Mercurial > sdl-ios-xcode
annotate src/video/fbcon/3dfx_regs.h @ 3485:e77a69aae239
Mason Wheeler to sdl
I updated SDL, and suddenly my SDL frames stopped working. They'd "initialize" full of gibberish, and I couldn't render anything to them. After a bit of digging, I found a problem: the renderer initialization routine in my SDL frame code wasn't getting called anymore.
procedure TSdlFrame.Paint;
begin
if SDL_SelectRenderer(FWindowID) = -1 then
CreateRenderer;
SDL_RenderPresent;
end;
function TSdlFrame.CreateRenderer: boolean;
const
pf: tagPIXELFORMATDESCRIPTOR = (nSize: sizeof(pf); nVersion: 1;
dwFlags: PFD_DRAW_TO_WINDOW or PFD_SUPPORT_OPENGL or PFD_DOUBLEBUFFER;
iPixelType: PFD_TYPE_RGBA; cColorBits: 24; cAlphaBits: 8;
iLayerType: PFD_MAIN_PLANE);
RENDERERS: array[TRendererType] of AnsiString = ('software', 'gdi', 'opengl', 'd3d');
var
pFormat: integer;
begin
if (SDL_SelectRenderer(FWindowID) = 0) then
begin
result := true;
Exit;
end;
if FRendererType = rtOpenGL then
begin
pFormat := ChoosePixelFormat(canvas.Handle, @pf);
if not SetPixelFormat(canvas.Handle, pFormat, @pf) then
outputDebugString(PChar(SysErrorMessage(GetLastError)));
if wglCreateContext(canvas.Handle) = 0 then
outputDebugString(PChar(SysErrorMessage(GetLastError)));
end;
if (SDL_CreateRenderer(FWindowID, SDL_RendererIndex(RENDERERS[FRendererType]), [sdlrPresentFlip3, sdlrAccelerated]) = 0) then
begin
SDL_ShowWindow(FWindowID);
assert(SDL_SetRenderDrawColor(0, 0, 0, 255) = 0);
FFlags := SDL_GetWindowFlags(FWindowID);
if assigned(FOnAvailable) then
FOnAvailable(self);
end
else outputDebugString(pChar(format('SDL_CreateRenderer failed: %s', [sdl_GetError])));
result := SDL_SelectRenderer(FWindowID) = 0;
end;
This is a critical issue. The Paint method gets called when the control receives a WM_PAINT message from Windows. I can't create the renderer before then, or it will fail and cause trouble. And when I do create it, it needs to be created with certain parameters. So imagine my surprise when I started debugging into the DLL and found that SDL_SelectRenderer was trying to be "helpful" by creating the renderer for me if it didn't already exist! Now not only does my initialization code not get called, I end up with the wrong renderer and so things don't render as expected when I try to use the window.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 24 Nov 2009 04:48:12 +0000 |
parents | 99210400e8b9 |
children | f7b03b6838cb |
rev | line source |
---|---|
0 | 1 /* |
2 SDL - Simple DirectMedia Layer | |
2859 | 3 Copyright (C) 1997-2009 Sam Lantinga |
0 | 4 |
5 This library is free software; you can redistribute it and/or | |
1312
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Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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6 modify it under the terms of the GNU Lesser General Public |
0 | 7 License as published by the Free Software Foundation; either |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
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8 version 2.1 of the License, or (at your option) any later version. |
0 | 9 |
10 This library is distributed in the hope that it will be useful, | |
11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
13 Lesser General Public License for more details. |
0 | 14 |
1312
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
15 You should have received a copy of the GNU Lesser General Public |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
16 License along with this library; if not, write to the Free Software |
c9b51268668f
Updated copyright information and removed rcs id lines (problematic in branch merges)
Sam Lantinga <slouken@libsdl.org>
parents:
769
diff
changeset
|
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
0 | 18 |
19 Sam Lantinga | |
252
e8157fcb3114
Updated the source with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
parents:
0
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20 slouken@libsdl.org |
0 | 21 */ |
1402
d910939febfa
Use consistent identifiers for the various platforms we support.
