aboutsummaryrefslogtreecommitdiff
path: root/backend/drm
diff options
context:
space:
mode:
authorScott Anderson <ascent12@hotmail.com>2017-08-07 21:07:42 +1200
committerScott Anderson <ascent12@hotmail.com>2017-08-07 21:07:42 +1200
commitd09ca20a4dccd7696423fc9f17acc88b7b3a7986 (patch)
treed7ad82aa3e5b3dbdfa494a7b7751b4dbd7c7ad9c /backend/drm
parentdbe66d19639c637641482d7f37ae11f986a5feb7 (diff)
Use gbm_bo_map for cursor
Diffstat (limited to 'backend/drm')
-rw-r--r--backend/drm/drm.c43
1 files changed, 38 insertions, 5 deletions
diff --git a/backend/drm/drm.c b/backend/drm/drm.c
index edcff083..700eb554 100644
--- a/backend/drm/drm.c
+++ b/backend/drm/drm.c
@@ -10,7 +10,8 @@
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <gbm.h>
-#include <GLES3/gl3.h>
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
#include <wayland-server.h>
#include <wlr/backend/interface.h>
#include <wlr/interfaces/wlr_output.h>
@@ -229,6 +230,9 @@ static void wlr_drm_plane_renderer_free(struct wlr_drm_renderer *renderer,
if (plane->wlr_rend) {
wlr_renderer_destroy(plane->wlr_rend);
}
+ if (plane->cursor_bo) {
+ gbm_bo_destroy(plane->cursor_bo);
+ }
plane->width = 0;
plane->height = 0;
@@ -238,6 +242,7 @@ static void wlr_drm_plane_renderer_free(struct wlr_drm_renderer *renderer,
plane->back = NULL;
plane->wlr_rend = NULL;
plane->wlr_surf = NULL;
+ plane->cursor_bo = NULL;
}
static void free_fb(struct gbm_bo *bo, void *data) {
@@ -543,7 +548,7 @@ bool wlr_drm_crtc_set_cursor(struct wlr_backend_state *drm, struct wlr_drm_crtc
struct wlr_drm_plane *plane = crtc->cursor;
- uint32_t bo_handle = gbm_bo_get_handle(plane->back).u32;
+ uint32_t bo_handle = gbm_bo_get_handle(plane->cursor_bo).u32;
if (drmModeSetCursor(drm->fd, crtc->id, bo_handle, plane->width, plane->height)) {
wlr_log_errno(L_ERROR, "Failed to set hardware cursor");
return false;
@@ -586,13 +591,22 @@ static bool wlr_drm_output_set_cursor(struct wlr_output_state *output,
return false;
}
- if (!wlr_drm_plane_renderer_init(renderer, plane, w, h, GBM_BO_USE_CURSOR)) {
+ if (!wlr_drm_plane_renderer_init(renderer, plane, w, h, 0)) {
wlr_log(L_ERROR, "Cannot allocate cursor resources");
return false;
}
+ plane->cursor_bo = gbm_bo_create(renderer->gbm, w, h, GBM_FORMAT_ARGB8888,
+ GBM_BO_USE_CURSOR | GBM_BO_USE_WRITE);
+ if (!plane->cursor_bo) {
+ wlr_log_errno(L_ERROR, "Failed to create cursor bo");
+ return false;
+ }
+
+ // OpenGL will read the pixels out upside down,
+ // so we need to flip the image vertically
wlr_matrix_surface(plane->matrix, plane->width, plane->height,
- output->base->transform);
+ output->base->transform ^ WL_OUTPUT_TRANSFORM_FLIPPED_180);
plane->wlr_rend = wlr_gles2_renderer_init();
if (!plane->wlr_rend) {
@@ -605,21 +619,40 @@ static bool wlr_drm_output_set_cursor(struct wlr_output_state *output,
}
}
+ struct gbm_bo *bo = plane->cursor_bo;
+ uint32_t bo_width = gbm_bo_get_width(bo);
+ uint32_t bo_height = gbm_bo_get_height(bo);
+ uint32_t bo_stride;
+ void *bo_data;
+
+ if (!gbm_bo_map(bo, 0, 0, bo_width, bo_height,
+ GBM_BO_TRANSFER_WRITE, &bo_stride, &bo_data)) {
+ wlr_log_errno(L_ERROR, "Unable to map buffer");
+ return false;
+ }
+
wlr_drm_plane_make_current(renderer, plane);
wlr_surface_attach_pixels(plane->wlr_surf, WL_SHM_FORMAT_ARGB8888,
stride, width, height, buf);
glViewport(0, 0, plane->width, plane->height);
- glClearColor(0, 0, 0, 0);
+ glClearColor(0.0, 0.0, 0.0, 0.0);
glClear(GL_COLOR_BUFFER_BIT);
float matrix[16];
wlr_surface_get_matrix(plane->wlr_surf, &matrix, &plane->matrix, 0, 0);
wlr_render_with_matrix(plane->wlr_rend, plane->wlr_surf, &matrix);
+ glFinish();
+ glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, bo_stride);
+ glReadPixels(0, 0, plane->width, plane->height, GL_BGRA_EXT, GL_UNSIGNED_BYTE, bo_data);
+ glPixelStorei(GL_UNPACK_ROW_LENGTH_EXT, 0);
+
wlr_drm_plane_swap_buffers(renderer, plane);
+ gbm_bo_unmap(bo, bo_data);
+
return wlr_drm_crtc_set_cursor(drm, crtc);
}