Move core/src/ up to core/.

This CL moves the core/src/ files up to core/ and fixes up the include guards,
includes and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1800523005 .

1 files changed, 948 insertions, 0 deletions

diff --git a/core/fxcodec/lbmp/fx_bmp.cpp b/core/fxcodec/lbmp/fx_bmp.cpp
new file mode 100644
index 0000000000..15384d56ff
--- /dev/null
+++ b/core/fxcodec/lbmp/fx_bmp.cpp
@@ -0,0 +1,948 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+
+#include "core/fxcodec/lbmp/fx_bmp.h"
+
+#include <algorithm>
+
+namespace {
+
+const size_t kBmpCoreHeaderSize = 12;
+const size_t kBmpInfoHeaderSize = 40;
+
+// TODO(thestig): Replace with FXDWORD_GET_LSBFIRST?
+FX_DWORD GetDWord_LSBFirst(uint8_t* p) {
+  return p[0] | (p[1] << 8) | (p[2] << 16) | (p[3] << 24);
+}
+
+void SetDWord_LSBFirst(uint8_t* p, FX_DWORD v) {
+  p[0] = (uint8_t)v;
+  p[1] = (uint8_t)(v >> 8);
+  p[2] = (uint8_t)(v >> 16);
+  p[3] = (uint8_t)(v >> 24);
+}
+}  // namespace
+
+FX_WORD GetWord_LSBFirst(uint8_t* p) {
+  return p[0] | (p[1] << 8);
+}
+void SetWord_LSBFirst(uint8_t* p, FX_WORD v) {
+  p[0] = (uint8_t)v;
+  p[1] = (uint8_t)(v >> 8);
+}
+void bmp_error(bmp_decompress_struct_p bmp_ptr, const FX_CHAR* err_msg) {
+  if (bmp_ptr && bmp_ptr->bmp_error_fn) {
+    bmp_ptr->bmp_error_fn(bmp_ptr, err_msg);
+  }
+}
+bmp_decompress_struct_p bmp_create_decompress() {
+  bmp_decompress_struct_p bmp_ptr = FX_Alloc(bmp_decompress_struct, 1);
+  if (bmp_ptr == NULL) {
+    return NULL;
+  }
+  FXSYS_memset(bmp_ptr, 0, sizeof(bmp_decompress_struct));
+  bmp_ptr->decode_status = BMP_D_STATUS_HEADER;
+  bmp_ptr->bmp_header_ptr = FX_Alloc(BmpFileHeader, 1);
+  return bmp_ptr;
+}
+void bmp_destroy_decompress(bmp_decompress_struct_pp bmp_ptr_ptr) {
+  if (bmp_ptr_ptr == NULL || *bmp_ptr_ptr == NULL) {
+    return;
+  }
+  bmp_decompress_struct_p bmp_ptr = *bmp_ptr_ptr;
+  *bmp_ptr_ptr = NULL;
+  if (bmp_ptr->out_row_buffer) {
+    FX_Free(bmp_ptr->out_row_buffer);
+  }
+  FX_Free(bmp_ptr->pal_ptr);
+  FX_Free(bmp_ptr->bmp_header_ptr);
+  FX_Free(bmp_ptr);
+}
+int32_t bmp_read_header(bmp_decompress_struct_p bmp_ptr) {
+  if (bmp_ptr == NULL) {
+    return 0;
+  }
+  FX_DWORD skip_size_org = bmp_ptr->skip_size;
+  if (bmp_ptr->decode_status == BMP_D_STATUS_HEADER) {
+    ASSERT(sizeof(BmpFileHeader) == 14);
+    BmpFileHeader* bmp_header_ptr = NULL;
+    if (bmp_read_data(bmp_ptr, (uint8_t**)&bmp_header_ptr, 14) == NULL) {
+      return 2;
+    }
+    bmp_ptr->bmp_header_ptr->bfType =
+        GetWord_LSBFirst((uint8_t*)&bmp_header_ptr->bfType);
+    bmp_ptr->bmp_header_ptr->bfOffBits =
+        GetDWord_LSBFirst((uint8_t*)&bmp_header_ptr->bfOffBits);
+    bmp_ptr->data_size = GetDWord_LSBFirst((uint8_t*)&bmp_header_ptr->bfSize);
+    if (bmp_ptr->bmp_header_ptr->bfType != BMP_SIGNATURE) {
+      bmp_error(bmp_ptr, "Not A Bmp Image");
+      return 0;
+    }
+    if (bmp_ptr->avail_in < sizeof(FX_DWORD)) {
+      bmp_ptr->skip_size = skip_size_org;
+      return 2;
+    }
+    bmp_ptr->img_ifh_size =
+        GetDWord_LSBFirst(bmp_ptr->next_in + bmp_ptr->skip_size);
+    bmp_ptr->pal_type = 0;
+    static_assert(sizeof(BmpCoreHeader) == kBmpCoreHeaderSize,
+                  "BmpCoreHeader has wrong size");
+    static_assert(sizeof(BmpInfoHeader) == kBmpInfoHeaderSize,
+                  "BmpInfoHeader has wrong size");
+    switch (bmp_ptr->img_ifh_size) {
+      case kBmpCoreHeaderSize: {
+        bmp_ptr->pal_type = 1;
+        BmpCoreHeaderPtr bmp_core_header_ptr = NULL;
+        if (bmp_read_data(bmp_ptr, (uint8_t**)&bmp_core_header_ptr,
+                          bmp_ptr->img_ifh_size) == NULL) {
+          bmp_ptr->skip_size = skip_size_org;
+          return 2;
+        }
+        bmp_ptr->width =
+            GetWord_LSBFirst((uint8_t*)&bmp_core_header_ptr->bcWidth);
+        bmp_ptr->height =
+            GetWord_LSBFirst((uint8_t*)&bmp_core_header_ptr->bcHeight);
+        bmp_ptr->bitCounts =
+            GetWord_LSBFirst((uint8_t*)&bmp_core_header_ptr->bcBitCount);
+        bmp_ptr->compress_flag = BMP_RGB;
+        bmp_ptr->imgTB_flag = FALSE;
+      } break;
+      case kBmpInfoHeaderSize: {
+        BmpInfoHeaderPtr bmp_info_header_ptr = NULL;
+        if (bmp_read_data(bmp_ptr, (uint8_t**)&bmp_info_header_ptr,
+                          bmp_ptr->img_ifh_size) == NULL) {
+          bmp_ptr->skip_size = skip_size_org;
+          return 2;
