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94412da2dec4bbe8db6be06b6855808ba37726b2
fs2open.github.com/code/graphics/2d.cpp
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asarium 4274a6da76 Add unit test setup
2016-08-15 11:40:08 +02:00

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/*
* Copyright (C) Volition, Inc. 1999. All rights reserved.
*
* All source code herein is the property of Volition, Inc. You may not sell
* or otherwise commercially exploit the source or things you created based on the
* source.
*
*/
#ifdef _WIN32
#include <windows.h>
#include <windowsx.h>
#endif
#include <limits.h>
#include <algorithm>
#include "cmdline/cmdline.h"
#include "debugconsole/console.h"
#include "gamesequence/gamesequence.h" //WMC - for scripting hooks in gr_flip()
#include "globalincs/systemvars.h"
#include "graphics/2d.h"
#include "graphics/font.h"
#include "graphics/grbatch.h"
#include "graphics/grinternal.h"
#include "graphics/gropengl.h" // Includes for different rendering systems
#include "graphics/gropengldraw.h"
#include "graphics/grstub.h"
#include "graphics/paths/PathRenderer.h"
#include "io/keycontrol.h" // m!m
#include "io/timer.h"
#include "osapi/osapi.h"
#include "palman/palman.h"
#include "parse/scripting.h"
#include "parse/parselo.h"
#include "render/3d.h"
#if ( SDL_VERSION_ATLEAST(1, 2, 7) )
#include "SDL_cpuinfo.h"
#endif
#include "SDL_surface.h"
const char *Resolution_prefixes[GR_NUM_RESOLUTIONS] = { "", "2_" };
screen gr_screen;
color_gun Gr_red, Gr_green, Gr_blue, Gr_alpha;
color_gun Gr_t_red, Gr_t_green, Gr_t_blue, Gr_t_alpha;
color_gun Gr_ta_red, Gr_ta_green, Gr_ta_blue, Gr_ta_alpha;
color_gun *Gr_current_red, *Gr_current_green, *Gr_current_blue, *Gr_current_alpha;
ubyte Gr_original_palette[768]; // The palette
ubyte Gr_current_palette[768];
char Gr_current_palette_name[128] = NOX("none");
// cursor stuff
io::mouse::Cursor* Web_cursor = NULL;
int Gr_inited = 0;
uint Gr_signature = 0;
float Gr_gamma = 1.8f;
int Gr_gamma_int = 180;
// z-buffer stuff
int gr_zbuffering = 0;
int gr_zbuffering_mode = 0;
int gr_global_zbuffering = 0;
// stencil buffer stuff
int gr_stencil_mode = 0;
// alpha mask stuff
int gr_alpha_test = 0;
// Default clipping distances
const float Default_min_draw_distance = 1.0f;
const float Default_max_draw_distance = 1e10;
float Min_draw_distance = Default_min_draw_distance;
float Max_draw_distance = Default_max_draw_distance;
// Pre-computed screen resize vars
static float Gr_full_resize_X = 1.0f, Gr_full_resize_Y = 1.0f;
static float Gr_full_center_resize_X = 1.0f, Gr_full_center_resize_Y = 1.0f;
static float Gr_resize_X = 1.0f, Gr_resize_Y = 1.0f;
static float Gr_menu_offset_X = 0.0f, Gr_menu_offset_Y = 0.0f;
static float Gr_menu_zoomed_offset_X = 0.0f, Gr_menu_zoomed_offset_Y = 0.0f;
float Gr_save_full_resize_X = 1.0f, Gr_save_full_resize_Y = 1.0f;
float Gr_save_full_center_resize_X = 1.0f, Gr_save_full_center_resize_Y = 1.0f;
float Gr_save_resize_X = 1.0f, Gr_save_resize_Y = 1.0f;
float Gr_save_menu_offset_X = 0.0f, Gr_save_menu_offset_Y = 0.0f;
float Gr_save_menu_zoomed_offset_X = 0.0f, Gr_save_menu_zoomed_offset_Y = 0.0f;
bool Save_custom_screen_size;
void gr_set_screen_scale(int w, int h, int zoom_w, int zoom_h, int max_w, int max_h, int center_w, int center_h, bool force_stretch)
{
bool do_zoom = zoom_w > 0 && zoom_h > 0 && (zoom_w != w || zoom_h != h);
Gr_full_resize_X = (float)max_w / (float)w;
Gr_full_resize_Y = (float)max_h / (float)h;
Gr_full_center_resize_X = (float)center_w / (float)w;
Gr_full_center_resize_Y = (float)center_h / (float)h;
if (do_zoom) {
float aspect_quotient = ((float)center_w / (float)center_h) / ((float)zoom_w / (float)zoom_h);
Gr_resize_X = (float)center_w / (float)zoom_w / ((aspect_quotient > 1.0f) ? aspect_quotient : 1.0f);
Gr_resize_Y = (float)center_h / (float)zoom_h * ((aspect_quotient < 1.0f) ? aspect_quotient : 1.0f);
Gr_menu_offset_X = ((center_w - w * Gr_resize_X) / 2.0f) + gr_screen.center_offset_x;
Gr_menu_offset_Y = ((center_h - h * Gr_resize_Y) / 2.0f) + gr_screen.center_offset_y;
Gr_menu_zoomed_offset_X = (Gr_menu_offset_X >= 0.0f) ? Gr_menu_offset_X : gr_screen.center_offset_x;
Gr_menu_zoomed_offset_Y = (Gr_menu_offset_Y >= 0.0f) ? Gr_menu_offset_Y : gr_screen.center_offset_y;
if (force_stretch || Cmdline_stretch_menu) {
if (Gr_menu_offset_X > (float)gr_screen.center_offset_x) {
Gr_resize_X = Gr_full_center_resize_X;
Gr_menu_offset_X = Gr_menu_zoomed_offset_X = (float)gr_screen.center_offset_x;
}
if (Gr_menu_offset_Y > (float)gr_screen.center_offset_y) {
Gr_resize_Y = Gr_full_center_resize_Y;
Gr_menu_offset_Y = Gr_menu_zoomed_offset_Y = (float)gr_screen.center_offset_y;
}
}
} else {
if (force_stretch || Cmdline_stretch_menu) {
Gr_resize_X = Gr_full_center_resize_X;
Gr_resize_Y = Gr_full_center_resize_Y;
Gr_menu_offset_X = Gr_menu_zoomed_offset_X = (float)gr_screen.center_offset_x;
Gr_menu_offset_Y = Gr_menu_zoomed_offset_Y = (float)gr_screen.center_offset_y;
} else {
float aspect_quotient = ((float)center_w / (float)center_h) / ((float)w / (float)h);
Gr_resize_X = Gr_full_center_resize_X / ((aspect_quotient > 1.0f) ? aspect_quotient : 1.0f);
Gr_resize_Y = Gr_full_center_resize_Y * ((aspect_quotient < 1.0f) ? aspect_quotient : 1.0f);
Gr_menu_offset_X = Gr_menu_zoomed_offset_X = ((aspect_quotient > 1.0f) ? ((center_w - w * Gr_resize_X) / 2.0f) : 0.0f) + gr_screen.center_offset_x;
Gr_menu_offset_Y = Gr_menu_zoomed_offset_Y = ((aspect_quotient < 1.0f) ? ((center_h - h * Gr_resize_Y) / 2.0f) : 0.0f) + gr_screen.center_offset_y;
}
}
gr_screen.custom_size = (w != max_w || w != center_w || h != max_h || h != center_h);
if (gr_screen.rendering_to_texture == -1) {
gr_screen.max_w_unscaled = w;
gr_screen.max_h_unscaled = h;
if (do_zoom) {
gr_screen.max_w_unscaled_zoomed = gr_screen.max_w_unscaled + fl2i(Gr_menu_offset_X * 2.0f / Gr_resize_X);
gr_screen.max_h_unscaled_zoomed = gr_screen.max_h_unscaled + fl2i(Gr_menu_offset_Y * 2.0f / Gr_resize_Y);
if (gr_screen.max_w_unscaled_zoomed > gr_screen.max_w_unscaled) {
gr_screen.max_w_unscaled_zoomed = gr_screen.max_w_unscaled;
}
if (gr_screen.max_h_unscaled_zoomed > gr_screen.max_h_unscaled) {
gr_screen.max_h_unscaled_zoomed = gr_screen.max_h_unscaled;
}
} else {
gr_screen.max_w_unscaled_zoomed = gr_screen.max_w_unscaled;
gr_screen.max_h_unscaled_zoomed = gr_screen.max_h_unscaled;
}
}
}
void gr_reset_screen_scale()
{
Gr_full_resize_X = Gr_save_full_resize_X;
Gr_full_resize_Y = Gr_save_full_resize_Y;
Gr_full_center_resize_X = Gr_save_full_center_resize_X;
Gr_full_center_resize_Y = Gr_save_full_center_resize_Y;
Gr_resize_X = Gr_save_resize_X;
Gr_resize_Y = Gr_save_resize_Y;
Gr_menu_offset_X = Gr_save_menu_offset_X;
Gr_menu_offset_Y = Gr_save_menu_offset_Y;
Gr_menu_zoomed_offset_X = Gr_save_menu_zoomed_offset_X;
Gr_menu_zoomed_offset_Y = Gr_save_menu_zoomed_offset_Y;
gr_screen.custom_size = Save_custom_screen_size;
if (gr_screen.rendering_to_texture == -1) {
gr_screen.max_w_unscaled = gr_screen.max_w_unscaled_zoomed = (gr_screen.res == GR_1024) ? 1024 : 640;
