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cebix |
1.1 |
/* |
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* Display_SDL.h - C64 graphics display, emulator window handling, |
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* SDL specific stuff |
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* |
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cebix |
1.9 |
* Frodo Copyright (C) Christian Bauer |
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cebix |
1.1 |
* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#include "C64.h" |
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#include "SAM.h" |
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#include "Version.h" |
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#include <SDL.h> |
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cebix |
1.11 |
#ifdef ENABLE_OPENGL |
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#include <GL/glew.h> |
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#endif |
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// Display dimensions including drive LEDs etc. |
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static const int FRAME_WIDTH = DISPLAY_X; |
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static const int FRAME_HEIGHT = DISPLAY_Y + 16; |
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cebix |
1.1 |
|
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// Display surface |
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static SDL_Surface *screen = NULL; |
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// Keyboard |
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static bool num_locked = false; |
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// For LED error blinking |
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static C64Display *c64_disp; |
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static struct sigaction pulse_sa; |
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static itimerval pulse_tv; |
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cebix |
1.4 |
// SDL joysticks |
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static SDL_Joystick *joy[2] = {NULL, NULL}; |
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cebix |
1.1 |
// Colors for speedometer/drive LEDs |
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enum { |
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black = 0, |
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white = 1, |
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fill_gray = 16, |
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shine_gray = 17, |
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shadow_gray = 18, |
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red = 19, |
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green = 20, |
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PALETTE_SIZE = 21 |
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}; |
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cebix |
1.11 |
#ifdef ENABLE_OPENGL |
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// Display texture dimensions |
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static const int TEXTURE_SIZE = 512; // smallest power-of-two that fits DISPLAY_X/Y |
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// Texture object for VIC palette |
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static GLuint palette_tex; |
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// Texture object for VIC display |
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static GLuint vic_tex; |
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#endif |
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cebix |
1.1 |
/* |
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C64 keyboard matrix: |
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Bit 7 6 5 4 3 2 1 0 |
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0 CUD F5 F3 F1 F7 CLR RET DEL |
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1 SHL E S Z 4 A W 3 |
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2 X T F C 6 D R 5 |
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3 V U H B 8 G Y 7 |
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4 N O K M 0 J I 9 |
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5 , @ : . - L P + |
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6 / ^ = SHR HOM ; * £ |
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7 R/S Q C= SPC 2 CTL <- 1 |
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*/ |
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#define MATRIX(a,b) (((a) << 3) | (b)) |
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/* |
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* Open window |
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*/ |
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int init_graphics(void) |
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{ |
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// Init SDL |
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cebix |
1.10 |
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK | SDL_INIT_AUDIO) < 0) { |
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cebix |
1.1 |
fprintf(stderr, "Couldn't initialize SDL (%s)\n", SDL_GetError()); |
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return 0; |
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} |
