| /* $Id: texstate.c,v 1.39 2001/03/26 19:42:40 brianp Exp $ */ |
| |
| /* |
| * Mesa 3-D graphics library |
| * Version: 3.5 |
| * |
| * Copyright (C) 1999-2001 Brian Paul All Rights Reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included |
| * in all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN |
| * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| |
| #ifdef PC_HEADER |
| #include "all.h" |
| #else |
| #include "glheader.h" |
| #include "colormac.h" |
| #include "context.h" |
| #include "enums.h" |
| #include "extensions.h" |
| #include "macros.h" |
| #include "texobj.h" |
| #include "teximage.h" |
| #include "texstate.h" |
| #include "mtypes.h" |
| #include "math/m_xform.h" |
| #include "math/m_matrix.h" |
| #endif |
| |
| |
| |
| #ifdef SPECIALCAST |
| /* Needed for an Amiga compiler */ |
| #define ENUM_TO_FLOAT(X) ((GLfloat)(GLint)(X)) |
| #define ENUM_TO_DOUBLE(X) ((GLdouble)(GLint)(X)) |
| #else |
| /* all other compilers */ |
| #define ENUM_TO_FLOAT(X) ((GLfloat)(X)) |
| #define ENUM_TO_DOUBLE(X) ((GLdouble)(X)) |
| #endif |
| |
| |
| /* XXX this is temporary, until GL/glext.h is updated. */ |
| #ifndef GL_DOT3_RGB_ARB |
| #define GL_DOT3_RGB_ARB 0x86AE |
| #endif |
| #ifndef GL_DOT3_RGBA_ARB |
| #define GL_DOT3_RGBA_ARB 0x86AF |
| #endif |
| |
| /* XXX this is temporary, until GL/glext.h is updated. */ |
| #ifndef GL_CLAMP_TO_BORDER_ARB |
| #define GL_CLAMP_TO_BORDER_ARB 0x812D |
| #endif |
| |
| |
| /**********************************************************************/ |
| /* Texture Environment */ |
| /**********************************************************************/ |
| |
| |
| void |
| _mesa_TexEnvfv( GLenum target, GLenum pname, const GLfloat *param ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (target==GL_TEXTURE_ENV) { |
| switch (pname) { |
| case GL_TEXTURE_ENV_MODE: { |
| GLenum mode = (GLenum) (GLint) *param; |
| |
| switch (mode) { |
| case GL_ADD: |
| if (!ctx->Extensions.EXT_texture_env_add) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)"); |
| return; |
| } |
| break; |
| case GL_COMBINE_EXT: |
| if (!ctx->Extensions.EXT_texture_env_combine) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)"); |
| return; |
| } |
| break; |
| case GL_MODULATE: |
| case GL_BLEND: |
| case GL_DECAL: |
| case GL_REPLACE: |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); |
| return; |
| } |
| |
| if (texUnit->EnvMode == mode) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->EnvMode = mode; |
| break; |
| } |
| case GL_TEXTURE_ENV_COLOR: { |
| GLfloat tmp[4]; |
| tmp[0] = CLAMP( param[0], 0.0F, 1.0F ); |
| tmp[1] = CLAMP( param[1], 0.0F, 1.0F ); |
| tmp[2] = CLAMP( param[2], 0.0F, 1.0F ); |
| tmp[3] = CLAMP( param[3], 0.0F, 1.0F ); |
| if (TEST_EQ_4V(tmp, texUnit->EnvColor)) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| COPY_4FV(texUnit->EnvColor, tmp); |
| break; |
| } |
| case GL_COMBINE_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLenum mode = (GLenum) (GLint) *param; |
| switch (mode) { |
| case GL_REPLACE: |
| case GL_MODULATE: |
| case GL_ADD: |
| case GL_ADD_SIGNED_EXT: |
| case GL_INTERPOLATE_EXT: |
| break; |
| case GL_DOT3_RGB_EXT: |
| case GL_DOT3_RGBA_EXT: |
| case GL_DOT3_RGB_ARB: |
| case GL_DOT3_RGBA_ARB: |
| if (!ctx->Extensions.EXT_texture_env_dot3) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(param)"); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); |
| return; |
| } |
| if (texUnit->CombineModeRGB == mode) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->CombineModeRGB = mode; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| case GL_COMBINE_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLenum mode = (GLenum) (GLint) *param; |
| switch (mode) { |
| case GL_REPLACE: |
| case GL_MODULATE: |
| case GL_ADD: |
| case GL_ADD_SIGNED_EXT: |
| case GL_INTERPOLATE_EXT: |
| if (texUnit->CombineModeA == mode) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->CombineModeA = mode; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); |
| return; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| break; |
| case GL_SOURCE0_RGB_EXT: |
| case GL_SOURCE1_RGB_EXT: |
