mirror of
https://github.com/libretro/libretro-tyrquake.git
synced 2024-12-04 22:46:59 +00:00
e51c621703
Signed-off-by: Kevin Shanahan <kmshanah@disenchant.net>
1383 lines
32 KiB
C
1383 lines
32 KiB
C
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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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 -- this is the only file outside the refresh that touches the
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// vid buffer
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#include "cmd.h"
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#include "console.h"
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#include "crc.h"
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#include "glquake.h"
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#include "quakedef.h"
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#include "sbar.h"
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#include "screen.h"
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#include "sys.h"
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#include "view.h"
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#include "wad.h"
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#ifdef NQ_HACK
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#include "host.h"
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#endif
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#ifdef QW_HACK
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#include "vid.h"
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#endif
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// FIXME - GL Header hacks for missing define on MinGW 3.1.0-1
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#if defined(_WIN32) && !defined(GL_COLOR_INDEX8_EXT)
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#define GL_COLOR_INDEX8_EXT 0x80E5
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#endif
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static cvar_t gl_nobind = { "gl_nobind", "0" };
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static cvar_t gl_picmip = { "gl_picmip", "0" };
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static cvar_t gl_constretch = { "gl_constretch", "0", true };
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// FIXME - should I let this get larger, with view to enhancements?
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cvar_t gl_max_size = { "gl_max_size", "1024" };
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byte *draw_chars; /* 8*8 graphic characters */
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qpic_t *draw_disc;
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static qpic_t *draw_backtile;
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static GLuint translate_texture;
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static GLuint char_texture;
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static GLuint cs_texture; // crosshair texture
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static byte cs_data[64] = {
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0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
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0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xff,
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0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
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};
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typedef struct {
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int texnum;
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float sl, tl, sh, th;
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} glpic_t;
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static byte conback_buffer[sizeof(qpic_t) + sizeof(glpic_t)];
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static qpic_t *conback = (qpic_t *)&conback_buffer;
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int gl_lightmap_format = GL_RGBA; // 4
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int gl_solid_format = GL_RGB; // 3
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int gl_alpha_format = GL_RGBA; // 4
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static int gl_filter_min = GL_LINEAR_MIPMAP_NEAREST;
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static int gl_filter_max = GL_LINEAR;
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typedef struct {
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GLuint texnum;
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char identifier[MAX_QPATH];
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int width, height;
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qboolean mipmap;
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unsigned short crc; // CRC for texture cache matching
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} gltexture_t;
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#define MAX_GLTEXTURES 1024
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static gltexture_t gltextures[MAX_GLTEXTURES];
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static int numgltextures;
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// FIXME - clean up forward declarations later (forward declare all?)
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static int GL_LoadPicTexture(const qpic_t *pic);
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void
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GL_Bind(int texnum)
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{
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if (gl_nobind.value)
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texnum = char_texture;
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if (currenttexture == texnum)
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return;
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currenttexture = texnum;
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#ifdef _WIN32
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bindTexFunc(GL_TEXTURE_2D, texnum);
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#else
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glBindTexture(GL_TEXTURE_2D, texnum);
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#endif
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}
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/*
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=============================================================================
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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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=============================================================================
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*/
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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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static int scrap_allocated[MAX_SCRAPS][BLOCK_WIDTH];
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static byte scrap_texels[MAX_SCRAPS][BLOCK_WIDTH * BLOCK_HEIGHT * 4];
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static qboolean scrap_dirty;
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static GLuint scrap_textures[MAX_SCRAPS];
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// returns a texture number and the position inside it
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static int
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Scrap_AllocBlock(int w, int h, int *x, int *y)
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{
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int i, j;
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int best, best2;
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int texnum;
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/*
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* I'm sure that x & y are always set when we return from this function,
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* but silence the compiler warning anyway. May as well crash with
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* these silly values if that happens.