gr_screen.max_h_unscaled = gr_screen.max_h_unscaled_zoomed = (gr_screen.res == GR_1024) ? 768 : 480;
}
}
/**
* This function is to be called if you wish to scale GR_1024 or GR_640 x and y positions or
* lengths in order to keep the correctly scaled to nonstandard resolutions
*
* @param x X value, can be NULL
* @param y Y value, can be NULL
* @param w width, can be NULL
* @param h height, can be NULL
* @param resize_mode
* @return always true unless error
*/
bool gr_resize_screen_pos(int *x, int *y, int *w, int *h, int resize_mode)
{
if ( resize_mode == GR_RESIZE_NONE || (!gr_screen.custom_size && (gr_screen.rendering_to_texture == -1)) ) {
return false;
}
float xy_tmp = 0.0f;
if ( x ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*x) * Gr_full_resize_X;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*x) * Gr_full_center_resize_X + (float)gr_screen.center_offset_x;
break;
case GR_RESIZE_MENU:
xy_tmp = (*x) * Gr_resize_X + Gr_menu_offset_X;
break;
case GR_RESIZE_MENU_ZOOMED:
xy_tmp = (*x) * Gr_resize_X + Gr_menu_zoomed_offset_X;
break;
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*x) * Gr_resize_X;
break;
}
(*x) = fl2ir(xy_tmp);
}
if ( y ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*y) * Gr_full_resize_Y;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*y) * Gr_full_center_resize_Y + (float)gr_screen.center_offset_y;
break;
case GR_RESIZE_MENU:
xy_tmp = (*y) * Gr_resize_Y + Gr_menu_offset_Y;
break;
case GR_RESIZE_MENU_ZOOMED:
xy_tmp = (*y) * Gr_resize_Y + Gr_menu_zoomed_offset_Y;
break;
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*y) * Gr_resize_Y;
break;
}
(*y) = fl2ir(xy_tmp);
}
if ( w ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*w) * Gr_full_resize_X;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*w) * Gr_full_center_resize_X;
break;
case GR_RESIZE_MENU:
case GR_RESIZE_MENU_ZOOMED:
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*w) * Gr_resize_X;
break;
}
(*w) = fl2ir(xy_tmp);
}
if ( h ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*h) * Gr_full_resize_Y;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*h) * Gr_full_center_resize_Y;
break;
case GR_RESIZE_MENU:
case GR_RESIZE_MENU_ZOOMED:
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*h) * Gr_resize_Y;
break;
}
(*h) = fl2ir(xy_tmp);
}
return true;
}
/**
*
* @param x X value, can be NULL
* @param y Y value, can be NULL
* @param w width, can be NULL
* @param h height, can be NULL
* @param resize_mode
* @return always true unless error
*/
bool gr_unsize_screen_pos(int *x, int *y, int *w, int *h, int resize_mode)
{
if ( resize_mode == GR_RESIZE_NONE || (!gr_screen.custom_size && (gr_screen.rendering_to_texture == -1)) ) {
return false;
}
float xy_tmp = 0.0f;
if ( x ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*x) / Gr_full_resize_X;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = ((*x) - (float)gr_screen.center_offset_x) / Gr_full_center_resize_X;
break;
case GR_RESIZE_MENU:
xy_tmp = ((*x) - Gr_menu_offset_X) / Gr_resize_X;
break;
case GR_RESIZE_MENU_ZOOMED:
xy_tmp = ((*x) - Gr_menu_zoomed_offset_X) / Gr_resize_X;
break;
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*x) / Gr_resize_X;
break;
}
(*x) = fl2ir(xy_tmp);
}
if ( y ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*y) / Gr_full_resize_Y;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = ((*y) - (float)gr_screen.center_offset_y) / Gr_full_center_resize_Y;
break;
case GR_RESIZE_MENU:
xy_tmp = ((*y) - Gr_menu_offset_Y) / Gr_resize_Y;
break;
case GR_RESIZE_MENU_ZOOMED:
xy_tmp = ((*y) - Gr_menu_zoomed_offset_Y) / Gr_resize_Y;
break;
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*y) / Gr_resize_Y;
break;
}
(*y) = fl2ir(xy_tmp);
}
if ( w ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*w) / Gr_full_resize_X;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*w) / Gr_full_center_resize_X;
break;
case GR_RESIZE_MENU:
case GR_RESIZE_MENU_ZOOMED:
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*w) / Gr_resize_X;
break;
}
(*w) = fl2ir(xy_tmp);
}
if ( h ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*h) / Gr_full_resize_Y;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*h) / Gr_full_center_resize_Y;
break;
case GR_RESIZE_MENU:
case GR_RESIZE_MENU_ZOOMED:
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*h) / Gr_resize_Y;
break;
}
(*h) = fl2ir(xy_tmp);
}
return true;
}
/**
* This function is to be called if you wish to scale GR_1024 or GR_640 x and y positions or
* lengths in order to keep the correctly scaled to nonstandard resolutions
*
* @param x X value, can be NULL
* @param y Y value, can be NULL
* @param w width, can be NULL
* @param h height, can be NULL
* @param resize_mode
* @return always true unless error
*/
bool gr_resize_screen_posf(float *x, float *y, float *w, float *h, int resize_mode)
{
if ( resize_mode == GR_RESIZE_NONE || (!gr_screen.custom_size && (gr_screen.rendering_to_texture == -1)) ) {
return false;
}
float xy_tmp = 0.0f;
if ( x ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*x) * Gr_full_resize_X;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*x) * Gr_full_center_resize_X + (float)gr_screen.center_offset_x;
break;
case GR_RESIZE_MENU:
xy_tmp = (*x) * Gr_resize_X + Gr_menu_offset_X;
break;
case GR_RESIZE_MENU_ZOOMED:
xy_tmp = (*x) * Gr_resize_X + Gr_menu_zoomed_offset_X;
break;
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*x) * Gr_resize_X;
break;
}
(*x) = xy_tmp;
}
if ( y ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*y) * Gr_full_resize_Y;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*y) * Gr_full_center_resize_Y + (float)gr_screen.center_offset_y;
break;
case GR_RESIZE_MENU:
xy_tmp = (*y) * Gr_resize_Y + Gr_menu_offset_Y;
break;
case GR_RESIZE_MENU_ZOOMED:
xy_tmp = (*y) * Gr_resize_Y + Gr_menu_zoomed_offset_Y;
break;
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*y) * Gr_resize_Y;
break;
}
(*y) = xy_tmp;
}
if ( w ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*w) * Gr_full_resize_X;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*w) * Gr_full_center_resize_X;
break;
case GR_RESIZE_MENU:
case GR_RESIZE_MENU_ZOOMED:
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*w) * Gr_resize_X;
break;
}
(*w) = xy_tmp;
}
if ( h ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*h) * Gr_full_resize_Y;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*h) * Gr_full_center_resize_Y;
break;
case GR_RESIZE_MENU:
case GR_RESIZE_MENU_ZOOMED:
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*h) * Gr_resize_Y;
break;
}
(*h) = xy_tmp;
}
return true;
}
/**
*
* @param x X value, can be NULL
* @param y Y value, can be NULL
* @param w width, can be NULL
* @param h height, can be NULL
* @param resize_mode
* @return always true unless error
*/
bool gr_unsize_screen_posf(float *x, float *y, float *w, float *h, int resize_mode)
{
if ( resize_mode == GR_RESIZE_NONE || (!gr_screen.custom_size && (gr_screen.rendering_to_texture == -1)) ) {
return false;
}
float xy_tmp = 0.0f;
