1119 lines
31 KiB
C++
1119 lines
31 KiB
C++
/*
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* This file is part of the DXX-Rebirth project <http://www.dxx-rebirth.com/>.
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* It is copyright by its individual contributors, as recorded in the
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* project's Git history. See COPYING.txt at the top level for license
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* terms and a link to the Git history.
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*/
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/*
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*
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* OGL video functions. - Added 9/15/99 Matthew Mueller
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*
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*/
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#define DECLARE_VARS
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#ifdef RPI
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// extra libraries for the Raspberry Pi
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#include "bcm_host.h"
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#ifdef _MSC_VER
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#include <windows.h>
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#endif
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#if !defined(_MSC_VER) && !defined(macintosh)
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#include <unistd.h>
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#endif
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#if !defined(macintosh)
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#endif
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#include <algorithm>
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#include <errno.h>
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#include <SDL.h>
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#include "hudmsg.h"
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#include "game.h"
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#include "text.h"
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#include "gr.h"
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#include "gamefont.h"
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#include "grdef.h"
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#include "palette.h"
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#include "u_mem.h"
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#include "dxxerror.h"
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#include "inferno.h"
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#include "screens.h"
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#include "strutil.h"
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#include "args.h"
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#include "key.h"
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#include "physfsx.h"
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#include "internal.h"
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#include "render.h"
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#include "console.h"
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#include "config.h"
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#include "playsave.h"
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#include "vers_id.h"
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#include "game.h"
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#if defined(__APPLE__) && defined(__MACH__)
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#include <OpenGL/glu.h>
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#else
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#ifdef OGLES
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#include <EGL/egl.h>
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include <SDL_syswm.h>
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#else
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#include <GL/glu.h>
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#endif
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#endif
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using std::max;
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#ifdef OGLES
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int sdl_video_flags = 0;
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#ifdef RPI
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static EGL_DISPMANX_WINDOW_T nativewindow;
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static DISPMANX_ELEMENT_HANDLE_T dispman_element=DISPMANX_NO_HANDLE;
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static DISPMANX_DISPLAY_HANDLE_T dispman_display=DISPMANX_NO_HANDLE;
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#endif
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#else
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int sdl_video_flags = SDL_OPENGL;
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#endif
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int gr_installed = 0;
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int gl_initialized=0;
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int linedotscale=1; // scalar of glLinewidth and glPointSize - only calculated once when resolution changes
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#ifdef RPI
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int sdl_no_modeswitch=0;
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#else
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enum { sdl_no_modeswitch = 0 };
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#endif
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#ifdef OGLES
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EGLDisplay eglDisplay=EGL_NO_DISPLAY;
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EGLConfig eglConfig;
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EGLSurface eglSurface=EGL_NO_SURFACE;
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EGLContext eglContext=EGL_NO_CONTEXT;
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bool TestEGLError(char* pszLocation)
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{
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/*
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* eglGetError returns the last error that has happened using egl,
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* not the status of the last called function. The user has to
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* check after every single egl call or at least once every frame.
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*/
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EGLint iErr = eglGetError();
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if (iErr != EGL_SUCCESS)
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{
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con_printf(CON_URGENT, "%s failed (%d).", pszLocation, iErr);
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return 0;
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}
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return 1;
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}
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#endif
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void ogl_swap_buffers_internal(void)
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{
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#ifdef OGLES
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eglSwapBuffers(eglDisplay, eglSurface);
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#else
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SDL_GL_SwapBuffers();
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#endif
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}
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#ifdef RPI
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// MH: I got the following constants for vc_dispmanx_element_change_attributes() from:
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// http://qt.gitorious.org/qt/qtbase/commit/5933205cfcd73481cb0645fa6183103063fe3e0d
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// I do not know where they got them from, but OTOH, they are quite obvious.
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// these constants are not in any headers (yet)
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#define ELEMENT_CHANGE_LAYER (1<<0)
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#define ELEMENT_CHANGE_OPACITY (1<<1)
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#define ELEMENT_CHANGE_DEST_RECT (1<<2)
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#define ELEMENT_CHANGE_SRC_RECT (1<<3)
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#define ELEMENT_CHANGE_MASK_RESOURCE (1<<4)
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#define ELEMENT_CHANGE_TRANSFORM (1<<5)
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void rpi_destroy_element(void)
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{
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if (dispman_element != DISPMANX_NO_HANDLE) {
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DISPMANX_UPDATE_HANDLE_T dispman_update;
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con_printf(CON_DEBUG, "RPi: destroying display manager element");
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dispman_update = vc_dispmanx_update_start( 0 );
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if (vc_dispmanx_element_remove( dispman_update, dispman_element)) {
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con_printf(CON_URGENT, "RPi: failed to remove dispmanx element!");
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}
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vc_dispmanx_update_submit_sync( dispman_update );
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dispman_element = DISPMANX_NO_HANDLE;
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}
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}
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int rpi_setup_element(int x, int y, Uint32 video_flags, int update)
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{
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// this code is based on the work of Ben O'Steen
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// http://benosteen.wordpress.com/2012/04/27/using-opengl-es-2-0-on-the-raspberry-pi-without-x-windows/
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// https://github.com/benosteen/opengles-book-samples/tree/master/Raspi
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DISPMANX_UPDATE_HANDLE_T dispman_update;
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VC_RECT_T dst_rect;
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VC_RECT_T src_rect;
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VC_DISPMANX_ALPHA_T alpha_descriptor;
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uint32_t rpi_display_device=DISPMANX_ID_MAIN_LCD;
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uint32_t display_width;
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uint32_t display_height;
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int success;
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success = graphics_get_display_size(rpi_display_device, &display_width, &display_height);
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if ( success < 0 ) {
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con_printf(CON_URGENT, "Could not get RPi display size, assuming 640x480");
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display_width=640;
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display_height=480;
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}
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if ((uint32_t)x > display_width) {
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con_printf(CON_URGENT, "RPi: Requested width %d exceeds display width %u, scaling down!",
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x,display_width);
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x=(int)display_width;
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}
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if ((uint32_t)y > display_height) {
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con_printf(CON_URGENT, "RPi: Requested height %d exceeds display height %u, scaling down!",
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y,display_height);
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y=(int)display_height;
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}
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con_printf(CON_DEBUG, "RPi: display resolution %ux%u, game resolution: %dx%d (%s)", display_width, display_height, x, y, (video_flags & SDL_FULLSCREEN)?"fullscreen":"windowed");
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if (video_flags & SDL_FULLSCREEN) {
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/* scale to the full display size... */
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dst_rect.x = 0;
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dst_rect.y = 0;
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dst_rect.width = display_width;
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dst_rect.height= display_height;
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} else {
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/* TODO: we could query the position of the X11 window here
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and try to place the ovelray exactly above that...,
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we would have to track window movements, though ... */
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dst_rect.x = 0;
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dst_rect.y = 0;
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dst_rect.width = (uint32_t)x;
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dst_rect.height= (uint32_t)y;
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}
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src_rect.x = 0;
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src_rect.y = 0;
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src_rect.width = ((uint32_t)x)<< 16;
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src_rect.height =((uint32_t)y)<< 16;
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/* we do not want our overlay to be blended against the background */
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alpha_descriptor.flags=DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS;
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alpha_descriptor.opacity=0xffffffff;
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alpha_descriptor.mask=0;
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// open display, if we do not already have one ...
