Hi, this routine copies pixel data from a buffer onto a
TBitmap.RawImage.Data structure.
var
PixelPtr: PByte;
PixelRowPtr: PByte;
begin
PixelRowPtr := Fbmp.RawImage.Data;
for Y := 0 to Self.Height - 1 do
begin
PixelPtr := PixelRowPtr;
for X := 0 to Self.Width - 1 do
begin
.nabble.com/Lazarus-Slow-pointer-assignments-tp4030759p4030762.html
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On 2013-04-18 08:48:11 -0700, leledumbo wrote:
Assign all the RGBA value in one go, that would reduce the inner loop by 4
times. i.e.:
var
PixelPtr: PLongWord;
PixelRowPtr: PByte;
begin
PixelRowPtr := Fbmp.RawImage.Data;
for Y := 0 to Self.Height - 1 do
begin
On 2013-04-18 12:49:07 -0300, Leonardo M. Ramé wrote:
On 2013-04-18 08:48:11 -0700, leledumbo wrote:
Assign all the RGBA value in one go, that would reduce the inner loop by 4
times. i.e.:
var
PixelPtr: PLongWord;
PixelRowPtr: PByte;
begin
PixelRowPtr :=
On 04/18/2013 07:53 PM, Leonardo M. Ramé wrote:
On 2013-04-18 12:49:07 -0300, Leonardo M. Ramé wrote:
On 2013-04-18 08:48:11 -0700, leledumbo wrote:
Assign all the RGBA value in one go, that would reduce the inner loop by 4
times. i.e.:
var
PixelPtr: PLongWord;
PixelRowPtr: PByte;
On 2013-04-18 20:37:06 +0200, Ludo Brands wrote:
On 04/18/2013 07:53 PM, Leonardo M. Ramé wrote:
On 2013-04-18 12:49:07 -0300, Leonardo M. Ramé wrote:
On 2013-04-18 08:48:11 -0700, leledumbo wrote:
Assign all the RGBA value in one go, that would reduce the inner loop by 4
times. i.e.:
