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[client] opengl: implement & fix opengl support

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This commit is contained in:
Geoffrey McRae
2021-01-27 21:27:26 +11:00
parent 740dad943b
commit 973806dd9c
8 changed files with 175 additions and 40 deletions
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2
client/displayservers/X11/CMakeLists.txt
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@@ -14,6 +14,8 @@ add_library(displayserver_X11 STATIC
x11.c
)
add_definitions(-D GLX_GLXEXT_PROTOTYPES)
target_link_libraries(displayserver_X11
${DISPLAYSERVER_X11_PKGCONFIG_LIBRARIES}
lg_common

74
client/displayservers/X11/x11.c
View File

@@ -31,10 +31,14 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include <X11/extensions/Xinerama.h>
#include <GL/glx.h>
#include <GL/glxext.h>
#ifdef ENABLE_EGL
#include <EGL/eglext.h>
#include "egl_dynprocs.h"
#endif
#include "app.h"
#include "egl_dynprocs.h"
#include "common/debug.h"
#include "common/thread.h"
@@ -44,9 +48,10 @@ Place, Suite 330, Boston, MA 02111-1307 USA
struct X11DSState
{
Display * display;
Window window;
int xinputOp;
Display * display;
Window window;
XVisualInfo * visual;
int xinputOp;
LGThread * eventThread;
@@ -137,6 +142,36 @@ static bool x11Init(const LG_DSInitParams params)
PropertyChangeMask |
ExposureMask
};
unsigned long swaMask = CWEventMask;
if (params.opengl)
{
GLint glXAttribs[] =
{
GLX_RGBA,
GLX_DEPTH_SIZE , 24,
GLX_STENCIL_SIZE , 0,
GLX_RED_SIZE , 8,
GLX_GREEN_SIZE , 8,
GLX_BLUE_SIZE , 8,
GLX_SAMPLE_BUFFERS, 0,
GLX_SAMPLES , 0,
None
};
x11.visual = glXChooseVisual(x11.display,
XDefaultScreen(x11.display), glXAttribs);
if (!x11.visual)
{
DEBUG_ERROR("glXChooseVisual failed");
goto fail_display;
}
swa.colormap = XCreateColormap(x11.display, XDefaultRootWindow(x11.display),
x11.visual->visual, AllocNone);
swaMask |= CWColormap;
}
x11.window = XCreateWindow(
x11.display,
@@ -144,8 +179,10 @@ static bool x11Init(const LG_DSInitParams params)
params.x, params.y,
params.w, params.h,
0,
CopyFromParent, InputOutput,
CopyFromParent, CWEventMask,
x11.visual ? x11.visual->depth : CopyFromParent,
InputOutput,
x11.visual ? x11.visual->visual : CopyFromParent,
swaMask,
&swa);
if (!x11.window)
@@ -835,6 +872,27 @@ static void x11EGLSwapBuffers(EGLDisplay display, EGLSurface surface)
}
#endif
static LG_DSGLContext x11GLCreateContext(void)
{
return (LG_DSGLContext)
glXCreateContext(x11.display, x11.visual, NULL, GL_TRUE);
}
static void x11GLDeleteContext(LG_DSGLContext context)
{
glXDestroyContext(x11.display, (GLXContext)context);
}
static void x11GLMakeCurrent(LG_DSGLContext context)
{
glXMakeCurrent(x11.display, x11.window, (GLXContext)context);
}
static void x11GLSetSwapInterval(int interval)
{
glXSwapIntervalEXT(x11.display, x11.window, interval);
}
static void x11GLSwapBuffers(void)
{
glXSwapBuffers(x11.display, x11.window);
@@ -1391,6 +1449,10 @@ struct LG_DisplayServerOps LGDS_X11 =
.getEGLNativeWindow = x11GetEGLNativeWindow,
.eglSwapBuffers = x11EGLSwapBuffers,
#endif
.glCreateContext = x11GLCreateContext,
.glDeleteContext = x11GLDeleteContext,
.glMakeCurrent = x11GLMakeCurrent,
.glSetSwapInterval = x11GLSetSwapInterval,
.glSwapBuffers = x11GLSwapBuffers,
.showPointer = x11ShowPointer,
.grabPointer = x11GrabPointer,