ref: eb897d844ffd9b8fabc50cdd619a07e7a89874d4
dir: /src/ft2_video.c/
// for finding memory leaks in debug mode with Visual Studio
#if defined _DEBUG && defined _MSC_VER
#include <crtdbg.h>
#endif
#include <stdio.h>
#include <stdint.h>
#include <stdbool.h>
#include <math.h>
#ifdef _WIN32
#define WIN32_MEAN_AND_LEAN
#include <windows.h>
#include <SDL2/SDL_syswm.h>
#else
#include <unistd.h> // usleep()
#endif
#include "ft2_header.h"
#include "ft2_config.h"
#include "ft2_gui.h"
#include "ft2_video.h"
#include "ft2_events.h"
#include "ft2_mouse.h"
#include "scopes/ft2_scopes.h"
#include "ft2_pattern_ed.h"
#include "ft2_pattern_draw.h"
#include "ft2_sample_ed.h"
#include "ft2_nibbles.h"
#include "ft2_inst_ed.h"
#include "ft2_diskop.h"
#include "ft2_about.h"
#include "ft2_trim.h"
#include "ft2_sampling.h"
#include "ft2_module_loader.h"
#include "ft2_midi.h"
#include "ft2_bmp.h"
#include "ft2_structs.h"
static const uint8_t textCursorData[12] =
{
PAL_FORGRND, PAL_FORGRND, PAL_FORGRND,
PAL_FORGRND, PAL_FORGRND, PAL_FORGRND,
PAL_FORGRND, PAL_FORGRND, PAL_FORGRND,
PAL_FORGRND, PAL_FORGRND, PAL_FORGRND
};
video_t video; // globalized
static bool songIsModified;
static char wndTitle[256];
static sprite_t sprites[SPRITE_NUM];
// for FPS counter
#define FPS_LINES 15
#define FPS_SCAN_FRAMES 60
#define FPS_RENDER_W 285
#define FPS_RENDER_H (((FONT1_CHAR_H + 1) * FPS_LINES) + 1)
#define FPS_RENDER_X 2
#define FPS_RENDER_Y 2
static char fpsTextBuf[1024];
static uint64_t frameStartTime;
static double dRunningFrameDuration, dAvgFPS;
// ------------------
static void drawReplayerData(void);
void resetFPSCounter(void)
{
editor.framesPassed = 0;
fpsTextBuf[0] = '\0';
dRunningFrameDuration = 1000.0 / VBLANK_HZ;
}
void beginFPSCounter(void)
{
if (video.showFPSCounter)
frameStartTime = SDL_GetPerformanceCounter();
}
static void drawFPSCounter(void)
{
SDL_version SDLVer;
SDL_GetVersion(&SDLVer);
if (editor.framesPassed >= FPS_SCAN_FRAMES && (editor.framesPassed % FPS_SCAN_FRAMES) == 0)
{
dAvgFPS = 1000.0 / (dRunningFrameDuration / FPS_SCAN_FRAMES);
if (dAvgFPS < 0.0 || dAvgFPS > 99999999.9999)
dAvgFPS = 99999999.9999; // prevent number from overflowing text box
dRunningFrameDuration = 0.0;
}
clearRect(FPS_RENDER_X+2, FPS_RENDER_Y+2, FPS_RENDER_W, FPS_RENDER_H);
vLineDouble(FPS_RENDER_X, FPS_RENDER_Y+1, FPS_RENDER_H+2, PAL_FORGRND);
vLineDouble(FPS_RENDER_X+FPS_RENDER_W, FPS_RENDER_Y+1, FPS_RENDER_H+2, PAL_FORGRND);
hLineDouble(FPS_RENDER_X+1, FPS_RENDER_Y, FPS_RENDER_W, PAL_FORGRND);
hLineDouble(FPS_RENDER_X+1, FPS_RENDER_Y+FPS_RENDER_H+2, FPS_RENDER_W, PAL_FORGRND);
// if enough frame data isn't collected yet, show a message
if (editor.framesPassed < FPS_SCAN_FRAMES)
{
const char *text = "Gathering frame information...";
const uint16_t textW = textWidth(text);
textOut(FPS_RENDER_X+((FPS_RENDER_W/2)-(textW/2)), FPS_RENDER_Y+((FPS_RENDER_H/2)-(FONT1_CHAR_H/2)), PAL_FORGRND, text);
return;
}
double dRefreshRate = video.dMonitorRefreshRate;
if (dRefreshRate < 0.0 || dRefreshRate > 9999.9)
dRefreshRate = 9999.9; // prevent number from overflowing text box
double dAudLatency = audio.dAudioLatencyMs;
if (dAudLatency < 0.0 || dAudLatency > 999999999.9999)
dAudLatency = 999999999.9999; // prevent number from overflowing text box
sprintf(fpsTextBuf,
"SDL version: %u.%u.%u\n" \
"Frames per second: %.3f\n" \
"Monitor refresh rate: %.1fHz (+/-)\n" \
"59..61Hz GPU VSync used: %s\n" \
"HPC frequency (timer): %.4fMHz\n" \
"Audio frequency: %.1fkHz (expected %.1fkHz)\n" \
"Audio buffer samples: %d (expected %d)\n" \
"Audio latency: %.1fms (expected %.1fms)\n" \
