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[client] implemented renderer specific option API

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Please note the vsync and mipmap options are now specific to OpenGL
To configure them use the following options:

  -o opengl:mipmap=1
  -o opengl:vsync=0
This commit is contained in:
Geoffrey McRae 2017-12-17 22:21:59 +11:00
parent f3e19b743c
commit 06e38d897d
6 changed files with 244 additions and 43 deletions
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1
client/Makefile
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@ -15,6 +15,7 @@ BIN ?= bin
CFLAGS += -DBUILD_VERSION='"$(shell git describe --always --long --dirty --abbrev=10 --tags)"'
OBJS = main.o \
lg-renderer.o \
spice/spice.o \
ivshmem/ivshmem.o \
renderers/opengl.o

50
client/lg-renderer.c Normal file
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@ -0,0 +1,50 @@
/*
Looking Glass - KVM FrameRelay (KVMFR) Client
Copyright (C) 2017 Geoffrey McRae <geoff@hostfission.com>
https://looking-glass.hostfission.com
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
PARTICULAR PURPOSE. See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "lg-renderer.h"
#include <string.h>
bool LG_RendererValidatorBool(const char * value)
{
if (!value)
return false;
return
(strcasecmp(value, "1" ) == 0) ||
(strcasecmp(value, "0" ) == 0) ||
(strcasecmp(value, "true" ) == 0) ||
(strcasecmp(value, "false" ) == 0) ||
(strcasecmp(value, "yes" ) == 0) ||
(strcasecmp(value, "no" ) == 0) ||
(strcasecmp(value, "on" ) == 0) ||
(strcasecmp(value, "off" ) == 0) ||
(strcasecmp(value, "enable" ) == 0) ||
(strcasecmp(value, "disable") == 0);
}
bool LG_RendererValueToBool(const char * value)
{
return
(strcasecmp(value, "1" ) == 0) ||
(strcasecmp(value, "true" ) == 0) ||
(strcasecmp(value, "yes" ) == 0) ||
(strcasecmp(value, "on" ) == 0) ||
(strcasecmp(value, "enable" ) == 0);
}

44
client/lg-renderer.h
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@ -26,6 +26,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#define IS_LG_RENDERER_VALID(x) \
((x)->get_name && \
(x)->create && \
(x)->initialize && \
(x)->configure && \
(x)->deconfigure && \
@ -36,14 +37,33 @@ Place, Suite 330, Boston, MA 02111-1307 USA
(x)->on_mouse_event && \
(x)->render)
#define LGR_OPTION_COUNT(x) (sizeof(x) / sizeof(LG_RendererOpt))
typedef bool(* LG_RendererOptValidator)(const char * value);
typedef void(* LG_RendererOptHandler )(void * opaque, const char * value);
typedef struct LG_RendererOpt
{
const char * name;
const char * desc;
LG_RendererOptValidator validator;
LG_RendererOptHandler handler;
}
LG_RendererOpt;
typedef struct LG_RendererOptValue
{
const LG_RendererOpt * opt;
const char * value;
} LG_RendererOptValue;
typedef LG_RendererOpt * LG_RendererOptions;
typedef struct LG_RendererParams
{
int argc;
const char ** argv;
TTF_Font * font;
bool showFPS;
bool resample;
bool vsync;
TTF_Font * font;
bool showFPS;
bool vsync;
}
LG_RendererParams;
@ -75,7 +95,8 @@ typedef enum LG_RendererCursor
LG_RendererCursor;
typedef const char * (* LG_RendererGetName )();
typedef bool (* LG_RendererInitialize )(void ** opaque, const LG_RendererParams params, Uint32 * sdlFlags);
typedef bool (* LG_RendererCreate )(void ** opaque, const LG_RendererParams params);
typedef bool (* LG_RendererInitialize )(void * opaque, Uint32 * sdlFlags);
typedef bool (* LG_RendererConfigure )(void * opaque, SDL_Window *window, const LG_RendererFormat format);
typedef void (* LG_RendererDeConfigure )(void * opaque);
typedef void (* LG_RendererDeInitialize )(void * opaque);
@ -88,7 +109,10 @@ typedef bool (* LG_RendererRender )(void * opaque);
typedef struct LG_Renderer
{
LG_RendererCreate create;
LG_RendererGetName get_name;
LG_RendererOptions options;
unsigned int option_count;
LG_RendererInitialize initialize;
LG_RendererConfigure configure;
LG_RendererDeConfigure deconfigure;
@ -100,4 +124,8 @@ typedef struct LG_Renderer
LG_RendererOnFrameEvent on_frame_event;
LG_RendererRender render;
}
LG_Renderer;
LG_Renderer;
// generic option helpers
bool LG_RendererValidatorBool(const char * value);
bool LG_RendererValueToBool (const char * value);

4
client/lg-renderers.h
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@ -27,4 +27,6 @@ const LG_Renderer * LG_Renderers[] =
{
&LGR_OpenGL,
NULL // end of array sentinal
};
};
#define LG_RENDERER_COUNT ((sizeof(LG_Renderers) / sizeof(LG_Renderer *)) - 1)

