void *framebuf;
unsigned int time_msec;
+static const char *cpufeat[] = {
+ "fpu", "vme", "dbgext", "pse", "tsc", "msr", "pae", "mce", "cx8", "apic", 0,
+ "sep", "mtrr", "pge", "mca", "cmov", "pat", "pse36", "psn", "clf", 0,
+ "dtes", "acpi", "mmx", "fxsr", "sse", "sse2", "ss", "htt", "tm1", "ia64", "pbe"
+};
+
+static const char *cpufeat2[] = {
+ "sse3", "pclmul", "dtes64", "monitor", "dscpl", "vmx", "smx", "est", "tm2",
+ "ssse3", "cid", 0, "fma", "cx16", "etprd", "pdcm", 0, "pcide", "dca", "sse4.1",
+ "sse4.2", "x2apic", "movbe", "popcnt", 0, "aes", "xsave", "osxsave", "avx"
+};
+
int init(void)
{
+ int i;
+ struct cpuid_info cpu;
+
+ if(read_cpuid(&cpu) != -1) {
+ printf("CPUID information:\n");
+ printf(" cpuid blocks: %d\n", (int)cpu.maxidx);
+ printf(" CPU vendor: ");
+ for(i=0; i<12; i++) {
+ putchar(cpu.vendor[i]);
+ }
+ putchar('\n');
+ printf(" stepping: %u, model: %u, family: %u\n", CPUID_STEPPING(cpu.id),
+ CPUID_MODEL(cpu.id), CPUID_FAMILY(cpu.id));
+ printf(" features:");
+ for(i=0; i<sizeof cpufeat / sizeof *cpufeat; i++) {
+ if(cpufeat[i] && (cpu.feat & (1 << i))) {
+ printf(" %s", cpufeat[i]);
+ }
+ }
+ for(i=0; i<sizeof cpufeat2 / sizeof *cpufeat2; i++) {
+ if(cpufeat2[i] && (cpu.feat2 & (1 << i))) {
+ printf(" %s", cpufeat2[i]);
+ }
+ }
+ putchar('\n');
+ }
+
printf("initialized graphics %dx%d %dbpp\n", fb_width, fb_height, fb_bpp);
printf(" rgb mask: %x %x %x\n", fb_rmask, fb_gmask, fb_bmask);
printf(" rgb shift: %d %d %d\n", fb_rshift, fb_gshift, fb_bshift);
{
}
-#define XORRGB(x, y, zoom, r, g, b) \
+#ifdef NOZOOM
+#define XORRGB(x, y, dx, dy, zoom, r, g, b) \
+ do { \
+ int xor = (((x) - fb_width/2) + (dx)) ^ (((y) - fb_height/2) + (dy)); \
+ (r) = xor >> 2; \
+ (g) = xor >> 1; \
+ (b) = xor; \
+ } while(0)
+#else
+#define XORRGB(x, y, dx, dy, zoom, r, g, b) \
do { \
- int xor = (((x) - fb_width/2) * (zoom) >> 16) ^ (((y) - fb_height/2) * (zoom) >> 16); \
+ int xor = ((((x) - fb_width/2) * (zoom) >> 16) + (dx)) ^ ((((y) - fb_height/2) * (zoom) >> 16) + (dy)); \
(r) = xor >> 2; \
(g) = xor >> 1; \
(b) = xor; \
} while(0)
+#endif
void redraw(void)
{
- int i, j, r, g, b, xoffs, yoffs, zoom;
+ int i, j, r, g, b, xoffs, yoffs;
+#ifndef NOZOOM
+ int zoom;
+#endif
unsigned char *fbptr;
uint16_t *fbptr16;
uint32_t *fbptr32;
- xoffs = COS(time_msec >> 3) * fb_width >> 15;
- yoffs = SIN(time_msec >> 2) * fb_height >> 16;
- zoom = (SIN(time_msec >> 5) >> 1) + 65536;
+ xoffs = COS(time_msec >> 2) * fb_width >> 14;
+ yoffs = SIN(time_msec >> 1) * fb_height >> 15;
+#ifndef NOZOOM
+ zoom = (SIN(time_msec >> 3) << 1) + 0x18000;
+#endif
switch(fb_bpp) {
case 15:
fbptr16 = framebuf;
for(i=0; i<fb_height; i++) {
for(j=0; j<fb_width; j++) {
- XORRGB(j + xoffs, i + yoffs, zoom, r, g, b);
+ XORRGB(j, i, xoffs, yoffs, zoom, r, g, b);
*fbptr16++ = (((r >> 3) << fb_rshift) & fb_rmask) |
(((g >> 2) << fb_gshift) & fb_gmask) |
(((b >> 3) << fb_bshift) & fb_bmask);
fbptr = framebuf;
for(i=0; i<fb_height; i++) {
for(j=0; j<fb_width; j++) {
- XORRGB(j + xoffs, i + yoffs, zoom, r, g, b);
+ XORRGB(j, i, xoffs, yoffs, zoom, r, g, b);
*fbptr++ = r;
*fbptr++ = g;
*fbptr++ = b;
fbptr32 = framebuf;
for(i=0; i<fb_height; i++) {
for(j=0; j<fb_width; j++) {
- XORRGB(j + xoffs, i + yoffs, zoom, r, g, b);
+ XORRGB(j, i, xoffs, yoffs, zoom, r, g, b);
*fbptr32++ = (((r) << fb_rshift) & fb_rmask) |
(((g) << fb_gshift) & fb_gmask) |
(((b) << fb_bshift) & fb_bmask);