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-rw-r--r--minui/graphics_overlay.cpp692
1 files changed, 692 insertions, 0 deletions
diff --git a/minui/graphics_overlay.cpp b/minui/graphics_overlay.cpp
new file mode 100644
index 000000000..2ba452a0e
--- /dev/null
+++ b/minui/graphics_overlay.cpp
@@ -0,0 +1,692 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <fcntl.h>
+#include <stdio.h>
+
+#include <sys/cdefs.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+
+#include <linux/fb.h>
+#include <linux/kd.h>
+
+#ifdef MSM_BSP
+#include <linux/msm_mdp.h>
+#include <linux/msm_ion.h>
+#endif
+
+#include "minui.h"
+#include "graphics.h"
+
+#define MDP_V4_0 400
+#define MAX_DISPLAY_DIM 2048
+
+static GRSurface* overlay_init(minui_backend*);
+static GRSurface* overlay_flip(minui_backend*);
+static void overlay_blank(minui_backend*, bool);
+static void overlay_exit(minui_backend*);
+
+static GRSurface gr_framebuffer[2];
+static bool double_buffered;
+static GRSurface* gr_draw = NULL;
+static int displayed_buffer;
+
+static fb_var_screeninfo vi;
+static int fb_fd = -1;
+static bool isMDP5 = false;
+static int leftSplit = 0;
+static int rightSplit = 0;
+#define ALIGN(x, align) (((x) + ((align)-1)) & ~((align)-1))
+
+static size_t frame_size = 0;
+
+#ifdef MSM_BSP
+typedef struct {
+ unsigned char *mem_buf;
+ int size;
+ int ion_fd;
+ int mem_fd;
+ struct ion_handle_data handle_data;
+} memInfo;
+
+//Left and right overlay id
+static int overlayL_id = MSMFB_NEW_REQUEST;
+static int overlayR_id = MSMFB_NEW_REQUEST;
+
+static memInfo mem_info;
+#
+
+static int map_mdp_pixel_format()
+{
+ int format = MDP_RGB_565;
+#if defined(RECOVERY_BGRA)
+ format = MDP_BGRA_8888;
+#elif defined(RECOVERY_RGBX)
+ format = MDP_RGBA_8888;
+#endif
+ return format;
+}
+#endif // MSM_BSP
+
+static minui_backend my_backend = {
+ .init = overlay_init,
+ .flip = overlay_flip,
+ .blank = overlay_blank,
+ .exit = overlay_exit,
+};
+
+bool target_has_overlay(char *version)
+{
+ int ret;
+ int mdp_version;
+ bool overlay_supported = false;
+
+ if (strlen(version) >= 8) {
+ if(!strncmp(version, "msmfb", strlen("msmfb"))) {
+ char str_ver[4];
+ memcpy(str_ver, version + strlen("msmfb"), 3);
+ str_ver[3] = '\0';
+ mdp_version = atoi(str_ver);
+ if (mdp_version >= MDP_V4_0) {
+ overlay_supported = true;
+ }
+ } else if (!strncmp(version, "mdssfb", strlen("mdssfb"))) {
+ overlay_supported = true;
+ isMDP5 = true;
+ }
+ }
+
+ return overlay_supported;
+}
+
+minui_backend* open_overlay() {
+ fb_fix_screeninfo fi;
+ int fd;
+
+ fd = open("/dev/graphics/fb0", O_RDWR);
+ if (fd < 0) {
+ perror("open_overlay cannot open fb0");
+ return NULL;
+ }
+
+ if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
+ perror("failed to get fb0 info");
+ close(fd);
+ return NULL;
+ }
+
+ if (target_has_overlay(fi.id)) {
+#ifdef MSM_BSP
+ close(fd);
+ return &my_backend;
+#else
+ printf("Overlay graphics may work (%s), but not enabled. Use TW_TARGET_USES_QCOM_BSP := true to enable.\n", fi.id);
+#endif
