N-archive/citra
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

OpenGL: Use uniforms for dist_atten_bias and dist_atten_scale

Browse source
This commit is contained in:
Jannik Vogel 2016-05-23 22:53:53 +02:00
parent e054e55ca2
commit 068bd6f728
3 changed files with 84 additions and 8 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

72
src/video_core/renderer_opengl/gl_rasterizer.cpp
View file

@ -518,6 +518,58 @@ void RasterizerOpenGL::NotifyPicaRegisterChanged(u32 id) {
SyncLightPosition(7);
break;
// Fragment lighting distance attenuation bias
case PICA_REG_INDEX_WORKAROUND(lighting.light[0].dist_atten_bias, 0x014A + 0 * 0x10):
SyncLightDistanceAttenuationBias(0);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[1].dist_atten_bias, 0x014A + 1 * 0x10):
SyncLightDistanceAttenuationBias(1);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[2].dist_atten_bias, 0x014A + 2 * 0x10):
SyncLightDistanceAttenuationBias(2);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[3].dist_atten_bias, 0x014A + 3 * 0x10):
SyncLightDistanceAttenuationBias(3);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[4].dist_atten_bias, 0x014A + 4 * 0x10):
SyncLightDistanceAttenuationBias(4);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[5].dist_atten_bias, 0x014A + 5 * 0x10):
SyncLightDistanceAttenuationBias(5);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[6].dist_atten_bias, 0x014A + 6 * 0x10):
SyncLightDistanceAttenuationBias(6);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[7].dist_atten_bias, 0x014A + 7 * 0x10):
SyncLightDistanceAttenuationBias(7);
break;
// Fragment lighting distance attenuation scale
case PICA_REG_INDEX_WORKAROUND(lighting.light[0].dist_atten_scale, 0x014B + 0 * 0x10):
SyncLightDistanceAttenuationScale(0);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[1].dist_atten_scale, 0x014B + 1 * 0x10):
SyncLightDistanceAttenuationScale(1);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[2].dist_atten_scale, 0x014B + 2 * 0x10):
SyncLightDistanceAttenuationScale(2);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[3].dist_atten_scale, 0x014B + 3 * 0x10):
SyncLightDistanceAttenuationScale(3);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[4].dist_atten_scale, 0x014B + 4 * 0x10):
SyncLightDistanceAttenuationScale(4);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[5].dist_atten_scale, 0x014B + 5 * 0x10):
SyncLightDistanceAttenuationScale(5);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[6].dist_atten_scale, 0x014B + 6 * 0x10):
SyncLightDistanceAttenuationScale(6);
break;
case PICA_REG_INDEX_WORKAROUND(lighting.light[7].dist_atten_scale, 0x014B + 7 * 0x10):
SyncLightDistanceAttenuationScale(7);
break;
// Fragment lighting global ambient color (emission + ambient * ambient)
case PICA_REG_INDEX_WORKAROUND(lighting.global_ambient, 0x1c0):
SyncGlobalAmbient();
@ -896,6 +948,8 @@ void RasterizerOpenGL::SetShader() {
SyncLightDiffuse(light_index);
SyncLightAmbient(light_index);
SyncLightPosition(light_index);
SyncLightDistanceAttenuationBias(light_index);
SyncLightDistanceAttenuationScale(light_index);
}
}
}
@ -1105,3 +1159,21 @@ void RasterizerOpenGL::SyncLightPosition(int light_index) {
uniform_block_data.dirty = true;
}
}
void RasterizerOpenGL::SyncLightDistanceAttenuationBias(int light_index) {
GLfloat dist_atten_bias = Pica::float20::FromRaw(Pica::g_state.regs.lighting.light[light_index].dist_atten_bias).ToFloat32();
if (dist_atten_bias != uniform_block_data.data.light_src[light_index].dist_atten_bias) {
uniform_block_data.data.light_src[light_index].dist_atten_bias = dist_atten_bias;
uniform_block_data.dirty = true;
}
}
void RasterizerOpenGL::SyncLightDistanceAttenuationScale(int light_index) {
GLfloat dist_atten_scale = Pica::float20::FromRaw(Pica::g_state.regs.lighting.light[light_index].dist_atten_scale).ToFloat32();
if (dist_atten_scale != uniform_block_data.data.light_src[light_index].dist_atten_scale) {
uniform_block_data.data.light_src[light_index].dist_atten_scale = dist_atten_scale;
uniform_block_data.dirty = true;
}
}

