X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=src%2Fmesa%2Ftnl%2Ft_vb_lighttmp.h;h=3aebcd4b79949db6375a42adba492977721ef550;hb=fed60e3c73c7be7c1e2194054daf29381d0ddc18;hp=4ebef2356f50e7ca459b9fff1423999778b5c553;hpb=49b3f4a6bc498d964296f7305b490ec983b9fac4;p=mesa.git diff --git a/src/mesa/tnl/t_vb_lighttmp.h b/src/mesa/tnl/t_vb_lighttmp.h index 4ebef2356f5..3aebcd4b799 100644 --- a/src/mesa/tnl/t_vb_lighttmp.h +++ b/src/mesa/tnl/t_vb_lighttmp.h @@ -1,6 +1,5 @@ /* * Mesa 3-D graphics library - * Version: 5.1 * * Copyright (C) 1999-2003 Brian Paul All Rights Reserved. * @@ -17,14 +16,14 @@ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. * * * Authors: - * Brian Paul - * Keith Whitwell + * Brian Paul Keith Whitwell */ @@ -44,7 +43,7 @@ * stage is the lighting stage-private data * input is the vector of eye or object-space vertex coordinates */ -static void TAG(light_rgba_spec)( GLcontext *ctx, +static void TAG(light_rgba_spec)( struct gl_context *ctx, struct vertex_buffer *VB, struct tnl_pipeline_stage *stage, GLvector4f *input ) @@ -69,7 +68,7 @@ static void TAG(light_rgba_spec)( GLcontext *ctx, const GLuint nr = VB->Count; #ifdef TRACE - fprintf(stderr, "%s\n", __FUNCTION__ ); + fprintf(stderr, "%s\n", __func__ ); #endif VB->AttribPtr[_TNL_ATTRIB_COLOR0] = &store->LitColor[0]; @@ -113,7 +112,7 @@ static void TAG(light_rgba_spec)( GLcontext *ctx, GLint side; GLfloat contrib[3]; GLfloat attenuation; - GLfloat VP[3]; /* unit vector from vertex to light */ + GLfloat VP[3]; /* unit vector from vertex to light */ GLfloat n_dot_VP; /* n dot VP */ GLfloat *h; @@ -130,7 +129,7 @@ static void TAG(light_rgba_spec)( GLcontext *ctx, d = (GLfloat) LEN_3FV( VP ); - if (d > 1e-6) { + if (d > 1e-6F) { GLfloat invd = 1.0F / d; SELF_SCALE_SCALAR_3V(VP, invd); } @@ -147,16 +146,13 @@ static void TAG(light_rgba_spec)( GLcontext *ctx, continue; /* this light makes no contribution */ } else { - GLdouble x = PV_dot_dir * (EXP_TABLE_SIZE-1); - GLint k = (GLint) x; - GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0] - + (x-k)*light->_SpotExpTable[k][1]); + GLfloat spot = powf(PV_dot_dir, light->SpotExponent); attenuation *= spot; } } } - if (attenuation < 1e-3) + if (attenuation < 1e-3F) continue; /* this light makes no contribution */ /* Compute dot product or normal and vector from V to light pos */ @@ -207,11 +203,8 @@ static void TAG(light_rgba_spec)( GLcontext *ctx, n_dot_h = correction * DOT3(normal, h); if (n_dot_h > 0.0F) { - GLfloat spec_coef; - struct gl_shine_tab *tab = ctx->_ShineTable[side]; - GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec_coef ); - - if (spec_coef > 1.0e-10) { + GLfloat spec_coef = lookup_shininess(ctx, side, n_dot_h); + if (spec_coef > 1.0e-10F) { spec_coef *= attenuation; ACC_SCALE_SCALAR_3V( spec[side], spec_coef, light->_MatSpecular[side]); @@ -232,7 +225,7 @@ static void TAG(light_rgba_spec)( GLcontext *ctx, } -static void TAG(light_rgba)( GLcontext *ctx, +static void TAG(light_rgba)( struct gl_context *ctx, struct vertex_buffer *VB, struct tnl_pipeline_stage *stage, GLvector4f *input ) @@ -256,7 +249,7 @@ static void TAG(light_rgba)( GLcontext *ctx, const GLuint nr = VB->Count; #ifdef TRACE - fprintf(stderr, "%s\n", __FUNCTION__ ); + fprintf(stderr, "%s\n", __func__ ); #endif VB->AttribPtr[_TNL_ATTRIB_COLOR0] = &store->LitColor[0]; @@ -290,12 +283,11 @@ static void TAG(light_rgba)( GLcontext *ctx, /* Add contribution from each enabled light source */ foreach (light, &ctx->Light.EnabledList) { - GLfloat n_dot_h; GLfloat correction; GLint side; GLfloat contrib[3]; - GLfloat attenuation = 1.0; + GLfloat attenuation; GLfloat VP[3]; /* unit vector from vertex to light */ GLfloat n_dot_VP; /* n dot VP */ GLfloat *h; @@ -309,12 +301,11 @@ static void TAG(light_rgba)( GLcontext *ctx, else { GLfloat d; /* distance from vertex to light */ - SUB_3V(VP, light->_Position, vertex); d = (GLfloat) LEN_3FV( VP ); - if ( d > 1e-6) { + if (d > 1e-6F) { GLfloat invd = 1.0F / d; SELF_SCALE_SCALAR_3V(VP, invd); } @@ -331,16 +322,13 @@ static void TAG(light_rgba)( GLcontext *ctx, continue; /* this light makes no contribution */ } else { - GLdouble x = PV_dot_dir * (EXP_TABLE_SIZE-1); - GLint k = (GLint) x; - GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0] - + (x-k)*light->_SpotExpTable[k][1]); + GLfloat spot = powf(PV_dot_dir, light->SpotExponent); attenuation *= spot; } } } - if (attenuation < 1e-3) + if (attenuation < 1e-3F) continue; /* this light makes no contribution */ /* Compute dot product or normal and vector from V to light pos */ @@ -391,13 +379,8 @@ static void TAG(light_rgba)( GLcontext *ctx, n_dot_h = correction * DOT3(normal, h); - if (n_dot_h > 0.0F) - { - GLfloat spec_coef; - struct gl_shine_tab *tab = ctx->_ShineTable[side]; - - GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec_coef ); - + if (n_dot_h > 0.0F) { + GLfloat spec_coef = lookup_shininess(ctx, side, n_dot_h); ACC_SCALE_SCALAR_3V( contrib, spec_coef, light->_MatSpecular[side]); } @@ -421,7 +404,7 @@ static void TAG(light_rgba)( GLcontext *ctx, /* As below, but with just a single light. */ -static void TAG(light_fast_rgba_single)( GLcontext *ctx, +static void TAG(light_fast_rgba_single)( struct gl_context *ctx, struct vertex_buffer *VB, struct tnl_pipeline_stage *stage, GLvector4f *input ) @@ -444,7 +427,7 @@ static void TAG(light_fast_rgba_single)( GLcontext *ctx, #endif #ifdef TRACE - fprintf(stderr, "%s\n", __FUNCTION__ ); + fprintf(stderr, "%s\n", __func__ ); #endif (void) input; /* doesn't refer to Eye or Obj */ @@ -497,8 +480,7 @@ static void TAG(light_fast_rgba_single)( GLcontext *ctx, COPY_3V(sum, base[1]); ACC_SCALE_SCALAR_3V(sum, -n_dot_VP, light->_MatDiffuse[1]); if (n_dot_h > 0.0F) { - GLfloat spec; - GET_SHINE_TAB_ENTRY( ctx->_ShineTable[1], n_dot_h, spec ); + GLfloat spec = lookup_shininess(ctx, 1, n_dot_h); ACC_SCALE_SCALAR_3V(sum, spec, light->_MatSpecular[1]); } COPY_3V(Bcolor[j], sum ); @@ -512,10 +494,8 @@ static void TAG(light_fast_rgba_single)( GLcontext *ctx, COPY_3V(sum, base[0]); ACC_SCALE_SCALAR_3V(sum, n_dot_VP, light->_MatDiffuse[0]); if (n_dot_h > 0.0F) { - GLfloat