sc_mode = mode; |
| | |
| grd_curscreen->sc_canvas.cv_bitmap.bm_y = 0; | | grd_curscreen->sc_canvas.cv_bitmap.bm_y = 0; |
| grd_curscreen->sc_canvas.cv_bitmap.bm_w = w; | | grd_curscreen->sc_canvas.cv_bitmap.bm_w = w; |
| grd_curscreen->sc_canvas.cv_bitmap.bm_h = h; | | grd_curscreen->sc_canvas.cv_bitmap.bm_h = h; |
| grd_curscreen->sc_canvas.cv_bitmap.bm_rowsize = r; | | grd_curscreen->sc_canvas.cv_bitmap.bm_rowsize = rowsize; |
| grd_curscreen->sc_canvas.cv_bitmap.bm_type = t; | | grd_curscreen->sc_canvas.cv_bitmap.bm_type = BM_LINEAR; |
| grd_curscreen->sc_canvas.cv_bitmap.bm_data = (unsigned char *)vga_getgraphmem(); | | grd_curscreen->sc_canvas.cv_bitmap.bm_data = framebuffer; |
| gr_set_current_canvas(NULL); | | gr_set_current_canvas(NULL); |
| return 0; | | return 0; |
| } | | } |
| | | |
| void modex_setplane(int plane) | | |
| { | | |
| if (plane < 0 || plane > 3) | | |
| return; | | |
| port_out(0x02, 0x3C4); | | |
| port_out(1 << plane, 0x3C5); | | |
| } | | |
| | | |
| int gr_init(int mode) | | int gr_init(int mode) |
| { | | { |
| int retcode; | | int retcode; |
| | |
| memset(grd_curscreen, 0, sizeof(grs_screen)); | | memset(grd_curscreen, 0, sizeof(grs_screen)); |
| | | |
| vga_init(); | | vga_init(); |
| vga_setlinearaddressing(); | | |
| | | |
| if ((retcode=gr_set_mode(mode))) | | if ((retcode=gr_set_mode(mode))) |
| return retcode; | | return retcode; |
| | |
| { | | { |
| gr_installed = 0; | | gr_installed = 0; |
| free(grd_curscreen); | | free(grd_curscreen); |
| | | gl_freecontext(screenbuffer); |
| | | gl_freecontext(physicalscreen); |
| } | | } |
| } | | } |
| | | |