example_bass: port graphics code from D3D to OGL
Since BASS is available for MacOS X and Linux as well as Windows, it makes sense to port the example to OpenGL rather than Direct3D9. Use SDL to get an OpenGL context in a portable fashion.
This commit is contained in:
Rasmus Kaae
Erik Faye-Lund
parent
b45b7af70f
commit
8fb9aa6257
@ -1,13 +1,18 @@
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/* Copyright (C) 2007-2008 Erik Faye-Lund and Egbert Teeselink
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* For conditions of distribution and use, see copyright notice in COPYING
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* sdl+opengl examle by rasmus/loonies http://visualizethis.tumblr.com 2011
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*/
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#ifdef _WIN32
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <d3d9.h>
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#include <d3dx9.h>
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#endif
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#include <SDL.h>
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#undef main /* avoid SDL's nasty SDLmain hack */
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#include <SDL_opengl.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <math.h>
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#include "../sync/sync.h"
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#include "bass.h"
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@ -60,7 +65,7 @@ static void die(const char *fmt, ...)
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vsnprintf(temp, sizeof(temp), fmt, va);
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va_end(va);
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#ifdef _CONSOLE
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#if !defined(_WIN32) || defined(_CONSOLE)
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fprintf(stderr, "*** error: %s\n", temp);
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#else
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MessageBox(NULL, temp, NULL, MB_OK | MB_ICONERROR);
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@ -72,42 +77,83 @@ static void die(const char *fmt, ...)
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static const unsigned int width = 800;
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static const unsigned int height = 600;
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SDL_Surface *setup_sdl()
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{
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if (SDL_Init(SDL_INIT_VIDEO))
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die("%s", SDL_GetError());
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SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
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SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
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SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
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SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, 1);
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return SDL_SetVideoMode(width, height, 32, SDL_OPENGL);
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}
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void draw_cube()
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{
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glBegin(GL_QUADS);
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// Front Face
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glColor3ub(255, 0, 0);
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glVertex3f(-1.0f, -1.0f, 1.0f);
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glVertex3f( 1.0f, -1.0f, 1.0f);
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glVertex3f( 1.0f, 1.0f, 1.0f);
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glVertex3f(-1.0f, 1.0f, 1.0f);
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// Back Face
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glColor3ub(0, 255, 0);
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glVertex3f(-1.0f, -1.0f, -1.0f);
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glVertex3f(-1.0f, 1.0f, -1.0f);
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glVertex3f( 1.0f, 1.0f, -1.0f);
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glVertex3f( 1.0f, -1.0f, -1.0f);
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// Top Face
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glColor3ub(0, 0, 255);
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glVertex3f(-1.0f, 1.0f, -1.0f);
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glVertex3f(-1.0f, 1.0f, 1.0f);
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glVertex3f( 1.0f, 1.0f, 1.0f);
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glVertex3f( 1.0f, 1.0f, -1.0f);
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// Bottom Face
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glColor3ub(255, 255, 0);
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glVertex3f(-1.0f, -1.0f, -1.0f);
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glVertex3f( 1.0f, -1.0f, -1.0f);
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glVertex3f( 1.0f, -1.0f, 1.0f);
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glVertex3f(-1.0f, -1.0f, 1.0f);
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// Right face
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glColor3ub(255, 0, 255);
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glVertex3f( 1.0f, -1.0f, -1.0f);
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glVertex3f( 1.0f, 1.0f, -1.0f);
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glVertex3f( 1.0f, 1.0f, 1.0f);
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glVertex3f( 1.0f, -1.0f, 1.0f);
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// Left Face
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glColor3ub(255, 255, 255);
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glVertex3f(-1.0f, -1.0f, -1.0f);
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glVertex3f(-1.0f, -1.0f, 1.0f);
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glVertex3f(-1.0f, 1.0f, 1.0f);
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glVertex3f(-1.0f, 1.0f, -1.0f);
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glEnd();
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}
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int main(int argc, char *argv[])
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{
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IDirect3D9 *d3d;
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IDirect3DDevice9 *dev;
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HWND hwnd;
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SDL_Surface *screen;
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HSTREAM stream;
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static D3DPRESENT_PARAMETERS present_parameters = {
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width, height, D3DFMT_X8R8G8B8, 3,
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D3DMULTISAMPLE_NONE, 0, D3DSWAPEFFECT_DISCARD,
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0, TRUE, 1, D3DFMT_D24S8, 0, 0
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};
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const struct sync_track *clear_r, *clear_g, *clear_b;
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const struct sync_track *cam_rot, *cam_dist;
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/* initialize directx */
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d3d = Direct3DCreate9(D3D_SDK_VERSION);
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if (!d3d)
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die("update directx, fool.");
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/* create a window */
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hwnd = CreateWindowEx(0, "static", "GNU Rocket Example",
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WS_POPUP | WS_VISIBLE, 0, 0, width, height, 0, 0,
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GetModuleHandle(0), 0);
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if (!hwnd)
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die("failed to create window");
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/* create the device */
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if (FAILED(d3d->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
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hwnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &present_parameters,
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&dev)))
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die("could not create device. you computer SUCKS!");
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screen = setup_sdl();
