diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/texstate.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/texstate.c | 3271 |
1 files changed, 3271 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/texstate.c b/nx-X11/extras/Mesa/src/mesa/main/texstate.c new file mode 100644 index 000000000..8ac41a277 --- /dev/null +++ b/nx-X11/extras/Mesa/src/mesa/main/texstate.c @@ -0,0 +1,3271 @@ +/* + * Mesa 3-D graphics library + * Version: 6.5 + * + * Copyright (C) 1999-2005 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. + */ + +/** + * \file texstate.c + * + * Texture state handling. + */ + +#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 "texenvprogram.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 + +/** + * Default texture combine environment state. This is used to initialize + * a context's texture units and as the basis for converting "classic" + * texture environmnets to ARB_texture_env_combine style values. + */ +static const struct gl_tex_env_combine_state default_combine_state = { + GL_MODULATE, GL_MODULATE, + { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT }, + { GL_TEXTURE, GL_PREVIOUS, GL_CONSTANT }, + { GL_SRC_COLOR, GL_SRC_COLOR, GL_SRC_ALPHA }, + { GL_SRC_ALPHA, GL_SRC_ALPHA, GL_SRC_ALPHA }, + 0, 0, + 2, 2 +}; + + +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].Combine.ModeRGB = src->Texture.Unit[i].Combine.ModeRGB; + dst->Texture.Unit[i].Combine.ModeA = src->Texture.Unit[i].Combine.ModeA; + COPY_3V(dst->Texture.Unit[i].Combine.SourceRGB, src->Texture.Unit[i].Combine.SourceRGB); + COPY_3V(dst->Texture.Unit[i].Combine.SourceA, src->Texture.Unit[i].Combine.SourceA); + COPY_3V(dst->Texture.Unit[i].Combine.OperandRGB, src->Texture.Unit[i].Combine.OperandRGB); + COPY_3V(dst->Texture.Unit[i].Combine.OperandA, src->Texture.Unit[i].Combine.OperandA); + dst->Texture.Unit[i].Combine.ScaleShiftRGB = src->Texture.Unit[i].Combine.ScaleShiftRGB; + dst->Texture.Unit[i].Combine.ScaleShiftA = src->Texture.Unit[i].Combine.ScaleShiftA; + + /* 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->Combine.ModeRGB)); + _mesa_printf(" GL_COMBINE_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.ModeA)); + _mesa_printf(" GL_SOURCE0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[0])); + _mesa_printf(" GL_SOURCE1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[1])); + _mesa_printf(" GL_SOURCE2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceRGB[2])); + _mesa_printf(" GL_SOURCE0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[0])); + _mesa_printf(" GL_SOURCE1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[1])); + _mesa_printf(" GL_SOURCE2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.SourceA[2])); + _mesa_printf(" GL_OPERAND0_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[0])); + _mesa_printf(" GL_OPERAND1_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[1])); + _mesa_printf(" GL_OPERAND2_RGB = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandRGB[2])); + _mesa_printf(" GL_OPERAND0_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[0])); + _mesa_printf(" GL_OPERAND1_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[1])); + _mesa_printf(" GL_OPERAND2_ALPHA = %s\n", _mesa_lookup_enum_by_nr(texUnit->Combine.OperandA[2])); + _mesa_printf(" GL_RGB_SCALE = %d\n", 1 << texUnit->Combine.ScaleShiftRGB); + _mesa_printf(" GL_ALPHA_SCALE = %d\n", 1 << texUnit->Combine.ScaleShiftA); + _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 */ +/**********************************************************************/ + +/** + * Convert "classic" texture environment to ARB_texture_env_combine style + * environments. + * + * \param state texture_env_combine state vector to be filled-in. + * \param mode Classic texture environment mode (i.e., \c GL_REPLACE, + * \c GL_BLEND, \c GL_DECAL, etc.). + * \param texBaseFormat Base format of the texture associated with the + * texture unit. + */ +static void +calculate_derived_texenv( struct gl_tex_env_combine_state *state, + GLenum mode, GLenum texBaseFormat ) +{ + GLenum mode_rgb; + GLenum mode_a; + + *state = default_combine_state; + + switch (texBaseFormat) { + case GL_ALPHA: + state->SourceRGB[0] = GL_PREVIOUS; + break; + + case GL_LUMINANCE_ALPHA: + case GL_INTENSITY: + case GL_RGBA: + break; + + case GL_LUMINANCE: + case GL_RGB: + case GL_YCBCR_MESA: + state->SourceA[0] = GL_PREVIOUS; + break; + + default: + _mesa_problem(NULL, "Invalid texBaseFormat in calculate_derived_texenv"); + return; + } + + switch (mode) { + case GL_REPLACE: + case GL_MODULATE: + mode_rgb = (texBaseFormat == GL_ALPHA) ? GL_REPLACE : mode; + mode_a = mode; + break; + + case GL_DECAL: + mode_rgb = GL_INTERPOLATE; + mode_a = GL_REPLACE; + + state->SourceA[0] = GL_PREVIOUS; + + /* Having alpha / luminance / intensity textures replace using the + * incoming fragment color matches the definition in NV_texture_shader. + * The 1.5 spec simply marks these as "undefined". + */ + switch (texBaseFormat) { + case GL_ALPHA: + case GL_LUMINANCE: + case GL_LUMINANCE_ALPHA: + case GL_INTENSITY: + state->SourceRGB[0] = GL_PREVIOUS; + break; + case GL_RGB: + case GL_YCBCR_MESA: + mode_rgb = GL_REPLACE; + break; + case GL_RGBA: + state->SourceRGB[2] = GL_TEXTURE; + break; + } + break; + + case GL_BLEND: + mode_rgb = GL_INTERPOLATE; + mode_a = GL_MODULATE; + + switch (texBaseFormat) { + case GL_ALPHA: + mode_rgb = GL_REPLACE; + break; + case GL_INTENSITY: + mode_a = GL_INTERPOLATE; + state->SourceA[0] = GL_CONSTANT; + state->OperandA[2] = GL_SRC_ALPHA; + /* FALLTHROUGH */ + case GL_LUMINANCE: + case GL_RGB: + case GL_LUMINANCE_ALPHA: + case GL_RGBA: + case GL_YCBCR_MESA: + state->SourceRGB[2] = GL_TEXTURE; + state->SourceA[2] = GL_TEXTURE; + state->SourceRGB[0] = GL_CONSTANT; + state->OperandRGB[2] = GL_SRC_COLOR; + break; + } + break; + + case GL_ADD: + mode_rgb = (texBaseFormat == GL_ALPHA) ? GL_REPLACE : GL_ADD; + mode_a = (texBaseFormat == GL_INTENSITY) ? GL_ADD : GL_MODULATE; + break; + + default: + _mesa_problem(NULL, + "Invalid texture env mode in calculate_derived_texenv"); + return; + } + + state->ModeRGB = (state->SourceRGB[0] != GL_PREVIOUS) + ? mode_rgb : GL_REPLACE; + state->ModeA = (state->SourceA[0] != GL_PREVIOUS) + ? mode_a : GL_REPLACE; +} + + +void GLAPIENTRY +_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 (texUnit->EnvMode == mode) + return; + 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 */ + 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; + if (texUnit->Combine.ModeRGB == mode) + return; + 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; + } + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.ModeRGB = 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; + if (texUnit->Combine.ModeA == mode) + return; + 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; + } + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.ModeA = 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 (texUnit->Combine.SourceRGB[s] == source) + return; + 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 */ + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.SourceRGB[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 (texUnit->Combine.SourceA[s] == source) + return; + 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 */ + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.SourceA[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; + if (texUnit->Combine.OperandRGB[s] == operand) + return; + switch (operand) { + case GL_SRC_COLOR: + case GL_ONE_MINUS_SRC_COLOR: + case GL_SRC_ALPHA: + case GL_ONE_MINUS_SRC_ALPHA: + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.OperandRGB[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; + if (texUnit->Combine.OperandA[pname-GL_OPERAND0_ALPHA] == operand) + return; + switch (operand) { + case GL_SRC_ALPHA: + case GL_ONE_MINUS_SRC_ALPHA: + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.OperandA[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.ARB_texture_env_combine) { + const GLenum operand = (GLenum) (GLint) *param; + if (texUnit->Combine.OperandRGB[2] == operand) + return; + 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 */ + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.OperandRGB[2] = operand; + break; + default: + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); + return; + } + } + else if (ctx->Extensions.EXT_texture_env_combine) { + const GLenum operand = (GLenum) (GLint) *param; + if (texUnit->Combine.OperandRGB[2] == operand) + return; + /* operand must be GL_SRC_ALPHA which is the initial value - thus + don't need to actually compare the operand to the possible value */ + else { + 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.ARB_texture_env_combine) { + const GLenum operand = (GLenum) (GLint) *param; + if (texUnit->Combine.OperandA[2] == operand) + return; + switch (operand) { + case GL_SRC_ALPHA: + case GL_ONE_MINUS_SRC_ALPHA: /* ARB combine only */ + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.OperandA[2] = operand; + break; + default: + TE_ERROR(GL_INVALID_ENUM, "glTexEnv(param=%s)", operand); + return; + } + } + else if (ctx->Extensions.EXT_texture_env_combine) { + const GLenum operand = (GLenum) (GLint) *param; + if (texUnit->Combine.OperandA[2] == operand) + return; + /* operand must be GL_SRC_ALPHA which is the initial value - thus + don't need to actually compare the operand to the possible value */ + else { + 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->Combine.ScaleShiftRGB == newshift) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.ScaleShiftRGB = 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->Combine.ScaleShiftA == newshift) + return; + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texUnit->Combine.ScaleShiftA = 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 = param[0]; + } + 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 GLAPIENTRY +_mesa_TexEnvf( GLenum target, GLenum pname, GLfloat param ) +{ + _mesa_TexEnvfv( target, pname, ¶m ); +} + + + +void GLAPIENTRY +_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 GLAPIENTRY +_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 GLAPIENTRY +_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->Combine.ModeRGB; + } + 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->Combine.ModeA; + } + 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->Combine.SourceRGB[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->Combine.SourceRGB[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->Combine.SourceRGB[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->Combine.SourceA[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->Combine.SourceA[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->Combine.SourceA[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->Combine.OperandRGB[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->Combine.OperandRGB[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->Combine.OperandRGB[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->Combine.OperandA[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->Combine.OperandA[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->Combine.OperandA[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->Combine.ScaleShiftRGB == 0) + *params = 1.0; + else if (texUnit->Combine.ScaleShiftRGB == 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->Combine.ScaleShiftA == 0) + *params = 1.0; + else if (texUnit->Combine.ScaleShiftA == 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 GLAPIENTRY +_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->Combine.ModeRGB; + } + 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->Combine.ModeA; + } + 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->Combine.SourceRGB[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->Combine.SourceRGB[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->Combine.SourceRGB[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->Combine.SourceA[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->Combine.SourceA[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->Combine.SourceA[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->Combine.OperandRGB[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->Combine.OperandRGB[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->Combine.OperandRGB[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->Combine.OperandA[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->Combine.OperandA[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->Combine.OperandA[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->Combine.ScaleShiftRGB == 0) + *params = 1; + else if (texUnit->Combine.ScaleShiftRGB == 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->Combine.ScaleShiftA == 0) + *params = 1; + else if (texUnit->Combine.ScaleShiftA == 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 */ +/**********************************************************************/ + +static GLboolean +_mesa_validate_texture_wrap_mode(GLcontext * ctx, + GLenum target, GLenum eparam) +{ + const struct gl_extensions * const e = & ctx->Extensions; + + if (eparam == GL_CLAMP || eparam == GL_CLAMP_TO_EDGE || + (eparam == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) { + /* any texture target */ + return GL_TRUE; + } + else if (target != GL_TEXTURE_RECTANGLE_NV && + (eparam == GL_REPEAT || + (eparam == GL_MIRRORED_REPEAT && + e->ARB_texture_mirrored_repeat) || + (eparam == GL_MIRROR_CLAMP_EXT && + (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || + (eparam == GL_MIRROR_CLAMP_TO_EDGE_EXT && + (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || + (eparam == GL_MIRROR_CLAMP_TO_BORDER_EXT && + (e->EXT_texture_mirror_clamp)))) { + /* non-rectangle texture */ + return