"Render size: %dx%d (offset %d,%d)\n" \
"Disp. size: %dx%d (window: %dx%d)\n" \
"Render scaling: x=%.2f, y=%.2f\n" \
"Mouse to render space muls: x=%.2f, y=%.2f\n" \
"Relative mouse coords: %d,%d\n" \
"Absolute mouse coords: %d,%d\n" \
"Press CTRL+SHIFT+F to close this box.\n",
SDLVer.major, SDLVer.minor, SDLVer.patch,
dAvgFPS,
dRefreshRate,
video.vsync60HzPresent ? "yes" : "no",
hpcFreq.freq64 / (1000.0 * 1000.0),
audio.haveFreq / 1000.0, audio.wantFreq / 1000.0,
audio.haveSamples, audio.wantSamples,
dAudLatency, ((audio.wantSamples * 1000.0) / audio.wantFreq),
video.renderW, video.renderH, video.renderX, video.renderY,
video.displayW, video.displayH, video.windowW, video.windowH,
video.renderW / (float)SCREEN_W, video.renderH / (float)SCREEN_H,
video.fMouseXMul, video.fMouseYMul,
mouse.x, mouse.y,
mouse.absX, mouse.absY);
// draw text
uint16_t xPos = FPS_RENDER_X+3;
uint16_t yPos = FPS_RENDER_Y+3;
char *textPtr = fpsTextBuf;
while (*textPtr != '\0')
{
const char ch = *textPtr++;
if (ch == '\n')
{
yPos += FONT1_CHAR_H+1;
xPos = FPS_RENDER_X+3;
continue;
}
charOut(xPos, yPos, PAL_FORGRND, ch);
xPos += charWidth(ch);
}
// draw framerate tester symbol
const uint16_t symbolEnd = 115;
// ping-pong movement
uint16_t x = editor.framesPassed % (symbolEnd * 2);
if (x >= symbolEnd)
x = (symbolEnd * 2) - x;
charOut(164 + x, 16, PAL_FORGRND, '*');
}
void endFPSCounter(void)
{
if (video.showFPSCounter && frameStartTime > 0)
{
uint64_t frameTimeDiff64 = SDL_GetPerformanceCounter() - frameStartTime;
if (frameTimeDiff64 > INT32_MAX)
frameTimeDiff64 = INT32_MAX;
dRunningFrameDuration += (int32_t)frameTimeDiff64 * hpcFreq.dFreqMulMs;
}
}
void flipFrame(void)
{
const uint32_t windowFlags = SDL_GetWindowFlags(video.window);
bool minimized = (windowFlags & SDL_WINDOW_MINIMIZED) ? true : false;
renderSprites();
if (video.showFPSCounter)
drawFPSCounter();
SDL_UpdateTexture(video.texture, NULL, video.frameBuffer, SCREEN_W * sizeof (int32_t));
// SDL 2.0.14 bug on Windows (?): This function consumes ever-increasing memory if the program is minimized
if (!minimized)
SDL_RenderClear(video.renderer);
SDL_RenderCopy(video.renderer, video.texture, NULL, NULL);
SDL_RenderPresent(video.renderer);
eraseSprites();
if (!video.vsync60HzPresent)
{
// we have no VSync, do crude thread sleeping to sync to ~60Hz
hpc_Wait(&video.vblankHpc);
}
else
{
/* We have VSync, but it can unexpectedly get inactive in certain scenarios.
** We have to force thread sleeping (to ~60Hz) if so.
*/
#ifdef __APPLE__
// macOS: VSync gets disabled if the window is 100% covered by another window. Let's add a (crude) fix:
if (minimized || !(windowFlags & SDL_WINDOW_INPUT_FOCUS))
hpc_Wait(&video.vblankHpc);
#elif __unix__
/* *NIX: VSync can get disabled in fullscreen mode in some distros/systems. Let's add a fix.
**
** TODO/XXX: This is probably a BAD hack and can cause a poor fullscreen experience if VSync did
** in fact work in fullscreen mode...
*/
if (minimized || video.fullscreen)
hpc_Wait(&video.vblankHpc);
#else
if (minimized)
hpc_Wait(&video.vblankHpc);
#endif
}
editor.framesPassed++;
/* Reset audio/video sync timestamp every half an hour to prevent
** possible sync drifting after hours of playing a song without
** a single song stop (resets timestamp) in-between.
*/
if (editor.framesPassed >= VBLANK_HZ*60*30)
audio.resetSyncTickTimeFlag = true;
}
void showErrorMsgBox(const char *fmt, ...)
{
char strBuf[256];
va_list args;
// format the text string
va_start(args, fmt);
vsnprintf(strBuf, sizeof (strBuf), fmt, args);
va_end(args);
// window can be NULL here, no problem...
