/* * Mesa 3-D graphics library * Version: 5.1 * * Copyright (C) 1999-2003 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. */ #include "glheader.h" #include "colormac.h" #include "colortab.h" #include "context.h" #include "enums.h" #include "extensions.h" #include "macros.h" #include "nvfragprog.h" #include "texobj.h" #include "teximage.h" #include "texstate.h" #include "mtypes.h" #include "math/m_xform.h" #include "math/m_matrix.h" #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 void _mesa_copy_texture_state( const GLcontext *src, GLcontext *dst ) { GLuint i; ASSERT(src); ASSERT(dst); dst->Texture.CurrentUnit = src->Texture.CurrentUnit; dst->Texture._GenFlags = src->Texture._GenFlags; dst->Texture._TexGenEnabled = src->Texture._TexGenEnabled; dst->Texture._TexMatEnabled = src->Texture._TexMatEnabled; dst->Texture.SharedPalette = src->Texture.SharedPalette; /* per-unit state */ for (i = 0; i < src->Const.MaxTextureUnits; i++) { dst->Texture.Unit[i].Enabled = src->Texture.Unit[i].Enabled; dst->Texture.Unit[i].EnvMode = src->Texture.Unit[i].EnvMode; COPY_4V(dst->Texture.Unit[i].EnvColor, src->Texture.Unit[i].EnvColor); dst->Texture.Unit[i].TexGenEnabled = src->Texture.Unit[i].TexGenEnabled; dst->Texture.Unit[i].GenModeS = src->Texture.Unit[i].GenModeS; dst->Texture.Unit[i].GenModeT = src->Texture.Unit[i].GenModeT; dst->Texture.Unit[i].GenModeR = src->Texture.Unit[i].GenModeR; dst->Texture.Unit[i].GenModeQ = src->Texture.Unit[i].GenModeQ; dst->Texture.Unit[i]._GenBitS = src->Texture.Unit[i]._GenBitS; dst->Texture.Unit[i]._GenBitT = src->Texture.Unit[i]._GenBitT; dst->Texture.Unit[i]._GenBitR = src->Texture.Unit[i]._GenBitR; dst->Texture.Unit[i]._GenBitQ = src->Texture.Unit[i]._GenBitQ; dst->Texture.Unit[i]._GenFlags = src->Texture.Unit[i]._GenFlags; COPY_4V(dst->Texture.Unit[i].ObjectPlaneS, src->Texture.Unit[i].ObjectPlaneS); COPY_4V(dst->Texture.Unit[i].ObjectPlaneT, src->Texture.Unit[i].ObjectPlaneT); COPY_4V(dst->Texture.Unit[i].ObjectPlaneR, src->Texture.Unit[i].ObjectPlaneR); COPY_4V(dst->Texture.Unit[i].ObjectPlaneQ, src->Texture.Unit[i].ObjectPlaneQ); COPY_4V(dst->Texture.Unit[i].EyePlaneS, src->Texture.Unit[i].EyePlaneS); COPY_4V(dst->Texture.Unit[i].EyePlaneT, src->Texture.Unit[i].EyePlaneT); COPY_4V(dst->Texture.Unit[i].EyePlaneR, src->Texture.Unit[i].EyePlaneR); COPY_4V(dst->Texture.Unit[i].EyePlaneQ, src->Texture.Unit[i].EyePlaneQ); dst->Texture.Unit[i].LodBias = src->Texture.Unit[i].LodBias; /* GL_EXT_texture_env_combine */ dst->Texture.Unit[i].CombineModeRGB = src->Texture.Unit[i].CombineModeRGB; dst->Texture.Unit[i].CombineModeA = src->Texture.Unit[i].CombineModeA; COPY_3V(dst->Texture.Unit[i].CombineSourceRGB, src->Texture.Unit[i].CombineSourceRGB); COPY_3V(dst->Texture.Unit[i].CombineSourceA, src->Texture.Unit[i].CombineSourceA); COPY_3V(dst->Texture.Unit[i].CombineOperandRGB, src->Texture.Unit[i].CombineOperandRGB); COPY_3V(dst->Texture.Unit[i].CombineOperandA, src->Texture.Unit[i].CombineOperandA); dst->Texture.Unit[i].CombineScaleShiftRGB = src->Texture.Unit[i].CombineScaleShiftRGB; dst->Texture.Unit[i].CombineScaleShiftA = src->Texture.Unit[i].CombineScaleShiftA; /* texture object state */ _mesa_copy_texture_object(dst->Texture.Unit[i].Current1D, src->Texture.Unit[i].Current1D); _mesa_copy_texture_object(dst->Texture.Unit[i].Current2D, src->Texture.Unit[i].Current2D); _mesa_copy_texture_object(dst->Texture.Unit[i].Current3D, src->Texture.Unit[i].Current3D); _mesa_copy_texture_object(dst->Texture.Unit[i].CurrentCubeMap, src->Texture.Unit[i].CurrentCubeMap); _mesa_copy_texture_object(dst->Texture.Unit[i].CurrentRect, src->Texture.Unit[i].CurrentRect); } } /* * For debugging */ void _mesa_print_texunit_state( GLcontext *ctx, GLuint unit ) { const struct gl_texture_unit *texUnit = ctx->Texture.Unit + unit; _mesa_printf("Texture Unit %d\n", unit); _mesa_printf(" GL_TEXTURE_ENV_MODE = %s\n", _mesa_lookup_enum_by_nr(texUnit->EnvMode)); _mesa_printf(" GL_COMBINE_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineModeRGB)); _mesa_printf(" GL_COMBINE_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineModeA)); _mesa_printf(" GL_SOURCE0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceRGB[0])); _mesa_printf(" GL_SOURCE1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceRGB[1])); _mesa_printf(" GL_SOURCE2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceRGB[2])); _mesa_printf(" GL_SOURCE0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceA[0])); _mesa_printf(" GL_SOURCE1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceA[1])); _mesa_printf(" GL_SOURCE2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineSourceA[2])); _mesa_printf(" GL_OPERAND0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandRGB[0])); _mesa_printf(" GL_OPERAND1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandRGB[1])); _mesa_printf(" GL_OPERAND2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandRGB[2])); _mesa_printf(" GL_OPERAND0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandA[0])); _mesa_printf(" GL_OPERAND1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandA[1])); _mesa_printf(" GL_OPERAND2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->CombineOperandA[2])); _mesa_printf(" GL_RGB_SCALE = %d\n", 1 << texUnit->CombineScaleShiftRGB); _mesa_printf(" GL_ALPHA_SCALE = %d\n", 1 << texUnit->CombineScaleShiftA); _mesa_printf(" GL_TEXTURE_ENV_COLOR = (%f, %f, %f, %f)\n", texUnit->EnvColor[0], texUnit->EnvColor[1], texUnit->EnvColor[2], texUnit->EnvColor[3]); } /**********************************************************************/ /* 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); #define TE_ERROR(errCode, msg, value) \ _mesa_error(ctx, errCode, msg, _mesa_lookup_enum_by_nr(value)); if (target == GL_TEXTURE_ENV) { switch (pname) { case GL_TEXTURE_ENV_MODE: { const GLenum mode = (GLenum) (GLint) *param; if (mode == GL_MODULATE || mode == GL_BLEND || mode == GL_DECAL || mode == GL_REPLACE || (mode == GL_ADD && ctx->Extensions.EXT_texture_env_add) || (mode == GL_COMBINE && (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine))) { /* legal */ if (texUnit->EnvMode == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->EnvMode = mode; } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); return; } } 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: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { const GLenum mode = (GLenum) (GLint) *param; switch (mode) { case GL_REPLACE: case GL_MODULATE: case GL_ADD: case GL_ADD_SIGNED: case GL_INTERPOLATE: /* OK */ break; case GL_SUBTRACT: if (!ctx->Extensions.ARB_texture_env_combine) { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); return; } break; case GL_DOT3_RGB_EXT: case GL_DOT3_RGBA_EXT: if (!ctx->Extensions.EXT_texture_env_dot3) { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); return; } break; case GL_DOT3_RGB: case GL_DOT3_RGBA: if (!ctx->Extensions.ARB_texture_env_dot3) { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); return; } break; case GL_MODULATE_ADD_ATI: case GL_MODULATE_SIGNED_ADD_ATI: case GL_MODULATE_SUBTRACT_ATI: if (!ctx->Extensions.ATI_texture_env_combine3) { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); return; } break; default: TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); return; } if (texUnit->CombineModeRGB == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineModeRGB = mode; } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; case GL_COMBINE_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { const GLenum mode = (GLenum) (GLint) *param; switch (mode) { case GL_REPLACE: case GL_MODULATE: case GL_ADD: case GL_ADD_SIGNED: case GL_INTERPOLATE: /* OK */ break; case GL_SUBTRACT: if (!ctx->Extensions.ARB_texture_env_combine) { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); return; } break; case GL_MODULATE_ADD_ATI: case GL_MODULATE_SIGNED_ADD_ATI: case GL_MODULATE_SUBTRACT_ATI: if (!ctx->Extensions.ATI_texture_env_combine3) { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); return; } break; default: TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", mode); return; } if (texUnit->CombineModeA == mode) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineModeA = mode; } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; case GL_SOURCE0_RGB: case GL_SOURCE1_RGB: case GL_SOURCE2_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { const GLenum source = (GLenum) (GLint) *param; const GLuint s = pname - GL_SOURCE0_RGB; if (source == GL_TEXTURE || source == GL_CONSTANT || source == GL_PRIMARY_COLOR || source == GL_PREVIOUS || (ctx->Extensions.ARB_texture_env_crossbar && source >= GL_TEXTURE0 && source < GL_TEXTURE0 + ctx->Const.MaxTextureUnits) || (ctx->Extensions.ATI_texture_env_combine3 && (source == GL_ZERO || source == GL_ONE))) { /* legal */ if (texUnit->CombineSourceRGB[s] == source) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineSourceRGB[s] = source; } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", source); return; } } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; case GL_SOURCE0_ALPHA: case GL_SOURCE1_ALPHA: case GL_SOURCE2_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { const GLenum source = (GLenum) (GLint) *param; const GLuint s = pname - GL_SOURCE0_ALPHA; if (source == GL_TEXTURE || source == GL_CONSTANT || source == GL_PRIMARY_COLOR || source == GL_PREVIOUS || (ctx->Extensions.ARB_texture_env_crossbar && source >= GL_TEXTURE0 && source < GL_TEXTURE0 + ctx->Const.MaxTextureUnits) || (ctx->Extensions.ATI_texture_env_combine3 && (source == GL_ZERO || source == GL_ONE))) { /* legal */ if (texUnit->CombineSourceA[s] == source) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineSourceA[s] = source; } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", source); return; } } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; case GL_OPERAND0_RGB: case GL_OPERAND1_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { const GLenum operand = (GLenum) (GLint) *param; const GLuint s = pname - GL_OPERAND0_RGB; 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: TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); return; } } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; case GL_OPERAND0_ALPHA: case GL_OPERAND1_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { const GLenum operand = (GLenum) (GLint) *param; switch (operand) { case GL_SRC_ALPHA: case GL_ONE_MINUS_SRC_ALPHA: if (texUnit->CombineOperandA[pname-GL_OPERAND0_ALPHA] == operand) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineOperandA[pname-GL_OPERAND0_ALPHA] = operand; break; default: TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); return; } } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; case GL_OPERAND2_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { const GLenum operand = (GLenum) (GLint) *param; switch (operand) { case GL_SRC_COLOR: /* ARB combine only */ case GL_ONE_MINUS_SRC_COLOR: /* ARB combine only */ case GL_SRC_ALPHA: case GL_ONE_MINUS_SRC_ALPHA: /* ARB combine only */ if (texUnit->CombineOperandRGB[2] == operand) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineOperandRGB[2] = operand; break; default: TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); return; } } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; case GL_OPERAND2_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { const GLenum operand = (GLenum) (GLint) *param; switch (operand) { case GL_SRC_ALPHA: case GL_ONE_MINUS_SRC_ALPHA: /* ARB combine only */ if (texUnit->CombineOperandA[2] == operand) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineOperandA[2] = operand; break; default: TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); return; } } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; case GL_RGB_SCALE: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_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(GL_RGB_SCALE not 1, 2 or 4)" ); return; } if (texUnit->CombineScaleShiftRGB == newshift) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineScaleShiftRGB = newshift; } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; case GL_ALPHA_SCALE: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_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(GL_ALPHA_SCALE not 1, 2 or 4)" ); return; } if (texUnit->CombineScaleShiftA == newshift) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->CombineScaleShiftA = newshift; } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } break; default: _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); return; } } else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) { /* GL_EXT_texture_lod_bias */ if (!ctx->Extensions.EXT_texture_lod_bias) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(target=0x%x)", target ); return; } if (pname == GL_TEXTURE_LOD_BIAS_EXT) { if (texUnit->LodBias == param[0]) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texUnit->LodBias = CLAMP(param[0], -ctx->Const.MaxTextureLodBias, ctx->Const.MaxTextureLodBias); } else { TE_ERROR(GL_INVALID_ENUM, "glTexEnv(pname=%s)", pname); return; } } else if (target == GL_POINT_SPRITE_NV) { /* GL_ARB_point_sprite / GL_NV_point_sprite */ if (!ctx->Extensions.NV_point_sprite && !ctx->Extensions.ARB_point_sprite) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(target=0x%x)", target ); return; } if (pname == GL_COORD_REPLACE_NV) { const GLenum value = (GLenum) param[0]; if (value == GL_TRUE || value == GL_FALSE) { /* It's kind of weird to set point state via glTexEnv, * but that's what the spec calls for. */ const