if ( x ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*x) / Gr_full_resize_X;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = ((*x) - (float)gr_screen.center_offset_x) / Gr_full_center_resize_X;
break;
case GR_RESIZE_MENU:
xy_tmp = ((*x) - Gr_menu_offset_X) / Gr_resize_X;
break;
case GR_RESIZE_MENU_ZOOMED:
xy_tmp = ((*x) - Gr_menu_zoomed_offset_X) / Gr_resize_X;
break;
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*x) / Gr_resize_X;
break;
}
(*x) = xy_tmp;
}
if ( y ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*y) / Gr_full_resize_Y;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = ((*y) - (float)gr_screen.center_offset_y) / Gr_full_center_resize_Y;
break;
case GR_RESIZE_MENU:
xy_tmp = ((*y) - Gr_menu_offset_Y) / Gr_resize_Y;
break;
case GR_RESIZE_MENU_ZOOMED:
xy_tmp = ((*y) - Gr_menu_zoomed_offset_Y) / Gr_resize_Y;
break;
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*y) / Gr_resize_Y;
break;
}
(*y) = xy_tmp;
}
if ( w ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*w) / Gr_full_resize_X;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*w) / Gr_full_center_resize_X;
break;
case GR_RESIZE_MENU:
case GR_RESIZE_MENU_ZOOMED:
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*w) / Gr_resize_X;
break;
}
(*w) = xy_tmp;
}
if ( h ) {
switch (resize_mode) {
case GR_RESIZE_FULL:
xy_tmp = (*h) / Gr_full_resize_Y;
break;
case GR_RESIZE_FULL_CENTER:
xy_tmp = (*h) / Gr_full_center_resize_Y;
break;
case GR_RESIZE_MENU:
case GR_RESIZE_MENU_ZOOMED:
case GR_RESIZE_MENU_NO_OFFSET:
xy_tmp = (*h) / Gr_resize_Y;
break;
}
(*h) = xy_tmp;
}
return true;
}
void gr_close(os::GraphicsOperations* graphicsOps)
{
if ( !Gr_inited ) {
return;
}
palette_flush();
font::close();
switch (gr_screen.mode) {
case GR_OPENGL:
gr_opengl_cleanup(graphicsOps, true);
break;
case GR_STUB:
break;
default:
Int3(); // Invalid graphics mode
}
Gr_inited = 0;
}
/**
* Set screen clear color
*/
DCF(clear_color, "set clear color r, g, b")
{
ubyte r, g, b;
dc_stuff_ubyte(&r);
dc_stuff_ubyte(&g);
dc_stuff_ubyte(&b);
// set the color
gr_set_clear_color(r, g, b);
}
void gr_set_palette_internal( const char *name, ubyte * palette, int restrict_font_to_128 )
{
if ( palette == NULL ) {
// Create a default palette
int r,g,b,i;
i = 0;
for (r=0; r<6; r++ )
for (g=0; g<6; g++ )
for (b=0; b<6; b++ ) {
Gr_current_palette[i*3+0] = (unsigned char)(r*51);
Gr_current_palette[i*3+1] = (unsigned char)(g*51);
Gr_current_palette[i*3+2] = (unsigned char)(b*51);
i++;
}
for ( i=216;i<256; i++ ) {
Gr_current_palette[i*3+0] = (unsigned char)((i-216)*6);
Gr_current_palette[i*3+1] = (unsigned char)((i-216)*6);
Gr_current_palette[i*3+2] = (unsigned char)((i-216)*6);
}
memmove( Gr_original_palette, Gr_current_palette, 768 );
} else {
memmove( Gr_original_palette, palette, 768 );
memmove( Gr_current_palette, palette, 768 );
}
if ( Gr_inited ) {
// Since the palette set code might shuffle the palette,
// reload it into the source palette
if (palette) {
memmove(palette, Gr_current_palette, 768);
}
// Update Palette Manager tables
memmove( gr_palette, Gr_current_palette, 768 );
palette_update(name, restrict_font_to_128);
}
}
void gr_set_palette( const char *name, ubyte * palette, int restrict_font_to_128 )
{
char *p;
palette_flush();
strcpy_s( Gr_current_palette_name, name );
p = strchr( Gr_current_palette_name, '.' );
if ( p ) *p = 0;
gr_screen.signature = Gr_signature++;
gr_set_palette_internal( name, palette, restrict_font_to_128 );
}
void gr_screen_resize(int width, int height)
{
// this should only be called from FRED!!
if ( !Fred_running ) {
Int3();
return;
}
gr_screen.save_center_w = gr_screen.center_w = gr_screen.save_max_w = gr_screen.max_w = gr_screen.max_w_unscaled = gr_screen.max_w_unscaled_zoomed = width;
gr_screen.save_center_h = gr_screen.center_h = gr_screen.save_max_h = gr_screen.max_h = gr_screen.max_h_unscaled = gr_screen.max_h_unscaled_zoomed = height;
gr_screen.offset_x = gr_screen.offset_x_unscaled = 0;
gr_screen.offset_y = gr_screen.offset_y_unscaled = 0;
gr_screen.clip_left = gr_screen.clip_left_unscaled = 0;
gr_screen.clip_top = gr_screen.clip_top_unscaled = 0;
gr_screen.clip_right = gr_screen.clip_right_unscaled = gr_screen.max_w - 1;
gr_screen.clip_bottom = gr_screen.clip_bottom_unscaled = gr_screen.max_h - 1;
gr_screen.clip_width = gr_screen.clip_width_unscaled = gr_screen.max_w;
gr_screen.clip_height = gr_screen.clip_height_unscaled = gr_screen.max_h;
gr_screen.clip_aspect = i2fl(gr_screen.clip_width) / i2fl(gr_screen.clip_height);
if (gr_screen.custom_size) {
gr_unsize_screen_pos( &gr_screen.max_w_unscaled, &gr_screen.max_h_unscaled );
gr_unsize_screen_pos( &gr_screen.max_w_unscaled_zoomed, &gr_screen.max_h_unscaled_zoomed );
gr_unsize_screen_pos( &gr_screen.clip_right_unscaled, &gr_screen.clip_bottom_unscaled );
gr_unsize_screen_pos( &gr_screen.clip_width_unscaled, &gr_screen.clip_height_unscaled );
}
gr_screen.save_max_w_unscaled = gr_screen.max_w_unscaled;
gr_screen.save_max_h_unscaled = gr_screen.max_h_unscaled;
gr_screen.save_max_w_unscaled_zoomed = gr_screen.max_w_unscaled_zoomed;
gr_screen.save_max_h_unscaled_zoomed = gr_screen.max_h_unscaled_zoomed;
if (gr_screen.mode == GR_OPENGL) {
extern void opengl_setup_viewport();
opengl_setup_viewport();
}
}
int gr_get_resolution_class(int width, int height)
{
if ((width >= GR_1024_THRESHOLD_WIDTH) && (height >= GR_1024_THRESHOLD_HEIGHT)) {
return GR_1024;
} else {
return GR_640;
}
}
static bool gr_init_sub(os::GraphicsOperations* graphicsOps, int mode, int width, int height, int depth, float center_aspect_ratio)
{
int res = GR_1024;
bool rc = false;
memset( &gr_screen, 0, sizeof(screen) );
float aspect_ratio = (float)width / (float)height;
if ( (((width == 640) && (height == 480)) || ((width == 1024) && (height == 768))) && (aspect_ratio == center_aspect_ratio) ) {
gr_screen.custom_size = false;
} else {
gr_screen.custom_size = true;
}
gr_screen.save_max_w = gr_screen.max_w = gr_screen.max_w_unscaled = gr_screen.max_w_unscaled_zoomed = width;
gr_screen.save_max_h = gr_screen.max_h = gr_screen.max_h_unscaled = gr_screen.max_h_unscaled_zoomed = height;
if (aspect_ratio > center_aspect_ratio) {
gr_screen.save_center_w = gr_screen.center_w = fl2ir(height * center_aspect_ratio);
gr_screen.save_center_h = gr_screen.center_h = height;
} else if (aspect_ratio < center_aspect_ratio) {
gr_screen.save_center_w = gr_screen.center_w = width;
gr_screen.save_center_h = gr_screen.center_h = fl2ir(width / center_aspect_ratio);
} else {
gr_screen.save_center_w = gr_screen.center_w = width;
gr_screen.save_center_h = gr_screen.center_h = height;
}
gr_screen.save_center_offset_x = gr_screen.center_offset_x = (width - gr_screen.center_w) / 2;
gr_screen.save_center_offset_y = gr_screen.center_offset_y = (height - gr_screen.center_h) / 2;
res = gr_get_resolution_class(gr_screen.center_w, gr_screen.center_h);
if (Fred_running) {
gr_screen.custom_size = false;
res = GR_640;
mode = GR_OPENGL;
}
Save_custom_screen_size = gr_screen.custom_size;
