From af0399a1ce5acea464219f63399284cb175fa1f4 Mon Sep 17 00:00:00 2001 From: Brian Paul Date: Wed, 21 Oct 2015 13:42:21 -0600 Subject: [PATCH] tnl: remove t_rasterpos.c Reviewed-by: Roland Scheidegger --- src/mesa/Makefile.sources | 1 - src/mesa/tnl/t_rasterpos.c | 478 ------------------------------------- 2 files changed, 479 deletions(-) delete mode 100644 src/mesa/tnl/t_rasterpos.c diff --git a/src/mesa/Makefile.sources b/src/mesa/Makefile.sources index 34fb4461985..4bcaa62f48e 100644 --- a/src/mesa/Makefile.sources +++ b/src/mesa/Makefile.sources @@ -345,7 +345,6 @@ TNL_FILES = \ tnl/tnl.h \ tnl/t_pipeline.c \ tnl/t_pipeline.h \ - tnl/t_rasterpos.c \ tnl/t_vb_cliptmp.h \ tnl/t_vb_fog.c \ tnl/t_vb_light.c \ diff --git a/src/mesa/tnl/t_rasterpos.c b/src/mesa/tnl/t_rasterpos.c deleted file mode 100644 index 4bd9ac8539e..00000000000 --- a/src/mesa/tnl/t_rasterpos.c +++ /dev/null @@ -1,478 +0,0 @@ -/* - * Mesa 3-D graphics library - * - * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * 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 - * 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. - */ - - -#include "c99_math.h" -#include "main/glheader.h" -#include "main/feedback.h" -#include "main/light.h" -#include "main/macros.h" -#include "util/simple_list.h" -#include "main/mtypes.h" -#include "main/viewport.h" - -#include "math/m_matrix.h" -#include "tnl/tnl.h" - - - -/** - * Clip a point against the view volume. - * - * \param v vertex vector describing the point to clip. - * - * \return zero if outside view volume, or one if inside. - */ -static GLuint -viewclip_point_xy( const GLfloat v[] ) -{ - if ( v[0] > v[3] || v[0] < -v[3] - || v[1] > v[3] || v[1] < -v[3] ) { - return 0; - } - else { - return 1; - } -} - - -/** - * Clip a point against the far/near Z clipping planes. - * - * \param v vertex vector describing the point to clip. - * - * \return zero if outside view volume, or one if inside. - */ -static GLuint -viewclip_point_z( const GLfloat v[] ) -{ - if (v[2] > v[3] || v[2] < -v[3] ) { - return 0; - } - else { - return 1; - } -} - - -/** - * Clip a point against the user clipping planes. - * - * \param ctx GL context. - * \param v vertex vector describing the point to clip. - * - * \return zero if the point was clipped, or one otherwise. - */ -static GLuint -userclip_point( struct gl_context *ctx, const GLfloat v[] ) -{ - GLuint p; - - for (p = 0; p < ctx->Const.MaxClipPlanes; p++) { - if (ctx->Transform.ClipPlanesEnabled & (1 << p)) { - GLfloat dot = v[0] * ctx->Transform._ClipUserPlane[p][0] - + v[1] * ctx->Transform._ClipUserPlane[p][1] - + v[2] * ctx->Transform._ClipUserPlane[p][2] - + v[3] * ctx->Transform._ClipUserPlane[p][3]; - if (dot < 0.0F) { - return 0; - } - } - } - - return 1; -} - - -/** - * Compute lighting for the raster position. RGB modes computed. - * \param ctx the context - * \param vertex vertex location - * \param normal normal vector - * \param Rcolor returned color - * \param Rspec returned specular color (if separate specular enabled) - */ -static void -shade_rastpos(struct gl_context *ctx, - const GLfloat vertex[4], - const GLfloat normal[3], - GLfloat