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if (dispman_display == DISPMANX_NO_HANDLE) {
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con_printf(CON_DEBUG, "RPi: opening display: %u",rpi_display_device);
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dispman_display = vc_dispmanx_display_open(rpi_display_device);
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if (dispman_display == DISPMANX_NO_HANDLE) {
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con_printf(CON_URGENT,"RPi: failed to open display: %u",rpi_display_device);
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}
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}
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if (dispman_element != DISPMANX_NO_HANDLE) {
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if (!update) {
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// if the element already exists, and we cannot update it, so recreate it
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rpi_destroy_element();
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}
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} else {
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// if the element does not exist, we cannot do an update
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update=0;
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}
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dispman_update = vc_dispmanx_update_start( 0 );
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if (update) {
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con_printf(CON_DEBUG, "RPi: updating display manager element");
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vc_dispmanx_element_change_attributes ( dispman_update, nativewindow.element,
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ELEMENT_CHANGE_DEST_RECT | ELEMENT_CHANGE_SRC_RECT,
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0 /*layer*/, 0 /*opacity*/,
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&dst_rect, &src_rect,
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0 /*mask*/, VC_IMAGE_ROT0 /*transform*/);
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} else {
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// create a new element
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con_printf(CON_DEBUG, "RPi: creating display manager element");
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dispman_element = vc_dispmanx_element_add ( dispman_update, dispman_display,
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0 /*layer*/, &dst_rect, 0 /*src*/,
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&src_rect, DISPMANX_PROTECTION_NONE,
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&alpha_descriptor, NULL /*clamp*/,
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VC_IMAGE_ROT0 /*transform*/);
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if (dispman_element == DISPMANX_NO_HANDLE) {
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con_printf(CON_URGENT,"RPi: failed to creat display manager elemenr");
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}
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nativewindow.element = dispman_element;
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}
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nativewindow.width = display_width;
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nativewindow.height = display_height;
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vc_dispmanx_update_submit_sync( dispman_update );
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return 0;
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}
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#endif // RPI
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#ifdef OGLES
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void ogles_destroy(void)
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{
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if( eglDisplay != EGL_NO_DISPLAY ) {
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eglMakeCurrent(eglDisplay, NULL, NULL, EGL_NO_CONTEXT);
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}
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if (eglContext != EGL_NO_CONTEXT) {
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con_printf(CON_DEBUG, "EGL: destroyig context");
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eglDestroyContext(eglDisplay, eglContext);
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eglContext = EGL_NO_CONTEXT;
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}
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if (eglSurface != EGL_NO_SURFACE) {
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con_printf(CON_DEBUG, "EGL: destroyig surface");
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eglDestroySurface(eglDisplay, eglSurface);
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eglSurface = EGL_NO_SURFACE;
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}
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if (eglDisplay != EGL_NO_DISPLAY) {
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con_printf(CON_DEBUG, "EGL: terminating");
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eglTerminate(eglDisplay);
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eglDisplay = EGL_NO_DISPLAY;
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}
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}
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#endif
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int ogl_init_window(int x, int y)
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{
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int use_x,use_y,use_bpp;
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Uint32 use_flags;
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#ifdef OGLES
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SDL_SysWMinfo info;
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Window x11Window = 0;
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Display* x11Display = 0;
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EGLint ver_maj, ver_min;
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EGLint configAttribs[] =
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{
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EGL_RED_SIZE, 5,
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EGL_GREEN_SIZE, 6,
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EGL_BLUE_SIZE, 5,
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EGL_DEPTH_SIZE, 16,
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EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES_BIT,
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EGL_NONE, EGL_NONE
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};
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// explicitely request an OpenGL ES 1.x context
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EGLint contextAttribs[] = { EGL_CONTEXT_CLIENT_VERSION, 1, EGL_NONE, EGL_NONE };
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// explicitely request a doublebuffering window
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EGLint winAttribs[] = { EGL_RENDER_BUFFER, EGL_BACK_BUFFER, EGL_NONE, EGL_NONE };
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int iConfigs;
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#endif // OGLES
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if (gl_initialized)
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ogl_smash_texture_list_internal();//if we are or were fullscreen, changing vid mode will invalidate current textures
