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author | Tao Bao <tbao@google.com> | 2017-02-13 19:25:05 +0100 |
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committer | Gerrit Code Review <noreply-gerritcodereview@google.com> | 2017-02-13 19:25:06 +0100 |
commit | 0d14cc279ccc2ac665d4174d6a2c86645435e7a2 (patch) | |
tree | eb142b80610f473197e284f372784c25f04a4f3b /minui/graphics_drm.cpp | |
parent | Merge "minui: Save errno before calling close()." (diff) | |
parent | minui: Move graphics_{adf,drm,fbdev} into classes. (diff) | |
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Diffstat (limited to 'minui/graphics_drm.cpp')
-rw-r--r-- | minui/graphics_drm.cpp | 124 |
1 files changed, 49 insertions, 75 deletions
diff --git a/minui/graphics_drm.cpp b/minui/graphics_drm.cpp index 2eeff5800..e7d4b38ef 100644 --- a/minui/graphics_drm.cpp +++ b/minui/graphics_drm.cpp @@ -14,6 +14,8 @@ * limitations under the License. */ +#include "graphics_drm.h" + #include <fcntl.h> #include <stdio.h> #include <stdlib.h> @@ -26,25 +28,13 @@ #include <xf86drmMode.h> #include "minui/minui.h" -#include "graphics.h" #define ARRAY_SIZE(A) (sizeof(A)/sizeof(*(A))) -struct drm_surface { - GRSurface base; - uint32_t fb_id; - uint32_t handle; -}; - -static drm_surface *drm_surfaces[2]; -static int current_buffer; - -static drmModeCrtc *main_monitor_crtc; -static drmModeConnector *main_monitor_connector; +MinuiBackendDrm::MinuiBackendDrm() + : GRSurfaceDrms(), main_monitor_crtc(nullptr), main_monitor_connector(nullptr), drm_fd(-1) {} -static int drm_fd = -1; - -static void drm_disable_crtc(int drm_fd, drmModeCrtc *crtc) { +void MinuiBackendDrm::DrmDisableCrtc(int drm_fd, drmModeCrtc* crtc) { if (crtc) { drmModeSetCrtc(drm_fd, crtc->crtc_id, 0, // fb_id @@ -55,7 +45,7 @@ static void drm_disable_crtc(int drm_fd, drmModeCrtc *crtc) { } } -static void drm_enable_crtc(int drm_fd, drmModeCrtc* crtc, struct drm_surface* surface) { +void MinuiBackendDrm::DrmEnableCrtc(int drm_fd, drmModeCrtc* crtc, GRSurfaceDrm* surface) { int32_t ret = drmModeSetCrtc(drm_fd, crtc->crtc_id, surface->fb_id, 0, 0, // x,y &main_monitor_connector->connector_id, 1, // connector_count @@ -66,19 +56,19 @@ static void drm_enable_crtc(int drm_fd, drmModeCrtc* crtc, struct drm_surface* s } } -static void drm_blank(minui_backend* backend __unused, bool blank) { +void MinuiBackendDrm::Blank(bool blank) { if (blank) { - drm_disable_crtc(drm_fd, main_monitor_crtc); + DrmDisableCrtc(drm_fd, main_monitor_crtc); } else { - drm_enable_crtc(drm_fd, main_monitor_crtc, drm_surfaces[current_buffer]); + DrmEnableCrtc(drm_fd, main_monitor_crtc, GRSurfaceDrms[current_buffer]); } } -static void drm_destroy_surface(struct drm_surface *surface) { +void MinuiBackendDrm::DrmDestroySurface(GRSurfaceDrm* surface) { if (!surface) return; - if (surface->base.data) { - munmap(surface->base.data, surface->base.row_bytes * surface->base.height); + if (surface->data) { + munmap(surface->data, surface->row_bytes * surface->height); } if (surface->fb_id) { @@ -98,7 +88,7 @@ static void drm_destroy_surface(struct drm_surface *surface) { } } - free(surface); + delete