// All the video modes that a real Apple 2 supports are handled here
//
// by James Hammons
-// (c) 2005-2017 Underground Software
+// (c) 2005-2018 Underground Software
//
// JLH = James Hammons <jlhamm@acm.org>
//
// like white mono does [DONE]
// - Double HiRes [DONE]
// - 80 column text [DONE]
-// - Fix OSD text display so that it's visible no matter what background is there [DONE]
+// - Fix OSD text display so that it's visible no matter what background is
+// there [DONE]
//
// Display routines seem MUCH slower now... !!! INVESTIGATE !!! [not anymore]
bool alternateCharset = false;
bool col80Mode = false;
SDL_Renderer * sdlRenderer = NULL;
+SDL_Window * sdlWindow = NULL;
// Local variables
-static SDL_Window * sdlWindow = NULL;
static SDL_Texture * sdlTexture = NULL;
static uint32_t * scrBuffer;
static int scrPitch;
+static bool showFrameTicks = false;
// We set up the colors this way so that they'll be endian safe
// when we cast them to a uint32_t. Note that the format is RGBA.
0x207F, 0x387F, 0x267F, 0x3E7F, 0x21FF, 0x39FF, 0x27FF, 0x3FFF // $Fx
};
-//static uint8_t blurTable[0x800][8]; // Color TV blur table
static uint8_t blurTable[0x80][8]; // Color TV blur table
static uint8_t mirrorTable[0x100];
static uint32_t * palette = (uint32_t *)altColors;
static void Render40ColumnText(void);
static void Render80ColumnText(void);
static void RenderLoRes(uint16_t toLine = 24);
+static void RenderDLoRes(uint16_t toLine = 24);
static void RenderHiRes(uint16_t toLine = 192);
static void RenderDHiRes(uint16_t toLine = 192);
static void RenderVideoFrame(/*uint32_t *, int*/);
// Odd. Doing the bit patterns from 0-$7F doesn't work, but going
// from 0-$7FF stepping by 16 does. Hm.
// Well, it seems that going from 0-$7F doesn't have enough precision to do the job.
-#if 0
-// for(uint16_t bitPat=0; bitPat<0x800; bitPat++)
- for(uint16_t bitPat=0; bitPat<0x80; bitPat++)
- {
-/* uint16_t w3 = bitPat & 0x888;
- uint16_t w2 = bitPat & 0x444;
- uint16_t w1 = bitPat & 0x222;
- uint16_t w0 = bitPat & 0x111;*/
- uint16_t w3 = bitPat & 0x88;
- uint16_t w2 = bitPat & 0x44;
- uint16_t w1 = bitPat & 0x22;
- uint16_t w0 = bitPat & 0x11;
-
- uint16_t blurred3 = (w3 | (w3 >> 1) | (w3 >> 2) | (w3 >> 3)) & 0x00FF;
- uint16_t blurred2 = (w2 | (w2 >> 1) | (w2 >> 2) | (w2 >> 3)) & 0x00FF;
- uint16_t blurred1 = (w1 | (w1 >> 1) | (w1 >> 2) | (w1 >> 3)) & 0x00FF;
- uint16_t blurred0 = (w0 | (w0 >> 1) | (w0 >> 2) | (w0 >> 3)) & 0x00FF;
-
- for(int8_t i=7; i>=0; i--)
- {
- uint8_t color = (((blurred0 >> i) & 0x01) << 3)
- | (((blurred1 >> i) & 0x01) << 2)
- | (((blurred2 >> i) & 0x01) << 1)
- | ((blurred3 >> i) & 0x01);
- blurTable[bitPat][7 - i] = color;
- }
- }
-#else
for(uint16_t bitPat=0; bitPat<0x800; bitPat+=0x10)
{
uint16_t w0 = bitPat & 0x111, w1 = bitPat & 0x222, w2 = bitPat & 0x444, w3 = bitPat & 0x888;
blurTable[bitPat >> 4][7 - i] = color;
}
}
-#endif
for(int i=0; i<256; i++)
{
}
+void ToggleTickDisplay(void)
+{
+ showFrameTicks = !showFrameTicks;
+}
+
+
static uint32_t msgTicks = 0;
static char message[4096];
va_end(arg);
msgTicks = 120;
+//WriteLog("\n%s\n", message);
}
-static void DrawString2(uint32_t x, uint32_t y, uint32_t color);
+static void DrawString2(uint32_t x, uint32_t y, uint32_t color, char * msg);
static void DrawString(void)
{
//This approach works, and seems to be fast enough... Though it probably would
//be better to make the oversized font to match this one...
