fteqw/engine/client/r_2d.c
Spoike fcba94f554 Merging D3D and GL renderers a little.
D3D should be functional now. Maybe not pretty, maybe not complete, maybe not correct, but at least playable, at least with classic particles.
Some download fixes.
Some q3vm 64bit fixes.
Removed some dead cvars.

git-svn-id: https://svn.code.sf.net/p/fteqw/code/branches/wip@3614 fc73d0e0-1445-4013-8a0c-d673dee63da5
2010-11-02 23:17:25 +00:00

432 lines
9.4 KiB
C

#include "quakedef.h"
#ifndef SERVERONLY
#include "shader.h"
#include "gl_draw.h"
texid_t missing_texture;
static mpic_t *conback;
static mpic_t *draw_backtile;
static mpic_t *draw_fill, *draw_fill_trans;
mpic_t *draw_disc;
shader_t *shader_brighten;
shader_t *shader_polyblend;
static mesh_t draw_mesh;
static vecV_t draw_mesh_xyz[4];
static vec2_t draw_mesh_st[4];
static avec4_t draw_mesh_colors[4];
index_t r_quad_indexes[6] = {0, 1, 2, 2, 3, 0};
extern cvar_t scr_conalpha;
extern cvar_t gl_conback;
extern cvar_t gl_font;
extern cvar_t gl_contrast;
extern cvar_t vid_conautoscale;
void R2D_Font_Callback(struct cvar_s *var, char *oldvalue);
//We need this for minor things though, so we'll just use the slow accurate method.
//this is unlikly to be called too often.
qbyte GetPaletteIndex(int red, int green, int blue)
{
//slow, horrible method.
{
int i, best=15;
int bestdif=256*256*256, curdif;
extern qbyte *host_basepal;
qbyte *pa;
#define _abs(x) ((x)*(x))
pa = host_basepal;
for (i = 0; i < 256; i++, pa+=3)
{
curdif = _abs(red - pa[0]) + _abs(green - pa[1]) + _abs(blue - pa[2]);
if (curdif < bestdif)
{
if (curdif<1)
return i;
bestdif = curdif;
best = i;
}
}
return best;
}
}
/*
Iniitalise the 2d rendering functions (including font).
Image loading code must be ready for use at this point.
*/
void R2D_Init(void)
{
conback = NULL;
Shader_Init();
BE_Init();
draw_mesh.istrifan = true;
draw_mesh.numvertexes = 4;
draw_mesh.numindexes = 6;
draw_mesh.xyz_array = draw_mesh_xyz;
draw_mesh.st_array = draw_mesh_st;
draw_mesh.colors4f_array = draw_mesh_colors;
draw_mesh.indexes = r_quad_indexes;
Font_Init();
#pragma message("Fixme: move conwidth handling into here")
missing_texture = R_LoadTexture8("no_texture", 16, 16, (unsigned char*)r_notexture_mip + r_notexture_mip->offsets[0], IF_NOALPHA|IF_NOGAMMA, 0);
draw_backtile = Draw_SafePicFromWad ("backtile");
if (!draw_backtile)
draw_backtile = Draw_SafeCachePic ("gfx/menu/backtile.lmp");
draw_fill = R_RegisterShader("fill_opaque",
"{\n"
"{\n"
"map $whiteimage\n"
"rgbgen vertex\n"
"}\n"
"}\n");
draw_fill_trans = R_RegisterShader("fill_trans",
"{\n"
"{\n"
"map $whiteimage\n"
"rgbgen vertex\n"
"alphagen vertex\n"
"blendfunc blend\n"
"}\n"
"}\n");
shader_brighten = R_RegisterShader("constrastshader",
"{\n"
"{\n"
"map $whiteimage\n"
"blendfunc gl_dst_color gl_one\n"
"rgbgen vertex\n"
"alphagen vertex\n"
"}\n"
"}\n"
);
shader_polyblend = R_RegisterShader("polyblendshader",
"{\n"
"{\n"
"map $whiteimage\n"
"blendfunc gl_src_alpha gl_one_minus_src_alpha\n"
"rgbgen vertex\n"
"alphagen vertex\n"
"}\n"
"}\n"
);
Cvar_Hook(&gl_font, R2D_Font_Callback);
Cvar_ForceCallback(&gl_conback);
Cvar_ForceCallback(&vid_conautoscale);
Cvar_ForceCallback(&gl_font);
}
mpic_t *R2D_SafeCachePic (char *path)
{
shader_t *s = R_RegisterPic(path);
if (s->width)
return s;
return NULL;
}
char *failedpic; //easier this way
mpic_t *R2D_SafePicFromWad (char *name)
{
char newname[32];
shader_t *s;