+ }
+ close(fd);
+ return NULL;
+}
+
+static void overlay_blank(minui_backend* backend __unused, bool blank)
+{
+#if defined(TW_NO_SCREEN_BLANK) && defined(TW_BRIGHTNESS_PATH) && defined(TW_MAX_BRIGHTNESS)
+ int fd;
+ char brightness[4];
+ snprintf(brightness, 4, "%03d", TW_MAX_BRIGHTNESS/2);
+
+ fd = open(TW_BRIGHTNESS_PATH, O_RDWR);
+ if (fd < 0) {
+ perror("cannot open LCD backlight");
+ return;
+ }
+ write(fd, blank ? "000" : brightness, 3);
+ close(fd);
+#else
+ int ret;
+
+ ret = ioctl(fb_fd, FBIOBLANK, blank ? FB_BLANK_POWERDOWN : FB_BLANK_UNBLANK);
+ if (ret < 0)
+ perror("ioctl(): blank");
+#endif
+}
+
+static void set_displayed_framebuffer(unsigned n)
+{
+ if (n > 1 || !double_buffered) return;
+
+ vi.yres_virtual = gr_framebuffer[0].height * 2;
+ vi.yoffset = n * gr_framebuffer[0].height;
+ vi.bits_per_pixel = gr_framebuffer[0].pixel_bytes * 8;
+ if (ioctl(fb_fd, FBIOPUT_VSCREENINFO, &vi) < 0) {
+ perror("active fb swap failed");
+ }
+ displayed_buffer = n;
+}
+
+#ifdef MSM_BSP
+void setDisplaySplit(void) {
+ char split[64] = {0};
+ if (!isMDP5)
+ return;
+ FILE* fp = fopen("/sys/class/graphics/fb0/msm_fb_split", "r");
+ if (fp) {
+ //Format "left right" space as delimiter
+ if(fread(split, sizeof(char), 64, fp)) {
+ leftSplit = atoi(split);
+ printf("Left Split=%d\n",leftSplit);
+ char *rght = strpbrk(split, " ");
+ if (rght)
+ rightSplit = atoi(rght + 1);
+ printf("Right Split=%d\n", rightSplit);
+ }
+ } else {
+ printf("Failed to open mdss_fb_split node\n");
+ }
+ if (fp)
+ fclose(fp);
+}
+
+int getLeftSplit(void) {
+ //Default even split for all displays with high res
+ int lSplit = vi.xres / 2;
+
+ //Override if split published by driver
+ if (leftSplit)
+ lSplit = leftSplit;
+
+ return lSplit;
+}
+
+int getRightSplit(void) {
+ return rightSplit;
+}
+
+int free_ion_mem(void) {
+ int ret = 0;
+
+ if (mem_info.mem_buf)
+ munmap(mem_info.mem_buf, mem_info.size);
+
+ if (mem_info.ion_fd >= 0) {
+ ret = ioctl(mem_info.ion_fd, ION_IOC_FREE, &mem_info.handle_data);
+ if (ret < 0)
+ perror("free_mem failed ");
+ }
+
+ if (mem_info.mem_fd >= 0)
+ close(mem_info.mem_fd);
+ if (mem_info.ion_fd >= 0)
+ close(mem_info.ion_fd);
+
+ memset(&mem_info, 0, sizeof(mem_info));
+ mem_info.mem_fd = -1;
+ mem_info.ion_fd = -1;
+ return 0;
+}
+
+int alloc_ion_mem(unsigned int size)
+{
+ int result;
+ struct ion_fd_data fd_data;
+ struct ion_allocation_data ionAllocData;
+
+ mem_info.ion_fd = open("/dev/ion", O_RDWR|O_DSYNC);
+ if (mem_info.ion_fd < 0) {
+ perror("ERROR: Can't open ion ");
+ return -errno;
+ }
+
+ ionAllocData.flags = 0;
+ ionAllocData.len = size;
+ ionAllocData.align = sysconf(_SC_PAGESIZE);
+#ifdef NEW_ION_HEAP
+ ionAllocData.heap_id_mask =
+#else
+ ionAllocData.heap_mask =
+#endif
+ ION_HEAP(ION_IOMMU_HEAP_ID) |
+ ION_HEAP(ION_SYSTEM_CONTIG_HEAP_ID);
+
+ result = ioctl(mem_info.ion_fd, ION_IOC_ALLOC, &ionAllocData);
+ if(result){
+ perror("ION_IOC_ALLOC Failed ");
+ close(mem_info.ion_fd);
+ return result;
+ }
+
+ fd_data.handle = ionAllocData.handle;