GL_TRUE; + } + + _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); + return GL_FALSE; +} + + +void GLAPIENTRY +_mesa_TexParameterf( GLenum target, GLenum pname, GLfloat param ) +{ + _mesa_TexParameterfv(target, pname, ¶m); +} + + +void GLAPIENTRY +_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 (_mesa_validate_texture_wrap_mode(ctx, texObj->Target, eparam)) { + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texObj->WrapS = eparam; + } + else { + return; + } + break; + case GL_TEXTURE_WRAP_T: + if (texObj->WrapT == eparam) + return; + if (_mesa_validate_texture_wrap_mode(ctx, texObj->Target, eparam)) { + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texObj->WrapT = eparam; + } + else { + return; + } + break; + case GL_TEXTURE_WRAP_R: + if (texObj->WrapR == eparam) + return; + if (_mesa_validate_texture_wrap_mode(ctx, texObj->Target, eparam)) { + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texObj->WrapR = eparam; + } + else { + return; + } + 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); + /* clamp to max, that's what NVIDIA does */ + texObj->MaxAnisotropy = MIN2(params[0], + ctx->Const.MaxTextureMaxAnisotropy); + } + 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) { + if (texObj->LodBias != params[0]) { + FLUSH_VERTICES(ctx, _NEW_TEXTURE); + texObj->LodBias = params[0]; + } + } + 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 GLAPIENTRY +_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 GLAPIENTRY +_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 GLAPIENTRY +_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 GLAPIENTRY +_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_TEXTURE_DEPTH_SIZE_ARB: + if (ctx->Extensions.SGIX_depth_texture || + ctx->Extensions.ARB_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; + + /* GL_ARB_texture_float */ + case GL_TEXTURE_RED_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = img->TexFormat->RedBits ? img->TexFormat->DataType : GL_NONE; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname)"); + } + return; + case GL_TEXTURE_GREEN_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = img->TexFormat->GreenBits ? img->TexFormat->DataType : GL_NONE; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname)"); + } + return; + case GL_TEXTURE_BLUE_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = img->TexFormat->BlueBits ? img->TexFormat->DataType : GL_NONE; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname)"); + } + return; + case GL_TEXTURE_ALPHA_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = img->TexFormat->AlphaBits ? img->TexFormat->DataType : GL_NONE; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname)"); + } + return; + case GL_TEXTURE_LUMINANCE_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = img->TexFormat->LuminanceBits ? img->TexFormat->DataType : GL_NONE; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname)"); + } + return; + case GL_TEXTURE_INTENSITY_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = img->TexFormat->IntensityBits ? img->TexFormat->DataType : GL_NONE; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname)"); + } + return; + case GL_TEXTURE_DEPTH_TYPE_ARB: + if (ctx->Extensions.ARB_texture_float) { + *params = img->TexFormat->DepthBits ? img->TexFormat->DataType : GL_NONE; + } + else { + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname)"); + } + return; + default: + _mesa_error(ctx, GL_INVALID_ENUM, + "glGetTexLevelParameter[if]v(pname)"); + } +} + + + +void GLAPIENTRY +_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; + return; + } + 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 GLAPIENTRY +_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; + 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; + case GL_TEXTURE_LOD_BIAS: + if (ctx->Extensions.EXT_texture_lod_bias) { + *params = (GLint) obj->LodBias; + 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 GLAPIENTRY +_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 (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) { + _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 (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) { + _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 (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) { + _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 (_math_matrix_is_dirty(ctx->ModelviewMatrixStack.Top)) { + _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 GLAPIENTRY +_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 GLAPIENTRY +_mesa_TexGend(GLenum coord, GLenum pname, GLdouble param ) +{ + GLfloat