773 lines
19 KiB
C
773 lines
19 KiB
C
/*
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Copyright (C) 1996-2001 Id Software, Inc.
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Copyright (C) 2002-2009 John Fitzgibbons and others
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Copyright (C) 2007-2008 Kristian Duske
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Copyright (C) 2010-2014 QuakeSpasm developers
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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// draw.c -- 2d drawing
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#include "q_defs.h"
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//extern uint8_t d_15to8table[65536]; //johnfitz -- never used
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cvar_t scr_conalpha = {"scr_conalpha", "0.5", CVAR_ARCHIVE}; //johnfitz
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qpic_t *draw_disc;
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qpic_t *draw_backtile;
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gltexture_t *char_texture; //johnfitz
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qpic_t *pic_ovr, *pic_ins; //johnfitz -- new cursor handling
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qpic_t *pic_nul; //johnfitz -- for missing gfx, don't crash
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//johnfitz -- new pics
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byte pic_ovr_data[8][8] =
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{
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{255, 255, 255, 255, 255, 255, 255, 255},
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{255, 15, 15, 15, 15, 15, 15, 255},
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{255, 15, 15, 15, 15, 15, 15, 2},
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{255, 15, 15, 15, 15, 15, 15, 2},
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{255, 15, 15, 15, 15, 15, 15, 2},
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{255, 15, 15, 15, 15, 15, 15, 2},
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{255, 15, 15, 15, 15, 15, 15, 2},
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{255, 255, 2, 2, 2, 2, 2, 2},
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};
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byte pic_ins_data[9][8] =
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{
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{ 15, 15, 255, 255, 255, 255, 255, 255},
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{ 15, 15, 2, 255, 255, 255, 255, 255},
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{ 15, 15, 2, 255, 255, 255, 255, 255},
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{ 15, 15, 2, 255, 255, 255, 255, 255},
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{ 15, 15, 2, 255, 255, 255, 255, 255},
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{ 15, 15, 2, 255, 255, 255, 255, 255},
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{ 15, 15, 2, 255, 255, 255, 255, 255},
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{ 15, 15, 2, 255, 255, 255, 255, 255},
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{255, 2, 2, 255, 255, 255, 255, 255},
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};
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byte pic_nul_data[8][8] =
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{
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{252, 252, 252, 252, 0, 0, 0, 0},
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{252, 252, 252, 252, 0, 0, 0, 0},
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{252, 252, 252, 252, 0, 0, 0, 0},
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{252, 252, 252, 252, 0, 0, 0, 0},
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{ 0, 0, 0, 0, 252, 252, 252, 252},
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{ 0, 0, 0, 0, 252, 252, 252, 252},
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{ 0, 0, 0, 0, 252, 252, 252, 252},
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{ 0, 0, 0, 0, 252, 252, 252, 252},
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};
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byte pic_stipple_data[8][8] =
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{
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{255, 0, 0, 0, 255, 0, 0, 0},
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{ 0, 0, 255, 0, 0, 0, 255, 0},
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{255, 0, 0, 0, 255, 0, 0, 0},
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{ 0, 0, 255, 0, 0, 0, 255, 0},
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{255, 0, 0, 0, 255, 0, 0, 0},
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{ 0, 0, 255, 0, 0, 0, 255, 0},
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{255, 0, 0, 0, 255, 0, 0, 0},
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{ 0, 0, 255, 0, 0, 0, 255, 0},
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};
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byte pic_crosshair_data[8][8] =
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{
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{255, 255, 255, 255, 255, 255, 255, 255},
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{255, 255, 255, 8, 9, 255, 255, 255},
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{255, 255, 255, 6, 8, 2, 255, 255},
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{255, 6, 8, 8, 6, 8, 8, 255},
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{255, 255, 2, 8, 8, 2, 2, 2},
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{255, 255, 255, 7, 8, 2, 255, 255},
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{255, 255, 255, 255, 2, 2, 255, 255},
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{255, 255, 255, 255, 255, 255, 255, 255},
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};
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//johnfitz
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typedef struct
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{
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gltexture_t *gltexture;
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float sl, tl, sh, th;
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} glpic_t;
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canvastype currentcanvas = CANVAS_NONE; //johnfitz -- for GL_SetCanvas
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//==============================================================================
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//
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// PIC CACHING
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//
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//==============================================================================
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typedef struct cachepic_s