+ mem_info.handle_data.handle = ionAllocData.handle;
+ result = ioctl(mem_info.ion_fd, ION_IOC_MAP, &fd_data);
+ if (result) {
+ perror("ION_IOC_MAP Failed ");
+ free_ion_mem();
+ return result;
+ }
+ mem_info.mem_buf = (unsigned char *)mmap(NULL, size, PROT_READ |
+ PROT_WRITE, MAP_SHARED, fd_data.fd, 0);
+ mem_info.mem_fd = fd_data.fd;
+
+ if (!mem_info.mem_buf) {
+ perror("ERROR: mem_buf MAP_FAILED ");
+ free_ion_mem();
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+bool isDisplaySplit(void) {
+ if (vi.xres > MAX_DISPLAY_DIM)
+ return true;
+ //check if right split is set by driver
+ if (getRightSplit())
+ return true;
+
+ return false;
+}
+
+int allocate_overlay(int fd, GRSurface gr_fb[])
+{
+ int ret = 0;
+
+ if (!isDisplaySplit()) {
+ // Check if overlay is already allocated
+ if (MSMFB_NEW_REQUEST == overlayL_id) {
+ struct mdp_overlay overlayL;
+
+ memset(&overlayL, 0 , sizeof (struct mdp_overlay));
+
+ /* Fill Overlay Data */
+ overlayL.src.width = ALIGN(gr_fb[0].width, 32);
+ overlayL.src.height = gr_fb[0].height;
+ overlayL.src.format = map_mdp_pixel_format();
+ overlayL.src_rect.w = gr_fb[0].width;
+ overlayL.src_rect.h = gr_fb[0].height;
+ overlayL.dst_rect.w = gr_fb[0].width;
+ overlayL.dst_rect.h = gr_fb[0].height;
+ overlayL.alpha = 0xFF;
+ overlayL.transp_mask = MDP_TRANSP_NOP;
+ overlayL.id = MSMFB_NEW_REQUEST;
+ ret = ioctl(fd, MSMFB_OVERLAY_SET, &overlayL);
+ if (ret < 0) {
+ perror("Overlay Set Failed");
+ return ret;
+ }
+ overlayL_id = overlayL.id;
+ }
+ } else {
+ float xres = vi.xres;
+ int lSplit = getLeftSplit();
+ float lSplitRatio = lSplit / xres;
+ float lCropWidth = gr_fb[0].width * lSplitRatio;
+ int lWidth = lSplit;
+ int rWidth = gr_fb[0].width - lSplit;
+ int height = gr_fb[0].height;
+
+ if (MSMFB_NEW_REQUEST == overlayL_id) {
+
+ struct mdp_overlay overlayL;
+
+ memset(&overlayL, 0 , sizeof (struct mdp_overlay));
+
+ /* Fill OverlayL Data */
+ overlayL.src.width = ALIGN(gr_fb[0].width, 32);
+ overlayL.src.height = gr_fb[0].height;
+ overlayL.src.format = map_mdp_pixel_format();
+ overlayL.src_rect.x = 0;
+ overlayL.src_rect.y = 0;
+ overlayL.src_rect.w = lCropWidth;
+ overlayL.src_rect.h = gr_fb[0].height;
+ overlayL.dst_rect.x = 0;
+ overlayL.dst_rect.y = 0;
+ overlayL.dst_rect.w = lWidth;
+ overlayL.dst_rect.h = height;
+ overlayL.alpha = 0xFF;
+ overlayL.transp_mask = MDP_TRANSP_NOP;
+ overlayL.id = MSMFB_NEW_REQUEST;
+ ret = ioctl(fd, MSMFB_OVERLAY_SET, &overlayL);
+ if (ret < 0) {
+ perror("OverlayL Set Failed");
+ return ret;
+ }
+ overlayL_id = overlayL.id;
+ }
+ if (MSMFB_NEW_REQUEST == overlayR_id) {
+ struct mdp_overlay overlayR;
+
+ memset(&overlayR, 0 , sizeof (struct mdp_overlay));
+
+ /* Fill OverlayR Data */
+ overlayR.src.width = ALIGN(gr_fb[0].width, 32);
+ overlayR.src.height = gr_fb[0].height;
+ overlayR.src.format = map_mdp_pixel_format();
+ overlayR.src_rect.x = lCropWidth;
+ overlayR.src_rect.y = 0;
+ overlayR.src_rect.w = gr_fb[0].width - lCropWidth;