for(uint32_t x=7; x<=9; x++)
for(uint32_t y=7; y<=9; y++)
- DrawString2(x, y, 0x00000000);
+ DrawString2(x, y, 0x00000000, message);
+
+ DrawString2(8, 8, 0x0020FF20, message);
+}
+
+
+static void DrawString(uint32_t x, uint32_t y, uint32_t color, char * msg)
+{
+//This approach works, and seems to be fast enough... Though it probably would
+//be better to make the oversized font to match this one...
+ for(uint32_t xx=x-1; xx<=x+1; xx++)
+ for(uint32_t yy=y-1; yy<=y+1; yy++)
+ DrawString2(xx, yy, 0x00000000, msg);
- DrawString2(8, 8, 0x0020FF20);
+ DrawString2(x, y, color, msg);
}
-static void DrawString2(uint32_t x, uint32_t y, uint32_t color)
+static void DrawString2(uint32_t x, uint32_t y, uint32_t color, char * msg)
{
-//uint32_t x = 8, y = 8;
- uint32_t length = strlen(message), address = x + (y * VIRTUAL_SCREEN_WIDTH);
-// uint32_t color = 0x0020FF20;
-//This could be done ahead of time, instead of on each pixel...
-//(Now it is!)
+ uint32_t length = strlen(msg), address = x + (y * VIRTUAL_SCREEN_WIDTH);
uint8_t nBlue = (color >> 16) & 0xFF, nGreen = (color >> 8) & 0xFF, nRed = color & 0xFF;
for(uint32_t i=0; i<length; i++)
{
- uint8_t c = message[i];
+ uint8_t c = msg[i];
c = (c < 32 ? 0 : c - 32);
uint32_t fontAddr = (uint32_t)c * FONT_WIDTH * FONT_HEIGHT;
{
for(uint32_t xx=0; xx<FONT_WIDTH; xx++)
{
-/* uint8_t fontTrans = font1[fontAddr++];
-// uint32_t newTrans = (fontTrans * transparency / 255) << 24;
- uint32_t newTrans = fontTrans << 24;
- uint32_t pixel = newTrans | color;
-
- *(scrBuffer + address + xx + (yy * VIRTUAL_SCREEN_WIDTH)) = pixel;//*/
-
-// uint8_t trans = font1[fontAddr++];
uint8_t trans = font2[fontAddr++];
if (trans)
}
+static void DrawFrameTicks(void)
+{
+ uint32_t color = 0x00FF2020;
+ uint32_t address = 8 + (24 * VIRTUAL_SCREEN_WIDTH);
+
+ for(uint32_t i=0; i<17; i++)
+ {
+ for(uint32_t yy=0; yy<5; yy++)
+ {
+ for(uint32_t xx=0; xx<9; xx++)
+ {
+//THIS IS NOT ENDIAN SAFE
+//NB: Setting the alpha channel here does nothing.
+ *(scrBuffer + address + xx + (yy * VIRTUAL_SCREEN_WIDTH)) = 0x7F000000;
+ }
+ }
+
+ address += (5 * VIRTUAL_SCREEN_WIDTH);
+ }
+
+ address = 8 + (24 * VIRTUAL_SCREEN_WIDTH);
+
+ // frameTicks is the amount of time remaining; so to show the amount
+ // consumed, we subtract it from 17.
+ uint32_t bars = 17 - frameTicks;
+
+ if (bars & 0x80000000)
+ bars = 0;
+
+ for(uint32_t i=0; i<17; i++)
+ {
+ for(uint32_t yy=1; yy<4; yy++)
+ {
+ for(uint32_t xx=1; xx<8; xx++)
+ {
+//THIS IS NOT ENDIAN SAFE
+//NB: Setting the alpha channel here does nothing.
