void racing_loop( scalar_t time_step )
{
int width, height;
player_data_t *plyr = get_player_data( local_player() );
bool_t joy_paddling = False;
bool_t joy_braking = False;
bool_t joy_charging = False;
bool_t airborne;
vector_t dir;
scalar_t speed;
scalar_t terrain_weights[NumTerrains];
int new_terrain = 0;
int slide_volume;
dir = plyr->vel;
speed = normalize_vector(&dir);
airborne = plyr->airborne;
width = getparam_x_resolution();
height = getparam_y_resolution();
check_gl_error();
new_frame_for_fps_calc();
update_audio();
clear_rendering_context();
setup_fog();
/* Update braking */
plyr->control.is_braking = (bool_t) ( braking || joy_braking );
if ( airborne ) {
new_terrain = (1<<NumTerrains);
/*
* Tricks
*/
if ( trick_modifier) {
if (left_turn) {
plyr->control.barrel_roll_left = True;
}
if (right_turn) {
plyr->control.barrel_roll_right = True;
}
if (paddling) {
plyr->control.front_flip = True;
}
if (plyr->control.is_braking) {
plyr->control.back_flip = True;
}
//Par défaut ca fait un front flip
if(!plyr->control.front_flip && !plyr->control.back_flip &&
!plyr->control.barrel_roll_right && !plyr->control.barrel_roll_left )
{
plyr->control.back_flip = True;
}
#ifdef __APPLE__
TRDebugLog("tricks : %d",plyr->tricks);
#endif
}
} else {
get_surface_type(plyr->pos.x, plyr->pos.z, terrain_weights);
if (terrain_weights[Snow] > 0) {
new_terrain |= (1<<Snow);
}
if (terrain_weights[Rock] > 0) {
new_terrain |= (1<<Rock);
}
if (terrain_weights[Ice] > 0) {
new_terrain |= (1<<Ice);
}
}
/*
* Jumping
*/
calc_jump_amt( time_step );
if ( ( charging || joy_charging ) &&
!plyr->control.jump_charging && !plyr->control.jumping )
{
plyr->control.jump_charging = True;
charge_start_time = g_game.time;
}
if ( ( !charging && !joy_charging ) && plyr->control.jump_charging ) {
plyr->control.jump_charging = False;
plyr->control.begin_jump = True;
}
/*
* Turning
*/
scalar_t iPhone_turn_fact=accelerometerTurnFact();
iPhone_turn_fact=accelerometerTurnFact();
/*left_turn and right_turn are informations useful for tricks*/
if (iPhone_turn_fact>TURN_FACTOR_LIMIT) {
left_turn=false;
right_turn=true;
}
else if (iPhone_turn_fact<-TURN_FACTOR_LIMIT) {
left_turn=true;
right_turn=false;
} else left_turn = right_turn = false;
plyr->control.turn_fact = iPhone_turn_fact;
plyr->control.turn_animation = iPhone_turn_fact;
/*
* Paddling
*/
if ( ( paddling || joy_paddling ) && plyr->control.is_paddling == False ) {
plyr->control.is_paddling = True;
plyr->control.paddle_time = g_game.time;
}
/*
* Play flying sound (__APPLE__ : and add Flying time to plyr->control.fly_total_time)
*/
if (new_terrain & (1<<NumTerrains)) {
set_sound_volume("flying_sound", min(128, speed*2));
if (!(last_terrain & (1<<NumTerrains))) {
play_sound( "flying_sound", -1 );
plyr->control.is_flying=true;
plyr->control.fly_start_time = g_game.time;
}
} else {
if (last_terrain & (1<<NumTerrains)) {
plyr->control.is_flying=false;
plyr->control.fly_end_time = g_game.time;
if (plyr->control.fly_end_time-plyr->control.fly_start_time>FLYING_TIME_LIMIT) {
plyr->control.fly_total_time += plyr->control.fly_end_time-plyr->control.fly_start_time;
}
halt_sound( "flying_sound" );
}
}
/*
* Play sliding sound
*/
slide_volume = min( (((pow(plyr->control.turn_fact, 2)*128)) +
(plyr->control.is_braking?128:0) +
(plyr->control.jumping?128:0) +
20) *
(speed/10), 128 );
if (new_terrain & (1<<Snow)) {
set_sound_volume("snow_sound", slide_volume * terrain_weights[Snow]);
if (!(last_terrain & (1<<Snow))) {
play_sound( "snow_sound", -1 );
}
} else {
if (last_terrain & (1<<Snow)) {
halt_sound( "snow_sound" );
}
}
if (new_terrain & (1<<Rock)) {
//set_sound_volume("rock_sound", 128*pow((speed/2), 2) * terrain_weights[Rock]);
int rockvol = slide_volume * 10 * terrain_weights[Rock];
if (rockvol > 400)
rockvol = 400;
set_sound_volume("rock_sound", rockvol);
if (!(last_terrain & (1<<Rock))) {
play_sound( "rock_sound", -1 );
}
} else {
if (last_terrain & (1<<Rock)) {
halt_sound( "rock_sound" );
}
}
if (new_terrain & (1<<Ice)) {
set_sound_volume("ice_sound", slide_volume * terrain_weights[Ice]);
if (!(last_terrain & (1<<Ice))) {
play_sound( "ice_sound", -1 );
}
} else {
if (last_terrain & (1<<Ice)) {
halt_sound( "ice_sound" );
}
}
last_terrain = new_terrain;
/*
* gs
*/
bool roll = plyr->control.barrel_roll_left || plyr->control.barrel_roll_right;
bool flip = plyr->control.front_flip || plyr->control.back_flip;
if(roll && plyr->control.barrel_roll_factor == 0)
{
if(flip)
{
if(plyr->control.barrel_roll_left)
add_new_bonus("Hyper heavy Jump", get_score_for_trick(HYPER_HEAVY_JUMP));
else
add_new_bonus("Ray star hybrid Jump", get_score_for_trick(RAY_STAR_HYBRID_JUMP));
}
else
{
if(plyr->control.barrel_roll_left)
add_new_bonus("Roll Left", get_score_for_trick(ROLL_LEFT));
else
add_new_bonus("Roll Right", get_score_for_trick(ROLL_RIGHT));
}
}
if(flip && plyr->control.flip_factor == 0)
{
if(roll)
{
if(plyr->control.back_flip)
add_new_bonus("Saturn ice Fever", get_score_for_trick(SATURN_ICE_FEVER));
else
add_new_bonus("Wild pinguin Show", get_score_for_trick(WILD_PINGUIN_SHOW));
}
else
{
if(plyr->control.back_flip)
add_new_bonus("Back Flip", get_score_for_trick(BACK_FLIP));
else
add_new_bonus("Barlow's Wheel", get_score_for_trick(BARLOWS_WHEEL));
}
}
if (roll) {
plyr->tricks+=1;
plyr->control.barrel_roll_factor +=
( plyr->control.barrel_roll_left ? -1 : 1 ) * 0.05 * time_step / 0.05;
if ( (plyr->control.barrel_roll_factor > 1) ||
(plyr->control.barrel_roll_factor < -1) ) {
plyr->control.barrel_roll_factor = 0;
plyr->control.barrel_roll_left = plyr->control.barrel_roll_right = False;
}
}
if (flip) {
plyr->tricks+=1;
plyr->control.flip_factor +=
( plyr->control.back_flip ? -1 : 1 ) * 0.05 * time_step / 0.05;
if ( (plyr->control.flip_factor > 1) ||
(plyr->control.flip_factor < -1) ) {
plyr->control.flip_factor = 0;
plyr->control.front_flip = plyr->control.back_flip = False;
}
}
update_player_pos( plyr, time_step );
/*
* Track Marks
*/
add_track_mark( plyr );
update_view( plyr, time_step );
setup_view_frustum( plyr, NEAR_CLIP_DIST,
getparam_forward_clip_distance() );
draw_sky(plyr->view.pos);
draw_fog_plane();
set_course_clipping( True );
set_course_eye_point( plyr->view.pos );
setup_course_lighting();
render_course();
draw_trees();
if ( getparam_draw_particles() ) {
update_particles( time_step );
draw_particles( plyr );
}
draw_tux();
draw_tux_shadow();
draw_hud( plyr );
draw_hud_training(plyr);
reshape( width, height );
winsys_swap_buffers();
g_game.time += time_step;
}
static void brw_emit_vertices(struct brw_context *brw)
{
struct gl_context *ctx = &brw->intel.ctx;
struct intel_context *intel = intel_context(ctx);
GLuint i, nr_elements;
brw_prepare_vertices(brw);
brw_emit_query_begin(brw);
/* If the VS doesn't read any inputs (calculating vertex position from
* a state variable for some reason, for example), emit a single pad
* VERTEX_ELEMENT struct and bail.
