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author | truelight <truelight@openttd.org> | 2007-06-17 20:30:28 +0000 |
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committer | truelight <truelight@openttd.org> | 2007-06-17 20:30:28 +0000 |
commit | 003375d3755fe06227894e941b177491770c17fe (patch) | |
tree | e0105857aa1562ca3ca15a5e7df7e49bfc939456 /src/renderer/renderer.hpp | |
parent | b0b4820387ec6f0214b43dc61b452fa73ca8a09a (diff) | |
download | openttd-003375d3755fe06227894e941b177491770c17fe.tar.xz |
(svn r10190) -Codechange: merged renderer and blitter to one single class API: blitter
-Codechange: introduced a hierachy of blitters to avoid a lot of code duplication
Note: this allows much easier adding other types of video-drivers, like OpenGL
Diffstat (limited to 'src/renderer/renderer.hpp')
-rw-r--r-- | src/renderer/renderer.hpp | 165 |
1 files changed, 0 insertions, 165 deletions
diff --git a/src/renderer/renderer.hpp b/src/renderer/renderer.hpp deleted file mode 100644 index 7b7ad0f4f..000000000 --- a/src/renderer/renderer.hpp +++ /dev/null @@ -1,165 +0,0 @@ -/* $Id$ */ - -/** @file renderer.hpp */ - -#ifndef RENDERER_HPP -#define RENDERER_HPP - -#include <string> -#include <map> - -class Renderer { -public: - virtual ~Renderer() { } - - /** - * Move the destination pointer the requested amount x and y, keeping in mind - * any pitch and bpp of the renderer. - * @param video The destination pointer (video-buffer) to scroll. - * @param x How much you want to scroll to the right. - * @param y How much you want to scroll to the bottom. - * @return A new destination pointer moved the the requested place. - */ - virtual void *MoveTo(const void *video, int x, int y) = 0; - - /** - * Draw a pixel with a given color on the video-buffer. - * @param video The destination pointer (video-buffer). - * @param x The x position within video-buffer. - * @param y The y position within video-buffer. - * @param color A 8bpp mapping color. - */ - virtual void SetPixel(void *video, int x, int y, uint8 color) = 0; - - /** - * Draw a pixel with a given color on the video-buffer if there is currently a black pixel. - * @param video The destination pointer (video-buffer). - * @param x The x position within video-buffer. - * @param y The y position within video-buffer. - * @param color A 8bpp mapping color. - */ - virtual void SetPixelIfEmpty(void *video, int x, int y, uint8 color) = 0; - - /** - * Make a single horizontal line in a single color on the video-buffer. - * @param video The destination pointer (video-buffer). - * @param width The lenght of the line. - * @param color A 8bpp mapping color. - */ - virtual void SetHorizontalLine(void *video, int width, uint8 color) = 0; - - /** - * Copy from a buffer to the screen. - * @param video The destionation pointer (video-buffer). - * @param src The buffer from which the data will be read. - * @param width The width of the buffer. - * @param height The height of the buffer. - * @param src_pitch The pitch (byte per line) of the source buffer. - */ - virtual void CopyFromBuffer(void *video, const void *src, int width, int height, int src_pitch) = 0; - - /** - * Copy from the screen to a buffer. - * @param video The destination pointer (video-buffer). - * @param dst The buffer in which the data will be stored. - * @param width The width of the buffer. - * @param height The height of the buffer. - * @param dst_pitch The pitch (byte per line) of the destination buffer. - */ - virtual void CopyToBuffer(const void *video, void *dst, int width, int height, int dst_pitch) = 0; - - /** - * Move the videobuffer some places (via memmove). - * @param video_dst The destination pointer (video-buffer). - * @param video_src The source pointer (video-buffer). - * @param width The width of the buffer to move. - * @param height The height of the buffer to move. - */ - virtual void MoveBuffer(void *video_dst, const void *video_src, int width, int height) = 0; - - /** - * Calculate how much memory there is needed for an image of this size in the video-buffer. - * @param width The width of the buffer-to-be. - * @param height The height of the buffer-to-be. - * @return The size needed for the buffer. - */ - virtual int BufferSize(int width, int height) = 0; -}; - -/** - * The factory, keeping track of all renderers. - */ -class RendererFactoryBase { -private: - char *name; - typedef std::map<std::string, RendererFactoryBase *> Renderers; - - static Renderers &GetRenderers() - { - static Renderers &s_renderers = *new Renderers(); - return s_renderers; - } - -protected: - /** - * Register a renderer internally, based on his bpp. - * @param name the name of the renderer. - * @note an assert() will be trigger if 2 renderers with the same bpp try to register. - */ - void RegisterRenderer(const char *name) - { - /* Don't register nameless Renderers */ - if (name == NULL) return; - - this->name = strdup(name); - std::pair<Renderers::iterator, bool> P = GetRenderers().insert(Renderers::value_type(name, this)); - assert(P.second); - } - -public: - RendererFactoryBase() : - name(NULL) - { } - - virtual ~RendererFactoryBase() { if (this->name != NULL) GetRenderers().erase(this->name); free(this->name); } - - /** - * Find the requested renderer and return his class-instance. - * @param name the renderer to select. - */ - static Renderer *SelectRenderer(const char *name) - { - if (GetRenderers().size() == 0) return NULL; - - Renderers::iterator it = GetRenderers().begin(); - for (; it != GetRenderers().end(); it++) { - RendererFactoryBase *r = (*it).second; - if (strcasecmp(name, r->name) == 0) { - return r->CreateInstance(); - } - } - return NULL; - } - - /** - * Create an instance of this Renderer-class. - */ - virtual Renderer *CreateInstance() = 0; -}; - -/** - * A template factory, so ->GetBpp() works correctly. This because else some compiler will complain. - */ -template <class T> -class RendererFactory: public RendererFactoryBase { -public: - RendererFactory() { this->RegisterRenderer(((T *)this)->GetName()); } - - /** - * Get the name for this renderer. - */ - const char *GetName(); -}; - - -#endif /* RENDERER_HPP */ |