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{
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char name[MAX_QPATH];
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qpic_t pic;
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byte padding[32]; // for appended glpic
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} cachepic_t;
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#define MAX_CACHED_PICS 128
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cachepic_t menu_cachepics[MAX_CACHED_PICS];
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int32_t menu_numcachepics;
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byte menuplyr_pixels[4096];
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// scrap allocation
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// Allocate all the little status bar obejcts into a single texture
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// to crutch up stupid hardware / drivers
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#define MAX_SCRAPS 2
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#define BLOCK_WIDTH 256
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#define BLOCK_HEIGHT 256
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int32_t scrap_allocated[MAX_SCRAPS][BLOCK_WIDTH];
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byte scrap_texels[MAX_SCRAPS][BLOCK_WIDTH * BLOCK_HEIGHT]; //johnfitz -- removed *4 after BLOCK_HEIGHT
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bool scrap_dirty;
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gltexture_t *scrap_textures[MAX_SCRAPS]; //johnfitz
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/*
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================
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Scrap_AllocBlock
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returns an index into scrap_texnums[] and the position inside it
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================
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*/
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int32_t Scrap_AllocBlock(int32_t w, int32_t h, int32_t *x, int32_t *y)
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{
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int32_t i, j;
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int32_t best, best2;
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int32_t texnum;
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for(texnum = 0 ; texnum < MAX_SCRAPS ; texnum++)
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{
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best = BLOCK_HEIGHT;
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for(i = 0 ; i < BLOCK_WIDTH - w ; i++)
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{
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best2 = 0;
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for(j = 0 ; j < w ; j++)
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{
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if(scrap_allocated[texnum][i + j] >= best)
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break;
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if(scrap_allocated[texnum][i + j] > best2)
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best2 = scrap_allocated[texnum][i + j];
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}
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if(j == w)
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{
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// this is a valid spot
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*x = i;
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*y = best = best2;
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}
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}
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if(best + h > BLOCK_HEIGHT)
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continue;
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for(i = 0 ; i < w ; i++)
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scrap_allocated[texnum][*x + i] = best + h;
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return texnum;
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}
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Sys_Error("Scrap_AllocBlock: full"); //johnfitz -- correct function name
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return 0; //johnfitz -- shut up compiler
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}
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/*
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================
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Scrap_Upload -- johnfitz -- now uses TexMgr
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================
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*/
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void Scrap_Upload(void)
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{
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char name[8];
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int32_t i;
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for(i = 0; i < MAX_SCRAPS; i++)
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{
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sprintf(name, "scrap%" PRIi32, i);
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scrap_textures[i] = TexMgr_LoadImage(NULL, name, BLOCK_WIDTH, BLOCK_HEIGHT, SRC_INDEXED, scrap_texels[i], "", (src_offset_t)scrap_texels[i], TEXPREF_ALPHA | TEXPREF_OVERWRITE | TEXPREF_NOPICMIP);
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}
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scrap_dirty = false;
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}
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/*
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================
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Draw_PicFromWad
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================
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*/
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qpic_t *Draw_PicFromWad(const char *name)
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{
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qpic_t *p;
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glpic_t gl;
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src_offset_t offset; //johnfitz
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p = (qpic_t *) W_GetLumpName(name);
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if(!p) return pic_nul; //johnfitz
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// load little ones into the scrap
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if(p->width < 64 && p->height < 64)
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{