GLboolean state = (GLboolean) value; if (ctx->Point.CoordReplace[ctx->Texture.CurrentUnit] == state) return; FLUSH_VERTICES(ctx, _NEW_POINT); ctx->Point.CoordReplace[ctx->Texture.CurrentUnit] = state; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexEnv(param=0x%x)", value); return; } } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname=0x%x)", pname ); return; } } else { _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(target=0x%x)",target ); return; } if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE)) _mesa_debug(ctx, "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]; if (pname == GL_TEXTURE_ENV_COLOR) { 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] ); } else { p[0] = (GLfloat) param[0]; p[1] = p[2] = p[3] = 0; /* init to zero, just to be safe */ } _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) { 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_COMBINE_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineModeRGB; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_COMBINE_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineModeA; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_SOURCE0_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineSourceRGB[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_SOURCE1_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineSourceRGB[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_SOURCE2_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineSourceRGB[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_SOURCE0_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineSourceA[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_SOURCE1_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineSourceA[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_SOURCE2_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineSourceA[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_OPERAND0_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineOperandRGB[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_OPERAND1_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineOperandRGB[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_OPERAND2_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineOperandRGB[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_OPERAND0_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineOperandA[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_OPERAND1_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineOperandA[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_OPERAND2_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLfloat) texUnit->CombineOperandA[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); } break; case GL_RGB_SCALE: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_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 || ctx->Extensions.ARB_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=0x%x)", pname); } } else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) { /* GL_EXT_texture_lod_bias */ if (!ctx->Extensions.EXT_texture_lod_bias) { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(target)" ); return; } if (pname == GL_TEXTURE_LOD_BIAS_EXT) { *params = texUnit->LodBias; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)" ); return; } } else if (target == GL_POINT_SPRITE_NV) { /* GL_ARB_point_sprite / GL_NV_point_sprite */ if (!ctx->Extensions.NV_point_sprite && !ctx->Extensions.ARB_point_sprite) { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(target)" ); return; } if (pname == GL_COORD_REPLACE_NV) { *params = (GLfloat) ctx->Point.CoordReplace[ctx->Texture.CurrentUnit]; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)" ); return; } } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(target)" ); return; } } 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) { 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: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineModeRGB; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_COMBINE_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineModeA; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE0_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineSourceRGB[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE1_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineSourceRGB[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE2_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineSourceRGB[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE0_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineSourceA[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE1_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineSourceA[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_SOURCE2_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineSourceA[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND0_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineOperandRGB[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND1_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineOperandRGB[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND2_RGB: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineOperandRGB[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND0_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineOperandA[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND1_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineOperandA[1]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_OPERAND2_ALPHA: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { *params = (GLint) texUnit->CombineOperandA[2]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); } break; case GL_RGB_SCALE: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { if (texUnit->CombineScaleShiftRGB == 0) *params = 1; else if (texUnit->CombineScaleShiftRGB == 1) *params = 2; else *params = 4; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); return; } break; case GL_ALPHA_SCALE: if (ctx->Extensions.EXT_texture_env_combine || ctx->Extensions.ARB_texture_env_combine) { if (texUnit->CombineScaleShiftA == 0) *params = 1; else if (texUnit->CombineScaleShiftA == 1) *params = 2; else *params = 4; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); return; } break; default: _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname=0x%x)", pname); } } else if (target == GL_TEXTURE_FILTER_CONTROL_EXT) { /* GL_EXT_texture_lod_bias */ if (!ctx->Extensions.EXT_texture_lod_bias) { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(target)" ); return; } if (pname == GL_TEXTURE_LOD_BIAS_EXT) { *params = (GLint) texUnit->LodBias; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)" ); return; } } else if (target == GL_POINT_SPRITE_NV) { /* GL_ARB_point_sprite / GL_NV_point_sprite */ if (!ctx->Extensions.NV_point_sprite && !ctx->Extensions.ARB_point_sprite) { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(target)" ); return; } if (pname == GL_COORD_REPLACE_NV) { *params = (GLint) ctx->Point.CoordReplace[ctx->Texture.CurrentUnit]; } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)" ); return; } } else { _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(target)" ); return; } } /**********************************************************************/ /* 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)) _mesa_debug(ctx, "glTexParameter %s %s %.1f(%s)...