automake commit without merge history

grub-core/video/fb/fbfill.c

@@ -0,0 +1,177 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2008  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* SPECIAL NOTES!
+
+   Please note following when reading the code below:
+
+   - In this driver we assume that every memory can be accessed by same memory
+     bus.  If there are different address spaces do not use this code as a base
+     code for other archs.
+
+   - Every function in this code assumes that bounds checking has been done in
+     previous phase and they are opted out in here.  */
+
+#include <grub/video_fb.h>
+#include <grub/fbfill.h>
+#include <grub/fbutil.h>
+#include <grub/types.h>
+#include <grub/video.h>
+
+/* Generic filler that works for every supported mode.  */
+void
+grub_video_fbfill (struct grub_video_fbblit_info *dst,
+		   grub_video_color_t color, int x, int y,
+		   int width, int height)
+{
+  int i;
+  int j;
+
+  for (j = 0; j < height; j++)
+    for (i = 0; i < width; i++)
+      set_pixel (dst, x + i, y + j, color);
+}
+
+/* Optimized filler for direct color 32 bit modes.  It is assumed that color
+   is already mapped to destination format.  */
+void
+grub_video_fbfill_direct32 (struct grub_video_fbblit_info *dst,
+			    grub_video_color_t color, int x, int y,
+			    int width, int height)
+{
+  int i;
+  int j;
+  grub_uint32_t *dstptr;
+  grub_size_t rowskip;
+
+  /* Calculate the number of bytes to advance from the end of one line
+     to the beginning of the next line.  */
+  rowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
+
+  /* Get the start address.  */
+  dstptr = (grub_uint32_t *) grub_video_fb_get_video_ptr (dst, x, y);
+
+  for (j = 0; j < height; j++)
+    {
+      for (i = 0; i < width; i++)
+        *dstptr++ = color;
+
+      /* Advance the dest pointer to the right location on the next line.  */
+      dstptr = (grub_uint32_t *) (((char *) dstptr) + rowskip);
+    }
+}
+
+/* Optimized filler for direct color 24 bit modes.  It is assumed that color
+   is already mapped to destination format.  */
+void
+grub_video_fbfill_direct24 (struct grub_video_fbblit_info *dst,
+			    grub_video_color_t color, int x, int y,
+			    int width, int height)
+{
+  int i;
+  int j;
+  grub_size_t rowskip;
+  grub_uint8_t *dstptr;
+  grub_uint8_t fill0 = (grub_uint8_t)((color >> 0) & 0xFF);
+  grub_uint8_t fill1 = (grub_uint8_t)((color >> 8) & 0xFF);
+  grub_uint8_t fill2 = (grub_uint8_t)((color >> 16) & 0xFF);
+
+  /* Calculate the number of bytes to advance from the end of one line
+     to the beginning of the next line.  */
+  rowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
+
+  /* Get the start address.  */
+  dstptr = (grub_uint8_t *) grub_video_fb_get_video_ptr (dst, x, y);
+
+  for (j = 0; j < height; j++)
+    {
+      for (i = 0; i < width; i++)
+        {
+          *dstptr++ = fill0;
+          *dstptr++ = fill1;
+          *dstptr++ = fill2;
+        }
+
+      /* Advance the dest pointer to the right location on the next line.  */
+      dstptr += rowskip;
+    }
+}
+
+/* Optimized filler for direct color 16 bit modes.  It is assumed that color
+   is already mapped to destination format.  */
+void
+grub_video_fbfill_direct16 (struct grub_video_fbblit_info *dst,
+			    grub_video_color_t color, int x, int y,
+			    int width, int height)
+{
+  int i;
+  int j;
+  grub_size_t rowskip;
+  grub_uint8_t *dstptr;
+  grub_uint8_t fill0 = (grub_uint8_t)((color >> 0) & 0xFF);
+  grub_uint8_t fill1 = (grub_uint8_t)((color >> 8) & 0xFF);
+
+  /* Calculate the number of bytes to advance from the end of one line
+     to the beginning of the next line.  */
+  rowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
+
+  /* Get the start address.  */
+  dstptr = (grub_uint8_t *) grub_video_fb_get_video_ptr (dst, x, y);
+
+  for (j = 0; j < height; j++)
+    {
+      for (i = 0; i < width; i++)
+        {
+          *dstptr++ = fill0;
+          *dstptr++ = fill1;
+        }
+
+      /* Advance the dest pointer to the right location on the next line.  */
+      dstptr += rowskip;
+    }
+}
+
+/* Optimized filler for index color.  It is assumed that color
+   is already mapped to destination format.  */
+void
+grub_video_fbfill_direct8 (struct grub_video_fbblit_info *dst,
+			   grub_video_color_t color, int x, int y,
+			   int width, int height)
+{
+  int i;
+  int j;
+  grub_size_t rowskip;
+  grub_uint8_t *dstptr;
+  grub_uint8_t fill = (grub_uint8_t)color & 0xFF;
+
+  /* Calculate the number of bytes to advance from the end of one line
+     to the beginning of the next line.  */
+  rowskip = dst->mode_info->pitch - dst->mode_info->bytes_per_pixel * width;
+
+  /* Get the start address.  */
+  dstptr = (grub_uint8_t *) grub_video_fb_get_video_ptr (dst, x, y);
+
+  for (j = 0; j < height; j++)
+    {
+      for (i = 0; i < width; i++)
+        *dstptr++ = fill;
+
+      /* Advance the dest pointer to the right location on the next line.  */
+      dstptr += rowskip;
+    }
+}