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int32_t x = 0, y = 0;
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int32_t i, j, k;
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int32_t texnum;
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texnum = Scrap_AllocBlock(p->width, p->height, &x, &y);
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scrap_dirty = true;
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k = 0;
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for(i = 0 ; i < p->height ; i++)
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{
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for(j = 0 ; j < p->width ; j++, k++)
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scrap_texels[texnum][(y + i)*BLOCK_WIDTH + x + j] = p->data[k];
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}
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gl.gltexture = scrap_textures[texnum]; //johnfitz -- changed to an array
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//johnfitz -- no longer go from 0.01 to 0.99
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gl.sl = x / (float)BLOCK_WIDTH;
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gl.sh = (x + p->width) / (float)BLOCK_WIDTH;
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gl.tl = y / (float)BLOCK_WIDTH;
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gl.th = (y + p->height) / (float)BLOCK_WIDTH;
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}
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else
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{
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char texturename[64]; //johnfitz
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q_snprintf(texturename, sizeof(texturename), "%s:%s", WADFILENAME, name); //johnfitz
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offset = (src_offset_t)p - (src_offset_t)wad_base + sizeof(int32_t) * 2; //johnfitz
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gl.gltexture = TexMgr_LoadImage(NULL, texturename, p->width, p->height, SRC_INDEXED, p->data, WADFILENAME,
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offset, TEXPREF_ALPHA | TEXPREF_PAD | TEXPREF_NOPICMIP); //johnfitz -- TexMgr
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gl.sl = 0;
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gl.sh = (float)p->width / (float)TexMgr_PadConditional(p->width); //johnfitz
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gl.tl = 0;
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gl.th = (float)p->height / (float)TexMgr_PadConditional(p->height); //johnfitz
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}
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memcpy(p->data, &gl, sizeof(glpic_t));
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return p;
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}
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/*
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================
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Draw_CachePic
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================
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*/
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qpic_t *Draw_CachePic(const char *path)
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{
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cachepic_t *pic;
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int32_t i;
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qpic_t *dat;
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glpic_t gl;
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for(pic = menu_cachepics, i = 0 ; i < menu_numcachepics ; pic++, i++)
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{
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if(!strcmp(path, pic->name))
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return &pic->pic;
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}
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if(menu_numcachepics == MAX_CACHED_PICS)
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Sys_Error("menu_numcachepics == MAX_CACHED_PICS");
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menu_numcachepics++;
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strcpy(pic->name, path);
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//
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// load the pic from disk
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//
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dat = (qpic_t *)COM_LoadTempFile(path, NULL);
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if(!dat)
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Sys_Error("Draw_CachePic: failed to load %s", path);
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SwapPic(dat);
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// HACK HACK HACK --- we need to keep the bytes for
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// the translatable player picture just for the menu
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// configuration dialog
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if(!strcmp(path, "gfx/menuplyr.lmp"))
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memcpy(menuplyr_pixels, dat->data, dat->width * dat->height);
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pic->pic.width = dat->width;
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pic->pic.height = dat->height;
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gl.gltexture = TexMgr_LoadImage(NULL, path, dat->width, dat->height, SRC_INDEXED, dat->data, path,
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sizeof(int32_t) * 2, TEXPREF_ALPHA | TEXPREF_PAD | TEXPREF_NOPICMIP); //johnfitz -- TexMgr
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gl.sl = 0;
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gl.sh = (float)dat->width / (float)TexMgr_PadConditional(dat->width); //johnfitz
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gl.tl = 0;
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gl.th = (float)dat->height / (float)TexMgr_PadConditional(dat->height); //johnfitz
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memcpy(pic->pic.data, &gl, sizeof(glpic_t));
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return &pic->pic;
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}
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/*
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================
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Draw_MakePic -- johnfitz -- generate pics from internal data
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================
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*/
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qpic_t *Draw_MakePic(const char *name, int32_t width, int32_t height, byte *data)
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{