\n", _mesa_lookup_enum_by_nr(target), _mesa_lookup_enum_by_nr(pname), *params, _mesa_lookup_enum_by_nr(eparam)); switch (target) { case GL_TEXTURE_1D: texObj = texUnit->Current1D; break; case GL_TEXTURE_2D: texObj = texUnit->Current2D; break; case GL_TEXTURE_3D: texObj = texUnit->Current3D; break; case GL_TEXTURE_CUBE_MAP: if (!ctx->Extensions.ARB_texture_cube_map) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" ); return; } texObj = texUnit->CurrentCubeMap; break; case GL_TEXTURE_RECTANGLE_NV: if (!ctx->Extensions.NV_texture_rectangle) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" ); return; } texObj = texUnit->CurrentRect; break; 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) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->MinFilter = eparam; } else if ((eparam==GL_NEAREST_MIPMAP_NEAREST || eparam==GL_LINEAR_MIPMAP_NEAREST || eparam==GL_NEAREST_MIPMAP_LINEAR || eparam==GL_LINEAR_MIPMAP_LINEAR) && texObj->Target != GL_TEXTURE_RECTANGLE_NV) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); 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) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); 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_CLAMP_TO_EDGE || (eparam == GL_CLAMP_TO_BORDER && ctx->Extensions.ARB_texture_border_clamp)) { /* any texture target */ FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->WrapS = eparam; } else if (texObj->Target != GL_TEXTURE_RECTANGLE_NV && (eparam == GL_REPEAT || (eparam == GL_MIRRORED_REPEAT && ctx->Extensions.ARB_texture_mirrored_repeat) || (eparam == GL_MIRROR_CLAMP_ATI && ctx->Extensions.ATI_texture_mirror_once) || (eparam == GL_MIRROR_CLAMP_TO_EDGE_ATI && ctx->Extensions.ATI_texture_mirror_once))) { /* non-rectangle texture */ FLUSH_VERTICES(ctx, _NEW_TEXTURE); 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_CLAMP_TO_EDGE || (eparam == GL_CLAMP_TO_BORDER && ctx->Extensions.ARB_texture_border_clamp)) { /* any texture target */ FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->WrapT = eparam; } else if (texObj->Target != GL_TEXTURE_RECTANGLE_NV && (eparam == GL_REPEAT || (eparam == GL_MIRRORED_REPEAT && ctx->Extensions.ARB_texture_mirrored_repeat) || (eparam == GL_MIRROR_CLAMP_ATI && ctx->Extensions.ATI_texture_mirror_once) || (eparam == GL_MIRROR_CLAMP_TO_EDGE_ATI && ctx->Extensions.ATI_texture_mirror_once))) { /* non-rectangle texture */ FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->WrapT = eparam; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } break; case GL_TEXTURE_WRAP_R: if (texObj->WrapR == eparam) return; if (eparam == GL_CLAMP || eparam == GL_CLAMP_TO_EDGE || (eparam == GL_CLAMP_TO_BORDER && ctx->Extensions.ARB_texture_border_clamp)) { /* any texture target */ FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->WrapR = eparam; } else if (texObj->Target != GL_TEXTURE_RECTANGLE_NV && (eparam == GL_REPEAT || (eparam == GL_MIRRORED_REPEAT && ctx->Extensions.ARB_texture_mirrored_repeat) || (eparam == GL_MIRROR_CLAMP_ATI && ctx->Extensions.ATI_texture_mirror_once) || (eparam == GL_MIRROR_CLAMP_TO_EDGE_ATI && ctx->Extensions.ATI_texture_mirror_once))) { /* non-rectangle texture */ FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->WrapR = eparam; } else { _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); } break; case GL_TEXTURE_BORDER_COLOR: FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->BorderColor[RCOMP] = params[0]; texObj->BorderColor[GCOMP] = params[1]; texObj->BorderColor[BCOMP] = params[2]; texObj->BorderColor[ACOMP] = params[3]; UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[RCOMP], params[0]); UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[GCOMP], params[1]); UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[BCOMP], params[2]); UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[ACOMP], params[3]); break; case GL_TEXTURE_MIN_LOD: if (texObj->MinLod == params[0]) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->MinLod = params[0]; break; case GL_TEXTURE_MAX_LOD: if (texObj->MaxLod == params[0]) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->MaxLod = params[0]; break; case GL_TEXTURE_BASE_LEVEL: if (params[0] < 0.0) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } if (target == GL_TEXTURE_RECTANGLE_NV && params[0] != 0.0) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } FLUSH_VERTICES(ctx, _NEW_TEXTURE); 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; } FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->MaxLevel = (GLint) params[0]; break; case GL_TEXTURE_PRIORITY: FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->Priority = CLAMP( params[0], 0.0F, 1.0F ); break; case GL_TEXTURE_MAX_ANISOTROPY_EXT: if (ctx->Extensions.EXT_texture_filter_anisotropic) { if (params[0] < 1.0) { _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); return; } FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->MaxAnisotropy = params[0]; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)"); return; } break; case GL_TEXTURE_COMPARE_SGIX: if (ctx->Extensions.SGIX_shadow) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->CompareFlag = params[0] ? GL_TRUE : GL_FALSE; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=GL_TEXTURE_COMPARE_SGIX)"); 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) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->CompareOperator = op; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param)"); } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=GL_TEXTURE_COMPARE_OPERATOR_SGIX)"); return; } break; case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */ if (ctx->Extensions.SGIX_shadow_ambient) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->ShadowAmbient = CLAMP(params[0], 0.0F, 1.0F); } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=GL_SHADOW_AMBIENT_SGIX)"); return; } break; case GL_GENERATE_MIPMAP_SGIS: if (ctx->Extensions.SGIS_generate_mipmap) { texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=GL_GENERATE_MIPMAP_SGIS)"); return; } break; case GL_TEXTURE_COMPARE_MODE_ARB: if (ctx->Extensions.ARB_shadow) { const GLenum mode = (GLenum) params[0]; if (mode == GL_NONE || mode == GL_COMPARE_R_TO_TEXTURE_ARB) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->CompareMode = mode; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(bad GL_TEXTURE_COMPARE_MODE_ARB: 0x%x)", mode); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=GL_TEXTURE_COMPARE_MODE_ARB)"); return; } break; case GL_TEXTURE_COMPARE_FUNC_ARB: if (ctx->Extensions.ARB_shadow) { const GLenum func = (GLenum) params[0]; if (func == GL_LEQUAL || func == GL_GEQUAL) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->CompareFunc = func; } else if (ctx->Extensions.EXT_shadow_funcs && (func == GL_EQUAL || func == GL_NOTEQUAL || func == GL_LESS || func == GL_GREATER || func == GL_ALWAYS || func == GL_NEVER)) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->CompareFunc = func; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(bad GL_TEXTURE_COMPARE_FUNC_ARB)"); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=GL_TEXTURE_COMPARE_FUNC_ARB)"); return; } break; case GL_DEPTH_TEXTURE_MODE_ARB: if (ctx->Extensions.ARB_depth_texture) { const GLenum result = (GLenum) params[0]; if (result == GL_LUMINANCE || result == GL_INTENSITY || result == GL_ALPHA) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); texObj->DepthMode = result; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(bad GL_DEPTH_TEXTURE_MODE_ARB)"); return; } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=GL_DEPTH_TEXTURE_MODE_ARB)"); return; } break; case GL_TEXTURE_LOD_BIAS: /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias*/ if (ctx->Extensions.EXT_texture_lod_bias) { texObj->LodBias = CLAMP(params[0], -ctx->Const.MaxTextureLodBias, ctx->Const.MaxTextureLodBias); } break; default: _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); return; } texObj->Complete = GL_FALSE; if (ctx->Driver.TexParameter) { (*ctx->Driver.TexParameter)( ctx, target, texObj, pname, params ); } } void _mesa_TexParameteri( GLenum target, GLenum pname, GLint param ) { GLfloat fparam[4]; if (pname == GL_TEXTURE_PRIORITY) fparam[0] = INT_TO_FLOAT(param); else 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]; if (pname == GL_TEXTURE_BORDER_COLOR) { fparam[0] = INT_TO_FLOAT(params[0]); fparam[1] = INT_TO_FLOAT(params[1]); fparam[2] = INT_TO_FLOAT(params[2]); fparam[3] = INT_TO_FLOAT(params[3]); } else { if (pname == GL_TEXTURE_PRIORITY) fparam[0] = INT_TO_FLOAT(params[0]); else fparam[0] = (GLfloat) params[0]; fparam[1] = fparam[2] = fparam[3] = 0.0F; } _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: case GL_PROXY_TEXTURE_CUBE_MAP: case GL_TEXTURE_CUBE_MAP_POSITIVE_X: case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: return ctx->Extensions.ARB_texture_cube_map ? 2 : 0; case GL_TEXTURE_RECTANGLE_NV: case GL_PROXY_TEXTURE_RECTANGLE_NV: return ctx->Extensions.NV_texture_rectangle ? 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; GLint maxLevels; ASSERT_OUTSIDE_BEGIN_END(ctx); /* this will catch bad target values */ dimensions = tex_image_dimensions(ctx, target); /* 1, 2 or 3 */ if (dimensions == 0) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(target)"); return; } switch (target) { case GL_TEXTURE_1D: case GL_PROXY_TEXTURE_1D: case GL_TEXTURE_2D: case GL_PROXY_TEXTURE_2D: maxLevels = ctx->Const.MaxTextureLevels; break; case GL_TEXTURE_3D: case GL_PROXY_TEXTURE_3D: maxLevels = ctx->Const.Max3DTextureLevels; break; case GL_TEXTURE_CUBE_MAP_POSITIVE_X: case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: case GL_PROXY_TEXTURE_CUBE_MAP: maxLevels = ctx->Const.MaxCubeTextureLevels; break; case GL_TEXTURE_RECTANGLE_NV: case GL_PROXY_TEXTURE_RECTANGLE_NV: maxLevels = 1; break; default: _mesa_problem(ctx, "switch in _mesa_GetTexLevelParameter"); return; } if (level < 0 || level >= maxLevels) { _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); return; } img = _mesa_select_tex_image(ctx, texUnit, target, level); if (!img || !img->TexFormat) { /* undefined texture image */ 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) || (target == GL_PROXY_TEXTURE_RECTANGLE_NV); 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_INTERNAL_FORMAT: *params = img->IntFormat; return; case GL_TEXTURE_BORDER: *params = img->Border; return; case GL_TEXTURE_RED_SIZE: if (img->Format == GL_RGB || img->Format == GL_RGBA) *params = img->TexFormat->RedBits; else *params = 0; return; case GL_TEXTURE_GREEN_SIZE: if (img->Format == GL_RGB || img->Format == GL_RGBA) *params = img->TexFormat->GreenBits; else *params = 0; return; case GL_TEXTURE_BLUE_SIZE: if (img->Format == GL_RGB || img->Format == GL_RGBA) *params = img->TexFormat->BlueBits; else *params = 0; return; case GL_TEXTURE_ALPHA_SIZE: if (img->Format == GL_ALPHA || img->Format == GL_LUMINANCE_ALPHA || img->Format == GL_RGBA) *params = img->TexFormat->AlphaBits; else *params = 0; return; case GL_TEXTURE_INTENSITY_SIZE: if (img->Format != GL_INTENSITY) *params = 0; else if (img->TexFormat->IntensityBits > 0) *params = img->TexFormat->IntensityBits; else /* intensity probably stored as rgb texture */ *params = MIN2(img->TexFormat->RedBits, img->TexFormat->GreenBits); return; case GL_TEXTURE_LUMINANCE_SIZE: if (img->Format != GL_LUMINANCE && img->Format != GL_LUMINANCE_ALPHA) *params = 0; else if (img->TexFormat->LuminanceBits > 0) *params = img->TexFormat->LuminanceBits; else /* luminance probably stored as rgb texture */ *params = MIN2(img->TexFormat->RedBits, img->TexFormat->GreenBits); return; case GL_TEXTURE_INDEX_SIZE_EXT: if (img->Format == GL_COLOR_INDEX) *params = img->TexFormat->IndexBits; else *params = 0; 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->TexFormat->DepthBits; else _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); return; /* GL_ARB_texture_compression */ case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: 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: 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); return; case GL_TEXTURE_MIN_FILTER: *params = ENUM_TO_FLOAT(obj->MinFilter); return; case GL_TEXTURE_WRAP_S: *params = ENUM_TO_FLOAT(obj->WrapS); return; case GL_TEXTURE_WRAP_T: *params = ENUM_TO_FLOAT(obj->WrapT); return; case GL_TEXTURE_WRAP_R: *params = ENUM_TO_FLOAT(obj->WrapR); return; case GL_TEXTURE_BORDER_COLOR: params[0] = CLAMP(obj->BorderColor[0], 0.0F, 1.0F); params[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F); params[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F); params[3] = CLAMP(obj->BorderColor[3], 0.0F, 1.0F); return; 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); } return; case GL_TEXTURE_PRIORITY: *params = obj->Priority; return; case GL_TEXTURE_MIN_LOD: *params = obj->MinLod; return; case GL_TEXTURE_MAX_LOD: *params = obj->MaxLod; return; case GL_TEXTURE_BASE_LEVEL: *params = (GLfloat) obj->BaseLevel; return; case GL_TEXTURE_MAX_LEVEL: *params = (GLfloat) obj->MaxLevel; return; case