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*/
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*x = *y = 0x818181;
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for (texnum = 0; texnum < MAX_SCRAPS; texnum++) {
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best = BLOCK_HEIGHT;
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for (i = 0; i < BLOCK_WIDTH - w; i++) {
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best2 = 0;
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for (j = 0; j < w; j++) {
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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) { // 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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if (*x == 0x818181 || *y == 0x818181)
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Sys_Error("%s: block allocation problem", __func__);
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return texnum;
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}
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Sys_Error("%s: full", __func__);
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}
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static void
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Scrap_Upload(void)
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{
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int texnum;
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for (texnum = 0; texnum < MAX_SCRAPS; ++texnum) {
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GL_Bind(scrap_textures[texnum]);
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GL_Upload8(scrap_texels[texnum], BLOCK_WIDTH, BLOCK_HEIGHT, false,
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true);
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}
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scrap_dirty = false;
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}
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//=============================================================================
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/* Support Routines */
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typedef struct cachepic_s {
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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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static cachepic_t menu_cachepics[MAX_CACHED_PICS];
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static int menu_numcachepics;
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static byte menuplyr_pixels[4096];
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static int pic_texels;
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static int pic_count;
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qpic_t *
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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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p = W_GetLumpName(name);
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gl = (glpic_t *)p->data;
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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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int x, y;
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int i, j, k;
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int 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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for (j = 0; j < p->width; j++, k++)
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scrap_texels[texnum][(y + i) * BLOCK_WIDTH + x + j] =
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p->data[k];
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gl->texnum = scrap_textures[texnum];
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gl->sl = (x + 0.01) / (float)BLOCK_WIDTH;
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gl->sh = (x + p->width - 0.01) / (float)BLOCK_WIDTH;
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gl->tl = (y + 0.01) / (float)BLOCK_WIDTH;
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gl->th = (y + p->height - 0.01) / (float)BLOCK_WIDTH;
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pic_count++;
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pic_texels += p->width * p->height;
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} else {
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gl->texnum = GL_LoadPicTexture(p);
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gl->sl = 0;
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gl->sh = 1;
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gl->tl = 0;
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gl->th = 1;
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}
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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 *
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Draw_CachePic(const char *path)
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{
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cachepic_t *pic;
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int 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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if (!strcmp(path, pic->name))
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return &pic->pic;
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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);
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if (!dat)
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Sys_Error("%s: failed to load %s", __func__, 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 = (glpic_t *)pic->pic.data;
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gl->texnum = GL_LoadPicTexture(dat);
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gl->sl = 0;
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gl->sh = 1;
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gl->tl = 0;
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gl->th = 1;
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return &pic->pic;
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}
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#define CHAR_WIDTH 8
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#define CHAR_HEIGHT 8
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static void
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Draw_ScaledCharToConback(qpic_t *conback, int num, byte *dest)
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{
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int row, col;
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byte *source, *src;
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int drawlines, drawwidth;
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int x, y, fstep, f;
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drawlines = conback->height * CHAR_HEIGHT / 200;
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drawwidth = conback->width * CHAR_WIDTH / 320;
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row = num >> 4;
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col = num & 15;
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source = draw_chars + (row << 10) + (col << 3);
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fstep = 320 * 0x10000 / conback->width;
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for (y = 0; y < drawlines; y++, dest += conback->width) {
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src = source + (y * CHAR_HEIGHT / drawlines) * 128;
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f = 0;
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for (x = 0; x < drawwidth; x++, f += fstep) {
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if (src[f >> 16] != 255)
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dest[x] = 0x60 + src[f >> 16];
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}
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}
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}
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/*
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* Draw_ConbackString
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*
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* This function draws a string to a very specific location on the console
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* background. The position is such that for a 320x200 background, the text
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* will be 6 pixels from the bottom and 11 pixels from the right. For other
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* sizes, the positioning is scaled so as to make it appear the same size and
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* at the same location.
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*/
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static void
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Draw_ConbackString(qpic_t *cb, char *str)
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{
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int len, row, col, x;
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byte *dest;
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len = strlen(str);
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row = cb->height - ((CHAR_HEIGHT + 6) * cb->height / 200);
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col = cb->width - ((11 + CHAR_WIDTH * len) * cb->width / 320);
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dest = cb->data + cb->width * row + col;
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for (x = 0; x < len; x++)
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Draw_ScaledCharToConback(cb, str[x],
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dest + (x * CHAR_WIDTH * cb->width / 320));
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}
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typedef struct {
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char *name;
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int minimize, maximize;
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} glmode_t;
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static glmode_t gl_texturemodes[] = {
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{"GL_NEAREST", GL_NEAREST, GL_NEAREST},
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{"GL_LINEAR", GL_LINEAR, GL_LINEAR},
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{"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
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{"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
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{"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
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{"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
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};
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/*
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===============
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Draw_TextureMode_f
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===============
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*/
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static void
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Draw_TextureMode_f(void)
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{
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int i;
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gltexture_t *glt;
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if (Cmd_Argc() == 1) {
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for (i = 0; i < 6; i++)
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if (gl_filter_min == gl_texturemodes[i].minimize) {
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Con_Printf("%s\n", gl_texturemodes[i].name);
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return;
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}
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Con_Printf("current filter is unknown???\n");
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return;
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}
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for (i = 0; i < 6; i++) {
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if (!strcasecmp(gl_texturemodes[i].name, Cmd_Argv(1)))
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break;
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}
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if (i == 6) {
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Con_Printf("bad filter name\n");
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return;
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}
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gl_filter_min = gl_texturemodes[i].minimize;
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gl_filter_max = gl_texturemodes[i].maximize;
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// change all the existing mipmap texture objects
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for (i = 0, glt = gltextures; i < numgltextures; i++, glt++) {
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if (glt->mipmap) {
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GL_Bind(glt->texnum);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
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gl_filter_min);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
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gl_filter_max);
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}
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}
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}
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/*
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===============
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Draw_Init
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===============
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*/
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void
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Draw_Init(void)
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{
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int i;
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qpic_t *cb;
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glpic_t *gl;
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int start;
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byte *ncdata;
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Cvar_RegisterVariable(&gl_nobind);
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Cvar_RegisterVariable(&gl_max_size);
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Cvar_RegisterVariable(&gl_picmip);
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Cvar_RegisterVariable(&gl_constretch);
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// FIXME - could do better to check on each texture upload with
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// GL_PROXY_TEXTURE_2D
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glGetIntegerv(GL_MAX_TEXTURE_SIZE, &i);
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if (gl_max_size.value > i) {
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char tmp[20];
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Con_DPrintf("Reducing gl_max_size from %i to %i\n",
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(int)gl_max_size.value, i);
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snprintf(tmp, 20, "%i", i);
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Cvar_Set("gl_max_size", tmp);
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}
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#if 0
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// 3dfx can only handle 256 wide textures
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// FIXME - remove when proper tex size queries working?