spec; - GET_SHINE_TAB_ENTRY( ctx->_ShineTable[0], n_dot_h, spec ); + GLfloat spec = lookup_shininess(ctx, 0, n_dot_h); ACC_SCALE_SCALAR_3V(sum, spec, light->_MatSpecular[0]); - } COPY_3V(Fcolor[j], sum ); Fcolor[j][3] = base[0][3]; @@ -529,7 +509,7 @@ static void TAG(light_fast_rgba_single)( GLcontext *ctx, /* Light infinite lights */ -static void TAG(light_fast_rgba)( GLcontext *ctx, +static void TAG(light_fast_rgba)( struct gl_context *ctx, struct vertex_buffer *VB, struct tnl_pipeline_stage *stage, GLvector4f *input ) @@ -551,7 +531,7 @@ static void TAG(light_fast_rgba)( GLcontext *ctx, const struct gl_light *light; #ifdef TRACE - fprintf(stderr, "%s %d\n", __FUNCTION__, nr ); + fprintf(stderr, "%s %d\n", __func__, nr ); #endif (void) input; @@ -606,8 +586,7 @@ static void TAG(light_fast_rgba)( GLcontext *ctx, ACC_SCALE_SCALAR_3V(sum[0], n_dot_VP, light->_MatDiffuse[0]); n_dot_h = DOT3(normal, light->_h_inf_norm); if (n_dot_h > 0.0F) { - struct gl_shine_tab *tab = ctx->_ShineTable[0]; - GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec ); + spec = lookup_shininess(ctx, 0, n_dot_h); ACC_SCALE_SCALAR_3V( sum[0], spec, light->_MatSpecular[0]); } } @@ -616,8 +595,7 @@ static void TAG(light_fast_rgba)( GLcontext *ctx, ACC_SCALE_SCALAR_3V(sum[1], -n_dot_VP, light->_MatDiffuse[1]); n_dot_h = -DOT3(normal, light->_h_inf_norm); if (n_dot_h > 0.0F) { - struct gl_shine_tab *tab = ctx->_ShineTable[1]; - GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec ); + spec = lookup_shininess(ctx, 1, n_dot_h); ACC_SCALE_SCALAR_3V( sum[1], spec, light->_MatSpecular[1]); } } @@ -637,185 +615,12 @@ static void TAG(light_fast_rgba)( GLcontext *ctx, - -/* - * Use current lighting/material settings to compute the color indexes - * for an array of vertices. - * Input: n - number of vertices to light - * side - 0=use front material, 1=use back material - * vertex - array of [n] vertex position in eye coordinates - * normal - array of [n] surface normal vector - * Output: indexResult - resulting array of [n] color indexes - */ -static void TAG(light_ci)( GLcontext *ctx, - struct vertex_buffer *VB, - struct tnl_pipeline_stage *stage, - GLvector4f *input ) -{ - struct light_stage_data *store = LIGHT_STAGE_DATA(stage); - GLuint j; - const GLuint vstride = input->stride; - const GLfloat *vertex = (GLfloat *) input->data; - const GLuint nstride = VB->AttribPtr[_TNL_ATTRIB_NORMAL]->stride; - const GLfloat *normal = (GLfloat *)VB->AttribPtr[_TNL_ATTRIB_NORMAL]->data; - GLfloat *indexResult[2]; - const GLuint nr = VB->Count; - -#ifdef TRACE - fprintf(stderr, "%s\n", __FUNCTION__ ); -#endif - - VB->AttribPtr[_TNL_ATTRIB_COLOR_INDEX] = &store->LitIndex[0]; -#if IDX & LIGHT_TWOSIDE - VB->BackfaceIndexPtr = &store->LitIndex[1]; -#endif - - indexResult[0] = (GLfloat *)VB->AttribPtr[_TNL_ATTRIB_COLOR_INDEX]->data; -#if IDX & LIGHT_TWOSIDE - indexResult[1] = (GLfloat *)VB->BackfaceIndexPtr->data; -#endif - - /* loop over vertices */ - for (j=0; jLight.EnabledList) { - - GLfloat attenuation = 1.0F; - GLfloat VP[3]; /* unit vector from vertex to light */ - GLfloat n_dot_VP; /* dot product of l and n */ - GLfloat *h, n_dot_h, correction = 1.0; - - /* compute l and attenuation */ - if (!