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SDL_WM_SetCaption(DESCENT_VERSION, DXX_SDL_WINDOW_CAPTION);
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SDL_WM_SetIcon( SDL_LoadBMP( DXX_SDL_WINDOW_ICON_BITMAP ), NULL );
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use_x=x;
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use_y=y;
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use_bpp=GameArg.DbgBpp;
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use_flags=sdl_video_flags;
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if (sdl_no_modeswitch) {
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const SDL_VideoInfo *vinfo=SDL_GetVideoInfo();
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if (vinfo) {
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use_x=vinfo->current_w;
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use_y=vinfo->current_h;
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use_bpp=vinfo->vfmt->BitsPerPixel;
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use_flags=SDL_SWSURFACE | SDL_ANYFORMAT;
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} else {
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con_printf(CON_URGENT, "Could not query video info");
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}
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}
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if (!SDL_SetVideoMode(use_x, use_y, use_bpp, use_flags))
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{
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#ifdef RPI
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con_printf(CON_URGENT, "Could not set %dx%dx%d opengl video mode: %s\n (Ignored for RPI)",
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x, y, GameArg.DbgBpp, SDL_GetError());
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#else
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Error("Could not set %dx%dx%d opengl video mode: %s\n", x, y, GameArg.DbgBpp, SDL_GetError());
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#endif
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}
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#ifdef OGLES
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#ifndef RPI
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// NOTE: on the RPi, the EGL stuff is not connected to the X11 window,
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// so there is no need to destroy and recreate this
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ogles_destroy();
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#endif
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SDL_VERSION(&info.version);
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if (SDL_GetWMInfo(&info) > 0) {
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if (info.subsystem == SDL_SYSWM_X11) {
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x11Display = info.info.x11.display;
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x11Window = info.info.x11.window;
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con_printf (CON_DEBUG, "Display: %p, Window: %i ===", (void*)x11Display, (int)x11Window);
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}
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}
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if (eglDisplay == EGL_NO_DISPLAY) {
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#ifdef RPI
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eglDisplay = eglGetDisplay((EGLNativeDisplayType)EGL_DEFAULT_DISPLAY);
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#else
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eglDisplay = eglGetDisplay((EGLNativeDisplayType)x11Display);
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#endif
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if (eglDisplay == EGL_NO_DISPLAY) {
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con_printf(CON_URGENT, "EGL: Error querying EGL Display");
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}
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if (!eglInitialize(eglDisplay, &ver_maj, &ver_min)) {
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con_printf(CON_URGENT, "EGL: Error initializing EGL");
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} else {
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con_printf(CON_DEBUG, "EGL: Initialized, version: major %i minor %i", ver_maj, ver_min);
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}
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}
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#ifdef RPI
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if (rpi_setup_element(x,y,sdl_video_flags,1)) {
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Error("RPi: Could not set up a %dx%d element\n", x, y);
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}
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#endif
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if (eglSurface == EGL_NO_SURFACE) {
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if (!eglChooseConfig(eglDisplay, configAttribs, &eglConfig, 1, &iConfigs) || (iConfigs != 1)) {
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con_printf(CON_URGENT, "EGL: Error choosing config");
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} else {
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con_printf(CON_DEBUG, "EGL: config chosen");
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}
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#ifdef RPI
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eglSurface = eglCreateWindowSurface(eglDisplay, eglConfig, (EGLNativeWindowType)&nativewindow, winAttribs);
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#else
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eglSurface = eglCreateWindowSurface(eglDisplay, eglConfig, (NativeWindowType)x11Window, winAttribs);
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#endif
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if ((!TestEGLError("eglCreateWindowSurface")) || eglSurface == EGL_NO_SURFACE) {
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con_printf(CON_URGENT, "EGL: Error creating window surface");
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} else {
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con_printf(CON_DEBUG, "EGL: Created window surface");
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}
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}
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if (eglContext == EGL_NO_CONTEXT) {
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eglContext = eglCreateContext(eglDisplay, eglConfig, EGL_NO_CONTEXT, contextAttribs);
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if ((!TestEGLError("eglCreateContext")) || eglContext == EGL_NO_CONTEXT) {
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con_printf(CON_URGENT, "EGL: Error creating context");
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} else {
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con_printf(CON_DEBUG, "EGL: Created context");
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}
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}
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eglMakeCurrent(eglDisplay, eglSurface, eglSurface, eglContext);
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if (!TestEGLError("eglMakeCurrent")) {
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con_printf(CON_URGENT, "EGL: Error making current");