+        }
+        bmp_ptr->width =
+            GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biWidth);
+        bmp_ptr->height =
+            GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biHeight);
+        bmp_ptr->bitCounts =
+            GetWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biBitCount);
+        bmp_ptr->compress_flag =
+            GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biCompression);
+        bmp_ptr->color_used =
+            GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biClrUsed);
+        bmp_ptr->dpi_x = (int32_t)GetDWord_LSBFirst(
+            (uint8_t*)&bmp_info_header_ptr->biXPelsPerMeter);
+        bmp_ptr->dpi_y = (int32_t)GetDWord_LSBFirst(
+            (uint8_t*)&bmp_info_header_ptr->biYPelsPerMeter);
+        if (bmp_ptr->height < 0) {
+          bmp_ptr->height = -bmp_ptr->height;
+          bmp_ptr->imgTB_flag = TRUE;
+        }
+      } break;
+      default: {
+        if (bmp_ptr->img_ifh_size >
+            std::min(kBmpInfoHeaderSize, sizeof(BmpInfoHeader))) {
+          BmpInfoHeaderPtr bmp_info_header_ptr = NULL;
+          if (bmp_read_data(bmp_ptr, (uint8_t**)&bmp_info_header_ptr,
+                            bmp_ptr->img_ifh_size) == NULL) {
+            bmp_ptr->skip_size = skip_size_org;
+            return 2;
+          }
+          FX_WORD biPlanes;
+          bmp_ptr->width =
+              GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biWidth);
+          bmp_ptr->height =
+              GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biHeight);
+          bmp_ptr->bitCounts =
+              GetWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biBitCount);
+          bmp_ptr->compress_flag =
+              GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biCompression);
+          bmp_ptr->color_used =
+              GetDWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biClrUsed);
+          biPlanes = GetWord_LSBFirst((uint8_t*)&bmp_info_header_ptr->biPlanes);
+          bmp_ptr->dpi_x = GetDWord_LSBFirst(
+              (uint8_t*)&bmp_info_header_ptr->biXPelsPerMeter);
+          bmp_ptr->dpi_y = GetDWord_LSBFirst(
+              (uint8_t*)&bmp_info_header_ptr->biYPelsPerMeter);
+          if (bmp_ptr->height < 0) {
+            bmp_ptr->height = -bmp_ptr->height;
+            bmp_ptr->imgTB_flag = TRUE;
+          }
+          if (bmp_ptr->compress_flag == BMP_RGB && biPlanes == 1 &&
+              bmp_ptr->color_used == 0) {
+            break;
+          }
+        }
+        bmp_error(bmp_ptr, "Unsupported Bmp File");
+        return 0;
+      }
+    }
+    ASSERT(bmp_ptr->width > 0);
+    ASSERT(bmp_ptr->compress_flag <= BMP_BITFIELDS);
+    switch (bmp_ptr->bitCounts) {
+      case 1:
+      case 4:
+      case 8:
+      case 16:
+      case 24: {
+        if (bmp_ptr->color_used > ((FX_DWORD)1) << bmp_ptr->bitCounts) {
+          bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+          return 0;
+        }
+      }
+      case 32: {
+        if (bmp_ptr->width <= 0 || bmp_ptr->compress_flag > BMP_BITFIELDS) {
+          bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+          return 0;
+        }
+      } break;
+      default:
+        bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+        return 0;
+    }
+    bmp_ptr->src_row_bytes = BMP_WIDTHBYTES(bmp_ptr->width, bmp_ptr->bitCounts);
+    switch (bmp_ptr->bitCounts) {
+      case 1:
+      case 4:
+      case 8:
+        bmp_ptr->out_row_bytes = BMP_WIDTHBYTES(bmp_ptr->width, 8);
+        bmp_ptr->components = 1;
+        break;
+      case 16:
+      case 24:
+        bmp_ptr->out_row_bytes = BMP_WIDTHBYTES(bmp_ptr->width, 24);
+        bmp_ptr->components = 3;
+        break;
+      case 32:
+        bmp_ptr->out_row_bytes = bmp_ptr->src_row_bytes;
+        bmp_ptr->components = 4;
+        break;
+    }
+    FX_Free(bmp_ptr->out_row_buffer);
+    bmp_ptr->out_row_buffer = FX_Alloc(uint8_t, bmp_ptr->out_row_bytes);
+    FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
+    bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_PAL);
+  }
+  if (bmp_ptr->decode_status == BMP_D_STATUS_PAL) {
+    skip_size_org = bmp_ptr->skip_size;
+    if (bmp_ptr->compress_flag == BMP_BITFIELDS) {
+      if (bmp_ptr->bitCounts != 16 && bmp_ptr->bitCounts != 32) {
+        bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+        return 0;
