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[client] egl: actually do front buffer rendering

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This commit is contained in:
Geoffrey McRae 2020-12-31 15:31:24 +11:00
parent 1e4e582f67
commit bf1eba15d1
2 changed files with 31 additions and 6 deletions
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35
client/renderers/EGL/egl.c
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@ -48,6 +48,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
struct Options
{
bool vsync;
bool doubleBuffer;
};
struct Inst
@ -175,7 +176,8 @@ bool egl_create(void ** opaque, const LG_RendererParams params)
struct Inst * this = (struct Inst *)*opaque;
memcpy(&this->params, &params, sizeof(LG_RendererParams));
this->opt.vsync = option_get_bool("egl", "vsync");
this->opt.vsync = option_get_bool("egl", "vsync");
this->opt.doubleBuffer = option_get_bool("egl", "doubleBuffer");
this->translateX = 0;
this->translateY = 0;
@ -196,11 +198,11 @@ bool egl_create(void ** opaque, const LG_RendererParams params)
bool egl_initialize(void * opaque, Uint32 * sdlFlags)
{
const bool doubleBuffer = option_get_bool("egl", "doubleBuffer");
DEBUG_INFO("Double buffering is %s", doubleBuffer ? "on" : "off");
struct Inst * this = (struct Inst *)opaque;
DEBUG_INFO("Double buffering is %s", this->opt.doubleBuffer ? "on" : "off");
*sdlFlags = SDL_WINDOW_OPENGL;
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER , doubleBuffer ? 1 : 0);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER , this->opt.doubleBuffer ? 1 : 0);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK , SDL_GL_CONTEXT_PROFILE_CORE);
if (option_get_bool("egl", "multisample"))
@ -500,7 +502,13 @@ bool egl_render_startup(void * opaque, SDL_Window * window)
return false;
}
this->surface = eglCreateWindowSurface(this->display, this->configs, this->nativeWind, NULL);
const EGLint surfattr[] =
{
EGL_RENDER_BUFFER, this->opt.doubleBuffer ? EGL_BACK_BUFFER : EGL_SINGLE_BUFFER,
EGL_NONE
};
this->surface = eglCreateWindowSurface(this->display, this->configs, this->nativeWind, surfattr);
if (this->surface == EGL_NO_SURFACE)
{
DEBUG_ERROR("Failed to create EGL surface (eglError: 0x%x)", eglGetError());
@ -520,6 +528,23 @@ bool egl_render_startup(void * opaque, SDL_Window * window)
return false;
}
EGLint rb = 0;
eglQuerySurface(this->display, this->surface, EGL_RENDER_BUFFER, &rb);
switch(rb)
{
case EGL_SINGLE_BUFFER:
DEBUG_INFO("Single buffer mode");
break;
case EGL_BACK_BUFFER:
DEBUG_INFO("Back buffer mode");
break;
default:
DEBUG_WARN("Unknown render buffer mode: %d", rb);
break;
}
eglMakeCurrent(this->display, this->surface, this->surface, this->context);
const char *client_exts = eglQueryString(this->display, EGL_EXTENSIONS);

2
client/renderers/EGL/texture.c
View File

@ -32,7 +32,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include <SDL2/SDL_egl.h>
/* this must be a multiple of 2 */
#define BUFFER_COUNT 2
#define BUFFER_COUNT 4
struct Buffer
{