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Hardware cursor improvements.

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This commit is contained in:
Scott Anderson 2017-06-26 19:32:36 +12:00
parent 0cd94f0cf0
commit 82322d81a7
1 changed files with 39 additions and 33 deletions
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72
backend/drm/drm.c
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@ -296,54 +296,60 @@ static void wlr_drm_output_transform(struct wlr_output_state *output,
output->wlr_output->transform = transform;
}
static void wlr_drm_cursor_bo_update(struct wlr_output_state *output,
uint32_t width, uint32_t height) {
if (output->cursor_width == width && output->cursor_height == height) {
return;
}
wlr_log(L_DEBUG, "Allocating new cursor bos");
struct wlr_backend_state *state =
wl_container_of(output->renderer, state, renderer);
for (size_t i = 0; i < 2; ++i) {
output->cursor_bo[i] = gbm_bo_create(state->renderer.gbm,
width, height, GBM_FORMAT_ARGB8888,
GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE);
if (!output->cursor_bo[i]) {
wlr_log(L_ERROR, "Failed to create cursor bo");
return;
}
if (!get_fb_for_bo(state->fd, output->cursor_bo[i])) {
wlr_log(L_ERROR, "Failed to create cursor fb");
return;
}
}
}
static bool wlr_drm_output_set_cursor(struct wlr_output_state *output,
const uint8_t *buf, int32_t stride, uint32_t width, uint32_t height) {
struct wlr_backend_state *state =
wl_container_of(output->renderer, state, renderer);
struct wlr_backend_state *state = wl_container_of(output->renderer, state, renderer);
if (!buf) {
drmModeSetCursor(state->fd, output->crtc, 0, 0, 0);
return true;
}
wlr_drm_cursor_bo_update(output, width, height);
uint64_t bo_width, bo_height;
int ret;
ret = drmGetCap(state->fd, DRM_CAP_CURSOR_WIDTH, &bo_width);
bo_width = ret ? 64 : bo_width;
ret = drmGetCap(state->fd, DRM_CAP_CURSOR_HEIGHT, &bo_height);
bo_height = ret ? 64 : bo_height;
if (width > bo_width || height > bo_width) {
wlr_log(L_INFO, "Cursor too large");
return false;
}
for (int i = 0; i < 2; ++i) {
if (output->cursor_bo[i]) {
continue;
}
output->cursor_bo[i] = gbm_bo_create(state->renderer.gbm, bo_width, bo_height,
GBM_FORMAT_RGBA8888, GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE);
if (!output->cursor_bo[i]) {
wlr_log(L_ERROR, "Failed to create cursor bo");
return false;
}
}
struct gbm_bo *bo;
output->current_cursor ^= 1;
bo = output->cursor_bo[output->current_cursor];
uint32_t _buf[width * height];
memset(_buf, 0, sizeof(_buf));
uint32_t bo_stride = gbm_bo_get_stride(bo);
uint8_t tmp[bo_stride * height];
memset(tmp, 0, sizeof(tmp));
for (size_t i = 0; i < height; ++i) {
memcpy(_buf + i * width,
buf + i * stride,
width * 4);
memcpy(tmp + i * bo_stride, buf + i * stride * 4, width * 4);
}
if (gbm_bo_write(bo, _buf, sizeof(_buf)) < 0) {
if (gbm_bo_write(bo, tmp, sizeof(tmp)) < 0) {
wlr_log(L_ERROR, "Failed to write cursor to bo");
return false;
}
if (drmModeSetCursor(state->fd, output->crtc, gbm_bo_get_handle(bo).u32, width, height)) {
uint32_t bo_handle = gbm_bo_get_handle(bo).u32;
if (drmModeSetCursor(state->fd, output->crtc, bo_handle, bo_width, bo_height)) {
wlr_log_errno(L_INFO, "Failed to set hardware cursor");
return false;
}