Rcolor[4], - GLfloat Rspec[4]) -{ - /*const*/ GLfloat (*base)[3] = ctx->Light._BaseColor; - const struct gl_light *light; - GLfloat diffuseColor[4], specularColor[4]; /* for RGB mode only */ - - COPY_3V(diffuseColor, base[0]); - diffuseColor[3] = CLAMP( - ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3], 0.0F, 1.0F ); - ASSIGN_4V(specularColor, 0.0, 0.0, 0.0, 1.0); - - foreach (light, &ctx->Light.EnabledList) { - GLfloat attenuation = 1.0; - GLfloat VP[3]; /* vector from vertex to light pos */ - GLfloat n_dot_VP; - GLfloat diffuseContrib[3], specularContrib[3]; - - if (!(light->_Flags & LIGHT_POSITIONAL)) { - /* light at infinity */ - COPY_3V(VP, light->_VP_inf_norm); - attenuation = light->_VP_inf_spot_attenuation; - } - else { - /* local/positional light */ - GLfloat d; - - /* VP = vector from vertex pos to light[i].pos */ - SUB_3V(VP, light->_Position, vertex); - /* d = length(VP) */ - d = (GLfloat) LEN_3FV( VP ); - if (d > 1.0e-6F) { - /* normalize VP */ - GLfloat invd = 1.0F / d; - SELF_SCALE_SCALAR_3V(VP, invd); - } - - /* atti */ - attenuation = 1.0F / (light->ConstantAttenuation + d * - (light->LinearAttenuation + d * - light->QuadraticAttenuation)); - - if (light->_Flags & LIGHT_SPOT) { - GLfloat PV_dot_dir = - DOT3(VP, light->_NormSpotDirection); - - if (PV_dot_dir_CosCutoff) { - continue; - } - else { - GLfloat spot = powf(PV_dot_dir, light->SpotExponent); - attenuation *= spot; - } - } - } - - if (attenuation < 1e-3F) - continue; - - n_dot_VP = DOT3( normal, VP ); - - if (n_dot_VP < 0.0F) { - ACC_SCALE_SCALAR_3V(diffuseColor, attenuation, light->_MatAmbient[0]); - continue; - } - - /* Ambient + diffuse */ - COPY_3V(diffuseContrib, light->_MatAmbient[0]); - ACC_SCALE_SCALAR_3V(diffuseContrib, n_dot_VP, light->_MatDiffuse[0]); - - /* Specular */ - { - const GLfloat *h; - GLfloat n_dot_h; - - ASSIGN_3V(specularContrib, 0.0, 0.0, 0.0); - - if (ctx->Light.Model.LocalViewer) { - GLfloat v[3]; - COPY_3V(v, vertex); - NORMALIZE_3FV(v); - SUB_3V(VP, VP, v); - NORMALIZE_3FV(VP); - h = VP; - } - else if (light->_Flags & LIGHT_POSITIONAL) { - ACC_3V(VP, ctx->_EyeZDir); - NORMALIZE_3FV(VP); - h = VP; - } - else { - h = light->_h_inf_norm; - } - - n_dot_h = DOT3(normal, h); - - if (n_dot_h > 0.0F) { - GLfloat shine; - GLfloat spec_coef; - - shine = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SHININESS][0]; - spec_coef = powf(n_dot_h, shine); - - if (spec_coef > 1.0e-10F) { - if (ctx->Light.Model.ColorControl==GL_SEPARATE_SPECULAR_COLOR) { - ACC_SCALE_SCALAR_3V( specularContrib, spec_coef, - light->_MatSpecular[0]); - } - else { - ACC_SCALE_SCALAR_3V( diffuseContrib, spec_coef, - light->_MatSpecular[0]); - } - } - } - } - - ACC_SCALE_SCALAR_3V( diffuseColor, attenuation, diffuseContrib ); - ACC_SCALE_SCALAR_3V( specularColor, attenuation, specularContrib ); - } - - Rcolor[0] = CLAMP(diffuseColor[0], 0.0F, 1.0F); - Rcolor[1] = CLAMP(diffuseColor[1], 0.0F, 1.0F); - Rcolor[2] = CLAMP(diffuseColor[2], 0.0F, 1.0F); - Rcolor[3] = CLAMP(diffuseColor[3], 0.0F, 1.0F); - Rspec[0] = CLAMP(specularColor[0], 0.0F, 1.0F); - Rspec[1] = CLAMP(specularColor[1], 0.0F, 1.0F); - Rspec[2] = CLAMP(specularColor[2], 