/* $Id: texstate.c,v 1.35 2001/03/03 20:33:28 brianp Exp $ */ /* * Mesa 3-D graphics library * Version: 3.5 * * Copyright (C) 1999-2001 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 * 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. */ #ifdef PC_HEADER #include "all.h" #else #include "glheader.h" #include "colormac.h" #include "context.h" #include "enums.h" #include "extensions.h" #include "macros.h" #include "texobj.h" #include "teximage.h" #include "texstate.h" #include "mtypes.h" #include "math/m_xform.h" #include "math/m_matrix.h" #endif #ifdef SPECIALCAST /* Needed for an Amiga compiler */ #define ENUM_TO_FLOAT(X) ((GLfloat)(GLint)(X)) #define ENUM_TO_DOUBLE(X) ((GLdouble)(GLint)(X)) #else /* all other compilers */ #define ENUM_TO_FLOAT(X) ((GLfloat)(X)) #define ENUM_TO_DOUBLE(X) ((GLdouble)(X)) #endif /**********************************************************************/ /* Texture Environment */ /**********************************************************************/ void _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param ) { GET_CURRENT_CONTEXT(ctx); struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; ASSERT_OUTSIDE_BEGIN_END(ctx); if (target==GL_TEXTURE_ENV) { switch (pname) { case GL_TEXTURE_ENV_MODE: { GLenum mode = (GLenum) (GLint) *param; switch (mode) { case GL_ADD: if (!ctx->Extensions.EXT_texture_env_add) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)"); return; } break; case GL_COMBINE_EXT: if (!ctx->Extensions.EXT_texture_env_combine) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)"); return; } break; case GL_MODULATE: case GL_BLEND: case GL_DECAL: case GL_REPLACE: break; default: _mesa_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); return; } if (texUnit->EnvMode == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->EnvMode = mode; break; } case GL_TEXTURE_ENV_COLOR: { GLfloat tmp[4]; tmp[0] = CLAMP( param[0], 0.0F, 1.0F ); tmp[1] = CLAMP( param[1], 0.0F, 1.0F ); tmp[2] = CLAMP( param[2], 0.0F, 1.0F ); tmp[3] = CLAMP( param[3], 0.0F, 1.0F ); if (TEST_EQ_4V(tmp, texUnit->EnvColor)) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); COPY_4FV(texUnit->EnvColor, tmp); break; } case GL_COMBINE_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { GLenum mode = (GLenum) (GLint) *param; switch (mode) { case GL_REPLACE: case GL_MODULATE: case GL_ADD: case GL_ADD_SIGNED_EXT: case GL_INTERPOLATE_EXT: break; case GL_DOT3_RGB_EXT: case GL_DOT3_RGBA_EXT: if (!ctx->Extensions.EXT_texture_env_dot3) { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)"); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } if (texUnit->CombineModeRGB == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineModeRGB = mode; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } case GL_COMBINE_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { GLenum mode = (GLenum) (GLint) *param; switch (mode) { case GL_REPLACE: case GL_MODULATE: case GL_ADD: case GL_ADD_SIGNED_EXT: case GL_INTERPOLATE_EXT: if (texUnit->CombineModeA == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineModeA = mode; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } break; case GL_SOURCE0_RGB_EXT: case GL_SOURCE1_RGB_EXT: case GL_SOURCE2_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { GLenum source = (GLenum) (GLint) *param; GLuint s = pname - GL_SOURCE0_RGB_EXT; switch (source) { case GL_TEXTURE: case GL_CONSTANT_EXT: case GL_PRIMARY_COLOR_EXT: case GL_PREVIOUS_EXT: if (texUnit->CombineSourceRGB[s] == source) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineSourceRGB[s] = source; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } break; case GL_SOURCE0_ALPHA_EXT: case GL_SOURCE1_ALPHA_EXT: case GL_SOURCE2_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { GLenum source = (GLenum) (GLint) *param; GLuint s = pname - GL_SOURCE0_ALPHA_EXT; switch (source) { case GL_TEXTURE: case GL_CONSTANT_EXT: case GL_PRIMARY_COLOR_EXT: case GL_PREVIOUS_EXT: if (texUnit->CombineSourceA[s] == source) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineSourceA[s] = source; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } break; case GL_OPERAND0_RGB_EXT: case GL_OPERAND1_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { GLenum operand = (GLenum) (GLint) *param; GLuint s = pname - GL_OPERAND0_RGB_EXT; switch (operand) { case GL_SRC_COLOR: case GL_ONE_MINUS_SRC_COLOR: case GL_SRC_ALPHA: case GL_ONE_MINUS_SRC_ALPHA: if (texUnit->CombineOperandRGB[s] == operand) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineOperandRGB[s] = operand; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } break; case