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Add missing fragment lighting functionality

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This commit is contained in:
fincs 2015-11-28 15:56:20 +01:00
parent 912e9b152c
commit 4814f804c6
3 changed files with 73 additions and 1 deletions
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15
include/c3d/light.h
View File

@ -66,6 +66,21 @@ void C3D_LightEnvMaterial(C3D_LightEnv* env, const C3D_Material* mtl);
void C3D_LightEnvAmbient(C3D_LightEnv* env, float r, float g, float b);
void C3D_LightEnvLut(C3D_LightEnv* env, int lutId, int input, bool abs, C3D_LightLut* lut);
enum
{
GPU_SHADOW_PRIMARY = BIT(16),
GPU_SHADOW_SECONDARY = BIT(17),
GPU_INVERT_SHADOW = BIT(18),
GPU_SHADOW_ALPHA = BIT(19),
};
void C3D_LightEnvFresnel(C3D_LightEnv* env, GPU_FRESNELSEL selector);
void C3D_LightEnvBumpMode(C3D_LightEnv* env, GPU_BUMPMODE mode);
void C3D_LightEnvBumpSel(C3D_LightEnv* env, int texUnit);
void C3D_LightEnvShadowMode(C3D_LightEnv* env, u32 mode);
void C3D_LightEnvShadowSel(C3D_LightEnv* env, int texUnit);
void C3D_LightEnvClampHighlights(C3D_LightEnv* env, bool clamp);
//-----------------------------------------------------------------------------
// Light
//-----------------------------------------------------------------------------

12
source/light.c
View File

@ -1,5 +1,6 @@
#include <string.h>
#include "context.h"
#include <c3d/maths.h>
void C3Di_LightMtlBlend(C3D_Light* light)
{
@ -113,10 +114,19 @@ void C3D_LightSpotEnable(C3D_Light* light, bool enable)
C3Di_EnableCommon(light, enable, GPU_LC1_SPOTBIT(light->id));
}
static inline u16 floattofix2_11(float x)
{
return (u16)((s32)(x * (1U<<11)) & 0x1FFF);
}
void C3D_LightSpotDir(C3D_Light* light, float x, float y, float z)
{
C3Di_EnableCommon(light, true, GPU_LC1_SPOTBIT(light->id));
// TODO
C3D_FVec vec = { { 0.0, -z, -y, -x } };
FVec_Norm4(&vec);
light->conf.spotDir[0] = floattofix2_11(vec.x);
light->conf.spotDir[1] = floattofix2_11(vec.y);
light->conf.spotDir[2] = floattofix2_11(vec.z);
light->flags |= C3DF_Light_Dirty;
}

47
source/lightenv.c
View File

@ -221,3 +221,50 @@ void C3D_LightEnvLut(C3D_LightEnv* env, int lutId, int input, bool abs, C3D_Ligh
env->flags |= C3DF_LightEnv_Dirty;
}
void C3D_LightEnvFresnel(C3D_LightEnv* env, GPU_FRESNELSEL selector)
{
env->conf.config[0] &= ~(3<<2);
env->conf.config[0] |= (selector&3)<<2;
env->flags |= C3DF_LightEnv_Dirty;
}
void C3D_LightEnvBumpMode(C3D_LightEnv* env, GPU_BUMPMODE mode)
{
env->conf.config[0] &= ~(3<<28);
env->conf.config[0] |= (mode&3)<<28;
env->flags |= C3DF_LightEnv_Dirty;
}
void C3D_LightEnvBumpSel(C3D_LightEnv* env, int texUnit)
{
env->conf.config[0] &= ~(3<<22);
env->conf.config[0] |= (texUnit&3)<<22;
env->flags |= C3DF_LightEnv_Dirty;
}
void C3D_LightEnvShadowMode(C3D_LightEnv* env, u32 mode)
{
mode &= 0xF<<16;
if (mode & (GPU_SHADOW_PRIMARY | GPU_INVERT_SHADOW | GPU_SHADOW_ALPHA))
mode |= BIT(0);
env->conf.config[0] &= ~((3<<28) | BIT(0));
env->conf.config[0] |= mode;
env->flags |= C3DF_LightEnv_Dirty;
}
void C3D_LightEnvShadowSel(C3D_LightEnv* env, int texUnit)
{
env->conf.config[0] &= ~(3<<24);
env->conf.config[0] |= (texUnit&3)<<24;
env->flags |= C3DF_LightEnv_Dirty;
}
void C3D_LightEnvClampHighlights(C3D_LightEnv* env, bool clamp)
{
if (clamp)
env->conf.config[0] |= BIT(27);
else
env->conf.config[0] &= ~BIT(27);
env->flags |= C3DF_LightEnv_Dirty;
}