+      }
+      FX_DWORD* mask;
+      if (bmp_read_data(bmp_ptr, (uint8_t**)&mask, 3 * sizeof(FX_DWORD)) ==
+          NULL) {
+        bmp_ptr->skip_size = skip_size_org;
+        return 2;
+      }
+      bmp_ptr->mask_red = GetDWord_LSBFirst((uint8_t*)&mask[0]);
+      bmp_ptr->mask_green = GetDWord_LSBFirst((uint8_t*)&mask[1]);
+      bmp_ptr->mask_blue = GetDWord_LSBFirst((uint8_t*)&mask[2]);
+      if (bmp_ptr->mask_red & bmp_ptr->mask_green ||
+          bmp_ptr->mask_red & bmp_ptr->mask_blue ||
+          bmp_ptr->mask_green & bmp_ptr->mask_blue) {
+        bmp_error(bmp_ptr, "The Bitfield Bmp File Is Corrupt");
+        return 0;
+      }
+      if (bmp_ptr->bmp_header_ptr->bfOffBits < 26 + bmp_ptr->img_ifh_size) {
+        bmp_ptr->bmp_header_ptr->bfOffBits = 26 + bmp_ptr->img_ifh_size;
+      }
+      bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA_PRE);
+      return 1;
+    } else if (bmp_ptr->bitCounts == 16) {
+      bmp_ptr->mask_red = 0x7C00;
+      bmp_ptr->mask_green = 0x03E0;
+      bmp_ptr->mask_blue = 0x001F;
+    }
+    bmp_ptr->pal_num = 0;
+    if (bmp_ptr->bitCounts < 16) {
+      bmp_ptr->pal_num = 1 << bmp_ptr->bitCounts;
+      if (bmp_ptr->color_used != 0) {
+        bmp_ptr->pal_num = bmp_ptr->color_used;
+      }
+      uint8_t* src_pal_ptr = NULL;
+      FX_DWORD src_pal_size = bmp_ptr->pal_num * (bmp_ptr->pal_type ? 3 : 4);
+      if (bmp_read_data(bmp_ptr, (uint8_t**)&src_pal_ptr, src_pal_size) ==
+          NULL) {
+        bmp_ptr->skip_size = skip_size_org;
+        return 2;
+      }
+      FX_Free(bmp_ptr->pal_ptr);
+      bmp_ptr->pal_ptr = FX_Alloc(FX_DWORD, bmp_ptr->pal_num);
+      int32_t src_pal_index = 0;
+      if (bmp_ptr->pal_type == BMP_PAL_OLD) {
+        while (src_pal_index < bmp_ptr->pal_num) {
+          bmp_ptr->pal_ptr[src_pal_index++] = BMP_PAL_ENCODE(
+              0x00, src_pal_ptr[2], src_pal_ptr[1], src_pal_ptr[0]);
+          src_pal_ptr += 3;
+        }
+      } else {
+        while (src_pal_index < bmp_ptr->pal_num) {
+          bmp_ptr->pal_ptr[src_pal_index++] = BMP_PAL_ENCODE(
+              src_pal_ptr[3], src_pal_ptr[2], src_pal_ptr[1], src_pal_ptr[0]);
+          src_pal_ptr += 4;
+        }
+      }
+    }
+    if (bmp_ptr->bmp_header_ptr->bfOffBits <
+        14 + bmp_ptr->img_ifh_size +
+            bmp_ptr->pal_num * (bmp_ptr->pal_type ? 3 : 4)) {
+      bmp_ptr->bmp_header_ptr->bfOffBits =
+          14 + bmp_ptr->img_ifh_size +
+          bmp_ptr->pal_num * (bmp_ptr->pal_type ? 3 : 4);
+    }
+    bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA_PRE);
+  }
+  return 1;
+}
+int32_t bmp_decode_image(bmp_decompress_struct_p bmp_ptr) {
+  if (bmp_ptr->decode_status == BMP_D_STATUS_DATA_PRE) {
+    bmp_ptr->avail_in = 0;
+    if (!bmp_ptr->bmp_get_data_position_fn(
+            bmp_ptr, bmp_ptr->bmp_header_ptr->bfOffBits)) {
+      bmp_ptr->decode_status = BMP_D_STATUS_TAIL;
+      bmp_error(bmp_ptr, "The Bmp File Is Corrupt, Unexpected Stream Offset");
+      return 0;
+    }
+    bmp_ptr->row_num = 0;
+    bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA);
+  }
+  if (bmp_ptr->decode_status == BMP_D_STATUS_DATA) {
+    switch (bmp_ptr->compress_flag) {
+      case BMP_RGB:
+      case BMP_BITFIELDS:
+        return bmp_decode_rgb(bmp_ptr);
+      case BMP_RLE8:
+        return bmp_decode_rle8(bmp_ptr);
+      case BMP_RLE4:
+        return bmp_decode_rle4(bmp_ptr);
+    }
+  }
+  bmp_error(bmp_ptr, "Any Uncontrol Error");
+  return 0;
+}
+int32_t bmp_decode_rgb(bmp_decompress_struct_p bmp_ptr) {
+  uint8_t* row_buf = bmp_ptr->out_row_buffer;
+  uint8_t* des_buf = NULL;
+  while (bmp_ptr->row_num < bmp_ptr->height) {
+    if (bmp_read_data(bmp_ptr, &des_buf, bmp_ptr->src_row_bytes) == NULL) {
+      return 2;
+    }
+    bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA);
+    switch (bmp_ptr->bitCounts) {
+      case 1: {
+        for (int32_t col = 0; col < bmp_ptr->width; col++) {
+          *row_buf++ = des_buf[col >> 3] & (0x80 >> (col % 8)) ? 0x01 : 0x00;
+        }
+      } break;
+      case 4: {
+        for (int32_t col = 0; col < bmp_ptr->width; col++) {
+          *row_buf++ = (col & 0x01) ? (des_buf[col >> 1] & 0x0F)
+                                    : ((des_buf[col >> 1] & 0xF0) >> 4);
+        }
+      } break;
+      case 16: {
+        FX_WORD* buf = (FX_WORD*)des_buf;