SDL_ShowSimpleMessageBox(SDL_MESSAGEBOX_ERROR, "Error", strBuf, video.window);
}
static void setRenderCoordsFromLogicalSize(void)
{
#ifdef _WIN32 // comments in enterFullscreen() explain why you can do this on Windows
video.renderX = 0;
video.renderY = 0;
video.renderW = video.windowW;
video.renderH = video.windowH;
#else
/* We use SDL_RenderGetLogicalSize() with a logical size (FT2's SCREEN_W and SCREEN_H).
** Find out the actual render X/Y start and width/height.
** I can't find a better way of doing this, let me know if you do!
**
** Code based on UpdateLogicalSize() in SDL_render.c (SDL2).
*/
int32_t logical_w, logical_h, w, h;
SDL_RenderGetLogicalSize(video.renderer, &logical_w, &logical_h);
SDL_GetWindowSize(video.window, &w, &h);
float want_aspect = (float)logical_w / logical_h;
float real_aspect = (float)w / h;
if (SDL_fabs(want_aspect - real_aspect) < 0.0001)
{
// the aspect ratios are the same, just scale appropriately
video.renderX = 0;
video.renderY = 0;
video.renderW = w;
video.renderH = h;
}
else if (want_aspect > real_aspect)
{
// we want a wider aspect ratio than is available - letterbox it
float scale = (float)w / logical_w;
video.renderX = 0;
video.renderW = w;
video.renderH = (int32_t)SDL_floor(logical_h * scale);
video.renderY = (h - video.renderH) / 2;
}
else
{
// We want a narrower aspect ratio than is available - use side-bars */
float scale = (float)h / logical_h;
video.renderY = 0;
video.renderH = h;
video.renderW = (int32_t)SDL_floor(logical_w * scale);
video.renderX = (w - video.renderW) / 2;
}
#endif
}
static void updateRenderSizeVars(void)
{
float fXScale, fYScale;
SDL_DisplayMode dm;
int32_t di = SDL_GetWindowDisplayIndex(video.window);
if (di < 0)
di = 0; // return display index 0 (default) on error
SDL_GetDesktopDisplayMode(di, &dm);
video.displayW = dm.w;
video.displayH = dm.h;
SDL_GetWindowSize(video.window, &video.windowW, &video.windowH);
video.renderX = 0;
video.renderY = 0;
if (video.fullscreen)
{
if (config.specialFlags2 & STRETCH_IMAGE)
{
setRenderCoordsFromLogicalSize();
}
else
{
SDL_RenderGetScale(video.renderer, &fXScale, &fYScale);
video.renderW = (int32_t)floor(SCREEN_W * fXScale);
video.renderH = (int32_t)floor(SCREEN_H * fYScale);
// high-DPI hackery:
// On high-DPI systems, the display w/h are given in logical pixels,
// but the renderer size is given in physical pixels. Since our internal
// render{X,Y,W,H} variables need to be in logical coordinates, as that's
// what mouse input uses, scale them by the screen's DPI scale factor,
// which is the physical (renderer) size / the logical (window) size.
// On non high-DPI systems, this is effectively a no-op.
int32_t actualScreenW, actualScreenH;
SDL_GetRendererOutputSize(video.renderer, &actualScreenW, &actualScreenH);
const double dXUpscale = (const double)actualScreenW / video.windowW;
const double dYUpscale = (const double)actualScreenH / video.windowH;
// downscale back to correct sizes
if (dXUpscale != 0.0) video.renderW = (int32_t)floor(video.renderW / dXUpscale);
if (dYUpscale != 0.0) video.renderH = (int32_t)floor(video.renderH / dYUpscale);
video.renderX = (video.windowW - video.renderW) / 2;
video.renderY = (video.windowH - video.renderH) / 2;
}
}
else
{
SDL_GetWindowSize(video.window, &video.renderW, &video.renderH);
}
// for mouse cursor creation
video.xScale = (uint32_t)floor(video.renderW / (double)SCREEN_W);
video.yScale = (uint32_t)floor(video.renderH / (double)SCREEN_H);
createMouseCursors();
}
void enterFullscreen(void)
{
SDL_SetWindowFullscreen(video.window, SDL_WINDOW_FULLSCREEN_DESKTOP);
SDL_Delay(15); // fixes possible issues
if (config.specialFlags2 & STRETCH_IMAGE)
{
SDL_DisplayMode dm;
int32_t di = SDL_GetWindowDisplayIndex(video.window);
if (di < 0)
di = 0; // return display index 0 (default) on error
SDL_GetDesktopDisplayMode(di, &dm);
#if SDL_MINOR_VERSION >= 24 || (SDL_MINOR_VERSION == 0 && SDL_PATCHLEVEL >= 5)
SDL_RenderSetIntegerScale(video.renderer, SDL_FALSE);