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} else {
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con_printf(CON_DEBUG, "EGL: made context current");
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}
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#endif
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linedotscale = ((x/640<y/480?x/640:y/480)<1?1:(x/640<y/480?x/640:y/480));
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gl_initialized=1;
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return 0;
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}
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int gr_check_fullscreen(void)
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{
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return (sdl_video_flags & SDL_FULLSCREEN)?1:0;
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}
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int gr_toggle_fullscreen(void)
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{
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if (sdl_video_flags & SDL_FULLSCREEN)
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sdl_video_flags &= ~SDL_FULLSCREEN;
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else
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sdl_video_flags |= SDL_FULLSCREEN;
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if (gl_initialized)
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{
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if (sdl_no_modeswitch == 0) {
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if (!SDL_VideoModeOK(SM_W(Game_screen_mode), SM_H(Game_screen_mode), GameArg.DbgBpp, sdl_video_flags))
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{
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con_printf(CON_URGENT,"Cannot set %ix%i. Fallback to 640x480",SM_W(Game_screen_mode), SM_H(Game_screen_mode));
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Game_screen_mode=SM(640,480);
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}
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if (!SDL_SetVideoMode(SM_W(Game_screen_mode), SM_H(Game_screen_mode), GameArg.DbgBpp, sdl_video_flags))
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{
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Error("Could not set %dx%dx%d opengl video mode: %s\n", SM_W(Game_screen_mode), SM_H(Game_screen_mode), GameArg.DbgBpp, SDL_GetError());
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}
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}
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#ifdef RPI
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if (rpi_setup_element(SM_W(Game_screen_mode), SM_H(Game_screen_mode), sdl_video_flags, 1)) {
|
|
Error("RPi: Could not set up %dx%d element\n", SM_W(Game_screen_mode), SM_H(Game_screen_mode));
|
|
}
|
|
#endif
|
|
}
|
|
|
|
gr_remap_color_fonts();
|
|
gr_remap_mono_fonts();
|
|
|
|
if (gl_initialized) // update viewing values for menus
|
|
{
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
#ifdef OGLES
|
|
glOrthof(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
|
|
#else
|
|
glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
|
|
#endif
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();//clear matrix
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
ogl_smash_texture_list_internal();//if we are or were fullscreen, changing vid mode will invalidate current textures
|
|
}
|
|
GameCfg.WindowMode = (sdl_video_flags & SDL_FULLSCREEN)?0:1;
|
|
return (sdl_video_flags & SDL_FULLSCREEN)?1:0;
|
|
}
|
|
|
|
static void ogl_init_state(void)
|
|
{
|
|
/* select clearing (background) color */
|
|
glClearColor(0.0, 0.0, 0.0, 0.0);
|
|
|
|
/* initialize viewing values */
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity();
|
|
#ifdef OGLES
|
|
glOrthof(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
|
|
#else
|
|
glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
|
|
#endif
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();//clear matrix
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
gr_palette_step_up(0,0,0);//in case its left over from in game
|
|
|
|
ogl_init_pixel_buffers(grd_curscreen->sc_w, grd_curscreen->sc_h);
|
|
}
|
|
|
|
// Set the buffer to draw to. 0 is front, 1 is back
|
|
void gr_set_draw_buffer(int buf)
|
|
{
|
|
#ifndef OGLES
|
|
glDrawBuffer((buf == 0) ? GL_FRONT : GL_BACK);
|
|
#endif
|
|
}
|
|
|
|
const char *gl_vendor, *gl_renderer, *gl_version, *gl_extensions;
|
|
|
|
static void ogl_get_verinfo(void)
|
|
{
|
|
#ifndef OGLES
|
|
gl_vendor = (const char *) glGetString (GL_VENDOR);
|
|
gl_renderer = (const char *) glGetString (GL_RENDERER);
|
|
gl_version = (const char *) glGetString (GL_VERSION);
|
|
gl_extensions = (const char *) glGetString (GL_EXTENSIONS);
|
|
|
|
con_printf(CON_VERBOSE, "OpenGL: vendor: %s\nOpenGL: renderer: %s\nOpenGL: version: %s",gl_vendor,gl_renderer,gl_version);
|
|
|
|
#ifdef _WIN32
|
|
dglMultiTexCoord2fARB = (glMultiTexCoord2fARB_fp)wglGetProcAddress("glMultiTexCoord2fARB");
|
|
dglActiveTextureARB = (glActiveTextureARB_fp)wglGetProcAddress("glActiveTextureARB");
|
|
dglMultiTexCoord2fSGIS = (glMultiTexCoord2fSGIS_fp)wglGetProcAddress("glMultiTexCoord2fSGIS");
|
|
dglSelectTextureSGIS = (glSelectTextureSGIS_fp)wglGetProcAddress("glSelectTextureSGIS");
|
|
#endif
|
|
|
|
//add driver specific hacks here. whee.
|
|
if ((d_stricmp(gl_renderer,"Mesa NVIDIA RIVA 1.0\n")==0 || d_stricmp(gl_renderer,"Mesa NVIDIA RIVA 1.2\n")==0) && d_stricmp(gl_version,"1.2 Mesa 3.0")==0)
|
|
{
|
|
GameArg.DbgGlIntensity4Ok=0;//ignores alpha, always black background instead of transparent.
|
|
GameArg.DbgGlReadPixelsOk=0;//either just returns all black, or kills the X server entirely
|
|
GameArg.DbgGlGetTexLevelParamOk=0;//returns random data..
|
|
}
|
|
if (d_stricmp(gl_vendor,"Matrox Graphics Inc.")==0)
|
|
{
|
|
//displays garbage. reported by
|
|
// redomen@crcwnet.com (render="Matrox G400" version="1.1.3 5.52.015")
|
|
// orulz (Matrox G200)
|
|
GameArg.DbgGlIntensity4Ok=0;
|
|
}
|
|
#ifdef macintosh
|
|
if (d_stricmp(gl_renderer,"3dfx Voodoo 3")==0) // strangely, includes Voodoo 2
|
|
GameArg.DbgGlGetTexLevelParamOk=0; // Always returns 0
|
|
#endif
|
|
|
|
#ifndef NDEBUG
|
|
con_printf(CON_VERBOSE,"gl_intensity4:%i gl_luminance4_alpha4:%i gl_rgba2:%i gl_readpixels:%i gl_gettexlevelparam:%i",GameArg.DbgGlIntensity4Ok,GameArg.DbgGlLuminance4Alpha4Ok,GameArg.DbgGlRGBA2Ok,GameArg.DbgGlReadPixelsOk,GameArg.DbgGlGetTexLevelParamOk);
|
|
#endif
|
|
if (!d_stricmp(gl_extensions,"GL_EXT_texture_filter_anisotropic")==0)
|
|
{
|
|
glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &ogl_maxanisotropy);
|
|
con_printf(CON_VERBOSE,"ogl_maxanisotropy:%f",ogl_maxanisotropy);
|
|
}
|
|
else if (GameCfg.TexFilt >= 3)
|
|
GameCfg.TexFilt = 2;
|
|
#endif
|
|
}
|
|
|
|
// returns possible (fullscreen) resolutions if any.
|
|
int gr_list_modes( u_int32_t gsmodes[] )
|
|
{
|
|
SDL_Rect** modes;
|
|
int i = 0, modesnum = 0;
|
|
#ifdef OGLES
|
|
int sdl_check_flags = SDL_FULLSCREEN; // always use Fullscreen as lead.
|
|
#else
|
|
int sdl_check_flags = SDL_OPENGL | SDL_FULLSCREEN; // always use Fullscreen as lead.
|
|
#endif
|
|
|
|
if (sdl_no_modeswitch) {
|
|
/* TODO: we could use the tvservice to list resolutions on the RPi */
|
|
return 0;
|
|
}
|
|
|
|
modes = SDL_ListModes(NULL, sdl_check_flags);
|
|
|
|
if (modes == (SDL_Rect**)0) // check if we get any modes - if not, return 0
|
|
return 0;
|
|
|
|
|
|
if (modes == (SDL_Rect**)-1)
|
|
{
|
|
return 0; // can obviously use any resolution... strange!