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if (!strncasecmp((char *)gl_renderer, "3dfx", 4) ||
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!strncasecmp((char *)gl_renderer, "Mesa", 4))
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Cvar_Set("gl_max_size", "256");
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#endif
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Cmd_AddCommand("gl_texturemode", &Draw_TextureMode_f);
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// load the console background and the charset
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// by hand, because we need to write the version
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// string into the background before turning
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// it into a texture
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draw_chars = W_GetLumpName("conchars");
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for (i = 0; i < 256 * 64; i++)
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if (draw_chars[i] == 0)
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draw_chars[i] = 255; // proper transparent color
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// now turn them into textures
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char_texture =
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GL_LoadTexture("charset", 128, 128, draw_chars, false, true);
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cs_texture = GL_LoadTexture("crosshair", 8, 8, cs_data, false, true);
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start = Hunk_LowMark();
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#ifdef NQ_HACK
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cb = (qpic_t *)COM_LoadTempFile("gfx/conback.lmp");
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#endif
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#ifdef QW_HACK
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cb = (qpic_t *)COM_LoadHunkFile("gfx/conback.lmp");
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#endif
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if (!cb)
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Sys_Error("Couldn't load gfx/conback.lmp");
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SwapPic(cb);
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/* hack the version number directly into the pic */
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Draw_ConbackString(cb, stringify(TYR_VERSION));
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conback->width = cb->width;
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conback->height = cb->height;
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ncdata = cb->data;
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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gl = (glpic_t *)conback->data;
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gl->texnum =
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GL_LoadTexture("conback", conback->width, conback->height, ncdata,
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false, false);
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gl->sl = 0;
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gl->sh = 1;
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gl->tl = 0;
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gl->th = 1;
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#ifdef NQ_HACK
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conback->width = vid.width;
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conback->height = vid.height;
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#endif
|
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#ifdef QW_HACK
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conback->width = vid.conwidth;
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conback->height = vid.conheight;
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#endif
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// free loaded console
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Hunk_FreeToLowMark(start);
|
|
|
|
// save a texture slot for translated picture
|
|
glGenTextures(1, &translate_texture);
|
|
|
|