14
src/video_core/renderer_opengl/gl_rasterizer.h
View file

@ -92,8 +92,6 @@ union PicaShaderConfig {
state.lighting.light[light_index].directional = light.directional != 0;
state.lighting.light[light_index].two_sided_diffuse = light.two_sided_diffuse != 0;
state.lighting.light[light_index].dist_atten_enable = !regs.lighting.IsDistAttenDisabled(num);
state.lighting.light[light_index].dist_atten_bias = Pica::float20::FromRaw(light.dist_atten_bias).ToFloat32();
state.lighting.light[light_index].dist_atten_scale = Pica::float20::FromRaw(light.dist_atten_scale).ToFloat32();
}
state.lighting.lut_d0.enable = regs.lighting.disable_lut_d0 == 0;
@ -184,8 +182,6 @@ union PicaShaderConfig {
bool directional;
bool two_sided_diffuse;
bool dist_atten_enable;
GLfloat dist_atten_scale;
GLfloat dist_atten_bias;
} light[8];
bool enable;
@ -316,6 +312,8 @@ private:
alignas(16) GLvec3 diffuse;
alignas(16) GLvec3 ambient;
alignas(16) GLvec3 position;
GLfloat dist_atten_bias;
GLfloat dist_atten_scale;
};
/// Uniform structure for the Uniform Buffer Object, all members must be 16-byte aligned
@ -330,7 +328,7 @@ private:
LightSrc light_src[8];
};
static_assert(sizeof(UniformData) == 0x310, "The size of the UniformData structure has changed, update the structure in the shader");
static_assert(sizeof(UniformData) == 0x390, "The size of the UniformData structure has changed, update the structure in the shader");
static_assert(sizeof(UniformData) < 16384, "UniformData structure must be less than 16kb as per the OpenGL spec");
/// Sets the OpenGL shader in accordance with the current PICA register state
@ -402,6 +400,12 @@ private:
/// Syncs the specified light's position to match the PICA register
void SyncLightPosition(int light_index);
/// Syncs the specified light's distance attenuation bias to match the PICA register
void SyncLightDistanceAttenuationBias(int light_index);
/// Syncs the specified light's distance attenuation scale to match the PICA register
void SyncLightDistanceAttenuationScale(int light_index);
OpenGLState state;
RasterizerCacheOpenGL res_cache;

6
src/video_core/renderer_opengl/gl_shader_gen.cpp
View file

@ -439,9 +439,7 @@ static void WriteLighting(std::string& out, const PicaShaderConfig& config) {
// If enabled, compute distance attenuation value
std::string dist_atten = "1.0";
if (light_config.dist_atten_enable) {
std::string scale = std::to_string(light_config.dist_atten_scale);
std::string bias = std::to_string(light_config.dist_atten_bias);
std::string index = "(" + scale + " * length(-view - " + light_src + ".position) + " + bias + ")";
std::string index = "(" + light_src + ".dist_atten_scale * length(-view - " + light_src + ".position) + " + light_src + ".dist_atten_bias)";
index = "((clamp(" + index + ", 0.0, FLOAT_255)))";
const unsigned lut_num = ((unsigned)Regs::LightingSampler::DistanceAttenuation + light_config.num);
dist_atten = GetLutValue((Regs::LightingSampler)lut_num, index);
@ -549,6 +547,8 @@ struct LightSrc {
vec3 diffuse;
vec3 ambient;
vec3 position;
float dist_atten_bias;
float dist_atten_scale;
};
layout (std140) uniform shader_data {