根据实际情况,在项目目录的mk文件配置:

#rotate screen to 0, 90, 180, 270 for recovery

#0: ROTATION_NONE

#90: ROTATION_RIGHT

#180: ROTATION_DOWN

#270: ROTATION_LEFT

TARGET_RECOVERY_DEFAULT_ROTATION := ROTATION_LEFT

如:根据问题现象,需要在目前方向顺时针旋转270度后可以显示正常,则在项目目录下客制化TARGET_RECOVERY_DEFAULT_ROTATION := ROTATION_LEFT,达到预期效果。

相关patch:

From 822325166e4b8ad01a9edf6cb11a18d57e84fae9 Mon Sep 17 00:00:00 2001
From: wangqi <wangqi@sykean.com>
Date: Wed, 27 Apr 2022 18:17:02 +0800
Subject: [PATCH] Issue: RK3288-bootable:Bugfix:1080*1920 LCD屏recovery升级UI界面旋转90度后系统启动失败 Reason: 疑似和3288 sdk的旋转接口中临时内存申请有关,改小申请大小后可以正常启动但UI会花屏 Project: RK3288 Reference git: bootable.git Modify: 移植RK3399 SDK recovery流程有关文件 Test Requestment: 线刷升级及恢复出厂设置时recovery UI方向符合预期 owner: 王琦 Reviewer: 马全杰 王宇哲 Commit: none Range: 1Change-Id: I32993839f228d75b621e173a86c8a9746badb26e
---diff --git a/recovery/minui/Android.mk b/recovery/minui/Android.mk
index af1cc84..39b8113 100644
--- a/recovery/minui/Android.mk
+++ b/recovery/minui/Android.mk
@@ -13,6 +13,7 @@LOCAL_WHOLE_STATIC_LIBRARIES += libdrmLOCAL_STATIC_LIBRARIES += libpng+LOCAL_C_INCLUDES += external/libdrmLOCAL_MODULE := libminuiLOCAL_CLANG := true
@@ -31,30 +32,18 @@LOCAL_CFLAGS += -DRECOVERY_BGRAendif-#rotate screen to 0, 90, 180, 270
-#0:   rotate_0
-#90:  rotate_90
-#180: rotate_180
-#270: rotate_270
-ifeq ($(strip $(ROTATE_SCREEN)), rotate_0)
-  LOCAL_CFLAGS += -DRotateScreen_0
-endif
-ifeq ($(strip $(ROTATE_SCREEN)), rotate_90)
-  LOCAL_CFLAGS += -DRotateScreen_90
-endif
-ifeq ($(strip $(ROTATE_SCREEN)), rotate_180)
-  LOCAL_CFLAGS += -DRotateScreen_180
-endif
-ifeq ($(strip $(ROTATE_SCREEN)), rotate_270)
-  LOCAL_CFLAGS += -DRotateScreen_270
-endif
-ifneq ($(TARGET_RECOVERY_OVERSCAN_PERCENT),)LOCAL_CFLAGS += -DOVERSCAN_PERCENT=$(TARGET_RECOVERY_OVERSCAN_PERCENT)elseLOCAL_CFLAGS += -DOVERSCAN_PERCENT=0endif+ifneq ($(TARGET_RECOVERY_DEFAULT_ROTATION),)
+  LOCAL_CFLAGS += -DDEFAULT_ROTATION=$(TARGET_RECOVERY_DEFAULT_ROTATION)
+else
+  LOCAL_CFLAGS += -DDEFAULT_ROTATION=ROTATION_NONE
+endif
+ifeq ($(TARGET_BOARD_PLATFORM_PRODUCT),box)LOCAL_CFLAGS += -DPLATFORM_PRODUCT_BOXendif
diff --git a/recovery/minui/graphics.cpp b/recovery/minui/graphics.cpp
index bbff3cf..9d38cfe 100644
--- a/recovery/minui/graphics.cpp
+++ b/recovery/minui/graphics.cpp
@@ -14,6 +14,7 @@* limitations under the License.*/+#include <stdint.h>#include <stdbool.h>#include <stdlib.h>#include <string.h>
@@ -42,327 +43,311 @@static int overscan_offset_x = 0;static int overscan_offset_y = 0;-static unsigned char gr_current_r = 255;
-static unsigned char gr_current_g = 255;
-static unsigned char gr_current_b = 255;
-static unsigned char gr_current_a = 255;
+static uint32_t gr_current = ~0;
+static constexpr uint32_t alpha_mask = 0xff000000;static GRSurface* gr_draw = NULL;
+static GRRotation rotation = ROTATION_NONE;-//撤销旋转
-void back_no_rotate(){
-#ifdef RotateScreen_90
-    rk_rotate_surface_270(gr_draw, gr_draw->width, gr_draw->height);
-#elif defined RotateScreen_180
-    rk_rotate_surface_180(gr_draw);
-#elif defined RotateScreen_270
-    rk_rotate_surface_90(gr_draw, gr_draw->width, gr_draw->height);
-#endif
+static bool outside(int x, int y) {
+  return x < 0 || x >= (rotation % 2 ? gr_draw->height : gr_draw->width) || y < 0 ||
+         y >= (rotation % 2 ? gr_draw->width : gr_draw->height);}-static unsigned int gr_get_draw_width(GRSurface* surface) {
-    if (surface == NULL) {
-        return 0;
+const GRFont* gr_sys_font() {
+  return gr_font;
+}
+
+int gr_measure(const GRFont* font, const char* s) {
+  return font->char_width * strlen(s);
+}
+
+void gr_font_size(const GRFont* font, int* x, int* y) {
+  *x = font->char_width;
+  *y = font->char_height;
+}
+
+// Blends gr_current onto pix value, assumes alpha as most significant byte.
