2 // Copyright (C) 2006 Matthias Braun <matze@braunis.de>
3 // Updated by GiBy 2013 for SDL2 <giby_the_kid@yahoo.fr>
5 // This program is free software: you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation, either version 3 of the License, or
8 // (at your option) any later version.
10 // This program 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
13 // GNU General Public License for more details.
15 // You should have received a copy of the GNU General Public License
16 // along with this program. If not, see <http://www.gnu.org/licenses/>.
18 #include "video/sdl/sdl_renderer.hpp"
20 #include "util/log.hpp"
21 #include "video/drawing_request.hpp"
22 #include "video/sdl/sdl_surface_data.hpp"
23 #include "video/sdl/sdl_texture.hpp"
30 #include "SDL2/SDL_video.h"
32 SDLRenderer::SDLRenderer() :
36 Renderer::instance_ = this;
38 log_info << "creating SDLRenderer" << std::endl;
39 int width = g_config->window_size.width;
40 int height = g_config->window_size.height;
43 if(g_config->use_fullscreen)
45 flags |= SDL_WINDOW_FULLSCREEN;
46 width = g_config->fullscreen_size.width;
47 height = g_config->fullscreen_size.height;
50 int ret = SDL_CreateWindowAndRenderer(width, height, flags,
54 std::stringstream msg;
55 msg << "Couldn't set video mode (" << width << "x" << height
56 << "): " << SDL_GetError();
57 throw std::runtime_error(msg.str());
60 SDL_RendererInfo info;
61 if (SDL_GetRendererInfo(renderer, &info) != 0)
63 log_warning << "Couldn't get RendererInfo: " << SDL_GetError() << std::endl;
67 log_info << "SDL_Renderer: " << info.name << std::endl;
68 log_info << "SDL_RendererFlags: " << std::endl;
69 if (info.flags & SDL_RENDERER_SOFTWARE) log_info << " SDL_RENDERER_SOFTWARE" << std::endl;
70 if (info.flags & SDL_RENDERER_ACCELERATED) log_info << " SDL_RENDERER_ACCELERATED" << std::endl;
71 if (info.flags & SDL_RENDERER_PRESENTVSYNC) log_info << " SDL_RENDERER_PRESENTVSYNC" << std::endl;
72 if (info.flags & SDL_RENDERER_TARGETTEXTURE) log_info << " SDL_RENDERER_TARGETTEXTURE" << std::endl;
73 log_info << "Texture Formats: " << std::endl;
74 for(size_t i = 0; i < info.num_texture_formats; ++i)
76 log_info << " " << SDL_GetPixelFormatName(info.texture_formats[i]) << std::endl;
78 log_info << "Max Texture Width: " << info.max_texture_width << std::endl;
79 log_info << "Max Texture Height: " << info.max_texture_height << std::endl;
82 SDL_SetWindowTitle(window, "SuperTux");
83 if(texture_manager == 0)
84 texture_manager = new TextureManager();
87 SDLRenderer::~SDLRenderer()
89 SDL_DestroyRenderer(renderer);
90 SDL_DestroyWindow(window);
94 SDLRenderer::draw_surface(const DrawingRequest& request)
96 //FIXME: support parameters request.angle, request.blend
97 const Surface* surface = (const Surface*) request.request_data;
98 boost::shared_ptr<SDLTexture> sdltexture = boost::dynamic_pointer_cast<SDLTexture>(surface->get_texture());
101 dst_rect.x = request.pos.x;
102 dst_rect.y = request.pos.y;
103 dst_rect.w = sdltexture->get_image_width();
104 dst_rect.h = sdltexture->get_image_height();
106 Uint8 r = static_cast<Uint8>(request.color.red * 255);
107 Uint8 g = static_cast<Uint8>(request.color.green * 255);
108 Uint8 b = static_cast<Uint8>(request.color.blue * 255);
109 Uint8 a = static_cast<Uint8>(request.color.alpha * request.alpha * 255);
110 SDL_SetTextureColorMod(sdltexture->get_texture(), r, g, b);
111 SDL_SetTextureAlphaMod(sdltexture->get_texture(), a);
113 if (surface->get_flipx())
115 SDL_RenderCopyEx(renderer, sdltexture->get_texture(), NULL, &dst_rect, 0, NULL, SDL_FLIP_HORIZONTAL);
119 switch(request.drawing_effect)
122 SDL_RenderCopyEx(renderer, sdltexture->get_texture(), NULL, &dst_rect, 0, NULL, SDL_FLIP_VERTICAL);
125 case HORIZONTAL_FLIP:
126 SDL_RenderCopyEx(renderer, sdltexture->get_texture(), NULL, &dst_rect, 0, NULL, SDL_FLIP_HORIZONTAL);
131 SDL_RenderCopy(renderer, sdltexture->get_texture(), NULL, &dst_rect);