*
* The stale VB state stays in place, but they don't do anything unless
* a VE loads from them.
*/
if (brw->vb.nr_enabled == 0) {
BEGIN_BATCH(3);
OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | 1);
if (intel->gen >= 6) {
OUT_BATCH((0 << GEN6_VE0_INDEX_SHIFT) |
GEN6_VE0_VALID |
(BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) |
(0 << BRW_VE0_SRC_OFFSET_SHIFT));
} else {
OUT_BATCH((0 << BRW_VE0_INDEX_SHIFT) |
BRW_VE0_VALID |
(BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) |
(0 << BRW_VE0_SRC_OFFSET_SHIFT));
}
OUT_BATCH((BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_0_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) |
(BRW_VE1_COMPONENT_STORE_1_FLT << BRW_VE1_COMPONENT_3_SHIFT));
CACHED_BATCH();
return;
}
/* Now emit VB and VEP state packets.
*/
if (brw->vb.nr_buffers) {
if (intel->gen >= 6) {
assert(brw->vb.nr_buffers <= 33);
} else {
assert(brw->vb.nr_buffers <= 17);
}
BEGIN_BATCH(1 + 4*brw->vb.nr_buffers);
OUT_BATCH((_3DSTATE_VERTEX_BUFFERS << 16) | (4*brw->vb.nr_buffers - 1));
for (i = 0; i < brw->vb.nr_buffers; i++) {
struct brw_vertex_buffer *buffer = &brw->vb.buffers[i];
uint32_t dw0;
if (intel->gen >= 6) {
dw0 = buffer->step_rate
? GEN6_VB0_ACCESS_INSTANCEDATA
: GEN6_VB0_ACCESS_VERTEXDATA;
dw0 |= i << GEN6_VB0_INDEX_SHIFT;
} else {
dw0 = buffer->step_rate
? BRW_VB0_ACCESS_INSTANCEDATA
: BRW_VB0_ACCESS_VERTEXDATA;
dw0 |= i << BRW_VB0_INDEX_SHIFT;
}
if (intel->gen >= 7)
dw0 |= GEN7_VB0_ADDRESS_MODIFYENABLE;
OUT_BATCH(dw0 | (buffer->stride << BRW_VB0_PITCH_SHIFT));
OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->offset);
if (intel->gen >= 5) {
OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->bo->size - 1);
} else
OUT_BATCH(0);
OUT_BATCH(buffer->step_rate);
brw->vb.current_buffers[i].handle = buffer->bo->handle;
brw->vb.current_buffers[i].offset = buffer->offset;
brw->vb.current_buffers[i].stride = buffer->stride;
brw->vb.current_buffers[i].step_rate = buffer->step_rate;
}
brw->vb.nr_current_buffers = i;
ADVANCE_BATCH();
}
nr_elements = brw->vb.nr_enabled + brw->vs.prog_data->uses_vertexid;
/* The hardware allows one more VERTEX_ELEMENTS than VERTEX_BUFFERS, presumably
* for VertexID/InstanceID.
*/
if (intel->gen >= 6) {
assert(nr_elements <= 34);
} else {
assert(nr_elements <= 18);
}
struct brw_vertex_element *gen6_edgeflag_input = NULL;
BEGIN_BATCH(1 + nr_elements * 2);
OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | (2 * nr_elements - 1));
for (i = 0; i < brw->vb.nr_enabled; i++) {
struct brw_vertex_element *input = brw->vb.enabled[i];
uint32_t format = get_surface_type(input->glarray->Type,
input->glarray->Size,
input->glarray->Format,
input->glarray->Normalized,
input->glarray->Integer);
uint32_t comp0 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp1 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp2 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp3 = BRW_VE1_COMPONENT_STORE_SRC;
/* The gen4 driver expects edgeflag to come in as a float, and passes
* that float on to the tests in the clipper. Mesa's current vertex
* attribute value for EdgeFlag is stored as a float, which works out.
* glEdgeFlagPointer, on the other hand, gives us an unnormalized
* integer ubyte. Just rewrite that to convert to a float.
*/
if (input->attrib == VERT_ATTRIB_EDGEFLAG) {
/* Gen6+ passes edgeflag as sideband along with the vertex, instead
* of in the VUE. We have to upload it sideband as the last vertex
* element according to the B-Spec.
*/
if (intel->gen >= 6) {
gen6_edgeflag_input = input;
continue;
}
if (format == BRW_SURFACEFORMAT_R8_UINT)
format = BRW_SURFACEFORMAT_R8_SSCALED;
}
switch (input->glarray->Size) {
case 0: comp0 = BRW_VE1_COMPONENT_STORE_0;
case 1: comp1 = BRW_VE1_COMPONENT_STORE_0;
case 2: comp2 = BRW_VE1_COMPONENT_STORE_0;
case 3: comp3 = input->glarray->Integer ? BRW_VE1_COMPONENT_STORE_1_INT
: BRW_VE1_COMPONENT_STORE_1_FLT;
break;
}
if (intel->gen >= 6) {
OUT_BATCH((input->buffer << GEN6_VE0_INDEX_SHIFT) |
GEN6_VE0_VALID |
(format << BRW_VE0_FORMAT_SHIFT) |
(input->offset << BRW_VE0_SRC_OFFSET_SHIFT));
} else {
OUT_BATCH((input->buffer << BRW_VE0_INDEX_SHIFT) |
BRW_VE0_VALID |
(format << BRW_VE0_FORMAT_SHIFT) |
(input->offset << BRW_VE0_SRC_OFFSET_SHIFT));
}
if (intel->gen >= 5)
OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) |
(comp1 << BRW_VE1_COMPONENT_1_SHIFT) |
(comp2 << BRW_VE1_COMPONENT_2_SHIFT) |
(comp3 << BRW_VE1_COMPONENT_3_SHIFT));
else
OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) |
(comp1 << BRW_VE1_COMPONENT_1_SHIFT) |
(comp2 << BRW_VE1_COMPONENT_2_SHIFT) |
(comp3 << BRW_VE1_COMPONENT_3_SHIFT) |
((i * 4) << BRW_VE1_DST_OFFSET_SHIFT));
}
if (intel->gen >= 6 && gen6_edgeflag_input) {
uint32_t format = get_surface_type(gen6_edgeflag_input->glarray->Type,
gen6_edgeflag_input->glarray->Size,
gen6_edgeflag_input->glarray->Format,
gen6_edgeflag_input->glarray->Normalized,
gen6_edgeflag_input->glarray->Integer);
OUT_BATCH((gen6_edgeflag_input->buffer << GEN6_VE0_INDEX_SHIFT) |
GEN6_VE0_VALID |
GEN6_VE0_EDGE_FLAG_ENABLE |
(format << BRW_VE0_FORMAT_SHIFT) |
(gen6_edgeflag_input->offset << BRW_VE0_SRC_OFFSET_SHIFT));
OUT_BATCH((BRW_VE1_COMPONENT_STORE_SRC << BRW_VE1_COMPONENT_0_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT));
}
if (brw->vs.prog_data->uses_vertexid) {
uint32_t dw0 = 0, dw1 = 0;
dw1 = ((BRW_VE1_COMPONENT_STORE_VID << BRW_VE1_COMPONENT_0_SHIFT) |
(BRW_VE1_COMPONENT_STORE_IID << BRW_VE1_COMPONENT_1_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT));
if (intel->gen >= 6) {
dw0 |= GEN6_VE0_VALID;
} else {
dw0 |= BRW_VE0_VALID;
dw1 |= (i * 4) << BRW_VE1_DST_OFFSET_SHIFT;
}
/* Note that for gl_VertexID, gl_InstanceID, and gl_PrimitiveID values,
* the format is ignored and the value is always int.
