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- add support for choosing the particle style in the software renderer

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This commit is contained in:
Magnus Norddahl 2017-03-27 10:12:57 +02:00
parent 5f44bc4d5f
commit ad992d2ffd
4 changed files with 15 additions and 6 deletions
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11
src/swrenderer/drawers/r_draw.cpp
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@ -64,7 +64,7 @@ namespace swrenderer
int fuzzpos;
int fuzzviewheight;
uint32_t particle_texture[PARTICLE_TEXTURE_SIZE * PARTICLE_TEXTURE_SIZE];
uint32_t particle_texture[NUM_PARTICLE_TEXTURES][PARTICLE_TEXTURE_SIZE * PARTICLE_TEXTURE_SIZE];
short zeroarray[MAXWIDTH];
short screenheightarray[MAXWIDTH];
@ -139,6 +139,8 @@ namespace swrenderer
void R_InitParticleTexture()
{
static_assert(NUM_PARTICLE_TEXTURES == 3, "R_InitParticleTexture must be updated if NUM_PARTICLE_TEXTURES is changed");
double center = PARTICLE_TEXTURE_SIZE * 0.5f;
for (int y = 0; y < PARTICLE_TEXTURE_SIZE; y++)
{
@ -147,9 +149,12 @@ namespace swrenderer
double dx = (center - x - 0.5f) / center;
double dy = (center - y - 0.5f) / center;
double dist2 = dx * dx + dy * dy;
double alpha = clamp<double>(1.1f - dist2 * 1.1f, 0.0f, 1.0f);
double round_alpha = clamp<double>(1.7f - dist2 * 1.7f, 0.0f, 1.0f);
double smooth_alpha = clamp<double>(1.1f - dist2 * 1.1f, 0.0f, 1.0f);
particle_texture[x + y * PARTICLE_TEXTURE_SIZE] = (int)(alpha * 128.0f + 0.5f);
particle_texture[0][x + y * PARTICLE_TEXTURE_SIZE] = 128;
particle_texture[1][x + y * PARTICLE_TEXTURE_SIZE] = (int)(round_alpha * 128.0f + 0.5f);
particle_texture[2][x + y * PARTICLE_TEXTURE_SIZE] = (int)(smooth_alpha * 128.0f + 0.5f);
}
}
}

3
src/swrenderer/drawers/r_draw.h
View file

@ -44,8 +44,9 @@ namespace swrenderer
extern int fuzzpos;
extern int fuzzviewheight;
#define NUM_PARTICLE_TEXTURES 3
#define PARTICLE_TEXTURE_SIZE 64
extern uint32_t particle_texture[PARTICLE_TEXTURE_SIZE * PARTICLE_TEXTURE_SIZE];
extern uint32_t particle_texture[NUM_PARTICLE_TEXTURES][PARTICLE_TEXTURE_SIZE * PARTICLE_TEXTURE_SIZE];
class SWPixelFormatDrawers
{

4
src/swrenderer/drawers/r_draw_pal.cpp
View file

@ -48,6 +48,7 @@
// [SP] r_blendmethod - false = rgb555 matching (ZDoom classic), true = rgb666 (refactored)
CVAR(Bool, r_blendmethod, false, CVAR_GLOBALCONFIG | CVAR_ARCHIVE)
EXTERN_CVAR(Int, gl_particles_style)
/*
[RH] This translucency algorithm is based on DOSDoom 0.65's, but uses
@ -2946,7 +2947,8 @@ namespace swrenderer
uint8_t *dest = thread->dest_for_thread(_dest_y, pitch, _dest);
pitch = pitch * thread->num_cores;
const uint32_t *source = &particle_texture[(_fracposx >> FRACBITS) * PARTICLE_TEXTURE_SIZE];
int particle_texture_index = MIN<int>(gl_particles_style, NUM_PARTICLE_TEXTURES - 1);
const uint32_t *source = &particle_texture[particle_texture_index][(_fracposx >> FRACBITS) * PARTICLE_TEXTURE_SIZE];
uint32_t particle_alpha = _alpha;
uint32_t fracstep = PARTICLE_TEXTURE_SIZE * FRACUNIT / _count;

3
src/swrenderer/drawers/r_draw_rgba.cpp
View file

@ -780,7 +780,8 @@ namespace swrenderer
uint32_t *dest = thread->dest_for_thread(_dest_y, _pitch, _dest);
int pitch = _pitch * thread->num_cores;
const uint32_t *source = &particle_texture[(_fracposx >> FRACBITS) * PARTICLE_TEXTURE_SIZE];
int particle_texture_index = MIN<int>(gl_particles_style, NUM_PARTICLE_TEXTURES - 1);
const uint32_t *source = &particle_texture[particle_texture_index][(_fracposx >> FRACBITS) * PARTICLE_TEXTURE_SIZE];
uint32_t particle_alpha = _alpha;
uint32_t fracstep = PARTICLE_TEXTURE_SIZE * FRACUNIT / _count;