p = (GLfloat) param; + _mesa_TexGenfv( coord, pname, &p ); +} + + +void GLAPIENTRY +_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 GLAPIENTRY +_mesa_TexGenf( GLenum coord, GLenum pname, GLfloat param ) +{ + _mesa_TexGenfv(coord, pname, ¶m); +} + + +void GLAPIENTRY +_mesa_TexGeni( GLenum coord, GLenum pname, GLint param ) +{ + _mesa_TexGeniv( coord, pname, ¶m ); +} + + + +void GLAPIENTRY +_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 GLAPIENTRY +_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 GLAPIENTRY +_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 GLAPIENTRY +_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 GLAPIENTRY +_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 GLAPIENTRY +_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 GLAPIENTRY +_mesa_PixelTexGenParameterfSGIS(GLenum target, GLfloat value) +{ + _mesa_PixelTexGenParameteriSGIS(target, (GLint) value); +} + + +void GLAPIENTRY +_mesa_PixelTexGenParameterfvSGIS(GLenum target, const GLfloat *value) +{ + _mesa_PixelTexGenParameteriSGIS(target, (GLint) *value); +} + + +void GLAPIENTRY +_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 GLAPIENTRY +_mesa_PixelTexGenParameterivSGIS(GLenum target, const GLint *value) +{ + _mesa_PixelTexGenParameteriSGIS(target, *value); +} + + +void GLAPIENTRY +_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 GLAPIENTRY +_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 (_math_matrix_is_dirty(ctx->TextureMatrixStack[i].Top)) { + _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->NewState |= _NEW_TEXTURE; /* TODO: only set this if there are + * actual changes. + */ + + 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->_Current = NULL; + texUnit->_ReallyEnabled = 0; + texUnit->_GenFlags = 0; + + /* Get the bitmask of texture enables */ + if (ctx->FragmentProgram._Enabled) { + 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 (enableBits & 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 && (enableBits & 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 && (enableBits & 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 && (enableBits & 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 && (enableBits & 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) { + continue; + } + + if (texUnit->_ReallyEnabled) + ctx->Texture._EnabledUnits |= (1 << unit); + + if (texUnit->EnvMode == GL_COMBINE) { + texUnit->_CurrentCombine = & texUnit->Combine; + } + else { + GLenum format = texUnit->_Current->Image[0][0]->Format; + if (format == GL_COLOR_INDEX) { + format = GL_RGBA; /* a bit of a hack */ + } + else if (format == GL_DEPTH_COMPONENT) { + format = texUnit->_Current->DepthMode; + } + calculate_derived_texenv(&texUnit->_EnvMode, texUnit->EnvMode, format); + texUnit->_CurrentCombine = & texUnit->_EnvMode; + } + + switch (texUnit->_CurrentCombine->ModeRGB) { + case GL_REPLACE: + texUnit->_CurrentCombine->_NumArgsRGB = 1; + break; + case GL_MODULATE: + case GL_ADD: + case GL_ADD_SIGNED: + case GL_SUBTRACT: + case GL_DOT3_RGB: + case GL_DOT3_RGBA: + case GL_DOT3_RGB_EXT: + case GL_DOT3_RGBA_EXT: + texUnit->_CurrentCombine->_NumArgsRGB = 2; + break; + case GL_INTERPOLATE: + case GL_MODULATE_ADD_ATI: + case GL_MODULATE_SIGNED_ADD_ATI: + case GL_MODULATE_SUBTRACT_ATI: + texUnit->_CurrentCombine->_NumArgsRGB = 3; + break; + default: + texUnit->_CurrentCombine->_NumArgsRGB = 0; + _mesa_problem(ctx, "invalid RGB combine mode in update_texture_state"); + return; + } + + switch (texUnit->_CurrentCombine->ModeA) { + case GL_REPLACE: + texUnit->_CurrentCombine->_NumArgsA = 1; + break; + case GL_MODULATE: + case GL_ADD: + case GL_ADD_SIGNED: + case GL_SUBTRACT: + texUnit->_CurrentCombine->_NumArgsA = 2; + break; + case GL_INTERPOLATE: + case GL_MODULATE_ADD_ATI: + case GL_MODULATE_SIGNED_ADD_ATI: + case GL_MODULATE_SUBTRACT_ATI: + texUnit->_CurrentCombine->_NumArgsA = 3; + break; + default: + texUnit->_CurrentCombine->_NumArgsA = 0; + _mesa_problem(ctx, "invalid Alpha combine mode in update_texture_state"); + break; + } + + 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->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 | _NEW_PROGRAM)) + 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->Combine = default_combine_state; + texUnit->_EnvMode = default_combine_state; + texUnit->_CurrentCombine = & texUnit->_EnvMode; + + 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; i<MAX_TEXTURE_UNITS; i++) + init_texture_unit( ctx, i ); + ctx->Texture.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 ); + + _mesa_TexEnvProgramCacheDestroy( ctx ); +} |