138 SDLRenderer::draw_surface_part(const DrawingRequest& request)
140 //FIXME: support parameters request.angle, request.blend
141 const SurfacePartRequest* surface = (const SurfacePartRequest*) request.request_data;
142 const SurfacePartRequest* surfacepartrequest = (SurfacePartRequest*) request.request_data;
144 boost::shared_ptr<SDLTexture> sdltexture = boost::dynamic_pointer_cast<SDLTexture>(surface->surface->get_texture());
147 src_rect.x = surfacepartrequest->source.x;
148 src_rect.y = surfacepartrequest->source.y;
149 src_rect.w = surfacepartrequest->size.x;
150 src_rect.h = surfacepartrequest->size.y;
153 dst_rect.x = request.pos.x;
154 dst_rect.y = request.pos.y;
155 dst_rect.w = surfacepartrequest->size.x;
156 dst_rect.h = surfacepartrequest->size.y;
158 Uint8 r = static_cast<Uint8>(request.color.red * 255);
159 Uint8 g = static_cast<Uint8>(request.color.green * 255);
160 Uint8 b = static_cast<Uint8>(request.color.blue * 255);
161 Uint8 a = static_cast<Uint8>(request.color.alpha * request.alpha * 255);
162 SDL_SetTextureColorMod(sdltexture->get_texture(), r, g, b);
163 SDL_SetTextureAlphaMod(sdltexture->get_texture(), a);
165 if (surface->surface->get_flipx())
167 SDL_RenderCopyEx(renderer, sdltexture->get_texture(), &src_rect, &dst_rect, 0, NULL, SDL_FLIP_HORIZONTAL);
171 switch(request.drawing_effect)
174 SDL_RenderCopyEx(renderer, sdltexture->get_texture(), &src_rect, &dst_rect, 0, NULL, SDL_FLIP_VERTICAL);
177 case HORIZONTAL_FLIP:
178 SDL_RenderCopyEx(renderer, sdltexture->get_texture(), &src_rect, &dst_rect, 0, NULL, SDL_FLIP_HORIZONTAL);
183 SDL_RenderCopy(renderer, sdltexture->get_texture(), &src_rect, &dst_rect);
190 SDLRenderer::draw_gradient(const DrawingRequest& request)
192 const GradientRequest* gradientrequest
193 = (GradientRequest*) request.request_data;
194 const Color& top = gradientrequest->top;
195 const Color& bottom = gradientrequest->bottom;
199 SDL_GetWindowSize(window, &w, &h);
201 // calculate the maximum number of steps needed for the gradient
202 int n = static_cast<int>(std::max(std::max(fabsf(top.red - bottom.red),
203 fabsf(top.green - bottom.green)),
204 std::max(fabsf(top.blue - bottom.blue),
205 fabsf(top.alpha - bottom.alpha))) * 255);
206 for(int i = 0; i < n; ++i)
212 rect.h = (h * (i+1) / n) - rect.y;
214 float p = static_cast<float>(i+1) / static_cast<float>(n);
215 Uint8 r = static_cast<Uint8>(((1.0f - p) * top.red + p * bottom.red) * 255);
216 Uint8 g = static_cast<Uint8>(((1.0f - p) * top.green + p * bottom.green) * 255);
217 Uint8 b = static_cast<Uint8>(((1.0f - p) * top.blue + p * bottom.blue) * 255);
218 Uint8 a = static_cast<Uint8>(((1.0f - p) * top.alpha + p * bottom.alpha) * 255);
220 SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);
221 SDL_SetRenderDrawColor(renderer, r, g, b, a);
222 SDL_RenderFillRect(renderer, &rect);
227 SDLRenderer::draw_filled_rect(const DrawingRequest& request)
229 const FillRectRequest* fillrectrequest
230 = (FillRectRequest*) request.request_data;
233 rect.x = request.pos.x;
234 rect.y = request.pos.y;
235 rect.w = fillrectrequest->size.x;
236 rect.h = fillrectrequest->size.y;
238 Uint8 r = static_cast<Uint8>(fillrectrequest->color.red * 255);
239 Uint8 g = static_cast<Uint8>(fillrectrequest->color.green * 255);
240 Uint8 b = static_cast<Uint8>(fillrectrequest->color.blue * 255);
241 Uint8 a = static_cast<Uint8>(fillrectrequest->color.alpha * 255);
243 int radius = std::min(std::min(rect.h / 2, rect.w / 2),
244 static_cast<int>(fillrectrequest->radius));
250 // rounded top and bottom parts
251 std::vector<SDL_Rect> rects;
252 rects.reserve(2*slices + 1);
253 for(int i = 0; i < slices; ++i)
255 float p = (static_cast<float>(i) + 0.5f) / static_cast<float>(slices);
256 int xoff = radius - static_cast<int>(sqrtf(1.0f - p*p) * radius);
259 tmp.x = rect.x + xoff;
260 tmp.y = rect.y + (radius - i);
261 tmp.w = rect.w - 2*(xoff);
263 rects.push_back(tmp);
266 tmp2.x = rect.x + xoff;
267 tmp2.y = rect.y + rect.h - radius + i;