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return 1; |
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} |
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cebix |
1.11 |
#ifdef ENABLE_OPENGL |
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/* |
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* Set direct projection (GL coordinates = window pixel coordinates) |
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*/ |
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static void set_projection() |
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{ |
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int width = SDL_GetVideoSurface()->w; |
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int height = SDL_GetVideoSurface()->h; |
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glViewport(0, 0, width, height); |
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glMatrixMode(GL_PROJECTION); |
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glLoadIdentity(); |
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float aspect = float(width) / float(height); |
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const float want_aspect = float(FRAME_WIDTH) / float(FRAME_HEIGHT); |
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int left, right, top, bottom; |
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if (aspect > want_aspect) { |
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// Window too wide, center horizontally |
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top = 0; bottom = FRAME_HEIGHT; |
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int diff = (int(FRAME_WIDTH * aspect / want_aspect) - FRAME_WIDTH) / 2; |
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left = -diff; |
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right = FRAME_WIDTH + diff; |
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} else { |
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// Window too high, center vertically |
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left = 0; right = FRAME_WIDTH; |
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int diff = (int(FRAME_HEIGHT * want_aspect / aspect) - FRAME_HEIGHT) / 2; |
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top = -diff; |
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bottom = FRAME_HEIGHT + diff; |
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} |
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glOrtho(left, right, bottom, top, -1, 1); |
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glClear(GL_COLOR_BUFFER_BIT); |
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} |
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/* |
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* User resized video display (only possible with OpenGL) |
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*/ |
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static void video_resized(int width, int height) |
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{ |
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uint32 flags = (ThePrefs.DisplayType == DISPTYPE_SCREEN ? SDL_FULLSCREEN : 0); |
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flags |= (SDL_ANYFORMAT | SDL_OPENGL | SDL_RESIZABLE); |
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SDL_SetVideoMode(width, height, 16, flags); |
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set_projection(); |
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} |
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#endif |
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cebix |
1.1 |
/* |
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* Display constructor |
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*/ |
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C64Display::C64Display(C64 *the_c64) : TheC64(the_c64) |
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{ |
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quit_requested = false; |
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speedometer_string[0] = 0; |
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cebix |
1.5 |
|
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// Open window |
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SDL_WM_SetCaption(VERSION_STRING, "Frodo"); |
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cebix |
1.11 |
uint32 flags = (ThePrefs.DisplayType == DISPTYPE_SCREEN ? SDL_FULLSCREEN : 0); |
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#ifdef ENABLE_OPENGL |
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flags |= (SDL_ANYFORMAT | SDL_OPENGL | SDL_RESIZABLE); |
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SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 5); |
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SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 5); |
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SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 5); |
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SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1); |
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SDL_Surface *real_screen = SDL_SetVideoMode(FRAME_WIDTH * 2, FRAME_HEIGHT * 2, 16, flags); |
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if (!real_screen) { |
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fprintf(stderr, "Couldn't initialize OpenGL video output (%s)\n", SDL_GetError()); |