+ *(scrBuffer + address + xx + (yy * VIRTUAL_SCREEN_WIDTH)) = (i < bars ? color : 0x003F0000);
+ }
+ }
+
+ address += (5 * VIRTUAL_SCREEN_WIDTH);
+ }
+
+ static char msg[32];
+
+ if ((frameTimePtr % 15) == 0)
+ {
+// uint32_t prevClock = (frameTimePtr + 1) % 60;
+ uint64_t prevClock = (frameTimePtr + 1) % 60;
+// float fps = 59.0f / (((float)frameTime[frameTimePtr] - (float)frameTime[prevClock]) / 1000.0f);
+ double fps = 59.0 / ((double)(frameTime[frameTimePtr] - frameTime[prevClock]) / (double)SDL_GetPerformanceFrequency());
+ sprintf(msg, "%.1lf FPS", fps);
+ }
+
+ DrawString(20, 24, color, msg);
+}
+
+
static void Render40ColumnTextLine(uint8_t line)
{
uint32_t pixelOn = (screenType == ST_GREEN_MONO ? 0xFF61FF61 : 0xFFFFFFFF);
if (alternateCharset)
{
- if (textChar[((chr & 0x3F) * 56) + cx + (cy * 7)])
+ if (textChar2e[(chr * 56) + cx + (cy * 7)])
pixel = pixelOn;
-
- if (chr < 0x80)
- pixel = pixel ^ (screenType == ST_GREEN_MONO ? 0x0061FF61 : 0x00FFFFFF);
-
- if ((chr & 0xC0) == 0x40 && flash)
- pixel = 0xFF000000;
}
else
{
- if (textChar2e[(chr * 56) + cx + (cy * 7)])
- pixel = pixelOn;
+ if ((chr & 0xC0) == 0x40)
+ {
+ if (textChar2e[((chr & 0x3F) * 56) + cx + (cy * 7)])
+ pixel = pixelOn;
+
+ if (flash)
+ pixel = pixel ^ (screenType == ST_GREEN_MONO ? 0x0061FF61 : 0x00FFFFFF);
+ }
+ else
+ {
+ if (textChar2e[(chr * 56) + cx + (cy * 7)])
+ pixel = pixelOn;
+ }
}
scrBuffer[(x * 7 * 2) + (line * VIRTUAL_SCREEN_WIDTH * 8 * 2) + (cx * 2) + 0 + (cy * VIRTUAL_SCREEN_WIDTH * 2)] = pixel;
for(int x=0; x<80; x++)
{
-#if 0
-// This is wrong; it should grab from the alt bank if Page2 is set, not main RAM @ $0
- uint8_t chr = ram[lineAddrLoRes[line] + (displayPage2 ? 0x0400 : 0x0000) + x];
-
- if (x > 39)
- chr = ram2[lineAddrLoRes[line] + (displayPage2 ? 0x0400 : 0x0000) + x - 40];
-#else
uint8_t chr;
if (x & 0x01)
chr = ram[lineAddrLoRes[line] + (x >> 1)];
else
chr = ram2[lineAddrLoRes[line] + (x >> 1)];
-#endif
// Render character at (x, y)
if (alternateCharset)
{
- if (textChar[((chr & 0x3F) * 56) + cx + (cy * 7)])
+ if (textChar2e[(chr * 56) + cx + (cy * 7)])
pixel = pixelOn;
-
- if (chr < 0x80)
- pixel = pixel ^ (screenType == ST_GREEN_MONO ? 0x0061FF61 : 0x00FFFFFF);
-
- if ((chr & 0xC0) == 0x40 && flash)
- pixel = 0xFF000000;
}
else
{
- if (textChar2e[(chr * 56) + cx + (cy * 7)])
- pixel = pixelOn;
+ if ((chr & 0xC0) == 0x40)
+ {
+ if (textChar2e[((chr & 0x3F) * 56) + cx + (cy * 7)])
+ pixel = pixelOn;
+
+ if (flash)
+ pixel = pixel ^ (screenType == ST_GREEN_MONO ? 0x0061FF61 : 0x00FFFFFF);
+ }
+ else
+ {
+ if (textChar2e[(chr * 56) + cx + (cy * 7)])
+ pixel = pixelOn;
+ }
}
scrBuffer[(x * 7) + (line * VIRTUAL_SCREEN_WIDTH * 8 * 2) + cx + (cy * 2 * VIRTUAL_SCREEN_WIDTH)] = pixel;
}
+//
+// Render the Double Lo Res screen (HIRES off, DHIRES on)
+//
+static void RenderDLoRes(uint16_t toLine/*= 24*/)
+{
+// NOTE: The green mono rendering doesn't skip every other line... !!! FIX !!!