GL_OPERAND0_ALPHA_EXT: case GL_OPERAND1_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { GLenum operand = (GLenum) (GLint) *param; switch (operand) { case GL_SRC_ALPHA: case GL_ONE_MINUS_SRC_ALPHA: if (texUnit->CombineOperandA[pname-GL_OPERAND0_ALPHA_EXT] == operand) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineOperandA[pname-GL_OPERAND0_ALPHA_EXT] = operand; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } break; case GL_OPERAND2_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { GLenum operand = (GLenum) (GLint) *param; switch (operand) { case GL_SRC_ALPHA: if (texUnit->CombineOperandRGB[2] == operand) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineOperandRGB[2] = operand; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } break; case GL_OPERAND2_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { GLenum operand = (GLenum) (GLint) *param; switch (operand) { case GL_SRC_ALPHA: if (texUnit->CombineOperandA[2] == operand) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineOperandA[2] = operand; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } break; case GL_RGB_SCALE_EXT: if (ctx->Extensions.EXT_texture_env_combine) { GLuint newshift; if (*param == 1.0) { newshift = 0; } else if (*param == 2.0) { newshift = 1; } else if (*param == 4.0) { newshift = 2; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); return; } if (texUnit->CombineScaleShiftRGB == newshift) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineScaleShiftRGB = newshift; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } break; case GL_ALPHA_SCALE: if (ctx->Extensions.EXT_texture_env_combine) { GLuint newshift; if (*param == 1.0) { newshift = 0; } else if (*param == 2.0) { newshift = 1; } else if (*param == 4.0) { newshift = 2; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); return; } if (texUnit->CombineScaleShiftA == newshift) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineScaleShiftA = newshift; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); return; } } else if (target==GL_TEXTURE_FILTER_CONTROL_EXT) { if (!ctx->Extensions.EXT_texture_lod_bias) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); return; } switch (pname) { case GL_TEXTURE_LOD_BIAS_EXT: if (texUnit->LodBias == param[0]) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->LodBias = param[0]; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); return; } } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(target)" ); return; } if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE)) fprintf(stderr, "glTexEnv %s %s %.1f(%s) ...\n", _mesa_lookup_enum_by_nr(target), _mesa_lookup_enum_by_nr(pname), *param, _mesa_lookup_enum_by_nr((GLenum) (GLint) *param)); /* Tell device driver about the new texture environment */ if (ctx->Driver.TexEnv) { (*ctx->Driver.TexEnv)( ctx, target, pname, param ); } } void _mesa_TexEnvf( GLenum target, GLenum pname, GLfloat param ) { _mesa_TexEnvfv( target, pname, ¶m ); } void _mesa_TexEnvi( GLenum target, GLenum pname, GLint param ) { GLfloat p[4]; p[0] = (GLfloat) param; p[1] = p[2] = p[3] = 0.0; _mesa_TexEnvfv( target, pname, p ); } void _mesa_TexEnviv( GLenum target, GLenum pname, const GLint *param ) { GLfloat p[4]; p[0] = INT_TO_FLOAT( param[0] ); p[1] = INT_TO_FLOAT( param[1] ); p[2] = INT_TO_FLOAT( param[2] ); p[3] = INT_TO_FLOAT( param[3] ); _mesa_TexEnvfv( target, pname, p ); } void _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; ASSERT_OUTSIDE_BEGIN_END(ctx); if (target!=GL_TEXTURE_ENV) { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(target)" ); return; } switch (pname) { case GL_TEXTURE_ENV_MODE: *params = ENUM_TO_FLOAT(texUnit->EnvMode); break; case GL_TEXTURE_ENV_COLOR: COPY_4FV( params, texUnit->EnvColor ); break; case GL_RGB_SCALE_EXT: if (ctx->Extensions.EXT_texture_env_combine) { if (texUnit->CombineScaleShiftRGB == 0) *params = 1.0; else if (texUnit->CombineScaleShiftRGB == 1) *params = 2.0; else *params = 4.0; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); return; } break; case GL_ALPHA_SCALE: if (ctx->Extensions.EXT_texture_env_combine) { if (texUnit->CombineScaleShiftA == 0) *params = 1.0; else if (texUnit->CombineScaleShiftA == 1) *params = 2.0; else *params = 4.0; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)" ); } } void _mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params ) { GET_CURRENT_CONTEXT(ctx); const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; ASSERT_OUTSIDE_BEGIN_END(ctx); if (target != GL_TEXTURE_ENV) { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(target)" ); return; } switch (pname) { case GL_TEXTURE_ENV_MODE: *params = (GLint) texUnit->EnvMode; break; case GL_TEXTURE_ENV_COLOR: params[0] = FLOAT_TO_INT( texUnit->EnvColor[0] ); params[1] = FLOAT_TO_INT( texUnit->EnvColor[1] ); params[2] = FLOAT_TO_INT( texUnit->EnvColor[2] ); params[3] = FLOAT_TO_INT( texUnit->EnvColor[3] ); break; case GL_COMBINE_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineModeRGB; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_COMBINE_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineModeA; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE0_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineSourceRGB[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE1_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineSourceRGB[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE2_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineSourceRGB[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE0_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineSourceA[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE1_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineSourceA[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE2_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineSourceA[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND0_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineOperandRGB[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND1_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineOperandRGB[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND2_RGB_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineOperandRGB[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND0_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineOperandA[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND1_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineOperandA[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND2_ALPHA_EXT: if (ctx->Extensions.EXT_texture_env_combine) { *params = (GLint) texUnit->CombineOperandA[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)" ); } } /**********************************************************************/ /* Texture Parameters */ /**********************************************************************/ void _mesa_TexParameterf( GLenum target, GLenum pname, GLfloat param ) { _mesa_TexParameterfv(target, pname, ¶m); } void _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; GLenum eparam = (GLenum) (GLint) params[0]; struct gl_texture_object *texObj; ASSERT_OUTSIDE_BEGIN_END(ctx); if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE)) fprintf(stderr, "texPARAM %s %s %d...\n", _mesa_lookup_enum_by_nr(target), _mesa_lookup_enum_by_nr(pname), eparam); switch (target) { case GL_TEXTURE_1D: texObj = texUnit->Current1D; break; case GL_TEXTURE_2D: texObj = texUnit->Current2D; break; case GL_TEXTURE_3D_EXT: texObj = texUnit->Current3D; break; case GL_TEXTURE_CUBE_MAP_ARB: if (ctx->Extensions.ARB_texture_cube_map) { texObj = texUnit->CurrentCubeMap; break; } /* fallthrough */ default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" ); return; } switch (pname) { case GL_TEXTURE_MIN_FILTER: /* A small optimization */ if (texObj->MinFilter == eparam) return; if (eparam==GL_NEAREST || eparam==GL_LINEAR || eparam==GL_NEAREST_MIPMAP_NEAREST || eparam==GL_LINEAR_MIPMAP_NEAREST || eparam==GL_NEAREST_MIPMAP_LINEAR || eparam==GL_LINEAR_MIPMAP_LINEAR) { texObj->MinFilter = eparam; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } break; case GL_TEXTURE_MAG_FILTER: /* A small optimization */ if (texObj->MagFilter == eparam) return; if (eparam==GL_NEAREST || eparam==GL_LINEAR) { texObj->MagFilter = eparam; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } break; case GL_TEXTURE_WRAP_S: if (texObj->WrapS == eparam) return; if (eparam==GL_CLAMP || eparam==GL_REPEAT || eparam==GL_CLAMP_TO_EDGE) { texObj->WrapS = eparam; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } break; case GL_TEXTURE_WRAP_T: if (texObj->WrapT == eparam) return; if (eparam==GL_CLAMP || eparam==GL_REPEAT || eparam==GL_CLAMP_TO_EDGE) { texObj->WrapT = eparam; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } break; case GL_TEXTURE_WRAP_R_EXT: if (texObj->WrapR == eparam) return; if (eparam==GL_CLAMP || eparam==GL_REPEAT || eparam==GL_CLAMP_TO_EDGE) { texObj->WrapR = eparam; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); } break; case GL_TEXTURE_BORDER_COLOR: UNCLAMPED_FLOAT_TO_CHAN(texObj->BorderColor[0], params[0]); UNCLAMPED_FLOAT_TO_CHAN(texObj->BorderColor[1], params[1]); UNCLAMPED_FLOAT_TO_CHAN(texObj->BorderColor[2], params[2]); UNCLAMPED_FLOAT_TO_CHAN(texObj->BorderColor[3], params[3]); break; case GL_TEXTURE_MIN_LOD: texObj->MinLod = params[0]; break; case GL_TEXTURE_MAX_LOD: texObj->MaxLod = params[0]; break; case GL_TEXTURE_BASE_LEVEL: if (params[0] < 0.0) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } texObj->BaseLevel = (GLint) params[0]; break; case GL_TEXTURE_MAX_LEVEL: if (params[0] < 0.0) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } texObj->MaxLevel = (GLint) params[0]; break; case GL_TEXTURE_PRIORITY: /* (keithh@netcomuk.co.uk) */ texObj->Priority = CLAMP( params[0], 0.0F, 1.0F ); break; case GL_TEXTURE_COMPARE_SGIX: if (ctx->Extensions.SGIX_shadow) { texObj->CompareFlag = params[0] ? GL_TRUE : GL_FALSE; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname)"); return; } break; case GL_TEXTURE_COMPARE_OPERATOR_SGIX: if (ctx->Extensions.SGIX_shadow) { GLenum op = (GLenum) params[0]; if (op == GL_TEXTURE_LEQUAL_R_SGIX || op == GL_TEXTURE_GEQUAL_R_SGIX) { texObj->CompareOperator = op; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param)"); } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname)"); return; } break; case GL_SHADOW_AMBIENT_SGIX: if (ctx->Extensions.SGIX_shadow_ambient) { UNCLAMPED_FLOAT_TO_CHAN(texObj->ShadowAmbient, params[0]); } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname)"); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(pname)" ); return; } ctx->NewState |= _NEW_TEXTURE; texObj->Complete = GL_FALSE; if (ctx->Driver.TexParameter) { (*ctx->Driver.TexParameter)( ctx, target, texObj, pname, params ); } } void _mesa_TexParameteri( GLenum target, GLenum pname, const GLint param ) { GLfloat fparam[4]; fparam[0] = (GLfloat) param; fparam[1] = fparam[2] = fparam[3] = 0.0; _mesa_TexParameterfv(target, pname, fparam); } void _mesa_TexParameteriv( GLenum target, GLenum pname, const GLint *params ) { GLfloat fparam[4]; fparam[0] = (GLfloat) params[0]; fparam[1] = fparam[2] = fparam[3] = 0.0; _mesa_TexParameterfv(target, pname, fparam); } void _mesa_GetTexLevelParameterfv( GLenum target, GLint level, GLenum pname, GLfloat *params ) { GLint iparam; _mesa_GetTexLevelParameteriv( target, level, pname, &iparam ); *params = (GLfloat) iparam; } static GLuint tex_image_dimensions(GLcontext *ctx, GLenum target) { switch (target) { case GL_TEXTURE_1D: case GL_PROXY_TEXTURE_1D: return 1; case GL_TEXTURE_2D: case GL_PROXY_TEXTURE_2D: return 2; case GL_TEXTURE_3D: case GL_PROXY_TEXTURE_3D: return 3; case GL_TEXTURE_CUBE_MAP_ARB: case GL_PROXY_TEXTURE_CUBE_MAP_ARB: return ctx->Extensions.ARB_texture_cube_map ? 2 : 0; default: _mesa_problem(ctx, "bad target in _mesa_tex_target_dimensions()"); return 0; } } void _mesa_GetTexLevelParameteriv( GLenum target, GLint level, GLenum pname, GLint *params ) { GET_CURRENT_CONTEXT(ctx); const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; const struct gl_texture_image *img = NULL; GLuint dimensions; GLboolean isProxy; ASSERT_OUTSIDE_BEGIN_END(ctx); if (level < 0 || level >= ctx->Const.MaxTextureLevels) { _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); return; } dimensions = tex_image_dimensions(ctx, target); /* 1, 2 or 3 */ if (dimensions == 0) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(target)"); return; } img = _mesa_select_tex_image(ctx, texUnit, target, level); if (!img) { if (pname == GL_TEXTURE_COMPONENTS) *params = 1; else *params = 0; return; } isProxy = (target == GL_PROXY_TEXTURE_1D) || (target == GL_PROXY_TEXTURE_2D) || (target == GL_PROXY_TEXTURE_3D) || (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB); switch (pname) { case GL_TEXTURE_WIDTH: *params = img->Width; return; case GL_TEXTURE_HEIGHT: *params = img->Height; return; case GL_TEXTURE_DEPTH: *params = img->Depth; return; case GL_TEXTURE_COMPONENTS: *params = img->IntFormat; return; case GL_TEXTURE_BORDER: *params = img->Border; return; case GL_TEXTURE_RED_SIZE: *params = img->RedBits; return; case GL_TEXTURE_GREEN_SIZE: *params = img->GreenBits; return; case GL_TEXTURE_BLUE_SIZE: *params = img->BlueBits; return; case GL_TEXTURE_ALPHA_SIZE: *params = img->AlphaBits; return; case GL_TEXTURE_INTENSITY_SIZE: *params = img->IntensityBits; return; case GL_TEXTURE_LUMINANCE_SIZE: *params = img->LuminanceBits; return; case GL_TEXTURE_INDEX_SIZE_EXT: *params = img->IndexBits; return; case GL_DEPTH_BITS: /* XXX this isn't in the GL_SGIX_depth_texture spec * but seems appropriate. */ if (ctx->Extensions.SGIX_depth_texture) *params = img->DepthBits; else _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); return; /* GL_ARB_texture_compression */ case GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB: if (ctx->Extensions.ARB_texture_compression) { if (img->IsCompressed && !isProxy) *params = img->CompressedSize; else _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexLevelParameter[if]v(pname)"); } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); } return; case GL_TEXTURE_COMPRESSED_ARB: if (ctx->Extensions.ARB_texture_compression) { *params = (GLint) img->IsCompressed; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); } return; default: _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); } } void _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; struct gl_texture_object *obj; ASSERT_OUTSIDE_BEGIN_END(ctx); obj = _mesa_select_tex_object(ctx, texUnit, target); if (!obj) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(target)"); return; } switch (pname) { case GL_TEXTURE_MAG_FILTER: *params = ENUM_TO_FLOAT(obj->MagFilter); break; case GL_TEXTURE_MIN_FILTER: *params = ENUM_TO_FLOAT(obj->MinFilter); break; case GL_TEXTURE_WRAP_S: *params = ENUM_TO_FLOAT(obj->WrapS); break; case GL_TEXTURE_WRAP_T: *params = ENUM_TO_FLOAT(obj->WrapT); break; case GL_TEXTURE_WRAP_R_EXT: *params = ENUM_TO_FLOAT(obj->WrapR); break; case GL_TEXTURE_BORDER_COLOR: params[0] = obj->BorderColor[0] / CHAN_MAXF; params[1] = obj->BorderColor[1] / CHAN_MAXF; params[2] = obj->BorderColor[2] / CHAN_MAXF; params[3] = obj->BorderColor[3] / CHAN_MAXF; break; case GL_TEXTURE_RESIDENT: { GLboolean resident; if (ctx->Driver.IsTextureResident) resident = ctx->Driver.IsTextureResident(ctx, obj); else resident = GL_TRUE; *params = ENUM_TO_FLOAT(resident); } break; case GL_TEXTURE_PRIORITY: *params = obj->Priority; break; case GL_TEXTURE_MIN_LOD: *params = obj->MinLod; break; case GL_TEXTURE_MAX_LOD: *params = obj->MaxLod; break; case GL_TEXTURE_BASE_LEVEL: *params = (GLfloat) obj->BaseLevel; break; case GL_TEXTURE_MAX_LEVEL: *params = (GLfloat) obj->MaxLevel; break; case GL_TEXTURE_COMPARE_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLfloat) obj->CompareFlag; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" ); return; } break; case GL_TEXTURE_COMPARE_OPERATOR_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLfloat) obj->CompareOperator; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" ); return; } break; case GL_SHADOW_AMBIENT_SGIX: if (ctx->Extensions.SGIX_shadow_ambient) { *params = CHAN_TO_FLOAT(obj->ShadowAmbient); } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)"); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" ); } } void _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params ) { GET_CURRENT_CONTEXT(ctx); struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; struct gl_texture_object *obj; ASSERT_OUTSIDE_BEGIN_END(ctx); obj = _mesa_select_tex_object(ctx, texUnit, target); if (!obj) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(target)"); return; } switch (pname) { case GL_TEXTURE_MAG_FILTER: *params = (GLint) obj->MagFilter; break; case GL_TEXTURE_MIN_FILTER: *params = (GLint) obj->MinFilter; break; case GL_TEXTURE_WRAP_S: *params = (GLint) obj->WrapS; break; case GL_TEXTURE_WRAP_T: *params = (GLint) obj->WrapT; break; case GL_TEXTURE_WRAP_R_EXT: *params = (GLint) obj->WrapR; break; case GL_TEXTURE_BORDER_COLOR: { GLfloat color[4]; color[0] = obj->BorderColor[0] / CHAN_MAXF; color[1] = obj->BorderColor[1] / CHAN_MAXF; color[2] = obj->BorderColor[2] / CHAN_MAXF; color[3] = obj->BorderColor[3] / CHAN_MAXF; params[0] = FLOAT_TO_INT( color[0] ); params[1] = FLOAT_TO_INT( color[1] ); params[2] = FLOAT_TO_INT( color[2] ); params[3] = FLOAT_TO_INT( color[3] ); } break; case GL_TEXTURE_RESIDENT: { GLboolean resident; if (ctx->Driver.IsTextureResident) resident = ctx->Driver.IsTextureResident(ctx, obj); else resident = GL_TRUE; *params = (GLint) resident; } break; case GL_TEXTURE_PRIORITY: *params = (GLint) obj->Priority; break; case GL_TEXTURE_MIN_LOD: *params = (GLint) obj->MinLod; break; case GL_TEXTURE_MAX_LOD: *params = (GLint) obj->MaxLod; break; case GL_TEXTURE_BASE_LEVEL: *params = obj->BaseLevel; break; case GL_TEXTURE_MAX_LEVEL: *params = obj->MaxLevel; break; case GL_TEXTURE_COMPARE_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLint) obj->CompareFlag; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)" ); return; } break; case GL_TEXTURE_COMPARE_OPERATOR_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLint) obj->CompareOperator; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)" ); return; } break; case GL_SHADOW_AMBIENT_SGIX: if (ctx->Extensions.SGIX_shadow_ambient) { /* XXX range? */ *params = CHAN_TO_FLOAT(obj->ShadowAmbient); } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)"); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)" ); } } /**********************************************************************/ /* Texture Coord Generation */ /**********************************************************************/ void _mesa_TexGenfv( GLenum coord, GLenum pname, const GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); GLuint tUnit = ctx->Texture.CurrentTransformUnit; struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit]; ASSERT_OUTSIDE_BEGIN_END(ctx); if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE)) fprintf(stderr, "texGEN %s %s %x...\n", _mesa_lookup_enum_by_nr(coord), _mesa_lookup_enum_by_nr(pname), *(int *)params); switch (coord) { case GL_S: if (pname==GL_TEXTURE_GEN_MODE) { GLenum mode = (GLenum) (GLint) *params; GLuint bits; switch (mode) { case GL_OBJECT_LINEAR: bits = TEXGEN_OBJ_LINEAR; break; case GL_EYE_LINEAR: bits = TEXGEN_EYE_LINEAR; break; case GL_REFLECTION_MAP_NV: bits = TEXGEN_REFLECTION_MAP_NV; break; case GL_NORMAL_MAP_NV: bits = TEXGEN_NORMAL_MAP_NV; break; case GL_SPHERE_MAP: bits = TEXGEN_SPHERE_MAP; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" ); return; } if (texUnit->GenModeS == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->GenModeS = mode; texUnit->_GenBitS = bits; } else if (pname==GL_OBJECT_PLANE) { if (TEST_EQ_4V(texUnit->ObjectPlaneS, params)) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->ObjectPlaneS[0] = params[0]; texUnit->ObjectPlaneS[1] = params[1]; texUnit->ObjectPlaneS[2] = params[2]; texUnit->ObjectPlaneS[3] = params[3]; } else if (pname==GL_EYE_PLANE) { GLfloat tmp[4]; /* Transform plane equation by the inverse modelview matrix */ if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) { _math_matrix_analyse( &ctx->ModelView ); } _mesa_transform_vector( tmp, params, ctx->ModelView.inv ); if (TEST_EQ_4V(texUnit->EyePlaneS, tmp)) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); COPY_4FV(texUnit->EyePlaneS, tmp); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" ); return; } break; case GL_T: if (pname==GL_TEXTURE_GEN_MODE) { GLenum mode = (GLenum) (GLint) *params; GLuint bitt; switch (mode) { case GL_OBJECT_LINEAR: bitt = TEXGEN_OBJ_LINEAR; break; case GL_EYE_LINEAR: bitt = TEXGEN_EYE_LINEAR; break; case GL_REFLECTION_MAP_NV: bitt = TEXGEN_REFLECTION_MAP_NV; break; case GL_NORMAL_MAP_NV: bitt = TEXGEN_NORMAL_MAP_NV; break; case GL_SPHERE_MAP: bitt = TEXGEN_SPHERE_MAP; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" ); return; } if (texUnit->GenModeT == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->GenModeT = mode; texUnit->_GenBitT = bitt; } else if (pname==GL_OBJECT_PLANE) { if (TEST_EQ_4V(texUnit->ObjectPlaneT, params)) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->ObjectPlaneT[0] = params[0]; texUnit->ObjectPlaneT[1] = params[1]; texUnit->ObjectPlaneT[2] = params[2]; texUnit->ObjectPlaneT[3] = params[3]; } else if (pname==GL_EYE_PLANE) { GLfloat tmp[4]; /* Transform plane equation by the inverse modelview matrix */ if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) { _math_matrix_analyse( &ctx->ModelView ); } _mesa_transform_vector( tmp, params, ctx->ModelView.inv ); if (TEST_EQ_4V(texUnit->EyePlaneT, tmp)) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); COPY_4FV(texUnit->EyePlaneT, tmp); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" ); return; } break; case GL_R: if (pname==GL_TEXTURE_GEN_MODE) { GLenum mode = (GLenum) (GLint) *params; GLuint bitr; switch (mode) { case GL_OBJECT_LINEAR: bitr = TEXGEN_OBJ_LINEAR; break; case GL_REFLECTION_MAP_NV: bitr = TEXGEN_REFLECTION_MAP_NV; break; case GL_NORMAL_MAP_NV: bitr = TEXGEN_NORMAL_MAP_NV; break; case GL_EYE_LINEAR: bitr = TEXGEN_EYE_LINEAR; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" ); return; } if (texUnit->GenModeR == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->GenModeR = mode; texUnit->_GenBitR = bitr; } else if (pname==GL_OBJECT_PLANE) { if (TEST_EQ_4V(texUnit->ObjectPlaneR, params)) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->ObjectPlaneR[0] = params[0]; texUnit->ObjectPlaneR[1] = params[1]; texUnit->ObjectPlaneR[2] = params[2]; texUnit->ObjectPlaneR[3] = params[3]; } else if (pname==GL_EYE_PLANE) { GLfloat tmp[4]; /* Transform plane equation by the inverse modelview matrix */ if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) { _math_matrix_analyse( &ctx->ModelView ); } _mesa_transform_vector( tmp, params, ctx->ModelView.inv ); if (TEST_EQ_4V(texUnit->EyePlaneR, tmp)) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); COPY_4FV(texUnit->EyePlaneR, tmp); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" ); return; } break; case GL_Q: if (pname==GL_TEXTURE_GEN_MODE) { GLenum mode = (GLenum) (GLint) *params; GLuint bitq; switch (mode) { case GL_OBJECT_LINEAR: bitq = TEXGEN_OBJ_LINEAR; break; case GL_EYE_LINEAR: bitq = TEXGEN_EYE_LINEAR; break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" ); return; } if (texUnit->GenModeQ == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->GenModeQ = mode; texUnit->_GenBitQ = bitq; } else if (pname==GL_OBJECT_PLANE) { if (TEST_EQ_4V(texUnit->ObjectPlaneQ, params)) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->ObjectPlaneQ[0] = params[0]; texUnit->ObjectPlaneQ[1] = params[1]; texUnit->ObjectPlaneQ[2] = params[2]; texUnit->ObjectPlaneQ[3] = params[3]; } else if (pname==GL_EYE_PLANE) { GLfloat tmp[4]; /* Transform plane equation by the inverse modelview matrix */ if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) { _math_matrix_analyse( &ctx->ModelView ); } _mesa_transform_vector( tmp, params, ctx->ModelView.inv ); if (TEST_EQ_4V(texUnit->EyePlaneQ, tmp)) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); COPY_4FV(texUnit->EyePlaneQ, tmp); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" ); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(coord)" ); return; } if (ctx->Driver.TexGen) ctx->Driver.TexGen( ctx, coord, pname, params ); } void _mesa_TexGeniv(GLenum coord, GLenum pname, const GLint *params ) { GLfloat p[4]; p[0] = params[0]; p[1] = params[1]; p[2] = params[2]; p[3] = params[3]; _mesa_TexGenfv(coord, pname, p); } void _mesa_TexGend(GLenum coord, GLenum pname, GLdouble param ) { GLfloat p = (GLfloat) param; _mesa_TexGenfv( coord, pname, &p ); } void _mesa_TexGendv(GLenum coord, GLenum pname, const GLdouble *params ) { GLfloat p[4]; p[0] = params[0]; p[1] = params[1]; p[2] = params[2]; p[3] = params[3]; _mesa_TexGenfv( coord, pname, p ); } void _mesa_TexGenf( GLenum coord, GLenum pname, GLfloat param ) { _mesa_TexGenfv(coord, pname, ¶m); } void _mesa_TexGeni( GLenum coord, GLenum pname, GLint param ) { _mesa_TexGeniv( coord, pname, ¶m ); } void _mesa_GetTexGendv( GLenum coord, GLenum pname, GLdouble *params ) { GET_CURRENT_CONTEXT(ctx); GLuint tUnit = ctx->Texture.CurrentTransformUnit; struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit]; ASSERT_OUTSIDE_BEGIN_END(ctx); switch (coord) { case GL_S: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = ENUM_TO_DOUBLE(texUnit->GenModeS); } else if (pname==GL_OBJECT_PLANE) { COPY_4V( params, texUnit->ObjectPlaneS ); } else if (pname==GL_EYE_PLANE) { COPY_4V( params, texUnit->EyePlaneS ); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" ); return; } break; case GL_T: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = ENUM_TO_DOUBLE(texUnit->GenModeT); } else if (pname==GL_OBJECT_PLANE) { COPY_4V( params, texUnit->ObjectPlaneT ); } else if (pname==GL_EYE_PLANE) { COPY_4V( params, texUnit->EyePlaneT ); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" ); return; } break; case GL_R: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = ENUM_TO_DOUBLE(texUnit->GenModeR); } else if (pname==GL_OBJECT_PLANE) { COPY_4V( params, texUnit->ObjectPlaneR ); } else if (pname==GL_EYE_PLANE) { COPY_4V( params, texUnit->EyePlaneR ); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" ); return; } break; case GL_Q: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = ENUM_TO_DOUBLE(texUnit->GenModeQ); } else if (pname==GL_OBJECT_PLANE) { COPY_4V( params, texUnit->ObjectPlaneQ ); } else if (pname==GL_EYE_PLANE) { COPY_4V( params, texUnit->EyePlaneQ ); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" ); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(coord)" ); return; } } void _mesa_GetTexGenfv( GLenum coord, GLenum pname, GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); GLuint tUnit = ctx->Texture.CurrentTransformUnit; struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit]; ASSERT_OUTSIDE_BEGIN_END(ctx); switch (coord) { case GL_S: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = ENUM_TO_FLOAT(texUnit->GenModeS); } else if (pname==GL_OBJECT_PLANE) { COPY_4V( params, texUnit->ObjectPlaneS ); } else if (pname==GL_EYE_PLANE) { COPY_4V( params, texUnit->EyePlaneS ); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" ); return; } break; case GL_T: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = ENUM_TO_FLOAT(texUnit->GenModeT); } else