Mercurial > sdl-ios-xcode
changeset 2887:f8c0c5ef6d54
Added a test program for line drawing
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 20 Dec 2008 12:32:53 +0000 |
| parents | 633ce79b7a5b |
| children | 32e8bbba1e94 |
| files | test/Makefile.in test/testlines2.c |
| diffstat | 2 files changed, 191 insertions(+), 1 deletions(-) [+] |
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--- a/test/Makefile.in Sat Dec 20 12:32:38 2008 +0000 +++ b/test/Makefile.in Sat Dec 20 12:32:53 2008 +0000 @@ -7,7 +7,7 @@ CFLAGS = @CFLAGS@ LIBS = @LIBS@ -TARGETS = checkkeys$(EXE) graywin$(EXE) loopwave$(EXE) testaudioinfo$(EXE) testmultiaudio$(EXE) testalpha$(EXE) testbitmap$(EXE) testblitspeed$(EXE) testcdrom$(EXE) testcursor$(EXE) testdyngl$(EXE) testerror$(EXE) testfile$(EXE) testgamma$(EXE) testgl$(EXE) testgl2$(EXE) testhread$(EXE) testiconv$(EXE) testjoystick$(EXE) testkeys$(EXE) testlock$(EXE) testoverlay2$(EXE) testoverlay$(EXE) testpalette$(EXE) testplatform$(EXE) testsem$(EXE) testsprite$(EXE) testsprite2$(EXE) testtimer$(EXE) testver$(EXE) testvidinfo$(EXE) testwin$(EXE) testwm$(EXE) testwm2$(EXE) threadwin$(EXE) torturethread$(EXE) testloadso$(EXE) testhaptic$(EXE) testmmousetablet$(EXE) +TARGETS = checkkeys$(EXE) graywin$(EXE) loopwave$(EXE) testaudioinfo$(EXE) testmultiaudio$(EXE) testalpha$(EXE) testbitmap$(EXE) testblitspeed$(EXE) testcdrom$(EXE) testcursor$(EXE) testdyngl$(EXE) testerror$(EXE) testfile$(EXE) testgamma$(EXE) testgl$(EXE) testgl2$(EXE) testhread$(EXE) testiconv$(EXE) testjoystick$(EXE) testkeys$(EXE) testlines2$(EXE) testlock$(EXE) testoverlay2$(EXE) testoverlay$(EXE) testpalette$(EXE) testplatform$(EXE) testsem$(EXE) testsprite$(EXE) testsprite2$(EXE) testtimer$(EXE) testver$(EXE) testvidinfo$(EXE) testwin$(EXE) testwm$(EXE) testwm2$(EXE) threadwin$(EXE) torturethread$(EXE) testloadso$(EXE) testhaptic$(EXE) testmmousetablet$(EXE) all: Makefile $(TARGETS) @@ -74,6 +74,9 @@ testkeys$(EXE): $(srcdir)/testkeys.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) +testlines2$(EXE): $(srcdir)/testlines2.c $(srcdir)/common.c + $(CC) -o $@ $(srcdir)/testlines2.c $(srcdir)/common.c $(CFLAGS) $(LIBS) + testlock$(EXE): $(srcdir)/testlock.c $(CC) -o $@ $? $(CFLAGS) $(LIBS)
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/testlines2.c Sat Dec 20 12:32:53 2008 +0000 @@ -0,0 +1,187 @@ + +/* Simple program: draw as many random lines on the screen as possible */ + +#include <stdlib.h> +#include <stdio.h> +#include <time.h> + +#include "common.h" + +#define NUM_LINES 100 + +static CommonState *state; +static int num_lines; +static SDL_bool cycle_color; +static SDL_bool cycle_alpha; +static int cycle_direction = 1; +static int current_alpha = 255; +static int current_color = 255; +static SDL_BlendMode blendMode = SDL_BLENDMODE_NONE; + +void +DrawLines(SDL_WindowID window) +{ + int i, n; + int x1, y1, x2, y2; + int window_w, window_h; + + SDL_SelectRenderer(window); + + /* Query the sizes */ + SDL_GetWindowSize(window, &window_w, &window_h); + + /* Move the sprite, bounce at the wall, and draw */ + n = 0; + SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF); + SDL_RenderFill(NULL); + + SDL_SetRenderDrawBlendMode(blendMode); + for (i = 0; i < num_lines; ++i) { + /* Cycle the color and alpha, if desired */ + if (cycle_color) { + current_color += cycle_direction; + if (current_color < 