Gr_save_full_resize_X = Gr_full_resize_X = (float)width / ((res == GR_1024) ? 1024.0f : 640.0f);
Gr_save_full_resize_Y = Gr_full_resize_Y = (float)height / ((res == GR_1024) ? 768.0f : 480.0f);
Gr_save_full_center_resize_X = Gr_full_center_resize_X = (float)gr_screen.center_w / ((res == GR_1024) ? 1024.0f : 640.0f);
Gr_save_full_center_resize_Y = Gr_full_center_resize_Y = (float)gr_screen.center_h / ((res == GR_1024) ? 768.0f : 480.0f);
if (gr_screen.custom_size && !Cmdline_stretch_menu) {
float aspect_quotient = center_aspect_ratio / (4.0f / 3.0f);
Gr_save_resize_X = Gr_resize_X = Gr_full_center_resize_X / ((aspect_quotient > 1.0f) ? aspect_quotient : 1.0f);
Gr_save_resize_Y = Gr_resize_Y = Gr_full_center_resize_Y * ((aspect_quotient < 1.0f) ? aspect_quotient : 1.0f);
Gr_save_menu_offset_X = Gr_menu_offset_X = ((aspect_quotient > 1.0f) ? ((gr_screen.center_w - gr_screen.center_w / aspect_quotient) / 2.0f) : 0.0f) + gr_screen.center_offset_x;
Gr_save_menu_offset_Y = Gr_menu_offset_Y = ((aspect_quotient < 1.0f) ? ((gr_screen.center_h - gr_screen.center_h * aspect_quotient) / 2.0f) : 0.0f) + gr_screen.center_offset_y;
} else {
Gr_save_resize_X = Gr_resize_X = Gr_full_center_resize_X;
Gr_save_resize_Y = Gr_resize_Y = Gr_full_center_resize_Y;
Gr_save_menu_offset_X = Gr_menu_offset_X = (float)gr_screen.center_offset_x;
Gr_save_menu_offset_Y = Gr_menu_offset_Y = (float)gr_screen.center_offset_y;
}
Gr_save_menu_zoomed_offset_X = Gr_menu_zoomed_offset_X = Gr_menu_offset_X;
Gr_save_menu_zoomed_offset_Y = Gr_menu_zoomed_offset_Y = Gr_menu_offset_Y;
gr_screen.signature = Gr_signature++;
gr_screen.bits_per_pixel = depth;
gr_screen.bytes_per_pixel= depth / 8;
gr_screen.rendering_to_texture = -1;
gr_screen.envmap_render_target = -1;
gr_screen.mode = mode;
gr_screen.res = res;
gr_screen.aspect = 1.0f; // Normal PC screen
gr_screen.offset_x = gr_screen.offset_x_unscaled = 0;
gr_screen.offset_y = gr_screen.offset_y_unscaled = 0;
gr_screen.clip_left = gr_screen.clip_left_unscaled = 0;
gr_screen.clip_top = gr_screen.clip_top_unscaled = 0;
gr_screen.clip_right = gr_screen.clip_right_unscaled = gr_screen.max_w - 1;
gr_screen.clip_bottom = gr_screen.clip_bottom_unscaled = gr_screen.max_h - 1;
gr_screen.clip_width = gr_screen.clip_width_unscaled = gr_screen.max_w;
gr_screen.clip_height = gr_screen.clip_height_unscaled = gr_screen.max_h;
gr_screen.clip_aspect = i2fl(gr_screen.clip_width) / i2fl(gr_screen.clip_height);
gr_screen.clip_center_x = (gr_screen.clip_left + gr_screen.clip_right) * 0.5f;
gr_screen.clip_center_y = (gr_screen.clip_top + gr_screen.clip_bottom) * 0.5f;
if (gr_screen.custom_size) {
gr_unsize_screen_pos( &gr_screen.max_w_unscaled, &gr_screen.max_h_unscaled );
gr_unsize_screen_pos( &gr_screen.max_w_unscaled_zoomed, &gr_screen.max_h_unscaled_zoomed );
gr_unsize_screen_pos( &gr_screen.clip_right_unscaled, &gr_screen.clip_bottom_unscaled );
gr_unsize_screen_pos( &gr_screen.clip_width_unscaled, &gr_screen.clip_height_unscaled );
}
gr_screen.save_max_w_unscaled = gr_screen.max_w_unscaled;
gr_screen.save_max_h_unscaled = gr_screen.max_h_unscaled;
gr_screen.save_max_w_unscaled_zoomed = gr_screen.max_w_unscaled_zoomed;
gr_screen.save_max_h_unscaled_zoomed = gr_screen.max_h_unscaled_zoomed;
switch (mode) {
case GR_OPENGL:
rc = gr_opengl_init(graphicsOps);
break;
case GR_STUB:
rc = gr_stub_init();
break;
default:
Int3(); // Invalid graphics mode
}
if ( !rc ) {
return false;
}
return true;
}
bool gr_init(os::GraphicsOperations* graphicsOps, int d_mode, int d_width, int d_height, int d_depth)
{
int width = 1024, height = 768, depth = 32, mode = GR_OPENGL;
float center_aspect_ratio = -1.0f;
const char *ptr = NULL;
// If already inited, shutdown the previous graphics
if (Gr_inited) {
switch (gr_screen.mode) {
case GR_OPENGL:
gr_opengl_cleanup(graphicsOps, false);
break;
case GR_STUB:
break;
default:
Int3(); // Invalid graphics mode
}
}
// We cannot continue without this, quit, but try to help the user out first
ptr = os_config_read_string(NULL, NOX("VideocardFs2open"), NULL);
// if we don't have a config string then construct one, using OpenGL 1024x768 32-bit as the default
if (ptr == NULL) {
// If we don't have a display mode, use SDL to get default settings
// We need to initialize SDL to do this
if (SDL_InitSubSystem(SDL_INIT_VIDEO) == 0)
{
int display = static_cast<int>(os_config_read_uint("Video", "Display", 0));
SDL_DisplayMode displayMode;
if (SDL_GetDesktopDisplayMode(display, &displayMode) == 0)
{
width = displayMode.w;
height = displayMode.h;
int sdlBits = SDL_BITSPERPIXEL(displayMode.format);
if (SDL_ISPIXELFORMAT_ALPHA(displayMode.format))
{
depth = sdlBits;
}
else
{
// Fix a few values
if (sdlBits == 24)
{
depth = 32;
}
else if (sdlBits == 15)
{
depth = 16;
}
else
{
depth = sdlBits;
}
}
SCP_string videomode;
sprintf(videomode, "OGL -(%dx%d)x%d bit", width, height, depth);
os_config_write_string(NULL, NOX("VideocardFs2open"), videomode.c_str());
}
}
} else {
Assert(ptr != NULL);
// NOTE: The "ptr+5" is to skip over the initial "????-" in the video string.
// If the format of that string changes you'll have to change this too!!!
if (sscanf(ptr + 5, "(%dx%d)x%d ", &width, &height, &depth) != 3) {
Error(LOCATION, "Can't understand 'VideocardFs2open' config entry!");
}
}
if (Cmdline_res != NULL) {
int tmp_width = 0;
int tmp_height = 0;
if ( sscanf(Cmdline_res, "%dx%d", &tmp_width, &tmp_height) == 2 ) {
width = tmp_width;
height = tmp_height;
}
}
if (Cmdline_center_res != NULL) {
int tmp_center_width = 0;
int tmp_center_height = 0;
if ( (sscanf(Cmdline_center_res, "%dx%d", &tmp_center_width, &tmp_center_height) == 2) && (tmp_center_width > 0) && (tmp_center_height > 0) ) {
center_aspect_ratio = (float)tmp_center_width / (float)tmp_center_height;
}
}
if (d_mode == GR_DEFAULT) {
// OpenGL should be default
mode = GR_OPENGL;
} else {
mode = d_mode;
}
// see if we passed good values, and use those instead of the config settings
if ( (d_width != GR_DEFAULT) && (d_height != GR_DEFAULT) ) {
width = d_width;
height = d_height;
}
if (d_depth != GR_DEFAULT) {
depth = d_depth;
}
if (gr_get_resolution_class(width, height) != GR_640) {
// check for hi-res interface files so that we can verify our width/height is correct
bool has_sparky_hi = (cf_exists_full("2_ChoosePilot-m.pcx", CF_TYPE_ANY) && cf_exists_full("2_TechShipData-m.pcx", CF_TYPE_ANY));
// if we don't have it then fall back to 640x480 mode instead
if ( !has_sparky_hi ) {
if ( (width == 1024) && (height == 768) ) {
width = 640;
height = 480;
center_aspect_ratio = -1.0f;
} else {
width = 800;
height = 600;
center_aspect_ratio = -1.0f;
}
}
}
// if we are in standalone mode then just use special defaults
if (Is_standalone) {
mode = GR_STUB;
width = 640;
height = 480;
depth = 16;
center_aspect_ratio = -1.0f;
}
// These compiler macros will force windowed mode at the specified resolution if
// built in debug mode. This helps if you run with the debugger active as the
// game won't be switching from fullscreen to minimized every time you hit a breakpoint or
// warning message.