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/* init BASS */
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if (!BASS_Init(-1, 44100, 0, hwnd, 0))
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if (!BASS_Init(-1, 44100, 0, 0, 0))
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die("failed to init bass");
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stream = BASS_StreamCreateFile(false, "tune.ogg", 0, 0, 0);
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if (!stream)
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@ -130,11 +176,6 @@ int main(int argc, char *argv[])
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cam_rot = sync_get_track(rocket, "cam.rot"),
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cam_dist = sync_get_track(rocket, "cam.dist");
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LPD3DXMESH cubeMesh = NULL;
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if (FAILED(D3DXCreateBox(dev, 1.0f, 1.0f, 1.0f,
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&cubeMesh, NULL)))
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return -1;
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/* let's roll! */
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BASS_Start();
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BASS_ChannelPlay(stream, false);
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@ -149,44 +190,38 @@ int main(int argc, char *argv[])
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/* draw */
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D3DXCOLOR clearColor(
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sync_get_val(clear_r, row),
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sync_get_val(clear_g, row),
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sync_get_val(clear_b, row),
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0.0
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);
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dev->BeginScene();
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dev->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER | D3DCLEAR_STENCIL, clearColor, 1.0f, 0);
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glClearColor(sync_get_val(clear_r, row),
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sync_get_val(clear_g, row),
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sync_get_val(clear_b, row), 1.0f);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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float rot = sync_get_val(cam_rot, row);
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float dist = sync_get_val(cam_dist, row);
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D3DXVECTOR3 eye(sin(rot) * dist, 0, cos(rot) * dist);
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D3DXVECTOR3 at(0, 0, 0);
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D3DXVECTOR3 up(0, 1, 0);
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D3DXMATRIX view;
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D3DXVECTOR3 dir = eye + at;
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D3DXMatrixLookAtLH(&view, &dir, &at, &up);
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dev->SetTransform(D3DTS_VIEW, &view);
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D3DXMATRIX proj;
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D3DXMatrixPerspectiveFovLH(&proj, D3DXToRadian(60), 4.0f / 3, 0.1f, 1000.f);
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dev->SetTransform(D3DTS_PROJECTION, &proj);
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cubeMesh->DrawSubset(0);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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gluPerspective(60.0f, 4.0f / 3, 0.1f, 100.0f);
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dev->EndScene();
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dev->Present(0, 0, 0, 0);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glPushMatrix();
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gluLookAt(sin(rot) * dist, 0, cos(rot) * dist,
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0, 0, 0,
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0, 1, 0);
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glEnable(GL_DEPTH_TEST);
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draw_cube();
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glPopMatrix();
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SDL_GL_SwapBuffers();
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BASS_Update(0); /* decrease the chance of missing vsync */
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MSG msg;
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while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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if (WM_QUIT == msg.message ||
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(WM_KEYDOWN == msg.message &&
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VK_ESCAPE == LOWORD(msg.wParam)))
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SDL_Event e;
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while (SDL_PollEvent(&e)) {
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if (e.type == SDL_QUIT ||
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(e.type == SDL_KEYDOWN &&
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e.key.keysym.sym == SDLK_ESCAPE))
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done = true;
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}
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}
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@ -198,10 +233,7 @@ int main(int argc, char *argv[])
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BASS_StreamFree(stream);
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BASS_Free();
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dev->Release();
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d3d->Release();
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DestroyWindow(hwnd);
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SDL_Quit();
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return 0;
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}
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@ -60,7 +60,7 @@
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/>
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<Tool
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Name="VCLinkerTool"
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AdditionalDependencies="d3dx9.lib d3d9.lib"
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AdditionalDependencies="opengl32.lib glu32.lib SDL.lib"
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LinkIncremental="2"
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GenerateManifest="false"
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GenerateDebugInformation="true"
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@ -134,7 +134,7 @@
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/>
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<Tool
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Name="VCLinkerTool"
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AdditionalDependencies="d3dx9.lib d3d9.lib"
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AdditionalDependencies="opengl32.lib glu32.lib SDL.lib"
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LinkIncremental="1"
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GenerateDebugInformation="true"
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SubSystem="1"
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@ -210,7 +210,7 @@
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/>
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<Tool
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Name="VCLinkerTool"
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AdditionalDependencies="d3dx9.lib d3d9.lib"
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AdditionalDependencies="opengl32.lib glu32.lib SDL.lib"
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LinkIncremental="2"
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GenerateManifest="false"
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GenerateDebugInformation="true"
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@ -285,7 +285,7 @@
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/>
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<Tool
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Name="VCLinkerTool"
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AdditionalDependencies="d3dx9.lib d3d9.lib"
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AdditionalDependencies="opengl32.lib glu32.lib SDL.lib"
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LinkIncremental="1"
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GenerateDebugInformation="true"
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SubSystem="1"
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