(light->_Flags & LIGHT_POSITIONAL)) { - /* directional light */ - COPY_3V(VP, light->_VP_inf_norm); - } - else { - GLfloat d; /* distance from vertex to light */ - - SUB_3V(VP, light->_Position, vertex); - - d = (GLfloat) LEN_3FV( VP ); - if ( d > 1e-6) { - GLfloat invd = 1.0F / d; - SELF_SCALE_SCALAR_3V(VP, invd); - } - - attenuation = 1.0F / (light->ConstantAttenuation + d * - (light->LinearAttenuation + d * - light->QuadraticAttenuation)); - - /* spotlight attenuation */ - if (light->_Flags & LIGHT_SPOT) { - GLfloat PV_dot_dir = - DOT3(VP, light->_NormSpotDirection); - if (PV_dot_dir < light->_CosCutoff) { - continue; /* this light makes no contribution */ - } - else { - GLdouble x = PV_dot_dir * (EXP_TABLE_SIZE-1); - GLint k = (GLint) x; - GLfloat spot = (GLfloat) (light->_SpotExpTable[k][0] - + (x-k)*light->_SpotExpTable[k][1]); - attenuation *= spot; - } - } - } - - if (attenuation < 1e-3) - continue; /* this light makes no contribution */ - - n_dot_VP = DOT3( normal, VP ); - - /* which side are we lighting? */ - if (n_dot_VP < 0.0F) { -#if IDX & LIGHT_TWOSIDE - side = 1; - correction = -1; - n_dot_VP = -n_dot_VP; -#else - continue; -#endif - } - - /* accumulate diffuse term */ - diffuse[side] += n_dot_VP * light->_dli * attenuation; - - /* specular term */ - if (ctx->Light.Model.LocalViewer) { - GLfloat v[3]; - COPY_3V(v, vertex); - NORMALIZE_3FV(v); - SUB_3V(VP, VP, v); /* h = VP + VPe */ - h = VP; - NORMALIZE_3FV(h); - } - else if (light->_Flags & LIGHT_POSITIONAL) { - h = VP; - /* Strangely, disabling this addition fixes a conformance - * problem. If this code is enabled, l_sed.c fails. - */ - /*ACC_3V(h, ctx->_EyeZDir);*/ - NORMALIZE_3FV(h); - } - else { - h = light->_h_inf_norm; - } - - n_dot_h = correction * DOT3(normal, h); - if (n_dot_h > 0.0F) { - GLfloat spec_coef; - struct gl_shine_tab *tab = ctx->_ShineTable[side]; - GET_SHINE_TAB_ENTRY( tab, n_dot_h, spec_coef); - specular[side] += spec_coef * light->_sli * attenuation; - } - } /*loop over lights*/ - - /* Now compute final color index */ - for (side = 0 ; side < NR_SIDES ; side++) { - const GLfloat *ind = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_INDEXES + side]; - GLfloat index; - - if (specular[side] > 1.0F) { - index = ind[MAT_INDEX_SPECULAR]; - } - else { - GLfloat d_a = ind[MAT_INDEX_DIFFUSE] - ind[MAT_INDEX_AMBIENT]; - GLfloat s_a = ind[MAT_INDEX_SPECULAR] - ind[MAT_INDEX_AMBIENT]; - index = (ind[MAT_INDEX_AMBIENT] - + diffuse[side] * (1.0F-specular[side]) * d_a - + specular[side] * s_a); - if (index > ind[MAT_INDEX_SPECULAR]) { - index = ind[MAT_INDEX_SPECULAR]; - } - } - indexResult[side][j] = index; - } - } /*for vertex*/ -} - - - static void TAG(init_light_tab)( void ) { _tnl_light_tab[IDX] = TAG(light_rgba); _tnl_light_fast_tab[IDX] = TAG(light_fast_rgba); _tnl_light_fast_single_tab[IDX] = TAG(light_fast_rgba_single); _tnl_light_spec_tab[IDX] = TAG(light_rgba_spec); - _tnl_light_ci_tab[IDX] = TAG(light_ci); }