+// SPDX-License-Identifier: GPL-2.0+
/*
* EFI application disk support
*
* Copyright (c) 2016 Alexander Graf
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
return EFI_EXIT(EFI_SUCCESS);
}
-static inline struct efi_gop_pixel efi_vid16_to_blt_col(u16 vid)
+static __always_inline struct efi_gop_pixel efi_vid16_to_blt_col(u16 vid)
{
struct efi_gop_pixel blt = {
.reserved = 0,
return blt;
}
-static inline u16 efi_blt_col_to_vid16(struct efi_gop_pixel *blt)
+static __always_inline u16 efi_blt_col_to_vid16(struct efi_gop_pixel *blt)
{
return (u16)(blt->red >> 3) << 11 |
(u16)(blt->green >> 2) << 5 |
(u16)(blt->blue >> 3);
}
-efi_status_t EFIAPI gop_blt(struct efi_gop *this, struct efi_gop_pixel *buffer,
- u32 operation, efi_uintn_t sx,
- efi_uintn_t sy, efi_uintn_t dx,
- efi_uintn_t dy, efi_uintn_t width,
- efi_uintn_t height, efi_uintn_t delta)
+static __always_inline efi_status_t gop_blt_int(struct efi_gop *this,
+ struct efi_gop_pixel *bufferp,
+ u32 operation, efi_uintn_t sx,
+ efi_uintn_t sy, efi_uintn_t dx,
+ efi_uintn_t dy,
+ efi_uintn_t width,
+ efi_uintn_t height,
+ efi_uintn_t delta,
+ efi_uintn_t vid_bpp)
{
struct efi_gop_obj *gopobj = container_of(this, struct efi_gop_obj, ops);
- efi_uintn_t i, j, linelen;
+ efi_uintn_t i, j, linelen, slineoff = 0, dlineoff, swidth, dwidth;
u32 *fb32 = gopobj->fb;
u16 *fb16 = gopobj->fb;
-
- if (delta)
- linelen = delta;
- else
+ struct efi_gop_pixel *buffer = __builtin_assume_aligned(bufferp, 4);
+
+ if (delta) {
+ /* Check for 4 byte alignment */
+ if (delta & 3)
+ return EFI_INVALID_PARAMETER;
+ linelen = delta >> 2;
+ } else {
linelen = width;
-
- EFI_ENTRY("%p, %p, %u, %zu, %zu, %zu, %zu, %zu, %zu, %zu", this,
- buffer, operation, sx, sy, dx, dy, width, height, delta);
+ }
/* Check source rectangle */
switch (operation) {
break;
case EFI_BLT_BUFFER_TO_VIDEO:
if (sx + width > linelen)
- return EFI_EXIT(EFI_INVALID_PARAMETER);
+ return EFI_INVALID_PARAMETER;
break;
case EFI_BLT_VIDEO_TO_BLT_BUFFER:
case EFI_BLT_VIDEO_TO_VIDEO:
if (sx + width > gopobj->info.width ||
sy + height > gopobj->info.height)
- return EFI_EXIT(EFI_INVALID_PARAMETER);
+ return EFI_INVALID_PARAMETER;
break;
default:
- return EFI_EXIT(EFI_INVALID_PARAMETER);
+ return EFI_INVALID_PARAMETER;
}
/* Check destination rectangle */
case EFI_BLT_VIDEO_TO_VIDEO:
if (dx + width > gopobj->info.width ||
dy + height > gopobj->info.height)
- return EFI_EXIT(EFI_INVALID_PARAMETER);
+ return EFI_INVALID_PARAMETER;
break;
case EFI_BLT_VIDEO_TO_BLT_BUFFER:
if (dx + width > linelen)
- return EFI_EXIT(EFI_INVALID_PARAMETER);
+ return EFI_INVALID_PARAMETER;
+ break;
+ }
+
+ /* Calculate line width */
+ switch (operation) {
+ case EFI_BLT_BUFFER_TO_VIDEO:
+ swidth = linelen;
+ break;
+ case EFI_BLT_VIDEO_TO_BLT_BUFFER:
+ case EFI_BLT_VIDEO_TO_VIDEO:
+ swidth = gopobj->info.width;
+ if (!vid_bpp)
+ return EFI_UNSUPPORTED;
+ break;
+ case EFI_BLT_VIDEO_FILL:
+ swidth = 0;
+ break;
+ }
+
+ switch (operation) {
+ case EFI_BLT_BUFFER_TO_VIDEO:
+ case EFI_BLT_VIDEO_FILL:
+ case EFI_BLT_VIDEO_TO_VIDEO:
+ dwidth = gopobj->info.width;
+ if (!vid_bpp)
+ return EFI_UNSUPPORTED;
+ break;
+ case EFI_BLT_VIDEO_TO_BLT_BUFFER:
+ dwidth = linelen;
break;
}
+ slineoff = swidth * sy;
+ dlineoff = dwidth * dy;
for (i = 0; i < height; i++) {
for (j = 0; j < width; j++) {
struct efi_gop_pixel pix;
pix = *buffer;
break;
case EFI_BLT_BUFFER_TO_VIDEO:
- pix = buffer[linelen * (i + sy) + j + sx];
+ pix = buffer[slineoff + j + sx];
break;
case EFI_BLT_VIDEO_TO_BLT_BUFFER:
case EFI_BLT_VIDEO_TO_VIDEO:
- switch (gopobj->bpix) {
-#ifdef CONFIG_DM_VIDEO
- case VIDEO_BPP32:
-#else
- case LCD_COLOR32:
-#endif
+ if (vid_bpp == 32)
pix = *(struct efi_gop_pixel *)&fb32[
- gopobj->info.width *
- (i + sy) + j + sx];
- break;
-#ifdef CONFIG_DM_VIDEO
- case VIDEO_BPP16:
-#else
- case LCD_COLOR16:
-#endif
+ slineoff + j + sx];
+ else
pix = efi_vid16_to_blt_col(fb16[
- gopobj->info.width *
- (i + sy) + j + sx]);
- break;
- default:
- return EFI_EXIT(EFI_UNSUPPORTED);
- }
+ slineoff + j + sx]);
break;
}
/* Write destination pixel */
switch (operation) {
case EFI_BLT_VIDEO_TO_BLT_BUFFER:
- buffer[linelen * (i + dy) + j + dx] = pix;
+ buffer[dlineoff + j + dx] = pix;
break;
case EFI_BLT_BUFFER_TO_VIDEO:
case EFI_BLT_VIDEO_FILL:
case EFI_BLT_VIDEO_TO_VIDEO:
- switch (gopobj->bpix) {
+ if (vid_bpp == 32)
+ fb32[dlineoff + j + dx] = *(u32 *)&pix;
+ else
+ fb16[dlineoff + j + dx] =
+ efi_blt_col_to_vid16(&pix);
+ break;
+ }
+ }
+ slineoff += swidth;
+ dlineoff += dwidth;
+ }
+
+ return EFI_SUCCESS;
+}
+
+static efi_uintn_t gop_get_bpp(struct efi_gop *this)
+{
+ struct efi_gop_obj *gopobj = container_of(this, struct efi_gop_obj, ops);
+ efi_uintn_t vid_bpp = 0;
+
+ switch (gopobj->bpix) {
#ifdef CONFIG_DM_VIDEO
- case VIDEO_BPP32:
+ case VIDEO_BPP32:
#else
- case LCD_COLOR32:
+ case LCD_COLOR32:
#endif
- fb32[gopobj->info.width *
- (i + dy) + j + dx] = *(u32 *)&pix;
- break;
+ vid_bpp = 32;
+ break;
#ifdef CONFIG_DM_VIDEO
- case VIDEO_BPP16:
+ case VIDEO_BPP16:
#else
- case LCD_COLOR16:
+ case LCD_COLOR16:
#endif
- fb16[gopobj->info.width *
- (i + dy) + j + dx] =
- efi_blt_col_to_vid16(&pix);
- break;
- default:
- return EFI_EXIT(EFI_UNSUPPORTED);
- }
- break;
- }
- }
+ vid_bpp = 16;
+ break;
+ }
+
+ return vid_bpp;
+}
+
+/*
+ * Gcc can't optimize our BLT function well, but we need to make sure that
+ * our 2-dimensional loop gets executed very quickly, otherwise the system
+ * will feel slow.
+ *
+ * By manually putting all obvious branch targets into functions which call
+ * our generic blt function with constants, the compiler can successfully
+ * optimize for speed.