*/
OUT_BATCH(dw0);
OUT_BATCH(dw1);
}
CACHED_BATCH();
}
static void brw_emit_vertices(struct brw_context *brw)
{
struct gl_context *ctx = &brw->intel.ctx;
struct intel_context *intel = intel_context(ctx);
GLuint i, nr_elements;
brw_prepare_vertices(brw);
brw_emit_query_begin(brw);
/* If the VS doesn't read any inputs (calculating vertex position from
* a state variable for some reason, for example), emit a single pad
* VERTEX_ELEMENT struct and bail.
*
* The stale VB state stays in place, but they don't do anything unless
* a VE loads from them.
*/
if (brw->vb.nr_enabled == 0) {
BEGIN_BATCH(3);
OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | 1);
if (intel->gen >= 6) {
OUT_BATCH((0 << GEN6_VE0_INDEX_SHIFT) |
GEN6_VE0_VALID |
(BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) |
(0 << BRW_VE0_SRC_OFFSET_SHIFT));
} else {
OUT_BATCH((0 << BRW_VE0_INDEX_SHIFT) |
BRW_VE0_VALID |
(BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) |
(0 << BRW_VE0_SRC_OFFSET_SHIFT));
}
OUT_BATCH((BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_0_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) |
(BRW_VE1_COMPONENT_STORE_1_FLT << BRW_VE1_COMPONENT_3_SHIFT));
CACHED_BATCH();
return;
}
/* Now emit VB and VEP state packets.
*/
if (brw->vb.nr_buffers) {
if (intel->gen >= 6) {
assert(brw->vb.nr_buffers <= 33);
} else {
assert(brw->vb.nr_buffers <= 17);
}
BEGIN_BATCH(1 + 4*brw->vb.nr_buffers);
OUT_BATCH((_3DSTATE_VERTEX_BUFFERS << 16) | (4*brw->vb.nr_buffers - 1));
for (i = 0; i < brw->vb.nr_buffers; i++) {
struct brw_vertex_buffer *buffer = &brw->vb.buffers[i];
uint32_t dw0;
if (intel->gen >= 6) {
dw0 = buffer->step_rate
? GEN6_VB0_ACCESS_INSTANCEDATA
: GEN6_VB0_ACCESS_VERTEXDATA;
dw0 |= i << GEN6_VB0_INDEX_SHIFT;
} else {
dw0 = buffer->step_rate
? BRW_VB0_ACCESS_INSTANCEDATA
: BRW_VB0_ACCESS_VERTEXDATA;
dw0 |= i << BRW_VB0_INDEX_SHIFT;
}
if (intel->gen >= 7)
dw0 |= GEN7_VB0_ADDRESS_MODIFYENABLE;
OUT_BATCH(dw0 | (buffer->stride << BRW_VB0_PITCH_SHIFT));
OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->offset);
if (intel->gen >= 5) {
OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->bo->size - 1);
} else
OUT_BATCH(0);
OUT_BATCH(buffer->step_rate);
brw->vb.current_buffers[i].handle = buffer->bo->handle;
brw->vb.current_buffers[i].offset = buffer->offset;
brw->vb.current_buffers[i].stride = buffer->stride;
brw->vb.current_buffers[i].step_rate = buffer->step_rate;
}
brw->vb.nr_current_buffers = i;
ADVANCE_BATCH();
}
nr_elements = brw->vb.nr_enabled + brw->vs.prog_data->uses_vertexid;
/* The hardware allows one more VERTEX_ELEMENTS than VERTEX_BUFFERS, presumably
* for VertexID/InstanceID.
*/
if (intel->gen >= 6) {
assert(nr_elements <= 34);
} else {
assert(nr_elements <= 18);
}
BEGIN_BATCH(1 + nr_elements * 2);
OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | (2 * nr_elements - 1));
for (i = 0; i < brw->vb.nr_enabled; i++) {
struct brw_vertex_element *input = brw->vb.enabled[i];
uint32_t format = get_surface_type(input->glarray->Type,
input->glarray->Size,
input->glarray->Format,
input->glarray->Normalized,
input->glarray->Integer);
uint32_t comp0 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp1 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp2 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp3 = BRW_VE1_COMPONENT_STORE_SRC;
switch (input->glarray->Size) {
case 0: comp0 = BRW_VE1_COMPONENT_STORE_0;
case 1: comp1 = BRW_VE1_COMPONENT_STORE_0;
case 2: comp2 = BRW_VE1_COMPONENT_STORE_0;
case 3: comp3 = input->glarray->Integer ? BRW_VE1_COMPONENT_STORE_1_INT
: BRW_VE1_COMPONENT_STORE_1_FLT;
break;
}
if (intel->gen >= 6) {
OUT_BATCH((input->buffer << GEN6_VE0_INDEX_SHIFT) |
GEN6_VE0_VALID |
(format << BRW_VE0_FORMAT_SHIFT) |
(input->offset << BRW_VE0_SRC_OFFSET_SHIFT));
} else {
OUT_BATCH((input->buffer << BRW_VE0_INDEX_SHIFT) |
BRW_VE0_VALID |
(format << BRW_VE0_FORMAT_SHIFT) |
(input->offset << BRW_VE0_SRC_OFFSET_SHIFT));
}
if (intel->gen >= 5)
OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) |
(comp1 << BRW_VE1_COMPONENT_1_SHIFT) |
(comp2 << BRW_VE1_COMPONENT_2_SHIFT) |
(comp3 << BRW_VE1_COMPONENT_3_SHIFT));
else
OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) |
(comp1 << BRW_VE1_COMPONENT_1_SHIFT) |
(comp2 << BRW_VE1_COMPONENT_2_SHIFT) |
(comp3 << BRW_VE1_COMPONENT_3_SHIFT) |
((i * 4) << BRW_VE1_DST_OFFSET_SHIFT));
}
if (brw->vs.prog_data->uses_vertexid) {
uint32_t dw0 = 0, dw1 = 0;
dw1 = ((BRW_VE1_COMPONENT_STORE_VID << BRW_VE1_COMPONENT_0_SHIFT) |
(BRW_VE1_COMPONENT_STORE_IID << BRW_VE1_COMPONENT_1_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_3_SHIFT));
if (intel->gen >= 6) {
dw0 |= GEN6_VE0_VALID;
} else {
dw0 |= BRW_VE0_VALID;
dw1 |= (i * 4) << BRW_VE1_DST_OFFSET_SHIFT;
}
/* Note that for gl_VertexID, gl_InstanceID, and gl_PrimitiveID values,
* the format is ignored and the value is always int.
