void
rut_camera_flush (RutCamera *camera)
{
_rut_camera_flush_transforms (camera);
if (camera->clear_fb)
{
cogl_framebuffer_clear4f (camera->fb,
COGL_BUFFER_BIT_COLOR |
COGL_BUFFER_BIT_DEPTH |
COGL_BUFFER_BIT_STENCIL,
cogl_color_get_red_float (&camera->bg_color),
cogl_color_get_green_float (&camera->bg_color),
cogl_color_get_blue_float (&camera->bg_color),
cogl_color_get_alpha_float (&camera->bg_color));
}
}
static gboolean
_cogl_pipeline_fragend_fixed_end (CoglPipeline *pipeline,
unsigned long pipelines_difference)
{
int highest_unit_index = -1;
int i;
_COGL_GET_CONTEXT (ctx, FALSE);
_cogl_pipeline_foreach_layer_internal (pipeline,
get_highest_unit_index_cb,
&highest_unit_index);
/* Disable additional texture units that may have previously been in use.. */
for (i = highest_unit_index + 1; i < ctx->texture_units->len; i++)
_cogl_disable_texture_unit (i);
if (pipelines_difference & COGL_PIPELINE_STATE_FOG)
{
CoglPipeline *authority =
_cogl_pipeline_get_authority (pipeline, COGL_PIPELINE_STATE_FOG);
CoglPipelineFogState *fog_state = &authority->big_state->fog_state;
if (fog_state->enabled)
{
GLfloat fogColor[4];
GLenum gl_mode = GL_LINEAR;
fogColor[0] = cogl_color_get_red_float (&fog_state->color);
fogColor[1] = cogl_color_get_green_float (&fog_state->color);
fogColor[2] = cogl_color_get_blue_float (&fog_state->color);
fogColor[3] = cogl_color_get_alpha_float (&fog_state->color);
GE (ctx, glEnable (GL_FOG));
GE (ctx, glFogfv (GL_FOG_COLOR, fogColor));
if (ctx->driver == COGL_DRIVER_GLES1)
switch (fog_state->mode)
{
case COGL_FOG_MODE_LINEAR:
gl_mode = GL_LINEAR;
break;
case COGL_FOG_MODE_EXPONENTIAL:
gl_mode = GL_EXP;
break;
case COGL_FOG_MODE_EXPONENTIAL_SQUARED:
gl_mode = GL_EXP2;
break;
}
/* TODO: support other modes for GLES2 */
/* NB: GLES doesn't have glFogi */
GE (ctx, glFogf (GL_FOG_MODE, gl_mode));
GE (ctx, glHint (GL_FOG_HINT, GL_NICEST));
GE (ctx, glFogf (GL_FOG_DENSITY, fog_state->density));
GE (ctx, glFogf (GL_FOG_START, fog_state->z_near));
GE (ctx, glFogf (GL_FOG_END, fog_state->z_far));
}
else
GE (ctx, glDisable (GL_FOG));
}
return TRUE;
}