| case GL_SOURCE2_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLenum source = (GLenum) (GLint) *param; |
| GLuint s = pname - GL_SOURCE0_RGB_EXT; |
| switch (source) { |
| case GL_TEXTURE: |
| case GL_CONSTANT_EXT: |
| case GL_PRIMARY_COLOR_EXT: |
| case GL_PREVIOUS_EXT: |
| if (texUnit->CombineSourceRGB[s] == source) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->CombineSourceRGB[s] = source; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); |
| return; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| break; |
| case GL_SOURCE0_ALPHA_EXT: |
| case GL_SOURCE1_ALPHA_EXT: |
| case GL_SOURCE2_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLenum source = (GLenum) (GLint) *param; |
| GLuint s = pname - GL_SOURCE0_ALPHA_EXT; |
| switch (source) { |
| case GL_TEXTURE: |
| case GL_CONSTANT_EXT: |
| case GL_PRIMARY_COLOR_EXT: |
| case GL_PREVIOUS_EXT: |
| if (texUnit->CombineSourceA[s] == source) return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->CombineSourceA[s] = source; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); |
| return; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| break; |
| case GL_OPERAND0_RGB_EXT: |
| case GL_OPERAND1_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLenum operand = (GLenum) (GLint) *param; |
| GLuint s = pname - GL_OPERAND0_RGB_EXT; |
| switch (operand) { |
| case GL_SRC_COLOR: |
| case GL_ONE_MINUS_SRC_COLOR: |
| case GL_SRC_ALPHA: |
| case GL_ONE_MINUS_SRC_ALPHA: |
| if (texUnit->CombineOperandRGB[s] == operand) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->CombineOperandRGB[s] = operand; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); |
| return; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| break; |
| case GL_OPERAND0_ALPHA_EXT: |
| case GL_OPERAND1_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLenum operand = (GLenum) (GLint) *param; |
| switch (operand) { |
| case GL_SRC_ALPHA: |
| case GL_ONE_MINUS_SRC_ALPHA: |
| if (texUnit->CombineOperandA[pname-GL_OPERAND0_ALPHA_EXT] == |
| operand) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->CombineOperandA[pname-GL_OPERAND0_ALPHA_EXT] = operand; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); |
| return; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| break; |
| case GL_OPERAND2_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLenum operand = (GLenum) (GLint) *param; |
| switch (operand) { |
| case GL_SRC_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; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); |
| return; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| break; |
| case GL_OPERAND2_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLenum operand = (GLenum) (GLint) *param; |
| switch (operand) { |
| case GL_SRC_ALPHA: |
| 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: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); |
| return; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| break; |
| case GL_RGB_SCALE_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLuint newshift; |
| if (*param == 1.0) { |
| newshift = 0; |
| } |
| else if (*param == 2.0) { |
| newshift = 1; |
| } |
| else if (*param == 4.0) { |
| newshift = 2; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); |
| return; |
| } |
| if (texUnit->CombineScaleShiftRGB == newshift) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->CombineScaleShiftRGB = newshift; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| break; |
| case GL_ALPHA_SCALE: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| GLuint newshift; |
| if (*param == 1.0) { |
| newshift = 0; |
| } |
| else if (*param == 2.0) { |
| newshift = 1; |
| } |
| else if (*param == 4.0) { |
| newshift = 2; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" ); |
| return; |
| } |
| if (texUnit->CombineScaleShiftA == newshift) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->CombineScaleShiftA = newshift; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexEnv(pname)"); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); |
| return; |
| } |
| } |
| else if (target==GL_TEXTURE_FILTER_CONTROL_EXT) { |