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exit(1); |
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} |
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// VIC display and UI elements are rendered into an off-screen surface |
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screen = SDL_CreateRGBSurface(SDL_SWSURFACE, FRAME_WIDTH, FRAME_HEIGHT, 8, 0xff, 0xff, 0xff, 0xff); |
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// We need OpenGL 2.0 or higher |
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GLenum err = glewInit(); |
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if (err != GLEW_OK) { |
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fprintf(stderr, "Couldn't initialize GLEW (%s)\n", glewGetErrorString(err)); |
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exit(1); |
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} |
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if (!glewIsSupported("GL_VERSION_2_0")) { |
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fprintf(stderr, "Frodo requires OpenGL 2.0 or higher\n"); |
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exit(1); |
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} |
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// Set direct projection |
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set_projection(); |
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// Set GL state |
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glShadeModel(GL_FLAT); |
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glDisable(GL_DITHER); |
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glColor4f(1.0, 1.0, 1.0, 1.0); |
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// Create fragment shader for emulating a paletted texture |
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GLuint shader = glCreateShader(GL_FRAGMENT_SHADER_ARB); |
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const char * src = |
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"uniform sampler2D screen;" |
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"uniform sampler1D palette;" |
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cebix |
1.12 |
"const float texSize = 512.0;" // texture size |
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"const float texel = 1.0 / texSize;" |
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cebix |
1.11 |
"void main()" |
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"{" |
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#if 0 |
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// Nearest neighbour |
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" vec4 idx = texture2D(screen, gl_TexCoord[0].st);" |
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" gl_FragColor = texture1D(palette, idx.r);" |
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#else |
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// Linear interpolation |
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// (setting the GL_TEXTURE_MAG_FILTER to GL_LINEAR would interpolate |
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// the color indices which is not what we want; we need to manually |
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// interpolate the palette values instead) |
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" vec2 st = gl_TexCoord[0].st - vec2(texel * 0.5, texel * 0.5);" |
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" vec4 idx00 = texture2D(screen, st);" |
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" vec4 idx01 = texture2D(screen, st + vec2(0, texel));" |
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" vec4 idx10 = texture2D(screen, st + vec2(texel, 0));" |
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" vec4 idx11 = texture2D(screen, st + vec2(texel, texel));" |
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cebix |
1.12 |
" vec2 f = fract(st * texSize);" |
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" vec4 color0 = mix(texture1D(palette, idx00.r), texture1D(palette, idx01.r), f.y);" |
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" vec4 color1 = mix(texture1D(palette, idx10.r), texture1D(palette, idx11.r), f.y);" |
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" gl_FragColor = mix(color0, color1, f.x);" |
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cebix |
1.11 |
#endif |
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"}"; |
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glShaderSource(shader, 1, &src, NULL); |
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glCompileShader(shader); |
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GLint status; |
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glGetShaderiv(shader, GL_COMPILE_STATUS, &status); |
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if (status == GL_FALSE) { |
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GLint logLength = 0; |
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glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &logLength); |
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if (logLength > 0) { |
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GLchar *log = (GLchar *)malloc(logLength); |
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GLint actual; |