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int32_t flags = TEXPREF_NEAREST | TEXPREF_ALPHA | TEXPREF_PERSIST | TEXPREF_NOPICMIP | TEXPREF_PAD;
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qpic_t *pic;
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glpic_t gl;
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pic = Hunk_AllocName(sizeof(qpic_t) - 4 + sizeof(glpic_t), __func__);
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pic->width = width;
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pic->height = height;
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gl.gltexture = TexMgr_LoadImage(NULL, name, width, height, SRC_INDEXED, data, "", (src_offset_t)data, flags);
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gl.sl = 0;
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gl.sh = (float)width / (float)TexMgr_PadConditional(width);
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gl.tl = 0;
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gl.th = (float)height / (float)TexMgr_PadConditional(height);
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memcpy(pic->data, &gl, sizeof(glpic_t));
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return pic;
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}
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//==============================================================================
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//
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// INIT
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//
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//==============================================================================
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/*
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===============
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Draw_LoadPics -- johnfitz
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===============
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*/
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void Draw_LoadPics(void)
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{
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byte *data;
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src_offset_t offset;
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data = (byte *) W_GetLumpName("conchars");
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if(!data) Sys_Error("Draw_LoadPics: couldn't load conchars");
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offset = (src_offset_t)data - (src_offset_t)wad_base;
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char_texture = TexMgr_LoadImage(NULL, WADFILENAME":conchars", 128, 128, SRC_INDEXED, data,
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WADFILENAME, offset, TEXPREF_ALPHA | TEXPREF_NEAREST | TEXPREF_NOPICMIP | TEXPREF_CONCHARS);
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draw_disc = Draw_PicFromWad("disc");
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draw_backtile = Draw_PicFromWad("backtile");
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}
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/*
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===============
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Draw_NewGame -- johnfitz
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===============
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*/
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void Draw_NewGame(void)
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{
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cachepic_t *pic;
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int32_t i;
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// empty scrap and reallocate gltextures
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memset(scrap_allocated, 0, sizeof(scrap_allocated));
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memset(scrap_texels, 255, sizeof(scrap_texels));
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Scrap_Upload(); //creates 2 empty gltextures
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// reload wad pics
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W_LoadWadFile(); //johnfitz -- filename is now hard-coded for honesty
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Draw_LoadPics();
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SCR_LoadPics();
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Sbar_LoadPics();
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// empty lmp cache
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for(pic = menu_cachepics, i = 0; i < menu_numcachepics; pic++, i++)
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pic->name[0] = 0;
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menu_numcachepics = 0;
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}
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/*
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===============
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Draw_Init -- johnfitz -- rewritten
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===============
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*/
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void Draw_Init(void)
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{
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Cvar_RegisterVariable(&scr_conalpha);
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// clear scrap and allocate gltextures
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memset(scrap_allocated, 0, sizeof(scrap_allocated));
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memset(scrap_texels, 255, sizeof(scrap_texels));
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Scrap_Upload(); //creates 2 empty textures
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// create internal pics
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pic_ins = Draw_MakePic("ins", 8, 9, &pic_ins_data[0][0]);
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pic_ovr = Draw_MakePic("ovr", 8, 8, &pic_ovr_data[0][0]);
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pic_nul = Draw_MakePic("nul", 8, 8, &pic_nul_data[0][0]);
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// load game pics
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Draw_LoadPics();
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}
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//==============================================================================
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//
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// 2D DRAWING
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//
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//==============================================================================
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/*