#ifdef _DEBUG
#ifdef _FORCE_DEBUG_WIDESCREEN
width = 1280;
height = 800;
depth = 32;
center_aspect_ratio = -1.0f;
Cmdline_window = 1;
#elif defined(_FORCE_DEBUG_1024)
width = 1024;
height = 768;
depth = 32;
center_aspect_ratio = -1.0f;
Cmdline_window = 1;
#elif defined(_FORCE_DEBUG_640)
width = 640;
height = 480;
depth = 32;
center_aspect_ratio = -1.0f;
Cmdline_window = 1;
#endif
#endif
if (center_aspect_ratio <= 0.0f) {
float aspect_ratio = (float)width / (float)height;
if (aspect_ratio > 3.5f) {
center_aspect_ratio = aspect_ratio * 0.3f;
} else {
center_aspect_ratio = aspect_ratio;
}
}
// now try to actually init everything...
if ( gr_init_sub(graphicsOps, mode, width, height, depth, center_aspect_ratio) == false ) {
return false;
}
mprintf(("Initializing path renderer...\n"));
graphics::paths::PathRenderer::init();
gr_set_palette_internal(Gr_current_palette_name, NULL, 0);
bm_init();
io::mouse::CursorManager::init();
// load the web pointer cursor bitmap
if (!running_unittests && Web_cursor == NULL) {
//if it still hasn't loaded then this usually means that the executable isn't in the same directory as the main fs2 install
if ( (Web_cursor = io::mouse::CursorManager::get()->loadCursor("cursorweb", true)) == NULL ) {
Error(LOCATION, "\nWeb cursor bitmap not found. This is most likely due to one of three reasons:\n"
" 1) You're running FreeSpace Open from somewhere other than your FreeSpace 2 folder;\n"
" 2) You've somehow corrupted your FreeSpace 2 installation, e.g. by modifying or removing the retail VP files;\n"
" 3) You haven't installed FreeSpace 2 at all. (Note that installing FreeSpace Open does NOT remove the need for a FreeSpace 2 installation.)\n"
"Number 1 can be fixed by simply moving the FreeSpace Open executable file to the FreeSpace 2 folder. Numbers 2 and 3 can be fixed by installing or reinstalling FreeSpace 2.\n");
}
}
mprintf(("GRAPHICS: Initializing default colors...\n"));
gr_set_color(0,0,0);
gr_set_clear_color(0, 0, 0);
gr_set_shader(NULL);
os_set_title(Osreg_title);
Gr_inited = 1;
return true;
}
void gr_force_windowed()
{
if ( !Gr_inited ) {
return;
}
switch( gr_screen.mode ) {
case GR_OPENGL:
break;
case GR_STUB:
break;
default:
Int3(); // Invalid graphics mode
}
if ( Os_debugger_running ) {
os_sleep(1000);
}
}
int gr_activated = 0;
void gr_activate(int active)
{
if (gr_activated == active) {
return;
}
gr_activated = active;
if ( !Gr_inited ) {
return;
}
switch( gr_screen.mode ) {
case GR_OPENGL:
extern void gr_opengl_activate(int active);
gr_opengl_activate(active);
break;
case GR_STUB:
break;
default:
Int3(); // Invalid graphics mode
}
}
// color stuff
void gr_get_color( int *r, int *g, int *b )
{
if (r) *r = gr_screen.current_color.red;
if (g) *g = gr_screen.current_color.green;
if (b) *b = gr_screen.current_color.blue;
}
void gr_init_color(color *c, int r, int g, int b)
{
CAP(r, 0, 255);
CAP(g, 0, 255);
CAP(b, 0, 255);
c->screen_sig = gr_screen.signature;
c->red = (ubyte)r;
c->green = (ubyte)g;
c->blue = (ubyte)b;
c->alpha = 255;
c->ac_type = AC_TYPE_NONE;
c->alphacolor = -1;
c->is_alphacolor = 0;
c->magic = 0xAC01;
c->raw8 = 0;
}
void gr_init_alphacolor( color *clr, int r, int g, int b, int alpha, int type )
{
CAP(r, 0, 255);
CAP(g, 0, 255);
CAP(b, 0, 255);
CAP(alpha, 0, 255);
gr_init_color( clr, r, g, b );
clr->alpha = (ubyte)alpha;
clr->ac_type = (ubyte)type;
clr->alphacolor = -1;
clr->is_alphacolor = 1;
}
void gr_set_color( int r, int g, int b )
{
Assert((r >= 0) && (r < 256));
Assert((g >= 0) && (g < 256));
Assert((b >= 0) && (b < 256));
gr_init_color( &gr_screen.current_color, r, g, b );
}
void gr_set_color_fast(color *dst)
{
if ( dst->screen_sig != gr_screen.signature ) {
if (dst->is_alphacolor) {
gr_init_alphacolor( dst, dst->red, dst->green, dst->blue, dst->alpha, dst->ac_type );
} else {
gr_init_color( dst, dst->red, dst->green, dst->blue );
}
}
gr_screen.current_color = *dst;
}
// shader functions
void gr_create_shader(shader *shade, ubyte r, ubyte g, ubyte b, ubyte c )
{
shade->screen_sig = gr_screen.signature;
shade->r = r;
shade->g = g;
shade->b = b;
shade->c = c;
}
void gr_set_shader(shader *shade)
{
if (shade) {
if (shade->screen_sig != gr_screen.signature) {
gr_create_shader( shade, shade->r, shade->g, shade->b, shade->c );
}
gr_screen.current_shader = *shade;
} else {
gr_create_shader( &gr_screen.current_shader, 0, 0, 0, 0 );
}
}
// new bitmap functions
void gr_bitmap(int _x, int _y, int resize_mode)
{
int _w, _h;
float x, y, w, h;
vertex verts[4];
if (gr_screen.mode == GR_STUB) {
return;
}
bm_get_info(gr_screen.current_bitmap, &_w, &_h, NULL, NULL, NULL);
x = i2fl(_x);
y = i2fl(_y);
w = i2fl(_w);
h = i2fl(_h);
// I will tidy this up later - RT
if ( resize_mode != GR_RESIZE_NONE && (gr_screen.custom_size || (gr_screen.rendering_to_texture != -1)) ) {
gr_resize_screen_posf(&x, &y, &w, &h, resize_mode);
}
memset(verts, 0, sizeof(verts));
verts[0].screen.xyw.x = x;
verts[0].screen.xyw.y = y;
verts[0].texture_position.u = 0.0f;
verts[0].texture_position.v = 0.0f;
verts[1].screen.xyw.x = x + w;
verts[1].screen.xyw.y = y;
verts[1].texture_position.u = 1.0f;
verts[1].texture_position.v = 0.0f;
verts[2].screen.xyw.x = x + w;
verts[2].screen.xyw.y = y + h;
verts[2].texture_position.u = 1.0f;
verts[2].texture_position.v = 1.0f;
verts[3].screen.xyw.x = x;
verts[3].screen.xyw.y = y + h;
verts[3].texture_position.u = 0.0f;
verts[3].texture_position.v = 1.0f;
// turn off zbuffering
int saved_zbuffer_mode = gr_zbuffer_get();
gr_zbuffer_set(GR_ZBUFF_NONE);
gr_render(4, verts, TMAP_FLAG_TEXTURED | TMAP_FLAG_INTERFACE);
gr_zbuffer_set(saved_zbuffer_mode);
}
void gr_bitmap_uv(int _x, int _y, int _w, int _h, float _u0, float _v0, float _u1, float _v1, int resize_mode)
{
float x, y, w, h;
vertex verts[4];
if (gr_screen.mode == GR_STUB) {
return;
}
x = i2fl(_x);
y = i2fl(_y);
w = i2fl(_w);
h = i2fl(_h);
// I will tidy this up later - RT
if ( resize_mode != GR_RESIZE_NONE && (gr_screen.custom_size || (gr_screen.rendering_to_texture != -1)) ) {
gr_resize_screen_posf(&x, &y, &w, &h, resize_mode);
}
memset(verts, 0, sizeof(verts));
verts[0].screen.xyw.x = x;
verts[0].screen.xyw.y = y;
verts[0].texture_position.u = _u0;
verts[0].texture_position.v = _v0;
verts[1].screen.xyw.x = x + w;
verts[1].screen.xyw.y = y;
verts[1].texture_position.u = _u1;
verts[1].texture_position.v = _v0;
verts[2].screen.xyw.x = x + w;
verts[2].screen.xyw.y = y + h;
verts[2].texture_position.u = _u1;
verts[2].texture_position.v = _v1;
verts[3].screen.xyw.x = x;
verts[3].screen.xyw.y = y + h;
verts[3].texture_position.u = _u0;
verts[3].texture_position.v = _v1;
// turn off zbuffering
int saved_zbuffer_mode = gr_zbuffer_get();
gr_zbuffer_set(GR_ZBUFF_NONE);
gr_render(4, verts, TMAP_FLAG_TEXTURED | TMAP_FLAG_INTERFACE);
gr_zbuffer_set(saved_zbuffer_mode);
}
// NEW new bitmap functions -Bobboau
void gr_bitmap_list(bitmap_2d_list* list, int n_bm, int resize_mode)
{
for (int i = 0; i < n_bm; i++) {
bitmap_2d_list *l = &list[i];
bm_get_info(gr_screen.current_bitmap, &l->w, &l->h, NULL, NULL, NULL);
if ( resize_mode != GR_RESIZE_NONE && (gr_screen.custom_size || (gr_screen.rendering_to_texture != -1)) ) {
gr_resize_screen_pos(&l->x, &l->y, &l->w, &l->h, resize_mode);
}
}
g3_draw_2d_poly_bitmap_list(list, n_bm, TMAP_FLAG_INTERFACE);
}
// _->NEW<-_ NEW new bitmap functions -Bobboau
//takes a list of rectangles that have assosiated rectangles in a texture
void gr_bitmap_list(bitmap_rect_list* list, int n_bm, int resize_mode)
{
for(int i = 0; i < n_bm; i++) {
bitmap_2d_list *l = &list[i].screen_rect;
// if no valid hight or width values were given get some from the bitmap
if ( (l->w <= 0) || (l->h <= 0) ) {
bm_get_info(gr_screen.current_bitmap, &l->w, &l->h, NULL, NULL, NULL);
}
if ( resize_mode != GR_RESIZE_NONE && (gr_screen.custom_size || (gr_screen.rendering_to_texture != -1)) ) {
gr_resize_screen_pos(&l->x, &l->y, &l->w, &l->h, resize_mode);
}
}
g3_draw_2d_poly_bitmap_rect_list(list, n_bm, TMAP_FLAG_INTERFACE);
}
/**
* Given endpoints, and thickness, calculate coords of the endpoint
*/
void gr_pline_helper(vec3d *out, vec3d *in1, vec3d *in2, int thickness)
{
vec3d slope;
// slope of the line
if(vm_vec_same(in1, in2)) {
slope = vmd_zero_vector;
} else {
vm_vec_sub(&slope, in2, in1);
float temp = -slope.xyz.x;
slope.xyz.x = slope.xyz.y;
slope.xyz.y = temp;
vm_vec_normalize(&slope);
}
// get the points
vm_vec_scale_add(out, in1, &slope, (float)thickness);
}
/**
* Special function for drawing polylines.