+static inline uint32_t pixel_blend(uint8_t alpha, uint32_t pix) {
+  if (alpha == 255) return gr_current;
+  if (alpha == 0) return pix;
+  uint32_t pix_r = pix & 0xff;
+  uint32_t pix_g = pix & 0xff00;
+  uint32_t pix_b = pix & 0xff0000;
+  uint32_t cur_r = gr_current & 0xff;
+  uint32_t cur_g = gr_current & 0xff00;
+  uint32_t cur_b = gr_current & 0xff0000;
+
+  uint32_t out_r = (pix_r * (255 - alpha) + cur_r * alpha) / 255;
+  uint32_t out_g = (pix_g * (255 - alpha) + cur_g * alpha) / 255;
+  uint32_t out_b = (pix_b * (255 - alpha) + cur_b * alpha) / 255;
+
+  return (out_r & 0xff) | (out_g & 0xff00) | (out_b & 0xff0000) | (gr_current & 0xff000000);
+}
+
+// increments pixel pointer right, with current rotation.
+static void incr_x(uint32_t** p, int row_pixels) {
+  if (rotation % 2) {
+    *p = *p + (rotation == 1 ? 1 : -1) * row_pixels;
+  } else {
+    *p = *p + (rotation ? -1 : 1);
+  }
+}
+
+// increments pixel pointer down, with current rotation.
+static void incr_y(uint32_t** p, int row_pixels) {
+  if (rotation % 2) {
+    *p = *p + (rotation == 1 ? -1 : 1);
+  } else {
+    *p = *p + (rotation ? -1 : 1) * row_pixels;
+  }
+}
+
+// returns pixel pointer at given coordinates with rotation adjustment.
+static uint32_t* pixel_at(GRSurface* surf, int x, int y, int row_pixels) {
+  switch (rotation) {
+    case ROTATION_NONE:
+      return reinterpret_cast<uint32_t*>(surf->data) + y * row_pixels + x;
+    case ROTATION_RIGHT:
+      return reinterpret_cast<uint32_t*>(surf->data) + x * row_pixels + (surf->width - y);
+    case ROTATION_DOWN:
+      return reinterpret_cast<uint32_t*>(surf->data) + (surf->height - 1 - y) * row_pixels +
+             (surf->width - 1 - x);
+    case ROTATION_LEFT:
+      return reinterpret_cast<uint32_t*>(surf->data) + (surf->height - 1 - x) * row_pixels + y;
+    default:
+      printf("invalid rotation %d", rotation);
+  }
+  return nullptr;
+}
+
+static void text_blend(uint8_t* src_p, int src_row_bytes, uint32_t* dst_p, int dst_row_pixels,
+                       int width, int height) {
+  uint8_t alpha_current = static_cast<uint8_t>((alpha_mask & gr_current) >> 24);
+  for (int j = 0; j < height; ++j) {
+    uint8_t* sx = src_p;
+    uint32_t* px = dst_p;
+    for (int i = 0; i < width; ++i, incr_x(&px, dst_row_pixels)) {
+      uint8_t a = *sx++;
+      if (alpha_current < 255) a = (static_cast<uint32_t>(a) * alpha_current) / 255;
+      *px = pixel_blend(a, *px);}
-#if (defined RotateScreen_90) || (defined RotateScreen_270)
-    return surface->height;
-#endif
-    return surface->width;
+    src_p += src_row_bytes;
+    incr_y(&dst_p, dst_row_pixels);
+  }}-static unsigned int gr_get_draw_height(GRSurface* surface) {
-    if (surface == NULL) {
-        return 0;
-    }
-#if (defined RotateScreen_90) || (defined RotateScreen_270)
-    return surface->width;
-#endif
-    return surface->height;
-}
+void gr_text(const GRFont* font, int x, int y, const char* s, bool bold) {
+  if (!font || !font->texture || (gr_current & alpha_mask) == 0) return;-static unsigned int gr_get_row_bytes(GRSurface* surface){
-    int row_bytes;
+  if (font->texture->pixel_bytes != 1) {
+    printf("gr_text: font has wrong format\n");
+    return;
+  }-    if(surface == NULL){
-        return 0;
+  bold = bold && (font->texture->height != font->char_height);
+
+  x += overscan_offset_x;
+  y += overscan_offset_y;
+
+  unsigned char ch;
+  while ((ch = *s++)) {
+    if (outside(x, y) || outside(x + font->char_width - 1, y + font->char_height - 1)) break;
+
+    if (ch < ' ' || ch > '~') {
+      ch = '?';}-    row_bytes = ((gr_get_draw_width(surface)+ 15) & (~15)) * surface->pixel_bytes;
+    int row_pixels = gr_draw->row_bytes / gr_draw->pixel_bytes;
+    uint8_t* src_p = font->texture->data + ((ch - ' ') * font->char_width) +
+                     (bold ? font->char_height * font->texture->row_bytes : 0);
+    uint32_t* dst_p = pixel_at(gr_draw, x, y, row_pixels);-    return row_bytes;
-}
-static bool outside(int x, int y)
-{
-    return x < 0 || x >= gr_get_draw_width(gr_draw) || y < 0 || y >= gr_get_draw_height(gr_draw);
-}
+    text_blend(src_p, font->texture->row_bytes, dst_p, row_pixels, font->char_width,
+               font->char_height);-const GRFont* gr_sys_font()
-{
-    return gr_font;
-}
-
-int gr_measure(const GRFont* font, const char *s)
-{
-    return font->char_width * strlen(s);
-}
-
-void gr_font_size(const GRFont* font, int *x, int *y)
-{
-    *x = font->char_width;
-    *y = font->char_height;
-}
-
-static void text_blend(unsigned char* src_p, int src_row_bytes,
-                       unsigned char* dst_p, int dst_row_bytes,
-                       int width, int height)
-{
-    for (int j = 0; j < height; ++j) {
-        unsigned char* sx = src_p;
-        unsigned char* px = dst_p;
-        for (int i = 0; i < width; ++i) {
-            unsigned char a = *sx++;
-            if (gr_current_a < 255) a = ((int)a * gr_current_a) / 255;
-            if (a == 255) {
-                *px++ = gr_current_r;
-                *px++ = gr_current_g;
-                *px++ = gr_current_b;
-                px++;
-            } else if (a > 0) {
-                *px = (*px * (255-a) + gr_current_r * a) / 255;
-                ++px;
-                *px = (*px * (255-a) + gr_current_g * a) / 255;
-                ++px;
-                *px = (*px * (255-a) + gr_current_b * a) / 255;
-                ++px;
-                ++px;
-            } else {
-                px += 4;
-            }
-        }
-        src_p += src_row_bytes;
-        dst_p += dst_row_bytes;
-    }
-}
-
-void gr_text(const GRFont* font, int x, int y, const char *s, bool bold)
-{
-    if (!font->texture || gr_current_a == 0) return;
-
-    bold = bold && (font->texture->height != font->char_height);
-
-    x += overscan_offset_x;
-    y += overscan_offset_y;
-
-    unsigned char ch;
-    while ((ch = *s++)) {
-        if (outside(x, y) || outside(x+font->char_width-1, y+font->char_height-1)) break;
-
-        if (ch < ' ' || ch > '~') {
-            ch = '?';
-        }
-
-        unsigned char* src_p = font->texture->data + ((ch - ' ') * font->char_width) +
-                               (bold ? font->char_height * font->texture->row_bytes : 0);
-
-        unsigned char* dst_p = gr_draw->data + y*gr_get_row_bytes(gr_draw) + x*gr_draw->pixel_bytes;
-        text_blend(src_p, font->texture->row_bytes,dst_p, gr_get_row_bytes(gr_draw),font->char_width, font->char_height);
-
-        x += font->char_width;
-    }
+    x += font->char_width;
+  }}void gr_texticon(int x, int y, GRSurface* icon) {
-    if (icon == NULL) return;
+  if (icon == NULL) return;-    if (icon->pixel_bytes != 1) {
-        printf("gr_texticon: source has wrong format\n");
-        return;
-    }
+  if (icon->pixel_bytes != 1) {
+    printf("gr_texticon: source has wrong format\n");
+    return;
+  }-    x += overscan_offset_x;
-    y += overscan_offset_y;
+  x += overscan_offset_x;
+  y += overscan_offset_y;-    if (outside(x, y) || outside(x+icon->width-1, y+icon->height-1)) return;
+  if (outside(x, y) || outside(x + icon->width - 1, y + icon->height - 1)) return;-    unsigned char* src_p = icon->data;
-    unsigned char* dst_p = gr_draw->data + y*gr_get_row_bytes(gr_draw) + x*gr_draw->pixel_bytes;
+  int row_pixels = gr_draw->row_bytes / gr_draw->pixel_bytes;
+  uint8_t* src_p = icon->data;
+  uint32_t* dst_p = pixel_at(gr_draw, x, y, row_pixels);-    text_blend(src_p, icon->row_bytes,