#endif
/* Only on Windows can you use dm.w and dm.h to get an actual
** fullscreen-scretch with SDL_RenderSetLogicalSize(). Silly!
*/
#ifdef _WIN32
SDL_RenderSetLogicalSize(video.renderer, dm.w, dm.h);
#else
SDL_RenderSetLogicalSize(video.renderer, SCREEN_W, SCREEN_H);
#endif
SDL_SetWindowSize(video.window, dm.w, dm.h);
}
else
{
#if SDL_MINOR_VERSION >= 24 || (SDL_MINOR_VERSION == 0 && SDL_PATCHLEVEL >= 5)
SDL_RenderSetIntegerScale(video.renderer, SDL_TRUE);
#endif
SDL_RenderSetLogicalSize(video.renderer, SCREEN_W, SCREEN_H);
SDL_SetWindowSize(video.window, SCREEN_W, SCREEN_H);
}
#ifndef __unix__ // Linux kludge...
SDL_SetWindowGrab(video.window, SDL_TRUE);
#endif
updateRenderSizeVars();
updateMouseScaling();
setMousePosToCenter();
}
void leaveFullscreen(void)
{
SDL_SetWindowFullscreen(video.window, 0);
SDL_Delay(15); // fixes possible issues
#if SDL_MINOR_VERSION >= 24 || (SDL_MINOR_VERSION == 0 && SDL_PATCHLEVEL >= 5)
SDL_RenderSetIntegerScale(video.renderer, SDL_TRUE);
#endif
SDL_RenderSetLogicalSize(video.renderer, SCREEN_W, SCREEN_H);
setWindowSizeFromConfig(false); // false = do not change actual window size, only update variables
SDL_SetWindowSize(video.window, SCREEN_W * video.upscaleFactor, SCREEN_H * video.upscaleFactor);
#ifndef __unix__ // revert Linux kludge...
SDL_SetWindowGrab(video.window, SDL_FALSE);
#endif
updateRenderSizeVars();
updateMouseScaling();
setMousePosToCenter();
#ifdef __unix__ // can be required on Linux... (or else the window keeps moving down every time you leave fullscreen)
SDL_SetWindowPosition(video.window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
#endif
}
void toggleFullscreen(void)
{
video.fullscreen ^= 1;
if (video.fullscreen)
enterFullscreen();
else
leaveFullscreen();
}
bool setupSprites(void)
{
sprite_t *s;
memset(sprites, 0, sizeof (sprites));
s = &sprites[SPRITE_MOUSE_POINTER];
s->data = bmp.mouseCursors;
s->w = MOUSE_CURSOR_W;
s->h = MOUSE_CURSOR_H;
s = &sprites[SPRITE_LEFT_LOOP_PIN];
s->data = &bmp.loopPins[0*(154*16)];
s->w = 16;
s->h = SAMPLE_AREA_HEIGHT;
s = &sprites[SPRITE_RIGHT_LOOP_PIN];
s->data = &bmp.loopPins[2*(154*16)];
s->w = 16;
s->h = SAMPLE_AREA_HEIGHT;
s = &sprites[SPRITE_TEXT_CURSOR];
s->data = textCursorData;
s->w = 1;
s->h = 12;
hideSprite(SPRITE_MOUSE_POINTER);
hideSprite(SPRITE_LEFT_LOOP_PIN);
hideSprite(SPRITE_RIGHT_LOOP_PIN);
hideSprite(SPRITE_TEXT_CURSOR);
// setup refresh buffer (used to clear sprites after each frame)
s = sprites;
for (uint32_t i = 0; i < SPRITE_NUM; i++, s++)
{
s->refreshBuffer = (uint32_t *)malloc(s->w * s->h * sizeof (int32_t));
if (s->refreshBuffer == NULL)
return false;
}
return true;
}
void changeSpriteData(int32_t sprite, const uint8_t *data)
{
sprites[sprite].data = data;
memset(sprites[sprite].refreshBuffer, 0, sprites[sprite].w * sprites[sprite].h * sizeof (int32_t));
}
void freeSprites(void)
{
sprite_t *s = sprites;
for (int32_t i = 0; i < SPRITE_NUM; i++, s++)
{
if (s->refreshBuffer != NULL)
{
free(s->refreshBuffer);
s->refreshBuffer = NULL;
}
}
}
void setLeftLoopPinState(bool clicked)
{
changeSpriteData(SPRITE_LEFT_LOOP_PIN, clicked ? &bmp.loopPins[1*(154*16)] : &bmp.loopPins[0*(154*16)]);
}
void setRightLoopPinState(bool clicked)
{
changeSpriteData(SPRITE_RIGHT_LOOP_PIN, clicked ? &bmp.loopPins[3*(154*16)] : &bmp.loopPins[2*(154*16)]);
}
int32_t getSpritePosX(int32_t sprite)
{
return sprites[sprite].x;
}
void setSpritePos(int32_t sprite, int32_t x, int32_t y)
{
sprites[sprite].newX = (int16_t)x;
sprites[sprite].newY = (int16_t)y;
}
