diff options
Diffstat (limited to 'tests/modedemo/demo.c')
| -rw-r--r-- | tests/modedemo/demo.c | 577 |
1 files changed, 577 insertions, 0 deletions
diff --git a/tests/modedemo/demo.c b/tests/modedemo/demo.c new file mode 100644 index 00000000..00020bde --- /dev/null +++ b/tests/modedemo/demo.c @@ -0,0 +1,577 @@ +/* + * Some defines to define the behavior of the program + */ + +#define CLEAN_FBDEV +#undef DEMO_CLONE + +#define SIZE_X 2048 +#define SIZE_Y 2048 +/* Pitch needs to be power of two */ +#define PITCH 2048 + +#include <assert.h> +#include <stdio.h> +#include <stdlib.h> +#include <stdint.h> +#include <unistd.h> +#include <string.h> +#ifdef CLEAN_FBDEV +#include <errno.h> +#include <fcntl.h> +#include <sys/ioctl.h> +#include <linux/fb.h> +#endif + +#include "xf86drm.h" +#include "xf86drmMode.h" + +/* old functions to be replaced */ +drmModeFBPtr createFB(int fd, drmModeResPtr res); +void testCursor(int fd, uint32_t crtc); +void prettyColors(int fd, unsigned int handle); +void prettyCursor(int fd, unsigned int handle, unsigned int color); + +#ifdef CLEAN_FBDEV +struct fb_var_screeninfo var; +struct fb_fix_screeninfo fix; +#endif + +/* structs for the demo_driver */ + +struct demo_driver; + +struct demo_screen +{ + /* drm stuff */ + drmBO buffer; + drmModeFBPtr fb; + drmModeCrtcPtr crtc; + + size_t num_outputs; + uint32_t outputs_id[8]; + drmModeOutputPtr outputs[8]; + + struct drm_mode_modeinfo *mode; + + /* virtual buffer */ + uint32_t virt_x; + uint32_t virt_y; + uint32_t pitch; + + /* parent */ + struct demo_driver *driver; +}; + +#define DEMO_MAX_SCREENS 4 +#define MAX_FIND_OUTPUTS 8 + +struct demo_driver +{ + /* drm stuff */ + int fd; + drmModeResPtr res; + + /* screens */ + size_t numScreens; + struct demo_screen screens[DEMO_MAX_SCREENS]; +}; + +struct demo_driver* demoCreateDriver(void); +void demoUpdateRes(struct demo_driver *driver); +int demoCreateScreens(struct demo_driver *driver); +int demoCreateScreenCloned(struct demo_driver *driver); +void demoTakeDownScreen(struct demo_screen *screen); +int demoFindConnectedOutputs(struct demo_driver *driver, drmModeOutputPtr *out, size_t max_out); +drmModeCrtcPtr demoFindFreeCrtc(struct demo_driver *driver, drmModeOutputPtr output); +void demoPanScreen(struct demo_screen *screen, uint16_t x, uint16_t y); +/* yet to be implemented */ +void demoMouseActivate(struct demo_screen *screen); +void demoMouseMove(struct demo_screen *screen, uint16_t x, uint16_t y); + +static struct drm_mode_modeinfo mode = { + .name = "Test mode", + .clock = 25200, + .hdisplay = 640, + .hsync_start = 656, + .hsync_end = 752, + .htotal = 800, + .hskew = 0, + .vdisplay = 480, + .vsync_start = 490, + .vsync_end = 492, + .vtotal = 525, + .vscan = 0, + .vrefresh = 60000, /* vertical refresh * 1000 */ + .flags = 10, +}; + +int main(int argc, char **argv) +{ + struct demo_driver *driver; + int num; + int i; + +#ifdef CLEAN_FBDEV + int fbdev_fd; + + fbdev_fd = open("/dev/fb0", O_RDWR); + + memset(&var, 0, sizeof(struct fb_var_screeninfo)); + memset(&fix, 0, sizeof(struct fb_fix_screeninfo)); + + if (ioctl(fbdev_fd, FBIOGET_VSCREENINFO, &var)) + printf("var %s\n", strerror(errno)); + if (ioctl(fbdev_fd, FBIOGET_FSCREENINFO, &fix)) + printf("fix %s\n", strerror(errno)); +#endif + + printf("starting demo\n"); + + driver = demoCreateDriver(); + + if (!driver) { + printf("failed to create driver\n"); + return 1; + } + +#ifndef DEMO_CLONE + num = demoCreateScreens(driver); +#else + num = demoCreateScreenCloned(driver); +#endif + + if (num < 1) { + printf("no screens attached or an error occured\n"); + return 1; + } + printf("created %i screens\n", num); + + for (i = 0; i < num; i++) { + prettyColors(driver->fd, driver->screens[i].fb->handle); + } + sleep(1); + + for (i = 0; i < num; i++) { + printf("%i: 100 0\n", i); + demoPanScreen(&driver->screens[i], 100, 0); + sleep(1); + + printf("%i: 0 100\n", i); + demoPanScreen(&driver->screens[i], 0, 100); + sleep(1); + + printf("%i: 100 100\n", i); + demoPanScreen(&driver->screens[i], 100, 100); + sleep(1); + + printf("%i: 0 0\n", i); + demoPanScreen(&driver->screens[i], 0, 1); + sleep(1); + testCursor(driver->fd, driver->screens[i].crtc->crtc_id); + } + + sleep(2); + printf("taking down screens\n"); + for (i = 0; i < num; i++) { + demoTakeDownScreen(&driver->screens[i]); + } + +#ifdef CLEAN_FBDEV + if (ioctl(fbdev_fd, FBIOPUT_VSCREENINFO, &var)) + printf("var %s\n", strerror(errno)); + + close(fbdev_fd); +#endif + + printf("ok\n"); + return 0; +} + +int demoCreateScreens(struct demo_driver *driver) +{ + drmModeOutputPtr out[MAX_FIND_OUTPUTS]; + int num; + int num_screens = 0; + struct demo_screen *screen; + int ret = 0; + int i; + + num = demoFindConnectedOutputs(driver, out, MAX_FIND_OUTPUTS); + if (num < 0) + return 0; + + printf("found %i connected outputs\n", num); + + for (i = 0; i < num; i++) { + screen = &driver->screens[i]; + + screen->crtc = demoFindFreeCrtc(driver, out[i]); + if (!screen->crtc) { + printf("found no free crtc for output\n"); + drmModeFreeOutput(out[i]); + continue; + } + + screen->fb = createFB(driver->fd, driver->res); + if (!screen->fb) { + drmModeFreeOutput(out[i]); + drmModeFreeCrtc(screen->crtc); + screen->crtc = 0; + printf("could not create framebuffer\n"); + continue; + } + + screen->virt_x = SIZE_X; + screen->virt_y = SIZE_Y; + screen->pitch = PITCH; + + screen->outputs[0] = out[i]; + screen->outputs_id[0] = out[i]->output_id; + screen->num_outputs = 1; + + screen->mode = &mode; + screen->driver = driver; + + ret = drmModeSetCrtc( + driver->fd, + screen->crtc->crtc_id, + screen->fb->buffer_id, + 0, 0, + screen->outputs_id, screen->num_outputs, + screen->mode); + + if (ret) { + printf("failed to set mode\n"); + demoTakeDownScreen(screen); + } else { + num_screens++; + } + + demoUpdateRes(driver); + } + + return num_screens; +} + +int demoCreateScreenCloned(struct demo_driver *driver) +{ + drmModeOutputPtr out[MAX_FIND_OUTPUTS]; + int num; + struct demo_screen *screen; + int ret = 0; + int i; + + num = demoFindConnectedOutputs(driver, out, MAX_FIND_OUTPUTS); + if (num < 0) + return 0; + + printf("found %i connected outputs\n", num); + + screen = &driver->screens[0]; + + screen->fb = createFB(driver->fd, driver->res); + if (!screen->fb) { + printf("could not create framebuffer\n"); + return 0; + } + + screen->mode = &mode; + screen->driver = driver; + + screen->virt_x = SIZE_X; + screen->virt_y = SIZE_Y; + screen->pitch = PITCH; + + screen->num_outputs = 0; + for (i = 0; i < num; i++) { + screen->crtc = demoFindFreeCrtc(driver, out[i]); + if (!screen->crtc) { + printf("found no free crtc for output\n"); + drmModeFreeOutput(out[i]); + continue; + } + + screen->outputs[screen->num_outputs] = out[i]; + screen->outputs_id[screen->num_outputs] = out[i]->output_id; + screen->num_outputs++; + printf("%u, %u\n", out[i]->output_id, screen->num_outputs); + } + + ret = drmModeSetCrtc( + driver->fd, + screen->crtc->crtc_id, + screen->fb->buffer_id, + 0, 0, + screen->outputs_id, screen->num_outputs, + screen->mode); + + if (ret) { + printf("failed to set mode\n"); + demoTakeDownScreen(screen); + return 0; + } + + demoUpdateRes(driver); + + return 1; +} + +void demoTakeDownScreen(struct demo_screen *screen) +{ + int fd = screen->driver->fd; + int i; + drmBO bo; + +#if 0 + /* This can bust the fbdev arrangement as it basically unhooks + * the outputs and the fbdev backend doesn't know how to put things + * back on track. Realistically, it's up to the crtc owner to restore + * things..... + * + * So if you are mixing API's make sure the modesetting owner puts + * back the original CRTC arrangement so fbdev can continue... + * + * Ho-hum.. + */ + if (screen->crtc) + drmModeSetCrtc(fd, screen->crtc->crtc_id, 0, 0, 0, 0, 0, 0); +#endif + + if (screen->fb) + drmModeRmFB(fd, screen->fb->buffer_id); + + /* maybe we should keep a pointer to the bo on the screen */ + if (screen->fb && !drmBOReference(fd, screen->fb->handle, &bo)) { + drmBOUnreference(fd, &bo); + drmBOUnreference(fd, &bo); + } else { + printf("bo error\n"); + } + + for (i = 0; i < screen->num_outputs; i++) { + drmModeFreeOutput(screen->outputs[i]); + screen->outputs[i] = NULL; + } + + drmModeFreeCrtc(screen->crtc); + drmModeFreeFB(screen->fb); + + screen->crtc = NULL; + screen->fb = NULL; +} + +drmModeCrtcPtr demoFindFreeCrtc(struct demo_driver *driver, drmModeOutputPtr output) +{ + drmModeCrtcPtr crtc; + int i, j, used = 0; + drmModeResPtr res = driver->res; + + for (i = 0; i < res->count_crtcs; i++) { + used = 0; + for (j = 0; j < DEMO_MAX_SCREENS; j++) { + crtc = driver->screens[j].crtc; + + if (crtc && crtc->crtc_id == res->crtcs[i]) + used = 1; + } + + if (!used) { + crtc = drmModeGetCrtc(driver->fd, res->crtcs[i]); + break; + } else { + crtc = 0; + } + } + + return crtc; +} + +struct demo_driver* demoCreateDriver(void) +{ + struct demo_driver* driver = malloc(sizeof(struct demo_driver)); + + memset(driver, 0, sizeof(struct demo_driver)); + + driver->fd = drmOpen("i915",NULL); + + if (driver->fd < 0) { + printf("Failed to open the card fb\n"); + goto err_driver; + } + + demoUpdateRes(driver); + if (!driver->res) { + printf("could not retrive resources\n"); + goto err_res; + } + + return driver; + +err_res: + drmClose(driver->fd); +err_driver: + free(driver); + return NULL; +} + +void demoUpdateRes(struct demo_driver *driver) +{ + if (driver->res) + drmModeFreeResources(driver->res); + + driver->res = drmModeGetResources(driver->fd); + + if (!driver->res) + printf("failed to get resources from