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================
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Draw_CharacterQuad -- johnfitz -- seperate function to spit out verts
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================
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*/
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void Draw_CharacterQuad(int32_t x, int32_t y, char num)
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{
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int32_t row, col;
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float frow, fcol, size;
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row = num >> 4;
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col = num & 15;
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frow = row * 0.0625;
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fcol = col * 0.0625;
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size = 0.0625;
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glTexCoord2f(fcol, frow);
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glVertex2f(x, y);
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glTexCoord2f(fcol + size, frow);
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glVertex2f(x + 8, y);
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glTexCoord2f(fcol + size, frow + size);
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glVertex2f(x + 8, y + 8);
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glTexCoord2f(fcol, frow + size);
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glVertex2f(x, y + 8);
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}
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/*
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================
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Draw_Character -- johnfitz -- modified to call Draw_CharacterQuad
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================
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*/
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void Draw_Character(int32_t x, int32_t y, int32_t num)
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{
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if(y <= -8)
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return; // totally off screen
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num &= 255;
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if(num == 32)
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return; //don't waste verts on spaces
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GL_Bind(char_texture);
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glBegin(GL_QUADS);
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Draw_CharacterQuad(x, y, (char) num);
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glEnd();
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}
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/*
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================
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Draw_String -- johnfitz -- modified to call Draw_CharacterQuad
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================
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*/
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void Draw_String(int32_t x, int32_t y, const char *str)
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{
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if(y <= -8)
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return; // totally off screen
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GL_Bind(char_texture);
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glBegin(GL_QUADS);
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while(*str)
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{
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if(*str != 32) //don't waste verts on spaces
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Draw_CharacterQuad(x, y, *str);
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str++;
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x += 8;
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}
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glEnd();
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}
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/*
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=============
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Draw_Pic -- johnfitz -- modified
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=============
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*/
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void Draw_Pic(int32_t x, int32_t y, qpic_t *pic)
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{
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glpic_t *gl;
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if(scrap_dirty)
|
|
Scrap_Upload();
|
|
gl = (glpic_t *)pic->data;
|
|
GL_Bind(gl->gltexture);
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(gl->sl, gl->tl);
|
|
glVertex2f(x, y);
|
|
glTexCoord2f(gl->sh, gl->tl);
|
|
glVertex2f(x + pic->width, y);
|
|
glTexCoord2f(gl->sh, gl->th);
|
|
glVertex2f(x + pic->width, y + pic->height);
|
|
glTexCoord2f(gl->sl, gl->th);
|
|
glVertex2f(x, y + pic->height);
|
|
glEnd();
|
|
}
|
|
|
|
/*
|
|
=============
|
|
Draw_TransPicTranslate -- johnfitz -- rewritten to use texmgr to do translation
|
|
|
|
Only used for the player color selection menu
|
|
=============
|
|
*/
|
|
void Draw_TransPicTranslate(int32_t x, int32_t y, qpic_t *pic, int32_t top, int32_t bottom)
|
|
{
|
|
static int32_t oldtop = -2;
|
|
static int32_t oldbottom = -2;
|
|
|
|
if(top != oldtop || bottom != oldbottom)
|
|
{
|
|
glpic_t *p = (glpic_t *)pic->data;
|
|
gltexture_t *glt = p->gltexture;
|
|
oldtop = top;
|
|
oldbottom = bottom;
|
|
TexMgr_ReloadImage(glt, top, bottom);
|
|
}
|
|
Draw_Pic(x, y, pic);
|
|
}
|
|
|
|
/*
|
|
================
|
|
Draw_ConsoleBackground -- johnfitz -- rewritten
|
|
================
|
|
*/
|
|
void Draw_ConsoleBackground(void)
|
|
{
|
|
qpic_t *pic;
|
|
float alpha;
|
|
|
|
pic = Draw_CachePic("gfx/conback.lmp");
|
|
pic->width = vid.conwidth;
|
|
pic->height = vid.conheight;
|
|
|
|
alpha = (con_forcedup) ? 1.0 : scr_conalpha.value;
|
|
|
|
GL_SetCanvas(CANVAS_CONSOLE); //in case this is called from weird places
|
|
|
|
if(alpha > 0.0)
|
|
{
|
|
if(alpha < 1.0)
|
|
{
|
|
glEnable(GL_BLEND);
|
|
glColor4f(1, 1, 1, alpha);
|
|
glDisable(GL_ALPHA_TEST);
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
|
}
|
|
|
|
Draw_Pic(0, 0, pic);
|
|
|
|
if(alpha < 1.0)
|
|
{
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
|
|
glEnable(GL_ALPHA_TEST);
|
|
glDisable(GL_BLEND);
|
|
glColor4f(1, 1, 1, 1);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
Draw_TileClear
|
|
|
|
This repeats a 64*64 tile graphic to fill the screen around a sized down
|
|
refresh window.
