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Implement surface copy request, use it for egl gears.

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This commit is contained in:
Kristian Høgsberg 2008-11-08 15:06:01 -05:00
parent 1cbaa6abac
commit 78231c8dd0
5 changed files with 172 additions and 84 deletions
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13
gears.c
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@ -125,7 +125,8 @@ gear(GLfloat inner_radius, GLfloat outer_radius, GLfloat width,
}
struct gears *
gears_create(void)
gears_create(GLfloat clear_red, GLfloat clear_green,
GLfloat clear_blue, GLfloat clear_alpha)
{
static GLfloat red[4] = {0.8, 0.1, 0.0, 1.0};
static GLfloat green[4] = {0.0, 0.8, 0.2, 1.0};
@ -166,6 +167,14 @@ gears_create(void)
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
/* We're generating premultiplied alpha so multiply in the
* alpha. The gears are solid color and doesn't have
* anti-aliased edges, they're ok. */
glClearColor(clear_red * clear_alpha,
clear_green * clear_alpha,
clear_blue * clear_alpha,
clear_alpha);
return gears;
}
@ -174,7 +183,7 @@ gears_draw(struct gears *gears, GLfloat angle)
{
GLfloat view_rotx = 20.0, view_roty = 30.0, view_rotz = 0.0;
glClear(GL_DEPTH_BUFFER_BIT);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();