*
* This function is specifically intended for polylines where each section
* is no more than 90 degrees away from a previous section.
* Moreover, it is _really_ intended for use with 45 degree angles.
*/
void gr_pline_special(SCP_vector<vec3d> *pts, int thickness,int resize_mode)
{
vec3d s1, s2, e1, e2, dir;
vec3d last_e1, last_e2;
vertex v[4];
vertex *verts[4] = {&v[0], &v[1], &v[2], &v[3]};
int saved_zbuffer_mode;
int started_frame = 0;
size_t num_pts = pts->size();
// if we have less than 2 pts, bail
if(num_pts < 2) {
return;
}
extern int G3_count;
if(G3_count == 0) {
g3_start_frame(1);
started_frame = 1;
}
// turn off zbuffering
saved_zbuffer_mode = gr_zbuffer_get();
gr_zbuffer_set(GR_ZBUFF_NONE);
// turn off culling
int cull = gr_set_cull(0);
// draw each section
last_e1 = vmd_zero_vector;
last_e2 = vmd_zero_vector;
int j;
for(size_t idx=0; idx<num_pts-1; idx++) {
// get the start and endpoints
s1 = pts->at(idx); // start 1 (on the line)
e1 = pts->at(idx+1); // end 1 (on the line)
gr_pline_helper(&s2, &s1, &e1, thickness); // start 2
vm_vec_sub(&dir, &e1, &s1);
vm_vec_add(&e2, &s2, &dir); // end 2
// stuff coords
v[0].screen.xyw.x = (float)ceil(s1.xyz.x);
v[0].screen.xyw.y = (float)ceil(s1.xyz.y);
v[0].screen.xyw.w = 0.0f;
v[0].texture_position.u = 0.5f;
v[0].texture_position.v = 0.5f;
v[0].flags = PF_PROJECTED;
v[0].codes = 0;
v[0].r = gr_screen.current_color.red;
v[0].g = gr_screen.current_color.green;
v[0].b = gr_screen.current_color.blue;
v[1].screen.xyw.x = (float)ceil(s2.xyz.x);
v[1].screen.xyw.y = (float)ceil(s2.xyz.y);
v[1].screen.xyw.w = 0.0f;
v[1].texture_position.u = 0.5f;
v[1].texture_position.v = 0.5f;
v[1].flags = PF_PROJECTED;
v[1].codes = 0;
v[1].r = gr_screen.current_color.red;
v[1].g = gr_screen.current_color.green;
v[1].b = gr_screen.current_color.blue;
v[2].screen.xyw.x = (float)ceil(e2.xyz.x);
v[2].screen.xyw.y = (float)ceil(e2.xyz.y);
v[2].screen.xyw.w = 0.0f;
v[2].texture_position.u = 0.5f;
v[2].texture_position.v = 0.5f;
v[2].flags = PF_PROJECTED;
v[2].codes = 0;
v[2].r = gr_screen.current_color.red;
v[2].g = gr_screen.current_color.green;
v[2].b = gr_screen.current_color.blue;
v[3].screen.xyw.x = (float)ceil(e1.xyz.x);
v[3].screen.xyw.y = (float)ceil(e1.xyz.y);
v[3].screen.xyw.w = 0.0f;
v[3].texture_position.u = 0.5f;
v[3].texture_position.v = 0.5f;
v[3].flags = PF_PROJECTED;
v[3].codes = 0;
v[3].r = gr_screen.current_color.red;
v[3].g = gr_screen.current_color.green;
v[3].b = gr_screen.current_color.blue;
//We could really do this better...but oh well. _WMC
if(resize_mode != GR_RESIZE_NONE) {
for(j=0;j<4;j++) {
gr_resize_screen_posf(&v[j].screen.xyw.x,&v[j].screen.xyw.y,NULL,NULL,resize_mode);
}
}
// draw the polys
g3_draw_poly_constant_sw(4, verts, TMAP_FLAG_GOURAUD | TMAP_FLAG_RGB, 0.1f);
// if we're past the first section, draw a "patch" triangle to fill any gaps
if(idx > 0) {
// stuff coords
v[0].screen.xyw.x = (float)ceil(s1.xyz.x);
v[0].screen.xyw.y = (float)ceil(s1.xyz.y);
v[0].screen.xyw.w = 0.0f;
v[0].texture_position.u = 0.5f;
v[0].texture_position.v = 0.5f;
v[0].flags = PF_PROJECTED;
v[0].codes = 0;
v[0].r = gr_screen.current_color.red;
v[0].g = gr_screen.current_color.green;
v[0].b = gr_screen.current_color.blue;
v[1].screen.xyw.x = (float)ceil(s2.xyz.x);
v[1].screen.xyw.y = (float)ceil(s2.xyz.y);
v[1].screen.xyw.w = 0.0f;
v[1].texture_position.u = 0.5f;
v[1].texture_position.v = 0.5f;
v[1].flags = PF_PROJECTED;
v[1].codes = 0;
v[1].r = gr_screen.current_color.red;
v[1].g = gr_screen.current_color.green;
v[1].b = gr_screen.current_color.blue;
v[2].screen.xyw.x = (float)ceil(last_e2.xyz.x);
v[2].screen.xyw.y = (float)ceil(last_e2.xyz.y);
v[2].screen.xyw.w = 0.0f;
v[2].texture_position.u = 0.5f;
v[2].texture_position.v = 0.5f;
v[2].flags = PF_PROJECTED;
v[2].codes = 0;
v[2].r = gr_screen.current_color.red;
v[2].g = gr_screen.current_color.green;
v[2].b = gr_screen.current_color.blue;
//Inefficiency or flexibility? you be the judge -WMC
if(resize_mode != GR_RESIZE_NONE) {
for(j=0;j<3;j++) {
gr_resize_screen_posf(&v[j].screen.xyw.x,&v[j].screen.xyw.y,NULL,NULL,resize_mode);
}
}
g3_draw_poly_constant_sw(3, verts, TMAP_FLAG_GOURAUD | TMAP_FLAG_RGB, 0.1f);
}
// store our endpoints
last_e1 = e1;
last_e2 = e2;
}
if(started_frame) {
g3_end_frame();
}
// restore zbuffer mode
gr_zbuffer_set(saved_zbuffer_mode);
// restore culling
gr_set_cull(cull);
}
int poly_list::find_first_vertex(int idx)
{
vec3d *o_norm = &norm[idx];
vertex *o_vert = &vert[idx];
vec3d *p_norm = &norm[0];
vertex *p_vert = &vert[0];
// we should always equal ourselves, so just use that as the stopping point
for (int i = 0; i < idx; i++) {
if ( (*p_norm == *o_norm)
&& (p_vert->world == o_vert->world)
&& (p_vert->texture_position == o_vert->texture_position) )
{
return i;
}
++p_norm;
++p_vert;
}
return idx;
}
int poly_list::find_first_vertex_fast(int idx)
{
uint* first_idx = std::lower_bound(sorted_indices, sorted_indices + n_verts, idx, finder(this, NULL, NULL));
if ( first_idx == sorted_indices + n_verts ) {
// if this happens then idx was never in the index list to begin with which is not good
mprintf(("Sorted index list missing index %d!", idx));
Int3();
return idx;
}
return *first_idx;
}
/**
* Given a list (plist) find the index within the indexed list that the vert at position idx within list is at
*/
int poly_list::find_index(poly_list *plist, int idx)
{
vec3d *o_norm = &plist->norm[idx];
vertex *o_vert = &plist->vert[idx];
vec3d *p_norm = &norm[0];
vertex *p_vert = &vert[0];
for (int i = 0; i < n_verts; i++) {
if ( (*p_norm == *o_norm)
&& (p_vert->world == o_vert->world)
&& (p_vert->texture_position == o_vert->texture_position))
{
return i;
}
++p_vert;
++p_norm;
}
return -1;
}
int poly_list::find_index_fast(poly_list *plist, int idx)
{
// searching for an out of bounds index using the finder means we're trying to find the vert and norm we're passing into the finder instance