+// Also, we could set up three different Render functions depending on
+// which render type was set and call it with a function pointer. Would be
+// faster then the nested ifs we have now.
+/*
+Note that these colors correspond to the bit patterns generated by the numbers 0-F in order:
+Color #s correspond to the bit patterns in reverse... Interesting! [It's because
+the video generator reads the bit patters from bit 0--which makes them backwards
+from the normal POV.]
+
+00 00 00 -> 0 [0000] -> 0 (lores color #)
+3C 4D 00 -> 8 [0001] -> 8? BROWN
+00 5D 3C -> 4 [0010] -> 4? DARK GREEN
+3C AA 3C -> 12 [0011] -> 12? LIGHT GREEN (GREEN)
+41 30 7D -> 2 [0100] -> 2? DARK BLUE
+7D 7D 7D -> 10 [0101] -> 10? LIGHT GRAY (Grays are identical)
+41 8E BA -> 6 [0110] -> 6? MEDIUM BLUE (BLUE)
+7D DB BA -> 14 [0111] -> 14? AQUAMARINE (AQUA)
+7D 20 41 -> 1 [1000] -> 1? DEEP RED (MAGENTA)
+BA 6D 41 -> 9 [1001] -> 9? ORANGE
+7D 7D 7D -> 5 [1010] -> 5? DARK GRAY (Grays are identical)
+BA CB 7D -> 13 [1011] -> 13? YELLOW
+BE 51 BE -> 3 [1100] -> 3 PURPLE (VIOLET)
+FB 9E BE -> 11 [1101] -> 11? PINK
+BE AE FB -> 7 [1110] -> 7? LIGHT BLUE (CYAN)
+FB FB FB -> 15 [1111] -> 15 WHITE
+*/
+ uint8_t mirrorNybble[16] = { 0, 8, 4, 12, 2, 10, 6, 14, 1, 9, 5, 13, 3, 11, 7, 15 };
+ // Rotated one bit right (in the nybble)--right instead of left because
+ // these are backwards after all :-P
+ uint8_t mirrorNybble2[16] = { 0, 4, 2, 6, 1, 5, 3, 7, 8, 12, 10, 14, 9, 13, 11, 15 };
+ uint32_t pixelOn = (screenType == ST_WHITE_MONO ? 0xFFFFFFFF : 0xFF61FF61);
+
+ for(uint16_t y=0; y<toLine; y++)
+ {
+ // Do top half of double lores screen bytes...
+
+ uint32_t previous3Bits = 0;
+
+ for(uint16_t x=0; x<40; x+=2)
+ {
+ uint8_t scrByte3 = ram2[lineAddrLoRes[y] + x + 0] & 0x0F;
+ uint8_t scrByte4 = ram2[lineAddrLoRes[y] + x + 1] & 0x0F;
+ uint8_t scrByte1 = ram[lineAddrLoRes[y] + x + 0] & 0x0F;
+ uint8_t scrByte2 = ram[lineAddrLoRes[y] + x + 1] & 0x0F;
+ scrByte1 = mirrorNybble[scrByte1];
+ scrByte2 = mirrorNybble[scrByte2];
+ scrByte3 = mirrorNybble2[scrByte3];
+ scrByte4 = mirrorNybble2[scrByte4];
+ // This is just a guess, but it'll have to do for now...