131
client/main.c
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@ -63,9 +63,16 @@ struct AppState
unsigned int shmSize;
};
typedef struct RenderOpts
{
unsigned int size;
unsigned int argc;
LG_RendererOptValue * argv;
}
RendererOpts;
struct AppParams
{
bool vsync;
bool autoResize;
bool allowResize;
bool keepAspect;
@ -75,7 +82,6 @@ struct AppParams
int x, y;
unsigned int w, h;
const char * ivshmemSocket;
bool useMipmap;
bool showFPS;
bool useSpice;
const char * spiceHost;
@ -84,15 +90,12 @@ struct AppParams
bool hideMouse;
bool ignoreQuit;
unsigned int rendererOptSize;
unsigned int rendererOptCount;
const char ** rendererOpts;
RendererOpts rendererOpts[LG_RENDERER_COUNT];
};
struct AppState state;
struct AppParams params =
{
.vsync = true,
.autoResize = false,
.allowResize = true,
.keepAspect = true,
@ -104,7 +107,6 @@ struct AppParams params =
.w = 1024,
.h = 768,
.ivshmemSocket = "/tmp/ivshmem_socket",
.useMipmap = true,
.showFPS = false,
.useSpice = true,
.spiceHost = "127.0.0.1",
@ -720,33 +722,41 @@ int run()
}
LG_RendererParams lgrParams;
lgrParams.argc = params.rendererOptCount;
lgrParams.argv = params.rendererOpts;
lgrParams.font = state.font;
lgrParams.resample = params.useMipmap;
lgrParams.showFPS = params.showFPS;
lgrParams.vsync = params.vsync;
Uint32 sdlFlags;
// probe for a a suitable renderer
for(const LG_Renderer **r = &LG_Renderers[0]; *r; ++r)
for(unsigned int i = 0; i < LG_RENDERER_COUNT; ++i)
{
if (!IS_LG_RENDERER_VALID(*r))
const LG_Renderer *r = LG_Renderers[i];
RendererOpts *opts = &params.rendererOpts[i];
if (!IS_LG_RENDERER_VALID(r))
{
DEBUG_ERROR("FIXME: Renderer %d is invalid, skipping", (int)(r - &LG_Renderers[0]));
DEBUG_ERROR("FIXME: Renderer %d is invalid, skipping", i);
continue;
}
// create the renderer
state.lgrData = NULL;
sdlFlags = 0;
if (!(*r)->initialize(&state.lgrData, lgrParams, &sdlFlags))
if (!r->create(&state.lgrData, lgrParams))
continue;
// set it's options
for(unsigned int i = 0; i < opts->argc; ++i)
opts->argv[i].opt->handler(state.lgrData, opts->argv[i].value);
// initialize the renderer
sdlFlags = 0;
if (!r->initialize(state.lgrData, &sdlFlags))
{
(*r)->deinitialize(state.lgrData);
r->deinitialize(state.lgrData);
continue;
}
state.lgr = *r;
DEBUG_INFO("Initialized %s", (*r)->get_name());
state.lgr = r;
DEBUG_INFO("Initialized %s", r->get_name());
break;
}
@ -939,10 +949,8 @@ void doHelp(char * app)
" -j Disable cursor position scaling\n"
" -M Don't hide the host cursor\n"
"\n"
" -m Disable mipmapping\n"
" -v Disable VSYNC\n"
" -k Enable FPS display\n"
" -o FLAG Specify a renderer flag\n"
" -o FLAG Specify a renderer option (ie: opengl:vsync=0)\n"
"\n"
" -a Auto resize the window to the guest\n"
" -n Don't allow the window to be manually resized\n"
@ -996,7 +1004,7 @@ void doLicense()
int main(int argc, char * argv[])
{
int c;
while((c = getopt(argc, argv, "hf:sc:p:jMmvko:anrdFx:y:w:b:Ql")) != -1)
while((c = getopt(argc, argv, "hf:sc:p:jMvko:anrdFx:y:w:b:Ql")) != -1)
switch(c)
{
case '?':
@ -1029,19 +1037,79 @@ int main(int argc, char * argv[])
params.hideMouse = false;
break;
case 'm':
params.useMipmap = false;
break;
case 'v':
params.vsync = false;
break;
case 'k':
params.showFPS = true;
break;
case 'o':
{
const LG_Renderer * renderer = NULL;
RendererOpts * opts = NULL;
const size_t len = strlen(optarg);
const char * name = strtok(optarg, ":");
for(unsigned int i = 0; i < LG_RENDERER_COUNT; ++i)
if (strcasecmp(LG_Renderers[i]->get_name(), name) == 0)
{
renderer = LG_Renderers[i];
opts = &params.rendererOpts[i];
break;
}
if (!renderer)
{
fprintf(stderr, "No such renderer: %s\n", name);
doHelp(argv[0]);
return -1;
}
const char * option = strtok(NULL , "=");
if (!option)
{
fprintf(stderr, "Renderer option name not specified\n");
doHelp(argv[0]);
return -1;
}
const LG_RendererOpt * opt = NULL;
for(unsigned int i = 0; i < renderer->option_count; ++i)
if (strcasecmp(option, renderer->options[i].name) == 0)
{
opt = &renderer->options[i];
break;
}
if (!opt)
{
fprintf(stderr, "Renderer \"%s\" doesn't have the option: %s\n", renderer->get_name(), option);
doHelp(argv[0]);
return -1;
}
const char * value = NULL;
if (len > strlen(name) + strlen(option) + 2)
value = option + strlen(option) + 1;
if (opt->validator && !opt->validator(value))
{
fprintf(stderr, "Renderer \"%s\" reported Invalid value for option \"%s\"\n", renderer->get_name(), option);
doHelp(argv[0]);
return -1;
}
if (opts->argc == opts->size)
{
opts->size += 5;
opts->argv = realloc(opts->argv, sizeof(LG_RendererOptValue) * opts->size);
}
opts->argv[opts->argc].opt = opt;
opts->argv[opts->argc].value = value;
++opts->argc;
break;
}
#if 0
if (params.rendererOptCount == params.rendererOptSize)
{
params.rendererOptSize += 5;
@ -1050,6 +1118,7 @@ int main(int argc, char * argv[])
params.rendererOptSize * sizeof(char *));
}
params.rendererOpts[params.rendererOptCount++] = optarg;
#endif
break;
case 'a':