kernel\n"); +} + +int demoFindConnectedOutputs(struct demo_driver *driver, drmModeOutputPtr *out, size_t max_out) +{ + int count = 0; + int i; + int fd = driver->fd; + drmModeResPtr res = driver->res; + + drmModeOutputPtr output; + + for (i = 0; i < res->count_outputs && count < max_out; i++) { + output = drmModeGetOutput(fd, res->outputs[i]); + + if (!output) + continue; + + if (output->connection != DRM_MODE_CONNECTED) { + drmModeFreeOutput(output); + continue; + } + + out[count++] = output; + } + + return count; +} + +void demoPanScreen(struct demo_screen *screen, uint16_t x, uint16_t y) +{ + drmModeSetCrtc( + screen->driver->fd, + screen->crtc->crtc_id, + screen->fb->buffer_id, + x, y, + screen->outputs_id, screen->num_outputs, + screen->mode); +} + +drmModeFBPtr createFB(int fd, drmModeResPtr res) +{ + drmModeFBPtr frame; + unsigned int fb = 0; + int ret = 0; + drmBO bo; + + ret = drmBOCreate(fd, SIZE_X * SIZE_Y * 4, 0, 0, + DRM_BO_FLAG_READ | + DRM_BO_FLAG_WRITE | + DRM_BO_FLAG_MEM_TT | + DRM_BO_FLAG_MEM_VRAM | + DRM_BO_FLAG_NO_EVICT, + DRM_BO_HINT_DONT_FENCE, &bo); + + if (ret) { + printf("failed to create framebuffer (ret %d)\n",ret); + goto err; + } + + ret = drmModeAddFB(fd, SIZE_X, SIZE_Y, 32, 32, PITCH * 4, bo->handle, &fb); + + if (ret) + goto err_bo; + + frame = drmModeGetFB(fd, fb); + + if (!frame) + goto err_bo; + + return frame; + +err_bo: + drmBOUnreference(fd, &bo); +err: + return 0; +} + +void draw(unsigned int x, unsigned int y, unsigned int w, unsigned int h, unsigned int v, unsigned int *ptr) +{ + int i, j; + + for (i = x; i < x + w; i++) + for(j = y; j < y + h; j++) + ptr[(i * PITCH) + j] = v; + +} + +void prettyColors(int fd, unsigned int handle) +{ + drmBO bo; + unsigned int *ptr; + int i; + + drmBOReference(fd, handle, &bo); + drmBOMap(fd, &bo, DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, (void**)&ptr); + + for (i = 0; i < (SIZE_X*SIZE_Y); i++) + ptr[i] = 0xFFFFFFFF; + + for (i = 0; i < 8; i++) + draw(i * 40, i * 40, 40, 40, 0, ptr); + + + draw(200, 100, 40, 40, 0xff00ff, ptr); + draw(100, 200, 40, 40, 0xff00ff, ptr); + + drmBOUnmap(fd, &bo); +} + +void testCursor(int fd, uint32_t crtc) +{ + drmBO bo; + int ret; + ret = drmBOCreate(fd, 64 * 64 * 4, 0, 0, + DRM_BO_FLAG_READ | + DRM_BO_FLAG_WRITE | + DRM_BO_FLAG_MEM_VRAM | + DRM_BO_FLAG_NO_EVICT, + DRM_BO_HINT_DONT_FENCE, &bo); + + prettyCursor(fd, bo.handle, 0xFFFF00FF); + printf("set cursor\n"); + drmModeSetCursor(fd, crtc, &bo, 64, 64); + printf("move cursor 0, 0\n"); + drmModeMoveCursor(fd, crtc, 0, 0); + sleep(1); + prettyCursor(fd, bo.handle, 0xFFFF0000); + printf("move cursor 40, 40\n"); + drmModeMoveCursor(fd, crtc, 40, 40); + sleep(1); + printf("move cursor 100, 100\n"); + drmModeMoveCursor(fd, crtc, 100, 100); + sleep(1); + drmModeSetCursor(fd, crtc, NULL, 0, 0); +} + +void prettyCursor(int fd, unsigned int handle, unsigned int color) +{ + drmBO bo; + unsigned int *ptr; + int i; + + drmBOReference(fd, handle, &bo); + drmBOMap(fd, &bo, DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE, 0, (void**)&ptr); + + for (i = 0; i < (64 * 64); i++) + ptr[i] = color; + + drmBOUnmap(fd, &bo); + drmBOUnreference(fd, &bo); +} |