+ overlayR.src_rect.h = gr_fb[0].height;
+ overlayR.dst_rect.x = 0;
+ overlayR.dst_rect.y = 0;
+ overlayR.dst_rect.w = rWidth;
+ overlayR.dst_rect.h = height;
+ overlayR.alpha = 0xFF;
+ overlayR.flags = MDSS_MDP_RIGHT_MIXER;
+ overlayR.transp_mask = MDP_TRANSP_NOP;
+ overlayR.id = MSMFB_NEW_REQUEST;
+ ret = ioctl(fd, MSMFB_OVERLAY_SET, &overlayR);
+ if (ret < 0) {
+ perror("OverlayR Set Failed");
+ return ret;
+ }
+ overlayR_id = overlayR.id;
+ }
+
+ }
+ return 0;
+}
+
+int overlay_display_frame(int fd, void* data, size_t size)
+{
+ int ret = 0;
+ struct msmfb_overlay_data ovdataL, ovdataR;
+ struct mdp_display_commit ext_commit;
+
+ if (!isDisplaySplit()) {
+ if (overlayL_id == MSMFB_NEW_REQUEST) {
+ perror("display_frame failed, no overlay\n");
+ return -EINVAL;
+ }
+
+ memcpy(mem_info.mem_buf, data, size);
+
+ memset(&ovdataL, 0, sizeof(struct msmfb_overlay_data));
+
+ ovdataL.id = overlayL_id;
+ ovdataL.data.flags = 0;
+ ovdataL.data.offset = 0;
+ ovdataL.data.memory_id = mem_info.mem_fd;
+ ret = ioctl(fd, MSMFB_OVERLAY_PLAY, &ovdataL);
+ if (ret < 0) {
+ perror("overlay_display_frame failed, overlay play Failed\n");
+ return ret;
+ }
+ } else {
+
+ if (overlayL_id == MSMFB_NEW_REQUEST) {
+ perror("display_frame failed, no overlayL \n");
+ return -EINVAL;
+ }
+
+ memcpy(mem_info.mem_buf, data, size);
+
+ memset(&ovdataL, 0, sizeof(struct msmfb_overlay_data));
+
+ ovdataL.id = overlayL_id;
+ ovdataL.data.flags = 0;
+ ovdataL.data.offset = 0;
+ ovdataL.data.memory_id = mem_info.mem_fd;
+ ret = ioctl(fd, MSMFB_OVERLAY_PLAY, &ovdataL);
+ if (ret < 0) {
+ perror("overlay_display_frame failed, overlayL play Failed\n");
+ return ret;
+ }
+
+ if (overlayR_id == MSMFB_NEW_REQUEST) {
+ perror("display_frame failed, no overlayR \n");
+ return -EINVAL;
+ }
+ memset(&ovdataR, 0, sizeof(struct msmfb_overlay_data));
+
+ ovdataR.id = overlayR_id;
+ ovdataR.data.flags = 0;
+ ovdataR.data.offset = 0;
+ ovdataR.data.memory_id = mem_info.mem_fd;
+ ret = ioctl(fd, MSMFB_OVERLAY_PLAY, &ovdataR);
+ if (ret < 0) {
+ perror("overlay_display_frame failed, overlayR play Failed\n");
+ return ret;
+ }
+ }
+ memset(&ext_commit, 0, sizeof(struct mdp_display_commit));
+ ext_commit.flags = MDP_DISPLAY_COMMIT_OVERLAY;
+ ext_commit.wait_for_finish = 1;
+ ret = ioctl(fd, MSMFB_DISPLAY_COMMIT, &ext_commit);
+ if (ret < 0) {
+ perror("overlay_display_frame failed, overlay commit Failed\n!");
+ }
+
+ return ret;
+}
+
+static GRSurface* overlay_flip(minui_backend* backend __unused) {
+ if (double_buffered) {
+#if defined(RECOVERY_BGRA)
+ // In case of BGRA, do some byte swapping
+ unsigned int idx;
+ unsigned char tmp;
+ unsigned char* ucfb_vaddr = (unsigned char*)gr_draw->data;
+ for (idx = 0 ; idx < (gr_draw->height * gr_draw->row_bytes);
+ idx += 4) {
+ tmp = ucfb_vaddr[idx];
+ ucfb_vaddr[idx ] = ucfb_vaddr[idx + 2];
+ ucfb_vaddr[idx + 2] = tmp;
+ }
+#endif
+ // Change gr_draw to point to the buffer currently displayed,
+ // then flip the driver so we're displaying the other buffer
+ // instead.