268 tmp2.w = rect.w - 2*xoff;
273 rects.push_back(tmp2);
277 if (2*radius < rect.h)
282 tmp.y = rect.y + radius + 1;
284 tmp.h = rect.h - 2*radius - 1;
285 rects.push_back(tmp);
288 SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);
289 SDL_SetRenderDrawColor(renderer, r, g, b, a);
290 SDL_RenderFillRects(renderer, &*rects.begin(), rects.size());
294 if((rect.w != 0) && (rect.h != 0))
296 SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);
297 SDL_SetRenderDrawColor(renderer, r, g, b, a);
298 SDL_RenderFillRect(renderer, &rect);
304 SDLRenderer::draw_inverse_ellipse(const DrawingRequest& request)
306 const InverseEllipseRequest* ellipse = (InverseEllipseRequest*)request.request_data;
310 SDL_GetWindowSize(window, &window_w, &window_h);
312 float x = request.pos.x;
313 float w = ellipse->size.x;
314 float h = ellipse->size.y;
316 int top = request.pos.y - (h / 2);
318 const int max_slices = 256;
319 SDL_Rect rects[2*max_slices+2];
320 int slices = std::min(static_cast<int>(ellipse->size.y), max_slices);
321 for(int i = 0; i < slices; ++i)
323 float p = ((static_cast<float>(i) + 0.5f) / static_cast<float>(slices)) * 2.0f - 1.0f;
324 int xoff = static_cast<int>(sqrtf(1.0f - p*p) * w / 2);
326 SDL_Rect& left = rects[2*i+0];
327 SDL_Rect& right = rects[2*i+1];
330 left.y = top + (i * h / slices);
332 left.h = (top + ((i+1) * h / slices)) - left.y;
336 right.w = window_w - right.x;
340 SDL_Rect& top_rect = rects[2*slices+0];
341 SDL_Rect& bottom_rect = rects[2*slices+1];
345 top_rect.w = window_w;
349 bottom_rect.y = top + h;
350 bottom_rect.w = window_w;
351 bottom_rect.h = window_h - bottom_rect.y;
353 Uint8 r = static_cast<Uint8>(ellipse->color.red * 255);
354 Uint8 g = static_cast<Uint8>(ellipse->color.green * 255);
355 Uint8 b = static_cast<Uint8>(ellipse->color.blue * 255);
356 Uint8 a = static_cast<Uint8>(ellipse->color.alpha * 255);
358 SDL_SetRenderDrawBlendMode(renderer, SDL_BLENDMODE_BLEND);
359 SDL_SetRenderDrawColor(renderer, r, g, b, a);
360 SDL_RenderFillRects(renderer, rects, 2*slices+2);
364 SDLRenderer::do_take_screenshot()
366 // [Christoph] TODO: Yes, this method also takes care of the actual disk I/O. Split it?
369 if (SDL_GetRendererOutputSize(renderer, &width, &height) != 0)
371 log_warning << "SDL_GetRenderOutputSize failed: " << SDL_GetError() << std::endl;
375 #if SDL_BYTEORDER == SDL_BIG_ENDIAN
376 Uint32 rmask = 0xff000000;
377 Uint32 gmask = 0x00ff0000;
378 Uint32 bmask = 0x0000ff00;
379 Uint32 amask = 0x000000ff;
381 Uint32 rmask = 0x000000ff;
382 Uint32 gmask = 0x0000ff00;
383 Uint32 bmask = 0x00ff0000;
384 Uint32 amask = 0xff000000;
386 SDL_Surface* surface = SDL_CreateRGBSurface(0, width, height, 32,
387 rmask, gmask, bmask, amask);
390 log_warning << "SDL_CreateRGBSurface failed: " << SDL_GetError() << std::endl;
394 int ret = SDL_RenderReadPixels(renderer, NULL,
395 SDL_PIXELFORMAT_ABGR8888,
400 log_warning << "SDL_RenderReadPixels failed: " << SDL_GetError() << std::endl;
405 static const std::string writeDir = PHYSFS_getWriteDir();
406 static const std::string dirSep = PHYSFS_getDirSeparator();
407 static const std::string baseName = "screenshot";
408 static const std::string fileExt = ".bmp";
409 std::string fullFilename;
410 for (int num = 0; num < 1000; num++) {
411 std::ostringstream oss;
413 oss << std::setw(3) << std::setfill('0') << num;
415 std::string fileName = oss.str();
416 fullFilename = writeDir + dirSep + fileName;
417 if (!PHYSFS_exists(fileName.c_str())) {
418 SDL_SaveBMP(surface, fullFilename.c_str());
419 log_debug << "Wrote screenshot to \"" << fullFilename << "\"" << std::endl;
423 log_warning << "Did not save screenshot, because all files up to \"" << fullFilename << "\" already existed" << std::endl;
432 SDL_RenderPresent(renderer);
436 SDLRenderer::resize(int, int)
442 SDLRenderer::set_gamma(float gamma)
445 SDL_CalculateGammaRamp(gamma, ramp);
446 SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);