// save slots for scraps
|
|
glGenTextures(MAX_SCRAPS, scrap_textures);
|
|
|
|
//
|
|
// get the other pics we need
|
|
//
|
|
draw_disc = Draw_PicFromWad("disc");
|
|
draw_backtile = Draw_PicFromWad("backtile");
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
================
|
|
Draw_Character
|
|
|
|
Draws one 8*8 graphics character with 0 being transparent.
|
|
It can be clipped to the top of the screen to allow the console to be
|
|
smoothly scrolled off.
|
|
================
|
|
*/
|
|
void
|
|
Draw_Character(int x, int y, int num)
|
|
{
|
|
int row, col;
|
|
float frow, fcol, size;
|
|
|
|
if (num == 32)
|
|
return; // space
|
|
|
|
num &= 255;
|
|
|
|
if (y <= -8)
|
|
return; // totally off screen
|
|
|
|
row = num >> 4;
|
|
col = num & 15;
|
|
|
|
frow = row * 0.0625;
|
|
fcol = col * 0.0625;
|
|
size = 0.0625;
|
|
|
|
GL_Bind(char_texture);
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(fcol, frow);
|
|
glVertex2f(x, y);
|
|
glTexCoord2f(fcol + size, frow);
|
|
glVertex2f(x + 8, y);
|
|
glTexCoord2f(fcol + size, frow + size);
|
|
glVertex2f(x + 8, y + 8);
|
|
glTexCoord2f(fcol, frow + size);
|
|
glVertex2f(x, y + 8);
|
|
glEnd();
|
|
}
|
|
|
|
/*
|
|
================
|
|
Draw_String
|
|
================
|
|
*/
|
|
void
|
|
Draw_String(int x, int y, const char *str)
|
|
{
|
|
while (*str) {
|
|
Draw_Character(x, y, *str);
|
|
str++;
|
|
x += 8;
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
Draw_Alt_String
|
|
================
|
|
*/
|
|
void
|
|
Draw_Alt_String(int x, int y, const char *str)
|
|
{
|
|
while (*str) {
|
|
Draw_Character(x, y, (*str) | 0x80);
|
|
str++;
|
|
x += 8;
|
|
}
|
|
}
|
|
|
|
void
|
|
Draw_Crosshair(void)
|
|
{
|
|
int x, y;
|
|
unsigned char *pColor;
|
|
|
|
if (crosshair.value == 2) {
|
|
x = scr_vrect.x + scr_vrect.width / 2 - 3 + cl_crossx.value;
|
|
y = scr_vrect.y + scr_vrect.height / 2 - 3 + cl_crossy.value;
|
|
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
|
pColor = (unsigned char *)&d_8to24table[(byte)crosshaircolor.value];
|
|
glColor4ubv(pColor);
|
|
GL_Bind(cs_texture);
|
|
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(0, 0);
|
|
glVertex2f(x - 4, y - 4);
|
|
glTexCoord2f(1, 0);
|
|
glVertex2f(x + 12, y - 4);
|
|
glTexCoord2f(1, 1);
|
|
glVertex2f(x + 12, y + 12);
|
|
glTexCoord2f(0, 1);
|
|
glVertex2f(x - 4, y + 12);
|
|
glEnd();
|
|
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
|
|
} else if (crosshair.value)
|
|
Draw_Character(scr_vrect.x + scr_vrect.width / 2 - 4 +
|
|
cl_crossx.value,
|
|
scr_vrect.y + scr_vrect.height / 2 - 4 +
|
|
cl_crossy.value, '+');
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
Draw_Pic
|
|
=============
|
|
*/
|
|
void
|
|
Draw_Pic(int x, int y, const qpic_t *pic)
|
|
{
|
|
glpic_t *gl;
|
|
|
|
if (scrap_dirty)
|
|
Scrap_Upload();
|
|
gl = (glpic_t *)pic->data;
|
|
glColor4f(1, 1, 1, 1);
|
|
GL_Bind(gl->texnum);
|
|
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();
|
|
}
|
|
|
|
void
|
|
Draw_SubPic(int x, int y, const qpic_t *pic, int srcx, int srcy, int width,
|
|
int height)
|
|
{
|
|
glpic_t *gl;
|
|
float newsl, newtl, newsh, newth;
|
|
float oldglwidth, oldglheight;
|
|
|
|
if (scrap_dirty)
|
|
Scrap_Upload();
|
|
gl = (glpic_t *)pic->data;
|
|
|
|
oldglwidth = gl->sh - gl->sl;
|
|
oldglheight = gl->th - gl->tl;
|
|
|
|
newsl = gl->sl + (srcx * oldglwidth) / pic->width;
|
|
newsh = newsl + (width * oldglwidth) / pic->width;
|
|
|
|
newtl = gl->tl + (srcy * oldglheight) / pic->height;
|
|
newth = newtl + (height * oldglheight) / pic->height;
|
|
|
|
glColor4f(1, 1, 1, 1);
|
|
GL_Bind(gl->texnum);
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(newsl, newtl);
|
|
glVertex2f(x, y);
|
|
glTexCoord2f(newsh, newtl);
|
|
glVertex2f(x + width, y);
|
|
glTexCoord2f(newsh, newth);
|
|
glVertex2f(x + width, y + height);
|
|
glTexCoord2f(newsl, newth);
|
|
glVertex2f(x, y + height);
|
|
glEnd();
|
|
}
|
|
|
|
/*
|
|
=============
|
|
Draw_TransPic
|
|
=============
|
|
*/
|
|
void
|
|
Draw_TransPic(int x, int y, const qpic_t *pic)
|
|
{
|
|
if (x < 0 || (unsigned)(x + pic->width) > vid.width ||
|
|
y < 0 || (unsigned)(y + pic->height) > vid.height) {
|
|
Sys_Error("%s: bad coordinates", __func__);
|
|
}
|
|
|
|
Draw_Pic(x, y, pic);
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