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glGetShaderInfoLog(shader, logLength, &actual, log); |
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fprintf(stderr, "%s\n", log); |
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exit(1); |
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} |
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} |
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GLuint program = glCreateProgram(); |
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glAttachShader(program, shader); |
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glLinkProgram(program); |
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glUseProgram(program); |
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// Create VIC display texture (8-bit color index in the red channel) |
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uint8 *tmp = (uint8 *)malloc(TEXTURE_SIZE * TEXTURE_SIZE); |
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memset(tmp, 0, TEXTURE_SIZE * TEXTURE_SIZE); |
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glGenTextures(1, &vic_tex); |
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glActiveTexture(GL_TEXTURE0); |
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glBindTexture(GL_TEXTURE_2D, vic_tex); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE); |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); // don't interpolate color index values |
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, TEXTURE_SIZE, TEXTURE_SIZE, 0, GL_RED, GL_UNSIGNED_BYTE, tmp); |
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glUniform1i(glGetUniformLocation(program, "screen"), 0); |
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free(tmp); |
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// Create VIC palette texture |
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tmp = (uint8 *)malloc(256 * 3); |
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memset(tmp, 0xff, 256 * 3); |
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for (int i=0; i<16; ++i) { |
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tmp[i*3+0] = palette_red[i & 0x0f]; |
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tmp[i*3+1] = palette_green[i & 0x0f]; |
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tmp[i*3+2] = palette_blue[i & 0x0f]; |
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} |
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tmp[fill_gray*3+0] = tmp[fill_gray*3+1] = tmp[fill_gray*3+2] = 0xd0; |
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tmp[shine_gray*3+0] = tmp[shine_gray*3+1] = tmp[shine_gray*3+2] = 0xf0; |
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tmp[shadow_gray*3+0] = tmp[shadow_gray*3+1] = tmp[shadow_gray*3+2] = 0x80; |
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tmp[red*3+0] = 0xf0; |
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tmp[red*3+1] = tmp[red*3+2] = 0; |
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tmp[green*3+1] = 0xf0; |
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tmp[green*3+0] = tmp[green*3+2] = 0; |
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glGenTextures(1, &palette_tex); |
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glActiveTexture(GL_TEXTURE1); |
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glBindTexture(GL_TEXTURE_1D, palette_tex); |
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glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MIN_FILTER, GL_NEAREST); // don't interpolate palette entries |
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glTexParameteri(GL_TEXTURE_1D, GL_TEXTURE_MAG_FILTER, GL_NEAREST); |
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glTexImage1D(GL_TEXTURE_1D, 0, GL_RGBA8, 256, 0, GL_RGB, GL_UNSIGNED_BYTE, tmp); |
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glUniform1i(glGetUniformLocation(program, "palette"), 1); |
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free(tmp); |
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#else |
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flags |= (SDL_HWSURFACE | SDL_DOUBLEBUF); |
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screen = SDL_SetVideoMode(FRAME_WIDTH, FRAME_HEIGHT, 8, flags); |
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#endif |
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cebix |
1.1 |
|
| 308 |
cebix |
1.9 |
// Hide mouse pointer in fullscreen mode |
| 309 |
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if (ThePrefs.DisplayType == DISPTYPE_SCREEN) |
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SDL_ShowCursor(0); |
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cebix |
1.1 |
// LEDs off |
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for (int i=0; i<4; i++) |
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led_state[i] = old_led_state[i] = LED_OFF; |
| 315 |
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// Start timer for LED error blinking |
| 317 |
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c64_disp = this; |
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pulse_sa.sa_handler = (void (*)(int))pulse_handler; |
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cebix |
1.3 |
pulse_sa.sa_flags = SA_RESTART; |
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cebix |
1.1 |
sigemptyset(&pulse_sa.sa_mask); |
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sigaction(SIGALRM, &pulse_sa, NULL); |
| 322 |