| if (!ctx->Extensions.EXT_texture_lod_bias) { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(param)" ); |
| return; |
| } |
| switch (pname) { |
| case GL_TEXTURE_LOD_BIAS_EXT: |
| if (texUnit->LodBias == param[0]) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->LodBias = param[0]; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" ); |
| return; |
| } |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexEnv(target)" ); |
| return; |
| } |
| |
| if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE)) |
| fprintf(stderr, "glTexEnv %s %s %.1f(%s) ...\n", |
| _mesa_lookup_enum_by_nr(target), |
| _mesa_lookup_enum_by_nr(pname), |
| *param, |
| _mesa_lookup_enum_by_nr((GLenum) (GLint) *param)); |
| |
| /* Tell device driver about the new texture environment */ |
| if (ctx->Driver.TexEnv) { |
| (*ctx->Driver.TexEnv)( ctx, target, pname, param ); |
| } |
| } |
| |
| |
| void |
| _mesa_TexEnvf( GLenum target, GLenum pname, GLfloat param ) |
| { |
| _mesa_TexEnvfv( target, pname, ¶m ); |
| } |
| |
| |
| |
| void |
| _mesa_TexEnvi( GLenum target, GLenum pname, GLint param ) |
| { |
| GLfloat p[4]; |
| p[0] = (GLfloat) param; |
| p[1] = p[2] = p[3] = 0.0; |
| _mesa_TexEnvfv( target, pname, p ); |
| } |
| |
| |
| void |
| _mesa_TexEnviv( GLenum target, GLenum pname, const GLint *param ) |
| { |
| GLfloat p[4]; |
| p[0] = INT_TO_FLOAT( param[0] ); |
| p[1] = INT_TO_FLOAT( param[1] ); |
| p[2] = INT_TO_FLOAT( param[2] ); |
| p[3] = INT_TO_FLOAT( param[3] ); |
| _mesa_TexEnvfv( target, pname, p ); |
| } |
| |
| |
| void |
| _mesa_GetTexEnvfv( GLenum target, GLenum pname, GLfloat *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (target!=GL_TEXTURE_ENV) { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(target)" ); |
| return; |
| } |
| |
| switch (pname) { |
| case GL_TEXTURE_ENV_MODE: |
| *params = ENUM_TO_FLOAT(texUnit->EnvMode); |
| break; |
| case GL_TEXTURE_ENV_COLOR: |
| COPY_4FV( params, texUnit->EnvColor ); |
| break; |
| case GL_RGB_SCALE_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| if (texUnit->CombineScaleShiftRGB == 0) |
| *params = 1.0; |
| else if (texUnit->CombineScaleShiftRGB == 1) |
| *params = 2.0; |
| else |
| *params = 4.0; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); |
| return; |
| } |
| break; |
| case GL_ALPHA_SCALE: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| if (texUnit->CombineScaleShiftA == 0) |
| *params = 1.0; |
| else if (texUnit->CombineScaleShiftA == 1) |
| *params = 2.0; |
| else |
| *params = 4.0; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)"); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)" ); |
| } |
| } |
| |
| |
| void |
| _mesa_GetTexEnviv( GLenum target, GLenum pname, GLint *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (target != GL_TEXTURE_ENV) { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(target)" ); |
| return; |
| } |
| |
| switch (pname) { |
| case GL_TEXTURE_ENV_MODE: |
| *params = (GLint) texUnit->EnvMode; |
| break; |
| case GL_TEXTURE_ENV_COLOR: |
| params[0] = FLOAT_TO_INT( texUnit->EnvColor[0] ); |
| params[1] = FLOAT_TO_INT( texUnit->EnvColor[1] ); |
| params[2] = FLOAT_TO_INT( texUnit->EnvColor[2] ); |
| params[3] = FLOAT_TO_INT( texUnit->EnvColor[3] ); |
| break; |
| case GL_COMBINE_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineModeRGB; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_COMBINE_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineModeA; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_SOURCE0_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineSourceRGB[0]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_SOURCE1_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineSourceRGB[1]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_SOURCE2_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineSourceRGB[2]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_SOURCE0_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineSourceA[0]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_SOURCE1_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineSourceA[1]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