0.0F, 1.0F); - Rspec[3] = CLAMP(specularColor[3], 0.0F, 1.0F); -} - - -/** - * Do texgen needed for glRasterPos. - * \param ctx rendering context - * \param vObj object-space vertex coordinate - * \param vEye eye-space vertex coordinate - * \param normal vertex normal - * \param unit texture unit number - * \param texcoord incoming texcoord and resulting texcoord - */ -static void -compute_texgen(struct gl_context *ctx, const GLfloat vObj[4], const GLfloat vEye[4], - const GLfloat normal[3], GLuint unit, GLfloat texcoord[4]) -{ - const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - - /* always compute sphere map terms, just in case */ - GLfloat u[3], two_nu, rx, ry, rz, m, mInv; - COPY_3V(u, vEye); - NORMALIZE_3FV(u); - two_nu = 2.0F * DOT3(normal, u); - rx = u[0] - normal[0] * two_nu; - ry = u[1] - normal[1] * two_nu; - rz = u[2] - normal[2] * two_nu; - m = rx * rx + ry * ry + (rz + 1.0F) * (rz + 1.0F); - if (m > 0.0F) - mInv = 0.5F * (1.0f / sqrtf(m)); - else - mInv = 0.0F; - - if (texUnit->TexGenEnabled & S_BIT) { - switch (texUnit->GenS.Mode) { - case GL_OBJECT_LINEAR: - texcoord[0] = DOT4(vObj, texUnit->GenS.ObjectPlane); - break; - case GL_EYE_LINEAR: - texcoord[0] = DOT4(vEye, texUnit->GenS.EyePlane); - break; - case GL_SPHERE_MAP: - texcoord[0] = rx * mInv + 0.5F; - break; - case GL_REFLECTION_MAP: - texcoord[0] = rx; - break; - case GL_NORMAL_MAP: - texcoord[0] = normal[0]; - break; - default: - _mesa_problem(ctx, "Bad S texgen in compute_texgen()"); - return; - } - } - - if (texUnit->TexGenEnabled & T_BIT) { - switch (texUnit->GenT.Mode) { - case GL_OBJECT_LINEAR: - texcoord[1] = DOT4(vObj, texUnit->GenT.ObjectPlane); - break; - case GL_EYE_LINEAR: - texcoord[1] = DOT4(vEye, texUnit->GenT.EyePlane); - break; - case GL_SPHERE_MAP: - texcoord[1] = ry * mInv + 0.5F; - break; - case GL_REFLECTION_MAP: - texcoord[1] = ry; - break; - case GL_NORMAL_MAP: - texcoord[1] = normal[1]; - break; - default: - _mesa_problem(ctx, "Bad T texgen in compute_texgen()"); - return; - } - } - - if (texUnit->TexGenEnabled & R_BIT) { - switch (texUnit->GenR.Mode) { - case GL_OBJECT_LINEAR: - texcoord[2] = DOT4(vObj, texUnit->GenR.ObjectPlane); - break; - case GL_EYE_LINEAR: - texcoord[2] = DOT4(vEye, texUnit->GenR.EyePlane); - break; - case GL_REFLECTION_MAP: - texcoord[2] = rz; - break; - case GL_NORMAL_MAP: - texcoord[2] = normal[2]; - break; - default: - _mesa_problem(ctx, "Bad R texgen in compute_texgen()"); - return; - } - } - - if (texUnit->TexGenEnabled & Q_BIT) { - switch (texUnit->GenQ.Mode) { - case GL_OBJECT_LINEAR: - texcoord[3] = DOT4(vObj, texUnit->GenQ.ObjectPlane); - break; - case GL_EYE_LINEAR: - texcoord[3] = DOT4(vEye, texUnit->GenQ.EyePlane); - break; - default: - _mesa_problem(ctx, "Bad Q texgen in compute_texgen()"); - return; - } - } -} - - -/** - * glRasterPos transformation. Typically called via ctx->Driver.RasterPos(). - * XXX some of this code (such as viewport xform, clip testing and setting - * of ctx->Current.Raster* fields) could get lifted up into the - * main/rasterpos.c code. - * - * \param vObj vertex position in object space - */ -void -_tnl_RasterPos(struct