Mercurial > sdl-ios-xcode

annotate src/video/SDL_renderer_sw.c @ 1678:90bf530ced8e SDL-1.3

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
SDL_SetVideoMode() compiles now...
author Sam Lantinga <slouken@libsdl.org>
date Wed, 14 Jun 2006 06:14:26 +0000
parents e136f3ffdc1b
children 9488fca10677
rev   line source
1676
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
1 /*
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
2 SDL - Simple DirectMedia Layer
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
3 Copyright (C) 1997-2006 Sam Lantinga
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
4
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
5 This library is free software; you can redistribute it and/or
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
6 modify it under the terms of the GNU Lesser General Public
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
7 License as published by the Free Software Foundation; either
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
8 version 2.1 of the License, or (at your option) any later version.
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
9
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
10 This library is distributed in the hope that it will be useful,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
13 Lesser General Public License for more details.
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
14
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
15 You should have received a copy of the GNU Lesser General Public
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
16 License along with this library; if not, write to the Free Software
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
18
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
19 Sam Lantinga
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
20 slouken@libsdl.org
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
21 */
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
22 #include "SDL_config.h"
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
23
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
24 #include "SDL_video.h"
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
25 #include "SDL_sysvideo.h"
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
26
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
27
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
28 /* SDL surface based renderer implementation */
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
29
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
30 static SDL_Renderer *SDL_SW_CreateRenderer(SDL_Window * window, Uint32 flags);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
31 static int SDL_SW_CreateTexture(SDL_Renderer * renderer,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
32 SDL_Texture * texture);
1678
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
33 static int SDL_SW_QueryTexturePixels(SDL_Renderer * renderer,
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
34 SDL_Texture * texture, void **pixels,
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
35 int *pitch);
1676
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
36 static int SDL_SW_UpdateTexture(SDL_Renderer * renderer,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
37 SDL_Texture * texture, SDL_Rect * rect,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
38 const void *pixels, int pitch);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
39 static int SDL_SW_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
40 SDL_Rect * rect, int markDirty, void **pixels,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
41 int *pitch);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
42 static void SDL_SW_UnlockTexture(SDL_Renderer * renderer,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
43 SDL_Texture * texture);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
44 static void SDL_SW_DirtyTexture(SDL_Renderer * renderer,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
45 SDL_Texture * texture, int numrects,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
46 SDL_Rect * rects);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
47 static void SDL_SW_SelectRenderTexture(SDL_Renderer * renderer,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
48 SDL_Texture * texture);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
49 static void SDL_SW_RenderFill(SDL_Renderer * renderer, SDL_Rect * rect,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
50 Uint32 color);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
51 static int SDL_SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
52 SDL_Rect * srcrect, SDL_Rect * dstrect,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
53 int blendMode, int scaleMode);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
54 static int SDL_SW_RenderReadPixels(SDL_Renderer * renderer, SDL_Rect * rect,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
55 void *pixels, int pitch);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
56 static int SDL_SW_RenderWritePixels(SDL_Renderer * renderer, SDL_Rect * rect,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
57 const void *pixels, int pitch);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
58 static void SDL_SW_RenderPresent(SDL_Renderer * renderer);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
59 static void SDL_SW_DestroyTexture(SDL_Renderer * renderer,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
60 SDL_Texture * texture);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
61 static void SDL_SW_DestroyRenderer(SDL_Renderer * renderer);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
62
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
63
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
64 SDL_RenderDriver SDL_SW_RenderDriver = {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
65 SDL_SW_CreateRenderer,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
66 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
67 "software",
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
68 (SDL_Renderer_PresentDiscard |
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
69 SDL_Renderer_PresentCopy |
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
70 SDL_Renderer_PresentFlip2 |
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
71 SDL_Renderer_PresentFlip3 | SDL_Renderer_RenderTarget),
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
72 (SDL_TextureBlendMode_None |
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
73 SDL_TextureBlendMode_Mask | SDL_TextureBlendMode_Blend),
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
74 (SDL_TextureScaleMode_None | SDL_TextureScaleMode_Fast),
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
75 11,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
76 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
77 SDL_PixelFormat_Index8,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
78 SDL_PixelFormat_RGB555,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
79 SDL_PixelFormat_RGB565,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
80 SDL_PixelFormat_RGB888,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
81 SDL_PixelFormat_BGR888,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
82 SDL_PixelFormat_ARGB8888,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
83 SDL_PixelFormat_RGBA8888,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
84 SDL_PixelFormat_ABGR8888,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
85 SDL_PixelFormat_BGRA8888,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
86 SDL_PixelFormat_YUY2,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
87 SDL_PixelFormat_UYVY},
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
88 32768,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
89 32768}
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
90 };
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
91
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
92 typedef struct
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
93 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
94 int current_screen;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
95 SDL_Surface *screens[3];
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
96 SDL_Surface *target;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
97 SDL_Renderer *renderer;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
98 } SDL_SW_RenderData;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
99
