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Add screen rotation support (tested on amd/intel)

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screen rotation in wayland is best effort,
wayland doesn't give the necessary information to make it robust.
This commit is contained in:
dec05eba
2024-02-10 02:47:01 +01:00
parent ac73d9cb13
commit b8843395ac
10 changed files with 330 additions and 56 deletions
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64
src/capture/kms_cuda.c
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@@ -50,6 +50,8 @@ typedef struct {
unsigned int target_texture;
gsr_color_conversion color_conversion;
gsr_monitor_rotation monitor_rotation;
} gsr_capture_kms_cuda;
static int max_int(int a, int b) {
@@ -162,8 +164,16 @@ static int gsr_capture_kms_cuda_start(gsr_capture *cap, AVCodecContext *video_co
return -1;
}
monitor.name = cap_kms->params.display_to_capture;
cap_kms->monitor_rotation = drm_monitor_get_display_server_rotation(cap_kms->params.egl, &monitor);
cap_kms->capture_pos = monitor.pos;
cap_kms->capture_size = monitor.size;
if(cap_kms->monitor_rotation == GSR_MONITOR_ROT_90 || cap_kms->monitor_rotation == GSR_MONITOR_ROT_270) {
cap_kms->capture_size.x = monitor.size.y;
cap_kms->capture_size.y = monitor.size.x;
} else {
cap_kms->capture_size = monitor.size;
}
video_codec_context->width = max_int(2, cap_kms->capture_size.x & ~1);
video_codec_context->height = max_int(2, cap_kms->capture_size.y & ~1);
@@ -316,6 +326,16 @@ static bool gsr_capture_kms_cuda_should_stop(gsr_capture *cap, bool *err) {
return false;
}
static float monitor_rotation_to_radians(gsr_monitor_rotation rot) {
switch(rot) {
case GSR_MONITOR_ROT_0: return 0.0f;
case GSR_MONITOR_ROT_90: return M_PI_2;
case GSR_MONITOR_ROT_180: return M_PI;
case GSR_MONITOR_ROT_270: return M_PI + M_PI_2;
}
return 0.0f;
}
/* Prefer non combined planes */
static gsr_kms_response_fd* find_drm_by_connector_id(gsr_kms_response *kms_response, uint32_t connector_id) {
int index_combined = -1;
@@ -381,6 +401,13 @@ static gsr_kms_response_fd* find_cursor_drm(gsr_kms_response *kms_response) {
return NULL;
}
static vec2i swap_vec2i(vec2i value) {
int tmp = value.x;
value.x = value.y;
value.y = tmp;
return value;
}
static int gsr_capture_kms_cuda_capture(gsr_capture *cap, AVFrame *frame) {
(void)frame;
gsr_capture_kms_cuda *cap_kms = cap->priv;
@@ -457,12 +484,40 @@ static int gsr_capture_kms_cuda_capture(gsr_capture *cap, AVFrame *frame) {
if(!capture_is_combined_plane)
capture_pos = (vec2i){drm_fd->x, drm_fd->y};
const float texture_rotation = monitor_rotation_to_radians(cap_kms->monitor_rotation);
gsr_color_conversion_draw(&cap_kms->color_conversion, cap_kms->input_texture,
(vec2i){0, 0}, cap_kms->capture_size,
capture_pos, cap_kms->capture_size,
0.0f, false);
texture_rotation, false);
if(cursor_drm_fd) {
const vec2i cursor_size = {cursor_drm_fd->width, cursor_drm_fd->height};
vec2i cursor_pos = {cursor_drm_fd->x, cursor_drm_fd->y};
switch(cap_kms->monitor_rotation) {
case GSR_MONITOR_ROT_0:
break;
case GSR_MONITOR_ROT_90:
cursor_pos = swap_vec2i(cursor_pos);
cursor_pos.x = cap_kms->capture_size.x - cursor_pos.x;
// TODO: Remove this horrible hack
cursor_pos.x -= cursor_size.x;
break;
case GSR_MONITOR_ROT_180:
cursor_pos.x = cap_kms->capture_size.x - cursor_pos.x;
cursor_pos.y = cap_kms->capture_size.y - cursor_pos.y;
// TODO: Remove this horrible hack
cursor_pos.x -= cursor_size.x;
cursor_pos.y -= cursor_size.y;
break;
case GSR_MONITOR_ROT_270:
cursor_pos = swap_vec2i(cursor_pos);
cursor_pos.y = cap_kms->capture_size.y - cursor_pos.y;
// TODO: Remove this horrible hack
cursor_pos.y -= cursor_size.y;
break;
}
const intptr_t img_attr_cursor[] = {
EGL_LINUX_DRM_FOURCC_EXT, cursor_drm_fd->pixel_format,
EGL_WIDTH, cursor_drm_fd->width,
@@ -481,11 +536,10 @@ static int gsr_capture_kms_cuda_capture(gsr_capture *cap, AVFrame *frame) {
cap_kms->params.egl->eglDestroyImage(cap_kms->params.egl->egl_display, cursor_image);
cap_kms->params.egl->glBindTexture(GL_TEXTURE_EXTERNAL_OES, 0);
vec2i cursor_size = {cursor_drm_fd->width, cursor_drm_fd->height};
gsr_color_conversion_draw(&cap_kms->color_conversion, cap_kms->cursor_texture,
(vec2i){cursor_drm_fd->x, cursor_drm_fd->y}, cursor_size,
cursor_pos, cursor_size,
(vec2i){0, 0}, cursor_size,
0.0f, true);
texture_rotation, true);
}
cap_kms->params.egl->eglSwapBuffers(cap_kms->params.egl->egl_display, cap_kms->params.egl->egl_surface);