57
client/renderers/opengl.c
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@ -43,9 +43,23 @@ Place, Suite 330, Boston, MA 02111-1307 USA
static PFNGLXGETVIDEOSYNCSGIPROC glXGetVideoSyncSGI = NULL;
static PFNGLXWAITVIDEOSYNCSGIPROC glXWaitVideoSyncSGI = NULL;
struct Options
{
bool mipmap;
bool vsync;
};
static struct Options defaultOptions =
{
.mipmap = true,
.vsync = true
};
struct LGR_OpenGL
{
LG_RendererParams params;
struct Options opt;
bool configured;
SDL_Window * sdlWindow;
SDL_GLContext glContext;
@ -104,7 +118,7 @@ const char * lgr_opengl_get_name()
return "OpenGL";
}
bool lgr_opengl_initialize(void ** opaque, const LG_RendererParams params, Uint32 * sdlFlags)
bool lgr_opengl_create(void ** opaque, const LG_RendererParams params)
{
// create our local storage
*opaque = malloc(sizeof(struct LGR_OpenGL));
@ -116,7 +130,17 @@ bool lgr_opengl_initialize(void ** opaque, const LG_RendererParams params, Uint3
memset(*opaque, 0, sizeof(struct LGR_OpenGL));
struct LGR_OpenGL * this = (struct LGR_OpenGL *)*opaque;
memcpy(&this->params, &params, sizeof(LG_RendererParams));
memcpy(&this->params, &params , sizeof(LG_RendererParams));
memcpy(&this->opt , &defaultOptions, sizeof(struct Options ));
return true;
}
bool lgr_opengl_initialize(void * opaque, Uint32 * sdlFlags)
{
struct LGR_OpenGL * this = (struct LGR_OpenGL *)opaque;
if (!this)
return false;
if (!glXGetVideoSyncSGI)
{
@ -629,7 +653,7 @@ bool lgr_opengl_on_frame_event(void * opaque, const uint8_t * data)
// unbind the buffer
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
const bool mipmap = this->params.resample && (
const bool mipmap = this->opt.mipmap && (
(this->format.width > this->destRect.w) ||
(this->format.height > this->destRect.h));
@ -756,9 +780,36 @@ bool lgr_opengl_render(void * opaque)
return true;
}
static void handle_opt_mipmap(void * opaque, const char *value)
{
struct LGR_OpenGL * this = (struct LGR_OpenGL *)opaque;
if (!this)
return;
this->opt.mipmap = LG_RendererValueToBool(value);
}
static void handle_opt_vsync(void * opaque, const char *value)
{
struct LGR_OpenGL * this = (struct LGR_OpenGL *)opaque;
if (!this)
return;
this->opt.vsync = LG_RendererValueToBool(value);
}
static LG_RendererOpt lgr_opengl_options[] =
{
{ .name = "mipmap", .validator = LG_RendererValidatorBool, .handler = handle_opt_mipmap },
{ .name = "vsync" , .validator = LG_RendererValidatorBool, .handler = handle_opt_vsync }
};
const LG_Renderer LGR_OpenGL =
{
.get_name = lgr_opengl_get_name,
.options = lgr_opengl_options,
.option_count = LGR_OPTION_COUNT(lgr_opengl_options),
.create = lgr_opengl_create,
.initialize = lgr_opengl_initialize,
.configure = lgr_opengl_configure,
.deconfigure = lgr_opengl_deconfigure,