*/
OUT_BATCH(dw0);
OUT_BATCH(dw1);
}
CACHED_BATCH();
}
void
Racing::loop(float timeStep)
{
int width, height;
bool joy_left_turn = false;
bool joy_right_turn = false;
double joy_turn_fact = 0.0;
bool joy_paddling = false;
bool joy_braking = false;
bool joy_tricks = false;
bool joy_charging = false;
bool airborne;
pp::Vec3d dir;
float speed;
float terrain_weights[NUM_TERRAIN_TYPES];
int new_terrain = 0;
int slide_volume;
unsigned int i;
if (Benchmark::getMode() == Benchmark::AUTO){
m_paddling = true;
}
dir = players[0].vel;
speed = dir.normalize();
//set max_speed
if (speed > players[0].max_speed) players[0].max_speed=int(speed);
airborne = (bool) ( players[0].pos.y > ( find_y_coord(players[0].pos.x,
players[0].pos.z) +
JUMP_MAX_START_HEIGHT ) );
width = getparam_x_resolution();
height = getparam_y_resolution();
fpsCounter.update();
update_audio();
clear_rendering_context();
fogPlane.setup();
// Joystick
if ( is_joystick_active() ) {
float joy_x;
float joy_y;
update_joystick();
joy_x = get_joystick_x_axis();
joy_y = get_joystick_y_axis();
if ( joy_x > 0.1 ) {
joy_right_turn = true;
joy_turn_fact = joy_x;
} else if ( joy_x < -0.1 ) {
joy_left_turn = true;
joy_turn_fact = joy_x;
}
if ( getparam_joystick_brake_button() >= 0 ) {
joy_braking =
is_joystick_button_down( getparam_joystick_brake_button() );
}
if ( !joy_braking ) {
joy_braking = (bool) ( joy_y > 0.5 );
}
if ( getparam_joystick_paddle_button() >= 0 ) {
joy_paddling =
is_joystick_button_down( getparam_joystick_paddle_button() );
}
if ( !joy_paddling ) {
joy_paddling = (bool) ( joy_y < -0.5 );
}
if ( getparam_joystick_jump_button() >= 0 ) {
joy_charging =
is_joystick_button_down( getparam_joystick_jump_button() );
}
if ( getparam_joystick_trick_button() >= 0 ) {
joy_tricks =
is_joystick_button_down( getparam_joystick_trick_button() );
}
}
// Update braking
players[0].control.is_braking = (bool) ( m_braking || joy_braking );
if ( airborne ) {
new_terrain = (1<<4);
// Tricks
if ( m_trickModifier || joy_tricks ) {
if ( m_leftTurn || joy_left_turn ) {
players[0].control.barrel_roll_left = true;
}
if ( m_rightTurn || joy_right_turn ) {
players[0].control.barrel_roll_right = true;
}
if ( m_paddling || joy_paddling ) {
players[0].control.front_flip = true;
}
if ( players[0].control.is_braking ) {
players[0].control.back_flip = true;
}
}
for(i=0;i<num_terrains;i++){
if ( !terrain_texture[i].sound.empty() && terrain_texture[i].soundactive==true) {
halt_sound( terrain_texture[i].sound.c_str() );
terrain_texture[i].soundactive=false;
}
}
} else {
get_surface_type(players[0].pos.x, players[0].pos.z, terrain_weights);
//Play sliding sound
slide_volume = int(MIN( (((pow(players[0].control.turn_fact, 2)*128)) +
(players[0].control.is_braking?128:0) +
(players[0].control.jumping?128:0) +
20) *
(speed/10), 128 ));
for(i=0;i<num_terrains;i++){
if ( !terrain_texture[i].sound.empty() ) {
if (terrain_weights[i] > 0 ){
set_sound_volume(terrain_texture[i].sound.c_str(), int(slide_volume * terrain_weights[i]));
if (terrain_texture[i].soundactive==false){
play_sound(terrain_texture[i].sound.c_str() , -1 );
terrain_texture[i].soundactive=true;
}
} else if (terrain_texture[i].soundactive==true){
halt_sound( terrain_texture[i].sound.c_str() );
terrain_texture[i].soundactive=false;
}
}
}
}
// Jumping
calcJumpAmt( timeStep );
if ( ( m_charging || joy_charging ) &&
!players[0].control.jump_charging && !players[0].control.jumping )
{
players[0].control.jump_charging = true;
m_chargeStartTime = gameMgr->time;
}
if ( ( !m_charging && !joy_charging ) && players[0].control.jump_charging ) {
players[0].control.jump_charging = false;
players[0].control.begin_jump = true;
}
// Turning
if ( ( m_leftTurn || joy_left_turn ) ^ (m_rightTurn || joy_right_turn ) ) {
bool turning_left = (bool) ( m_leftTurn || joy_left_turn );
if ( joy_left_turn || joy_right_turn ) {
players[0].control.turn_fact = joy_turn_fact;
} else {
players[0].control.turn_fact = (turning_left?-1:1);
}
players[0].control.turn_animation += (turning_left?-1:1) *
0.15 * timeStep / 0.05;
players[0].control.turn_animation =
MIN(1.0, MAX(-1.0, players[0].control.turn_animation));
} else {
players[0].control.turn_fact = 0;
// Decay turn animation
if ( timeStep < ROLL_DECAY_TIME_CONSTANT ) {
players[0].control.turn_animation *=
1.0 - timeStep/ROLL_DECAY_TIME_CONSTANT;
} else {
players[0].control.turn_animation = 0.0;
}
}
//Paddling
if ( ( m_paddling || joy_paddling ) && players[0].control.is_paddling == false ) {
players[0].control.is_paddling = true;
players[0].control.paddle_time = gameMgr->time;
}
//Play flying sound
if (new_terrain & (1<<4)) {
set_sound_volume("flying_sound", int(MIN(128, speed*2)));
if (!(m_lastTerrain & (1<<4))) {
play_sound( "flying_sound", -1 );
}
} else {
if (m_lastTerrain & (1<<4)) {
halt_sound( "flying_sound" );
}
}
m_lastTerrain = new_terrain;
//Tricks
if ( players[0].control.barrel_roll_left || players[0].control.barrel_roll_right ) {
players[0].control.barrel_roll_factor +=
( players[0].control.barrel_roll_left ? -1 : 1 ) * 0.15 * timeStep / 0.05;
if ( (players[0].control.barrel_roll_factor > 1) ||
(players[0].control.barrel_roll_factor < -1) ) {
players[0].control.barrel_roll_factor = 0;
players[0].control.barrel_roll_left = players[0].control.barrel_roll_right = false;
}
}
if ( players[0].control.front_flip || players[0].control.back_flip ) {
players[0].control.flip_factor +=
( players[0].control.back_flip ? -1 : 1 ) * 0.15 * timeStep / 0.05;
if ( (players[0].control.flip_factor > 1) ||
(players[0].control.flip_factor < -1) ) {
players[0].control.flip_factor = 0;
players[0].control.front_flip = players[0].control.back_flip = false;
}
}
update_player_pos( players[0], timeStep );
//Track Marks
add_track_mark( players[0] );
update_view( players[0], timeStep );
setup_view_frustum( players[0], NEAR_CLIP_DIST,
getparam_forward_clip_distance() );
draw_sky(players[0].view.pos);
draw_fog_plane();
set_course_clipping( true );
set_course_eye_point( players[0].view.pos );
setup_course_lighting();
render_course();
//Draw snow
update_snow( timeStep, false, players[0].view.pos );
draw_snow(players[0].view.pos);
draw_trees();
if ( getparam_draw_particles() ) {
update_particles( timeStep );
draw_particles( players[0] );
}
ModelHndl->draw_tux();
draw_tux_shadow();
HUD1.draw(players[0]);
reshape( width, height );
winsys_swap_buffers();
gameMgr->time += timeStep;
if (airborne) gameMgr->airbornetime += timeStep;
if(Benchmark::getMode() == Benchmark::PAUSED){
set_game_mode(PAUSED);
}
}
static void brw_emit_vertices(struct brw_context *brw)
{
struct gl_context *ctx = &brw->intel.ctx;
struct intel_context *intel = intel_context(ctx);
GLuint i;
brw_emit_query_begin(brw);
/* If the VS doesn't read any inputs (calculating vertex position from
* a state variable for some reason, for example), emit a single pad
* VERTEX_ELEMENT struct and bail.
*
* The stale VB state stays in place, but they don't do anything unless
* a VE loads from them.
