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Diffstat (limited to 'progs/egl/xeglgears.c')
-rw-r--r--progs/egl/xeglgears.c226
1 files changed, 171 insertions, 55 deletions
diff --git a/progs/egl/xeglgears.c b/progs/egl/xeglgears.c
index efb63ef3c9..a6a977d9ff 100644
--- a/progs/egl/xeglgears.c
+++ b/progs/egl/xeglgears.c
@@ -32,6 +32,9 @@
*/
+#define GL_GLEXT_PROTOTYPES
+#define EGL_EGLEXT_PROTOTYPES
+
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
@@ -42,6 +45,8 @@
#include <GL/gl.h>
#include <EGL/egl.h>
+#include <EGL/eglext.h>
+
#define BENCHMARK
@@ -335,9 +340,13 @@ struct egl_manager {
EGLSurface win;
EGLSurface pix;
EGLSurface pbuf;
+ EGLImageKHR image;
EGLBoolean verbose;
EGLint major, minor;
+
+ GC gc;
+ GLuint fbo;
};
static struct egl_manager *
@@ -469,6 +478,8 @@ egl_manager_create_window(struct egl_manager *eman, const char *name,
}
}
+ eman->gc = XCreateGC(eman->xdpy, eman->xwin, 0, NULL);
+
XMapWindow(eman->xdpy, eman->xwin);
return EGL_TRUE;
@@ -525,20 +536,28 @@ egl_manager_destroy(struct egl_manager *eman)
if (eman->xpix != None)
XFreePixmap(eman->xdpy, eman->xpix);
+ XFreeGC(eman->xdpy, eman->gc);
+
free(eman);
}
-enum { GEARS_WINDOW, GEARS_PIXMAP, GEARS_PBUFFER_COPY, GEARS_PBUFFER_TEXTURE };
+enum {
+ GEARS_WINDOW,
+ GEARS_PIXMAP,
+ GEARS_PIXMAP_TEXTURE,
+ GEARS_PBUFFER,
+ GEARS_PBUFFER_TEXTURE,
+ GEARS_RENDERBUFFER
+};
static void
-texture_gears(struct egl_manager *eman)
+texture_gears(struct egl_manager *eman, int surface_type)
{
static const GLint verts[12] =
{ -5, -6, -10, 5, -6, -10, -5, 4, 10, 5, 4, 10 };
static const GLint tex_coords[8] = { 0, 0, 1, 0, 0, 1, 1, 1 };
- static const GLuint indices[4] = { 0, 1, 2, 3 };
- eglMakeCurrent(eman->dpy, eman->pix, eman->pix, eman->ctx);
+ eglMakeCurrent(eman->dpy, eman->win, eman->win, eman->ctx);
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
@@ -554,22 +573,42 @@ texture_gears(struct egl_manager *eman)
glVertexPointer(3, GL_INT, 0, verts);
glTexCoordPointer(2, GL_INT, 0, tex_coords);
- eglBindTexImage(eman->dpy, eman->pbuf, EGL_BACK_BUFFER);
+ if (surface_type == GEARS_PBUFFER_TEXTURE)
+ eglBindTexImage(eman->dpy, eman->pbuf, EGL_BACK_BUFFER);
- glDrawElements(GL_TRIANGLE_STRIP, 4, GL_UNSIGNED_INT, indices);
+ glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisable(GL_TEXTURE_2D);
- eglReleaseTexImage(eman->dpy, eman->pbuf, EGL_BACK_BUFFER);
+ if (surface_type == GEARS_PBUFFER_TEXTURE)
+ eglReleaseTexImage(eman->dpy, eman->pbuf, EGL_BACK_BUFFER);
+
+ eglSwapBuffers(eman->dpy, eman->win);
+}
+
+static void
+copy_gears(struct egl_manager *eman,
+ EGLint tile_w, EGLint tile_h, EGLint w, EGLint h)
+{
+ int x, y;
+
+ eglWaitClient();
+
+ for (x = 0; x < w; x += tile_w) {
+ for (y = 0; y < h; y += tile_h) {
+
+ XCopyArea(eman->xdpy, eman->xpix, eman->xwin, eman->gc,
+ 0, 0, tile_w, tile_h, x, y);
+ }
+ }
}
static void
event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
{
- GC gc = XCreateGC(eman->xdpy, eman->xwin, 0, NULL);
- EGLint orig_w = w, orig_h = h;
+ int window_w = w, window_h = h;
if (surface_type == EGL_PBUFFER_BIT)
printf("there will be no screen update if "
@@ -584,10 +623,10 @@ event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
/* we'll redraw below */
break;
case ConfigureNotify:
- w = event.xconfigure.width;
- h = event.xconfigure.height;
+ window_w = event.xconfigure.width;
+ window_h = event.xconfigure.height;
if (surface_type == EGL_WINDOW_BIT)
- reshape(w, h);
+ reshape(window_w, window_h);
break;