|
|
=============
|
|
*/
|
|
void Draw_TileClear(int32_t x, int32_t y, int32_t w, int32_t h)
|
|
{
|
|
glpic_t *gl;
|
|
|
|
gl = (glpic_t *)draw_backtile->data;
|
|
|
|
glColor3f(1, 1, 1);
|
|
GL_Bind(gl->gltexture);
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(x / 64.0, y / 64.0);
|
|
glVertex2f(x, y);
|
|
glTexCoord2f((x + w) / 64.0, y / 64.0);
|
|
glVertex2f(x + w, y);
|
|
glTexCoord2f((x + w) / 64.0, (y + h) / 64.0);
|
|
glVertex2f(x + w, y + h);
|
|
glTexCoord2f(x / 64.0, (y + h) / 64.0);
|
|
glVertex2f(x, y + h);
|
|
glEnd();
|
|
}
|
|
|
|
/*
|
|
=============
|
|
Draw_Fill
|
|
|
|
Fills a box of pixels with a single color
|
|
=============
|
|
*/
|
|
void Draw_Fill(int32_t x, int32_t y, int32_t w, int32_t h, int32_t c, float alpha) //johnfitz -- added alpha
|
|
{
|
|
byte *pal = (byte *)d_8to24table; //johnfitz -- use d_8to24table instead of host_basepal
|
|
|
|
glDisable(GL_TEXTURE_2D);
|
|
glEnable(GL_BLEND); //johnfitz -- for alpha
|
|
glDisable(GL_ALPHA_TEST); //johnfitz -- for alpha
|
|
glColor4f(pal[c * 4] / 255.0, pal[c * 4 + 1] / 255.0, pal[c * 4 + 2] / 255.0, alpha); //johnfitz -- added alpha
|
|
|
|
glBegin(GL_QUADS);
|
|
glVertex2f(x, y);
|
|
glVertex2f(x + w, y);
|
|
glVertex2f(x + w, y + h);
|
|
glVertex2f(x, y + h);
|
|
glEnd();
|
|
|
|
glColor3f(1, 1, 1);
|
|
glDisable(GL_BLEND); //johnfitz -- for alpha
|
|
glEnable(GL_ALPHA_TEST); //johnfitz -- for alpha
|
|
glEnable(GL_TEXTURE_2D);
|
|
}
|
|
|
|
/*
|
|
================
|
|
Draw_FadeScreen -- johnfitz -- revised
|
|
================
|
|
*/
|
|
void Draw_FadeScreen(void)
|
|
{
|
|
GL_SetCanvas(CANVAS_DEFAULT);
|
|
|
|
glEnable(GL_BLEND);
|
|
glDisable(GL_ALPHA_TEST);
|
|
glDisable(GL_TEXTURE_2D);
|
|
glColor4f(0, 0, 0, 0.5);
|
|
glBegin(GL_QUADS);
|
|
|
|
glVertex2f(0, 0);
|
|
glVertex2f(glwidth, 0);
|
|
glVertex2f(glwidth, glheight);
|
|
glVertex2f(0, glheight);
|
|
|
|
glEnd();
|
|
glColor4f(1, 1, 1, 1);
|
|
glEnable(GL_TEXTURE_2D);
|
|
glEnable(GL_ALPHA_TEST);
|
|
glDisable(GL_BLEND);
|
|
|
|
Sbar_Changed();
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_SetCanvas -- johnfitz -- support various canvas types
|
|
================
|
|
*/
|
|
void GL_SetCanvas(canvastype newcanvas)
|
|
{
|
|
extern vrect_t scr_vrect;
|
|
float s;
|
|
int32_t lines;
|
|
|
|
if(newcanvas == currentcanvas)
|
|
return;
|
|
|
|
currentcanvas = newcanvas;
|
|
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
|
|
switch(newcanvas)
|
|
{
|
|
case CANVAS_DEFAULT:
|
|
glOrtho(0, glwidth, glheight, 0, -99999, 99999);
|
|
glViewport(glx, gly, glwidth, glheight);
