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[client] all: properly support guest rotation

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If the guest has it's output rotated (ie, landscape) we must rotate and
translate the pointer draw location, as well as all the translations of
cursor coordinate spaces based on the rotation, along with any local
rotations that may also be applied.
This commit is contained in:
Geoffrey McRae
2021-01-19 02:44:56 +11:00
parent 733bbf5153
commit 8a1578230f
9 changed files with 340 additions and 152 deletions
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15
client/include/interface/renderer.h
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@@ -66,6 +66,10 @@ typedef enum LG_RendererRotate
}
LG_RendererRotate;
// kept out of the enum so gcc doesn't warn when it's missing from a switch
// statement.
#define LG_ROTATE_MAX (LG_ROTATE_270+1)
typedef struct LG_RendererFormat
{
FrameType type; // frame type
@@ -74,7 +78,7 @@ typedef struct LG_RendererFormat
unsigned int stride; // scanline width (zero if compresed)
unsigned int pitch; // scanline bytes (or compressed size)
unsigned int bpp; // bits per pixel (zero if compressed)
LG_RendererRotate rotate; // output rotation
LG_RendererRotate rotate; // guest rotation
}
LG_RendererFormat;
@@ -107,13 +111,14 @@ typedef bool (* LG_RendererInitialize )(void * opaque, Uint32 * sdlFla
typedef void (* LG_RendererDeInitialize )(void * opaque);
typedef bool (* LG_RendererSupports )(void * opaque, LG_RendererSupport support);
typedef void (* LG_RendererOnRestart )(void * opaque);
typedef void (* LG_RendererOnResize )(void * opaque, const int width, const int height, const LG_RendererRect destRect);
typedef bool (* LG_RendererOnMouseShape )(void * opaque, const LG_RendererCursor cursor, const int width, const int height, const LG_RendererRotate rotate, const int pitch, const uint8_t * data);
typedef void (* LG_RendererOnResize )(void * opaque, const int width, const int height, const LG_RendererRect destRect, LG_RendererRotate rotate);
typedef bool (* LG_RendererOnMouseShape )(void * opaque, const LG_RendererCursor cursor, const int width, const int height, const int pitch, const uint8_t * data);
typedef bool (* LG_RendererOnMouseEvent )(void * opaque, const bool visible , const int x, const int y);
typedef bool (* LG_RendererOnFrameFormat)(void * opaque, const LG_RendererFormat format, bool useDMA);
typedef bool (* LG_RendererOnFrame )(void * opaque, const FrameBuffer * frame, int dmaFD);
typedef void (* LG_RendererOnAlert )(void * opaque, const LG_MsgAlert alert, const char * message, bool ** closeFlag);
typedef bool (* LG_RendererRender )(void * opaque, SDL_Window *window);
typedef bool (* LG_RendererRenderStartup)(void * opaque, SDL_Window *window);
typedef bool (* LG_RendererRender )(void * opaque, SDL_Window *window, LG_RendererRotate rotate);
typedef void (* LG_RendererUpdateFPS )(void * opaque, const float avgUPS, const float avgFPS);
typedef struct LG_Renderer
@@ -132,7 +137,7 @@ typedef struct LG_Renderer
LG_RendererOnFrameFormat on_frame_format;
LG_RendererOnFrame on_frame;
LG_RendererOnAlert on_alert;
LG_RendererRender render_startup;
LG_RendererRenderStartup render_startup;
LG_RendererRender render;
LG_RendererUpdateFPS update_fps;
}