|
|
}
|
|
else
|
|
{
|
|
for (i = 0; modes[i]; ++i)
|
|
{
|
|
if (modes[i]->w > 0xFFF0 || modes[i]->h > 0xFFF0 // resolutions saved in 32bits. so skip bigger ones (unrealistic in 2010) (changed to 0xFFF0 to fix warning)
|
|
|| modes[i]->w < 320 || modes[i]->h < 200) // also skip everything smaller than 320x200
|
|
continue;
|
|
gsmodes[modesnum] = SM(modes[i]->w,modes[i]->h);
|
|
modesnum++;
|
|
if (modesnum >= 50) // that really seems to be enough big boy.
|
|
break;
|
|
}
|
|
return modesnum;
|
|
}
|
|
}
|
|
|
|
int gr_check_mode(u_int32_t mode)
|
|
{
|
|
unsigned int w, h;
|
|
|
|
w=SM_W(mode);
|
|
h=SM_H(mode);
|
|
|
|
if (sdl_no_modeswitch == 0) {
|
|
return SDL_VideoModeOK(w, h, GameArg.DbgBpp, sdl_video_flags);
|
|
} else {
|
|
// just tell the caller that any mode is valid...
|
|
return 32;
|
|
}
|
|
}
|
|
|
|
int gr_set_mode(u_int32_t mode)
|
|
{
|
|
unsigned int w, h;
|
|
unsigned char *gr_bm_data;
|
|
|
|
if (mode<=0)
|
|
return 0;
|
|
|
|
w=SM_W(mode);
|
|
h=SM_H(mode);
|
|
|
|
if (!gr_check_mode(mode))
|
|
{
|
|
con_printf(CON_URGENT,"Cannot set %ix%i. Fallback to 640x480",w,h);
|
|
w=640;
|
|
h=480;
|
|
Game_screen_mode=mode=SM(w,h);
|
|
}
|
|
|
|
gr_bm_data=grd_curscreen->sc_canvas.cv_bitmap.bm_data;//since we use realloc, we want to keep this pointer around.
|
|
unsigned char *gr_new_bm_data = (unsigned char *)d_realloc(gr_bm_data,w*h);
|
|
if (!gr_new_bm_data)
|
|
return 0;
|
|
memset( grd_curscreen, 0, sizeof(grs_screen));
|
|
grd_curscreen->sc_mode = mode;
|
|
grd_curscreen->sc_w = w;
|
|
grd_curscreen->sc_h = h;
|
|
grd_curscreen->sc_aspect = fixdiv(grd_curscreen->sc_w*GameCfg.AspectX,grd_curscreen->sc_h*GameCfg.AspectY);
|
|
gr_init_canvas(&grd_curscreen->sc_canvas, gr_new_bm_data, BM_OGL, w, h);
|
|
gr_set_current_canvas(NULL);
|
|
|
|
ogl_init_window(w,h);//platform specific code
|
|
ogl_get_verinfo();
|
|
OGL_VIEWPORT(0,0,w,h);
|
|
ogl_init_state();
|
|
gamefont_choose_game_font(w,h);
|
|
gr_remap_color_fonts();
|
|
gr_remap_mono_fonts();
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define GLstrcmptestr(a,b) if (d_stricmp(a,#b)==0 || d_stricmp(a,"GL_" #b)==0)return GL_ ## b;
|
|
|
|
#ifdef _WIN32
|
|
static const char OglLibPath[]="opengl32.dll";
|
|
|
|
static int ogl_rt_loaded=0;
|
|
static int ogl_init_load_library(void)
|
|
{
|
|
int retcode=0;
|
|
if (!ogl_rt_loaded)
|
|
{
|
|
retcode = OpenGL_LoadLibrary(true, OglLibPath);
|
|
if(retcode)
|
|
{
|
|
if(!glEnd)
|
|
{
|
|
Error("Opengl: Functions not imported\n");
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Error("Opengl: error loading %s\n", OglLibPath);
|
|
}
|
|
ogl_rt_loaded=1;
|
|
}
|
|
return retcode;
|
|
}
|
|
#endif
|
|
|
|
void gr_set_attributes(void)
|
|
{
|
|
#ifndef OGLES
|
|
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
|
|
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE,0);
|
|
SDL_GL_SetAttribute(SDL_GL_ACCUM_RED_SIZE,0);
|
|
SDL_GL_SetAttribute(SDL_GL_ACCUM_GREEN_SIZE,0);
|
|
SDL_GL_SetAttribute(SDL_GL_ACCUM_BLUE_SIZE,0);
|
|
SDL_GL_SetAttribute(SDL_GL_ACCUM_ALPHA_SIZE,0);
|
|
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER,1);
|
|
SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL,GameCfg.VSync);
|
|
if (GameCfg.Multisample)
|
|
{
|
|
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
|
|
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 4);
|
|
}
|
|
else
|
|
{
|
|
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 0);
|
|
SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 0);
|
|
}
|
|
#endif
|
|
ogl_smash_texture_list_internal();
|
|
gr_remap_color_fonts();
|
|
gr_remap_mono_fonts();
|
|
}
|
|
|
|
int gr_init(int mode)
|
|
{
|
|
#ifdef RPI
|
|
char sdl_driver[32];
|
|
char *sdl_driver_ret;
|
|
#endif
|
|
|
|
int retcode;
|
|
|
|
// Only do this function once!
|
|
if (gr_installed==1)
|
|
return -1;
|
|
|
|
#ifdef RPI
|
|
// Initialize the broadcom host library
|
|
// we have to call this before we can create an OpenGL ES context
|
|
bcm_host_init();
|
|
|
|
// Check if we are running with SDL directfb driver ...