*/
if (brw->vb.nr_enabled == 0) {
BEGIN_BATCH(3);
OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | 1);
if (intel->gen >= 6) {
OUT_BATCH((0 << GEN6_VE0_INDEX_SHIFT) |
GEN6_VE0_VALID |
(BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) |
(0 << BRW_VE0_SRC_OFFSET_SHIFT));
} else {
OUT_BATCH((0 << BRW_VE0_INDEX_SHIFT) |
BRW_VE0_VALID |
(BRW_SURFACEFORMAT_R32G32B32A32_FLOAT << BRW_VE0_FORMAT_SHIFT) |
(0 << BRW_VE0_SRC_OFFSET_SHIFT));
}
OUT_BATCH((BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_0_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_1_SHIFT) |
(BRW_VE1_COMPONENT_STORE_0 << BRW_VE1_COMPONENT_2_SHIFT) |
(BRW_VE1_COMPONENT_STORE_1_FLT << BRW_VE1_COMPONENT_3_SHIFT));
CACHED_BATCH();
return;
}
/* Now emit VB and VEP state packets.
*/
if (brw->vb.nr_buffers) {
BEGIN_BATCH(1 + 4*brw->vb.nr_buffers);
OUT_BATCH((_3DSTATE_VERTEX_BUFFERS << 16) | (4*brw->vb.nr_buffers - 1));
for (i = 0; i < brw->vb.nr_buffers; i++) {
struct brw_vertex_buffer *buffer = &brw->vb.buffers[i];
uint32_t dw0;
if (intel->gen >= 6) {
dw0 = GEN6_VB0_ACCESS_VERTEXDATA | (i << GEN6_VB0_INDEX_SHIFT);
} else {
dw0 = BRW_VB0_ACCESS_VERTEXDATA | (i << BRW_VB0_INDEX_SHIFT);
}
if (intel->gen >= 7)
dw0 |= GEN7_VB0_ADDRESS_MODIFYENABLE;
OUT_BATCH(dw0 | (buffer->stride << BRW_VB0_PITCH_SHIFT));
OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->offset);
if (intel->gen >= 5) {
OUT_RELOC(buffer->bo, I915_GEM_DOMAIN_VERTEX, 0, buffer->bo->size - 1);
} else
OUT_BATCH(0);
OUT_BATCH(0); /* Instance data step rate */
brw->vb.current_buffers[i].handle = buffer->bo->handle;
brw->vb.current_buffers[i].offset = buffer->offset;
brw->vb.current_buffers[i].stride = buffer->stride;
}
brw->vb.nr_current_buffers = i;
ADVANCE_BATCH();
}
BEGIN_BATCH(1 + brw->vb.nr_enabled * 2);
OUT_BATCH((_3DSTATE_VERTEX_ELEMENTS << 16) | (2*brw->vb.nr_enabled - 1));
for (i = 0; i < brw->vb.nr_enabled; i++) {
struct brw_vertex_element *input = brw->vb.enabled[i];
uint32_t format = get_surface_type(input->glarray->Type,
input->glarray->Size,
input->glarray->Format,
input->glarray->Normalized);
uint32_t comp0 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp1 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp2 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp3 = BRW_VE1_COMPONENT_STORE_SRC;
switch (input->glarray->Size) {
case 0: comp0 = BRW_VE1_COMPONENT_STORE_0;
case 1: comp1 = BRW_VE1_COMPONENT_STORE_0;
case 2: comp2 = BRW_VE1_COMPONENT_STORE_0;
case 3: comp3 = BRW_VE1_COMPONENT_STORE_1_FLT;
break;
}
if (intel->gen >= 6) {
OUT_BATCH((input->buffer << GEN6_VE0_INDEX_SHIFT) |
GEN6_VE0_VALID |
(format << BRW_VE0_FORMAT_SHIFT) |
(input->offset << BRW_VE0_SRC_OFFSET_SHIFT));
} else {
OUT_BATCH((input->buffer << BRW_VE0_INDEX_SHIFT) |
BRW_VE0_VALID |
(format << BRW_VE0_FORMAT_SHIFT) |
(input->offset << BRW_VE0_SRC_OFFSET_SHIFT));
}
if (intel->gen >= 5)
OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) |
(comp1 << BRW_VE1_COMPONENT_1_SHIFT) |
(comp2 << BRW_VE1_COMPONENT_2_SHIFT) |
(comp3 << BRW_VE1_COMPONENT_3_SHIFT));
else
OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) |
(comp1 << BRW_VE1_COMPONENT_1_SHIFT) |
(comp2 << BRW_VE1_COMPONENT_2_SHIFT) |
(comp3 << BRW_VE1_COMPONENT_3_SHIFT) |
((i * 4) << BRW_VE1_DST_OFFSET_SHIFT));
}
CACHED_BATCH();
}
GLboolean brw_upload_vertices( struct brw_context *brw,
GLuint min_index,
GLuint max_index )
{
GLcontext *ctx = &brw->intel.ctx;
struct intel_context *intel = intel_context(ctx);
GLuint tmp = brw->vs.prog_data->inputs_read;
struct brw_vertex_element_packet vep;
struct brw_array_state vbp;
GLuint i;
const void *ptr = NULL;
GLuint interleave = 0;
struct brw_vertex_element *enabled[VERT_ATTRIB_MAX];
GLuint nr_enabled = 0;
struct brw_vertex_element *upload[VERT_ATTRIB_MAX];
GLuint nr_uploads = 0;
memset(&vbp, 0, sizeof(vbp));
memset(&vep, 0, sizeof(vep));
/* First build an array of pointers to ve's in vb.inputs_read
*/
if (0)
_mesa_printf("%s %d..%d\n", __FUNCTION__, min_index, max_index);
while (tmp) {
GLuint i = _mesa_ffsll(tmp)-1;
struct brw_vertex_element *input = &brw->vb.inputs[i];
tmp &= ~(1<<i);
enabled[nr_enabled++] = input;
input->index = i;
input->element_size = get_size(input->glarray->Type) * input->glarray->Size;
input->count = input->glarray->StrideB ? max_index + 1 - min_index : 1;
if (!input->glarray->BufferObj->Name) {
if (i == 0) {
/* Position array not properly enabled:
*/
if (input->glarray->StrideB == 0)
return GL_FALSE;
interleave = input->glarray->StrideB;
ptr = input->glarray->Ptr;
}
else if (interleave != input->glarray->StrideB ||
(const char *)input->glarray->Ptr - (const char *)ptr < 0 ||
(const char *)input->glarray->Ptr - (const char *)ptr > interleave) {
interleave = 0;
}
upload[nr_uploads++] = input;
/* We rebase drawing to start at element zero only when
* varyings are not in vbos, which means we can end up
* uploading non-varying arrays (stride != 0) when min_index
* is zero. This doesn't matter as the amount to upload is
* the same for these arrays whether the draw call is rebased
* or not - we just have to upload the one element.
*/
assert(min_index == 0 || input->glarray->StrideB == 0);
}
}
/* Upload interleaved arrays if all uploads are interleaved
*/
if (nr_uploads > 1 &&
interleave &&
interleave <= 256) {
struct brw_vertex_element *input0 = upload[0];
input0->glarray = copy_array_to_vbo_array(brw, 0,
input0->glarray,
interleave,
input0->count);
for (i = 1; i < nr_uploads; i++) {
upload[i]->glarray = interleaved_vbo_array(brw,
i,
input0->glarray,
upload[i]->glarray,
ptr);
}
}
else {
for (i = 0; i < nr_uploads; i++) {
struct brw_vertex_element *input = upload[i];
input->glarray = copy_array_to_vbo_array(brw, i,
input->glarray,
input->element_size,
input->count);
}
}
/* XXX: In the rare cases where this happens we fallback all
* the way to software rasterization, although a tnl fallback
* would be sufficient. I don't know of *any* real world
* cases with > 17 vertex attributes enabled, so it probably
* isn't an issue at this point.
*/
if (nr_enabled >= BRW_VEP_MAX)
return GL_FALSE;
/* This still defines a hardware VB for each input, even if they
* are interleaved or from the same VBO. TBD if this makes a
* performance difference.