+ uint32_t pixels = previous3Bits | (scrByte3 << 24)
+ | (scrByte3 << 20) | (scrByte1 << 16)
+ | ((scrByte1 & 0x0C) << 12) | ((scrByte4 & 0x03) << 12)
+ | (scrByte4 << 8) | (scrByte2 << 4) | scrByte2;
+
+ // We now have 28 pixels (expanded from 14) in word: mask is $0F FF FF FF
+ // 0ppp 1111 1111 1111 11|11 1111 1111 1111
+ // 31 27 23 19 15 11 7 3 0
+
+ if (screenType == ST_COLOR_TV)
+ {
+ for(uint8_t i=0; i<7; i++)
+ {
+ uint8_t bitPat = (pixels & 0x7F000000) >> 24;
+ pixels <<= 4;
+
+ for(uint8_t j=0; j<4; j++)
+ {
+ uint8_t color = blurTable[bitPat][j];
+
+ for(uint32_t cy=0; cy<8; cy++)
+ {
+ scrBuffer[((x * 14) + (i * 4) + j) + (((y * 16) + cy) * VIRTUAL_SCREEN_WIDTH)] = palette[color];
+// scrBuffer[((x * 14) + (i * 4) + j) + (((y * 16) + cy) * VIRTUAL_SCREEN_WIDTH)] = palette[color];
+ }
+ }
+ }
+
+ previous3Bits = pixels & 0x70000000;
+ }
+ else
+ {
+ for(int j=0; j<28; j++)
+ {
+ for(uint32_t cy=0; cy<8; cy++)
+ {
+ scrBuffer[((x * 14) + j) + (((y * 16) + cy) * VIRTUAL_SCREEN_WIDTH)] = (pixels & 0x08000000 ? pixelOn : 0xFF000000);
+ }
+
+ pixels <<= 1;
+ }
+ }
+ }
+
+ // Now do bottom half...
+
+ previous3Bits = 0;
+
+ for(uint16_t x=0; x<40; x+=2)
+ {
+ uint8_t scrByte3 = ram2[lineAddrLoRes[y] + x + 0] >> 4;
+ uint8_t scrByte4 = ram2[lineAddrLoRes[y] + x + 1] >> 4;
+ uint8_t scrByte1 = ram[lineAddrLoRes[y] + x + 0] >> 4;
+ uint8_t scrByte2 = ram[lineAddrLoRes[y] + x + 1] >> 4;
+ scrByte1 = mirrorNybble[scrByte1];
+ scrByte2 = mirrorNybble[scrByte2];
+ scrByte3 = mirrorNybble2[scrByte3];
+ scrByte4 = mirrorNybble2[scrByte4];
+ // This is just a guess, but it'll have to do for now...
+// uint32_t pixels = previous3Bits | (scrByte1 << 24) | (scrByte1 << 20) | (scrByte1 << 16)
+// | ((scrByte1 & 0x0C) << 12) | ((scrByte2 & 0x03) << 12)
+// | (scrByte2 << 8) | (scrByte2 << 4) | scrByte2;
+ uint32_t pixels = previous3Bits | (scrByte3 << 24)
+ | (scrByte3 << 20) | (scrByte1 << 16)
+ | ((scrByte1 & 0x0C) << 12) | ((scrByte4 & 0x03) << 12)
+ | (scrByte4 << 8) | (scrByte2 << 4) | scrByte2;
+
+ // We now have 28 pixels (expanded from 14) in word: mask is $0F FF FF FF
+ // 0ppp 1111 1111 1111 11|11 1111 1111 1111
+ // 31 27 23 19 15 11 7 3 0
+
+ if (screenType == ST_COLOR_TV)
+ {
+ for(uint8_t i=0; i<7; i++)
+ {
+ uint8_t bitPat = (pixels & 0x7F000000) >> 24;
+ pixels <<= 4;
+
+ for(uint8_t j=0; j<4; j++)
+ {
+ uint8_t color = blurTable[bitPat][j];
+
+ for(uint32_t cy=8; cy<16; cy++)
+ {
+ scrBuffer[((x * 14) + (i * 4) + j) + (((y * 16) + cy) * VIRTUAL_SCREEN_WIDTH)] = palette[color];
+ }
+ }
+ }
+
+ previous3Bits = pixels & 0x70000000;
+ }
+ else
+ {
+ for(int j=0; j<28; j++)
+ {
+ for(uint32_t cy=8; cy<16; cy++)
+ {
+ scrBuffer[((x * 14) + j) + (((y * 16) + cy) * VIRTUAL_SCREEN_WIDTH)] = (pixels & 0x08000000 ? pixelOn : 0xFF000000);
+ }
+
+ pixels <<= 1;
+ }
+ }
+ }