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pulse_tv.it_interval.tv_sec = 0; |
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pulse_tv.it_interval.tv_usec = 400000; |
| 324 |
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pulse_tv.it_value.tv_sec = 0; |
| 325 |
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pulse_tv.it_value.tv_usec = 400000; |
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setitimer(ITIMER_REAL, &pulse_tv, NULL); |
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} |
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/* |
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* Display destructor |
| 332 |
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*/ |
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C64Display::~C64Display() |
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{ |
| 336 |
cebix |
1.9 |
pulse_tv.it_interval.tv_sec = 0; |
| 337 |
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pulse_tv.it_interval.tv_usec = 0; |
| 338 |
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pulse_tv.it_value.tv_sec = 0; |
| 339 |
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pulse_tv.it_value.tv_usec = 0; |
| 340 |
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setitimer(ITIMER_REAL, &pulse_tv, NULL); |
| 341 |
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| 342 |
cebix |
1.1 |
SDL_Quit(); |
| 343 |
cebix |
1.9 |
|
| 344 |
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c64_disp = NULL; |
| 345 |
cebix |
1.1 |
} |
| 346 |
|
|
|
| 347 |
|
|
|
| 348 |
|
|
/* |
| 349 |
|
|
* Prefs may have changed |
| 350 |
|
|
*/ |
| 351 |
|
|
|
| 352 |
|
|
void C64Display::NewPrefs(Prefs *prefs) |
| 353 |
|
|
{ |
| 354 |
cebix |
1.11 |
// Unused, we handle fullscreen/window mode switches in PollKeyboard() |
| 355 |
cebix |
1.1 |
} |
| 356 |
|
|
|
| 357 |
|
|
|
| 358 |
|
|
/* |
| 359 |
|
|
* Redraw bitmap |
| 360 |
|
|
*/ |
| 361 |
|
|
|
| 362 |
|
|
void C64Display::Update(void) |
| 363 |
|
|
{ |
| 364 |
|
|
// Draw speedometer/LEDs |
| 365 |
|
|
SDL_Rect r = {0, DISPLAY_Y, DISPLAY_X, 15}; |
| 366 |
|
|
SDL_FillRect(screen, &r, fill_gray); |
| 367 |
|
|
r.w = DISPLAY_X; r.h = 1; |
| 368 |
|
|
SDL_FillRect(screen, &r, shine_gray); |
| 369 |
|
|
r.y = DISPLAY_Y + 14; |
| 370 |
|
|
SDL_FillRect(screen, &r, shadow_gray); |
| 371 |
|
|
r.w = 16; |
| 372 |
|
|
for (int i=2; i<6; i++) { |
| 373 |
|
|
r.x = DISPLAY_X * i/5 - 24; r.y = DISPLAY_Y + 4; |
| 374 |
|
|
SDL_FillRect(screen, &r, shadow_gray); |
| 375 |
|
|
r.y = DISPLAY_Y + 10; |
| 376 |
|
|
SDL_FillRect(screen, &r, shine_gray); |
| 377 |
|
|
} |
| 378 |
|
|
r.y = DISPLAY_Y; r.w = 1; r.h = 15; |
| 379 |
|
|
for (int i=0; i<5; i++) { |
| 380 |
|
|
r.x = DISPLAY_X * i / 5; |
| 381 |
|
|
SDL_FillRect(screen, &r, shine_gray); |
| 382 |
|
|
r.x = DISPLAY_X * (i+1) / 5 - 1; |
| 383 |
|
|
SDL_FillRect(screen, &r, shadow_gray); |
| 384 |
|
|
} |
| 385 |
|
|
r.y = DISPLAY_Y + 4; r.h = 7; |
| 386 |
|
|
for (int i=2; i<6; i++) { |
| 387 |
|
|
r.x = DISPLAY_X * i/5 - 24; |
| 388 |
|
|
SDL_FillRect(screen, &r, shadow_gray); |
| 389 |
|
|
r.x = DISPLAY_X * i/5 - 9; |
| 390 |
|
|
SDL_FillRect(screen, &r, shine_gray); |
| 391 |
|
|
} |
| 392 |
|
|
r.y = DISPLAY_Y + 5; r.w = 14; r.h = 5; |
| 393 |
|
|
for (int i=0; i<4; i++) { |
| 394 |
|
|
r.x = DISPLAY_X * (i+2) / 5 - 23; |
| 395 |
|
|
int c; |
| 396 |
|
|
switch (led_state[i]) { |
| 397 |
|
|
case LED_ON: |
| 398 |
|
|
c = green; |
| 399 |
|
|
break; |
| 400 |
|
|
case LED_ERROR_ON: |
| 401 |
|
|
c = red; |
| 402 |
|
|
break; |
| 403 |
|
|
default: |
| 404 |
|
|
c = black; |
| 405 |
|
|
break; |
| 406 |
|
|
} |
| 407 |
|
|
SDL_FillRect(screen, &r, c); |
| 408 |
|
|
} |
| 409 |
|
|
|
| 410 |
|
|
draw_string(screen, DISPLAY_X * 1/5 + 8, DISPLAY_Y + 4, "D\x12 8", black, fill_gray); |
| 411 |
|
|
draw_string(screen, DISPLAY_X * 2/5 + 8, DISPLAY_Y + 4, "D\x12 9", black, fill_gray); |
| 412 |
|
|
draw_string(screen, DISPLAY_X * 3/5 + 8, DISPLAY_Y + 4, "D\x12 10", black, fill_gray); |
| 413 |
|
|
draw_string(screen, DISPLAY_X * 4/5 + 8, DISPLAY_Y + 4, "D\x12 11", black, fill_gray); |
| 414 |
|
|
draw_string(screen, 24, DISPLAY_Y + 4, speedometer_string, black, fill_gray); |
| 415 |
|
|
|
| 416 |
cebix |
1.11 |
#ifdef ENABLE_OPENGL |
| 417 |
|
|
// Load screen to texture |
| 418 |
|
|
glActiveTexture(GL_TEXTURE0); |
| 419 |
|
|
glBindTexture(GL_TEXTURE_2D, vic_tex); |
| 420 |
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, FRAME_WIDTH, FRAME_HEIGHT, GL_RED, GL_UNSIGNED_BYTE, screen->pixels); |
| 421 |
|
|
|
| 422 |
|
|
// Draw textured rectangle |
| 423 |
|
|
glBegin(GL_QUADS); |
| 424 |
|
|
glTexCoord2f(0.0, 0.0); |
| 425 |
|
|
glVertex2f(0.0, 0.0); |
| 426 |
|
|
glTexCoord2f(float(FRAME_WIDTH) / TEXTURE_SIZE, 0.0); |
| 427 |
|
|
glVertex2f(float(FRAME_WIDTH), 0.0); |
| 428 |
|
|
glTexCoord2f(float(FRAME_WIDTH) / TEXTURE_SIZE, float(FRAME_HEIGHT) / TEXTURE_SIZE); |
| 429 |
|
|
glVertex2f(float(FRAME_WIDTH), float(FRAME_HEIGHT)); |
| 430 |
|
|
glTexCoord2f(0.0, float(FRAME_HEIGHT) / TEXTURE_SIZE); |
| 431 |
|
|
glVertex2f(0.0, float(FRAME_HEIGHT)); |
| 432 |
|
|
glEnd(); |
| 433 |
|
|
|
| 434 |
|
|
// Update display |
| 435 |
|
|
SDL_GL_SwapBuffers(); |
| 436 |
|
|
#else |
| 437 |
cebix |
1.1 |
// Update display |
| 438 |
|
|
SDL_Flip(screen); |
| 439 |
cebix |
1.11 |
#endif |
| 440 |
cebix |
1.1 |
} |
| 441 |
|
|
|
| 442 |
|
|
|
| 443 |
|
|
/* |
| 444 |
|
|
* Draw string into surface using the C64 ROM font |
| 445 |
|
|
*/ |
| 446 |
|