+ gr_draw = gr_framebuffer + displayed_buffer;
+ set_displayed_framebuffer(1-displayed_buffer);
+ overlay_display_frame(fb_fd, gr_draw->data, frame_size);
+ } else {
+ // Copy from the in-memory surface to the framebuffer.
+ overlay_display_frame(fb_fd, gr_draw->data, frame_size);
+ }
+ return gr_draw;
+}
+
+int free_overlay(int fd)
+{
+ int ret = 0;
+ struct mdp_display_commit ext_commit;
+
+ if (!isDisplaySplit()) {
+ if (overlayL_id != MSMFB_NEW_REQUEST) {
+ ret = ioctl(fd, MSMFB_OVERLAY_UNSET, &overlayL_id);
+ if (ret) {
+ perror("Overlay Unset Failed");
+ overlayL_id = MSMFB_NEW_REQUEST;
+ return ret;
+ }
+ }
+ } else {
+
+ if (overlayL_id != MSMFB_NEW_REQUEST) {
+ ret = ioctl(fd, MSMFB_OVERLAY_UNSET, &overlayL_id);
+ if (ret) {
+ perror("OverlayL Unset Failed");
+ overlayL_id = MSMFB_NEW_REQUEST;
+ return ret;
+ }
+ }
+
+ if (overlayR_id != MSMFB_NEW_REQUEST) {
+ ret = ioctl(fd, MSMFB_OVERLAY_UNSET, &overlayR_id);
+ if (ret) {
+ perror("OverlayR Unset Failed");
+ overlayR_id = MSMFB_NEW_REQUEST;
+ return ret;
+ }
+ }
+ }
+ memset(&ext_commit, 0, sizeof(struct mdp_display_commit));
+ ext_commit.flags = MDP_DISPLAY_COMMIT_OVERLAY;
+ ext_commit.wait_for_finish = 1;
+ ret = ioctl(fd, MSMFB_DISPLAY_COMMIT, &ext_commit);
+ if (ret < 0) {
+ perror("ERROR: Clear MSMFB_DISPLAY_COMMIT failed!");
+ overlayL_id = MSMFB_NEW_REQUEST;
+ overlayR_id = MSMFB_NEW_REQUEST;
+ return ret;
+ }
+ overlayL_id = MSMFB_NEW_REQUEST;
+ overlayR_id = MSMFB_NEW_REQUEST;
+
+ return 0;
+}
+
+static GRSurface* overlay_init(minui_backend* backend) {
+ int fd = open("/dev/graphics/fb0", O_RDWR);
+ if (fd == -1) {
+ perror("cannot open fb0");
+ return NULL;
+ }
+
+ fb_fix_screeninfo fi;
+ if (ioctl(fd, FBIOGET_FSCREENINFO, &fi) < 0) {
+ perror("failed to get fb0 info");
+ close(fd);
+ return NULL;
+ }
+
+ if (ioctl(fd, FBIOGET_VSCREENINFO, &vi) < 0) {
+ perror("failed to get fb0 info");
+ close(fd);
+ return NULL;
+ }
+
+ // We print this out for informational purposes only, but
+ // throughout we assume that the framebuffer device uses an RGBX
+ // pixel format. This is the case for every development device I
+ // have access to. For some of those devices (eg, hammerhead aka
+ // Nexus 5), FBIOGET_VSCREENINFO *reports* that it wants a
+ // different format (XBGR) but actually produces the correct
+ // results on the display when you write RGBX.
