/* \brief set shader for render pass */
GLHCKAPI void glhckRenderPassShader(glhckShader *shader)
{
GLHCK_INITIALIZED();
CALL(2, "%p", shader);
if (GLHCKRP()->shader) glhckShaderFree(GLHCKRP()->shader);
if (shader) GLHCKRP()->shader = glhckShaderRef(shader);
else GLHCKRP()->shader = NULL;
}
/* \brief set clear color to render */
GLHCKAPI void glhckRenderClearColor(const glhckColorb *color)
{
GLHCK_INITIALIZED();
CALL(2, "%p", color);
if (!_glhckRenderInitialized()) return;
GLHCKRA()->clearColor(color);
memcpy(&GLHCKRP()->clearColor, color, sizeof(glhckColorb));
}
/* \brief set renderer's viewport */
GLHCKAPI void glhckRenderViewport(const glhckRect *viewport)
{
kmMat4 ortho;
GLHCK_INITIALIZED();
CALL(1, RECTS, RECT(viewport));
assert(viewport->x >= 0 && viewport->y >= 0 && viewport->w > 0 && viewport->h > 0);
if (!_glhckRenderInitialized()) return;
/* set viewport on render */
GLHCKRA()->viewport(viewport->x, viewport->y, viewport->w, viewport->h);
memcpy(&GLHCKRP()->viewport, viewport, sizeof(glhckRect));
/* update orthographic matrix */
kmMat4OrthographicProjection(&ortho, viewport->x, viewport->w, viewport->h, viewport->y, -1.0f, 1.0f);
GLHCKRA()->setOrthographic(&ortho);
memcpy(&GLHCKRD()->view.orthographic, &ortho, sizeof(kmMat4));
}
/* \brief set needed state from pass data */
static void rPassState(void)
{
/* front face */
GLPOINTER()->state.frontFace = GLHCKRP()->frontFace;
/* cull face */
GLPOINTER()->state.cullFace = GLHCKRP()->cullFace;
/* disabled pass bits override the above.
* it means that we don't want something for this render pass. */
if (!(GLHCKRP()->flags & GLHCK_PASS_DEPTH))
GLPOINTER()->state.flags &= ~GL_STATE_DEPTH;
if (!(GLHCKRP()->flags & GLHCK_PASS_CULL))
GLPOINTER()->state.flags &= ~GL_STATE_CULL;
if (!(GLHCKRP()->flags & GLHCK_PASS_BLEND))
GLPOINTER()->state.flags &= ~GL_STATE_BLEND;
if (!(GLHCKRP()->flags & GLHCK_PASS_TEXTURE))
GLPOINTER()->state.flags &= ~GL_STATE_TEXTURE;
if (!(GLHCKRP()->flags & GLHCK_PASS_DRAW_OBB))
GLPOINTER()->state.flags &= ~GL_STATE_DRAW_OBB;
if (!(GLHCKRP()->flags & GLHCK_PASS_DRAW_AABB))
GLPOINTER()->state.flags &= ~GL_STATE_DRAW_AABB;
if (!(GLHCKRP()->flags & GLHCK_PASS_DRAW_SKELETON))
GLPOINTER()->state.flags &= ~GL_STATE_DRAW_SKELETON;
if (!(GLHCKRP()->flags & GLHCK_PASS_DRAW_WIREFRAME))
GLPOINTER()->state.flags &= ~GL_STATE_DRAW_WIREFRAME;
if (!(GLHCKRP()->flags & GLHCK_PASS_LIGHTING))
GLPOINTER()->state.flags &= ~GL_STATE_LIGHTING;
/* pass blend override */
if (GLHCKRP()->blenda != GLHCK_ZERO || GLHCKRP()->blendb != GLHCK_ZERO) {
GLPOINTER()->state.flags |= GL_STATE_BLEND;
GLPOINTER()->state.blenda = GLHCKRP()->blenda;
GLPOINTER()->state.blendb = GLHCKRP()->blendb;
}
/* overdraw state */
if (!(GLHCKRP()->flags & GLHCK_PASS_OVERDRAW)) {
GLPOINTER()->state.flags &= ~GL_STATE_OVERDRAW;
} else {
GLPOINTER()->state.flags &= ~GL_STATE_TEXTURE;
GLPOINTER()->state.flags &= ~GL_STATE_LIGHTING;
GLPOINTER()->state.flags |= GL_STATE_OVERDRAW;
GLPOINTER()->state.flags |= GL_STATE_BLEND;
GLPOINTER()->state.blenda = GLHCK_ONE;
GLPOINTER()->state.blendb = GLHCK_ONE;
}
GLPOINTER()->state.attrib[GLHCK_ATTRIB_TEXTURE] = (GLPOINTER()->state.flags & GL_STATE_TEXTURE);
}
/* \brief set render pass cull face side */
GLHCKAPI void glhckRenderCullFace(glhckCullFaceType face)
{
GLHCK_INITIALIZED();
CALL(2, "%d", face);
GLHCKRP()->cullFace = face;
}
/* \brief set render pass front face orientation */
GLHCKAPI void glhckRenderFrontFace(glhckFaceOrientation orientation)
{
GLHCK_INITIALIZED();
CALL(2, "%d", orientation);
GLHCKRP()->frontFace = orientation;
}
/* \brief set render pass flags */
GLHCKAPI void glhckRenderPass(unsigned int flags)
{
GLHCK_INITIALIZED();
CALL(2, "%u", flags);
GLHCKRP()->flags = flags;
}