-               dst_p, gr_get_row_bytes(gr_draw),
-               icon->width, icon->height);
+  text_blend(src_p, icon->row_bytes, dst_p, row_pixels, icon->width, icon->height);}-void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a)
-{
+void gr_color(unsigned char r, unsigned char g, unsigned char b, unsigned char a) {
+  uint32_t r32 = r, g32 = g, b32 = b, a32 = a;#if defined(RECOVERY_ABGR) || defined(RECOVERY_BGRA)
-    gr_current_r = b;
-    gr_current_g = g;
-    gr_current_b = r;
-    gr_current_a = a;
+  gr_current = (a32 << 24) | (r32 << 16) | (g32 << 8) | b32;#else
-    gr_current_r = r;
-    gr_current_g = g;
-    gr_current_b = b;
-    gr_current_a = a;
+  gr_current = (a32 << 24) | (b32 << 16) | (g32 << 8) | r32;#endif}-void gr_clear()
-{
-    if (gr_current_r == gr_current_g && gr_current_r == gr_current_b) {
-        memset(gr_draw->data, gr_current_r, gr_draw->height * gr_draw->row_bytes);
-    } else {
-        unsigned char* px = gr_draw->data;
-        for (int y = 0; y < gr_draw->height; ++y) {
-            for (int x = 0; x < gr_draw->width; ++x) {
-                *px++ = gr_current_r;
-                *px++ = gr_current_g;
-                *px++ = gr_current_b;
-                px++;
-            }
-            px += gr_draw->row_bytes - (gr_draw->width * gr_draw->pixel_bytes);
-        }
+void gr_clear() {
+  if ((gr_current & 0xff) == ((gr_current >> 8) & 0xff) &&
+      (gr_current & 0xff) == ((gr_current >> 16) & 0xff) &&
+      (gr_current & 0xff) == ((gr_current >> 24) & 0xff) &&
+      gr_draw->row_bytes == gr_draw->width * gr_draw->pixel_bytes) {
+    memset(gr_draw->data, gr_current & 0xff, gr_draw->height * gr_draw->row_bytes);
+  } else {
+    uint32_t* px = reinterpret_cast<uint32_t*>(gr_draw->data);
+    int row_diff = gr_draw->row_bytes / gr_draw->pixel_bytes - gr_draw->width;
+    for (int y = 0; y < gr_draw->height; ++y) {
+      for (int x = 0; x < gr_draw->width; ++x) {
+        *px++ = gr_current;
+      }
+      px += row_diff;}
+  }}-void gr_fill(int x1, int y1, int x2, int y2)
-{
-    x1 += overscan_offset_x;
-    y1 += overscan_offset_y;
+void gr_fill(int x1, int y1, int x2, int y2) {
+  x1 += overscan_offset_x;
+  y1 += overscan_offset_y;-    x2 += overscan_offset_x;
-    y2 += overscan_offset_y;
+  x2 += overscan_offset_x;
+  y2 += overscan_offset_y;-    if (outside(x1, y1) || outside(x2-1, y2-1)) return;
+  if (outside(x1, y1) || outside(x2 - 1, y2 - 1)) return;-    unsigned char* p = gr_draw->data + y1 * gr_get_row_bytes(gr_draw) + x1 * gr_draw->pixel_bytes;
-    if (gr_current_a == 255) {
-        int x, y;
-        for (y = y1; y < y2; ++y) {
-            unsigned char* px = p;
-            for (x = x1; x < x2; ++x) {
-                *px++ = gr_current_r;
-                *px++ = gr_current_g;
-                *px++ = gr_current_b;
-                px++;
-            }
-            p += gr_get_row_bytes(gr_draw);
-        }
-    } else if (gr_current_a > 0) {
-        int x, y;
-        for (y = y1; y < y2; ++y) {
-            unsigned char* px = p;
-            for (x = x1; x < x2; ++x) {
-                *px = (*px * (255-gr_current_a) + gr_current_r * gr_current_a) / 255;
-                ++px;
-                *px = (*px * (255-gr_current_a) + gr_current_g * gr_current_a) / 255;
-                ++px;
-                *px = (*px * (255-gr_current_a) + gr_current_b * gr_current_a) / 255;
-                ++px;
-                ++px;
-            }
-            p += gr_get_row_bytes(gr_draw);
-        }
+  int row_pixels = gr_draw->row_bytes / gr_draw->pixel_bytes;
+  uint32_t* p = pixel_at(gr_draw, x1, y1, row_pixels);
+  uint8_t alpha = static_cast<uint8_t>(((gr_current & alpha_mask) >> 24));