_SOURCE2_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineSourceA[2]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_OPERAND0_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineOperandRGB[0]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_OPERAND1_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineOperandRGB[1]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_OPERAND2_RGB_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineOperandRGB[2]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_OPERAND0_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineOperandA[0]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_OPERAND1_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineOperandA[1]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| case GL_OPERAND2_ALPHA_EXT: |
| if (ctx->Extensions.EXT_texture_env_combine) { |
| *params = (GLint) texUnit->CombineOperandA[2]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)"); |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)" ); |
| } |
| } |
| |
| |
| |
| |
| /**********************************************************************/ |
| /* Texture Parameters */ |
| /**********************************************************************/ |
| |
| |
| void |
| _mesa_TexParameterf( GLenum target, GLenum pname, GLfloat param ) |
| { |
| _mesa_TexParameterfv(target, pname, ¶m); |
| } |
| |
| |
| void |
| _mesa_TexParameterfv( GLenum target, GLenum pname, const GLfloat *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| GLenum eparam = (GLenum) (GLint) params[0]; |
| struct gl_texture_object *texObj; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE)) |
| fprintf(stderr, "texPARAM %s %s %d...\n", |
| _mesa_lookup_enum_by_nr(target), |
| _mesa_lookup_enum_by_nr(pname), |
| eparam); |
| |
| |
| switch (target) { |
| case GL_TEXTURE_1D: |
| texObj = texUnit->Current1D; |
| break; |
| case GL_TEXTURE_2D: |
| texObj = texUnit->Current2D; |
| break; |
| case GL_TEXTURE_3D_EXT: |
| texObj = texUnit->Current3D; |
| break; |
| case GL_TEXTURE_CUBE_MAP_ARB: |
| if (ctx->Extensions.ARB_texture_cube_map) { |
| texObj = texUnit->CurrentCubeMap; |
| break; |
| } |
| /* fallthrough */ |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" ); |
| return; |
| } |
| |
| switch (pname) { |
| case GL_TEXTURE_MIN_FILTER: |
| /* A small optimization */ |
| if (texObj->MinFilter == eparam) |
| return; |
| |
| if (eparam==GL_NEAREST || eparam==GL_LINEAR |
| || eparam==GL_NEAREST_MIPMAP_NEAREST |
| || eparam==GL_LINEAR_MIPMAP_NEAREST |
| || eparam==GL_NEAREST_MIPMAP_LINEAR |
| || eparam==GL_LINEAR_MIPMAP_LINEAR) { |
| texObj->MinFilter = eparam; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| return; |
| } |
| break; |
| case GL_TEXTURE_MAG_FILTER: |
| /* A small optimization */ |
| if (texObj->MagFilter == eparam) |
| return; |
| |
| if (eparam==GL_NEAREST || eparam==GL_LINEAR) { |
| texObj->MagFilter = eparam; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| return; |
| } |
| break; |
| case GL_TEXTURE_WRAP_S: |
| if (texObj->WrapS == eparam) |
| return; |
| if (eparam==GL_CLAMP || |
| eparam==GL_REPEAT || |
| eparam==GL_CLAMP_TO_EDGE || |
| (eparam == GL_CLAMP_TO_BORDER_ARB && |
| ctx->Extensions.ARB_texture_border_clamp)) { |
| texObj->WrapS = eparam; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| return; |
| } |
| break; |
| case GL_TEXTURE_WRAP_T: |
| if (texObj->WrapT == eparam) |
| return; |
| if (eparam==GL_CLAMP || |
| eparam==GL_REPEAT || |
| eparam==GL_CLAMP_TO_EDGE || |
| (eparam == GL_CLAMP_TO_BORDER_ARB && |
| ctx->Extensions.ARB_texture_border_clamp)) { |
| texObj->WrapT = eparam; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| return; |
| } |
| break; |
| case GL_TEXTURE_WRAP_R_EXT: |
| if (texObj->WrapR == eparam) |
| return; |
| if (eparam==GL_CLAMP || |
| eparam==GL_REPEAT || |
| eparam==GL_CLAMP_TO_EDGE || |
| (eparam == GL_CLAMP_TO_BORDER_ARB && |
| ctx->Extensions.ARB_texture_border_clamp)) { |
| texObj->WrapR = eparam; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| } |
| break; |
| case GL_TEXTURE_BORDER_COLOR: |
| UNCLAMPED_FLOAT_TO_CHAN(texObj->BorderColor[0], params[0]); |