if (pname==GL_OBJECT_PLANE) { COPY_4V( params, texUnit->ObjectPlaneT ); } else if (pname==GL_EYE_PLANE) { COPY_4V( params, texUnit->EyePlaneT ); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" ); return; } break; case GL_R: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = ENUM_TO_FLOAT(texUnit->GenModeR); } else if (pname==GL_OBJECT_PLANE) { COPY_4V( params, texUnit->ObjectPlaneR ); } else if (pname==GL_EYE_PLANE) { COPY_4V( params, texUnit->EyePlaneR ); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" ); return; } break; case GL_Q: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = ENUM_TO_FLOAT(texUnit->GenModeQ); } else if (pname==GL_OBJECT_PLANE) { COPY_4V( params, texUnit->ObjectPlaneQ ); } else if (pname==GL_EYE_PLANE) { COPY_4V( params, texUnit->EyePlaneQ ); } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" ); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(coord)" ); return; } } void _mesa_GetTexGeniv( GLenum coord, GLenum pname, GLint *params ) { GET_CURRENT_CONTEXT(ctx); GLuint tUnit = ctx->Texture.CurrentTransformUnit; struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit]; ASSERT_OUTSIDE_BEGIN_END(ctx); switch (coord) { case GL_S: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = texUnit->GenModeS; } else if (pname==GL_OBJECT_PLANE) { params[0] = (GLint) texUnit->ObjectPlaneS[0]; params[1] = (GLint) texUnit->ObjectPlaneS[1]; params[2] = (GLint) texUnit->ObjectPlaneS[2]; params[3] = (GLint) texUnit->ObjectPlaneS[3]; } else if (pname==GL_EYE_PLANE) { params[0] = (GLint) texUnit->EyePlaneS[0]; params[1] = (GLint) texUnit->EyePlaneS[1]; params[2] = (GLint) texUnit->EyePlaneS[2]; params[3] = (GLint) texUnit->EyePlaneS[3]; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" ); return; } break; case GL_T: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = texUnit->GenModeT; } else if (pname==GL_OBJECT_PLANE) { params[0] = (GLint) texUnit->ObjectPlaneT[0]; params[1] = (GLint) texUnit->ObjectPlaneT[1]; params[2] = (GLint) texUnit->ObjectPlaneT[2]; params[3] = (GLint) texUnit->ObjectPlaneT[3]; } else if (pname==GL_EYE_PLANE) { params[0] = (GLint) texUnit->EyePlaneT[0]; params[1] = (GLint) texUnit->EyePlaneT[1]; params[2] = (GLint) texUnit->EyePlaneT[2]; params[3] = (GLint) texUnit->EyePlaneT[3]; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" ); return; } break; case GL_R: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = texUnit->GenModeR; } else if (pname==GL_OBJECT_PLANE) { params[0] = (GLint) texUnit->ObjectPlaneR[0]; params[1] = (GLint) texUnit->ObjectPlaneR[1]; params[2] = (GLint) texUnit->ObjectPlaneR[2]; params[3] = (GLint) texUnit->ObjectPlaneR[3]; } else if (pname==GL_EYE_PLANE) { params[0] = (GLint) texUnit->EyePlaneR[0]; params[1] = (GLint) texUnit->EyePlaneR[1]; params[2] = (GLint) texUnit->EyePlaneR[2]; params[3] = (GLint) texUnit->EyePlaneR[3]; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" ); return; } break; case GL_Q: if (pname==GL_TEXTURE_GEN_MODE) { params[0] = texUnit->GenModeQ; } else if (pname==GL_OBJECT_PLANE) { params[0] = (GLint) texUnit->ObjectPlaneQ[0]; params[1] = (GLint) texUnit->ObjectPlaneQ[1]; params[2] = (GLint) texUnit->ObjectPlaneQ[2]; params[3] = (GLint) texUnit->ObjectPlaneQ[3]; } else if (pname==GL_EYE_PLANE) { params[0] = (GLint) texUnit->EyePlaneQ[0]; params[1] = (GLint) texUnit->EyePlaneQ[1]; params[2] = (GLint) texUnit->EyePlaneQ[2]; params[3] = (GLint) texUnit->EyePlaneQ[3]; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" ); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(coord)" ); return; } } /* GL_ARB_multitexture */ void _mesa_ActiveTextureARB( GLenum target ) { GET_CURRENT_CONTEXT(ctx); GLuint texUnit = target - GL_TEXTURE0_ARB; ASSERT_OUTSIDE_BEGIN_END(ctx); if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) fprintf(stderr, "glActiveTexture %s\n", _mesa_lookup_enum_by_nr(target)); if (texUnit > ctx->Const.MaxTextureUnits) { _mesa_error(ctx, GL_INVALID_OPERATION, "glActiveTextureARB(target)"); return; } FLUSH_VERTICES(ctx, _NEW_TEXTURE); ctx->Texture.CurrentUnit = texUnit; ctx->Texture.CurrentTransformUnit = texUnit; if (ctx->Driver.ActiveTexture) { (*ctx->Driver.ActiveTexture)( ctx, (GLuint) texUnit ); } } /* GL_ARB_multitexture */ void _mesa_ClientActiveTextureARB( GLenum target ) { GET_CURRENT_CONTEXT(ctx); GLuint texUnit = target - GL_TEXTURE0_ARB; ASSERT_OUTSIDE_BEGIN_END(ctx); if (texUnit > ctx->Const.MaxTextureUnits) { _mesa_error(ctx, GL_INVALID_OPERATION, "glActiveTextureARB(target)"); return; } FLUSH_VERTICES(ctx, _NEW_ARRAY); ctx->Array.ActiveTexture = texUnit; }