|
|
sdl_driver_ret=SDL_VideoDriverName(sdl_driver,32);
|
|
if (sdl_driver_ret) {
|
|
if (strcmp(sdl_driver_ret,"x11")) {
|
|
con_printf(CON_URGENT,"RPi: activating hack for console driver");
|
|
sdl_no_modeswitch=1;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#ifdef _WIN32
|
|
ogl_init_load_library();
|
|
#endif
|
|
|
|
if (!GameCfg.WindowMode && !GameArg.SysWindow)
|
|
sdl_video_flags|=SDL_FULLSCREEN;
|
|
|
|
if (GameArg.SysNoBorders)
|
|
sdl_video_flags|=SDL_NOFRAME;
|
|
|
|
gr_set_attributes();
|
|
|
|
ogl_init_texture_list_internal();
|
|
|
|
CALLOC( grd_curscreen,grs_screen,1 );
|
|
grd_curscreen->sc_canvas.cv_bitmap.bm_data = NULL;
|
|
|
|
// Set the mode.
|
|
if ((retcode=gr_set_mode(mode)))
|
|
return retcode;
|
|
|
|
grd_curscreen->sc_canvas.cv_color = 0;
|
|
grd_curscreen->sc_canvas.cv_fade_level = GR_FADE_OFF;
|
|
grd_curscreen->sc_canvas.cv_blend_func = GR_BLEND_NORMAL;
|
|
grd_curscreen->sc_canvas.cv_drawmode = 0;
|
|
grd_curscreen->sc_canvas.cv_font = NULL;
|
|
grd_curscreen->sc_canvas.cv_font_fg_color = 0;
|
|
grd_curscreen->sc_canvas.cv_font_bg_color = 0;
|
|
gr_set_current_canvas( &grd_curscreen->sc_canvas );
|
|
|
|
ogl_init_pixel_buffers(256, 128); // for gamefont_init
|
|
|
|
gr_installed = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void gr_close()
|
|
{
|
|
ogl_brightness_r = ogl_brightness_g = ogl_brightness_b = 0;
|
|
|
|
if (gl_initialized)
|
|
{
|
|
ogl_smash_texture_list_internal();
|
|
}
|
|
|
|
if (grd_curscreen)
|
|
{
|
|
if (grd_curscreen->sc_canvas.cv_bitmap.bm_data)
|
|
d_free(grd_curscreen->sc_canvas.cv_bitmap.bm_data);
|
|
d_free(grd_curscreen);
|
|
}
|
|
ogl_close_pixel_buffers();
|
|
#ifdef _WIN32
|
|
if (ogl_rt_loaded)
|
|
OpenGL_LoadLibrary(false, OglLibPath);
|
|
#endif
|
|
|
|
#ifdef OGLES
|
|
ogles_destroy();
|
|
#ifdef RPI
|
|
con_printf(CON_DEBUG, "RPi: cleanuing up");
|
|
if (dispman_display != DISPMANX_NO_HANDLE) {
|
|
rpi_destroy_element();
|
|
con_printf(CON_DEBUG, "RPi: closing display");
|
|
vc_dispmanx_display_close(dispman_display);
|
|
dispman_display = DISPMANX_NO_HANDLE;
|
|
}
|
|
#endif
|
|
#endif
|
|
}
|
|
|
|
void ogl_upixelc(int x, int y, int c)
|
|
{
|
|
GLfloat vertex_array[] = {
|
|
static_cast<GLfloat>((x+grd_curcanv->cv_bitmap.bm_x)/(float)last_width),
|
|
static_cast<GLfloat>(1.0-(y+grd_curcanv->cv_bitmap.bm_y)/(float)last_height)
|
|
};
|
|
GLfloat color_array[] = {
|
|
static_cast<GLfloat>(CPAL2Tr(c)), static_cast<GLfloat>(CPAL2Tg(c)), static_cast<GLfloat>(CPAL2Tb(c)), 1.0,
|
|
static_cast<GLfloat>(CPAL2Tr(c)), static_cast<GLfloat>(CPAL2Tg(c)), static_cast<GLfloat>(CPAL2Tb(c)), 1.0,
|
|
static_cast<GLfloat>(CPAL2Tr(c)), static_cast<GLfloat>(CPAL2Tg(c)), static_cast<GLfloat>(CPAL2Tb(c)), 1.0,
|
|
static_cast<GLfloat>(CPAL2Tr(c)), static_cast<GLfloat>(CPAL2Tg(c)), static_cast<GLfloat>(CPAL2Tb(c)), 1.0
|
|
};
|
|
|
|
r_upixelc++;
|
|
OGL_DISABLE(TEXTURE_2D);
|
|
glPointSize(linedotscale);
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glEnableClientState(GL_COLOR_ARRAY);
|
|
glVertexPointer(2, GL_FLOAT, 0, vertex_array);
|
|
glColorPointer(4, GL_FLOAT, 0, color_array);
|
|
glDrawArrays(GL_POINTS, 0, 1);
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
glDisableClientState(GL_COLOR_ARRAY);
|
|
}
|
|
|
|
unsigned char ogl_ugpixel( grs_bitmap * bitmap, int x, int y )
|
|
{
|
|
GLint gl_draw_buffer;
|
|
ubyte buf[4];
|
|
|
|
#ifndef OGLES
|
|
glGetIntegerv(GL_DRAW_BUFFER, &gl_draw_buffer);
|
|
glReadBuffer(gl_draw_buffer);
|
|
#endif
|
|
|
|
glReadPixels(bitmap->bm_x + x, SHEIGHT - bitmap->bm_y - y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, buf);
|
|
|
|
return gr_find_closest_color(buf[0]/4, buf[1]/4, buf[2]/4);
|
|
}
|
|
|
|
void ogl_urect(int left,int top,int right,int bot)
|
|
{
|
|
GLfloat xo, yo, xf, yf, color_r, color_g, color_b, color_a;
|
|
GLfloat color_array[] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
|
|
GLfloat vertex_array[] = { 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 };
|
|
int c=COLOR;
|
|
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glEnableClientState(GL_COLOR_ARRAY);
|
|
|
|
xo=(left+grd_curcanv->cv_bitmap.bm_x)/(float)last_width;
|
|
xf = (right + 1 + grd_curcanv->cv_bitmap.bm_x) / (float)last_width;
|
|
yo=1.0-(top+grd_curcanv->cv_bitmap.bm_y)/(float)last_height;
|
|
yf = 1.0 - (bot + 1 + grd_curcanv->cv_bitmap.bm_y) / (float)last_height;
|
|
|
|
OGL_DISABLE(TEXTURE_2D);
|
|
|
|
color_r = CPAL2Tr(c);
|
|