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
100 SDL_Renderer *
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
101 SDL_SW_CreateRenderer(SDL_Window * window, Uint32 flags)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
102 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
103 SDL_DisplayMode *displayMode = &window->display->current_mode;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
104 SDL_Renderer *renderer;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
105 SDL_SW_RenderData *data;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
106 int i, n;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
107 int bpp;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
108 Uint32 Rmask, Gmask, Bmask, Amask;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
109
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
110 if (!SDL_PixelFormatEnumToMasks
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
111 (displayMode->format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
112 SDL_SetError("Unknown display format");
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
113 return NULL;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
114 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
115
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
116 renderer = (SDL_Renderer *) SDL_malloc(sizeof(*renderer));
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
117 if (!renderer) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
118 SDL_OutOfMemory();
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
119 return NULL;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
120 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
121 SDL_zerop(renderer);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
122
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
123 data = (SDL_SW_RenderData *) SDL_malloc(sizeof(*data));
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
124 if (!data) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
125 SDL_SW_DestroyRenderer(renderer);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
126 SDL_OutOfMemory();
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
127 return NULL;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
128 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
129 SDL_zerop(data);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
130
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
131 renderer->CreateTexture = SDL_SW_CreateTexture;
1678
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
132 renderer->QueryTexturePixels = SDL_SW_QueryTexturePixels;
1676
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
133 renderer->UpdateTexture = SDL_SW_UpdateTexture;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
134 renderer->LockTexture = SDL_SW_LockTexture;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
135 renderer->UnlockTexture = SDL_SW_UnlockTexture;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
136 renderer->DirtyTexture = SDL_SW_DirtyTexture;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
137 renderer->SelectRenderTexture = SDL_SW_SelectRenderTexture;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
138 renderer->RenderFill = SDL_SW_RenderFill;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
139 renderer->RenderCopy = SDL_SW_RenderCopy;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
140 renderer->RenderReadPixels = SDL_SW_RenderReadPixels;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
141 renderer->RenderWritePixels = SDL_SW_RenderWritePixels;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
142 renderer->RenderPresent = SDL_SW_RenderPresent;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
143 renderer->DestroyTexture = SDL_SW_DestroyTexture;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
144 renderer->DestroyRenderer = SDL_SW_DestroyRenderer;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
145 renderer->info = SDL_SW_RenderDriver.info;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
146 renderer->window = window;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
147 renderer->driverdata = data;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
148
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
149 renderer->info.flags = SDL_Renderer_RenderTarget;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
150
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
151 if (flags & SDL_Renderer_PresentFlip2) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
152 renderer->info.flags |= SDL_Renderer_PresentFlip2;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
153 n = 2;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
154 } else if (flags & SDL_Renderer_PresentFlip3) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
155 renderer->info.flags |= SDL_Renderer_PresentFlip3;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
156 n = 3;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
157 } else {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
158 renderer->info.flags |= SDL_Renderer_PresentCopy;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
159 n = 1;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
160 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
161 for (i = 0; i < n; ++i) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
162 data->screens[i] =
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
163 SDL_CreateRGBSurface(0, window->w, window->h, bpp, Rmask, Gmask,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
164 Bmask, Amask);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
165 if (!data->screens[i]) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
166 SDL_SW_DestroyRenderer(renderer);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
167 return NULL;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
168 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
169 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
170 data->current_screen = 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
171 data->target = data->screens[0];
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
172
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
173 /* Find a render driver that we can use to display data */
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
174 for (i = 0; i < window->display->num_render_drivers; ++i) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
175 SDL_RenderDriver *driver = &window->display->render_drivers[i];
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
176 if (driver->info.name != SDL_SW_RenderDriver.info.name) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
177 data->renderer =
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
178 driver->CreateRenderer(window, SDL_Renderer_PresentDiscard);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
179 if (data->renderer) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
180 break;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
181 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
182 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
183 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
184 if (i == window->display->num_render_drivers) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
185 SDL_SW_DestroyRenderer(renderer);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
186 SDL_SetError("Couldn't find display render driver");
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
187 return NULL;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
188 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
189 return renderer;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
190 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
191
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
192 int
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
193 SDL_SW_CreateTexture(SDL_Renderer * renderer, SDL_Texture * texture)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
194 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
195 SDL_Surface *surface;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
196 int bpp;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
197 Uint32 Rmask, Gmask, Bmask, Amask;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
198
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
199 if (SDL_ISPIXELFORMAT_FOURCC(texture->format)) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
200 /* FIXME: implement this */
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
201 return -1;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