void hideSprite(int32_t sprite)
{
sprites[sprite].newX = SCREEN_W;
}
void eraseSprites(void)
{
sprite_t *s = &sprites[SPRITE_NUM-1];
for (int32_t i = SPRITE_NUM-1; i >= 0; i--, s--) // erasing must be done in reverse order
{
if (s->x >= SCREEN_W || s->y >= SCREEN_H) // sprite is hidden, don't draw nor fill clear buffer
continue;
assert(s->refreshBuffer != NULL);
int32_t sw = s->w;
int32_t sh = s->h;
int32_t sx = s->x;
int32_t sy = s->y;
// if x is negative, adjust variables
if (sx < 0)
{
sw += sx; // subtraction
sx = 0;
}
// if y is negative, adjust variables
if (sy < 0)
{
sh += sy; // subtraction
sy = 0;
}
const uint32_t *src32 = s->refreshBuffer;
uint32_t *dst32 = &video.frameBuffer[(sy * SCREEN_W) + sx];
// handle x/y clipping
if (sx+sw >= SCREEN_W) sw = SCREEN_W - sx;
if (sy+sh >= SCREEN_H) sh = SCREEN_H - sy;
const int32_t srcPitch = s->w - sw;
const int32_t dstPitch = SCREEN_W - sw;
for (int32_t y = 0; y < sh; y++)
{
for (int32_t x = 0; x < sw; x++)
*dst32++ = *src32++;
src32 += srcPitch;
dst32 += dstPitch;
}
}
}
void renderSprites(void)
{
sprite_t *s = sprites;
for (int32_t i = 0; i < SPRITE_NUM; i++, s++)
{
if (i == SPRITE_LEFT_LOOP_PIN || i == SPRITE_RIGHT_LOOP_PIN)
continue; // these need special drawing (done elsewhere)
// don't render the text edit cursor if window is inactive
if (i == SPRITE_TEXT_CURSOR)
{
assert(video.window != NULL);
const uint32_t windowFlags = SDL_GetWindowFlags(video.window);
if (!(windowFlags & SDL_WINDOW_INPUT_FOCUS))
continue;
}
// set new sprite position
s->x = s->newX;
s->y = s->newY;
if (s->x >= SCREEN_W || s->y >= SCREEN_H) // sprite is hidden, don't draw nor fill clear buffer
continue;
assert(s->data != NULL && s->refreshBuffer != NULL);
int32_t sw = s->w;
int32_t sh = s->h;
int32_t sx = s->x;
int32_t sy = s->y;
const uint8_t *src8 = s->data;
// if x is negative, adjust variables
if (sx < 0)
{
sw += sx; // subtraction
src8 -= sx; // addition
sx = 0;
}
// if y is negative, adjust variables
if (sy < 0)
{
sh += sy; // subtraction
src8 += (-sy * s->w); // addition
sy = 0;
}
if (sw <= 0 || sh <= 0) // sprite is hidden, don't draw nor fill clear buffer
continue;
uint32_t *dst32 = &video.frameBuffer[(sy * SCREEN_W) + sx];
uint32_t *clr32 = s->refreshBuffer;
// handle x/y clipping
if (sx+sw >= SCREEN_W) sw = SCREEN_W - sx;
if (sy+sh >= SCREEN_H) sh = SCREEN_H - sy;
const int32_t srcPitch = s->w - sw;
const int32_t dstPitch = SCREEN_W - sw;
if (mouse.mouseOverTextBox && i == SPRITE_MOUSE_POINTER)
{
// text edit mouse pointer (has color changing depending on content under it)
for (int32_t y = 0; y < sh; y++)
{
for (int32_t x = 0; x < sw; x++)
{
*clr32++ = *dst32; // fill clear buffer
if (*src8 != PAL_TRANSPR)
{
if (!(*dst32 & 0xFFFFFF) || *dst32 == video.palette[PAL_TEXTMRK])
*dst32 = 0xB3DBF6;
else
*dst32 = 0x004ECE;
}
dst32++;
src8++;
}
clr32 += srcPitch;
src8 += srcPitch;
dst32 += dstPitch;
}
}
else
{
// normal sprites
for (int32_t y = 0; y < sh; y++)
{
for (int32_t x = 0; x < sw; x++)
{
*clr32++ = *dst32; // fill clear buffer
if (*src8 != PAL_TRANSPR)
{
assert(*src8 < PAL_NUM);
*dst32 = video.palette[*src8];
}
dst32++;
src8++;
}
clr32 += srcPitch;
src8 += srcPitch;
dst32 += dstPitch;
}
}
}
}
void renderLoopPins(void)
{
const uint8_t *src8;
int32_t sx, x, y, sw, sh, srcPitch, dstPitch;
uint32_t *clr32, *dst32;
// left loop pin
sprite_t *s = &sprites[SPRITE_LEFT_LOOP_PIN];
assert(s->data != NULL && s->refreshBuffer != NULL);
// set new sprite position
s->x = s->newX;
s->y = s->newY;
if (s->x < SCREEN_W) // loop pin shown?