| UNCLAMPED_FLOAT_TO_CHAN(texObj->BorderColor[1], params[1]); |
| UNCLAMPED_FLOAT_TO_CHAN(texObj->BorderColor[2], params[2]); |
| UNCLAMPED_FLOAT_TO_CHAN(texObj->BorderColor[3], params[3]); |
| break; |
| case GL_TEXTURE_MIN_LOD: |
| texObj->MinLod = params[0]; |
| break; |
| case GL_TEXTURE_MAX_LOD: |
| texObj->MaxLod = params[0]; |
| break; |
| case GL_TEXTURE_BASE_LEVEL: |
| if (params[0] < 0.0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| return; |
| } |
| texObj->BaseLevel = (GLint) params[0]; |
| break; |
| case GL_TEXTURE_MAX_LEVEL: |
| if (params[0] < 0.0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| return; |
| } |
| texObj->MaxLevel = (GLint) params[0]; |
| break; |
| case GL_TEXTURE_PRIORITY: |
| /* (keithh@netcomuk.co.uk) */ |
| texObj->Priority = CLAMP( params[0], 0.0F, 1.0F ); |
| break; |
| case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
| if (ctx->Extensions.EXT_texture_filter_anisotropic) { |
| if (params[0] < 1.0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| return; |
| } |
| texObj->MaxAnisotropy = params[0]; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname)"); |
| return; |
| } |
| break; |
| case GL_TEXTURE_COMPARE_SGIX: |
| if (ctx->Extensions.SGIX_shadow) { |
| texObj->CompareFlag = params[0] ? GL_TRUE : GL_FALSE; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname)"); |
| return; |
| } |
| break; |
| case GL_TEXTURE_COMPARE_OPERATOR_SGIX: |
| if (ctx->Extensions.SGIX_shadow) { |
| GLenum op = (GLenum) params[0]; |
| if (op == GL_TEXTURE_LEQUAL_R_SGIX || |
| op == GL_TEXTURE_GEQUAL_R_SGIX) { |
| texObj->CompareOperator = op; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param)"); |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname)"); |
| return; |
| } |
| break; |
| case GL_SHADOW_AMBIENT_SGIX: |
| if (ctx->Extensions.SGIX_shadow_ambient) { |
| UNCLAMPED_FLOAT_TO_CHAN(texObj->ShadowAmbient, params[0]); |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname)"); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(pname)" ); |
| return; |
| } |
| |
| ctx->NewState |= _NEW_TEXTURE; |
| texObj->Complete = GL_FALSE; |
| |
| if (ctx->Driver.TexParameter) { |
| (*ctx->Driver.TexParameter)( ctx, target, texObj, pname, params ); |
| } |
| } |
| |
| |
| void |
| _mesa_TexParameteri( GLenum target, GLenum pname, const GLint param ) |
| { |
| GLfloat fparam[4]; |
| fparam[0] = (GLfloat) param; |
| fparam[1] = fparam[2] = fparam[3] = 0.0; |
| _mesa_TexParameterfv(target, pname, fparam); |
| } |
| |
| void |
| _mesa_TexParameteriv( GLenum target, GLenum pname, const GLint *params ) |
| { |
| GLfloat fparam[4]; |
| fparam[0] = (GLfloat) params[0]; |
| fparam[1] = fparam[2] = fparam[3] = 0.0; |
| _mesa_TexParameterfv(target, pname, fparam); |
| } |
| |
| |
| void |
| _mesa_GetTexLevelParameterfv( GLenum target, GLint level, |
| GLenum pname, GLfloat *params ) |
| { |
| GLint iparam; |
| _mesa_GetTexLevelParameteriv( target, level, pname, &iparam ); |
| *params = (GLfloat) iparam; |
| } |
| |
| |
| static GLuint |
| tex_image_dimensions(GLcontext *ctx, GLenum target) |
| { |
| switch (target) { |
| case GL_TEXTURE_1D: |
| case GL_PROXY_TEXTURE_1D: |
| return 1; |
| case GL_TEXTURE_2D: |
| case GL_PROXY_TEXTURE_2D: |
| return 2; |
| case GL_TEXTURE_3D: |
| case GL_PROXY_TEXTURE_3D: |
| return 3; |
| case GL_TEXTURE_CUBE_MAP_ARB: |
| case GL_PROXY_TEXTURE_CUBE_MAP_ARB: |
| return ctx->Extensions.ARB_texture_cube_map ? 2 : 0; |
| default: |
| _mesa_problem(ctx, "bad target in _mesa_tex_target_dimensions()"); |
| return 0; |
| } |
| } |
| |
| |
| void |
| _mesa_GetTexLevelParameteriv( GLenum target, GLint level, |
| GLenum pname, GLint *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| const struct gl_texture_image *img = NULL; |
| GLuint dimensions; |
| GLboolean isProxy; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (level < 0 || level >= ctx->Const.MaxTextureLevels) { |
| _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); |
| return; |
| } |
| |
| dimensions = tex_image_dimensions(ctx, target); /* 1, 2 or 3 */ |
| if (dimensions == 0) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(target)"); |