gl_context *ctx, const GLfloat vObj[4]) -{ - if (ctx->VertexProgram._Enabled) { - /* XXX implement this */ - _mesa_problem(ctx, "Vertex programs not implemented for glRasterPos"); - return; - } - else { - GLfloat eye[4], clip[4], ndc[3], d; - GLfloat *norm, eyenorm[3]; - GLfloat *objnorm = ctx->Current.Attrib[VERT_ATTRIB_NORMAL]; - float scale[3], translate[3]; - - /* apply modelview matrix: eye = MV * obj */ - TRANSFORM_POINT( eye, ctx->ModelviewMatrixStack.Top->m, vObj ); - /* apply projection matrix: clip = Proj * eye */ - TRANSFORM_POINT( clip, ctx->ProjectionMatrixStack.Top->m, eye ); - - /* clip to view volume. */ - if (!ctx->Transform.DepthClamp) { - if (viewclip_point_z(clip) == 0) { - ctx->Current.RasterPosValid = GL_FALSE; - return; - } - } - if (!ctx->Transform.RasterPositionUnclipped) { - if (viewclip_point_xy(clip) == 0) { - ctx->Current.RasterPosValid = GL_FALSE; - return; - } - } - - /* clip to user clipping planes */ - if (ctx->Transform.ClipPlanesEnabled && !userclip_point(ctx, clip)) { - ctx->Current.RasterPosValid = GL_FALSE; - return; - } - - /* ndc = clip / W */ - d = (clip[3] == 0.0F) ? 1.0F : 1.0F / clip[3]; - ndc[0] = clip[0] * d; - ndc[1] = clip[1] * d; - ndc[2] = clip[2] * d; - /* wincoord = viewport_mapping(ndc) */ - _mesa_get_viewport_xform(ctx, 0, scale, translate); - ctx->Current.RasterPos[0] = ndc[0] * scale[0] + translate[0]; - ctx->Current.RasterPos[1] = ndc[1] * scale[1] + translate[1]; - ctx->Current.RasterPos[2] = ndc[2] * scale[2] + translate[2]; - ctx->Current.RasterPos[3] = clip[3]; - - if (ctx->Transform.DepthClamp) { - ctx->Current.RasterPos[3] = CLAMP(ctx->Current.RasterPos[3], - ctx->ViewportArray[0].Near, - ctx->ViewportArray[0].Far); - } - - /* compute raster distance */ - if (ctx->Fog.FogCoordinateSource == GL_FOG_COORDINATE_EXT) - ctx->Current.RasterDistance = ctx->Current.Attrib[VERT_ATTRIB_FOG][0]; - else - ctx->Current.RasterDistance = - sqrtf( eye[0]*eye[0] + eye[1]*eye[1] + eye[2]*eye[2] ); - - /* compute transformed normal vector (for lighting or texgen) */ - if (ctx->_NeedEyeCoords) { - const GLfloat *inv = ctx->ModelviewMatrixStack.Top->inv; - TRANSFORM_NORMAL( eyenorm, objnorm, inv ); - norm = eyenorm; - } - else { - norm = objnorm; - } - - /* update raster color */ - if (ctx->Light.Enabled) { - /* lighting */ - shade_rastpos( ctx, vObj, norm, - ctx->Current.RasterColor, - ctx->Current.RasterSecondaryColor ); - } - else { - /* use current color */ - COPY_4FV(ctx->Current.RasterColor, - ctx->Current.Attrib[VERT_ATTRIB_COLOR0]); - COPY_4FV(ctx->Current.RasterSecondaryColor, - ctx->Current.Attrib[VERT_ATTRIB_COLOR1]); - } - - /* texture coords */ - { - GLuint u; - for (u = 0; u < ctx->Const.MaxTextureCoordUnits; u++) { - GLfloat tc[4]; - COPY_4V(tc, ctx->Current.Attrib[VERT_ATTRIB_TEX0 + u]); - if (ctx->Texture.Unit[u].TexGenEnabled) { - compute_texgen(ctx, vObj, eye, norm, u, tc); - } - TRANSFORM_POINT(ctx->Current.RasterTexCoords[u], - ctx->TextureMatrixStack[u].Top->m, tc); - } - } - - ctx->Current.RasterPosValid = GL_TRUE; - } - - if (ctx->RenderMode == GL_SELECT) { - _mesa_update_hitflag( ctx, ctx->Current.RasterPos[2] ); - } -} -- 2.30.2