diff options
Diffstat (limited to 'backends/graphics/opengl/opengl-graphics.h')
| -rw-r--r-- | backends/graphics/opengl/opengl-graphics.h | 88 |
1 files changed, 76 insertions, 12 deletions
diff --git a/backends/graphics/opengl/opengl-graphics.h b/backends/graphics/opengl/opengl-graphics.h index cec970e0cc..35435c156e 100644 --- a/backends/graphics/opengl/opengl-graphics.h +++ b/backends/graphics/opengl/opengl-graphics.h @@ -24,6 +24,7 @@ #define BACKENDS_GRAPHICS_OPENGL_OPENGL_GRAPHICS_H #include "backends/graphics/opengl/opengl-sys.h" +#include "backends/graphics/opengl/framebuffer.h" #include "backends/graphics/graphics.h" #include "common/frac.h" @@ -40,7 +41,11 @@ namespace OpenGL { // SurfaceSDL backend enables it and disabling it can cause issues in sdl.cpp. #define USE_OSD 1 -class Texture; +class Surface; +class Pipeline; +#if !USE_FORCED_GLES +class Shader; +#endif enum { GFX_LINEAR = 0, @@ -117,6 +122,11 @@ public: protected: /** + * Whether an GLES or GLES2 context is active. + */ + bool isGLESContext() const { return g_context.type == kContextGLES || g_context.type == kContextGLES2; } + + /** * Set up the actual screen size available for the OpenGL code to do any * drawing. * @@ -126,6 +136,16 @@ protected: void setActualScreenSize(uint width, uint height); /** + * Sets the OpenGL (ES) type the graphics manager shall work with. + * + * This needs to be called at least once (and before ever calling + * notifyContextCreate). + * + * @param type Type of the OpenGL (ES) contexts to be created. + */ + void setContextType(ContextType type); + + /** * Notify the manager of a OpenGL context change. This should be the first * thing to call after you created an OpenGL (ES) context! * @@ -172,15 +192,15 @@ protected: private: /** - * Create a texture with the specified pixel format. + * Create a surface with the specified pixel format. * - * @param format The pixel format the Texture object should accept as + * @param format The pixel format the Surface object should accept as * input. - * @param wantAlpha For CLUT8 textures this marks whether an alpha + * @param wantAlpha For CLUT8 surfaces this marks whether an alpha * channel should be used. - * @return A pointer to the texture or nullptr on failure. + * @return A pointer to the surface or nullptr on failure. */ - Texture *createTexture(const Graphics::PixelFormat &format, bool wantAlpha = false); + Surface *createSurface(const Graphics::PixelFormat &format, bool wantAlpha = false); // // Transaction support @@ -263,6 +283,11 @@ protected: virtual bool loadVideoMode(uint requestedWidth, uint requestedHeight, const Graphics::PixelFormat &format) = 0; /** + * Refresh the screen contents. + */ + virtual void refreshScreen() = 0; + + /** * Save a screenshot of the full display as BMP to the given file. This * uses Common::DumpFile for writing the screenshot. * @@ -276,6 +301,36 @@ private: // /** + * Initialize the active context for use. + */ + void initializeGLContext(); + + /** + * Render back buffer. + */ + Backbuffer _backBuffer; + + /** + * OpenGL pipeline used for rendering. + */ + Pipeline *_pipeline; + +protected: + /** + * Query the address of an OpenGL function by name. + * + * This can only be used after a context has been created. + * Please note that this function can return valid addresses even if the + * OpenGL context does not support the function. + * + * @param name The name of the OpenGL function. + * @return An function pointer for the requested OpenGL function or + * nullptr in case of failure. + */ + virtual void *getProcAddress(const char *name) const = 0; + +private: + /** * Try to determine the internal parameters for a given pixel format. * * @return true when the format can be used, false otherwise. @@ -343,7 +398,7 @@ private: /** * The virtual game screen. */ - Texture *_gameScreen; + Surface *_gameScreen; /** * The game palette if in CLUT8 mode. @@ -362,7 +417,7 @@ private: /** * The overlay screen. */ - Texture *_overlay; + Surface *_overlay; /** * Whether the overlay is visible or not. @@ -381,7 +436,7 @@ private: /** * The cursor image. */ - Texture *_cursor; + Surface *_cursor; /** * X coordinate of the cursor in phyiscal coordinates. @@ -464,10 +519,19 @@ private: */ byte _cursorPalette[3 * 256]; + // + // Misc + // + + /** + * Whether the screen contents shall be forced to redrawn. + */ + bool _forceRedraw; + /** - * Draws a rectangle + * Number of frames glClear shall ignore scissor testing. */ - void drawRect(GLfloat x, GLfloat y, GLfloat w, GLfloat h); + uint _scissorOverride; #ifdef USE_OSD // @@ -483,7 +547,7 @@ private: /** * The OSD's contents. */ - Texture *_osd; + Surface *_osd; /** * Current opacity level of the OSD. |