| return; |
| } |
| |
| img = _mesa_select_tex_image(ctx, texUnit, target, level); |
| if (!img) { |
| if (pname == GL_TEXTURE_COMPONENTS) |
| *params = 1; |
| else |
| *params = 0; |
| return; |
| } |
| |
| isProxy = (target == GL_PROXY_TEXTURE_1D) || |
| (target == GL_PROXY_TEXTURE_2D) || |
| (target == GL_PROXY_TEXTURE_3D) || |
| (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB); |
| |
| switch (pname) { |
| case GL_TEXTURE_WIDTH: |
| *params = img->Width; |
| return; |
| case GL_TEXTURE_HEIGHT: |
| *params = img->Height; |
| return; |
| case GL_TEXTURE_DEPTH: |
| *params = img->Depth; |
| return; |
| case GL_TEXTURE_COMPONENTS: |
| *params = img->IntFormat; |
| return; |
| case GL_TEXTURE_BORDER: |
| *params = img->Border; |
| return; |
| case GL_TEXTURE_RED_SIZE: |
| *params = img->TexFormat->RedBits; |
| return; |
| case GL_TEXTURE_GREEN_SIZE: |
| *params = img->TexFormat->GreenBits; |
| return; |
| case GL_TEXTURE_BLUE_SIZE: |
| *params = img->TexFormat->BlueBits; |
| return; |
| case GL_TEXTURE_ALPHA_SIZE: |
| *params = img->TexFormat->AlphaBits; |
| return; |
| case GL_TEXTURE_INTENSITY_SIZE: |
| *params = img->TexFormat->IntensityBits; |
| return; |
| case GL_TEXTURE_LUMINANCE_SIZE: |
| *params = img->TexFormat->LuminanceBits; |
| return; |
| case GL_TEXTURE_INDEX_SIZE_EXT: |
| *params = img->TexFormat->IndexBits; |
| return; |
| case GL_DEPTH_BITS: |
| /* XXX this isn't in the GL_SGIX_depth_texture spec |
| * but seems appropriate. |
| */ |
| if (ctx->Extensions.SGIX_depth_texture) |
| *params = img->TexFormat->DepthBits; |
| else |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); |
| return; |
| |
| /* GL_ARB_texture_compression */ |
| case GL_TEXTURE_COMPRESSED_IMAGE_SIZE_ARB: |
| if (ctx->Extensions.ARB_texture_compression) { |
| if (img->IsCompressed && !isProxy) |
| *params = img->CompressedSize; |
| else |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glGetTexLevelParameter[if]v(pname)"); |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); |
| } |
| return; |
| case GL_TEXTURE_COMPRESSED_ARB: |
| if (ctx->Extensions.ARB_texture_compression) { |
| *params = (GLint) img->IsCompressed; |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); |
| } |
| return; |
| |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); |
| } |
| } |
| |
| |
| |
| void |
| _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| struct gl_texture_object *obj; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| obj = _mesa_select_tex_object(ctx, texUnit, target); |
| if (!obj) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(target)"); |
| return; |
| } |
| |
| switch (pname) { |
| case GL_TEXTURE_MAG_FILTER: |
| *params = ENUM_TO_FLOAT(obj->MagFilter); |
| break; |
| case GL_TEXTURE_MIN_FILTER: |
| *params = ENUM_TO_FLOAT(obj->MinFilter); |
| break; |
| case GL_TEXTURE_WRAP_S: |
| *params = ENUM_TO_FLOAT(obj->WrapS); |
| break; |
| case GL_TEXTURE_WRAP_T: |
| *params = ENUM_TO_FLOAT(obj->WrapT); |
| break; |
| case GL_TEXTURE_WRAP_R_EXT: |
| *params = ENUM_TO_FLOAT(obj->WrapR); |
| break; |
| case GL_TEXTURE_BORDER_COLOR: |
| params[0] = obj->BorderColor[0] / CHAN_MAXF; |
| params[1] = obj->BorderColor[1] / CHAN_MAXF; |
| params[2] = obj->BorderColor[2] / CHAN_MAXF; |
| params[3] = obj->BorderColor[3] / CHAN_MAXF; |
| break; |
| case GL_TEXTURE_RESIDENT: |
| { |
| GLboolean resident; |
| if (ctx->Driver.IsTextureResident) |
| resident = ctx->Driver.IsTextureResident(ctx, obj); |
| else |
| resident = GL_TRUE; |
| *params = ENUM_TO_FLOAT(resident); |
| } |
| break; |
| case GL_TEXTURE_PRIORITY: |
| *params = obj->Priority; |
| break; |
| case GL_TEXTURE_MIN_LOD: |
| *params = obj->MinLod; |
| break; |
| case GL_TEXTURE_MAX_LOD: |
| *params = obj->MaxLod; |
| break; |
| case GL_TEXTURE_BASE_LEVEL: |
| *params = (GLfloat) obj->BaseLevel; |
| break; |
| case GL_TEXTURE_MAX_LEVEL: |
| *params = (GLfloat) obj->MaxLevel; |
| break; |
| case GL_TEXTURE_COMPARE_SGIX: |
| if (ctx->Extensions.SGIX_shadow) { |
| *params = (GLfloat) obj->CompareFlag; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" ); |
| return; |
| } |