grub-core/video/fb/fbutil.c

@@ -0,0 +1,178 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2006,2007,2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* SPECIAL NOTES!
+
+   Please note following when reading the code below:
+
+   - In this driver we assume that every memory can be accessed by same memory
+     bus.  If there are different address spaces do not use this code as a base
+     code for other archs.
+
+   - Every function in this code assumes that bounds checking has been done in
+     previous phase and they are opted out in here.  */
+
+#include <grub/fbutil.h>
+#include <grub/types.h>
+#include <grub/video.h>
+
+grub_uint8_t *
+grub_video_fb_get_video_ptr (struct grub_video_fbblit_info *source,
+              unsigned int x, unsigned int y)
+{
+  grub_uint8_t *ptr = 0;
+
+  switch (source->mode_info->bpp)
+    {
+    case 32:
+      ptr = source->data + y * source->mode_info->pitch + x * 4;
+      break;
+
+    case 24:
+      ptr = source->data + y * source->mode_info->pitch + x * 3;
+      break;
+
+    case 16:
+    case 15:
+      ptr = source->data + y * source->mode_info->pitch + x * 2;
+      break;
+
+    case 8:
+      ptr = source->data + y * source->mode_info->pitch + x;
+      break;
+
+    case 1:
+      /* For 1-bit bitmaps, addressing needs to be done at the bit level
+         and it doesn't make sense, in general, to ask for a pointer
+         to a particular pixel's data.  */
+      break;
+    }
+
+  return ptr;
+}
+
+grub_video_color_t
+get_pixel (struct grub_video_fbblit_info *source,
+           unsigned int x, unsigned int y)
+{
+  grub_video_color_t color = 0;
+
+  switch (source->mode_info->bpp)
+    {
+    case 32:
+      color = *(grub_uint32_t *)grub_video_fb_get_video_ptr (source, x, y);
+      break;
+
+    case 24:
+      {
+        grub_uint8_t *ptr;
+        ptr = grub_video_fb_get_video_ptr (source, x, y);
+        color = ptr[0] | (ptr[1] << 8) | (ptr[2] << 16);
+      }
+      break;
+
+    case 16:
+    case 15:
+      color = *(grub_uint16_t *)grub_video_fb_get_video_ptr (source, x, y);
+      break;
+
+    case 8:
+      color = *(grub_uint8_t *)grub_video_fb_get_video_ptr (source, x, y);
+      break;
+
+    case 1:
+      if (source->mode_info->blit_format == GRUB_VIDEO_BLIT_FORMAT_1BIT_PACKED)
+        {
+          int bit_index = y * source->mode_info->width + x;
+          grub_uint8_t *ptr = source->data + bit_index / 8;
+          int bit_pos = 7 - bit_index % 8;
+          color = (*ptr >> bit_pos) & 0x01;
+        }
+      break;
+
+    default:
+      break;
+    }
+
+  return color;
+}
+
+void
+set_pixel (struct grub_video_fbblit_info *source,
+           unsigned int x, unsigned int y, grub_video_color_t color)
+{
+  switch (source->mode_info->bpp)
+    {
+    case 32:
+      {
+        grub_uint32_t *ptr;
+
+        ptr = (grub_uint32_t *)grub_video_fb_get_video_ptr (source, x, y);
+
+        *ptr = color;
+      }
+      break;
+
+    case 24:
+      {
+        grub_uint8_t *ptr;
+        grub_uint8_t *colorptr = (grub_uint8_t *)&color;
+
+        ptr = grub_video_fb_get_video_ptr (source, x, y);
+
+        ptr[0] = colorptr[0];
+        ptr[1] = colorptr[1];
+        ptr[2] = colorptr[2];
+      }
+      break;
+
+    case 16:
+    case 15:
+      {
+        grub_uint16_t *ptr;
+
+        ptr = (grub_uint16_t *)grub_video_fb_get_video_ptr (source, x, y);
+
+        *ptr = (grub_uint16_t) (color & 0xFFFF);
+      }
+      break;
+
+    case 8:
+      {
+        grub_uint8_t *ptr;
+
+        ptr = (grub_uint8_t *)grub_video_fb_get_video_ptr (source, x, y);
+
+        *ptr = (grub_uint8_t) (color & 0xFF);
+      }
+      break;
+
+    case 1:
+      if (source->mode_info->blit_format == GRUB_VIDEO_BLIT_FORMAT_1BIT_PACKED)
+        {
+          int bit_index = y * source->mode_info->width + x;
+          grub_uint8_t *ptr = source->data + bit_index / 8;
+          int bit_pos = 7 - bit_index % 8;
+          *ptr = (*ptr & ~(1 << bit_pos)) | ((color & 0x01) << bit_pos);
+        }
+      break;
+
+    default:
+      break;
+    }
+}