Sam Lantinga <slouken@libsdl.org>
parents:
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22 #include "SDL_config.h" |
0 | 23 |
24 #ifndef _3DFX_REGS_H | |
25 #define _3DFX_REGS_H | |
26 | |
27 /* This information comes from the public 3Dfx specs for the Voodoo 3000 */ | |
28 | |
29 /* mapped_io register offsets */ | |
30 #define TDFX_STATUS 0x00 | |
31 | |
32 #define INTCTRL (0x00100000 + 0x04) | |
33 #define CLIP0MIN (0x00100000 + 0x08) | |
34 #define CLIP0MAX (0x00100000 + 0x0c) | |
35 #define DSTBASE (0x00100000 + 0x10) | |
36 #define DSTFORMAT (0x00100000 + 0x14) | |
37 #define SRCCOLORKEYMIN (0x00100000 + 0x18) | |
38 #define SRCCOLORKEYMAX (0x00100000 + 0x1c) | |
39 #define DSTCOLORKEYMIN (0x00100000 + 0x20) | |
40 #define DSTCOLORKEYMAX (0x00100000 + 0x24) | |
41 #define BRESERROR0 (0x00100000 + 0x28) | |
42 #define BRESERROR1 (0x00100000 + 0x2c) | |
43 #define ROP_2D (0x00100000 + 0x30) | |
44 #define SRCBASE (0x00100000 + 0x34) | |
45 #define COMMANDEXTRA_2D (0x00100000 + 0x38) | |
46 #define PATTERN0 (0x00100000 + 0x44) | |
47 #define PATTERN1 (0x00100000 + 0x48) | |
48 #define CLIP1MIN (0x00100000 + 0x4c) | |
49 #define CLIP1MAX (0x00100000 + 0x50) | |
50 #define SRCFORMAT (0x00100000 + 0x54) | |
51 #define SRCSIZE (0x00100000 + 0x58) | |
52 #define SRCXY (0x00100000 + 0x5c) | |
53 #define COLORBACK (0x00100000 + 0x60) | |
54 #define COLORFORE (0x00100000 + 0x64) | |
55 #define DSTSIZE (0x00100000 + 0x68) | |
56 #define DSTXY (0x00100000 + 0x6c) | |
57 #define COMMAND_2D (0x00100000 + 0x70) | |
58 #define LAUNCH_2D (0x00100000 + 0x80) | |
59 #define PATTERNBASE (0x00100000 + 0x100) | |
60 | |
61 #define COMMAND_3D (0x00200000 + 0x120) | |
62 | |
63 /* register bitfields (not all, only as needed) */ | |
64 | |
65 #define BIT(x) (1UL << (x)) | |
66 | |
67 #define COMMAND_2D_BITBLT 0x01 | |
68 #define COMMAND_2D_FILLRECT 0x05 | |
69 #define COMMAND_2D_LINE 0x06 | |
70 #define COMMAND_2D_POLYGON_FILL 0x08 | |
71 #define COMMAND_2D_INITIATE BIT(8) | |
72 #define COMMAND_2D_REVERSELINE BIT(9) | |
73 #define COMMAND_2D_STIPPLELINE BIT(12) | |
74 #define COMMAND_2D_MONOCHROME_PATT BIT(13) | |
75 #define COMMAND_2D_MONOCHROME_TRANSP BIT(16) | |
76 | |
77 #define COMMAND_3D_NOP 0x00 | |
78 | |
79 #define STATUS_RETRACE BIT(6) | |
80 #define STATUS_BUSY BIT(9) | |
81 | |
82 #endif /* _3DFX_REGS_H */ | |
1895
c121d94672cb
SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents:
1402
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83 /* vi: set ts=4 sw=4 expandtab: */ |