202 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
203
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
204 if (!SDL_PixelFormatEnumToMasks
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
205 (texture->format, &bpp, &Rmask, &Gmask, &Bmask, &Amask)) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
206 SDL_SetError("Unknown texture format");
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
207 return -1;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
208 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
209
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
210 surface =
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
211 SDL_CreateRGBSurface(0, texture->w, texture->h, bpp, Rmask, Gmask,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
212 Bmask, Amask);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
213 if (!surface) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
214 return -1;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
215 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
216
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
217 texture->driverdata = surface;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
218 return 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
219 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
220
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
221 int
1678
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
222 SDL_SW_QueryTexturePixels(SDL_Renderer * renderer, SDL_Texture * texture,
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
223 void **pixels, int *pitch)
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
224 {
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
225 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
226
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
227 *pixels = surface->pixels;
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
228 *pitch = surface->pitch;
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
229 return 0;
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
230 }
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
231
90bf530ced8e SDL_SetVideoMode() compiles now...
Sam Lantinga <slouken@libsdl.org>
parents: 1676
diff changeset
232 int
1676
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
233 SDL_SW_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
234 SDL_Rect * rect, const void *pixels, int pitch)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
235 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
236 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
237 Uint8 *src, *dst;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
238 int row;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
239 size_t length;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
240
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
241 src = (Uint8 *) pixels;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
242 dst =
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
243 (Uint8 *) surface->pixels + rect->y * surface->pitch +
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
244 rect->x * surface->format->BytesPerPixel;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
245 length = rect->w * surface->format->BytesPerPixel;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
246 for (row = 0; row < rect->h; ++row) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
247 SDL_memcpy(dst, src, length);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
248 src += pitch;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
249 dst += surface->pitch;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
250 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
251 return 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
252 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
253
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
254 int
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
255 SDL_SW_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
256 SDL_Rect * rect, int markDirty, void **pixels, int *pitch)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
257 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
258 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
259
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
260 *pixels =
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
261 (void *) ((Uint8 *) surface->pixels + rect->y * surface->pitch +
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
262 rect->x * surface->format->BytesPerPixel);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
263 *pitch = surface->pitch;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
264 return 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
265 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
266
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
267 void
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
268 SDL_SW_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
269 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
270 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
271
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
272 void
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
273 SDL_SW_DirtyTexture(SDL_Renderer * renderer, SDL_Texture * texture,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
274 int numrects, SDL_Rect * rects)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
275 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
276 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
277
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
278 void
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
279 SDL_SW_SelectRenderTexture(SDL_Renderer * renderer, SDL_Texture * texture)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
280 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
281 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
282 data->target = (SDL_Surface *) texture->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
283 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
284
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
285 void
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
286 SDL_SW_RenderFill(SDL_Renderer * renderer, SDL_Rect * rect, Uint32 color)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
287 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
288 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
289 Uint8 r, g, b, a;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
290
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
291 a = (Uint8) ((color >> 24) & 0xFF);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
292 r = (Uint8) ((color >> 16) & 0xFF);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
293 g = (Uint8) ((color >> 8) & 0xFF);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
294 b = (Uint8) (color & 0xFF);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
295 color = SDL_MapRGBA(data->target->format, r, g, b, a);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
296
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
297 SDL_FillRect(data->target, rect, color);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
298 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
299
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
300 int
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
301 SDL_SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
302 SDL_Rect * srcrect, SDL_Rect * dstrect, int blendMode,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
303 int scaleMode)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
304 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
305 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
306 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
307
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
308 if (blendMode & (SDL_TextureBlendMode_Mask | SDL_TextureBlendMode_Blend)) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
309 SDL_SetAlpha(surface, SDL_SRCALPHA, 0);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
310 } else {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
311 SDL_SetAlpha(surface, 0, 0);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
312 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
313 if (scaleMode != SDL_TextureScaleMode_None &&
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
314 (srcrect->w != dstrect->w || srcrect->h != dstrect->h)) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
315 return SDL_SoftStretch(surface, srcrect, data->target, dstrect);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