+  if (alpha > 0) {
+    for (int y = y1; y < y2; ++y) {
+      uint32_t* px = p;
+      for (int x = x1; x < x2; ++x) {
+        *px = pixel_blend(alpha, *px);
+        incr_x(&px, row_pixels);
+      }
+      incr_y(&p, row_pixels);}
+  }}void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy) {
-    if (source == NULL) return;
+  if (source == NULL) return;-    if (gr_draw->pixel_bytes != source->pixel_bytes) {
-        printf("gr_blit: source has wrong format\n");
-        return;
+  if (gr_draw->pixel_bytes != source->pixel_bytes) {
+    printf("gr_blit: source has wrong format\n");
+    return;
+  }
+
+  dx += overscan_offset_x;
+  dy += overscan_offset_y;
+
+  if (outside(dx, dy) || outside(dx + w - 1, dy + h - 1)) return;
+
+  if (rotation) {
+    int src_row_pixels = source->row_bytes / source->pixel_bytes;
+    int row_pixels = gr_draw->row_bytes / gr_draw->pixel_bytes;
+    uint32_t* src_py = reinterpret_cast<uint32_t*>(source->data) + sy * source->row_bytes / 4 + sx;
+    uint32_t* dst_py = pixel_at(gr_draw, dx, dy, row_pixels);
+
+    for (int y = 0; y < h; y += 1) {
+      uint32_t* src_px = src_py;
+      uint32_t* dst_px = dst_py;
+      for (int x = 0; x < w; x += 1) {
+        *dst_px = *src_px++;
+        incr_x(&dst_px, row_pixels);
+      }
+      src_py += src_row_pixels;
+      incr_y(&dst_py, row_pixels);}
-
-    dx += overscan_offset_x;
-    dy += overscan_offset_y;
-
-    while (outside(dx, dy) || outside(dx+w-1, dy+h-1)){
-        return ;
-        w = w - 4;
-        if(outside(dx, dy)){
-            return ;
-        }
-    }
-
-    unsigned char* src_p = source->data + sy*source->row_bytes + sx*source->pixel_bytes;
-    unsigned char* dst_p = gr_draw->data + dy*gr_get_row_bytes(gr_draw) + dx*gr_draw->pixel_bytes;
+  } else {
+    unsigned char* src_p = source->data + sy * source->row_bytes + sx * source->pixel_bytes;
+    unsigned char* dst_p = gr_draw->data + dy * gr_draw->row_bytes + dx * gr_draw->pixel_bytes;int i;for (i = 0; i < h; ++i) {
-        memcpy(dst_p, src_p, w * source->pixel_bytes);
-        src_p += source->row_bytes;
-        dst_p += gr_get_row_bytes(gr_draw);
+      memcpy(dst_p, src_p, w * source->pixel_bytes);
+      src_p += source->row_bytes;
+      dst_p += gr_draw->row_bytes;}
+  }}unsigned int gr_get_width(GRSurface* surface) {
-    if (surface == NULL) {
-        return 0;
-    }
-    return surface->width;
+  if (surface == NULL) {
+    return 0;
+  }
+  return surface->width;}unsigned int gr_get_height(GRSurface* surface) {
-    if (surface == NULL) {
-        return 0;
-    }
-    return surface->height;
+  if (surface == NULL) {
+    return 0;
+  }
+  return surface->height;}int gr_init_font(const char* name, GRFont** dest) {
-    GRFont* font = reinterpret_cast<GRFont*>(calloc(1, sizeof(*gr_font)));
-    if (font == nullptr) {
-        return -1;
-    }
+  GRFont* font = static_cast<GRFont*>(calloc(1, sizeof(*gr_font)));
+  if (font == nullptr) {
+    return -1;
+  }-    int res = res_create_alpha_surface(name, &(font->texture));
-    if (res < 0) {
-        free(font);
-        return res;
-    }
+  int res = res_create_alpha_surface(name, &(font->texture));
+  if (res < 0) {
+    free(font);
+    return res;
+  }-    // The font image should be a 96x2 array of character images.  The
-    // columns are the printable ASCII characters 0x20 - 0x7f.  The
-    // top row is regular text; the bottom row is bold.
-    font->char_width = font->texture->width / 96;
-    font->char_height = font->texture->height / 2;
+  // The font image should be a 96x2 array of character images.  The
+  // columns are the printable ASCII characters 0x20 - 0x7f.  The
+  // top row is regular text; the bottom row is bold.
