[reactos] 01/01: [BLUE] Optimize ScrIoControl for speed (#5185)

[Katayama Hirofumi MZ]

https://git.reactos.org/?p=reactos.git;a=commitdiff;h=3526ffc094277e03d1a014...

commit 3526ffc094277e03d1a01435036bfb089806b88d
Author:     Katayama Hirofumi MZ [e-mail]
AuthorDate: Tue Mar 28 08:12:38 2023 +0900
Commit:     GitHub [e-mail]
CommitDate: Tue Mar 28 08:12:38 2023 +0900

[BLUE] Optimize ScrIoControl for speed (#5185)

Optimize IOCTL_CONSOLE_FILL_OUTPUT_ATTRIBUTE and IOCTL_CONSOLE_FILL_OUTPUT_CHARACTER for speed by using cache. CORE-18838
---
 drivers/setup/blue/blue.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/setup/blue/blue.c b/drivers/setup/blue/blue.c
index 81011fe10cc..06e498d8208 100644
--- a/drivers/setup/blue/blue.c
+++ b/drivers/setup/blue/blue.c
@@ -1073,6 +1073,8 @@ ScrIoControl(

if (DeviceExtension->Enabled && DeviceExtension->VideoMemory)
             {
+                UCHAR attr = Buf->wAttribute;
+
                 vidmem = DeviceExtension->VideoMemory;
                 offset = (Buf->dwCoord.X + Buf->dwCoord.Y * DeviceExtension->Columns) * 2 + 1;

@@ -1082,7 +1084,7 @@ ScrIoControl(

for (dwCount = 0; dwCount < nMaxLength; dwCount++)
                 {
-                    vidmem[offset + (dwCount * 2)] = (char)Buf->wAttribute;
+                    vidmem[offset + (dwCount * 2)] = attr;
                 }
                 Buf->dwTransfered = dwCount;
             }
@@ -1271,6 +1273,8 @@ ScrIoControl(

if (DeviceExtension->Enabled && DeviceExtension->VideoMemory)
             {
+                UCHAR ch = Buf->cCharacter;
+
                 vidmem = DeviceExtension->VideoMemory;
                 offset = (Buf->dwCoord.X + Buf->dwCoord.Y * DeviceExtension->Columns) * 2;

@@ -1280,7 +1284,7 @@ ScrIoControl(

for (dwCount = 0; dwCount < nMaxLength; dwCount++)
                 {
-                    vidmem[offset + (dwCount * 2)] = (char)Buf->cCharacter;
+                    vidmem[offset + (dwCount * 2)] = ch;
                 }
                 Buf->dwTransfered = dwCount;
             }