color_g = CPAL2Tg(c);
|
|
color_b = CPAL2Tb(c);
|
|
|
|
if (grd_curcanv->cv_fade_level >= GR_FADE_OFF)
|
|
color_a = 1.0;
|
|
else
|
|
color_a = 1.0 - (float)grd_curcanv->cv_fade_level / ((float)GR_FADE_LEVELS - 1.0);
|
|
|
|
color_array[0] = color_array[4] = color_array[8] = color_array[12] = color_r;
|
|
color_array[1] = color_array[5] = color_array[9] = color_array[13] = color_g;
|
|
color_array[2] = color_array[6] = color_array[10] = color_array[14] = color_b;
|
|
color_array[3] = color_array[7] = color_array[11] = color_array[15] = color_a;
|
|
|
|
vertex_array[0] = xo;
|
|
vertex_array[1] = yo;
|
|
vertex_array[2] = xo;
|
|
vertex_array[3] = yf;
|
|
vertex_array[4] = xf;
|
|
vertex_array[5] = yf;
|
|
vertex_array[6] = xf;
|
|
vertex_array[7] = yo;
|
|
|
|
glVertexPointer(2, GL_FLOAT, 0, vertex_array);
|
|
glColorPointer(4, GL_FLOAT, 0, color_array);
|
|
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);//replaced GL_QUADS
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
}
|
|
|
|
void ogl_ulinec(int left,int top,int right,int bot,int c)
|
|
{
|
|
GLfloat xo,yo,xf,yf;
|
|
GLfloat fade_alpha = (grd_curcanv->cv_fade_level >= GR_FADE_OFF)?1.0:1.0 - (float)grd_curcanv->cv_fade_level / ((float)GR_FADE_LEVELS - 1.0);
|
|
GLfloat color_array[] = {
|
|
static_cast<GLfloat>(CPAL2Tr(c)), static_cast<GLfloat>(CPAL2Tg(c)), static_cast<GLfloat>(CPAL2Tb(c)), fade_alpha,
|
|
static_cast<GLfloat>(CPAL2Tr(c)), static_cast<GLfloat>(CPAL2Tg(c)), static_cast<GLfloat>(CPAL2Tb(c)), fade_alpha,
|
|
static_cast<GLfloat>(CPAL2Tr(c)), static_cast<GLfloat>(CPAL2Tg(c)), static_cast<GLfloat>(CPAL2Tb(c)), 1.0,
|
|
static_cast<GLfloat>(CPAL2Tr(c)), static_cast<GLfloat>(CPAL2Tg(c)), static_cast<GLfloat>(CPAL2Tb(c)), fade_alpha
|
|
};
|
|
GLfloat vertex_array[] = { 0.0, 0.0, 0.0, 0.0 };
|
|
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glEnableClientState(GL_COLOR_ARRAY);
|
|
|
|
xo = (left + grd_curcanv->cv_bitmap.bm_x + 0.5) / (float)last_width;
|
|
xf = (right + grd_curcanv->cv_bitmap.bm_x + 0.5) / (float)last_width;
|
|
yo = 1.0 - (top + grd_curcanv->cv_bitmap.bm_y + 0.5) / (float)last_height;
|
|
yf = 1.0 - (bot + grd_curcanv->cv_bitmap.bm_y + 0.5) / (float)last_height;
|
|
|
|
OGL_DISABLE(TEXTURE_2D);
|
|
|
|
vertex_array[0] = xo;
|
|
vertex_array[1] = yo;
|
|
vertex_array[2] = xf;
|
|
vertex_array[3] = yf;
|
|
|
|
glVertexPointer(2, GL_FLOAT, 0, vertex_array);
|
|
glColorPointer(4, GL_FLOAT, 0, color_array);
|
|
glDrawArrays(GL_LINES, 0, 2);
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
glDisableClientState(GL_COLOR_ARRAY);
|
|
}
|
|
|
|
GLfloat last_r=0, last_g=0, last_b=0;
|
|
int do_pal_step=0;
|
|
|
|
void ogl_do_palfx(void)
|
|
{
|
|
GLfloat color_array[] = { last_r, last_g, last_b, 1.0, last_r, last_g, last_b, 1.0, last_r, last_g, last_b, 1.0, last_r, last_g, last_b, 1.0 };
|
|
GLfloat vertex_array[] = { 0,0,0,1,1,1,1,0 };
|
|
|
|
OGL_DISABLE(TEXTURE_2D);
|
|
|
|
glEnableClientState(GL_VERTEX_ARRAY);
|
|
glEnableClientState(GL_COLOR_ARRAY);
|
|
|
|
if (do_pal_step)
|
|
{
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_ONE,GL_ONE);
|
|
}
|
|
else
|
|
return;
|
|
|
|
glVertexPointer(2, GL_FLOAT, 0, vertex_array);
|
|
glColorPointer(4, GL_FLOAT, 0, color_array);
|
|
glDrawArrays(GL_TRIANGLE_FAN, 0, 4);//replaced GL_QUADS
|
|
glDisableClientState(GL_VERTEX_ARRAY);
|
|
glDisableClientState(GL_COLOR_ARRAY);
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
}
|
|
|
|
int ogl_brightness_ok = 0;
|
|
int ogl_brightness_r = 0, ogl_brightness_g = 0, ogl_brightness_b = 0;
|
|
static int old_b_r = 0, old_b_g = 0, old_b_b = 0;
|
|
|
|
void gr_palette_step_up(int r, int g, int b)
|
|
{
|
|
old_b_r = ogl_brightness_r;
|
|
old_b_g = ogl_brightness_g;
|
|
old_b_b = ogl_brightness_b;
|
|
|
|
ogl_brightness_r = max(r + gr_palette_gamma, 0);
|
|
ogl_brightness_g = max(g + gr_palette_gamma, 0);
|
|
ogl_brightness_b = max(b + gr_palette_gamma, 0);
|
|
|
|
if (!ogl_brightness_ok)
|
|
{
|
|
last_r = ogl_brightness_r / 63.0;
|
|
last_g = ogl_brightness_g / 63.0;
|
|
last_b = ogl_brightness_b / 63.0;
|
|
|
|
do_pal_step = (r || g || b || gr_palette_gamma);
|
|
}
|
|
else
|
|
{
|
|
do_pal_step = 0;
|
|
}
|
|
}
|
|
|
|
#undef min
|
|
using std::min;
|
|
|
|
void gr_palette_load( palette_array_t &pal )
|
|
{
|
|
copy_bound_palette(gr_current_pal, pal);
|
|
|
|
gr_palette_step_up(0, 0, 0); // make ogl_setbrightness_internal get run so that menus get brightened too.