|
|
break;
|
|
case CANVAS_CONSOLE:
|
|
lines = vid.conheight - (scr_con_current * vid.conheight / glheight);
|
|
glOrtho(0, vid.conwidth, vid.conheight + lines, lines, -99999, 99999);
|
|
glViewport(glx, gly, glwidth, glheight);
|
|
break;
|
|
case CANVAS_MENU:
|
|
s = q_min((float)glwidth / 320.0, (float)glheight / 200.0);
|
|
s = CLAMP(1.0, scr_menuscale.value, s);
|
|
// ericw -- doubled width to 640 to accommodate long keybindings
|
|
glOrtho(0, 640, 200, 0, -99999, 99999);
|
|
glViewport(glx + (glwidth - 320 * s) / 2, gly + (glheight - 200 * s) / 2, 640 * s, 200 * s);
|
|
break;
|
|
case CANVAS_SBAR:
|
|
s = CLAMP(1.0, scr_sbarscale.value, (float)glwidth / 320.0);
|
|
if(cl.gametype == GAME_DEATHMATCH)
|
|
{
|
|
glOrtho(0, glwidth / s, 48, 0, -99999, 99999);
|
|
glViewport(glx, gly, glwidth, 48 * s);
|
|
}
|
|
else
|
|
{
|
|
glOrtho(0, 320, 48, 0, -99999, 99999);
|
|
glViewport(glx + (glwidth - 320 * s) / 2, gly, 320 * s, 48 * s);
|
|
}
|
|
break;
|
|
case CANVAS_WARPIMAGE:
|
|
glOrtho(0, 128, 0, 128, -99999, 99999);
|
|
glViewport(glx, gly + glheight - gl_warpimagesize, gl_warpimagesize, gl_warpimagesize);
|
|
break;
|
|
case CANVAS_CROSSHAIR: //0,0 is center of viewport
|
|
s = CLAMP(1.0, scr_crosshairscale.value, 10.0);
|
|
glOrtho(scr_vrect.width / -2 / s, scr_vrect.width / 2 / s, scr_vrect.height / 2 / s, scr_vrect.height / -2 / s, -99999, 99999);
|
|
glViewport(scr_vrect.x, glheight - scr_vrect.y - scr_vrect.height, scr_vrect.width & ~1, scr_vrect.height & ~1);
|
|
break;
|
|
case CANVAS_BOTTOMLEFT: //used by devstats
|
|
s = (float)glwidth / vid.conwidth; //use console scale
|
|
glOrtho(0, 320, 200, 0, -99999, 99999);
|
|
glViewport(glx, gly, 320 * s, 200 * s);
|
|
break;
|
|
case CANVAS_BOTTOMRIGHT: //used by fps/clock
|
|
s = (float)glwidth / vid.conwidth; //use console scale
|
|
glOrtho(0, 320, 200, 0, -99999, 99999);
|
|
glViewport(glx + glwidth - 320 * s, gly, 320 * s, 200 * s);
|
|
break;
|
|
case CANVAS_TOPRIGHT: //used by disc
|
|
s = 1;
|
|
glOrtho(0, 320, 200, 0, -99999, 99999);
|
|
glViewport(glx + glwidth - 320 * s, gly + glheight - 200 * s, 320 * s, 200 * s);
|
|
break;
|
|
default:
|
|
Sys_Error("GL_SetCanvas: bad canvas type");
|
|
}
|
|
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_Set2D -- johnfitz -- rewritten
|
|
================
|
|
*/
|
|
void GL_Set2D(void)
|
|
{
|
|
currentcanvas = CANVAS_INVALID;
|
|
GL_SetCanvas(CANVAS_DEFAULT);
|
|
|
|
glDisable(GL_DEPTH_TEST);
|
|
glDisable(GL_CULL_FACE);
|
|
glDisable(GL_BLEND);
|
|
glEnable(GL_ALPHA_TEST);
|
|
glColor4f(1, 1, 1, 1);
|
|
}
|