+  font->char_width = font->texture->width / 96;
+  font->char_height = font->texture->height / 2;-    *dest = font;
+  *dest = font;-    return 0;
+  return 0;}-static void gr_init_font(void)
-{
-    int res = gr_init_font("font", &gr_font);
-    if (res == 0) {
-        return;
-    }
+static void gr_init_font(void) {
+  int res = gr_init_font("font", &gr_font);
+  if (res == 0) {
+    return;
+  }-    printf("failed to read font: res=%d\n", res);
+  printf("failed to read font: res=%d\n", res);+  // fall back to the compiled-in font.
+  gr_font = static_cast<GRFont*>(calloc(1, sizeof(*gr_font)));
+  gr_font->texture = static_cast<GRSurface*>(malloc(sizeof(*gr_font->texture)));
+  gr_font->texture->width = font.width;
+  gr_font->texture->height = font.height;
+  gr_font->texture->row_bytes = font.width;
+  gr_font->texture->pixel_bytes = 1;-    // fall back to the compiled-in font.
-    gr_font = reinterpret_cast<GRFont*>(calloc(1, sizeof(*gr_font)));
-    gr_font->texture = reinterpret_cast<GRSurface*>(malloc(sizeof(*gr_font->texture)));
-    gr_font->texture->width = font.width;
-    gr_font->texture->height = font.height;
-    gr_font->texture->row_bytes = font.width;
-    gr_font->texture->pixel_bytes = 1;
+  unsigned char* bits = static_cast<unsigned char*>(malloc(font.width * font.height));
+  gr_font->texture->data = bits;-    unsigned char* bits = reinterpret_cast<unsigned char*>(malloc(font.width * font.height));
-    gr_font->texture->data = reinterpret_cast<unsigned char*>(bits);
+  unsigned char data;
+  unsigned char* in = font.rundata;
+  while ((data = *in++)) {
+    memset(bits, (data & 0x80) ? 255 : 0, data & 0x7f);
+    bits += (data & 0x7f);
+  }-    unsigned char data;
-    unsigned char* in = font.rundata;
-    while((data = *in++)) {
-        memset(bits, (data & 0x80) ? 255 : 0, data & 0x7f);
-        bits += (data & 0x7f);
-    }
-
-    gr_font->char_width = font.char_width;
-    gr_font->char_height = font.char_height;
+  gr_font->char_width = font.char_width;
+  gr_font->char_height = font.char_height;}#if 0
@@ -449,6 +434,12 @@gr_flip();gr_flip();+    gr_rotate(DEFAULT_ROTATION);
+
+    if (gr_draw->pixel_bytes != 4) {
+        printf("gr_init: Only 4-byte pixel formats supported\n");
+    }
+return 0;}@@ -457,17 +448,22 @@gr_backend->exit(gr_backend);}-int gr_fb_width(void)
-{
-    return (gr_get_draw_width(gr_draw) - 2*overscan_offset_x);
+int gr_fb_width() {
+  return rotation % 2 ? gr_draw->height - 2 * overscan_offset_y
+                      : gr_draw->width - 2 * overscan_offset_x;}-int gr_fb_height(void)
-{
-    return (gr_get_draw_height(gr_draw) - 2*overscan_offset_y);
+int gr_fb_height() {
+  return rotation % 2 ? gr_draw->width - 2 * overscan_offset_x
+                      : gr_draw->height - 2 * overscan_offset_y;}void gr_fb_blank(bool blank){gr_backend->blank(gr_backend, blank);}
+
+void gr_rotate(GRRotation rot) {
+  printf("gr_rotate: rot=%d\n", rot);
+  rotation = rot;
+}
diff --git a/recovery/minui/graphics.h b/recovery/minui/graphics.h
index 0a06f9a..52968eb 100644
--- a/recovery/minui/graphics.h
+++ b/recovery/minui/graphics.h
@@ -40,8 +40,4 @@minui_backend* open_adf();minui_backend* open_drm();-void rk_rotate_surface_90(GRSurface* surface, int width, int height);
-void rk_rotate_surface_180(GRSurface* surface);
-void rk_rotate_surface_270(GRSurface* surface, int width, int height);
-#endif
diff --git a/recovery/minui/graphics_drm.cpp b/recovery/minui/graphics_drm.cpp
index 6490fb8..4d7177f 100644
--- a/recovery/minui/graphics_drm.cpp
+++ b/recovery/minui/graphics_drm.cpp
@@ -30,6 +30,7 @@#include "minui.h"#include "graphics.h"
+#include "libdrm_macros.h"#define ARRAY_SIZE(A) (sizeof(A)/sizeof(*(A)))@@ -78,7 +79,7 @@drm_disable_crtc(drm_fd, main_monitor_crtc);elsedrm_enable_crtc(drm_fd, main_monitor_crtc,
-                        drm_surfaces[1 - current_buffer]);