*/
for (i = 0; i < nr_enabled; i++) {
struct brw_vertex_element *input = enabled[i];
input->vep = &vep.ve[i];
input->vep->ve0.src_format = get_surface_type(input->glarray->Type,
input->glarray->Size,
input->glarray->Normalized);
input->vep->ve0.valid = 1;
input->vep->ve1.dst_offset = (i) * 4;
input->vep->ve1.vfcomponent3 = BRW_VFCOMPONENT_STORE_SRC;
input->vep->ve1.vfcomponent2 = BRW_VFCOMPONENT_STORE_SRC;
input->vep->ve1.vfcomponent1 = BRW_VFCOMPONENT_STORE_SRC;
input->vep->ve1.vfcomponent0 = BRW_VFCOMPONENT_STORE_SRC;
switch (input->glarray->Size) {
case 0: input->vep->ve1.vfcomponent0 = BRW_VFCOMPONENT_STORE_0;
case 1: input->vep->ve1.vfcomponent1 = BRW_VFCOMPONENT_STORE_0;
case 2: input->vep->ve1.vfcomponent2 = BRW_VFCOMPONENT_STORE_0;
case 3: input->vep->ve1.vfcomponent3 = BRW_VFCOMPONENT_STORE_1_FLT;
break;
}
input->vep->ve0.vertex_buffer_index = i;
input->vep->ve0.src_offset = 0;
vbp.vb[i].vb0.bits.pitch = input->glarray->StrideB;
vbp.vb[i].vb0.bits.pad = 0;
vbp.vb[i].vb0.bits.access_type = BRW_VERTEXBUFFER_ACCESS_VERTEXDATA;
vbp.vb[i].vb0.bits.vb_index = i;
vbp.vb[i].offset = (GLuint)input->glarray->Ptr;
vbp.vb[i].buffer = array_buffer(input->glarray);
vbp.vb[i].max_index = max_index;
}
/* Now emit VB and VEP state packets:
*/
vbp.header.bits.length = (1 + nr_enabled * 4) - 2;
vbp.header.bits.opcode = CMD_VERTEX_BUFFER;
BEGIN_BATCH(vbp.header.bits.length+2, 0);
OUT_BATCH( vbp.header.dword );
for (i = 0; i < nr_enabled; i++) {
OUT_BATCH( vbp.vb[i].vb0.dword );
OUT_BATCH( bmBufferOffset(&brw->intel, vbp.vb[i].buffer) + vbp.vb[i].offset);
OUT_BATCH( vbp.vb[i].max_index );
OUT_BATCH( vbp.vb[i].instance_data_step_rate );
}
ADVANCE_BATCH();
vep.header.length = (1 + nr_enabled * sizeof(vep.ve[0])/4) - 2;
vep.header.opcode = CMD_VERTEX_ELEMENT;
brw_cached_batch_struct(brw, &vep, 4 + nr_enabled * sizeof(vep.ve[0]));
return GL_TRUE;
}
void racing_loop( scalar_t time_step )
{
int width, height;
player_data_t *plyr = get_player_data( local_player() );
bool_t joy_left_turn = False;
bool_t joy_right_turn = False;
scalar_t joy_turn_fact = 0.0;
bool_t joy_paddling = False;
bool_t joy_braking = False;
bool_t joy_tricks = False;
bool_t joy_charging = False;
bool_t airborne;
vector_t dir;
scalar_t speed;
scalar_t terrain_weights[NumTerrains];
int new_terrain = 0;
int slide_volume;
dir = plyr->vel;
speed = normalize_vector(&dir);
airborne = (bool_t) ( plyr->pos.y > ( find_y_coord(plyr->pos.x,
plyr->pos.z) +
JUMP_MAX_START_HEIGHT ) );
width = getparam_x_resolution();
height = getparam_y_resolution();
check_gl_error();
new_frame_for_fps_calc();
update_audio();
clear_rendering_context();
setup_fog();
/*
* Joystick
*/
if ( is_joystick_active() ) {
scalar_t joy_x;
scalar_t joy_y;
update_joystick();
joy_x = get_joystick_x_axis();
joy_y = get_joystick_y_axis();
if ( joy_x > 0.1 ) {
joy_right_turn = True;
joy_turn_fact = joy_x;
} else if ( joy_x < -0.1 ) {
joy_left_turn = True;
joy_turn_fact = joy_x;
}
if ( getparam_joystick_brake_button() >= 0 ) {
joy_braking =
is_joystick_button_down( getparam_joystick_brake_button() );
}
if ( !joy_braking ) {
joy_braking = (bool_t) ( joy_y > 0.5 );
}
if ( getparam_joystick_paddle_button() >= 0 ) {
joy_paddling =
is_joystick_button_down( getparam_joystick_paddle_button() );
}
if ( !joy_paddling ) {
joy_paddling = (bool_t) ( joy_y < -0.5 );
}
if ( getparam_joystick_jump_button() >= 0 ) {
joy_charging =
is_joystick_button_down( getparam_joystick_jump_button() );
}
if ( getparam_joystick_trick_button() >= 0 ) {
joy_tricks =
is_joystick_button_down( getparam_joystick_trick_button() );
}
}
/* Update braking */
plyr->control.is_braking = (bool_t) ( braking || joy_braking );
if ( airborne ) {
new_terrain = (1<<NumTerrains);
/*
* Tricks
*/
if ( trick_modifier || joy_tricks ) {
if ( left_turn || joy_left_turn ) {
plyr->control.barrel_roll_left = True;
}
if ( right_turn || joy_right_turn ) {
plyr->control.barrel_roll_right = True;
}
if ( paddling || joy_paddling ) {
plyr->control.front_flip = True;
}
if ( plyr->control.is_braking ) {
plyr->control.back_flip = True;
}
}
} else {
get_surface_type(plyr->pos.x, plyr->pos.z, terrain_weights);
if (terrain_weights[Snow] > 0) {
new_terrain |= (1<<Snow);
}
if (terrain_weights[Rock] > 0) {
new_terrain |= (1<<Rock);
}
if (terrain_weights[Ice] > 0) {
new_terrain |= (1<<Ice);
}
}
/*
* Jumping
*/
calc_jump_amt( time_step );
if ( ( charging || joy_charging ) &&
!plyr->control.jump_charging && !plyr->control.jumping )
{
plyr->control.jump_charging = True;
charge_start_time = g_game.time;
}
if ( ( !charging && !joy_charging ) && plyr->control.jump_charging ) {
plyr->control.jump_charging = False;
plyr->control.begin_jump = True;
}
/*
* Turning
*/
if ( ( left_turn || joy_left_turn ) ^ (right_turn || joy_right_turn ) ) {
bool_t turning_left = (bool_t) ( left_turn || joy_left_turn );
if ( joy_left_turn || joy_right_turn ) {
plyr->control.turn_fact = joy_turn_fact;
} else {
plyr->control.turn_fact = (turning_left?-1:1);
}
plyr->control.turn_animation += (turning_left?-1:1) *
0.15 * time_step / 0.05;
plyr->control.turn_animation =
min(1.0, max(-1.0, plyr->control.turn_animation));
} else {
plyr->control.turn_fact = 0;
/* Decay turn animation */
if ( time_step < ROLL_DECAY_TIME_CONSTANT ) {
plyr->control.turn_animation *=
1.0 - time_step/ROLL_DECAY_TIME_CONSTANT;
} else {
plyr->control.turn_animation = 0.0;
}
}
/*
* Paddling
*/
if ( ( paddling || joy_paddling ) && plyr->control.is_paddling == False ) {
plyr->control.is_paddling = True;
plyr->control.paddle_time = g_game.time;
}
/*
* Play flying sound
*/
if (new_terrain & (1<<NumTerrains)) {
set_sound_volume("flying_sound", min(128, speed*2));
if (!(last_terrain & (1<<NumTerrains))) {
play_sound( "flying_sound", -1 );
}
} else {
if (last_terrain & (1<<NumTerrains)) {
halt_sound( "flying_sound" );
}
}
/*
* Play sliding sound
*/
slide_volume = min( (((pow(plyr->control.turn_fact, 2)*128)) +
(plyr->control.is_braking?128:0) +
(plyr->control.jumping?128:0) +
20) *
(speed/10), 128 );
if (new_terrain & (1<<Snow)) {
set_sound_volume("snow_sound", slide_volume * terrain_weights[Snow]);
if (!(last_terrain & (1<<Snow))) {
play_sound( "snow_sound", -1 );
}
} else {
if (last_terrain & (1<<Snow)) {
halt_sound( "snow_sound" );
}
}
if (new_terrain & (1<<Rock)) {
