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#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <unistd.h>
#include <string.h>
#include "xf86drm.h"
#include "xf86drmMode.h"
#define SIZE_X 2048
#define SIZE_Y 2048
/* Pitch needs to be power of two */
#define PITCH 2048
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,
};
drmModeFBPtr createFB(int fd, drmModeResPtr res);
int findConnectedOutputs(int fd, drmModeResPtr res, drmModeOutputPtr *out);
drmModeCrtcPtr findFreeCrtc(int fd, drmModeResPtr res);
void prettyColors(int fd, unsigned int handle);
int main(int argc, char **argv)
{
int fd;
const char *driver = "i915"; /* hardcoded for now */
drmModeResPtr res;
drmModeFBPtr framebuffer;
int numOutputs;
drmModeOutputPtr out[8];
drmModeCrtcPtr crtc;
printf("Starting test\n");
fd = drmOpen(driver, NULL);
if (fd < 0) {
printf("Failed to open the card fb\n");
return 1;
}
res = drmModeGetResources(fd);
if (res == 0) {
printf("Failed to get resources from card\n");
drmClose(fd);
return 1;
}
framebuffer = createFB(fd, res);
if (framebuffer == NULL) {
printf("Failed to create framebuffer\n");
return 1;
}
numOutputs = findConnectedOutputs(fd, res, out);
if (numOutputs < 1) {
printf("Failed to find connected outputs\n");
return 1;
}
crtc = findFreeCrtc(fd, res);
if (numOutputs < 1) {
printf("Couldn't find a free crtc\n");
return 1;
}
prettyColors(fd, framebuffer->handle);
printf("0 0\n");
drmModeSetCrtc(fd, crtc->crtc_id, framebuffer->buffer_id, 0, 0, &out[0]->output_id, 1, &mode);
sleep(2);
printf("0 100\n");
drmModeSetCrtc(fd, crtc->crtc_id, framebuffer->buffer_id, 0, 100, &out[0]->output_id, 1, &mode);
sleep(2);
printf("100 0\n");
drmModeSetCrtc(fd, crtc->crtc_id, framebuffer->buffer_id, 100, 0, &out[0]->output_id, 1, &mode);
sleep(2);
printf("100 100\n");
drmModeSetCrtc(fd, crtc->crtc_id, framebuffer->buffer_id, 100, 100, &out[0]->output_id, 1, &mode);
sleep(2);
/* turn the crtc off just in case */
drmModeSetCrtc(fd, crtc->crtc_id, 0, 0, 0, 0, 0, 0);
drmModeFreeResources(res);
printf("Ok\n");
return 0;
}
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)
goto err;
ret = drmModeAddFB(fd, SIZE_X, SIZE_Y, 32, 32, PITCH * 4, &bo, &fb);
if (ret)
goto err_bo;
frame = drmModeGetFB(fd, fb);
if (!frame)
goto err_bo;
return frame;
err_bo:
drmBOUnreference(fd, &bo);
err:
printf("Something went wrong when creating a fb, using one of the predefined ones\n");
return drmModeGetFB(fd, res->fbs[0]);
}
int findConnectedOutputs(int fd, drmModeResPtr res, drmModeOutputPtr *out)
{
int count = 0;
int i;
drmModeOutputPtr output;
for (i = 0; i < res->count_outputs; i++) {
output = drmModeGetOutput(fd, res->outputs[i]);
if (!output || output->connection != DRM_MODE_CONNECTED)
continue;
out[count++] = output;
}
return count;
}
drmModeCrtcPtr findFreeCrtc(int fd, drmModeResPtr res)
{
return drmModeGetCrtc(fd, res->crtcs[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);
}
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