+                        drm_surfaces[current_buffer]);}static void drm_destroy_surface(struct drm_surface *surface) {
@@ -193,7 +194,7 @@surface->base.row_bytes = create_dumb.pitch;surface->base.pixel_bytes = create_dumb.bpp / 8;surface->base.data = (unsigned char*)
-                         mmap(NULL,
+                         drm_mmap(NULL,surface->base.height * surface->base.row_bytes,PROT_READ | PROT_WRITE, MAP_SHARED,drm_fd, map_dumb.offset);
@@ -443,14 +444,6 @@static GRSurface* drm_flip(minui_backend* backend __unused) {int ret;
-
-#ifdef RotateScreen_90
-   rk_rotate_surface_90(&(drm_surfaces[current_buffer]->base), drm_surfaces[current_buffer]->base.height, drm_surfaces[current_buffer]->base.width);
-#elif defined RotateScreen_180
-   rk_rotate_surface_180(&(drm_surfaces[current_buffer]->base));
-#elif defined RotateScreen_270
-   rk_rotate_surface_270(&(drm_surfaces[current_buffer]->base), drm_surfaces[current_buffer]->base.height, drm_surfaces[current_buffer]->base.width);
-#endifret = drmModePageFlip(drm_fd, main_monitor_crtc->crtc_id,drm_surfaces[current_buffer]->fb_id, 0, NULL);
diff --git a/recovery/minui/graphics_fbdev.cpp b/recovery/minui/graphics_fbdev.cpp
index 3fd28b5..1aa1c36 100644
--- a/recovery/minui/graphics_fbdev.cpp
+++ b/recovery/minui/graphics_fbdev.cpp
@@ -53,78 +53,6 @@.exit = fbdev_exit,};-void rk_rotate_surface_90(GRSurface* surface, int width, int height){
-    int byt = 4; // 4 byte for ARGB_8888 (2 byte for RGB_565)
-    int draw_width = (width + 15) & (~15);
-    int draw_height = (height + 15) & (~15);
-    int length = draw_width * draw_height;
-    unsigned char* des_data = (unsigned char *)malloc(sizeof(unsigned char)*length*byt);
-    memset(des_data, 0, sizeof(unsigned char)*length*byt);
-    memcpy(des_data, surface->data, sizeof(unsigned char)*length*byt);
-
-    int i, j;
-    int n1, n2;
-    for(i = 0; i < draw_height; i++){
-        for(j = 0; j < draw_width; j++){
-            n1 = j*draw_height+draw_height-i-1;
-            n2 = i*draw_width+j;
-            surface->data[n1*byt] = des_data[n2*byt];
-            surface->data[n1*byt+1] = des_data[n2*byt+1];
-            surface->data[n1*byt+2] = des_data[n2*byt+2];
-            surface->data[n1*byt+3] = des_data[n2*byt+3];
-        }
-    }
-    free(des_data);
-}
-
-void rk_rotate_surface_180(GRSurface* surface)
-{
-    printf("(%s:%d) --- start.\n", __func__, __LINE__);
-    int draw_width = (surface->width + 15) & (~15);
-    int draw_height = (surface->height + 15) & (~15);
-    int byt = 4; // 4 byte for ARGB_8888 (2 byte for RGB_565)
-
-    int length = draw_width * draw_height;
-    unsigned char * des_data = (unsigned char *)malloc(sizeof(unsigned char)*length*byt);
-    memcpy(des_data,surface->data,sizeof(unsigned char)*length*byt);
-
-    memset(surface->data, 0, sizeof(unsigned char)*length*byt);
-    int i = 0;
-    for (i=0; i<length; i++)
-    {
-        surface->data[i*byt] = des_data[(length-i-1)*byt];
-        surface->data[i*byt+1] = des_data[(length-i-1)*byt+1];
-        surface->data[i*byt+2] = des_data[(length-i-1)*byt+2];
-        surface->data[i*byt+3] = des_data[(length-i-1)*byt+3];
-    }
-
-    free(des_data);
-}
-
-void rk_rotate_surface_270(GRSurface* surface, int width, int height){
-    int byt = 4; // 4 byte for ARGB_8888 (2 byte for RGB_565)
-    int draw_width = (width + 15) & (~15);
-    int draw_height = (height + 15) & (~15);
-    int length = draw_width * draw_height;
-    unsigned char* des_data = (unsigned char *)malloc(sizeof(unsigned char)*length*byt);
-    memcpy(des_data, surface->data, sizeof(unsigned char)*length*byt);
-    memset(surface->data, 0, sizeof(unsigned char)*length*byt);
-    int i, j;
-    int n1, n2;
-    for(i = 0; i < draw_height; i++){
-        for(j = 0; j < draw_width; j++){
-            n1 = (draw_width-j-1)*draw_height+i;
