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Use FBOs instead of eagle-specific API

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This commit is contained in:
Kristian Høgsberg 2010-01-24 18:10:15 -05:00
parent 450cc8136d
commit a341fa016c
7 changed files with 127 additions and 129 deletions
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92
gears.c
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@ -32,6 +32,7 @@
#include <glib.h>
#include <cairo-drm.h>
#define GL_GLEXT_PROTOTYPES
#include <GL/gl.h>
#include <eagle.h>
@ -52,14 +53,13 @@ struct gears {
struct rectangle rectangle;
EGLDisplay display;
EGLConfig config;
EGLSurface surface;
EGLContext context;
int resized;
GLfloat angle;
cairo_surface_t *cairo_surface;
GLint gear_list[3];
GLuint fbo, color_rbo, depth_rbo;
};
struct gear_template {
@ -258,19 +258,20 @@ resize_window(struct gears *gears)
window_draw(gears->window);
if (gears->surface != NULL)
eglDestroySurface(gears->display, gears->surface);
glBindRenderbuffer(GL_RENDERBUFFER_EXT, gears->color_rbo);
glRenderbufferStorage(GL_RENDERBUFFER_EXT,
GL_RGBA,
gears->rectangle.width,
gears->rectangle.height);
gears->surface = eglCreateSurface(gears->display,
gears->config,
gears->rectangle.width,
gears->rectangle.height,
1, NULL);
eglMakeCurrent(gears->display,
gears->surface, gears->surface, gears->context);
glBindRenderbuffer(GL_RENDERBUFFER_EXT, gears->depth_rbo);
glRenderbufferStorage(GL_RENDERBUFFER_EXT,
GL_DEPTH_COMPONENT,
gears->rectangle.width,
gears->rectangle.height);
glViewport(0, 0, gears->rectangle.width, gears->rectangle.height);
gears->resized = 0;
}
@ -308,13 +309,12 @@ handle_acknowledge(void *data,
{
struct gears *gears = data;
if (key != 0)
return;
if (key == 10) {
if (gears->resized)
resize_window(gears);
if (gears->resized)
resize_window(gears);
draw_gears(gears);
draw_gears(gears);
}
}
static void
@ -322,14 +322,20 @@ handle_frame(void *data,
struct wl_compositor *compositor,
uint32_t frame, uint32_t timestamp)
{
struct gears *gears = data;
uint32_t name, handle, stride;
struct gears *gears = data;
GLint name, stride;
eglGetColorBuffer(gears->surface, 0, &name, &handle, &stride);
glBindRenderbuffer(GL_RENDERBUFFER_EXT, gears->color_rbo);
glGetRenderbufferParameteriv(GL_RENDERBUFFER_EXT,
GL_RENDERBUFFER_STRIDE_INTEL,
&stride);
glGetRenderbufferParameteriv(GL_RENDERBUFFER_EXT,
GL_RENDERBUFFER_NAME_INTEL,
&name);
window_copy(gears->window, &gears->rectangle, name, stride);
wl_compositor_commit(gears->compositor, 0);
window_commit(gears->window, 10);
gears->angle = (GLfloat) (timestamp % 8192) * 360 / 8192.0;
}
@ -339,19 +345,11 @@ static const struct wl_compositor_listener compositor_listener = {
handle_frame,
};
static const EGLint config_attribs[] = {
EGL_DEPTH_SIZE, 24,
EGL_CONFIG_CAVEAT, EGL_NONE,
EGL_RED_SIZE, 8,
EGL_NONE
};
static struct gears *
gears_create(struct display *display)
{
const int x = 200, y = 200, width = 450, height = 500;
EGLint major, minor, count;
EGLConfig configs[64];
EGLint major, minor;
struct udev *udev;
struct udev_device *device;
struct gears *gears;
@ -373,18 +371,29 @@ gears_create(struct display *display)
if (!eglInitialize(gears->display, &major, &minor))
die("failed to initialize display\n");
if (!eglGetConfigs(gears->display, configs, 64, &count))
die("failed to get configs\n");
if (!eglChooseConfig(gears->display, config_attribs, &gears->config, 1, NULL))
die("failed to pick a config\n");
gears->context = eglCreateContext(gears->display, gears->config, NULL, NULL);
gears->context = eglCreateContext(gears->display, NULL, NULL, NULL);
if (gears->context == NULL)
die("failed to create context\n");
resize_window(gears);
if (!eglMakeCurrent(gears->display, NULL, NULL, gears->context))
die("faile to make context current\n");
glGenFramebuffers(1, &gears->fbo);
glBindFramebuffer(GL_FRAMEBUFFER_EXT, gears->fbo);
glGenRenderbuffers(1, &gears->color_rbo);
glBindRenderbuffer(GL_RENDERBUFFER_EXT, gears->color_rbo);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER_EXT,
GL_COLOR_ATTACHMENT0_EXT,
GL_RENDERBUFFER_EXT,
gears->color_rbo);
glGenRenderbuffers(1, &gears->depth_rbo);
glBindRenderbuffer(GL_RENDERBUFFER_EXT, gears->depth_rbo);
glFramebufferRenderbuffer(GL_DRAW_FRAMEBUFFER_EXT,
GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT,
gears->depth_rbo);
for (i = 0; i < 3; i++) {
gears->gear_list[i] = glGenLists(1);
glNewList(gears->gear_list[i], GL_COMPILE);
@ -406,10 +415,13 @@ gears_create(struct display *display)
glEnable(GL_DEPTH_TEST);
glClearColor(0, 0, 0, 0.92);
if (glCheckFramebufferStatus (GL_FRAMEBUFFER_EXT) != GL_FRAMEBUFFER_COMPLETE)
fprintf(stderr, "framebuffer incomplete\n");
gears->compositor = display_get_compositor(display);
resize_window(gears);
draw_gears(gears);
handle_frame(gears, gears->compositor, 0, 0);
window_set_resize_handler(gears->window, resize_handler, gears);