case KeyPress:
{
@@ -622,7 +661,6 @@ event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
static int frames = 0;
static double tRot0 = -1.0, tRate0 = -1.0;
double dt, t = current_time();
- int x, y;
if (tRot0 < 0.0)
tRot0 = t;
dt = t - tRot0;
@@ -633,34 +671,43 @@ event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
if (angle > 3600.0)
angle -= 3600.0;
- if (surface_type == GEARS_PBUFFER_TEXTURE)
- eglMakeCurrent(eman->dpy, eman->pbuf, eman->pbuf, eman->ctx);
-
- draw();
switch (surface_type) {
case GEARS_WINDOW:
+ draw();
eglSwapBuffers(eman->dpy, eman->win);
break;
- case GEARS_PBUFFER_TEXTURE:
- case GEARS_PBUFFER_COPY:
- if (surface_type == GEARS_PBUFFER_TEXTURE) {
- texture_gears(eman);
- } else {
- if (!eglCopyBuffers(eman->dpy, eman->pbuf, eman->xpix))
- break;
- }
- eglWaitClient();
- /* fall through */
- case GEARS_PIXMAP:
- eglWaitClient();
- for (x = 0; x < w; x += orig_w) {
- for (y = 0; y < h; y += orig_h) {
- XCopyArea(eman->xdpy, eman->xpix, eman->xwin, gc,
- 0, 0, orig_w, orig_h, x, y);
- }
- }
- break;
- }
+
+ case GEARS_PBUFFER:
+ draw();
+ if (!eglCopyBuffers(eman->dpy, eman->pbuf, eman->xpix))
+ break;
+ copy_gears(eman, w, h, window_w, window_h);
+ break;
+
+ case GEARS_PBUFFER_TEXTURE:
+ eglMakeCurrent(eman->dpy, eman->pbuf, eman->pbuf, eman->ctx);
+ draw();
+ texture_gears(eman, surface_type);
+ break;
+
+ case GEARS_PIXMAP:
+ draw();
+ copy_gears(eman, w, h, window_w, window_h);
+ break;
+
+ case GEARS_PIXMAP_TEXTURE:
+ eglMakeCurrent(eman->dpy, eman->pix, eman->pix, eman->ctx);
+ draw();
+ texture_gears(eman, surface_type);
+ break;
+
+ case GEARS_RENDERBUFFER:
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, eman->fbo);
+ draw();
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, 0);
+ texture_gears(eman, surface_type);
+ break;
+ }
frames++;
@@ -676,8 +723,6 @@ event_loop(struct egl_manager *eman, EGLint surface_type, EGLint w, EGLint h)
}
}
}
-
- XFreeGC(eman->xdpy, gc);
}
@@ -689,10 +734,20 @@ usage(void)
printf(" -fullscreen run in fullscreen mode\n");
printf(" -info display OpenGL renderer info\n");
printf(" -pixmap use pixmap surface\n");
- printf(" -pbuffer-copy use pbuffer surface and eglCopyBuffers\n");
+ printf(" -pixmap-texture use pixmap surface and texture using EGLImage\n");
+ printf(" -pbuffer use pbuffer surface and eglCopyBuffers\n");
printf(" -pbuffer-texture use pbuffer surface and eglBindTexImage\n");
+ printf(" -renderbuffer renderbuffer as EGLImage and bind as texture from\n");
}
+static const char *names[] = {
+ "window",
+ "pixmap",
+ "pixmap_texture",
+ "pbuffer",
+ "pbuffer_texture",
+ "renderbuffer"
+};
int
main(int argc, char *argv[])
@@ -715,6 +770,7 @@ main(int argc, char *argv[])
GLboolean printInfo = GL_FALSE;
GLboolean fullscreen = GL_FALSE;
EGLBoolean ret;
+ GLuint texture, color_rb, depth_rb;
int i;
for (i = 1; i < argc; i++) {
@@ -732,14 +788,21 @@ main(int argc, char *argv[])
surface_type = GEARS_PIXMAP;
attribs[1] = EGL_PIXMAP_BIT;
}
- else if (strcmp(argv[i], "-pbuffer-copy") == 0) {
- surface_type = GEARS_PBUFFER_COPY;
+ else if (strcmp(argv[i], "-pixmap-texture") == 0) {
+ surface_type = GEARS_PIXMAP_TEXTURE;
+ attribs[1] = EGL_PIXMAP_BIT;
+ }
+ else if (strcmp(argv[i], "-pbuffer") == 0) {
+ surface_type = GEARS_PBUFFER;
attribs[1] = EGL_PBUFFER_BIT;
}
else if (strcmp(argv[i], "-pbuffer-texture") == 0) {
surface_type = GEARS_PBUFFER_TEXTURE;
attribs[1] = EGL_PBUFFER_BIT;
}
+ else if (strcmp(argv[i], "-renderbuffer") == 0) {
