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Fix reflection code to preserve aspect ratio.

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This commit is contained in:
gb 2010-03-29 16:24:37 +00:00
parent fc05ddf201
commit 63a0dfcd3f
1 changed files with 18 additions and 15 deletions
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33
sys/vaapisink/gstvaapisink.c
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@ -322,16 +322,18 @@ render_background(GstVaapiSink *sink)
static void
render_frame(GstVaapiSink *sink)
{
const guint w = sink->window_width;
const guint h = sink->window_height;
const guint x1 = sink->display_rect.x;
const guint x2 = sink->display_rect.x + sink->display_rect.width;
const guint y1 = sink->display_rect.y;
const guint y2 = sink->display_rect.y + sink->display_rect.height;
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glBegin(GL_QUADS);
{
glTexCoord2f(0.0f, 0.0f); glVertex2i(0, 0);
glTexCoord2f(0.0f, 1.0f); glVertex2i(0, h);
glTexCoord2f(1.0f, 1.0f); glVertex2i(w, h);
glTexCoord2f(1.0f, 0.0f); glVertex2i(w, 0);
glTexCoord2f(0.0f, 0.0f); glVertex2i(x1, y1);
glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y2);
glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y2);
glTexCoord2f(1.0f, 0.0f); glVertex2i(x2, y1);
}
glEnd();
}
@ -339,20 +341,21 @@ render_frame(GstVaapiSink *sink)
static void
render_reflection(GstVaapiSink *sink)
{
const guint w = sink->window_width;
const guint h = sink->window_height;
const guint rh = h / 5;
GLfloat ry = 1.0f - (GLfloat)rh / (GLfloat)h;
const guint x1 = sink->display_rect.x;
const guint x2 = sink->display_rect.x + sink->display_rect.width;
const guint y1 = sink->display_rect.y;
const guint rh = sink->display_rect.height / 5;
GLfloat ry = 1.0f - (GLfloat)rh / (GLfloat)sink->display_rect.height;
glBegin(GL_QUADS);
{
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
glTexCoord2f(0.0f, 1.0f); glVertex2i(0, 0);
glTexCoord2f(1.0f, 1.0f); glVertex2i(w, 0);
glTexCoord2f(0.0f, 1.0f); glVertex2i(x1, y1);
glTexCoord2f(1.0f, 1.0f); glVertex2i(x2, y1);
glColor4f(1.0f, 1.0f, 1.0f, 0.0f);
glTexCoord2f(1.0f, ry); glVertex2i(w, rh);
glTexCoord2f(0.0f, ry); glVertex2i(0, rh);
glTexCoord2f(1.0f, ry); glVertex2i(x2, y1 + rh);
glTexCoord2f(0.0f, ry); glVertex2i(x1, y1 + rh);
}
glEnd();
}
@ -383,7 +386,7 @@ gst_vaapisink_show_frame_glx(GstVaapiSink *sink)
glTranslatef(50.0f, 0.0f, 0.0f);
render_frame(sink);
glPushMatrix();
glTranslatef(0.0, (GLfloat)sink->window_height + 5.0f, 0.0f);
glTranslatef(0.0, (GLfloat)sink->display_rect.height + 5.0f, 0.0f);
render_reflection(sink);
glPopMatrix();
glPopMatrix();