set_sound_volume("rock_sound", 128*pow((speed/2), 2) *
terrain_weights[Rock]);
if (!(last_terrain & (1<<Rock))) {
play_sound( "rock_sound", -1 );
}
} else {
if (last_terrain & (1<<Rock)) {
halt_sound( "rock_sound" );
}
}
if (new_terrain & (1<<Ice)) {
set_sound_volume("ice_sound", slide_volume * terrain_weights[Ice]);
if (!(last_terrain & (1<<Ice))) {
play_sound( "ice_sound", -1 );
}
} else {
if (last_terrain & (1<<Ice)) {
halt_sound( "ice_sound" );
}
}
last_terrain = new_terrain;
/*
* Tricks
*/
if ( plyr->control.barrel_roll_left || plyr->control.barrel_roll_right ) {
plyr->control.barrel_roll_factor +=
( plyr->control.barrel_roll_left ? -1 : 1 ) * 0.15 * time_step / 0.05;
if ( (plyr->control.barrel_roll_factor > 1) ||
(plyr->control.barrel_roll_factor < -1) ) {
plyr->control.barrel_roll_factor = 0;
plyr->control.barrel_roll_left = plyr->control.barrel_roll_right = False;
}
}
if ( plyr->control.front_flip || plyr->control.back_flip ) {
plyr->control.flip_factor +=
( plyr->control.back_flip ? -1 : 1 ) * 0.15 * time_step / 0.05;
if ( (plyr->control.flip_factor > 1) ||
(plyr->control.flip_factor < -1) ) {
plyr->control.flip_factor = 0;
plyr->control.front_flip = plyr->control.back_flip = False;
}
}
update_player_pos( plyr, time_step );
/*
* Track Marks
*/
add_track_mark( plyr );
update_view( plyr, time_step );
setup_view_frustum( plyr, NEAR_CLIP_DIST,
getparam_forward_clip_distance() );
draw_sky(plyr->view.pos);
draw_fog_plane();
set_course_clipping( True );
set_course_eye_point( plyr->view.pos );
setup_course_lighting();
render_course();
draw_trees();
if ( getparam_draw_particles() ) {
update_particles( time_step );
draw_particles( plyr );
}
draw_tux();
draw_tux_shadow();
draw_hud( plyr );
reshape( width, height );
winsys_swap_buffers();
g_game.time += time_step;
}
static void
generate_particles(const Player& plyr, float dtime,
const ppogl::Vec3d& pos, float speed)
{
float surf_weights[NUM_TERRAIN_TYPES];
get_surface_type( pos, surf_weights );
float surf_y = find_y_coord( pos );
bool particles_type=false;
GLuint particle_binding = 0;
for(unsigned int i=0;i<Course::numTerrains;i++){
if(Course::terrainTexture[i].particles){
if(surf_weights[i] > 0.5){
particles_type=true;
particle_binding = Course::terrainTexture[i].particles->getID();
}
}
}
if( particles_type==true && pos.y() < surf_y){
ppogl::Vec3d xvec =plyr.direction^plyr.plane_nml;
ppogl::Vec3d right_part_pt = pos;
ppogl::Vec3d left_part_pt = pos;
right_part_pt = right_part_pt + ((TUX_WIDTH/2.0)*xvec );
left_part_pt = left_part_pt + ((-TUX_WIDTH/2.0)* xvec);
right_part_pt.y() = left_part_pt.y() = surf_y;
float brake_particles = dtime *
BRAKE_PARTICLES * ( plyr.control.is_braking ? 1.0 : 0.0 )
* MIN( speed / PARTICLE_SPEED_FACTOR, 1.0 );
float turn_particles = dtime * MAX_TURN_PARTICLES
* MIN( speed / PARTICLE_SPEED_FACTOR, 1.0 );
float roll_particles = dtime * MAX_ROLL_PARTICLES
* MIN( speed / PARTICLE_SPEED_FACTOR, 1.0 );
float left_particles = turn_particles *
fabs( MIN(plyr.control.turn_fact, 0.) ) +
brake_particles +
roll_particles * fabs( MIN(plyr.control.turn_animation, 0.) );
float right_particles = turn_particles *
fabs( MAX(plyr.control.turn_fact, 0.) ) +
brake_particles +
roll_particles * fabs( MAX(plyr.control.turn_animation, 0.) );
left_particles = adjust_particle_count( left_particles );
right_particles = adjust_particle_count( right_particles );
pp::Matrix rot_mat;
// Create particle velocitites
rot_mat.makeRotationAboutVector( plyr.direction,
MAX( -MAX_PARTICLE_ANGLE,
-MAX_PARTICLE_ANGLE * speed / MAX_PARTICLE_ANGLE_SPEED ) );
ppogl::Vec3d left_part_vel = rot_mat.transformVector(plyr.plane_nml);
left_part_vel = MIN( MAX_PARTICLE_SPEED,
speed * PARTICLE_SPEED_MULTIPLIER )*
left_part_vel;
rot_mat.makeRotationAboutVector( plyr.direction,
MIN( MAX_PARTICLE_ANGLE,
MAX_PARTICLE_ANGLE * speed / MAX_PARTICLE_ANGLE_SPEED ) );
ppogl::Vec3d right_part_vel = rot_mat.transformVector( plyr.plane_nml );
right_part_vel = MIN( MAX_PARTICLE_SPEED,
speed * PARTICLE_SPEED_MULTIPLIER )*
right_part_vel;
partsys[plyr.num].createParticles( left_part_pt, left_part_vel,
int(left_particles), particle_binding );
partsys[plyr.num].createParticles( right_part_pt, right_part_vel,
int(right_particles), particle_binding );
}
}
static ppogl::Vec3d
calc_net_force(Player& plyr, const ppogl::Vec3d& pos,
const ppogl::Vec3d& vel)
{
ppogl::Vec3d nml_f; /* normal force */
ppogl::Vec3d unclamped_nml_f; /* unclamped normal force (for damage calc) */
ppogl::Vec3d fric_f; /* frictional force */
float fric_f_mag; /* frictional force magnitude */
ppogl::Vec3d fric_dir; /* direction of frictional force */
ppogl::Vec3d grav_f; /* gravitational force */
ppogl::Vec3d air_f; /* air resistance force */
ppogl::Vec3d brake_f; /* braking force */
ppogl::Vec3d paddling_f; /* paddling force */
ppogl::Vec3d net_force; /* the net force (sum of all other forces) */
float comp_depth; /* depth to which the terrain can be compressed */
float speed; /* speed (m/s) */
ppogl::Vec3d orig_surf_nml; /* normal to terrain at current position */
ppogl::Vec3d surf_nml; /* normal to terrain w/ roll effect */
float glute_compression; /* amt that Tux's tush has been compressed */
float steer_angle; /* Angle to rotate fricitonal force for turning */
pp::Matrix fric_rot_mat; /* Matrix to rotate frictional force */
ppogl::Vec3d jump_f;
pp::Plane surf_plane;
float dist_from_surface;
float surf_weights[NUM_TERRAIN_TYPES];
float surf_fric_coeff;
unsigned int i;
get_surface_type( pos, surf_weights );
surf_plane = get_local_course_plane(pos);
orig_surf_nml = surf_plane.nml;
surf_fric_coeff = 0;
for (i=0; i<Course::numTerrains; i++) {
surf_fric_coeff += surf_weights[i] * Course::terrainTexture[i].friction;
}
surf_nml = adjust_surf_nml_for_roll( plyr, vel, surf_fric_coeff,
orig_surf_nml );
comp_depth = 0;
for (i=0; i<Course::numTerrains; i++) {
comp_depth += surf_weights[i] * Course::terrainTexture[i].compression;
}
grav_f = ppogl::Vec3d( 0, -EARTH_GRAV * TUX_MASS, 0 );
dist_from_surface = surf_plane.distance( pos );
if ( dist_from_surface <= 0 ) {
plyr.airborne = false;
} else {
plyr.airborne = true;
}
/*
* Calculate normal force
*/
nml_f = ppogl::Vec3d( 0., 0., 0. );
if ( dist_from_surface <= -comp_depth ) {
/*
* Tux ended up below the surface.