+ surface_type = GEARS_RENDERBUFFER;
+ }
else {
usage();
return -1;
@@ -761,28 +824,32 @@ main(int argc, char *argv[])
return -1;
}
- snprintf(win_title, sizeof(win_title), "xeglgears (%s)",
- (surface_type == GEARS_WINDOW) ? "window" :
- (surface_type == GEARS_PIXMAP) ? "pixmap" : "pbuffer");
+ snprintf(win_title, sizeof(win_title),
+ "xeglgears (%s)", names[surface_type]);
+
+ ret = egl_manager_create_window(eman, win_title, winWidth, winHeight,
+ EGL_TRUE, fullscreen, NULL);
+ if (!ret)
+ return -1;
/* create surface(s) */
switch (surface_type) {
case GEARS_WINDOW:
- ret = egl_manager_create_window(eman, win_title, winWidth, winHeight,
- EGL_TRUE, fullscreen, NULL);
if (ret)
ret = eglMakeCurrent(eman->dpy, eman->win, eman->win, eman->ctx);
break;
case GEARS_PIXMAP:
- ret = (egl_manager_create_window(eman, win_title, winWidth, winHeight,
- EGL_FALSE, fullscreen, NULL) &&
- egl_manager_create_pixmap(eman, eman->xwin,
- EGL_TRUE, NULL));
+ case GEARS_PIXMAP_TEXTURE:
+ ret = egl_manager_create_pixmap(eman, eman->xwin, EGL_TRUE, NULL);
+ if (surface_type == GEARS_PIXMAP_TEXTURE)
+ eman->image = eglCreateImageKHR (eman->dpy, eman->ctx,
+ EGL_NATIVE_PIXMAP_KHR,
+ (EGLClientBuffer) eman->xpix, NULL);
if (ret)
ret = eglMakeCurrent(eman->dpy, eman->pix, eman->pix, eman->ctx);
break;
+ case GEARS_PBUFFER:
case GEARS_PBUFFER_TEXTURE:
- case GEARS_PBUFFER_COPY:
{
EGLint pbuf_attribs[] = {
EGL_WIDTH, winWidth,
@@ -791,20 +858,69 @@ main(int argc, char *argv[])
EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
EGL_NONE
};
- ret = (egl_manager_create_window(eman, win_title, winWidth, winHeight,
- EGL_FALSE, fullscreen, NULL) &&
- egl_manager_create_pixmap(eman, eman->xwin,
+ ret = (egl_manager_create_pixmap(eman, eman->xwin,
EGL_TRUE, NULL) &&
egl_manager_create_pbuffer(eman, pbuf_attribs));
if (ret)
ret = eglMakeCurrent(eman->dpy, eman->pbuf, eman->pbuf, eman->ctx);
}
break;
+
+
+ case GEARS_RENDERBUFFER:
+ ret = eglMakeCurrent(eman->dpy, eman->win, eman->win, eman->ctx);
+ if (ret == EGL_FALSE)
+ printf("failed to make context current\n");
+
+ glGenFramebuffers(1, &eman->fbo);
+ glBindFramebuffer(GL_FRAMEBUFFER_EXT, eman->fbo);
+
+ glGenRenderbuffers(1, &color_rb);
+ glBindRenderbuffer(GL_RENDERBUFFER_EXT, color_rb);
+ glRenderbufferStorage(GL_RENDERBUFFER_EXT, GL_RGBA, winWidth, winHeight);
+ glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+ GL_COLOR_ATTACHMENT0_EXT,
+ GL_RENDERBUFFER_EXT,
+ color_rb);
+
+ eman->image = eglCreateImageKHR(eman->dpy, eman->ctx,
+ EGL_GL_RENDERBUFFER_KHR,
+ (EGLClientBuffer) color_rb, NULL);
+
+ glGenRenderbuffers(1, &depth_rb);
+ glBindRenderbuffer(GL_RENDERBUFFER_EXT, depth_rb);
+ glRenderbufferStorage(GL_RENDERBUFFER_EXT,
+ GL_DEPTH_COMPONENT, winWidth, winHeight);
+ glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
+ GL_DEPTH_ATTACHMENT_EXT,
+ GL_RENDERBUFFER_EXT,
+ depth_rb);
+
+ if (glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE) {
+ printf("framebuffer not complete\n");
+ exit(1);
+ }
+
+ break;
+
default:
ret = EGL_FALSE;
break;
}
+ switch (surface_type) {
+ case GEARS_PIXMAP_TEXTURE:
+ case GEARS_RENDERBUFFER:
+ glGenTextures(1, &texture);
+ glBindTexture(GL_TEXTURE_2D, texture);
+ glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, eman->image);
+ break;
+ case GEARS_PBUFFER_TEXTURE:
+ glGenTextures(1, &texture);
+ glBindTexture(GL_TEXTURE_2D, texture);
+ break;
+ }
+
if (!ret) {
egl_manager_destroy(eman);
XCloseDisplay(x_dpy);
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