|
|
| 447 |
|
|
void C64Display::draw_string(SDL_Surface *s, int x, int y, const char *str, uint8 front_color, uint8 back_color) |
| 448 |
|
|
{ |
| 449 |
|
|
uint8 *pb = (uint8 *)s->pixels + s->pitch*y + x; |
| 450 |
|
|
char c; |
| 451 |
|
|
while ((c = *str++) != 0) { |
| 452 |
|
|
uint8 *q = TheC64->Char + c*8 + 0x800; |
| 453 |
|
|
uint8 *p = pb; |
| 454 |
|
|
for (int y=0; y<8; y++) { |
| 455 |
|
|
uint8 v = *q++; |
| 456 |
|
|
p[0] = (v & 0x80) ? front_color : back_color; |
| 457 |
|
|
p[1] = (v & 0x40) ? front_color : back_color; |
| 458 |
|
|
p[2] = (v & 0x20) ? front_color : back_color; |
| 459 |
|
|
p[3] = (v & 0x10) ? front_color : back_color; |
| 460 |
|
|
p[4] = (v & 0x08) ? front_color : back_color; |
| 461 |
|
|
p[5] = (v & 0x04) ? front_color : back_color; |
| 462 |
|
|
p[6] = (v & 0x02) ? front_color : back_color; |
| 463 |
|
|
p[7] = (v & 0x01) ? front_color : back_color; |
| 464 |
|
|
p += s->pitch; |
| 465 |
|
|
} |
| 466 |
|
|
pb += 8; |
| 467 |
|
|
} |
| 468 |
|
|
} |
| 469 |
|
|
|
| 470 |
|
|
|
| 471 |
|
|
/* |
| 472 |
|
|
* LED error blink |
| 473 |
|
|
*/ |
| 474 |
|
|
|
| 475 |
|
|
void C64Display::pulse_handler(...) |
| 476 |
|
|
{ |
| 477 |
|
|
for (int i=0; i<4; i++) |
| 478 |
|
|
switch (c64_disp->led_state[i]) { |
| 479 |
|
|
case LED_ERROR_ON: |
| 480 |
|
|
c64_disp->led_state[i] = LED_ERROR_OFF; |
| 481 |
|
|
break; |
| 482 |
|
|
case LED_ERROR_OFF: |
| 483 |
|
|
c64_disp->led_state[i] = LED_ERROR_ON; |
| 484 |
|
|
break; |
| 485 |
|
|
} |
| 486 |
|
|
} |
| 487 |
|
|
|
| 488 |
|
|
|
| 489 |
|
|
/* |
| 490 |
|
|
* Draw speedometer |
| 491 |
|
|
*/ |
| 492 |
|
|
|
| 493 |
|
|
void C64Display::Speedometer(int speed) |
| 494 |
|
|
{ |
| 495 |
|
|
static int delay = 0; |
| 496 |
|
|
|
| 497 |
|
|
if (delay >= 20) { |
| 498 |
|
|
delay = 0; |
| 499 |
|
|
sprintf(speedometer_string, "%d%%", speed); |
| 500 |
|
|
} else |
| 501 |
|
|
delay++; |
| 502 |
|
|
} |
| 503 |
|
|
|
| 504 |
|
|
|
| 505 |
|
|
/* |
| 506 |
|
|
* Return pointer to bitmap data |
| 507 |
|
|
*/ |
| 508 |
|
|
|
| 509 |
|
|
uint8 *C64Display::BitmapBase(void) |
| 510 |
|
|
{ |
| 511 |
|
|
return (uint8 *)screen->pixels; |
| 512 |
|
|
} |
| 513 |
|
|
|
| 514 |
|
|
|
| 515 |
|
|
/* |
| 516 |
|
|
* Return number of bytes per row |
| 517 |
|
|
*/ |
| 518 |
|
|
|
| 519 |
|
|
int C64Display::BitmapXMod(void) |
| 520 |
|
|
{ |
| 521 |
|
|
return screen->pitch; |
| 522 |
|
|
} |
| 523 |
|
|
|
| 524 |
|
|
|
| 525 |
|
|
/* |
| 526 |
|
|
* Poll the keyboard |
| 527 |
|
|
*/ |
| 528 |
|
|
|
| 529 |
|
|
static void translate_key(SDLKey key, bool key_up, uint8 *key_matrix, uint8 *rev_matrix, uint8 *joystick) |
| 530 |
|
|
{ |
| 531 |
|
|
int c64_key = -1; |
| 532 |
|
|
switch (key) { |
| 533 |
|
|
case SDLK_a: c64_key = MATRIX(1,2); break; |
| 534 |
|
|
case SDLK_b: c64_key = MATRIX(3,4); break; |
| 535 |
|
|
case SDLK_c: c64_key = MATRIX(2,4); break; |
| 536 |
|
|
case SDLK_d: c64_key = MATRIX(2,2); break; |
| 537 |
|
|
case SDLK_e: c64_key = MATRIX(1,6); break; |
| 538 |
|
|
case SDLK_f: c64_key = MATRIX(2,5); break; |
| 539 |
|
|
case SDLK_g: c64_key = MATRIX(3,2); break; |
| 540 |
|
|
case SDLK_h: c64_key = MATRIX(3,5); break; |
| 541 |
|
|
case SDLK_i: c64_key = MATRIX(4,1); break; |
| 542 |
|
|
case SDLK_j: c64_key = MATRIX(4,2); break; |
| 543 |
|
|
case SDLK_k: c64_key = MATRIX(4,5); break; |
| 544 |
|
|
case SDLK_l: c64_key = MATRIX(5,2); break; |
| 545 |
|
|
case SDLK_m: c64_key = MATRIX(4,4); break; |
| 546 |
|
|
case SDLK_n: c64_key = MATRIX(4,7); break; |
| 547 |
|
|
case SDLK_o: c64_key = MATRIX(4,6); break; |
| 548 |
|
|
case SDLK_p: c64_key = MATRIX(5,1); break; |
| 549 |
|
|
case SDLK_q: c64_key = MATRIX(7,6); break; |
| 550 |
|
|
case SDLK_r: c64_key = MATRIX(2,1); break; |
| 551 |
|
|
case SDLK_s: c64_key = MATRIX(1,5); break; |
| 552 |
|
|
case SDLK_t: c64_key = MATRIX(2,6); break; |
| 553 |
|
|
case SDLK_u: c64_key = MATRIX(3,6); break; |
| 554 |
|
|
case SDLK_v: c64_key = MATRIX(3,7); break; |
| 555 |
|
|
case SDLK_w: c64_key = MATRIX(1,1); break; |
| 556 |
|
|
case SDLK_x: c64_key = MATRIX(2,7); break; |
| 557 |
|
|
case SDLK_y: c64_key = MATRIX(3,1); break; |
| 558 |
|
|
case SDLK_z: c64_key = MATRIX(1,4); break; |
| 559 |
|
|
|
| 560 |
|
|
case SDLK_0: c64_key = MATRIX(4,3); break; |
| 561 |
|
|
case SDLK_1: c64_key = MATRIX(7,0); break; |
| 562 |
|
|
case SDLK_2: c64_key = MATRIX(7,3); break; |
| 563 |
|
|
case SDLK_3: c64_key = MATRIX(1,0); break; |
| 564 |
|
|
case SDLK_4: c64_key = MATRIX(1,3); break; |
| 565 |
|
|
case SDLK_5: c64_key = MATRIX(2,0); break; |
| 566 |
|
|
case SDLK_6: c64_key = MATRIX(2,3); break; |
| 567 |
|
|
case SDLK_7: c64_key = MATRIX(3,0); break; |
| 568 |
|
|
case SDLK_8: c64_key = MATRIX(3,3); break; |
| 569 |
|
|
case SDLK_9: c64_key = MATRIX(4,0); break; |
| 570 |
|
|
|
| 571 |
|
|
case SDLK_SPACE: c64_key = MATRIX(7,4); break; |
| 572 |
|
|
case SDLK_BACKQUOTE: c64_key = MATRIX(7,1); break; |
| 573 |
|
|
case SDLK_BACKSLASH: c64_key = MATRIX(6,6); break; |
| 574 |
|
|
case SDLK_COMMA: c64_key = MATRIX(5,7); break; |
| 575 |
|
|
case SDLK_PERIOD: c64_key = MATRIX(5,4); break; |
| 576 |
|
|
case SDLK_MINUS: c64_key = MATRIX(5,0); break; |
| 577 |
|
|
case SDLK_EQUALS: c64_key = MATRIX(5,3); break; |
| 578 |
|
|
case SDLK_LEFTBRACKET: c64_key = MATRIX(5,6); break; |
| 579 |
|
|
case SDLK_RIGHTBRACKET: c64_key = MATRIX(6,1); break; |
| 580 |
|
|
case SDLK_SEMICOLON: c64_key = MATRIX(5,5); break; |
| 581 |
|
|
case SDLK_QUOTE: c64_key = MATRIX(6,2); break; |