Draw_TransPicTranslate
|
|
|
|
Only used for the player color selection menu
|
|
=============
|
|
*/
|
|
void
|
|
Draw_TransPicTranslate(int x, int y, const qpic_t *pic, byte *translation)
|
|
{
|
|
int v, u;
|
|
unsigned trans[64 * 64], *dest;
|
|
byte *src;
|
|
int p;
|
|
|
|
GL_Bind(translate_texture);
|
|
|
|
dest = trans;
|
|
for (v = 0; v < 64; v++, dest += 64) {
|
|
src = &menuplyr_pixels[((v * pic->height) >> 6) * pic->width];
|
|
for (u = 0; u < 64; u++) {
|
|
p = src[(u * pic->width) >> 6];
|
|
if (p == 255)
|
|
dest[u] = p;
|
|
else
|
|
dest[u] = d_8to24table[translation[p]];
|
|
}
|
|
}
|
|
|
|
glTexImage2D(GL_TEXTURE_2D, 0, gl_alpha_format, 64, 64, 0, GL_RGBA,
|
|
GL_UNSIGNED_BYTE, trans);
|
|
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
|
|
glColor3f(1, 1, 1);
|
|
glBegin(GL_QUADS);
|
|
glTexCoord2f(0, 0);
|
|
glVertex2f(x, y);
|
|
glTexCoord2f(1, 0);
|
|
glVertex2f(x + pic->width, y);
|
|
glTexCoord2f(1, 1);
|
|
glVertex2f(x + pic->width, y + pic->height);
|
|
glTexCoord2f(0, 1);
|
|
glVertex2f(x, y + pic->height);
|
|
glEnd();
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
Draw_ConsoleBackground
|
|
|
|
================
|
|
*/
|
|
static void
|
|
Draw_ConsolePic(int lines, float offset, const qpic_t *pic, float alpha)
|
|
{
|
|
glpic_t *gl;
|
|
|
|
if (scrap_dirty)
|
|
Scrap_Upload();
|
|
gl = (glpic_t *)pic->data;
|
|
|
|
glDisable(GL_ALPHA_TEST);
|
|
glEnable(GL_BLEND);
|
|
glCullFace(GL_FRONT);
|
|
glColor4f(1, 1, 1, alpha);
|
|
GL_Bind(gl->texnum);
|
|
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f (0, offset);
|
|
glVertex2f (0, 0);
|
|
glTexCoord2f (1, offset);
|
|
glVertex2f (vid.conwidth, 0);
|
|
glTexCoord2f (1, 1);
|
|
glVertex2f (vid.conwidth, lines);
|
|
glTexCoord2f (0, 1);
|
|
glVertex2f (0, lines);
|
|
glEnd();
|
|
|
|
glColor4f(1, 1, 1, 1);
|
|
glEnable(GL_ALPHA_TEST);
|
|
glDisable(GL_BLEND);
|
|
}
|
|
|
|
void
|
|
Draw_ConsoleBackground(int lines)
|
|
{
|
|
int y;
|
|
float offset, alpha;
|
|
|
|
y = (vid.height * 3) >> 2;
|
|
|
|
if (gl_constretch.value)
|
|
offset = 0.0f;
|
|
else
|
|
offset = (vid.conheight - lines) / (float)vid.conheight;
|
|
|
|
if (lines > y)
|
|
alpha = 1.0f;
|
|
else
|
|
alpha = (float) 1.1 * lines / y;
|
|
|
|
Draw_ConsolePic(lines, offset, conback, alpha);
|
|
|
|
#ifdef QW_HACK
|
|
{
|
|
char ver[40];
|
|
int x, i;
|
|
|
|
// hack the version number directly into the pic
|
|
y = lines - 14;
|
|
if (!cls.download) {
|
|
sprintf(ver, "TyrQuake (%s) QuakeWorld", stringify(TYR_VERSION));
|
|
x = vid.conwidth - (strlen(ver) * 8 + 11) -
|
|
(vid.conwidth * 8 / conback->width) * 7;
|
|
for (i = 0; i < strlen(ver); i++)
|
|
Draw_Character(x + i * 8, y, ver[i] | 0x80);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
Draw_TileClear
|
|
|
|
This repeats a 64*64 tile graphic to fill the screen around a sized down
|
|
refresh window.
|
|
=============
|
|
*/
|
|
void
|
|
Draw_TileClear(int x, int y, int w, int h)
|
|
{
|
|
const glpic_t *gl = (glpic_t *)draw_backtile->data;
|
|
|
|
glColor3f(1, 1, 1);
|
|
GL_Bind(gl->texnum);
|
|
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(int x, int y, int w, int h, int c)
|
|
{
|
|
glDisable(GL_TEXTURE_2D);
|
|
glColor3f(host_basepal[c * 3] / 255.0,
|
|
host_basepal[c * 3 + 1] / 255.0,
|
|
host_basepal[c * 3 + 2] / 255.0);
|
|
|
|
glBegin(GL_QUADS);
|
|
|
|
glVertex2f(x, y);
|
|
glVertex2f(x + w, y);
|
|
glVertex2f(x + w, y + h);
|
|
glVertex2f(x, y + h);
|
|
|
|
glEnd();
|
|
glColor3f(1, 1, 1);
|
|
glEnable(GL_TEXTURE_2D);
|
|
}
|
|
|
|
//=============================================================================
|
|
|
|
/*
|
|
================
|
|
Draw_FadeScreen
|
|
|
|
================
|
|
*/
|
|
void
|
|
Draw_FadeScreen(void)
|
|
{
|
|
glEnable(GL_BLEND);
|
|
glDisable(GL_TEXTURE_2D);
|
|
glColor4f(0, 0, 0, 0.8);
|
|
glBegin(GL_QUADS);
|
|
|
|
glVertex2f(0, 0);
|
|
glVertex2f(vid.width, 0);
|
|
glVertex2f(vid.width, vid.height);
|
|
glVertex2f(0, vid.height);
|
|
|
|
glEnd();
|
|
glColor4f(1, 1, 1, 1);
|
|
glEnable(GL_TEXTURE_2D);
|
|
glDisable(GL_BLEND);
|
|
|
|
Sbar_Changed();
|
|
}
|
|
|
|
//=============================================================================
|
|
|
|
/*
|
|
================
|
|
Draw_BeginDisc
|
|
|
|
Draws the little blue disc in the corner of the screen.