+ }
+}
+
+
static void RenderHiRes(uint16_t toLine/*= 192*/)
{
//printf("RenderHiRes to line %u\n", toLine);
{
if (mixedMode)
{
- if (hiRes)
+ if (dhires)
{
- RenderHiRes(160);
- Render40ColumnTextLine(20);
- Render40ColumnTextLine(21);
- Render40ColumnTextLine(22);
- Render40ColumnTextLine(23);
+ if (hiRes)
+ RenderDHiRes(160);
+ else
+ RenderDLoRes(20);
}
+ else if (hiRes)
+ RenderHiRes(160);
else
- {
RenderLoRes(20);
- Render40ColumnTextLine(20);
- Render40ColumnTextLine(21);
- Render40ColumnTextLine(22);
- Render40ColumnTextLine(23);
- }
+
+ Render40ColumnTextLine(20);
+ Render40ColumnTextLine(21);
+ Render40ColumnTextLine(22);
+ Render40ColumnTextLine(23);
}
else
{
if (dhires)
- RenderDHiRes();
+ {
+ if (hiRes)
+ RenderDHiRes();
+ else
+ RenderDLoRes();
+ }
else if (hiRes)
RenderHiRes();
else
DrawString();
msgTicks--;
}
+
+ if (showFrameTicks)
+ DrawFrameTicks();
}
return false;
}
-// int retVal = SDL_CreateWindowAndRenderer(VIRTUAL_SCREEN_WIDTH * 2, VIRTUAL_SCREEN_HEIGHT * 2, SDL_WINDOW_OPENGL, &sdlWindow, &sdlRenderer);
+#if 0
int retVal = SDL_CreateWindowAndRenderer(VIRTUAL_SCREEN_WIDTH * 2, VIRTUAL_SCREEN_HEIGHT * 2, 0, &sdlWindow, &sdlRenderer);
+// int retVal = SDL_CreateWindowAndRenderer(VIRTUAL_SCREEN_WIDTH * 1, VIRTUAL_SCREEN_HEIGHT * 1, 0, &sdlWindow, &sdlRenderer);
if (retVal != 0)
{
- WriteLog("Video: Could not window and/or renderer: %s\n", SDL_GetError());
+ WriteLog("Video: Could not create window and/or renderer: %s\n", SDL_GetError());
+ return false;
+ }
+#else
+ sdlWindow = SDL_CreateWindow("Apple2", settings.winX, settings.winY, VIRTUAL_SCREEN_WIDTH * 2, VIRTUAL_SCREEN_HEIGHT * 2, 0);
+
+ if (sdlWindow == NULL)
+ {
+ WriteLog("Video: Could not create window: %s\n", SDL_GetError());
+ return false;
+ }
+
+ sdlRenderer = SDL_CreateRenderer(sdlWindow, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
+
+ if (sdlRenderer == NULL)
+ {
+ WriteLog("Video: Could not create renderer: %s\n", SDL_GetError());
return false;
}
+#endif
- // Make the scaled rendering look smoother.
+ // Make sure what we put there is what we get:
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
-// SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "nearest");
SDL_RenderSetLogicalSize(sdlRenderer, VIRTUAL_SCREEN_WIDTH, VIRTUAL_SCREEN_HEIGHT);
// Set the application's icon & title...
SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STREAMING,
VIRTUAL_SCREEN_WIDTH, VIRTUAL_SCREEN_HEIGHT);
+ // Start in fullscreen, if user requested it via config file
+ int response = SDL_SetWindowFullscreen(sdlWindow, (settings.fullscreen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0));
+
+ if (response != 0)
+ WriteLog("Video::FullScreen: SDL error = %s\n", SDL_GetError());
+
SetupBlurTable();
WriteLog("Video: Successfully initialized.\n");
projects / apple2 / blobdiff