-            n2 = i*draw_width+j;
-            surface->data[n1*byt] = des_data[n2*byt];
-            surface->data[n1*byt+1] = des_data[n2*byt+1];
-            surface->data[n1*byt+2] = des_data[n2*byt+2];
-            surface->data[n1*byt+3] = des_data[n2*byt+3];
-        }
-    }
-
-    free(des_data);
-}
-minui_backend* open_fbdev() {return &my_backend;}
@@ -272,13 +200,6 @@// then flip the driver so we're displaying the other buffer// instead.gr_draw = gr_framebuffer + displayed_buffer;
-#ifdef RotateScreen_90
-        rk_rotate_surface_90(&gr_framebuffer[1-displayed_buffer], gr_framebuffer[1-displayed_buffer].height, gr_framebuffer[1-displayed_buffer].width);
-#elif defined RotateScreen_180
-        rk_rotate_surface_180(&gr_framebuffer[1-displayed_buffer]);
-#elif defined RotateScreen_270
-        rk_rotate_surface_270(&gr_framebuffer[1-displayed_buffer], gr_framebuffer[1-displayed_buffer].height, gr_framebuffer[1-displayed_buffer].width);
-#endifset_displayed_framebuffer(1-displayed_buffer);} else {// Copy from the in-memory surface to the framebuffer.
diff --git a/recovery/minui/minui.h b/recovery/minui/minui.h
index a72aec8..b2b9aa3 100644
--- a/recovery/minui/minui.h
+++ b/recovery/minui/minui.h
@@ -26,17 +26,24 @@//struct GRSurface {
-    int width;
-    int height;
-    int row_bytes;
-    int pixel_bytes;
-    unsigned char* data;
+  int width;
+  int height;
+  int row_bytes;
+  int pixel_bytes;
+  unsigned char* data;};struct GRFont {
-    GRSurface* texture;
-    int char_width;
-    int char_height;
+  GRSurface* texture;
+  int char_width;
+  int char_height;
+};
+
+enum GRRotation {
+  ROTATION_NONE = 0,
+  ROTATION_RIGHT = 1,
+  ROTATION_DOWN = 2,
+  ROTATION_LEFT = 3,};int gr_init();
@@ -56,15 +63,16 @@const GRFont* gr_sys_font();int gr_init_font(const char* name, GRFont** dest);
-void gr_text(const GRFont* font, int x, int y, const char *s, bool bold);
-int gr_measure(const GRFont* font, const char *s);
-void gr_font_size(const GRFont* font, int *x, int *y);
+void gr_text(const GRFont* font, int x, int y, const char* s, bool bold);
+int gr_measure(const GRFont* font, const char* s);
+void gr_font_size(const GRFont* font, int* x, int* y);void gr_blit(GRSurface* source, int sx, int sy, int w, int h, int dx, int dy);unsigned int gr_get_width(GRSurface* surface);unsigned int gr_get_height(GRSurface* surface);
-//撤销旋转
-void back_no_rotate();
+
+// Set rotation, flips gr_fb_width/height if 90 degree rotation difference
+void gr_rotate(GRRotation rotation);//// Input events.
@@ -115,8 +123,8 @@// should have a 'Frames' text chunk whose value is the number of// frames this image represents.  The pixel data itself is interlaced// by row.
-int res_create_multi_display_surface(const char* name, int* frames,
-                                     int* fps, GRSurface*** pSurface);
+int res_create_multi_display_surface(const char* name, int* frames, int* fps,
+                                     GRSurface*** pSurface);// Load a single alpha surface from a grayscale PNG image.int res_create_alpha_surface(const char* name, GRSurface** pSurface);
diff --git a/recovery/screen_ui.cpp b/recovery/screen_ui.cpp
index f785a6f..95b97d1 100644
--- a/recovery/screen_ui.cpp
+++ b/recovery/screen_ui.cpp
@@ -344,7 +344,6 @@// Redraw everything on the screen and flip the screen (make it visible).// Should only be called with updateMutex locked.void ScreenRecoveryUI::update_screen_locked() {
-    back_no_rotate();draw_screen_locked();gr_flip();}
@@ -352,7 +351,6 @@// Updates only the progress bar, if possible, otherwise redraws the screen.// Should only be called with updateMutex locked.void ScreenRecoveryUI::update_progress_locked() {
-    back_no_rotate();if (show_text || !pagesIdentical) {draw_screen_locked();    // Must redraw the whole screenpagesIdentical = true;

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