Mercurial > sdl-ios-xcode
annotate src/video/qnxgf/SDL_gf_pixelfmt.c @ 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 | 44d5474c2c8a |
children | f7b03b6838cb |
rev | line source |
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1 /* |
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2 SDL - Simple DirectMedia Layer |
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3 Copyright (C) 1997-2009 Sam Lantinga |
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4 |
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5 This library is free software; you can redistribute it and/or |
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6 modify it under the terms of the GNU Lesser General Public |
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7 License as published by the Free Software Foundation; either |
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8 version 2.1 of the License, or (at your option) any later version. |
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9 |
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10 This library is distributed in the hope that it will be useful, |
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 Lesser General Public License for more details. |
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14 |
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15 You should have received a copy of the GNU Lesser General Public |
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16 License along with this library; if not, write to the Free Software |
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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18 |
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19 Sam Lantinga |
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20 slouken@libsdl.org |
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21 |
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22 QNX Graphics Framework SDL driver |
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23 Copyright (C) 2009 Mike Gorchak |
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24 (mike@malva.ua, lestat@i.com.ua) |
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25 */ |
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26 |
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27 #include "SDL_config.h" |
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28 #include "SDL_gf_pixelfmt.h" |
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29 |
3139 | 30 gf_format_t |
31 qnxgf_sdl_to_gf_pixelformat(uint32_t pixelfmt) | |
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32 { |
3139 | 33 switch (pixelfmt) { |
34 case SDL_PIXELFORMAT_INDEX8: | |
35 { | |
36 return GF_FORMAT_PAL8; | |
37 } | |
38 break; | |
39 case SDL_PIXELFORMAT_ARGB1555: | |
40 { | |
41 return GF_FORMAT_PACK_ARGB1555; | |
42 } | |
43 break; | |
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44 case SDL_PIXELFORMAT_RGB555: |
3139 | 45 { |
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46 /* RGB555 is the same as ARGB1555, but alpha is ignored */ |
3139 | 47 return GF_FORMAT_PACK_ARGB1555; |
48 } | |
49 break; | |
50 case SDL_PIXELFORMAT_RGB565: | |
51 { | |
52 return GF_FORMAT_PACK_RGB565; | |
53 } | |
54 break; | |
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55 case SDL_PIXELFORMAT_BGR565: |
3139 | 56 { |
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57 return GF_FORMAT_PKBE_RGB565; |
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58 } |
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59 break; |
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60 case SDL_PIXELFORMAT_RGB24: |
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61 { |
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62 /* GF has wrong components order */ |
3139 | 63 return GF_FORMAT_BGR888; |
64 } | |
65 break; | |
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66 case SDL_PIXELFORMAT_RGB888: |
3139 | 67 { |
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68 /* The same format as ARGB8888, but with alpha ignored */ |
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69 /* and GF has wrong components order */ |
3139 | 70 return GF_FORMAT_BGRA8888; |
71 } | |
72 break; | |
73 case SDL_PIXELFORMAT_ARGB8888: | |
74 { | |
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75 /* GF has wrong components order */ |
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76 return GF_FORMAT_BGRA8888; |
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77 } |
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78 break; |
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79 case SDL_PIXELFORMAT_BGRA8888: |
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80 { |
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81 /* GF has wrong components order */ |
3139 | 82 return GF_FORMAT_ARGB8888; |
83 } | |
84 break; | |
85 case SDL_PIXELFORMAT_YV12: | |
86 { | |
87 return GF_FORMAT_PLANAR_YUV_YV12; | |
88 } | |
89 break; | |
90 case SDL_PIXELFORMAT_YUY2: | |
91 { | |
92 return GF_FORMAT_PACK_YUV_YUY2; | |
93 } | |
94 break; | |
95 case SDL_PIXELFORMAT_UYVY: | |
96 { | |
97 return GF_FORMAT_PACK_YUV_UYVY; | |
98 } | |
99 break; | |
100 case SDL_PIXELFORMAT_YVYU: | |
101 { | |
102 return GF_FORMAT_PACK_YUV_YVYU; | |
103 } | |
104 break; | |
105 } | |
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106 |
3139 | 107 return GF_FORMAT_INVALID; |
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108 } |
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109 |
3139 | 110 uint32_t |
111 qnxgf_gf_to_sdl_pixelformat(gf_format_t pixelfmt) | |
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112 { |
3139 | 113 switch (pixelfmt) { |
114 case GF_FORMAT_PAL8: | |
115 { | |
116 return SDL_PIXELFORMAT_INDEX8; | |
117 } | |
118 break; | |
119 case GF_FORMAT_PKLE_ARGB1555: | |
120 { | |
121 return SDL_PIXELFORMAT_ARGB1555; | |
122 } | |
123 break; | |
124 case GF_FORMAT_PACK_ARGB1555: | |
125 { | |
126 return SDL_PIXELFORMAT_ARGB1555; | |
127 } | |
128 break; | |
129 case GF_FORMAT_PKBE_RGB565: | |
130 { | |
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131 return SDL_PIXELFORMAT_BGR565; |
3139 | 132 } |
133 break; | |
134 case GF_FORMAT_PKLE_RGB565: | |
135 { | |
136 return SDL_PIXELFORMAT_RGB565; | |
137 } | |
138 break; | |
139 case GF_FORMAT_PACK_RGB565: | |
140 { | |
141 return SDL_PIXELFORMAT_RGB565; | |
142 } | |
143 break; | |
144 case GF_FORMAT_BGR888: | |
145 { | |
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146 /* GF has wrong components order */ |
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147 return SDL_PIXELFORMAT_RGB24; |
3139 | 148 } |
149 break; | |
150 case GF_FORMAT_BGRA8888: | |
151 { | |
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152 /* GF has wrong components order */ |
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153 return SDL_PIXELFORMAT_ARGB8888; |
3139 | 154 } |
155 break; | |
156 case GF_FORMAT_ARGB8888: | |
157 { | |
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158 /* GF has wrong components order */ |
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159 return SDL_PIXELFORMAT_BGRA8888; |
3139 | 160 } |
161 break; | |
162 case GF_FORMAT_PLANAR_YUV_YV12: | |
163 { | |
164 return SDL_PIXELFORMAT_YV12; | |
165 } | |
166 break; | |
167 case GF_FORMAT_PACK_YUV_YUY2: | |
168 { | |
169 return SDL_PIXELFORMAT_YUY2; | |
170 } | |
171 break; | |
172 case GF_FORMAT_PACK_YUV_UYVY: | |
173 { | |
174 return SDL_PIXELFORMAT_UYVY; | |
175 } | |
176 break; | |
177 case GF_FORMAT_PACK_YUV_YVYU: | |
178 { | |
179 return SDL_PIXELFORMAT_YVYU; | |
180 } | |
181 break; | |
182 } | |
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183 |
3139 | 184 return SDL_PIXELFORMAT_UNKNOWN; |
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185 } |
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186 |
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187 /* vi: set ts=4 sw=4 expandtab: */ |