+ //
+ // If you have a device that actually *needs* another pixel format
+ // (ie, BGRX, or 565), patches welcome...
+
+ printf("fb0 reports (possibly inaccurate):\n"
+ " vi.bits_per_pixel = %d\n"
+ " vi.red.offset = %3d .length = %3d\n"
+ " vi.green.offset = %3d .length = %3d\n"
+ " vi.blue.offset = %3d .length = %3d\n",
+ vi.bits_per_pixel,
+ vi.red.offset, vi.red.length,
+ vi.green.offset, vi.green.length,
+ vi.blue.offset, vi.blue.length);
+
+ void* bits = malloc(vi.xres_virtual * vi.yres * (vi.bits_per_pixel / 8));
+ if (bits == NULL) {
+ perror("failed to malloc framebuffer");
+ close(fd);
+ return NULL;
+ }
+
+ memset(bits, 0, fi.smem_len);
+
+ gr_framebuffer[0].width = vi.xres;
+ gr_framebuffer[0].height = vi.yres;
+ gr_framebuffer[0].row_bytes = fi.line_length;
+ gr_framebuffer[0].pixel_bytes = vi.bits_per_pixel / 8;
+ gr_framebuffer[0].data = reinterpret_cast<uint8_t*>(bits);
+ memset(gr_framebuffer[0].data, 0, gr_framebuffer[0].height * gr_framebuffer[0].row_bytes);
+
+ /* check if we can use double buffering */
+ if (vi.yres * fi.line_length * 2 <= fi.smem_len) {
+ double_buffered = true;
+ printf("double buffered.\n");
+ memcpy(gr_framebuffer+1, gr_framebuffer, sizeof(GRSurface));
+ gr_framebuffer[1].data = gr_framebuffer[0].data +
+ gr_framebuffer[0].height * gr_framebuffer[0].row_bytes;
+
+ gr_draw = gr_framebuffer+1;
+
+ } else {
+ double_buffered = false;
+ printf("single buffered.\n");
+ // Without double-buffering, we allocate RAM for a buffer to
+ // draw in, and then "flipping" the buffer consists of a
+ // memcpy from the buffer we allocated to the framebuffer.
+
+ gr_draw = (GRSurface*) malloc(sizeof(GRSurface));
+ if (gr_draw == NULL) {
+ printf("Failed to malloc gr_draw for single buffering.\n");
+ return NULL;
+ } else {
+ memcpy(gr_draw, gr_framebuffer, sizeof(GRSurface));
+ gr_draw->data = (unsigned char*) malloc(gr_draw->height * gr_draw->row_bytes);
+ if (!gr_draw->data) {
+ perror("failed to allocate in-memory surface");
+ return NULL;
+ }
+ }
+ }
+
+ memset(gr_draw->data, 0, gr_draw->height * gr_draw->row_bytes);
+ fb_fd = fd;
+ set_displayed_framebuffer(0);
+
+ frame_size = fi.line_length * vi.yres;
+
+ printf("framebuffer: %d (%d x %d)\n", fb_fd, gr_draw->width, gr_draw->height);
+
+ overlay_blank(backend, true);
+ overlay_blank(backend, false);
+
+ if (!alloc_ion_mem(fi.line_length * vi.yres))
+ allocate_overlay(fb_fd, gr_framebuffer);
+
+ return gr_draw;
+}
+
+static void overlay_exit(minui_backend* backend __unused) {
+ free_overlay(fb_fd);
+ free_ion_mem();
+
+ close(fb_fd);
+ fb_fd = -1;
+
+ if (!double_buffered && gr_draw) {
+ free(gr_draw->data);
+ free(gr_draw);
+ }
+ gr_draw = NULL;
+ if (gr_framebuffer[0].data) {
+ free(gr_framebuffer[0].data);
+ gr_framebuffer[0].data = NULL;
+ }
+}
+#else // MSM_BSP
+static GRSurface* overlay_flip(minui_backend* backend __unused) {
+ return NULL;
+}
+
+static GRSurface* overlay_init(minui_backend* backend __unused) {
+ return NULL;
+}
+
+static void overlay_exit(minui_backend* backend __unused) {
+ return;
+}
+#endif // MSM_BSP
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