|
|
Call before beginning any disc IO.
|
|
================
|
|
*/
|
|
void
|
|
Draw_BeginDisc(void)
|
|
{
|
|
if (!draw_disc)
|
|
return;
|
|
glDrawBuffer(GL_FRONT);
|
|
Draw_Pic(vid.width - 24, 0, draw_disc);
|
|
glDrawBuffer(GL_BACK);
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
Draw_EndDisc
|
|
|
|
Erases the disc icon.
|
|
Call after completing any disc IO
|
|
================
|
|
*/
|
|
void
|
|
Draw_EndDisc(void)
|
|
{
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_Set2D
|
|
|
|
Setup as if the screen was 320*200
|
|
================
|
|
*/
|
|
void
|
|
GL_Set2D(void)
|
|
{
|
|
glViewport(glx, gly, glwidth, glheight);
|
|
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
glOrtho(0, vid.width, vid.height, 0, -99999, 99999);
|
|
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
|
|
glDisable(GL_DEPTH_TEST);
|
|
glDisable(GL_CULL_FACE);
|
|
glDisable(GL_BLEND);
|
|
glEnable(GL_ALPHA_TEST);
|
|
// glDisable(GL_ALPHA_TEST);
|
|
|
|
glColor4f(1, 1, 1, 1);
|
|
}
|
|
|
|
//====================================================================
|
|
|
|
/*
|
|
================
|
|
GL_FindTexture
|
|
================
|
|
*/
|
|
int
|
|
GL_FindTexture(const char *identifier)
|
|
{
|
|
int i;
|
|
gltexture_t *glt;
|
|
|
|
for (i = 0, glt = gltextures; i < numgltextures; i++, glt++) {
|
|
if (!strcmp(identifier, glt->identifier))
|
|
return gltextures[i].texnum;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_ResampleTexture
|
|
================
|
|
*/
|
|
static void
|
|
GL_ResampleTexture(const unsigned *in, int inwidth, int inheight,
|
|
unsigned *out, int outwidth, int outheight)
|
|
{
|
|
int i, j;
|
|
const unsigned *inrow;
|
|
unsigned frac, fracstep;
|
|
|
|
fracstep = inwidth * 0x10000 / outwidth;
|
|
for (i = 0; i < outheight; i++, out += outwidth) {
|
|
inrow = in + inwidth * (i * inheight / outheight);
|
|
frac = fracstep >> 1;
|
|
for (j = 0; j < outwidth; j += 4) {
|
|
out[j] = inrow[frac >> 16];
|
|
frac += fracstep;
|
|
out[j + 1] = inrow[frac >> 16];
|
|
frac += fracstep;
|
|
out[j + 2] = inrow[frac >> 16];
|
|
frac += fracstep;
|
|
out[j + 3] = inrow[frac >> 16];
|
|
frac += fracstep;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_Resample8BitTexture -- JACK
|
|
================
|
|
*/
|
|
static void
|
|
GL_Resample8BitTexture(const unsigned char *in, int inwidth, int inheight,
|
|
unsigned char *out, int outwidth, int outheight)
|
|
{
|
|
int i, j;
|
|
const unsigned char *inrow;
|
|
unsigned frac, fracstep;
|
|
|
|
fracstep = inwidth * 0x10000 / outwidth;
|
|
for (i = 0; i < outheight; i++, out += outwidth) {
|
|
inrow = in + inwidth * (i * inheight / outheight);
|
|
frac = fracstep >> 1;
|
|
for (j = 0; j < outwidth; j += 4) {
|
|
out[j] = inrow[frac >> 16];
|
|
frac += fracstep;
|
|
out[j + 1] = inrow[frac >> 16];
|
|
frac += fracstep;
|
|
out[j + 2] = inrow[frac >> 16];
|
|
frac += fracstep;
|
|
out[j + 3] = inrow[frac >> 16];
|
|
frac += fracstep;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_MipMap
|
|
|
|
Operates in place, quartering the size of the texture
|
|
================
|
|
*/
|
|
static void
|
|
GL_MipMap(byte *in, int width, int height)
|
|
{
|
|
int i, j;
|
|
byte *out;
|
|
|
|
width <<= 2;
|
|
height >>= 1;
|
|
out = in;
|
|
for (i = 0; i < height; i++, in += width) {
|
|
for (j = 0; j < width; j += 8, out += 4, in += 8) {
|
|
out[0] = (in[0] + in[4] + in[width + 0] + in[width + 4]) >> 2;
|
|
out[1] = (in[1] + in[5] + in[width + 1] + in[width + 5]) >> 2;
|
|
out[2] = (in[2] + in[6] + in[width + 2] + in[width + 6]) >> 2;
|
|
out[3] = (in[3] + in[7] + in[width + 3] + in[width + 7]) >> 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_MipMap8Bit
|
|
|
|
Mipping for 8 bit textures
|
|