{
sw = s->w;
sh = s->h;
sx = s->x;
src8 = s->data;
clr32 = s->refreshBuffer;
// if x is negative, adjust variables
if (sx < 0)
{
sw += sx; // subtraction
src8 -= sx; // addition
sx = 0;
}
dst32 = &video.frameBuffer[(s->y * SCREEN_W) + sx];
// handle x clipping
if (sx+sw >= SCREEN_W) sw = SCREEN_W - sx;
srcPitch = s->w - sw;
dstPitch = SCREEN_W - sw;
for (y = 0; y < sh; y++)
{
for (x = 0; x < sw; x++)
{
*clr32++ = *dst32; // fill clear buffer
if (*src8 != PAL_TRANSPR)
{
assert(*src8 < PAL_NUM);
*dst32 = video.palette[*src8];
}
dst32++;
src8++;
}
src8 += srcPitch;
clr32 += srcPitch;
dst32 += dstPitch;
}
}
// right loop pin
s = &sprites[SPRITE_RIGHT_LOOP_PIN];
assert(s->data != NULL && s->refreshBuffer != NULL);
// set new sprite position
s->x = s->newX;
s->y = s->newY;
if (s->x < SCREEN_W) // loop pin shown?
{
s->x = s->newX;
s->y = s->newY;
sw = s->w;
sh = s->h;
sx = s->x;
src8 = s->data;
clr32 = s->refreshBuffer;
// if x is negative, adjust variables
if (sx < 0)
{
sw += sx; // subtraction
src8 -= sx; // addition
sx = 0;
}
dst32 = &video.frameBuffer[(s->y * SCREEN_W) + sx];
// handle x clipping
if (sx+sw >= SCREEN_W) sw = SCREEN_W - sx;
srcPitch = s->w - sw;
dstPitch = SCREEN_W - sw;
for (y = 0; y < sh; y++)
{
for (x = 0; x < sw; x++)
{
*clr32++ = *dst32;
if (*src8 != PAL_TRANSPR)
{
assert(*src8 < PAL_NUM);
if (y < 9 && *src8 == PAL_LOOPPIN)
{
// don't draw marker line on top of left loop pin's thumb graphics
const uint8_t pal = *dst32 >> 24;
if (pal != PAL_DESKTOP && pal != PAL_DSKTOP1 && pal != PAL_DSKTOP2)
*dst32 = video.palette[*src8];
}
else
{
*dst32 = video.palette[*src8];
}
}
dst32++;
src8++;
}
src8 += srcPitch;
clr32 += srcPitch;
dst32 += dstPitch;
}
}
}
void closeVideo(void)
{
if (video.texture != NULL)
{
SDL_DestroyTexture(video.texture);
video.texture = NULL;
}
if (video.renderer != NULL)
{
SDL_DestroyRenderer(video.renderer);
video.renderer = NULL;
}
if (video.window != NULL)
{
SDL_DestroyWindow(video.window);
video.window = NULL;
}
if (video.frameBuffer != NULL)
{
free(video.frameBuffer);
video.frameBuffer = NULL;
}
}
void setWindowSizeFromConfig(bool updateRenderer)
{
#define MAX_UPSCALE_FACTOR 16 // 10112x6400 - ought to be good enough for many years to come
uint8_t i;
SDL_DisplayMode dm;
uint8_t oldUpscaleFactor = video.upscaleFactor;
if (config.windowFlags & WINSIZE_AUTO)
{
int32_t di = SDL_GetWindowDisplayIndex(video.window);
if (di < 0)
di = 0; // return display index 0 (default) on error
// find out which upscaling factor is the biggest to fit on screen
if (SDL_GetDesktopDisplayMode(di, &dm) == 0)
{
for (i = MAX_UPSCALE_FACTOR; i >= 1; i--)
{
// height test is slightly taller because of window title, window borders and taskbar/menu/dock
if (dm.w >= SCREEN_W*i && dm.h >= (SCREEN_H+64)*i)
{
video.upscaleFactor = i;
break;
}
}
if (i == 0)
video.upscaleFactor = 1; // 1x is not going to fit, but use 1x anyways...