surface; } static int drm_format_to_bpp(uint32_t format) { @@ -118,12 +108,9 @@ static int drm_format_to_bpp(uint32_t format) { } } -static drm_surface *drm_create_surface(int width, int height) { - drm_surface* surface = static_cast<drm_surface*>(calloc(1, sizeof(*surface))); - if (!surface) { - printf("Can't allocate memory\n"); - return nullptr; - } +GRSurfaceDrm* MinuiBackendDrm::DrmCreateSurface(int width, int height) { + GRSurfaceDrm* surface = new GRSurfaceDrm; + *surface = {}; uint32_t format; #if defined(RECOVERY_ABGR) @@ -145,7 +132,7 @@ static drm_surface *drm_create_surface(int width, int height) { int ret = drmIoctl(drm_fd, DRM_IOCTL_MODE_CREATE_DUMB, &create_dumb); if (ret) { printf("DRM_IOCTL_MODE_CREATE_DUMB failed ret=%d\n", ret); - drm_destroy_surface(surface); + DrmDestroySurface(surface); return nullptr; } surface->handle = create_dumb.handle; @@ -160,7 +147,7 @@ static drm_surface *drm_create_surface(int width, int height) { drmModeAddFB2(drm_fd, width, height, format, handles, pitches, offsets, &(surface->fb_id), 0); if (ret) { printf("drmModeAddFB2 failed ret=%d\n", ret); - drm_destroy_surface(surface); + DrmDestroySurface(surface); return nullptr; } @@ -169,20 +156,20 @@ static drm_surface *drm_create_surface(int width, int height) { ret = drmIoctl(drm_fd, DRM_IOCTL_MODE_MAP_DUMB, &map_dumb); if (ret) { printf("DRM_IOCTL_MODE_MAP_DUMB failed ret=%d\n", ret); - drm_destroy_surface(surface); + DrmDestroySurface(surface); return nullptr; } - surface->base.height = height; - surface->base.width = width; - surface->base.row_bytes = create_dumb.pitch; - surface->base.pixel_bytes = create_dumb.bpp / 8; - surface->base.data = - static_cast<unsigned char*>(mmap(nullptr, surface->base.height * surface->base.row_bytes, - PROT_READ | PROT_WRITE, MAP_SHARED, drm_fd, map_dumb.offset)); - if (surface->base.data == MAP_FAILED) { + surface->height = height; + surface->width = width; + surface->row_bytes = create_dumb.pitch; + surface->pixel_bytes = create_dumb.bpp / 8; + surface->data = static_cast<unsigned char*>(mmap(nullptr, surface->height * surface->row_bytes, + PROT_READ | PROT_WRITE, MAP_SHARED, drm_fd, + map_dumb.offset)); + if (surface->data == MAP_FAILED) { perror("mmap() failed"); - drm_destroy_surface(surface); + DrmDestroySurface(surface); return nullptr; } @@ -256,7 +243,8 @@ static drmModeConnector* find_first_connected_connector(int fd, drmModeRes* reso return nullptr; } -static drmModeConnector* find_main_monitor(int fd, drmModeRes* resources, uint32_t* mode_index) { +drmModeConnector* MinuiBackendDrm::FindMainMonitor(int fd, drmModeRes* resources, + uint32_t* mode_index) { /* Look for LVDS/eDP/DSI connectors. Those are the main screens. */ static constexpr unsigned kConnectorPriority[] = { DRM_MODE_CONNECTOR_LVDS, @@ -290,18 +278,18 @@ static drmModeConnector* find_main_monitor(int fd, drmModeRes* resources, uint32 return main_monitor_connector; } -static void disable_non_main_crtcs(int fd, drmModeRes* resources, drmModeCrtc* main_crtc) { +void MinuiBackendDrm::DisableNonMainCrtcs(int fd, drmModeRes* resources, drmModeCrtc* main_crtc) { for (int i = 0; i < resources->count_connectors; i++) { drmModeConnector* connector = drmModeGetConnector(fd, resources->connectors[i]); drmModeCrtc* crtc = find_crtc_for_connector(fd, resources, connector); if (crtc->crtc_id != main_crtc->crtc_id) { - drm_disable_crtc(fd, crtc); + DrmDisableCrtc(fd, crtc); } drmModeFreeCrtc(crtc); } } -static GRSurface* drm_init(minui_backend* backend __unused) { +GRSurface* MinuiBackendDrm::Init() { drmModeRes* res = nullptr; /* Consider DRM devices in order. */ @@ -344,7 +332,7 @@ static GRSurface* drm_init(minui_backend* backend __unused) { } uint32_t selected_mode; - main_monitor_connector = find_main_monitor(drm_fd, res, &selected_mode); + main_monitor_connector = FindMainMonitor(drm_fd, res, &selected_mode); if (!main_monitor_connector) { printf("main_monitor_connector not found\n"); @@ -362,7 +350,7 @@ static GRSurface* drm_init(minui_backend* backend __unused) { return nullptr; } - disable_non_main_crtcs(drm_fd, res, main_monitor_crtc); + DisableNonMainCrtcs(drm_fd, res, main_monitor_crtc); main_monitor_crtc->mode = main_monitor_connector->modes[selected_mode]; @@ -371,51 +359,37 @@ static GRSurface* drm_init(minui_backend* backend __unused) { drmModeFreeResources(res); - drm_surfaces[0] = drm_create_surface(width, height); - drm_surfaces[1] = drm_create_surface(width, height); - if (!drm_surfaces[0] || !drm_surfaces[1]) { - drm_destroy_surface(drm_surfaces[0]); - drm_destroy_surface(drm_surfaces[1]); - drmModeFreeResources(res); - close(drm_fd); + GRSurfaceDrms[0] = DrmCreateSurface(width, height); + GRSurfaceDrms[1] = DrmCreateSurface(width, height); + if (!GRSurfaceDrms[0] || !GRSurfaceDrms[1]) { + // GRSurfaceDrms and drm_fd should be freed in d'tor. return nullptr; } current_buffer = 0; - drm_enable_crtc(drm_fd, main_monitor_crtc, drm_surfaces[1]); + DrmEnableCrtc(drm_fd, main_monitor_crtc, GRSurfaceDrms[1]); - return &(drm_surfaces[0]->base); + return GRSurfaceDrms[0]; } -static GRSurface* drm_flip(minui_backend* backend __unused) { - int ret = drmModePageFlip(drm_fd, main_monitor_crtc->crtc_id, drm_surfaces[current_buffer]->fb_id, - 0, nullptr); +GRSurface* MinuiBackendDrm::Flip() { + int ret = drmModePageFlip(drm_fd, main_monitor_crtc->crtc_id, + GRSurfaceDrms[current_buffer]->fb_id, 0, nullptr); if (ret < 0) { printf("drmModePageFlip failed ret=%d\n", ret); return nullptr; } current_buffer = 1 - current_buffer; - return &(drm_surfaces[current_buffer]->base); + return GRSurfaceDrms[current_buffer]; } -static void drm_exit(minui_backend* backend __unused) { - drm_disable_crtc(drm_fd, main_monitor_crtc); - drm_destroy_surface(drm_surfaces[0]); - drm_destroy_surface(drm_surfaces[1]); +MinuiBackendDrm::~MinuiBackendDrm() { + DrmDisableCrtc(drm_fd, main_monitor_crtc); + DrmDestroySurface(GRSurfaceDrms[0]); + DrmDestroySurface(GRSurfaceDrms[1]); drmModeFreeCrtc(main_monitor_crtc); drmModeFreeConnector(main_monitor_connector); close(drm_fd); drm_fd = -1; } - -static minui_backend drm_backend = { - .init = drm_init, - .flip = drm_flip, - .blank = drm_blank, - .exit = drm_exit, -}; - -minui_backend* open_drm() { - return &drm_backend; -} |