+        uint8_t blue_bits = 0;
+        uint8_t green_bits = 0;
+        uint8_t red_bits = 0;
+        for (int32_t i = 0; i < 16; i++) {
+          if ((bmp_ptr->mask_blue >> i) & 0x01) {
+            blue_bits++;
+          }
+          if ((bmp_ptr->mask_green >> i) & 0x01) {
+            green_bits++;
+          }
+          if ((bmp_ptr->mask_red >> i) & 0x01) {
+            red_bits++;
+          }
+        }
+        green_bits += blue_bits;
+        red_bits += green_bits;
+        blue_bits = 8 - blue_bits;
+        green_bits -= 8;
+        red_bits -= 8;
+        for (int32_t col = 0; col < bmp_ptr->width; col++) {
+          *buf = GetWord_LSBFirst((uint8_t*)buf);
+          *row_buf++ = (uint8_t)((*buf & bmp_ptr->mask_blue) << blue_bits);
+          *row_buf++ = (uint8_t)((*buf & bmp_ptr->mask_green) >> green_bits);
+          *row_buf++ = (uint8_t)((*buf++ & bmp_ptr->mask_red) >> red_bits);
+        }
+      } break;
+      case 8:
+      case 24:
+      case 32:
+        FXSYS_memcpy(bmp_ptr->out_row_buffer, des_buf, bmp_ptr->src_row_bytes);
+        break;
+    }
+    row_buf = bmp_ptr->out_row_buffer;
+    bmp_ptr->bmp_get_row_fn(bmp_ptr,
+                            bmp_ptr->imgTB_flag
+                                ? bmp_ptr->row_num++
+                                : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
+                            bmp_ptr->out_row_buffer);
+  }
+  bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
+  return 1;
+}
+int32_t bmp_decode_rle8(bmp_decompress_struct_p bmp_ptr) {
+  uint8_t* first_byte_ptr = NULL;
+  uint8_t* second_byte_ptr = NULL;
+  bmp_ptr->col_num = 0;
+  while (TRUE) {
+    FX_DWORD skip_size_org = bmp_ptr->skip_size;
+    if (bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) {
+      return 2;
+    }
+    switch (*first_byte_ptr) {
+      case RLE_MARKER: {
+        if (bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) {
+          bmp_ptr->skip_size = skip_size_org;
+          return 2;
+        }
+        switch (*first_byte_ptr) {
+          case RLE_EOL: {
+            if (bmp_ptr->row_num >= bmp_ptr->height) {
+              bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
+              bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+              return 0;
+            }
+            bmp_ptr->bmp_get_row_fn(
+                bmp_ptr, bmp_ptr->imgTB_flag
+                             ? bmp_ptr->row_num++
+                             : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
+                bmp_ptr->out_row_buffer);
+            bmp_ptr->col_num = 0;
+            FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
+            bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA);
+            continue;
+          }
+          case RLE_EOI: {
+            if (bmp_ptr->row_num < bmp_ptr->height) {
+              bmp_ptr->bmp_get_row_fn(
+                  bmp_ptr, bmp_ptr->imgTB_flag
+                               ? bmp_ptr->row_num++
+                               : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
+                  bmp_ptr->out_row_buffer);
+            }
+            bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
+            return 1;
+          }
+          case RLE_DELTA: {
+            uint8_t* delta_ptr;
+            if (bmp_read_data(bmp_ptr, &delta_ptr, 2) == NULL) {
+              bmp_ptr->skip_size = skip_size_org;
+              return 2;
+            }
+            bmp_ptr->col_num += (int32_t)delta_ptr[0];
+            int32_t bmp_row_num_next = bmp_ptr->row_num + (int32_t)delta_ptr[1];
+            if (bmp_ptr->col_num >= bmp_ptr->out_row_bytes ||
+                bmp_row_num_next >= bmp_ptr->height) {
+              bmp_error(bmp_ptr, "The Bmp File Is Corrupt Or Not Supported");
+              return 0;
+            }
+            while (bmp_ptr->row_num < bmp_row_num_next) {
+              FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
+              bmp_ptr->bmp_get_row_fn(
+                  bmp_ptr, bmp_ptr->imgTB_flag
+                               ? bmp_ptr->row_num++
+                               : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
+                  bmp_ptr->out_row_buffer);
+            }
+          } break;
+          default: {
+            if ((int32_t)(*first_byte_ptr) >
+                bmp_ptr->src_row_bytes - bmp_ptr->col_num) {