| break; |
| case GL_TEXTURE_COMPARE_OPERATOR_SGIX: |
| if (ctx->Extensions.SGIX_shadow) { |
| *params = (GLfloat) obj->CompareOperator; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" ); |
| return; |
| } |
| break; |
| case GL_SHADOW_AMBIENT_SGIX: |
| if (ctx->Extensions.SGIX_shadow_ambient) { |
| *params = CHAN_TO_FLOAT(obj->ShadowAmbient); |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)"); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" ); |
| } |
| } |
| |
| |
| void |
| _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| struct gl_texture_object *obj; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| obj = _mesa_select_tex_object(ctx, texUnit, target); |
| if (!obj) { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(target)"); |
| return; |
| } |
| |
| switch (pname) { |
| case GL_TEXTURE_MAG_FILTER: |
| *params = (GLint) obj->MagFilter; |
| break; |
| case GL_TEXTURE_MIN_FILTER: |
| *params = (GLint) obj->MinFilter; |
| break; |
| case GL_TEXTURE_WRAP_S: |
| *params = (GLint) obj->WrapS; |
| break; |
| case GL_TEXTURE_WRAP_T: |
| *params = (GLint) obj->WrapT; |
| break; |
| case GL_TEXTURE_WRAP_R_EXT: |
| *params = (GLint) obj->WrapR; |
| break; |
| case GL_TEXTURE_BORDER_COLOR: |
| { |
| GLfloat color[4]; |
| color[0] = obj->BorderColor[0] / CHAN_MAXF; |
| color[1] = obj->BorderColor[1] / CHAN_MAXF; |
| color[2] = obj->BorderColor[2] / CHAN_MAXF; |
| color[3] = obj->BorderColor[3] / CHAN_MAXF; |
| params[0] = FLOAT_TO_INT( color[0] ); |
| params[1] = FLOAT_TO_INT( color[1] ); |
| params[2] = FLOAT_TO_INT( color[2] ); |
| params[3] = FLOAT_TO_INT( color[3] ); |
| } |
| break; |
| case GL_TEXTURE_RESIDENT: |
| { |
| GLboolean resident; |
| if (ctx->Driver.IsTextureResident) |
| resident = ctx->Driver.IsTextureResident(ctx, obj); |
| else |
| resident = GL_TRUE; |
| *params = (GLint) resident; |
| } |
| break; |
| case GL_TEXTURE_PRIORITY: |
| *params = (GLint) obj->Priority; |
| break; |
| case GL_TEXTURE_MIN_LOD: |
| *params = (GLint) obj->MinLod; |
| break; |
| case GL_TEXTURE_MAX_LOD: |
| *params = (GLint) obj->MaxLod; |
| break; |
| case GL_TEXTURE_BASE_LEVEL: |
| *params = obj->BaseLevel; |
| break; |
| case GL_TEXTURE_MAX_LEVEL: |
| *params = obj->MaxLevel; |
| break; |
| case GL_TEXTURE_COMPARE_SGIX: |
| if (ctx->Extensions.SGIX_shadow) { |
| *params = (GLint) obj->CompareFlag; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)" ); |
| return; |
| } |
| break; |
| case GL_TEXTURE_COMPARE_OPERATOR_SGIX: |
| if (ctx->Extensions.SGIX_shadow) { |
| *params = (GLint) obj->CompareOperator; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)" ); |
| return; |
| } |
| break; |
| case GL_SHADOW_AMBIENT_SGIX: |
| if (ctx->Extensions.SGIX_shadow_ambient) { |
| /* XXX range? */ |
| *params = (GLint) CHAN_TO_FLOAT(obj->ShadowAmbient); |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)"); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)" ); |
| } |
| } |
| |
| |
| |
| |
| /**********************************************************************/ |
| /* Texture Coord Generation */ |
| /**********************************************************************/ |
| |
| |
| void |
| _mesa_TexGenfv( GLenum coord, GLenum pname, const GLfloat *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint tUnit = ctx->Texture.CurrentTransformUnit; |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit]; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE)) |
| fprintf(stderr, "texGEN %s %s %x...\n", |
| _mesa_lookup_enum_by_nr(coord), |
| _mesa_lookup_enum_by_nr(pname), |
| *(int *)params); |
| |
| switch (coord) { |
| case GL_S: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| GLenum mode = (GLenum) (GLint) *params; |
| GLuint bits; |
| switch (mode) { |
| case GL_OBJECT_LINEAR: |
| bits = TEXGEN_OBJ_LINEAR; |
| break; |
| case GL_EYE_LINEAR: |
| bits = TEXGEN_EYE_LINEAR; |
| break; |
| case GL_REFLECTION_MAP_NV: |
| bits = TEXGEN_REFLECTION_MAP_NV; |
| break; |
| case GL_NORMAL_MAP_NV: |
| bits = TEXGEN_NORMAL_MAP_NV; |
| break; |
| case GL_SPHERE_MAP: |
| bits = TEXGEN_SPHERE_MAP; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" ); |