snprintf(newname, sizeof(newname), "gfx/%s.lmp", name);
s = R_RegisterPic(newname);
if (s->width)
return s;
failedpic = name;
return NULL;
}
void R2D_ImageColours(float r, float g, float b, float a)
{
draw_mesh_colors[0][0] = r;
draw_mesh_colors[0][1] = g;
draw_mesh_colors[0][2] = b;
draw_mesh_colors[0][3] = a;
Vector4Copy(draw_mesh_colors[0], draw_mesh_colors[1]);
Vector4Copy(draw_mesh_colors[0], draw_mesh_colors[2]);
Vector4Copy(draw_mesh_colors[0], draw_mesh_colors[3]);
}
void R2D_ImagePaletteColour(unsigned int i, float a)
{
draw_mesh_colors[0][0] = host_basepal[i*3+0]/255;
draw_mesh_colors[0][1] = host_basepal[i*3+1]/255;
draw_mesh_colors[0][2] = host_basepal[i*3+2]/255;
draw_mesh_colors[0][3] = a;
Vector4Copy(draw_mesh_colors[0], draw_mesh_colors[1]);
Vector4Copy(draw_mesh_colors[0], draw_mesh_colors[2]);
Vector4Copy(draw_mesh_colors[0], draw_mesh_colors[3]);
}
//awkward and weird to use
void R2D_Image(float x, float y, float w, float h, float s1, float t1, float s2, float t2, mpic_t *pic)
{
if (!pic)
return;
/*
if (w == 0 && h == 0)
{
w = pic->width;
h = pic->height;
}
*/
draw_mesh_xyz[0][0] = x;
draw_mesh_xyz[0][1] = y;
draw_mesh_st[0][0] = s1;
draw_mesh_st[0][1] = t1;
draw_mesh_xyz[1][0] = x+w;
draw_mesh_xyz[1][1] = y;
draw_mesh_st[1][0] = s2;
draw_mesh_st[1][1] = t1;
draw_mesh_xyz[2][0] = x+w;
draw_mesh_xyz[2][1] = y+h;
draw_mesh_st[2][0] = s2;
draw_mesh_st[2][1] = t2;
draw_mesh_xyz[3][0] = x;
draw_mesh_xyz[3][1] = y+h;
draw_mesh_st[3][0] = s1;
draw_mesh_st[3][1] = t2;
BE_DrawMesh_Single(pic, &draw_mesh, NULL, &pic->defaulttextures);
}
/*draws a block of the current colour on the screen*/
void R2D_FillBlock(int x, int y, int w, int h)
{
draw_mesh_xyz[0][0] = x;
draw_mesh_xyz[0][1] = y;
draw_mesh_xyz[1][0] = x+w;
draw_mesh_xyz[1][1] = y;
draw_mesh_xyz[2][0] = x+w;
draw_mesh_xyz[2][1] = y+h;
draw_mesh_xyz[3][0] = x;
draw_mesh_xyz[3][1] = y+h;
if (draw_mesh_colors[0][3] != 1)
BE_DrawMesh_Single(draw_fill_trans, &draw_mesh, NULL, &draw_fill_trans->defaulttextures);
else
BE_DrawMesh_Single(draw_fill, &draw_mesh, NULL, &draw_fill->defaulttextures);
}
void R2D_ScalePic (int x, int y, int width, int height, mpic_t *pic)
{
R2D_Image(x, y, width, height, 0, 0, 1, 1, pic);
}
void R2D_SubPic(int x, int y, int width, int height, mpic_t *pic, int srcx, int srcy, int srcwidth, int srcheight)
{
float newsl, newtl, newsh, newth;
newsl = (srcx)/(float)srcwidth;
newsh = newsl + (width)/(float)srcwidth;
newtl = (srcy)/(float)srcheight;
newth = newtl + (height)/(float)srcheight;
R2D_Image(x, y, width, height, newsl, newtl, newsh, newth, pic);
}
/*
================
Draw_ConsoleBackground
================
*/
void R2D_ConsoleBackground (int firstline, int lastline, qboolean forceopaque)
{
float a;
int w, h;
if (!conback)
return;
w = vid.width;
h = vid.height;
if (forceopaque)
{
a = 1; // console background is necessary
}
else
{
if (!scr_conalpha.value)
return;
a = scr_conalpha.value;
}
if (scr_chatmode == 2)
{
h>>=1;
w>>=1;
}
if (a >= 1)
{
R2D_ImageColours(1, 1, 1, 1);
R2D_ScalePic(0, lastline-(int)vid.height, w, h, conback);
}
else
{
R2D_ImageColours(1, 1, 1, a);
R2D_ScalePic (0, lastline - (int)vid.height, w, h, conback);
R2D_ImageColours(1, 1, 1, 1);
}
}
void R2D_EditorBackground (void)
{
R2D_ScalePic(0, 0, vid.width, vid.height, conback);
}
/*
=============
Draw_TileClear
This repeats a 64*64 tile graphic to fill the screen around a sized down
refresh window.