uint* first_idx = std::lower_bound(sorted_indices, sorted_indices + n_verts, n_verts, finder(this, &plist->vert[idx], &plist->norm[idx]));
if (first_idx == sorted_indices + n_verts) {
return -1;
}
return *first_idx;
}
void poly_list::allocate(int _verts)
{
if (_verts <= currently_allocated)
return;
if (vert != NULL) {
vm_free(vert);
vert = NULL;
}
if (norm != NULL) {
vm_free(norm);
norm = NULL;
}
if (tsb != NULL) {
vm_free(tsb);
tsb = NULL;
}
if ( submodels != NULL ) {
vm_free(submodels);
submodels = NULL;
}
if ( sorted_indices != NULL ) {
vm_free(sorted_indices);
sorted_indices = NULL;
}
if (_verts) {
vert = (vertex*)vm_malloc(sizeof(vertex) * _verts);
norm = (vec3d*)vm_malloc(sizeof(vec3d) * _verts);
if (Cmdline_normal) {
tsb = (tsb_t*)vm_malloc(sizeof(tsb_t) * _verts);
}
if ( GLSL_version >= 130 ) {
submodels = (int*)vm_malloc(sizeof(int) * _verts);
}
sorted_indices = (uint*)vm_malloc(sizeof(uint) * _verts);
}
n_verts = 0;
currently_allocated = _verts;
}
poly_list::~poly_list()
{
if (vert != NULL) {
vm_free(vert);
vert = NULL;
}
if (norm != NULL) {
vm_free(norm);
norm = NULL;
}
if (tsb != NULL) {
vm_free(tsb);
tsb = NULL;
}
if ( submodels != NULL ) {
vm_free(submodels);
submodels = NULL;
}
if (sorted_indices != NULL) {
vm_free(sorted_indices);
sorted_indices = NULL;
}
}
void poly_list::calculate_tangent()
{
vertex *v0, *v1, *v2;
vec3d *t0, *t1, *t2;
vec3d side0, side1;
vec3d vt0, vt1;
float deltaU0, deltaV0, deltaU1, deltaV1;
vec3d tangent, binormal, cross;
float magg, scale;
if ( !Cmdline_normal ) {
return;
}
Assert( !(n_verts % 3) );
for (int i = 0; i < n_verts; i += 3) {
// vertex (reading)
v0 = &vert[i];
v1 = &vert[i+1];
v2 = &vert[i+2];
// tangents (writing)
t0 = &tsb[i].tangent;
t1 = &tsb[i+1].tangent;
t2 = &tsb[i+2].tangent;
deltaU0 = v1->texture_position.u - v0->texture_position.u;
deltaV0 = v1->texture_position.v - v0->texture_position.v;
deltaU1 = v2->texture_position.u - v0->texture_position.u;
deltaV1 = v2->texture_position.v - v0->texture_position.v;
// quick short circuit for NULL case
float n = (deltaU0 * deltaV1) - (deltaU1 * deltaV0);
if (n == 0.0f) {
// hit NULL, so just set identity
tangent = vmd_x_vector;
binormal = vmd_y_vector;
} else {
float blah = 1.0f / n;
vm_vec_sub(&side0, &v1->world, &v0->world);
vm_vec_sub(&side1, &v2->world, &v0->world);
// tangent
vm_vec_copy_scale(&vt0, &side0, deltaV1);
vm_vec_copy_scale(&vt1, &side1, deltaV0);
vm_vec_sub(&tangent, &vt0, &vt1);
vm_vec_scale(&tangent, blah);
// binormal
vm_vec_copy_scale(&vt0, &side0, deltaU1);
vm_vec_copy_scale(&vt1, &side1, deltaU0);
vm_vec_sub(&binormal, &vt0, &vt1);
vm_vec_scale(&binormal, blah);
}
// orthogonalize tangent (for all 3 verts)
magg = vm_vec_dot(&norm[i], &tangent);
vm_vec_scale_sub(t0, &tangent, &norm[i], magg);
vm_vec_normalize_safe(t0);
magg = vm_vec_dot(&norm[i+1], &tangent);
vm_vec_scale_sub(t1, &tangent, &norm[i+1], magg);
vm_vec_normalize_safe(t1);
magg = vm_vec_dot(&norm[i+2], &tangent);
vm_vec_scale_sub(t2, &tangent, &norm[i+2], magg);
vm_vec_normalize_safe(t2);
// compute handedness (for all 3 verts)
vm_vec_cross(&cross, &norm[i], &tangent);
scale = vm_vec_dot(&cross, &binormal);
tsb[i].scaler = (scale < 0.0f) ? -1.0f : 1.0f;
vm_vec_cross(&cross, &norm[i+1], &tangent);
scale = vm_vec_dot(&cross, &binormal);
tsb[i+1].scaler = (scale < 0.0f) ? -1.0f : 1.0f;
vm_vec_cross(&cross, &norm[i+2], &tangent);
scale = vm_vec_dot(&cross, &binormal);
tsb[i+2].scaler = (scale < 0.0f) ? -1.0f : 1.0f;
}
}
static poly_list buffer_list_internal;
void poly_list::make_index_buffer(SCP_vector<int> &vertex_list)
{
int nverts = 0;
int j, z = 0;
ubyte *nverts_good = NULL;
// calculate tangent space data (must be done early)
calculate_tangent();
// using vm_malloc() here rather than 'new' so we get the extra out-of-memory check
nverts_good = (ubyte *) vm_malloc(n_verts);
Assert( nverts_good != NULL );
if ( nverts_good == NULL )
return;
memset( nverts_good, 0, n_verts );
vertex_list.reserve(n_verts);
generate_sorted_index_list();
for (j = 0; j < n_verts; j++) {
if (find_first_vertex_fast(j) == j) {
nverts++;
nverts_good[j] = 1;
vertex_list.push_back(j);
}
}
// if there is nothig to change then bail
if (n_verts == nverts) {
if (nverts_good != NULL) {
vm_free(nverts_good);
}
return;
}
buffer_list_internal.n_verts = 0;
buffer_list_internal.allocate(nverts);
for (j = 0; j < n_verts; j++) {
if ( !nverts_good[j] ) {
continue;
}
buffer_list_internal.vert[z] = vert[j];
buffer_list_internal.norm[z] = norm[j];
if (Cmdline_normal) {
buffer_list_internal.tsb[z] = tsb[j];
}
if ( GLSL_version >= 130 ) {
buffer_list_internal.submodels[z] = submodels[j];
}
buffer_list_internal.n_verts++;
z++;
}
Assert(nverts == buffer_list_internal.n_verts);
if (nverts_good != NULL) {
vm_free(nverts_good);
}
buffer_list_internal.generate_sorted_index_list();
(*this) = buffer_list_internal;
}
poly_list& poly_list::operator = (poly_list &other_list)
{
allocate(other_list.n_verts);
memcpy(norm, other_list.norm, sizeof(vec3d) * other_list.n_verts);
memcpy(vert, other_list.vert, sizeof(vertex) * other_list.n_verts);
if (Cmdline_normal) {
memcpy(tsb, other_list.tsb, sizeof(tsb_t) * other_list.n_verts);
}
if ( GLSL_version >= 130 ) {
memcpy(submodels, other_list.submodels, sizeof(int) * other_list.n_verts);
}
memcpy(sorted_indices, other_list.sorted_indices, sizeof(uint) * other_list.n_verts);
n_verts = other_list.n_verts;
return *this;
}
void poly_list::generate_sorted_index_list()
{
for ( int j = 0; j < n_verts; ++j) {
sorted_indices[j] = j;
}
std::sort(sorted_indices, sorted_indices + n_verts, finder(this));
}
bool poly_list::finder::operator()(const uint a, const uint b)
{
vertex *vert_a;
vertex *vert_b;
vec3d *norm_a;
vec3d *norm_b;
Assert(search_list != NULL);
if ( a == (uint)search_list->n_verts ) {
Assert(vert_to_find != NULL);