}
else
{
// couldn't get screen resolution, set to 1x
video.upscaleFactor = 1;
}
}
else if (config.windowFlags & WINSIZE_1X) video.upscaleFactor = 1;
else if (config.windowFlags & WINSIZE_2X) video.upscaleFactor = 2;
else if (config.windowFlags & WINSIZE_3X) video.upscaleFactor = 3;
else if (config.windowFlags & WINSIZE_4X) video.upscaleFactor = 4;
if (updateRenderer)
{
SDL_SetWindowSize(video.window, SCREEN_W * video.upscaleFactor, SCREEN_H * video.upscaleFactor);
if (oldUpscaleFactor != video.upscaleFactor)
SDL_SetWindowPosition(video.window, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED);
updateRenderSizeVars();
updateMouseScaling();
setMousePosToCenter();
}
}
void updateWindowTitle(bool forceUpdate)
{
if (!forceUpdate && songIsModified == song.isModified)
return; // window title is already set to the same
char *songTitle = getCurrSongFilename();
if (songTitle != NULL)
{
char songTitleTrunc[128];
strncpy(songTitleTrunc, songTitle, sizeof (songTitleTrunc)-1);
songTitleTrunc[sizeof (songTitleTrunc)-1] = '\0';
if (song.isModified)
sprintf(wndTitle, "Fasttracker II clone v%s - \"%s\" (unsaved)", PROG_VER_STR, songTitleTrunc);
else
sprintf(wndTitle, "Fasttracker II clone v%s - \"%s\"", PROG_VER_STR, songTitleTrunc);
}
else
{
if (song.isModified)
sprintf(wndTitle, "Fasttracker II clone v%s - \"untitled\" (unsaved)", PROG_VER_STR);
else
sprintf(wndTitle, "Fasttracker II clone v%s - \"untitled\"", PROG_VER_STR);
}
SDL_SetWindowTitle(video.window, wndTitle);
songIsModified = song.isModified;
}
bool recreateTexture(void)
{
if (video.texture != NULL)
{
SDL_DestroyTexture(video.texture);
video.texture = NULL;
}
if (config.windowFlags & PIXEL_FILTER)
SDL_SetHint("SDL_RENDER_SCALE_QUALITY", "best");
else
SDL_SetHint("SDL_RENDER_SCALE_QUALITY", "nearest");
video.texture = SDL_CreateTexture(video.renderer, SDL_PIXELFORMAT_ARGB8888, SDL_TEXTUREACCESS_STREAMING, SCREEN_W, SCREEN_H);
if (video.texture == NULL)
{
showErrorMsgBox("Couldn't create a %dx%d GPU texture:\n\"%s\"\n\nIs your GPU (+ driver) too old?", SCREEN_W, SCREEN_H, SDL_GetError());
return false;
}
SDL_SetTextureBlendMode(video.texture, SDL_BLENDMODE_NONE);
return true;
}
bool setupWindow(void)
{
SDL_DisplayMode dm;
video.vsync60HzPresent = false;
uint32_t windowFlags = SDL_WINDOW_ALLOW_HIGHDPI;
#if defined (__APPLE__) || defined (_WIN32) // yet another quirk!
windowFlags |= SDL_WINDOW_HIDDEN;
#endif
setWindowSizeFromConfig(false);
int32_t di = SDL_GetWindowDisplayIndex(video.window);
if (di < 0)
di = 0; // return display index 0 (default) on error
SDL_GetDesktopDisplayMode(di, &dm);
video.dMonitorRefreshRate = (double)dm.refresh_rate;
if (dm.refresh_rate >= 59 && dm.refresh_rate <= 61)
video.vsync60HzPresent = true;
if (config.windowFlags & FORCE_VSYNC_OFF)
video.vsync60HzPresent = false;
video.window = SDL_CreateWindow("", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
SCREEN_W * video.upscaleFactor, SCREEN_H * video.upscaleFactor,
windowFlags);
if (video.window == NULL)
{
showErrorMsgBox("Couldn't create SDL window:\n%s", SDL_GetError());
return false;
}
#ifdef __APPLE__ // for macOS we need to do this here for reasons I have forgotten
SDL_PumpEvents();
SDL_ShowWindow(video.window);
#endif
updateWindowTitle(true);
return true;
}
bool setupRenderer(void)
{
uint32_t rendererFlags = 0;
if (video.vsync60HzPresent)
rendererFlags |= SDL_RENDERER_PRESENTVSYNC;
video.renderer = SDL_CreateRenderer(video.window, -1, rendererFlags);
if (video.renderer == NULL)
{
if (video.vsync60HzPresent)
{
// try again without vsync flag
video.vsync60HzPresent = false;
rendererFlags &= ~SDL_RENDERER_PRESENTVSYNC;
video.renderer = SDL_CreateRenderer(video.window, -1, rendererFlags);
}
if (video.renderer == NULL)
{
showErrorMsgBox("Couldn't create SDL renderer:\n\"%s\"\n\nIs your GPU (+ driver) too old?",
SDL_GetError());
return false;
}
}
SDL_RenderSetLogicalSize(video.renderer, SCREEN_W, SCREEN_H);
#if SDL_MINOR_VERSION >= 24 || (SDL_MINOR_VERSION == 0 && SDL_PATCHLEVEL >= 5)
SDL_RenderSetIntegerScale(video.renderer, SDL_TRUE);