+              bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+              return 0;
+            }
+            if (bmp_read_data(bmp_ptr, &second_byte_ptr,
+                              *first_byte_ptr & 1 ? *first_byte_ptr + 1
+                                                  : *first_byte_ptr) == NULL) {
+              bmp_ptr->skip_size = skip_size_org;
+              return 2;
+            }
+            FXSYS_memcpy(bmp_ptr->out_row_buffer + bmp_ptr->col_num,
+                         second_byte_ptr, *first_byte_ptr);
+            bmp_ptr->col_num += (int32_t)(*first_byte_ptr);
+          }
+        }
+      } break;
+      default: {
+        if (bmp_read_data(bmp_ptr, &second_byte_ptr, 1) == NULL) {
+          bmp_ptr->skip_size = skip_size_org;
+          return 2;
+        }
+        if ((int32_t)(*first_byte_ptr) >
+            bmp_ptr->src_row_bytes - bmp_ptr->col_num) {
+          bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+          return 0;
+        }
+        FXSYS_memset(bmp_ptr->out_row_buffer + bmp_ptr->col_num,
+                     *second_byte_ptr, *first_byte_ptr);
+        bmp_ptr->col_num += (int32_t)(*first_byte_ptr);
+      }
+    }
+  }
+  bmp_error(bmp_ptr, "Any Uncontrol Error");
+  return 0;
+}
+int32_t bmp_decode_rle4(bmp_decompress_struct_p bmp_ptr) {
+  uint8_t* first_byte_ptr = NULL;
+  uint8_t* second_byte_ptr = NULL;
+  bmp_ptr->col_num = 0;
+  while (TRUE) {
+    FX_DWORD skip_size_org = bmp_ptr->skip_size;
+    if (bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) {
+      return 2;
+    }
+    switch (*first_byte_ptr) {
+      case RLE_MARKER: {
+        if (bmp_read_data(bmp_ptr, &first_byte_ptr, 1) == NULL) {
+          bmp_ptr->skip_size = skip_size_org;
+          return 2;
+        }
+        switch (*first_byte_ptr) {
+          case RLE_EOL: {
+            if (bmp_ptr->row_num >= bmp_ptr->height) {
+              bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
+              bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+              return 0;
+            }
+            bmp_ptr->bmp_get_row_fn(
+                bmp_ptr, bmp_ptr->imgTB_flag
+                             ? bmp_ptr->row_num++
+                             : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
+                bmp_ptr->out_row_buffer);
+            bmp_ptr->col_num = 0;
+            FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
+            bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_DATA);
+            continue;
+          }
+          case RLE_EOI: {
+            if (bmp_ptr->row_num < bmp_ptr->height) {
+              bmp_ptr->bmp_get_row_fn(
+                  bmp_ptr, bmp_ptr->imgTB_flag
+                               ? bmp_ptr->row_num++
+                               : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
+                  bmp_ptr->out_row_buffer);
+            }
+            bmp_save_decoding_status(bmp_ptr, BMP_D_STATUS_TAIL);
+            return 1;
+          }
+          case RLE_DELTA: {
+            uint8_t* delta_ptr;
+            if (bmp_read_data(bmp_ptr, &delta_ptr, 2) == NULL) {
+              bmp_ptr->skip_size = skip_size_org;
+              return 2;
+            }
+            bmp_ptr->col_num += (int32_t)delta_ptr[0];
+            int32_t bmp_row_num_next = bmp_ptr->row_num + (int32_t)delta_ptr[1];
+            if (bmp_ptr->col_num >= bmp_ptr->out_row_bytes ||
+                bmp_row_num_next >= bmp_ptr->height) {
+              bmp_error(bmp_ptr, "The Bmp File Is Corrupt Or Not Supported");
+              return 0;
+            }
+            while (bmp_ptr->row_num < bmp_row_num_next) {
+              FXSYS_memset(bmp_ptr->out_row_buffer, 0, bmp_ptr->out_row_bytes);
+              bmp_ptr->bmp_get_row_fn(
+                  bmp_ptr, bmp_ptr->imgTB_flag
+                               ? bmp_ptr->row_num++
+                               : (bmp_ptr->height - 1 - bmp_ptr->row_num++),
+                  bmp_ptr->out_row_buffer);
+            }
+          } break;
+          default: {
+            uint8_t size = (uint8_t)(((FX_WORD)(*first_byte_ptr) + 1) >> 1);
+            if ((int32_t)*first_byte_ptr >=
+                bmp_ptr->out_row_bytes - bmp_ptr->col_num) {
+              if (size + (bmp_ptr->col_num >> 1) > bmp_ptr->src_row_bytes) {