GL_TEXTURE_MAX_ANISOTROPY_EXT: if (ctx->Extensions.EXT_texture_filter_anisotropic) { *params = obj->MaxAnisotropy; return; } break; case GL_TEXTURE_COMPARE_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLfloat) obj->CompareFlag; return; } break; case GL_TEXTURE_COMPARE_OPERATOR_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLfloat) obj->CompareOperator; return; } break; case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */ if (ctx->Extensions.SGIX_shadow_ambient) { *params = obj->ShadowAmbient; return; } break; case GL_GENERATE_MIPMAP_SGIS: if (ctx->Extensions.SGIS_generate_mipmap) { *params = (GLfloat) obj->GenerateMipmap; return; } break; case GL_TEXTURE_COMPARE_MODE_ARB: if (ctx->Extensions.ARB_shadow) { *params = (GLfloat) obj->CompareMode; return; } break; case GL_TEXTURE_COMPARE_FUNC_ARB: if (ctx->Extensions.ARB_shadow) { *params = (GLfloat) obj->CompareFunc; return; } break; case GL_DEPTH_TEXTURE_MODE_ARB: if (ctx->Extensions.ARB_depth_texture) { *params = (GLfloat) obj->DepthMode; return; } break; case GL_TEXTURE_LOD_BIAS: if (ctx->Extensions.EXT_texture_lod_bias) { *params = obj->LodBias; break; } break; default: ; /* silence warnings */ } /* If we get here, pname was an unrecognized enum */ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)", 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; case GL_TEXTURE_LOD_BIAS: if (ctx->Extensions.EXT_texture_lod_bias) { *params = (GLint) obj->LodBias; break; } break; return; case GL_TEXTURE_MIN_FILTER: *params = (GLint) obj->MinFilter; return; case GL_TEXTURE_WRAP_S: *params = (GLint) obj->WrapS; return; case GL_TEXTURE_WRAP_T: *params = (GLint) obj->WrapT; return; case GL_TEXTURE_WRAP_R: *params = (GLint) obj->WrapR; return; case GL_TEXTURE_BORDER_COLOR: { GLfloat b[4]; b[0] = CLAMP(obj->BorderColor[0], 0.0F, 1.0F); b[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F); b[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F); b[3] = CLAMP(obj->BorderColor[3], 0.0F, 1.0F); params[0] = FLOAT_TO_INT(b[0]); params[1] = FLOAT_TO_INT(b[1]); params[2] = FLOAT_TO_INT(b[2]); params[3] = FLOAT_TO_INT(b[3]); } return; case GL_TEXTURE_RESIDENT: { GLboolean resident; if (ctx->Driver.IsTextureResident) resident = ctx->Driver.IsTextureResident(ctx, obj); else resident = GL_TRUE; *params = (GLint) resident; } return; case GL_TEXTURE_PRIORITY: *params = FLOAT_TO_INT(obj->Priority); return; case GL_TEXTURE_MIN_LOD: *params = (GLint) obj->MinLod; return; case GL_TEXTURE_MAX_LOD: *params = (GLint) obj->MaxLod; return; case GL_TEXTURE_BASE_LEVEL: *params = obj->BaseLevel; return; case GL_TEXTURE_MAX_LEVEL: *params = obj->MaxLevel; return; case GL_TEXTURE_MAX_ANISOTROPY_EXT: if (ctx->Extensions.EXT_texture_filter_anisotropic) { *params = (GLint) obj->MaxAnisotropy; return; } break; case GL_TEXTURE_COMPARE_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLint) obj->CompareFlag; return; } break; case GL_TEXTURE_COMPARE_OPERATOR_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLint) obj->CompareOperator; return; } break; case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */ if (ctx->Extensions.SGIX_shadow_ambient) { *params = (GLint) FLOAT_TO_INT(obj->ShadowAmbient); return; } break; case GL_GENERATE_MIPMAP_SGIS: if (ctx->Extensions.SGIS_generate_mipmap) { *params = (GLint) obj->GenerateMipmap; return; } break; case GL_TEXTURE_COMPARE_MODE_ARB: if (ctx->Extensions.ARB_shadow) { *params = (GLint) obj->CompareMode; return; } break; case GL_TEXTURE_COMPARE_FUNC_ARB: if (ctx->Extensions.ARB_shadow) { *params = (GLint) obj->CompareFunc; return; } break; case GL_DEPTH_TEXTURE_MODE_ARB: if (ctx->Extensions.ARB_depth_texture) { *params = (GLint) obj->DepthMode; return; } break; default: ; /* silence warnings */ } /* If we get here, pname was an unrecognized enum */ _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", pname); } /**********************************************************************/ /* Texture Coord Generation */ /**********************************************************************/ #if FEATURE_texgen void _mesa_TexGenfv( GLenum coord, GLenum pname, const GLfloat *params ) { GET_CURRENT_CONTEXT(ctx); GLuint tUnit = ctx->Texture.CurrentUnit; struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit]; ASSERT_OUTSIDE_BEGIN_END(ctx); if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE)) _mesa_debug(ctx, "glTexGen %s %s %.1f(%s)...\n", _mesa_lookup_enum_by_nr(coord), _mesa_lookup_enum_by_nr(pname), *params, _mesa_lookup_enum_by_nr((GLenum) (GLint) *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->ModelviewMatrixStack.Top->flags & MAT_DIRTY_INVERSE) { _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); } _mesa_transform_vector( tmp, params, ctx->ModelviewMatrixStack.Top->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->ModelviewMatrixStack.Top->flags & MAT_DIRTY_INVERSE) { _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); } _mesa_transform_vector( tmp, params, ctx->ModelviewMatrixStack.Top->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->ModelviewMatrixStack.Top->flags & MAT_DIRTY_INVERSE) { _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); } _mesa_transform_vector( tmp, params, ctx->ModelviewMatrixStack.Top->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->ModelviewMatrixStack.Top->flags & MAT_DIRTY_INVERSE) { _math_matrix_analyse( ctx->ModelviewMatrixStack.Top ); } _mesa_transform_vector( tmp, params, ctx->ModelviewMatrixStack.Top->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] = (GLfloat) params[0]; if (pname == GL_TEXTURE_GEN_MODE) { p[1] = p[2] = p[3] = 0.0F; } else { p[1] = (GLfloat) params[1]; p[2] = (GLfloat) params[2]; p[3] = (GLfloat) 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] = (GLfloat) params[0]; if (pname == GL_TEXTURE_GEN_MODE) { p[1] = p[2] = p[3] = 0.0F; } else { p[1] = (GLfloat) params[1]; p[2] = (GLfloat) params[2]; p[3] = (GLfloat) 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.CurrentUnit; 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.CurrentUnit; 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.CurrentUnit; 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; } } #endif /* GL_ARB_multitexture */ void _mesa_ActiveTextureARB( GLenum target ) { GET_CURRENT_CONTEXT(ctx); const GLuint texUnit = target - GL_TEXTURE0; ASSERT_OUTSIDE_BEGIN_END(ctx); if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) _mesa_debug(ctx, "glActiveTexture %s\n", _mesa_lookup_enum_by_nr(target)); /* Cater for texture unit 0 is first, therefore use >= */ if (texUnit >= ctx->Const.MaxTextureUnits) { _mesa_error(ctx, GL_INVALID_ENUM, "glActiveTexture(target)"); return; } if (ctx->Texture.CurrentUnit == texUnit) return; FLUSH_VERTICES(ctx, _NEW_TEXTURE); ctx->Texture.CurrentUnit = texUnit; if (ctx->Transform.MatrixMode == GL_TEXTURE) { /* update current stack pointer */ ctx->CurrentStack = &ctx->TextureMatrixStack[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; ASSERT_OUTSIDE_BEGIN_END(ctx); if (texUnit > ctx->Const.MaxTextureUnits) { _mesa_error(ctx, GL_INVALID_ENUM, "glClientActiveTexture(target)"); return; } FLUSH_VERTICES(ctx, _NEW_ARRAY); ctx->Array.ActiveTexture = texUnit; } /**********************************************************************/ /* Pixel Texgen Extensions */ /**********************************************************************/ void _mesa_PixelTexGenSGIX(GLenum mode) { GLenum newRgbSource, newAlphaSource; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); switch (mode) { case GL_NONE: newRgbSource = GL_PIXEL_GROUP_COLOR_SGIS; newAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS; break; case GL_ALPHA: newRgbSource = GL_PIXEL_GROUP_COLOR_SGIS; newAlphaSource = GL_CURRENT_RASTER_COLOR; break; case GL_RGB: newRgbSource = GL_CURRENT_RASTER_COLOR; newAlphaSource = GL_PIXEL_GROUP_COLOR_SGIS; break; case GL_RGBA: newRgbSource = GL_CURRENT_RASTER_COLOR; newAlphaSource = GL_CURRENT_RASTER_COLOR; break; default: _mesa_error(ctx, GL_INVALID_ENUM, "glPixelTexGenSGIX(mode)"); return; } if (newRgbSource == ctx->Pixel.FragmentRgbSource && newAlphaSource == ctx->Pixel.FragmentAlphaSource) return; FLUSH_VERTICES(ctx, _NEW_PIXEL); ctx->Pixel.FragmentRgbSource = newRgbSource; ctx->Pixel.FragmentAlphaSource = newAlphaSource; } void _mesa_PixelTexGenParameterfSGIS(GLenum target, GLfloat value) { _mesa_PixelTexGenParameteriSGIS(target, (GLint) value); } void _mesa_PixelTexGenParameterfvSGIS(GLenum target, const GLfloat *value) { _mesa_PixelTexGenParameteriSGIS(target, (GLint) *value); } void _mesa_PixelTexGenParameteriSGIS(GLenum target, GLint value) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); if (value != GL_CURRENT_RASTER_COLOR && value != GL_PIXEL_GROUP_COLOR_SGIS) { _mesa_error(ctx, GL_INVALID_ENUM, "glPixelTexGenParameterSGIS(value)"); return; } switch (target) { case GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS: if (ctx->Pixel.FragmentRgbSource == (GLenum) value) return; FLUSH_VERTICES(ctx, _NEW_PIXEL); ctx->Pixel.FragmentRgbSource = (GLenum) value; break; case GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS: if (ctx->Pixel.FragmentAlphaSource == (GLenum) value) return; FLUSH_VERTICES(ctx, _NEW_PIXEL); ctx->Pixel.FragmentAlphaSource = (GLenum) value; break; default: _mesa_error(ctx, GL_INVALID_ENUM, "glPixelTexGenParameterSGIS(target)"); return; } } void _mesa_PixelTexGenParameterivSGIS(GLenum target, const GLint *value) { _mesa_PixelTexGenParameteriSGIS(target, *value); } void _mesa_GetPixelTexGenParameterfvSGIS(GLenum target, GLfloat *value) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); if (target == GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS) { *value = (GLfloat) ctx->Pixel.FragmentRgbSource; } else if (target == GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS) { *value = (GLfloat) ctx->Pixel.FragmentAlphaSource; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelTexGenParameterfvSGIS(target)"); } } void _mesa_GetPixelTexGenParameterivSGIS(GLenum target, GLint *value) { GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); if (target == GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS) { *value = (GLint) ctx->Pixel.FragmentRgbSource; } else if (target == GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS) { *value = (GLint) ctx->Pixel.FragmentAlphaSource; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetPixelTexGenParameterivSGIS(target)"); } } /**********************************************************************/ /***** State management *****/ /**********************************************************************/ /** * \note This routine refers to derived texture attribute values to * compute the ENABLE_TEXMAT flags, but is only called on * _NEW_TEXTURE_MATRIX. On changes to _NEW_TEXTURE, the ENABLE_TEXMAT * flags are updated by _mesa_update_textures(), below. * * \param ctx GL context. */ static void update_texture_matrices( GLcontext *ctx ) { GLuint i; ctx->Texture._TexMatEnabled = 0; for (i=0; i < ctx->Const.MaxTextureUnits; i++) { if (ctx->TextureMatrixStack[i].Top->flags & MAT_DIRTY) { _math_matrix_analyse( ctx->TextureMatrixStack[i].Top ); if (ctx->Texture.Unit[i]._ReallyEnabled && ctx->TextureMatrixStack[i].Top->type != MATRIX_IDENTITY) ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(i); if (ctx->Driver.TextureMatrix) ctx->Driver.TextureMatrix( ctx, i, ctx->TextureMatrixStack[i].Top); } } } /** * \note This routine refers to derived texture matrix values to * compute the ENABLE_TEXMAT flags, but is only called on * _NEW_TEXTURE. On changes to _NEW_TEXTURE_MATRIX, the ENABLE_TEXMAT * flags are updated by _mesa_update_texture_matrices, above. * * \param ctx GL context. */ static void update_texture_state( GLcontext *ctx ) { GLuint unit; ctx->Texture._EnabledUnits = 0; ctx->Texture._GenFlags = 0; ctx->Texture._TexMatEnabled = 0; ctx->Texture._TexGenEnabled = 0; /* Update texture unit state. * XXX this loop should probably be broken into separate loops for * texture coord units and texture image units. */ for (unit = 0; unit < ctx->Const.MaxTextureUnits; unit++) { struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; GLuint enableBits; texUnit->_ReallyEnabled = 0; texUnit->_GenFlags = 0; /* Get the bitmask of texture enables */ if (ctx->FragmentProgram.Enabled && ctx->FragmentProgram.Current) { enableBits = ctx->FragmentProgram.Current->TexturesUsed[unit]; } else { if (!texUnit->Enabled) continue; enableBits = texUnit->Enabled; } /* Look for the highest-priority texture target that's enabled and * complete. That's the one we'll use for texturing. If we're using * a fragment program we're guaranteed that bitcount(enabledBits) <= 1. */ if (texUnit->Enabled & TEXTURE_CUBE_BIT) { struct gl_texture_object *texObj = texUnit->CurrentCubeMap; if (!texObj->Complete) { _mesa_test_texobj_completeness(ctx, texObj); } if (texObj->Complete) { texUnit->_ReallyEnabled = TEXTURE_CUBE_BIT; texUnit->_Current = texObj; } } if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_3D_BIT)) { struct gl_texture_object *texObj = texUnit->Current3D; if (!texObj->Complete) { _mesa_test_texobj_completeness(ctx, texObj); } if (texObj->Complete) { texUnit->_ReallyEnabled = TEXTURE_3D_BIT; texUnit->_Current = texObj; } } if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_RECT_BIT)) { struct gl_texture_object *texObj = texUnit->CurrentRect; if (!texObj->Complete) { _mesa_test_texobj_completeness(ctx, texObj); } if (texObj->Complete) { texUnit->_ReallyEnabled = TEXTURE_RECT_BIT; texUnit->_Current = texObj; } } if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_2D_BIT)) { struct gl_texture_object *texObj = texUnit->Current2D; if (!texObj->Complete) { _mesa_test_texobj_completeness(ctx, texObj); } if (texObj->Complete) { texUnit->_ReallyEnabled = TEXTURE_2D_BIT; texUnit->_Current = texObj; } } if (!texUnit->_ReallyEnabled && (texUnit->Enabled & TEXTURE_1D_BIT)) { struct gl_texture_object *texObj = texUnit->Current1D; if (!texObj->Complete) { _mesa_test_texobj_completeness(ctx, texObj); } if (texObj->Complete) { texUnit->_ReallyEnabled = TEXTURE_1D_BIT; texUnit->_Current = texObj; } } if (!texUnit->_ReallyEnabled) { texUnit->_Current = NULL; continue; } if (texUnit->_ReallyEnabled) ctx->Texture._EnabledUnits |= (1 << unit); if (texUnit->TexGenEnabled) { if (texUnit->TexGenEnabled & S_BIT) { texUnit->_GenFlags |= texUnit->_GenBitS; } if (texUnit->TexGenEnabled & T_BIT) { texUnit->_GenFlags |= texUnit->_GenBitT; } if (texUnit->TexGenEnabled & Q_BIT) { texUnit->_GenFlags |= texUnit->_GenBitQ; } if (texUnit->TexGenEnabled & R_BIT) { texUnit->_GenFlags |= texUnit->_GenBitR; } ctx->Texture._TexGenEnabled |= ENABLE_TEXGEN(unit); ctx->Texture._GenFlags |= texUnit->_GenFlags; } if (ctx->TextureMatrixStack[unit].Top->type != MATRIX_IDENTITY) ctx->Texture._TexMatEnabled |= ENABLE_TEXMAT(unit); } ctx->Texture._EnabledCoordUnits = ctx->Texture._EnabledUnits; /* Fragment programs may need texture coordinates but not the * corresponding texture images. */ if (ctx->FragmentProgram.Enabled && ctx->FragmentProgram.Current) { ctx->Texture._EnabledCoordUnits |= (ctx->FragmentProgram.Current->InputsRead >> FRAG_ATTRIB_TEX0); } } void _mesa_update_texture( GLcontext *ctx, GLuint new_state ) { if (new_state & _NEW_TEXTURE_MATRIX) update_texture_matrices( ctx ); if (new_state & _NEW_TEXTURE) update_texture_state( ctx ); } /**********************************************************************/ /***** Initialization *****/ /**********************************************************************/ /** * Allocate the proxy textures for the given context. * * \param ctx the context to allocate proxies for. * * \return GL_TRUE on success, or GL_FALSE on failure * * If run out of memory part way through the allocations, clean up and return * GL_FALSE. */ static GLboolean alloc_proxy_textures( GLcontext *ctx ) { ctx->Texture.Proxy1D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_1D); if (!ctx->Texture.Proxy1D) goto cleanup; ctx->Texture.Proxy2D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_2D); if (!ctx->Texture.Proxy2D) goto cleanup; ctx->Texture.Proxy3D = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_3D); if (!ctx->Texture.Proxy3D) goto cleanup; ctx->Texture.ProxyCubeMap = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_CUBE_MAP_ARB); if (!ctx->Texture.ProxyCubeMap) goto cleanup; ctx->Texture.ProxyRect = (*ctx->Driver.NewTextureObject)(ctx, 0, GL_TEXTURE_RECTANGLE_NV); if (!ctx->Texture.ProxyRect) goto cleanup; return GL_TRUE; cleanup: if (ctx->Texture.Proxy1D) (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1D); if (ctx->Texture.Proxy2D) (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2D); if (ctx->Texture.Proxy3D) (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy3D); if (ctx->Texture.ProxyCubeMap) (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyCubeMap); if (ctx->Texture.ProxyRect) (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyRect); return GL_FALSE; } /** * Initialize a texture unit. * * \param ctx GL context. * \param unit texture unit number to be initialized. */ static void init_texture_unit( GLcontext *ctx, GLuint unit ) { struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; texUnit->EnvMode = GL_MODULATE; ASSIGN_4V( texUnit->EnvColor, 0.0, 0.0, 0.0, 0.0 ); texUnit->CombineModeRGB = GL_MODULATE; texUnit->CombineModeA = GL_MODULATE; texUnit->CombineSourceRGB[0] = GL_TEXTURE; texUnit->CombineSourceRGB[1] = GL_PREVIOUS_EXT; texUnit->CombineSourceRGB[2] = GL_CONSTANT_EXT; texUnit->CombineSourceA[0] = GL_TEXTURE; texUnit->CombineSourceA[1] = GL_PREVIOUS_EXT; texUnit->CombineSourceA[2] = GL_CONSTANT_EXT; texUnit->CombineOperandRGB[0] = GL_SRC_COLOR; texUnit->CombineOperandRGB[1] = GL_SRC_COLOR; texUnit->CombineOperandRGB[2] = GL_SRC_ALPHA; texUnit->CombineOperandA[0] = GL_SRC_ALPHA; texUnit->CombineOperandA[1] = GL_SRC_ALPHA; texUnit->CombineOperandA[2] = GL_SRC_ALPHA; texUnit->CombineScaleShiftRGB = 0; texUnit->CombineScaleShiftA = 0; texUnit->TexGenEnabled = 0; texUnit->GenModeS = GL_EYE_LINEAR; texUnit->GenModeT = GL_EYE_LINEAR; texUnit->GenModeR = GL_EYE_LINEAR; texUnit->GenModeQ = GL_EYE_LINEAR; texUnit->_GenBitS = TEXGEN_EYE_LINEAR; texUnit->_GenBitT = TEXGEN_EYE_LINEAR; texUnit->_GenBitR = TEXGEN_EYE_LINEAR; texUnit->_GenBitQ = TEXGEN_EYE_LINEAR; /* Yes, these plane coefficients are correct! */ ASSIGN_4V( texUnit->ObjectPlaneS, 1.0, 0.0, 0.0, 0.0 ); ASSIGN_4V( texUnit->ObjectPlaneT, 0.0, 1.0, 0.0, 0.0 ); ASSIGN_4V( texUnit->ObjectPlaneR, 0.0, 0.0, 0.0, 0.0 ); ASSIGN_4V( texUnit->ObjectPlaneQ, 0.0, 0.0, 0.0, 0.0 ); ASSIGN_4V( texUnit->EyePlaneS, 1.0, 0.0, 0.0, 0.0 ); ASSIGN_4V( texUnit->EyePlaneT, 0.0, 1.0, 0.0, 0.0 ); ASSIGN_4V( texUnit->EyePlaneR, 0.0, 0.0, 0.0, 0.0 ); ASSIGN_4V( texUnit->EyePlaneQ, 0.0, 0.0, 0.0, 0.0 ); texUnit->Current1D = ctx->Shared->Default1D; texUnit->Current2D = ctx->Shared->Default2D; texUnit->Current3D = ctx->Shared->Default3D; texUnit->CurrentCubeMap = ctx->Shared->DefaultCubeMap; texUnit->CurrentRect = ctx->Shared->DefaultRect; } GLboolean _mesa_init_texture( GLcontext * ctx ) { int i; assert(MAX_TEXTURE_LEVELS >= MAX_3D_TEXTURE_LEVELS); assert(MAX_TEXTURE_LEVELS >= MAX_CUBE_TEXTURE_LEVELS); /* Effectively bind the default textures to all texture units */ ctx->Shared->Default1D->RefCount += MAX_TEXTURE_UNITS; ctx->Shared->Default2D->RefCount += MAX_TEXTURE_UNITS; ctx->Shared->Default3D->RefCount += MAX_TEXTURE_UNITS; ctx->Shared->DefaultCubeMap->RefCount += MAX_TEXTURE_UNITS; ctx->Shared->DefaultRect->RefCount += MAX_TEXTURE_UNITS; /* Texture group */ ctx->Texture.CurrentUnit = 0; /* multitexture */ ctx->Texture._EnabledUnits = 0; for (i=0; iTexture.SharedPalette = GL_FALSE; _mesa_init_colortable(&ctx->Texture.Palette); /* Allocate proxy textures */ if (!alloc_proxy_textures( ctx )) return GL_FALSE; return GL_TRUE; } void _mesa_free_texture_data( GLcontext *ctx ) { int i; /* Free proxy texture objects */ (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy1D ); (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy2D ); (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.Proxy3D ); (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyCubeMap ); (ctx->Driver.DeleteTexture)(ctx, ctx->Texture.ProxyRect ); for (i = 0; i < MAX_TEXTURE_IMAGE_UNITS; i++) _mesa_free_colortable_data( &ctx->Texture.Unit[i].ColorTable ); }