================
|
|
*/
|
|
static void
|
|
GL_MipMap8Bit(byte *in, int width, int height)
|
|
{
|
|
int i, j;
|
|
unsigned short r, g, b;
|
|
byte *out, *at1, *at2, *at3, *at4;
|
|
|
|
height >>= 1;
|
|
out = in;
|
|
for (i = 0; i < height; i++, in += width) {
|
|
for (j = 0; j < width; j += 2, out += 1, in += 2) {
|
|
at1 = (byte *)(d_8to24table + in[0]);
|
|
at2 = (byte *)(d_8to24table + in[1]);
|
|
at3 = (byte *)(d_8to24table + in[width + 0]);
|
|
at4 = (byte *)(d_8to24table + in[width + 1]);
|
|
|
|
r = (at1[0] + at2[0] + at3[0] + at4[0]);
|
|
r >>= 5;
|
|
g = (at1[1] + at2[1] + at3[1] + at4[1]);
|
|
g >>= 5;
|
|
b = (at1[2] + at2[2] + at3[2] + at4[2]);
|
|
b >>= 5;
|
|
|
|
out[0] = d_15to8table[(r << 0) + (g << 5) + (b << 10)];
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
===============
|
|
GL_Upload32
|
|
===============
|
|
*/
|
|
void
|
|
GL_Upload32(const unsigned *data, int width, int height, qboolean mipmap,
|
|
qboolean alpha)
|
|
{
|
|
int samples;
|
|
static unsigned scaled[1024 * 512]; // [512*256];
|
|
int scaled_width, scaled_height;
|
|
|
|
for (scaled_width = 1; scaled_width < width; scaled_width <<= 1);
|
|
for (scaled_height = 1; scaled_height < height; scaled_height <<= 1);
|
|
|
|
scaled_width >>= (int)gl_picmip.value;
|
|
scaled_height >>= (int)gl_picmip.value;
|
|
|
|
if (scaled_width > gl_max_size.value)
|
|
scaled_width = gl_max_size.value;
|
|
if (scaled_height > gl_max_size.value)
|
|
scaled_height = gl_max_size.value;
|
|
|
|
if (scaled_width * scaled_height > sizeof(scaled) / 4)
|
|
Sys_Error("%s: too big", __func__);
|
|
|
|
samples = alpha ? gl_alpha_format : gl_solid_format;
|
|
if (scaled_width == width && scaled_height == height) {
|
|
if (!mipmap) {
|
|
glTexImage2D(GL_TEXTURE_2D, 0, samples, scaled_width,
|
|
scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, data);
|
|
goto done;
|
|
}
|
|
memcpy(scaled, data, width * height * 4);
|
|
} else
|
|
GL_ResampleTexture(data, width, height, scaled, scaled_width,
|
|
scaled_height);
|
|
|
|
glTexImage2D(GL_TEXTURE_2D, 0, samples, scaled_width, scaled_height, 0,
|
|
GL_RGBA, GL_UNSIGNED_BYTE, scaled);
|
|
|
|
if (mipmap) {
|
|
int miplevel;
|
|
|
|
miplevel = 0;
|
|
while (scaled_width > 1 || scaled_height > 1) {
|
|
GL_MipMap((byte *)scaled, scaled_width, scaled_height);
|
|
scaled_width >>= 1;
|
|
scaled_height >>= 1;
|
|
if (scaled_width < 1)
|
|
scaled_width = 1;
|
|
if (scaled_height < 1)
|
|
scaled_height = 1;
|
|
miplevel++;
|
|
glTexImage2D(GL_TEXTURE_2D, miplevel, samples, scaled_width,
|
|
scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
|
|
}
|
|
}
|
|
|
|
done:
|
|
if (mipmap) {
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
} else {
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
}
|
|
}
|
|
|
|
void
|
|
GL_Upload8_EXT(const byte *data, int width, int height, qboolean mipmap)
|
|
{
|
|
static unsigned char scaled[1024 * 512]; // [512*256];
|
|
int scaled_width, scaled_height;
|
|
|
|
for (scaled_width = 1; scaled_width < width; scaled_width <<= 1);
|
|
for (scaled_height = 1; scaled_height < height; scaled_height <<= 1);
|
|
|
|
scaled_width >>= (int)gl_picmip.value;
|
|
scaled_height >>= (int)gl_picmip.value;
|
|
|
|
if (scaled_width > gl_max_size.value)
|
|
scaled_width = gl_max_size.value;
|
|
if (scaled_height > gl_max_size.value)
|
|
scaled_height = gl_max_size.value;
|
|
|
|
if (scaled_width * scaled_height > sizeof(scaled))
|
|
Sys_Error("%s: too big", __func__);
|
|
|
|
if (scaled_width == width && scaled_height == height) {
|
|
if (!mipmap) {
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, scaled_width,
|
|
scaled_height, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE,
|
|
data);
|
|
goto done;
|
|
}
|
|