|
|
init_computed_colors();
|
|
}
|
|
|
|
void gr_palette_read(palette_array_t &pal)
|
|
{
|
|
copy_bound_palette(pal, gr_current_pal);
|
|
}
|
|
|
|
#define GL_BGR_EXT 0x80E0
|
|
|
|
struct TGA_header
|
|
{
|
|
unsigned char TGAheader[12];
|
|
unsigned char header[6];
|
|
};
|
|
|
|
//writes out an uncompressed RGB .tga file
|
|
//if we got really spiffy, we could optionally link in libpng or something, and use that.
|
|
static void write_bmp(char *savename,unsigned w,unsigned h)
|
|
{
|
|
PHYSFS_file* TGAFile;
|
|
TGA_header TGA;
|
|
GLbyte HeightH,HeightL,WidthH,WidthL;
|
|
unsigned int pixel;
|
|
|
|
RAIIdubyte buf;
|
|
CALLOC( buf,unsigned char, w*h*4);
|
|
|
|
RAIIdubyte rgbaBuf;
|
|
CALLOC(rgbaBuf, unsigned char, w * h * 4);
|
|
glReadPixels(0, 0, w, h, GL_RGBA, GL_UNSIGNED_BYTE, rgbaBuf);
|
|
for(pixel = 0; pixel < w * h; pixel++) {
|
|
*(buf + pixel * 3) = *(rgbaBuf + pixel * 4 + 2);
|
|
*(buf + pixel * 3 + 1) = *(rgbaBuf + pixel * 4 + 1);
|
|
*(buf + pixel * 3 + 2) = *(rgbaBuf + pixel * 4);
|
|
}
|
|
|
|
if (!(TGAFile = PHYSFSX_openWriteBuffered(savename)))
|
|
{
|
|
con_printf(CON_URGENT,"Could not create TGA file to dump screenshot!");
|
|
return;
|
|
}
|
|
|
|
HeightH = (GLbyte)(h / 256);
|
|
HeightL = (GLbyte)(h % 256);
|
|
WidthH = (GLbyte)(w / 256);
|
|
WidthL = (GLbyte)(w % 256);
|
|
// Write TGA Header
|
|
TGA.TGAheader[0] = 0;
|
|
TGA.TGAheader[1] = 0;
|
|
TGA.TGAheader[2] = 2;
|
|
TGA.TGAheader[3] = 0;
|
|
TGA.TGAheader[4] = 0;
|
|
TGA.TGAheader[5] = 0;
|
|
TGA.TGAheader[6] = 0;
|
|
TGA.TGAheader[7] = 0;
|
|
TGA.TGAheader[8] = 0;
|
|
TGA.TGAheader[9] = 0;
|
|
TGA.TGAheader[10] = 0;
|
|
TGA.TGAheader[11] = 0;
|
|
TGA.header[0] = (GLbyte) WidthL;
|
|
TGA.header[1] = (GLbyte) WidthH;
|
|
TGA.header[2] = (GLbyte) HeightL;
|
|
TGA.header[3] = (GLbyte) HeightH;
|
|
TGA.header[4] = (GLbyte) 24;
|
|
TGA.header[5] = 0;
|
|
PHYSFS_write(TGAFile,&TGA,sizeof(TGA_header),1);
|
|
PHYSFS_write(TGAFile,buf,w*h*3*sizeof(unsigned char),1);
|
|
PHYSFS_close(TGAFile);
|
|
}
|
|
|
|
void save_screen_shot(int automap_flag)
|
|
{
|
|
static int savenum=0;
|
|
char savename[13+sizeof(SCRNS_DIR)];
|
|
|
|
if (!GameArg.DbgGlReadPixelsOk){
|
|
if (!automap_flag)
|
|
HUD_init_message_literal(HM_DEFAULT, "glReadPixels not supported on your configuration");
|
|
return;
|
|
}
|
|
|
|
stop_time();
|
|
|
|
if (!PHYSFSX_exists(SCRNS_DIR,0))
|
|
PHYSFS_mkdir(SCRNS_DIR); //try making directory
|
|
|
|
do
|
|
{
|
|
sprintf(savename, "%sscrn%04d.tga",SCRNS_DIR, savenum++);
|
|
} while (PHYSFSX_exists(savename,0));
|
|
|
|
if (!automap_flag)
|
|
HUD_init_message(HM_DEFAULT, "%s 'scrn%04d.tga'", TXT_DUMPING_SCREEN, savenum-1 );
|
|
|
|
#ifndef OGLES
|
|
glReadBuffer(GL_FRONT);
|
|
#endif
|
|
|
|
write_bmp(savename,grd_curscreen->sc_w,grd_curscreen->sc_h);
|
|
|
|
start_time();
|
|
}
|