=============
*/
void R2D_TileClear (int x, int y, int w, int h)
{
float newsl, newsh, newtl, newth;
newsl = (x)/(float)64;
newsh = newsl + (w)/(float)64;
newtl = (y)/(float)64;
newth = newtl + (h)/(float)64;
R2D_ImageColours(1,1,1,1);
draw_mesh_xyz[0][0] = x;
draw_mesh_xyz[0][1] = y;
draw_mesh_st[0][0] = newsl;
draw_mesh_st[0][1] = newtl;
draw_mesh_xyz[1][0] = x+w;
draw_mesh_xyz[1][1] = y;
draw_mesh_st[1][0] = newsh;
draw_mesh_st[1][1] = newtl;
draw_mesh_xyz[2][0] = x+w;
draw_mesh_xyz[2][1] = y+h;
draw_mesh_st[2][0] = newsh;
draw_mesh_st[2][1] = newth;
draw_mesh_xyz[3][0] = x;
draw_mesh_xyz[3][1] = y+h;
draw_mesh_st[3][0] = newsl;
draw_mesh_st[3][1] = newth;
BE_DrawMesh_Single(draw_backtile, &draw_mesh, NULL, NULL);
}
void R2D_Conback_Callback(struct cvar_s *var, char *oldvalue)
{
if (qrenderer == QR_NONE)
{
conback = NULL;
return;
}
if (*var->string)
conback = R_RegisterPic(var->string);
if (!conback || !conback->width)
{
conback = R_RegisterCustom("console", NULL, NULL);
if (!conback)
{
if (M_GameType() == MGT_HEXEN2)
conback = R_RegisterPic("gfx/menu/conback.lmp");
else if (M_GameType() == MGT_QUAKE2)
conback = R_RegisterPic("pics/conback.pcx");
else
conback = R_RegisterPic("gfx/conback.lmp");
}
}
}
void R2D_Font_Callback(struct cvar_s *var, char *oldvalue)
{
if (font_conchar)
Font_Free(font_conchar);
if (qrenderer == QR_NONE)
{
font_conchar = NULL;
return;
}
font_conchar = Font_LoadFont(8*vid.pixelheight/vid.height, var->string);
if (!font_conchar && *var->string)
font_conchar = Font_LoadFont(8*vid.pixelheight/vid.height, "");
}
/*
============
R_PolyBlend
============
*/
//bright flashes and stuff
void R2D_PolyBlend (void)
{
if (!sw_blend[3])
return;
if (r_refdef.flags & Q2RDF_NOWORLDMODEL)
return;
R2D_ImageColours (sw_blend[0], sw_blend[1], sw_blend[2], sw_blend[3]);
R2D_ScalePic(0, 0, vid.width, vid.height, shader_polyblend);
R2D_ImageColours (1, 1, 1, 1);
}
//for lack of hardware gamma
void R2D_BrightenScreen (void)
{
float f;
RSpeedMark();
if (gl_contrast.value <= 1.0)
return;
if (r_refdef.flags & Q2RDF_NOWORLDMODEL)
return;
f = gl_contrast.value;
f = min (f, 3);
while (f > 1)
{
if (f >= 2)
R2D_ImageColours (1, 1, 1, 1);
else
R2D_ImageColours (f - 1, f - 1, f - 1, 1);
R2D_ScalePic(0, 0, vid.width, vid.height, shader_brighten);
f *= 0.5;
}
R2D_ImageColours (1, 1, 1, 1);
RSpeedEnd(RSPEED_PALETTEFLASHES);
}
#endif