* Calculate the spring force exterted by his rear end. :-)
*/
glute_compression = -dist_from_surface - comp_depth;
PP_ASSERT( glute_compression >= 0,
"unexpected negative compression" );
nml_f = calc_spring_force( glute_compression, vel, surf_nml,
&unclamped_nml_f );
}
/* Check if player is trying to jump */
if ( plyr.control.begin_jump == true ) {
plyr.control.begin_jump = false;
if ( dist_from_surface <= 0 ) {
plyr.control.jumping = true;
plyr.control.jump_start_time = GameMgr::getInstance().time;
} else {
plyr.control.jumping = false;
}
}
/* Apply jump force in up direction for JUMP_FORCE_DURATION */
if ( ( plyr.control.jumping ) &&
( GameMgr::getInstance().time - plyr.control.jump_start_time <
JUMP_FORCE_DURATION ) )
{
jump_f = ppogl::Vec3d(
0,
BASE_JUMP_G_FORCE * TUX_MASS * EARTH_GRAV +
plyr.control.jump_amt *
(MAX_JUMP_G_FORCE-BASE_JUMP_G_FORCE) * TUX_MASS * EARTH_GRAV,
0 );
} else {
jump_f = ppogl::Vec3d( 0, 0, 0 );
plyr.control.jumping = false;
}
/* Use the unclamped normal force for damage calculation purposes */
plyr.normal_force = unclamped_nml_f;
/*
* Calculate frictional force
*/
fric_dir = vel;
speed = fric_dir.normalize();
fric_dir = -1.0*fric_dir;
if ( dist_from_surface < 0 && speed > MIN_FRICTION_SPEED ) {
ppogl::Vec3d tmp_nml_f = nml_f;
fric_f_mag = tmp_nml_f.normalize() * surf_fric_coeff;
fric_f_mag = MIN( MAX_FRICTIONAL_FORCE, fric_f_mag );
fric_f = fric_f_mag*fric_dir;
/*
* Adjust friction for steering
*/
steer_angle = plyr.control.turn_fact * MAX_TURN_ANGLE;
if ( fabs( fric_f_mag * sin( ANGLES_TO_RADIANS( steer_angle ) ) ) >
MAX_TURN_PERPENDICULAR_FORCE )
{
//check_assertion( fabs( plyr->control.turn_fact ) > 0,
// "steer angle is non-zero when player is not "
// "turning" );
steer_angle = RADIANS_TO_ANGLES(
asin( MAX_TURN_PERPENDICULAR_FORCE / fric_f_mag ) ) *
plyr.control.turn_fact / fabs( plyr.control.turn_fact );
}
fric_rot_mat.makeRotationAboutVector( orig_surf_nml, steer_angle );
fric_f = fric_rot_mat.transformVector( fric_f );
fric_f = (1.0 + MAX_TURN_PENALTY)*fric_f;
/*
* Calculate braking force
*/
if ( speed > MIN_TUX_SPEED && plyr.control.is_braking ) {
brake_f = (surf_fric_coeff * BRAKE_FORCE)*fric_dir;
} else {
brake_f = ppogl::Vec3d( 0., 0., 0. );
}
} else {
fric_f = brake_f = ppogl::Vec3d( 0., 0., 0. );
}
/*
* Calculate air resistance
*/
air_f = calc_wind_force( vel );
/*
* Calculate force from paddling
*/
update_paddling( plyr );
if ( plyr.control.is_paddling ) {
if ( plyr.airborne ) {
paddling_f = ppogl::Vec3d( 0, 0, -TUX_MASS * EARTH_GRAV / 4.0 );
paddling_f = plyr.orientation.rotate( paddling_f );
} else {
paddling_f = (
-1 * MIN( MAX_PADDLING_FORCE,
MAX_PADDLING_FORCE *
( MAX_PADDLING_SPEED - speed ) / MAX_PADDLING_SPEED *
MIN(1.0,
surf_fric_coeff/IDEAL_PADDLING_FRIC_COEFF)))*
fric_dir;
}
} else {
paddling_f = ppogl::Vec3d( 0., 0., 0. );
}
/*
* Add all the forces
*/
net_force = jump_f+grav_f+nml_f+fric_f+air_f+brake_f+paddling_f;
return net_force;
}
void brw_emit_vertices( struct brw_context *brw,
GLuint min_index,
GLuint max_index )
{
GLcontext *ctx = &brw->intel.ctx;
struct intel_context *intel = intel_context(ctx);
GLuint tmp = brw->vs.prog_data->inputs_read;
struct brw_vertex_element *enabled[VERT_ATTRIB_MAX];
GLuint i;
GLuint nr_enabled = 0;
/* Accumulate the list of enabled arrays. */
while (tmp) {
i = _mesa_ffsll(tmp)-1;
struct brw_vertex_element *input = &brw->vb.inputs[i];
tmp &= ~(1<<i);
enabled[nr_enabled++] = input;
}
/* Now emit VB and VEP state packets.
*
* This still defines a hardware VB for each input, even if they
* are interleaved or from the same VBO. TBD if this makes a
* performance difference.
*/
BEGIN_BATCH(1 + nr_enabled * 4, IGNORE_CLIPRECTS);
OUT_BATCH((CMD_VERTEX_BUFFER << 16) |
((1 + nr_enabled * 4) - 2));
for (i = 0; i < nr_enabled; i++) {
struct brw_vertex_element *input = enabled[i];
OUT_BATCH((i << BRW_VB0_INDEX_SHIFT) |
BRW_VB0_ACCESS_VERTEXDATA |
(input->stride << BRW_VB0_PITCH_SHIFT));
OUT_RELOC(input->bo,
DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_READ,
input->offset);
OUT_BATCH(max_index);
OUT_BATCH(0); /* Instance data step rate */
/* Unreference the buffer so it can get freed, now that we won't
* touch it any more.
*/
dri_bo_unreference(input->bo);
input->bo = NULL;
}
ADVANCE_BATCH();
BEGIN_BATCH(1 + nr_enabled * 2, IGNORE_CLIPRECTS);
OUT_BATCH((CMD_VERTEX_ELEMENT << 16) | ((1 + nr_enabled * 2) - 2));
for (i = 0; i < nr_enabled; i++) {
struct brw_vertex_element *input = enabled[i];
uint32_t format = get_surface_type(input->glarray->Type,
input->glarray->Size,
input->glarray->Normalized);
uint32_t comp0 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp1 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp2 = BRW_VE1_COMPONENT_STORE_SRC;
uint32_t comp3 = BRW_VE1_COMPONENT_STORE_SRC;
switch (input->glarray->Size) {
case 0: comp0 = BRW_VE1_COMPONENT_STORE_0;
case 1: comp1 = BRW_VE1_COMPONENT_STORE_0;
case 2: comp2 = BRW_VE1_COMPONENT_STORE_0;
case 3: comp3 = BRW_VE1_COMPONENT_STORE_1_FLT;
break;
}
OUT_BATCH((i << BRW_VE0_INDEX_SHIFT) |
BRW_VE0_VALID |
(format << BRW_VE0_FORMAT_SHIFT) |
(0 << BRW_VE0_SRC_OFFSET_SHIFT));
OUT_BATCH((comp0 << BRW_VE1_COMPONENT_0_SHIFT) |
(comp1 << BRW_VE1_COMPONENT_1_SHIFT) |
(comp2 << BRW_VE1_COMPONENT_2_SHIFT) |
(comp3 << BRW_VE1_COMPONENT_3_SHIFT) |
((i * 4) << BRW_VE1_DST_OFFSET_SHIFT));
}
ADVANCE_BATCH();
}
