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Simplify implementation of delta_time.

Browse Source 
src/osd/modules/render/d3d/d3dhlsl.cpp: Move time members
calculation to shaders::begin_draw.

	src/osd/modules/render/d3d/d3dhlsl.h: Remove update_t.
This commit is contained in:
Westley M. Martinez 2016-12-13 10:27:55 -08:00
parent fb747b6ca4
commit 70a9637eb5
2 changed files with 16 additions and 27 deletions
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40
src/osd/modules/render/d3d/d3dhlsl.cpp
View File

@ -164,15 +164,15 @@ private:
shaders::shaders() :
d3dintf(nullptr), machine(nullptr), d3d(nullptr), post_fx_enable(false), oversampling_enable(false),
update_t(true), num_screens(0), curr_screen(0), acc_t(0), delta_t(0), shadow_texture(nullptr),
options(nullptr), black_surface(nullptr), black_texture(nullptr), recording_movie(false),
render_snap(false), snap_copy_target(nullptr), snap_copy_texture(nullptr), snap_target(nullptr),
snap_texture(nullptr), snap_width(0), snap_height(0), initialized(false), backbuffer(nullptr),
curr_effect(nullptr), default_effect(nullptr), prescale_effect(nullptr), post_effect(nullptr),
distortion_effect(nullptr), focus_effect(nullptr), phosphor_effect(nullptr),
deconverge_effect(nullptr), color_effect(nullptr), ntsc_effect(nullptr), bloom_effect(nullptr),
downsample_effect(nullptr), vector_effect(nullptr), curr_texture(nullptr),
curr_render_target(nullptr), curr_poly(nullptr), d3dx_create_effect_from_file_ptr(nullptr)
num_screens(0), curr_screen(0), acc_t(0), delta_t(0), shadow_texture(nullptr), options(nullptr),
black_surface(nullptr), black_texture(nullptr), recording_movie(false), render_snap(false),
snap_copy_target(nullptr), snap_copy_texture(nullptr), snap_target(nullptr), snap_texture(nullptr),
snap_width(0), snap_height(0), initialized(false), backbuffer(nullptr), curr_effect(nullptr),
default_effect(nullptr), prescale_effect(nullptr), post_effect(nullptr), distortion_effect(nullptr),
focus_effect(nullptr), phosphor_effect(nullptr), deconverge_effect(nullptr), color_effect(nullptr),
ntsc_effect(nullptr), bloom_effect(nullptr), downsample_effect(nullptr), vector_effect(nullptr),
curr_texture(nullptr), curr_render_target(nullptr), curr_poly(nullptr),
d3dx_create_effect_from_file_ptr(nullptr)
{
}
@ -820,6 +820,8 @@ int shaders::create_resources()
void shaders::begin_draw()
{
double t;
if (!enabled())
{
return;
@ -827,6 +829,10 @@ void shaders::begin_draw()
curr_screen = 0;
curr_effect = default_effect;
// Update for delta_time
t = machine->time().as_double();
delta_t = t - acc_t;
acc_t = t;
default_effect->set_technique("ScreenTechnique");
post_effect->set_technique("DefaultTechnique");
@ -901,20 +907,6 @@ void shaders::blit(
curr_effect->end();
}
double shaders::delta_time()
{
double t;
if (update_t) {
t = machine->time().as_double();
delta_t = t - acc_t;
acc_t = t;
update_t = false;
}
return delta_t;
}
//============================================================
// shaders::find_render_target
//============================================================
@ -1429,8 +1421,6 @@ void shaders::render_quad(poly_info *poly, int vertnum)
else if (PRIMFLAG_GET_VECTORBUF(poly->flags()))
{
curr_screen = curr_screen < num_screens ? curr_screen : 0;
if (curr_screen == 0)
update_t = true;
int source_width = int(poly->prim_width() + 0.5f);
int source_height = int(poly->prim_height() + 0.5f);

3
src/osd/modules/render/d3d/d3dhlsl.h
View File

@ -320,7 +320,7 @@ private:
void render_snapshot(IDirect3DSurface9 *surface);
// Time since last call, only updates once per render of all screens
double delta_time();
double delta_time() { return delta_t; }
d3d_render_target* find_render_target(int source_width, int source_height, uint32_t screen_index);
rgb_t apply_color_convolution(rgb_t color);
@ -348,7 +348,6 @@ private:
bool post_fx_enable; // overall enable flag
bool oversampling_enable; // oversampling enable flag
bool update_t; // signal for delta_t to be updated
int num_screens; // number of emulated physical screens
int curr_screen; // current screen for render target operations
double acc_t; // accumulated machine time