+                bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+                return 0;
+              }
+              *first_byte_ptr = bmp_ptr->out_row_bytes - bmp_ptr->col_num - 1;
+            }
+            if (bmp_read_data(bmp_ptr, &second_byte_ptr,
+                              size & 1 ? size + 1 : size) == NULL) {
+              bmp_ptr->skip_size = skip_size_org;
+              return 2;
+            }
+            for (uint8_t i = 0; i < *first_byte_ptr; i++) {
+              if (i & 0x01) {
+                *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) =
+                    (*second_byte_ptr++ & 0x0F);
+              } else {
+                *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) =
+                    ((*second_byte_ptr & 0xF0) >> 4);
+              }
+            }
+          }
+        }
+      } break;
+      default: {
+        if (bmp_read_data(bmp_ptr, &second_byte_ptr, 1) == NULL) {
+          bmp_ptr->skip_size = skip_size_org;
+          return 2;
+        }
+        if ((int32_t)*first_byte_ptr >
+            bmp_ptr->out_row_bytes - bmp_ptr->col_num) {
+          uint8_t size = (uint8_t)(((FX_WORD)(*first_byte_ptr) + 1) >> 1);
+          if (size + (bmp_ptr->col_num >> 1) > bmp_ptr->src_row_bytes) {
+            bmp_error(bmp_ptr, "The Bmp File Is Corrupt");
+            return 0;
+          }
+          *first_byte_ptr = bmp_ptr->out_row_bytes - bmp_ptr->col_num - 1;
+        }
+        for (uint8_t i = 0; i < *first_byte_ptr; i++) {
+          if (i & 0x01) {
+            *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) =
+                (*second_byte_ptr & 0x0F);
+          } else {
+            *(bmp_ptr->out_row_buffer + bmp_ptr->col_num++) =
+                ((*second_byte_ptr & 0xF0) >> 4);
+          }
+        }
+      }
+    }
+  }
+  bmp_error(bmp_ptr, "Any Uncontrol Error");
+  return 0;
+}
+uint8_t* bmp_read_data(bmp_decompress_struct_p bmp_ptr,
+                       uint8_t** des_buf_pp,
+                       FX_DWORD data_size) {
+  if (bmp_ptr == NULL || bmp_ptr->avail_in < bmp_ptr->skip_size + data_size) {
+    return NULL;
+  }
+  *des_buf_pp = bmp_ptr->next_in + bmp_ptr->skip_size;
+  bmp_ptr->skip_size += data_size;
+  return *des_buf_pp;
+}
+void bmp_save_decoding_status(bmp_decompress_struct_p bmp_ptr, int32_t status) {
+  bmp_ptr->decode_status = status;
+  bmp_ptr->next_in += bmp_ptr->skip_size;
+  bmp_ptr->avail_in -= bmp_ptr->skip_size;
+  bmp_ptr->skip_size = 0;
+}
+void bmp_input_buffer(bmp_decompress_struct_p bmp_ptr,
+                      uint8_t* src_buf,
+                      FX_DWORD src_size) {
+  bmp_ptr->next_in = src_buf;
+  bmp_ptr->avail_in = src_size;
+  bmp_ptr->skip_size = 0;
+}
+FX_DWORD bmp_get_avail_input(bmp_decompress_struct_p bmp_ptr,
+                             uint8_t** avial_buf_ptr) {
+  if (avial_buf_ptr) {
+    *avial_buf_ptr = NULL;
+    if (bmp_ptr->avail_in > 0) {
+      *avial_buf_ptr = bmp_ptr->next_in;
+    }
+  }
+  return bmp_ptr->avail_in;
+}
+bmp_compress_struct_p bmp_create_compress() {
+  bmp_compress_struct_p bmp_ptr;
+  bmp_ptr = FX_Alloc(bmp_compress_struct, 1);
+  if (bmp_ptr) {
+    FXSYS_memset(bmp_ptr, 0, sizeof(bmp_compress_struct));
+  }
+  return bmp_ptr;
+}
+void bmp_destroy_compress(bmp_compress_struct_p bmp_ptr) {
+  if (bmp_ptr) {
+    if (bmp_ptr->src_free && bmp_ptr->src_buf) {
+      FX_Free(bmp_ptr->src_buf);
+    }
+    FX_Free(bmp_ptr);
+  }
+}
+static void WriteFileHeader(BmpFileHeaderPtr head_ptr, uint8_t* dst_buf) {
+  FX_DWORD offset;
+  offset = 0;
+  SetWord_LSBFirst(&dst_buf[offset], head_ptr->bfType);
+  offset += 2;
+  SetDWord_LSBFirst(&dst_buf[offset], head_ptr->bfSize);
+  offset += 4;
+  SetWord_LSBFirst(&dst_buf[offset], head_ptr->bfReserved1);
+  offset += 2;
+  SetWord_LSBFirst(&dst_buf[offset], head_ptr->bfReserved2);
+  offset += 2;
+  SetDWord_LSBFirst(&dst_buf[offset], head_ptr->bfOffBits);
+  offset += 4;
+}
+static void WriteInfoHeader(BmpInfoHeaderPtr info_head_ptr, uint8_t* dst_buf) {
+  FX_DWORD offset;
+  offset = sizeof(BmpFileHeader);
+  SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biSize);
+  offset += 4;
+  SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biWidth);
+  offset += 4;
+  SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biHeight);
+  offset += 4;
+  SetWord_LSBFirst(&dst_buf[offset], info_head_ptr->biPlanes);
+  offset += 2;