Assert(norm_to_find != NULL);
Assert(a != b);
vert_a = vert_to_find;
norm_a = norm_to_find;
} else {
vert_a = &search_list->vert[a];
norm_a = &search_list->norm[a];
}
if ( b == (uint)search_list->n_verts ) {
Assert(vert_to_find != NULL);
Assert(norm_to_find != NULL);
Assert(a != b);
vert_b = vert_to_find;
norm_b = norm_to_find;
} else {
vert_b = &search_list->vert[b];
norm_b = &search_list->norm[b];
}
if (norm_a->xyz.x != norm_b->xyz.x) {
return norm_a->xyz.x < norm_b->xyz.x;
}
if (norm_a->xyz.y != norm_b->xyz.y) {
return norm_a->xyz.y < norm_b->xyz.y;
}
if (norm_a->xyz.z != norm_b->xyz.z) {
return norm_a->xyz.z < norm_b->xyz.z;
}
if (vert_a->world.xyz.x != vert_b->world.xyz.x) {
return vert_a->world.xyz.x < vert_b->world.xyz.x;
}
if (vert_a->world.xyz.y != vert_b->world.xyz.y) {
return vert_a->world.xyz.y < vert_b->world.xyz.y;
}
if (vert_a->world.xyz.z != vert_b->world.xyz.z) {
return vert_a->world.xyz.z < vert_b->world.xyz.z;
}
if (vert_a->texture_position.u != vert_b->texture_position.u) {
return vert_a->texture_position.u < vert_b->texture_position.u;
}
if ( vert_a->texture_position.v != vert_b->texture_position.v ) {
return vert_a->texture_position.v < vert_b->texture_position.v;
}
if ( !compare_indices ) {
return vert_a->texture_position.v < vert_b->texture_position.v;
} else {
return a < b;
}
}
void gr_shield_icon(coord2d coords[6], int resize_mode)
{
if (gr_screen.mode == GR_STUB) {
return;
}
if (resize_mode != GR_RESIZE_NONE) {
gr_resize_screen_pos(&coords[0].x, &coords[0].y, NULL, NULL, resize_mode);
gr_resize_screen_pos(&coords[1].x, &coords[1].y, NULL, NULL, resize_mode);
gr_resize_screen_pos(&coords[2].x, &coords[2].y, NULL, NULL, resize_mode);
gr_resize_screen_pos(&coords[3].x, &coords[3].y, NULL, NULL, resize_mode);
gr_resize_screen_pos(&coords[4].x, &coords[4].y, NULL, NULL, resize_mode);
gr_resize_screen_pos(&coords[5].x, &coords[5].y, NULL, NULL, resize_mode);
}
g3_draw_2d_shield_icon(coords,
gr_screen.current_color.red,
gr_screen.current_color.green,
gr_screen.current_color.blue,
gr_screen.current_color.alpha);
}
void gr_rect(int x, int y, int w, int h, int resize_mode)
{
if (gr_screen.mode == GR_STUB) {
return;
}
if (resize_mode != GR_RESIZE_NONE) {
gr_resize_screen_pos(&x, &y, &w, &h, resize_mode);
}
g3_draw_2d_rect(x, y, w, h,
gr_screen.current_color.red,
gr_screen.current_color.green,
gr_screen.current_color.blue,
gr_screen.current_color.alpha);
}
void gr_shade(int x, int y, int w, int h, int resize_mode)
{
int r, g, b, a;
if (gr_screen.mode == GR_STUB) {
return;
}
if (resize_mode != GR_RESIZE_NONE) {
gr_resize_screen_pos(&x, &y, &w, &h, resize_mode);
}
r = (int)gr_screen.current_shader.r;
g = (int)gr_screen.current_shader.g;
b = (int)gr_screen.current_shader.b;
a = (int)gr_screen.current_shader.c;
g3_draw_2d_rect(x, y, w, h, r, g, b, a);
}
void gr_set_bitmap(int bitmap_num, int alphablend_mode, int bitblt_mode, float alpha)
{
gr_screen.current_alpha = alpha;
gr_screen.current_alphablend_mode = alphablend_mode;
gr_screen.current_bitblt_mode = bitblt_mode;
gr_screen.current_bitmap = bitmap_num;
}
void gr_flip()
{
// m!m avoid running CHA_ONFRAME when the "Quit mission" popup is shown. See mantis 2446 for reference
if (!quit_mission_popup_shown)
{
profile_begin("LUA On Frame");
//WMC - Evaluate global hook if not override.
Script_system.RunBytecode(Script_globalhook);
//WMC - Do conditional hooks. Yippee!
Script_system.RunCondition(CHA_ONFRAME);
//WMC - Do scripting reset stuff
Script_system.EndFrame();
profile_end("LUA On Frame");
}
gr_screen.gf_flip();
}
uint gr_determine_model_shader_flags(
bool lighting,
bool fog,
bool textured,
bool in_shadow_map,
bool thruster_scale,
bool transform,
bool team_color_set,
int tmap_flags,
int spec_map,
int glow_map,
int normal_map,
int height_map,
int ambient_map,
int env_map,
int misc_map
) {
uint shader_flags = 0;
if ( GLSL_version >= 120 ) {
shader_flags |= SDR_FLAG_MODEL_CLIP;
}
if ( transform ) {
shader_flags |= SDR_FLAG_MODEL_TRANSFORM;
}
if ( in_shadow_map ) {
// if we're building the shadow map, we likely only need the flags here and above so bail
shader_flags |= SDR_FLAG_MODEL_SHADOW_MAP;
return shader_flags;
}
// setup shader flags for the things that we want/need
if ( lighting ) {
shader_flags |= SDR_FLAG_MODEL_LIGHT;
}
if ( fog ) {
shader_flags |= SDR_FLAG_MODEL_FOG;
}
if ( tmap_flags & TMAP_ANIMATED_SHADER ) {
shader_flags |= SDR_FLAG_MODEL_ANIMATED;
}
if ( textured ) {
if ( !Basemap_override ) {
shader_flags |= SDR_FLAG_MODEL_DIFFUSE_MAP;
}
if ( glow_map > 0 ) {
shader_flags |= SDR_FLAG_MODEL_GLOW_MAP;
}
if ( lighting ) {
if ( ( spec_map > 0 ) && !Specmap_override ) {
shader_flags |= SDR_FLAG_MODEL_SPEC_MAP;
if ( ( env_map > 0 ) && !Envmap_override ) {
shader_flags |= SDR_FLAG_MODEL_ENV_MAP;
}
}
if ( ( normal_map > 0) && !Normalmap_override ) {
shader_flags |= SDR_FLAG_MODEL_NORMAL_MAP;
}
if ( ( height_map > 0) && !Heightmap_override ) {
shader_flags |= SDR_FLAG_MODEL_HEIGHT_MAP;
}
if ( ambient_map > 0 ) {
shader_flags |= SDR_FLAG_MODEL_AMBIENT_MAP;
}
if ( Cmdline_shadow_quality && !in_shadow_map && !Shadow_override) {
shader_flags |= SDR_FLAG_MODEL_SHADOWS;
}
}
if ( misc_map > 0 ) {
shader_flags |= SDR_FLAG_MODEL_MISC_MAP;
}
if ( team_color_set ) {
shader_flags |= SDR_FLAG_MODEL_TEAMCOLOR;
}
}
if ( Deferred_lighting ) {
shader_flags |= SDR_FLAG_MODEL_DEFERRED;
}
if ( thruster_scale ) {
shader_flags |= SDR_FLAG_MODEL_THRUSTER;
}
if ( High_dynamic_range ) {
shader_flags |= SDR_FLAG_MODEL_HDR;
}
return shader_flags;
}
void gr_print_timestamp(int x, int y, int timestamp, int resize_mode)
{
char time[8];
// format the time information into strings
sprintf(time, "%.1d:%.2d:%.2d", (timestamp / 3600000) % 10, (timestamp / 60000) % 60, (timestamp / 1000) % 60);
time[7] = '\0';
gr_string(x, y, time, resize_mode);
}
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