+ */
+static efi_status_t gop_blt_video_fill(struct efi_gop *this,
+ struct efi_gop_pixel *buffer,
+ u32 foo, efi_uintn_t sx,
+ efi_uintn_t sy, efi_uintn_t dx,
+ efi_uintn_t dy, efi_uintn_t width,
+ efi_uintn_t height, efi_uintn_t delta,
+ efi_uintn_t vid_bpp)
+{
+ return gop_blt_int(this, buffer, EFI_BLT_VIDEO_FILL, sx, sy, dx,
+ dy, width, height, delta, vid_bpp);
+}
+
+static efi_status_t gop_blt_buf_to_vid16(struct efi_gop *this,
+ struct efi_gop_pixel *buffer,
+ u32 foo, efi_uintn_t sx,
+ efi_uintn_t sy, efi_uintn_t dx,
+ efi_uintn_t dy, efi_uintn_t width,
+ efi_uintn_t height, efi_uintn_t delta)
+{
+ return gop_blt_int(this, buffer, EFI_BLT_BUFFER_TO_VIDEO, sx, sy, dx,
+ dy, width, height, delta, 16);
+}
+
+static efi_status_t gop_blt_buf_to_vid32(struct efi_gop *this,
+ struct efi_gop_pixel *buffer,
+ u32 foo, efi_uintn_t sx,
+ efi_uintn_t sy, efi_uintn_t dx,
+ efi_uintn_t dy, efi_uintn_t width,
+ efi_uintn_t height, efi_uintn_t delta)
+{
+ return gop_blt_int(this, buffer, EFI_BLT_BUFFER_TO_VIDEO, sx, sy, dx,
+ dy, width, height, delta, 32);
+}
+
+static efi_status_t gop_blt_vid_to_vid(struct efi_gop *this,
+ struct efi_gop_pixel *buffer,
+ u32 foo, efi_uintn_t sx,
+ efi_uintn_t sy, efi_uintn_t dx,
+ efi_uintn_t dy, efi_uintn_t width,
+ efi_uintn_t height, efi_uintn_t delta,
+ efi_uintn_t vid_bpp)
+{
+ return gop_blt_int(this, buffer, EFI_BLT_VIDEO_TO_VIDEO, sx, sy, dx,
+ dy, width, height, delta, vid_bpp);
+}
+
+static efi_status_t gop_blt_vid_to_buf(struct efi_gop *this,
+ struct efi_gop_pixel *buffer,
+ u32 foo, efi_uintn_t sx,
+ efi_uintn_t sy, efi_uintn_t dx,
+ efi_uintn_t dy, efi_uintn_t width,
+ efi_uintn_t height, efi_uintn_t delta,
+ efi_uintn_t vid_bpp)
+{
+ return gop_blt_int(this, buffer, EFI_BLT_VIDEO_TO_BLT_BUFFER, sx, sy,
+ dx, dy, width, height, delta, vid_bpp);
+}
+
+/*
+ * Copy rectangle.
+ *
+ * This function implements the Blt service of the EFI_GRAPHICS_OUTPUT_PROTOCOL.
+ * See the Unified Extensible Firmware Interface (UEFI) specification for
+ * details.
+ *
+ * @this: EFI_GRAPHICS_OUTPUT_PROTOCOL
+ * @buffer: pixel buffer
+ * @sx: source x-coordinate
+ * @sy: source y-coordinate
+ * @dx: destination x-coordinate
+ * @dy: destination y-coordinate
+ * @width: width of rectangle
+ * @height: height of rectangle
+ * @delta: length in bytes of a line in the pixel buffer (optional)
+ * @return: status code
+ */
+efi_status_t EFIAPI gop_blt(struct efi_gop *this, struct efi_gop_pixel *buffer,
+ u32 operation, efi_uintn_t sx,
+ efi_uintn_t sy, efi_uintn_t dx,
+ efi_uintn_t dy, efi_uintn_t width,
+ efi_uintn_t height, efi_uintn_t delta)
+{
+ efi_status_t ret = EFI_INVALID_PARAMETER;
+ efi_uintn_t vid_bpp;
+
+ EFI_ENTRY("%p, %p, %u, %zu, %zu, %zu, %zu, %zu, %zu, %zu", this,
+ buffer, operation, sx, sy, dx, dy, width, height, delta);
+
+ vid_bpp = gop_get_bpp(this);
+
+ /* Allow for compiler optimization */
+ switch (operation) {
+ case EFI_BLT_VIDEO_FILL:
+ ret = gop_blt_video_fill(this, buffer, operation, sx, sy, dx,
+ dy, width, height, delta, vid_bpp);
+ break;
+ case EFI_BLT_BUFFER_TO_VIDEO:
+ /* This needs to be super-fast, so duplicate for 16/32bpp */
+ if (vid_bpp == 32)
+ ret = gop_blt_buf_to_vid32(this, buffer, operation, sx,
+ sy, dx, dy, width, height,
+ delta);
+ else
+ ret = gop_blt_buf_to_vid16(this, buffer, operation, sx,
+ sy, dx, dy, width, height,
+ delta);
+ break;
+ case EFI_BLT_VIDEO_TO_VIDEO:
+ ret = gop_blt_vid_to_vid(this, buffer, operation, sx, sy, dx,
+ dy, width, height, delta, vid_bpp);
+ break;
+ case EFI_BLT_VIDEO_TO_BLT_BUFFER:
+ ret = gop_blt_vid_to_buf(this, buffer, operation, sx, sy, dx,
+ dy, width, height, delta, vid_bpp);
+ break;
+ default:
+ ret = EFI_UNSUPPORTED;
}
+ if (ret != EFI_SUCCESS)
+ return EFI_EXIT(ret);
+
#ifdef CONFIG_DM_VIDEO
video_sync_all();
#else
projects / u-boot / blobdiff