| 582 |
|
|
case SDLK_SLASH: c64_key = MATRIX(6,7); break; |
| 583 |
|
|
|
| 584 |
|
|
case SDLK_ESCAPE: c64_key = MATRIX(7,7); break; |
| 585 |
|
|
case SDLK_RETURN: c64_key = MATRIX(0,1); break; |
| 586 |
|
|
case SDLK_BACKSPACE: case SDLK_DELETE: c64_key = MATRIX(0,0); break; |
| 587 |
|
|
case SDLK_INSERT: c64_key = MATRIX(6,3); break; |
| 588 |
|
|
case SDLK_HOME: c64_key = MATRIX(6,3); break; |
| 589 |
|
|
case SDLK_END: c64_key = MATRIX(6,0); break; |
| 590 |
|
|
case SDLK_PAGEUP: c64_key = MATRIX(6,0); break; |
| 591 |
|
|
case SDLK_PAGEDOWN: c64_key = MATRIX(6,5); break; |
| 592 |
|
|
|
| 593 |
|
|
case SDLK_LCTRL: case SDLK_TAB: c64_key = MATRIX(7,2); break; |
| 594 |
|
|
case SDLK_RCTRL: c64_key = MATRIX(7,5); break; |
| 595 |
|
|
case SDLK_LSHIFT: c64_key = MATRIX(1,7); break; |
| 596 |
|
|
case SDLK_RSHIFT: c64_key = MATRIX(6,4); break; |
| 597 |
|
|
case SDLK_LALT: case SDLK_LMETA: c64_key = MATRIX(7,5); break; |
| 598 |
|
|
case SDLK_RALT: case SDLK_RMETA: c64_key = MATRIX(7,5); break; |
| 599 |
|
|
|
| 600 |
|
|
case SDLK_UP: c64_key = MATRIX(0,7)| 0x80; break; |
| 601 |
|
|
case SDLK_DOWN: c64_key = MATRIX(0,7); break; |
| 602 |
|
|
case SDLK_LEFT: c64_key = MATRIX(0,2) | 0x80; break; |
| 603 |
|
|
case SDLK_RIGHT: c64_key = MATRIX(0,2); break; |
| 604 |
|
|
|
| 605 |
|
|
case SDLK_F1: c64_key = MATRIX(0,4); break; |
| 606 |
|
|
case SDLK_F2: c64_key = MATRIX(0,4) | 0x80; break; |
| 607 |
|
|
case SDLK_F3: c64_key = MATRIX(0,5); break; |
| 608 |
|
|
case SDLK_F4: c64_key = MATRIX(0,5) | 0x80; break; |
| 609 |
|
|
case SDLK_F5: c64_key = MATRIX(0,6); break; |
| 610 |
|
|
case SDLK_F6: c64_key = MATRIX(0,6) | 0x80; break; |
| 611 |
|
|
case SDLK_F7: c64_key = MATRIX(0,3); break; |
| 612 |
|
|
case SDLK_F8: c64_key = MATRIX(0,3) | 0x80; break; |
| 613 |
|
|
|
| 614 |
|
|
case SDLK_KP0: case SDLK_KP5: c64_key = 0x10 | 0x40; break; |
| 615 |
|
|
case SDLK_KP1: c64_key = 0x06 | 0x40; break; |
| 616 |
|
|
case SDLK_KP2: c64_key = 0x02 | 0x40; break; |
| 617 |
|
|
case SDLK_KP3: c64_key = 0x0a | 0x40; break; |
| 618 |
|
|
case SDLK_KP4: c64_key = 0x04 | 0x40; break; |
| 619 |
|
|
case SDLK_KP6: c64_key = 0x08 | 0x40; break; |
| 620 |
|
|
case SDLK_KP7: c64_key = 0x05 | 0x40; break; |
| 621 |
|
|
case SDLK_KP8: c64_key = 0x01 | 0x40; break; |
| 622 |
|
|
case SDLK_KP9: c64_key = 0x09 | 0x40; break; |
| 623 |
|
|
|
| 624 |
|
|
case SDLK_KP_DIVIDE: c64_key = MATRIX(6,7); break; |
| 625 |
|
|
case SDLK_KP_ENTER: c64_key = MATRIX(0,1); break; |
| 626 |
|
|
default: break; |
| 627 |
|
|
} |
| 628 |
|
|
|
| 629 |
|
|
if (c64_key < 0) |
| 630 |
|
|
return; |
| 631 |
|
|
|
| 632 |
|
|
// Handle joystick emulation |
| 633 |
|
|
if (c64_key & 0x40) { |
| 634 |
|
|
c64_key &= 0x1f; |
| 635 |
|
|
if (key_up) |
| 636 |
|
|
*joystick |= c64_key; |
| 637 |
|
|
else |
| 638 |
|
|
*joystick &= ~c64_key; |
| 639 |
|
|
return; |
| 640 |
|
|
} |
| 641 |
|
|
|
| 642 |
|
|
// Handle other keys |
| 643 |
|
|
bool shifted = c64_key & 0x80; |
| 644 |
|
|
int c64_byte = (c64_key >> 3) & 7; |
| 645 |
|
|
int c64_bit = c64_key & 7; |
| 646 |
|
|
if (key_up) { |
| 647 |
|
|
if (shifted) { |
| 648 |
|
|
key_matrix[6] |= 0x10; |
| 649 |
|
|
rev_matrix[4] |= 0x40; |
| 650 |
|
|
} |
| 651 |
|
|
key_matrix[c64_byte] |= (1 << c64_bit); |
| 652 |
|
|
rev_matrix[c64_bit] |= (1 << c64_byte); |
| 653 |
|
|
} else { |
| 654 |
|
|
if (shifted) { |
| 655 |
|
|
key_matrix[6] &= 0xef; |
| 656 |
|
|
rev_matrix[4] &= 0xbf; |
| 657 |
|
|
} |
| 658 |
|
|
key_matrix[c64_byte] &= ~(1 << c64_bit); |
| 659 |
|
|
rev_matrix[c64_bit] &= ~(1 << c64_byte); |
| 660 |
|
|
} |
| 661 |
|
|
} |
| 662 |
|
|
|
| 663 |
|
|
void C64Display::PollKeyboard(uint8 *key_matrix, uint8 *rev_matrix, uint8 *joystick) |
| 664 |
|
|
{ |
| 665 |
|
|
SDL_Event event; |
| 666 |
|
|
while (SDL_PollEvent(&event)) { |
| 667 |
|
|
switch (event.type) { |
| 668 |
|
|
|
| 669 |
|
|
// Key pressed |
| 670 |
|
|
case SDL_KEYDOWN: |
| 671 |
|
|
switch (event.key.keysym.sym) { |
| 672 |
|
|
|
| 673 |
|
|
case SDLK_F9: // F9: Invoke SAM |
| 674 |
cebix |
1.9 |
if (ThePrefs.DisplayType == DISPTYPE_WINDOW) // don't invoke in fullscreen mode |
| 675 |
|
|
SAM(TheC64); |
| 676 |
cebix |
1.1 |
break; |
| 677 |
|
|
|
| 678 |
cebix |
1.9 |
case SDLK_F10: // F10: Prefs/Quit |
| 679 |
|
|
TheC64->Pause(); |
| 680 |
|
|
if (ThePrefs.DisplayType == DISPTYPE_SCREEN) { // exit fullscreen mode |
| 681 |
cebix |
1.11 |
SDL_WM_ToggleFullScreen(SDL_GetVideoSurface()); |
| 682 |
cebix |
1.9 |
SDL_ShowCursor(1); |
| 683 |
|
|
} |
| 684 |
|
|
|
| 685 |
|
|
if (!TheApp->RunPrefsEditor()) { |
| 686 |
|
|
quit_requested = true; |
| 687 |
cebix |
1.11 |
} else { |
| 688 |
|
|
if (ThePrefs.DisplayType == DISPTYPE_SCREEN) { // enter fullscreen mode |
| 689 |
|
|
SDL_ShowCursor(0); |
| 690 |
|
|
SDL_WM_ToggleFullScreen(SDL_GetVideoSurface()); |
| 691 |
|
|
} |
| 692 |
cebix |
1.9 |
} |
| 693 |
|
|
|
| 694 |
|
|
TheC64->Resume(); |
| 695 |
cebix |
1.1 |
break; |
| 696 |
|
|
|
| 697 |
|
|
case SDLK_F11: // F11: NMI (Restore) |
| 698 |
|
|
TheC64->NMI(); |
| 699 |
|
|
break; |
| 700 |
|
|
|
| 701 |
|
|
case SDLK_F12: // F12: Reset |
| 702 |
|
|
TheC64->Reset(); |
| 703 |
|
|
break; |
| 704 |
|
|
|
| 705 |
|
|
case SDLK_NUMLOCK: |
| 706 |
|
|
num_locked = true; |
| 707 |
|
|
break; |
| 708 |
|
|
|
| 709 |
|
|
case SDLK_KP_PLUS: // '+' on keypad: Increase SkipFrames |
| 710 |
|
|
ThePrefs.SkipFrames++; |
| 711 |
|
|
break; |
| 712 |
|
|
|
| 713 |
|
|
case SDLK_KP_MINUS: // '-' on keypad: Decrease SkipFrames |