+  SetWord_LSBFirst(&dst_buf[offset], info_head_ptr->biBitCount);
+  offset += 2;
+  SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biCompression);
+  offset += 4;
+  SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biSizeImage);
+  offset += 4;
+  SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biXPelsPerMeter);
+  offset += 4;
+  SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biYPelsPerMeter);
+  offset += 4;
+  SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biClrUsed);
+  offset += 4;
+  SetDWord_LSBFirst(&dst_buf[offset], info_head_ptr->biClrImportant);
+  offset += 4;
+}
+static void bmp_encode_bitfields(bmp_compress_struct_p bmp_ptr,
+                                 uint8_t*& dst_buf,
+                                 FX_DWORD& dst_size) {
+  if (bmp_ptr->info_header.biBitCount != 16 &&
+      bmp_ptr->info_header.biBitCount != 32) {
+    return;
+  }
+  FX_DWORD size, dst_pos, i;
+  size = bmp_ptr->src_pitch * bmp_ptr->src_row *
+         bmp_ptr->info_header.biBitCount / 16;
+  dst_pos = bmp_ptr->file_header.bfOffBits;
+  dst_size += size;
+  dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size);
+  if (dst_buf == NULL) {
+    return;
+  }
+  FXSYS_memset(&dst_buf[dst_pos], 0, size);
+  FX_DWORD mask_red;
+  FX_DWORD mask_green;
+  FX_DWORD mask_blue;
+  mask_red = 0x7C00;
+  mask_green = 0x03E0;
+  mask_blue = 0x001F;
+  if (bmp_ptr->info_header.biCompression == BMP_BITFIELDS) {
+    if (bmp_ptr->bit_type == BMP_BIT_565) {
+      mask_red = 0xF800;
+      mask_green = 0x07E0;
+      mask_blue = 0x001F;
+    }
+    if (bmp_ptr->info_header.biBitCount == 32) {
+      mask_red = 0xFF0000;
+      mask_green = 0x00FF00;
+      mask_blue = 0x0000FF;
+    }
+    SetDWord_LSBFirst(&dst_buf[dst_pos], mask_red);
+    dst_pos += 4;
+    SetDWord_LSBFirst(&dst_buf[dst_pos], mask_green);
+    dst_pos += 4;
+    SetDWord_LSBFirst(&dst_buf[dst_pos], mask_blue);
+    dst_pos += 4;
+    bmp_ptr->file_header.bfOffBits = dst_pos;
+  }
+  uint8_t blue_bits = 0;
+  uint8_t green_bits = 0;
+  uint8_t red_bits = 0;
+  for (i = 0; i < bmp_ptr->info_header.biBitCount; i++) {
+    if ((mask_blue >> i) & 0x01) {
+      blue_bits++;
+    }
+    if ((mask_green >> i) & 0x01) {
+      green_bits++;
+    }
+    if ((mask_red >> i) & 0x01) {
+      red_bits++;
+    }
+  }
+  green_bits += blue_bits;
+  red_bits += green_bits;
+  blue_bits = 8 - blue_bits;
+  green_bits -= 8;
+  red_bits -= 8;
+  i = 0;
+  for (int32_t row_num = bmp_ptr->src_row - 1; row_num > -1; row_num--, i = 0) {
+    while (i < bmp_ptr->src_width * bmp_ptr->src_bpp / 8) {
+      uint8_t b = bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch + i++];
+      uint8_t g = bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch + i++];
+      uint8_t r = bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch + i++];
+      if (bmp_ptr->src_bpp == 32) {
+        i++;
+      }
+      FX_DWORD pix_val = 0;
+      pix_val |= (b >> blue_bits) & mask_blue;
+      pix_val |= (g << green_bits) & mask_green;
+      pix_val |= (r << red_bits) & mask_red;
+      if (bmp_ptr->info_header.biBitCount == 16) {
+        SetWord_LSBFirst(&dst_buf[dst_pos], pix_val);
+        dst_pos += 2;
+      } else {
+        SetDWord_LSBFirst(&dst_buf[dst_pos], pix_val);
+        dst_pos += 4;
+      }
+    }
+  }
+  dst_size = dst_pos;
+}
+
+static void bmp_encode_rgb(bmp_compress_struct_p bmp_ptr,
+                           uint8_t*& dst_buf,
+                           FX_DWORD& dst_size) {
+  if (bmp_ptr->info_header.biBitCount == 16) {
+    bmp_encode_bitfields(bmp_ptr, dst_buf, dst_size);
+    return;
+  }
+  FX_DWORD size, dst_pos;
+  FX_DWORD dst_pitch =
+      (bmp_ptr->src_width * bmp_ptr->info_header.biBitCount + 31) / 32 * 4;
+  size = dst_pitch * bmp_ptr->src_row;
+  dst_pos = bmp_ptr->file_header.bfOffBits;
+  dst_size += size;
+  dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size);
+  if (dst_buf == NULL) {
+    return;
+  }
+  FXSYS_memset(&dst_buf[dst_pos], 0, size);
+  for (int32_t row_num = bmp_ptr->src_row - 1; row_num > -1; row_num--) {
+    FXSYS_memcpy(&dst_buf[dst_pos],
+                 &bmp_ptr->src_buf[row_num * bmp_ptr->src_pitch],
+                 bmp_ptr->src_pitch);
+    dst_pos += dst_pitch;
+  }
+  dst_size = dst_pos;
+}
+static uint8_t bmp_rle8_search(const uint8_t* buf, int32_t len) {
+  uint8_t num;
+  num = 1;