0) { + current_color = 0; + cycle_direction = -cycle_direction; + } + if (current_color > 255) { + current_color = 255; + cycle_direction = -cycle_direction; + } + } + if (cycle_alpha) { + current_alpha += cycle_direction; + if (current_alpha < 0) { + current_alpha = 0; + cycle_direction = -cycle_direction; + } + if (current_alpha > 255) { + current_alpha = 255; + cycle_direction = -cycle_direction; + } + } + SDL_SetRenderDrawColor(255, (Uint8) current_color, + (Uint8) current_color, (Uint8) current_alpha); + + x1 = rand() % window_w; + x2 = rand() % window_w; + y1 = rand() % window_h; + y2 = rand() % window_h; + SDL_RenderLine(x1, y1, x2, y2); + } + SDL_SetRenderDrawBlendMode(SDL_BLENDMODE_NONE); + + /* Update the screen! */ + SDL_RenderPresent(); +} + +int +main(int argc, char *argv[]) +{ + int i, done; + SDL_Event event; + Uint32 then, now, frames; + + /* Initialize parameters */ + num_lines = NUM_LINES; + + /* Initialize test framework */ + state = CommonCreateState(argv, SDL_INIT_VIDEO); + if (!state) { + return 1; + } + for (i = 1; i < argc;) { + int consumed; + + consumed = CommonArg(state, i); + if (consumed == 0) { + consumed = -1; + if (SDL_strcasecmp(argv[i], "--blend") == 0) { + if (argv[i + 1]) { + if (SDL_strcasecmp(argv[i + 1], "none") == 0) { + blendMode = SDL_BLENDMODE_NONE; + consumed = 2; + } else if (SDL_strcasecmp(argv[i + 1], "mask") == 0) { + blendMode = SDL_BLENDMODE_MASK; + consumed = 2; + } else if (SDL_strcasecmp(argv[i + 1], "blend") == 0) { + blendMode = SDL_BLENDMODE_BLEND; + consumed = 2; + } else if (SDL_strcasecmp(argv[i + 1], "add") == 0) { + blendMode = SDL_BLENDMODE_ADD; + consumed = 2; + } else if (SDL_strcasecmp(argv[i + 1], "mod") == 0) { + blendMode = SDL_BLENDMODE_MOD; + consumed = 2; + } + } + } else if (SDL_strcasecmp(argv[i], "--cyclecolor") == 0) { + cycle_color = SDL_TRUE; + consumed = 1; + } else if (SDL_strcasecmp(argv[i], "--cyclealpha") == 0) { + cycle_alpha = SDL_TRUE; + consumed = 1; + } else if (SDL_isdigit(*argv[i])) { + num_lines = SDL_atoi(argv[i]); + consumed = 1; + } + } + if (consumed < 0) { + fprintf(stderr, + "Usage: %s %s [--blend none|mask|blend|add|mod] [--cyclecolor] [--cyclealpha]\n", + argv[0], CommonUsage(state)); + return 1; + } + i += consumed; + } + if (!CommonInit(state)) { + return 2; + } + + /* Create the windows and initialize the renderers */ + for (i = 0; i < state->num_windows; ++i) { + SDL_SelectRenderer(state->windows[i]); + SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF); + SDL_RenderFill(NULL); + } + + srand(time(NULL)); + + /* Main render loop */ + frames = 0; + then = SDL_GetTicks(); + done = 0; + while (!done) { + /* Check for events */ + ++frames; + while (SDL_PollEvent(&event)) { + CommonEvent(state, &event, &done); + switch (event.type) { + case SDL_WINDOWEVENT: + switch (event.window.event) { + case SDL_WINDOWEVENT_EXPOSED: + SDL_SelectRenderer(event.window.windowID); + SDL_SetRenderDrawColor(0xA0, 0xA0, 0xA0, 0xFF); + SDL_RenderFill(NULL); + break; + } + break; + default: + break; + } + } + for (i = 0; i < state->num_windows; ++i) { + DrawLines(state->windows[i]); + } + } + + /* Print out some timing information */ + now = SDL_GetTicks(); + if (now > then) { + double fps = ((double) frames * 1000) / (now - then); + printf("%2.2f frames per second\n", fps); + } + return 0; +} + +/* vi: set ts=4 sw=4 expandtab: */