memcpy(scaled, data, width * height);
|
|
} else
|
|
GL_Resample8BitTexture(data, width, height, scaled, scaled_width,
|
|
scaled_height);
|
|
|
|
glTexImage2D(GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, scaled_width,
|
|
scaled_height, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, scaled);
|
|
if (mipmap) {
|
|
int miplevel;
|
|
|
|
miplevel = 0;
|
|
while (scaled_width > 1 || scaled_height > 1) {
|
|
GL_MipMap8Bit((byte *)scaled, scaled_width, scaled_height);
|
|
scaled_width >>= 1;
|
|
scaled_height >>= 1;
|
|
if (scaled_width < 1)
|
|
scaled_width = 1;
|
|
if (scaled_height < 1)
|
|
scaled_height = 1;
|
|
miplevel++;
|
|
glTexImage2D(GL_TEXTURE_2D, miplevel, GL_COLOR_INDEX8_EXT,
|
|
scaled_width, scaled_height, 0, GL_COLOR_INDEX,
|
|
GL_UNSIGNED_BYTE, scaled);
|
|
}
|
|
}
|
|
done:
|
|
|
|
if (mipmap) {
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
} else {
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
}
|
|
}
|
|
|
|
/*
|
|
===============
|
|
GL_Upload8
|
|
===============
|
|
*/
|
|
void
|
|
GL_Upload8(const byte *data, int width, int height, qboolean mipmap,
|
|
qboolean alpha)
|
|
{
|
|
static unsigned trans[640 * 480]; // FIXME, temporary
|
|
int i, s;
|
|
qboolean noalpha;
|
|
int p;
|
|
|
|
s = width * height;
|
|
// if there are no transparent pixels, make it a 3 component
|
|
// texture even if it was specified as otherwise
|
|
if (alpha) {
|
|
noalpha = true;
|
|
for (i = 0; i < s; i++) {
|
|
p = data[i];
|
|
if (p == 255)
|
|
noalpha = false;
|
|
trans[i] = d_8to24table[p];
|
|
}
|
|
|
|
if (alpha && noalpha)
|
|
alpha = false;
|
|
} else {
|
|
if (s & 3)
|
|
Sys_Error("%s: s&3", __func__);
|
|
for (i = 0; i < s; i += 4) {
|
|
trans[i] = d_8to24table[data[i]];
|
|
trans[i + 1] = d_8to24table[data[i + 1]];
|
|
trans[i + 2] = d_8to24table[data[i + 2]];
|
|
trans[i + 3] = d_8to24table[data[i + 3]];
|
|
}
|
|
}
|
|
|
|
if (VID_Is8bit() && !alpha && (data != scrap_texels[0])) {
|
|
GL_Upload8_EXT(data, width, height, mipmap);
|
|
return;
|
|
}
|
|
GL_Upload32(trans, width, height, mipmap, alpha);
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_LoadTexture
|
|
================
|
|
*/
|
|
int
|
|
GL_LoadTexture(const char *identifier, int width, int height,
|
|
const byte *data, qboolean mipmap, qboolean alpha)
|
|
{
|
|
int i;
|
|
gltexture_t *glt;
|
|
unsigned short crc;
|
|
|
|
crc = CRC_Block(data, width * height);
|
|
|
|
// see if the texture is already present
|
|
if (identifier[0]) {
|
|
for (i = 0, glt = gltextures; i < numgltextures; i++, glt++) {
|
|
if (!strcmp(identifier, glt->identifier)) {
|
|
if (crc != glt->crc
|
|
|| width != glt->width || height != glt->height)
|
|
goto GL_LoadTexture_setup;
|
|
else
|
|
return glt->texnum;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (numgltextures == MAX_GLTEXTURES)
|
|
Sys_Error("numgltextures == MAX_GLTEXTURES");
|
|
|
|
glt = &gltextures[numgltextures];
|
|
numgltextures++;
|
|
|
|
strncpy(glt->identifier, identifier, sizeof(glt->identifier) - 1);
|
|
glt->identifier[sizeof(glt->identifier) - 1] = '\0';
|
|
|
|
glGenTextures(1, &glt->texnum);
|
|
|
|
GL_LoadTexture_setup:
|
|
glt->crc = crc;
|
|
glt->width = width;
|
|
glt->height = height;
|
|
glt->mipmap = mipmap;
|
|
|
|
#ifdef NQ_HACK
|
|
if (!isDedicated) {
|
|
GL_Bind(glt->texnum);
|
|
GL_Upload8(data, width, height, mipmap, alpha);
|
|
}
|
|
#else
|
|
GL_Bind(glt->texnum);
|
|
GL_Upload8(data, width, height, mipmap, alpha);
|
|
#endif
|
|
|
|
return glt->texnum;
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_LoadPicTexture
|
|
================
|
|
*/
|
|
static int
|
|
GL_LoadPicTexture(const qpic_t *pic)
|
|
{
|
|
return GL_LoadTexture("", pic->width, pic->height, pic->data, false,
|
|
true);
|
|
}
|