+  while (num < len) {
+    if (buf[num - 1] != buf[num] || num == 0xFF) {
+      break;
+    }
+    num++;
+  }
+  return num;
+}
+static void bmp_encode_rle8(bmp_compress_struct_p bmp_ptr,
+                            uint8_t*& dst_buf,
+                            FX_DWORD& dst_size) {
+  FX_DWORD size, dst_pos, index;
+  uint8_t rle[2] = {0};
+  size = bmp_ptr->src_pitch * bmp_ptr->src_row * 2;
+  dst_pos = bmp_ptr->file_header.bfOffBits;
+  dst_size += size;
+  dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size);
+  if (dst_buf == NULL) {
+    return;
+  }
+  FXSYS_memset(&dst_buf[dst_pos], 0, size);
+  for (int32_t row_num = bmp_ptr->src_row - 1, i = 0; row_num > -1;) {
+    index = row_num * bmp_ptr->src_pitch;
+    rle[0] = bmp_rle8_search(&bmp_ptr->src_buf[index + i], size - index - i);
+    rle[1] = bmp_ptr->src_buf[index + i];
+    if (i + rle[0] >= (int32_t)bmp_ptr->src_pitch) {
+      rle[0] = uint8_t(bmp_ptr->src_pitch - i);
+      if (rle[0]) {
+        dst_buf[dst_pos++] = rle[0];
+        dst_buf[dst_pos++] = rle[1];
+      }
+      dst_buf[dst_pos++] = RLE_MARKER;
+      dst_buf[dst_pos++] = RLE_EOL;
+      i = 0;
+      row_num--;
+    } else {
+      i += rle[0];
+      dst_buf[dst_pos++] = rle[0];
+      dst_buf[dst_pos++] = rle[1];
+    }
+  }
+  dst_buf[dst_pos++] = RLE_MARKER;
+  dst_buf[dst_pos++] = RLE_EOI;
+  dst_size = dst_pos;
+}
+static uint8_t bmp_rle4_search(const uint8_t* buf, int32_t len) {
+  uint8_t num;
+  num = 2;
+  while (num < len) {
+    if (buf[num - 2] != buf[num] || num == 0xFF) {
+      break;
+    }
+    num++;
+  }
+  return num;
+}
+static void bmp_encode_rle4(bmp_compress_struct_p bmp_ptr,
+                            uint8_t*& dst_buf,
+                            FX_DWORD& dst_size) {
+  FX_DWORD size, dst_pos, index;
+  uint8_t rle[2] = {0};
+  size = bmp_ptr->src_pitch * bmp_ptr->src_row;
+  dst_pos = bmp_ptr->file_header.bfOffBits;
+  dst_size += size;
+  dst_buf = FX_Realloc(uint8_t, dst_buf, dst_size);
+  if (dst_buf == NULL) {
+    return;
+  }
+  FXSYS_memset(&dst_buf[dst_pos], 0, size);
+  for (int32_t row_num = bmp_ptr->src_row - 1, i = 0; row_num > -1;
+       rle[1] = 0) {
+    index = row_num * bmp_ptr->src_pitch;
+    rle[0] = bmp_rle4_search(&bmp_ptr->src_buf[index + i], size - index - i);
+    rle[1] |= (bmp_ptr->src_buf[index + i] & 0x0f) << 4;
+    rle[1] |= bmp_ptr->src_buf[index + i + 1] & 0x0f;
+    if (i + rle[0] >= (int32_t)bmp_ptr->src_pitch) {
+      rle[0] = uint8_t(bmp_ptr->src_pitch - i);
+      if (rle[0]) {
+        dst_buf[dst_pos++] = rle[0];
+        dst_buf[dst_pos++] = rle[1];
+      }
+      dst_buf[dst_pos++] = RLE_MARKER;
+      dst_buf[dst_pos++] = RLE_EOL;
+      i = 0;
+      row_num--;
+    } else {
+      i += rle[0];
+      dst_buf[dst_pos++] = rle[0];
+      dst_buf[dst_pos++] = rle[1];
+    }
+  }
+  dst_buf[dst_pos++] = RLE_MARKER;
+  dst_buf[dst_pos++] = RLE_EOI;
+  dst_size = dst_pos;
+}
+FX_BOOL bmp_encode_image(bmp_compress_struct_p bmp_ptr,
+                         uint8_t*& dst_buf,
+                         FX_DWORD& dst_size) {
+  FX_DWORD head_size = sizeof(BmpFileHeader) + sizeof(BmpInfoHeader);
+  FX_DWORD pal_size = sizeof(FX_DWORD) * bmp_ptr->pal_num;
+  if (bmp_ptr->info_header.biClrUsed > 0 &&
+      bmp_ptr->info_header.biClrUsed < bmp_ptr->pal_num) {
+    pal_size = sizeof(FX_DWORD) * bmp_ptr->info_header.biClrUsed;
+  }
+  dst_size = head_size + sizeof(FX_DWORD) * bmp_ptr->pal_num;
+  dst_buf = FX_TryAlloc(uint8_t, dst_size);
+  if (dst_buf == NULL) {
+    return FALSE;
+  }
+  FXSYS_memset(dst_buf, 0, dst_size);
+  bmp_ptr->file_header.bfOffBits = head_size;
+  if (bmp_ptr->pal_ptr && pal_size) {
+    FXSYS_memcpy(&dst_buf[head_size], bmp_ptr->pal_ptr, pal_size);
+    bmp_ptr->file_header.bfOffBits += pal_size;
+  }
+  WriteInfoHeader(&bmp_ptr->info_header, dst_buf);
+  switch (bmp_ptr->info_header.biCompression) {
+    case BMP_RGB:
+      bmp_encode_rgb(bmp_ptr, dst_buf, dst_size);
+      break;
+    case BMP_BITFIELDS:
+      bmp_encode_bitfields(bmp_ptr, dst_buf, dst_size);
+      break;
+    case BMP_RLE8:
+      bmp_encode_rle8(bmp_ptr, dst_buf, dst_size);
+      break;
+    case BMP_RLE4:
+      bmp_encode_rle4(bmp_ptr, dst_buf, dst_size);
+      break;
+    default:
+      break;
+  }
+  bmp_ptr->file_header.bfSize = dst_size;
+  WriteFileHeader(&bmp_ptr->file_header, dst_buf);
+  return TRUE;
+}