| 714 |
|
|
if (ThePrefs.SkipFrames > 1) |
| 715 |
|
|
ThePrefs.SkipFrames--; |
| 716 |
|
|
break; |
| 717 |
|
|
|
| 718 |
|
|
case SDLK_KP_MULTIPLY: // '*' on keypad: Toggle speed limiter |
| 719 |
|
|
ThePrefs.LimitSpeed = !ThePrefs.LimitSpeed; |
| 720 |
|
|
break; |
| 721 |
|
|
|
| 722 |
|
|
default: |
| 723 |
|
|
translate_key(event.key.keysym.sym, false, key_matrix, rev_matrix, joystick); |
| 724 |
|
|
break; |
| 725 |
|
|
} |
| 726 |
|
|
break; |
| 727 |
|
|
|
| 728 |
|
|
// Key released |
| 729 |
|
|
case SDL_KEYUP: |
| 730 |
|
|
if (event.key.keysym.sym == SDLK_NUMLOCK) |
| 731 |
|
|
num_locked = false; |
| 732 |
|
|
else |
| 733 |
|
|
translate_key(event.key.keysym.sym, true, key_matrix, rev_matrix, joystick); |
| 734 |
|
|
break; |
| 735 |
|
|
|
| 736 |
cebix |
1.11 |
#ifdef ENABLE_OPENGL |
| 737 |
|
|
// Window resized |
| 738 |
|
|
case SDL_VIDEORESIZE: |
| 739 |
|
|
video_resized(event.resize.w, event.resize.h); |
| 740 |
|
|
break; |
| 741 |
|
|
#endif |
| 742 |
|
|
|
| 743 |
cebix |
1.1 |
// Quit Frodo |
| 744 |
|
|
case SDL_QUIT: |
| 745 |
|
|
quit_requested = true; |
| 746 |
|
|
break; |
| 747 |
|
|
} |
| 748 |
|
|
} |
| 749 |
|
|
} |
| 750 |
|
|
|
| 751 |
|
|
|
| 752 |
|
|
/* |
| 753 |
|
|
* Check if NumLock is down (for switching the joystick keyboard emulation) |
| 754 |
|
|
*/ |
| 755 |
|
|
|
| 756 |
|
|
bool C64Display::NumLock(void) |
| 757 |
|
|
{ |
| 758 |
|
|
return num_locked; |
| 759 |
cebix |
1.4 |
} |
| 760 |
|
|
|
| 761 |
|
|
|
| 762 |
|
|
/* |
| 763 |
|
|
* Open/close joystick drivers given old and new state of |
| 764 |
|
|
* joystick preferences |
| 765 |
|
|
*/ |
| 766 |
|
|
|
| 767 |
|
|
void C64::open_close_joystick(int port, int oldjoy, int newjoy) |
| 768 |
|
|
{ |
| 769 |
|
|
if (oldjoy != newjoy) { |
| 770 |
|
|
joy_minx[port] = joy_miny[port] = 32767; // Reset calibration |
| 771 |
|
|
joy_maxx[port] = joy_maxy[port] = -32768; |
| 772 |
|
|
if (newjoy) { |
| 773 |
|
|
joy[port] = SDL_JoystickOpen(newjoy - 1); |
| 774 |
|
|
if (joy[port] == NULL) |
| 775 |
|
|
fprintf(stderr, "Couldn't open joystick %d\n", port + 1); |
| 776 |
|
|
} else { |
| 777 |
|
|
if (joy[port]) { |
| 778 |
|
|
SDL_JoystickClose(joy[port]); |
| 779 |
|
|
joy[port] = NULL; |
| 780 |
|
|
} |
| 781 |
|
|
} |
| 782 |
|
|
} |
| 783 |
|
|
} |
| 784 |
|
|
|
| 785 |
|
|
void C64::open_close_joysticks(int oldjoy1, int oldjoy2, int newjoy1, int newjoy2) |
| 786 |
|
|
{ |
| 787 |
|
|
open_close_joystick(0, oldjoy1, newjoy1); |
| 788 |
|
|
open_close_joystick(1, oldjoy2, newjoy2); |
| 789 |
|
|
} |
| 790 |
|
|
|
| 791 |
|
|
|
| 792 |
|
|
/* |
| 793 |
|
|
* Poll joystick port, return CIA mask |
| 794 |
|
|
*/ |
| 795 |
|
|
|
| 796 |
|
|
uint8 C64::poll_joystick(int port) |
| 797 |
|
|
{ |
| 798 |
|
|
uint8 j = 0xff; |
| 799 |
|
|
|
| 800 |
|
|
if (port == 0 && (joy[0] || joy[1])) |
| 801 |
|
|
SDL_JoystickUpdate(); |
| 802 |
|
|
|
| 803 |
|
|
if (joy[port]) { |
| 804 |
|
|
int x = SDL_JoystickGetAxis(joy[port], 0), y = SDL_JoystickGetAxis(joy[port], 1); |
| 805 |
|
|
|
| 806 |
|
|
if (x > joy_maxx[port]) |
| 807 |
|
|
joy_maxx[port] = x; |
| 808 |
|
|
if (x < joy_minx[port]) |
| 809 |
|
|
joy_minx[port] = x; |
| 810 |
|
|
if (y > joy_maxy[port]) |
| 811 |
|
|
joy_maxy[port] = y; |
| 812 |
|
|
if (y < joy_miny[port]) |
| 813 |
|
|
joy_miny[port] = y; |
| 814 |
|
|
|
| 815 |
|
|
if (joy_maxx[port] - joy_minx[port] < 100 || joy_maxy[port] - joy_miny[port] < 100) |
| 816 |
|
|
return 0xff; |
| 817 |
|
|
|
| 818 |
|
|
if (x < (joy_minx[port] + (joy_maxx[port]-joy_minx[port])/3)) |
| 819 |
|
|
j &= 0xfb; // Left |
| 820 |
|
|
else if (x > (joy_minx[port] + 2*(joy_maxx[port]-joy_minx[port])/3)) |
| 821 |
|
|
j &= 0xf7; // Right |
| 822 |
|
|
|
| 823 |
|
|
if (y < (joy_miny[port] + (joy_maxy[port]-joy_miny[port])/3)) |
| 824 |
|
|
j &= 0xfe; // Up |
| 825 |
|
|
else if (y > (joy_miny[port] + 2*(joy_maxy[port]-joy_miny[port])/3)) |
| 826 |
|
|
j &= 0xfd; // Down |
| 827 |
|
|
|
| 828 |
|
|
if (SDL_JoystickGetButton(joy[port], 0)) |
| 829 |
|
|
j &= 0xef; // Button |
| 830 |
|
|
} |
| 831 |
|
|
|
| 832 |
|
|
return j; |
| 833 |
cebix |
1.1 |
} |
| 834 |
|
|
|
| 835 |
|
|
|
| 836 |
|
|
/* |
| 837 |
|
|
* Allocate C64 colors |
| 838 |
|
|
*/ |
| 839 |
|
|
|
| 840 |
|
|
void C64Display::InitColors(uint8 *colors) |
| 841 |
|
|
{ |
| 842 |
|
|
SDL_Color palette[PALETTE_SIZE]; |
| 843 |
|
|
for (int i=0; i<16; i++) { |
| 844 |
|
|
palette[i].r = palette_red[i]; |
| 845 |
|
|
palette[i].g = palette_green[i]; |
| 846 |
|
|
palette[i].b = palette_blue[i]; |
| 847 |
|
|
} |
| 848 |
|
|
palette[fill_gray].r = palette[fill_gray].g = palette[fill_gray].b = 0xd0; |
| 849 |
|
|
palette[shine_gray].r = palette[shine_gray].g = palette[shine_gray].b = 0xf0; |
| 850 |
|
|
palette[shadow_gray].r = palette[shadow_gray].g = palette[shadow_gray].b = 0x80; |
| 851 |
|
|
palette[red].r = 0xf0; |
| 852 |
|
|
palette[red].g = palette[red].b = 0; |
| 853 |
|
|
palette[green].g = 0xf0; |
| 854 |
|
|
palette[green].r = palette[green].b = 0; |
| 855 |
|
|
SDL_SetColors(screen, palette, 0, PALETTE_SIZE); |
| 856 |
|
|
|
| 857 |
|
|
for (int i=0; i<256; i++) |
| 858 |
|
|
colors[i] = i & 0x0f; |
| 859 |
|
|
} |
| 860 |
|
|
|
| 861 |
|
|
|
| 862 |
|
|
/* |
| 863 |
|
|
* Show a requester (error message) |
| 864 |
|
|
*/ |
| 865 |
|
|
|
| 866 |
cebix |
1.8 |
long int ShowRequester(const char *a, const char *b, const char *) |
| 867 |
cebix |
1.1 |
{ |
| 868 |
|
|
printf("%s: %s\n", a, b); |
| 869 |
|
|
return 1; |
| 870 |
|
|
} |
