# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1458600907 -7200
# Node ID 11f024648101a9f2e996ae791f7cf88ebbbd523a

initial

diff -r 000000000000 -r 11f024648101 Makefile
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Makefile	Tue Mar 22 00:55:07 2016 +0200
@@ -0,0 +1,20 @@
+src = $(wildcard src/*.c)
+obj = $(src:.c=.o)
+bin = test
+
+CFLAGS = -pedantic -Wall -g
+LDFLAGS = -lSDL -lm -lpthread
+
+.PHONY: all
+all: .clang_complete $(bin)
+
+$(bin): $(obj)
+	$(CC) -o $@ $(obj) $(LDFLAGS)
+
+.clang_complete:
+	echo '-x c' >$@
+	echo $(CFLAGS) >>$@
+
+.PHONY: clean
+clean:
+	rm -f $(obj) $(bin)
diff -r 000000000000 -r 11f024648101 src/app.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/app.c	Tue Mar 22 00:55:07 2016 +0200
@@ -0,0 +1,36 @@
+#include <stdint.h>
+#include "app.h"
+
+int app_init(void)
+{
+	if(p3d_init() == -1) {
+		fprintf(stderr, "failed to initialize par3d\n");
+		return -1;
+	}
+	return 0;
+}
+
+void app_cleanup(void)
+{
+}
+
+void app_draw(void)
+{
+	int i, j;
+	uint32_t *pptr = fb_pixels;
+	for(i=0; i<fb_height; i++) {
+		for(j=0; j<fb_width; j++) {
+			unsigned char val = i ^ j;
+			*pptr++ = val | (val << 8) | (val << 16);
+		}
+	}
+
+	p3d_setfb(fb_width, fb_height, fb_pixels);
+}
+
+void app_keyboard(int key, int pressed)
+{
+	if(key == 27) {
+		app_quit();
+	}
+}
diff -r 000000000000 -r 11f024648101 src/app.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/app.h	Tue Mar 22 00:55:07 2016 +0200
@@ -0,0 +1,16 @@
+#ifndef APP_H_
+#define APP_H_
+
+void *fb_pixels;
+int fb_width, fb_height;
+
+int app_init(void);
+void app_cleanup(void);
+
+void app_draw(void);
+void app_keyboard(int key, int pressed);
+
+/* stuff defined in main_sdl.c */
+void app_quit(void);
+
+#endif	/* APP_H_ */
diff -r 000000000000 -r 11f024648101 src/main_sdl.c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/main_sdl.c	Tue Mar 22 00:55:07 2016 +0200
@@ -0,0 +1,92 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <SDL/SDL.h>
+#include "app.h"
+
+static int handle_event(SDL_Event *ev);
+
+static SDL_Surface *fbsurf;
+static int quit;
+
+int main(int argc, char **argv)
+{
+	unsigned long msec, prev_fps_upd;
+	unsigned int num_frames, framerate;
+
+	if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) == -1) {
+		fprintf(stderr, "failed to initialize SDL\n");
+		return 1;
+	}
+	if(!(fbsurf = SDL_SetVideoMode(800, 600, 32, SDL_SWSURFACE | SDL_RESIZABLE))) {
+		fprintf(stderr, "failed to create surface\n");
+		SDL_Quit();
+		return 1;
+	}
+	SDL_WM_SetCaption("parallel rasterization test", 0);
+
+	if(app_init() == -1) {
+		return 1;
+	}
+
+	prev_fps_upd = SDL_GetTicks();
+	num_frames = 0;
+
+	while(!quit) {
+		unsigned long dt;
+		SDL_Event ev;
+		while(SDL_PollEvent(&ev)) {
+			if(handle_event(&ev) == -1 || quit) {
+				goto break_main_loop;
+			}
+		}
+
+		if(SDL_MUSTLOCK(fbsurf)) {
+			SDL_LockSurface(fbsurf);
+		}
+		fb_pixels = fbsurf->pixels;
+		fb_width = fbsurf->w;
+		fb_height = fbsurf->h;
+
+		app_draw();
+
+		if(SDL_MUSTLOCK(fbsurf)) {
+			SDL_UnlockSurface(fbsurf);
+		}
+		SDL_Flip(fbsurf);
+
+		++num_frames;
+		msec = SDL_GetTicks();
+		dt = msec - prev_fps_upd;
+		if(dt > 1500) {
+			char tmp[32];
+			framerate = 10000 * num_frames / dt;
+			num_frames = 0;
+			prev_fps_upd = msec;
+
+			sprintf(tmp, "fps: %u.%u\n", framerate / 10, framerate % 10);
+			SDL_WM_SetCaption(tmp, 0);
+		}
+	}
+break_main_loop:
+	app_cleanup();
+	SDL_Quit();
+	return 0;
+}
+
+void app_quit(void)
+{
+	quit = 1;
+}
+
+static int handle_event(SDL_Event *ev)
+{
+	switch(ev->type) {
+	case SDL_KEYDOWN:
+		app_keyboard(ev->key.keysym.sym, ev->key.state == SDL_PRESSED);
+		break;
+
+	default:
+		break;
+	}
+	return 0;
+}
diff -r 000000000000 -r 11f024648101 src/par3d.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/par3d.h	Tue Mar 22 00:55:07 2016 +0200
@@ -0,0 +1,11 @@
+#ifndef PAR3D_H_
+#define PAR3D_H_
+
+int p3d_init(void);
+void p3d_setfb(int width, int height, uint32_t *pixels);
+
+int p3d_vertex_buffer(int vcount, int nfloats);
+void *p3d_map_buffer(int vb);
+void p3d_unmap_buffer(int vb);
+
+#endif	/* PAR3D_H_ */