#endif
SDL_SetRenderDrawBlendMode(video.renderer, SDL_BLENDMODE_NONE);
if (!recreateTexture())
{
showErrorMsgBox("Couldn't create a %dx%d GPU texture:\n\"%s\"\n\nIs your GPU (+ driver) too old?",
SCREEN_W, SCREEN_H, SDL_GetError());
return false;
}
// framebuffer used by SDL (for texture)
video.frameBuffer = (uint32_t *)malloc(SCREEN_W * SCREEN_H * sizeof (int32_t));
if (video.frameBuffer == NULL)
{
showErrorMsgBox("Not enough memory!");
return false;
}
if (!setupSprites())
return false;
updateRenderSizeVars();
updateMouseScaling();
if (config.specialFlags2 & HARDWARE_MOUSE)
SDL_ShowCursor(SDL_TRUE);
else
SDL_ShowCursor(SDL_FALSE);
SDL_SetRenderDrawColor(video.renderer, 0, 0, 0, SDL_ALPHA_OPAQUE);
return true;
}
void handleRedrawing(void)
{
if (!ui.configScreenShown && !ui.helpScreenShown)
{
if (ui.aboutScreenShown)
{
renderAboutScreenFrame();
}
else if (ui.nibblesShown)
{
if (editor.NI_Play)
moveNibblesPlayers();
}
else
{
if (ui.updatePosSections)
{
ui.updatePosSections = false;
if (!ui.diskOpShown)
{
drawSongLoopStart();
drawSongLength();
drawPosEdNums(editor.songPos);
drawEditPattern(editor.editPattern);
drawPatternLength(editor.editPattern);
drawSongBPM(editor.BPM);
drawSongSpeed(editor.speed);
drawGlobalVol(editor.globalVolume);
if (!songPlaying || editor.wavIsRendering)
setScrollBarPos(SB_POS_ED, editor.songPos, false);
// draw current mode text (not while in extended pattern editor mode)
if (!ui.extended)
{
fillRect(115, 80, 74, 10, PAL_DESKTOP);
if (playMode == PLAYMODE_PATT) textOut(115, 80, PAL_FORGRND, "> Play ptn. <");
else if (playMode == PLAYMODE_EDIT) textOut(121, 80, PAL_FORGRND, "> Editing <");
else if (playMode == PLAYMODE_RECSONG) textOut(114, 80, PAL_FORGRND, "> Rec. sng. <");
else if (playMode == PLAYMODE_RECPATT) textOut(115, 80, PAL_FORGRND, "> Rec. ptn. <");
}
}
}
if (ui.updatePosEdScrollBar)
{
ui.updatePosEdScrollBar = false;
setScrollBarPos(SB_POS_ED, song.songPos, false);
setScrollBarEnd(SB_POS_ED, (song.songLength - 1) + 5);
}
if (!ui.extended)
{
if (!ui.diskOpShown)
drawPlaybackTime();
if (ui.sampleEditorExtShown)
handleSampleEditorExtRedrawing();
else if (ui.scopesShown)
drawScopes();
}
}
}
drawReplayerData();
if (ui.instEditorShown)
handleInstEditorRedrawing();
else if (ui.sampleEditorShown)
handleSamplerRedrawing();
// blink text edit cursor
if (editor.editTextFlag && mouse.lastEditBox != -1)
{
assert(mouse.lastEditBox >= 0 && mouse.lastEditBox < NUM_TEXTBOXES);
textBox_t *txt = &textBoxes[mouse.lastEditBox];
if (editor.textCursorBlinkCounter < 256/2 && !textIsMarked() && !(mouse.leftButtonPressed | mouse.rightButtonPressed))
setSpritePos(SPRITE_TEXT_CURSOR, getTextCursorX(txt), getTextCursorY(txt) - 1); // show text cursor
else
hideSprite(SPRITE_TEXT_CURSOR); // hide text cursor
editor.textCursorBlinkCounter += TEXT_CURSOR_BLINK_RATE;
}
if (editor.busy)
animateBusyMouse();
renderLoopPins();
}
static void drawReplayerData(void)
{
if (songPlaying)
{
if (ui.drawReplayerPianoFlag)
{
ui.drawReplayerPianoFlag = false;
if (ui.instEditorShown && chSyncEntry != NULL)
drawPiano(chSyncEntry);
}
bool drawPosText = true;
if (ui.configScreenShown || ui.nibblesShown ||
ui.helpScreenShown || ui.aboutScreenShown ||
ui.diskOpShown)
{
drawPosText = false;
}
if (drawPosText)
{
if (ui.drawBPMFlag)
{
ui.drawBPMFlag = false;
drawSongBPM(editor.BPM);
}
if (ui.drawSpeedFlag)
{
ui.drawSpeedFlag = false;
drawSongSpeed(editor.speed);
}
if (ui.drawGlobVolFlag)
{
ui.drawGlobVolFlag = false;
drawGlobalVol(editor.globalVolume);
}
if (ui.drawPosEdFlag)
{
ui.drawPosEdFlag = false;
drawPosEdNums(editor.songPos);
setScrollBarPos(SB_POS_ED, editor.songPos, false);
}
if (ui.drawPattNumLenFlag)
{
ui.drawPattNumLenFlag = false;
drawEditPattern(editor.editPattern);
drawPatternLength(editor.editPattern);
}
}
}
else if (ui.instEditorShown)
{
drawPiano(NULL);
}
// handle pattern data updates
if (ui.updatePatternEditor)
{
ui.updatePatternEditor = false;
if (ui.patternEditorShown)
writePattern(editor.row, editor.editPattern);
}
}