316 } else {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
317 return SDL_LowerBlit(surface, srcrect, data->target, dstrect);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
318 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
319 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
320
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
321 int
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
322 SDL_SW_RenderReadPixels(SDL_Renderer * renderer, SDL_Rect * rect,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
323 void *pixels, int pitch)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
324 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
325 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
326 SDL_Surface *surface = data->target;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
327 Uint8 *src, *dst;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
328 int row;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
329 size_t length;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
330
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
331 src =
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
332 (Uint8 *) surface->pixels + rect->y * surface->pitch +
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
333 rect->x * surface->format->BytesPerPixel;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
334 dst = (Uint8 *) pixels;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
335 length = rect->w * surface->format->BytesPerPixel;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
336 for (row = 0; row < rect->h; ++row) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
337 SDL_memcpy(dst, src, length);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
338 src += surface->pitch;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
339 dst += pitch;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
340 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
341 return 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
342 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
343
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
344 int
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
345 SDL_SW_RenderWritePixels(SDL_Renderer * renderer, SDL_Rect * rect,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
346 const void *pixels, int pitch)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
347 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
348 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
349 SDL_Surface *surface = data->target;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
350 Uint8 *src, *dst;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
351 int row;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
352 size_t length;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
353
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
354 src = (Uint8 *) pixels;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
355 dst =
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
356 (Uint8 *) surface->pixels + rect->y * surface->pitch +
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
357 rect->x * surface->format->BytesPerPixel;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
358 length = rect->w * surface->format->BytesPerPixel;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
359 for (row = 0; row < rect->h; ++row) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
360 SDL_memcpy(dst, src, length);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
361 src += pitch;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
362 dst += surface->pitch;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
363 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
364 return 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
365 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
366
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
367 void
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
368 SDL_SW_RenderPresent(SDL_Renderer * renderer)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
369 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
370 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
371 SDL_Surface *surface = data->screens[data->current_screen];
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
372 SDL_Rect rect;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
373 int new_screen;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
374
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
375 /* Send the data to the display */
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
376 /* FIXME: implement dirty rect updates */
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
377 rect.x = 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
378 rect.y = 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
379 rect.w = surface->w;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
380 rect.h = surface->h;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
381 data->renderer->RenderWritePixels(data->renderer, &rect, surface->pixels,
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
382 surface->pitch);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
383 data->renderer->RenderPresent(data->renderer);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
384
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
385 /* Update the flipping chain, if any */
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
386 if (renderer->info.flags & SDL_Renderer_PresentFlip2) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
387 new_screen = (data->current_screen + 1) % 2;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
388 } else if (renderer->info.flags & SDL_Renderer_PresentFlip3) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
389 new_screen = (data->current_screen + 1) % 3;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
390 } else {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
391 new_screen = 0;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
392 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
393 if (data->target == data->screens[data->current_screen]) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
394 data->target = data->screens[new_screen];
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
395 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
396 data->current_screen = new_screen;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
397 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
398
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
399 void
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
400 SDL_SW_DestroyTexture(SDL_Renderer * renderer, SDL_Texture * texture)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
401 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
402 SDL_Surface *surface = (SDL_Surface *) texture->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
403
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
404 SDL_FreeSurface(surface);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
405 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
406
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
407 void
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
408 SDL_SW_DestroyRenderer(SDL_Renderer * renderer)
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
409 {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
410 SDL_SW_RenderData *data = (SDL_SW_RenderData *) renderer->driverdata;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
411 int i;
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
412
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
413 if (data) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
414 for (i = 0; i < SDL_arraysize(data->screens); ++i) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
415 if (data->screens[i]) {
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
416 SDL_FreeSurface(data->screens[i]);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
417 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
418 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
419 SDL_free(data);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
420 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
421 SDL_free(renderer);
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
422 }
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
423
e136f3ffdc1b Adding software renderer implementation
Sam Lantinga <slouken@libsdl.org>
parents:
diff changeset
424 /* vi: set ts=4 sw=4 expandtab: */