| return; |
| } |
| if (texUnit->GenModeS == mode) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->GenModeS = mode; |
| texUnit->_GenBitS = bits; |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| if (TEST_EQ_4V(texUnit->ObjectPlaneS, params)) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->ObjectPlaneS[0] = params[0]; |
| texUnit->ObjectPlaneS[1] = params[1]; |
| texUnit->ObjectPlaneS[2] = params[2]; |
| texUnit->ObjectPlaneS[3] = params[3]; |
| } |
| else if (pname==GL_EYE_PLANE) { |
| GLfloat tmp[4]; |
| |
| /* Transform plane equation by the inverse modelview matrix */ |
| if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) { |
| _math_matrix_analyse( &ctx->ModelView ); |
| } |
| _mesa_transform_vector( tmp, params, ctx->ModelView.inv ); |
| if (TEST_EQ_4V(texUnit->EyePlaneS, tmp)) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| COPY_4FV(texUnit->EyePlaneS, tmp); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" ); |
| return; |
| } |
| break; |
| case GL_T: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| GLenum mode = (GLenum) (GLint) *params; |
| GLuint bitt; |
| switch (mode) { |
| case GL_OBJECT_LINEAR: |
| bitt = TEXGEN_OBJ_LINEAR; |
| break; |
| case GL_EYE_LINEAR: |
| bitt = TEXGEN_EYE_LINEAR; |
| break; |
| case GL_REFLECTION_MAP_NV: |
| bitt = TEXGEN_REFLECTION_MAP_NV; |
| break; |
| case GL_NORMAL_MAP_NV: |
| bitt = TEXGEN_NORMAL_MAP_NV; |
| break; |
| case GL_SPHERE_MAP: |
| bitt = TEXGEN_SPHERE_MAP; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" ); |
| return; |
| } |
| if (texUnit->GenModeT == mode) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->GenModeT = mode; |
| texUnit->_GenBitT = bitt; |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| if (TEST_EQ_4V(texUnit->ObjectPlaneT, params)) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->ObjectPlaneT[0] = params[0]; |
| texUnit->ObjectPlaneT[1] = params[1]; |
| texUnit->ObjectPlaneT[2] = params[2]; |
| texUnit->ObjectPlaneT[3] = params[3]; |
| } |
| else if (pname==GL_EYE_PLANE) { |
| GLfloat tmp[4]; |
| /* Transform plane equation by the inverse modelview matrix */ |
| if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) { |
| _math_matrix_analyse( &ctx->ModelView ); |
| } |
| _mesa_transform_vector( tmp, params, ctx->ModelView.inv ); |
| if (TEST_EQ_4V(texUnit->EyePlaneT, tmp)) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| COPY_4FV(texUnit->EyePlaneT, tmp); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" ); |
| return; |
| } |
| break; |
| case GL_R: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| GLenum mode = (GLenum) (GLint) *params; |
| GLuint bitr; |
| switch (mode) { |
| case GL_OBJECT_LINEAR: |
| bitr = TEXGEN_OBJ_LINEAR; |
| break; |
| case GL_REFLECTION_MAP_NV: |
| bitr = TEXGEN_REFLECTION_MAP_NV; |
| break; |
| case GL_NORMAL_MAP_NV: |
| bitr = TEXGEN_NORMAL_MAP_NV; |
| break; |
| case GL_EYE_LINEAR: |
| bitr = TEXGEN_EYE_LINEAR; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" ); |
| return; |
| } |
| if (texUnit->GenModeR == mode) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->GenModeR = mode; |
| texUnit->_GenBitR = bitr; |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| if (TEST_EQ_4V(texUnit->ObjectPlaneR, params)) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->ObjectPlaneR[0] = params[0]; |
| texUnit->ObjectPlaneR[1] = params[1]; |
| texUnit->ObjectPlaneR[2] = params[2]; |
| texUnit->ObjectPlaneR[3] = params[3]; |
| } |
| else if (pname==GL_EYE_PLANE) { |
| GLfloat tmp[4]; |
| /* Transform plane equation by the inverse modelview matrix */ |
| if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) { |
| _math_matrix_analyse( &ctx->ModelView ); |
| } |
| _mesa_transform_vector( tmp, params, ctx->ModelView.inv ); |
| if (TEST_EQ_4V(texUnit->EyePlaneR, tmp)) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| COPY_4FV(texUnit->EyePlaneR, tmp); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" ); |
| return; |
| } |
| break; |
| case GL_Q: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| GLenum mode = (GLenum) (GLint) *params; |
| GLuint bitq; |
| switch (mode) { |
| case GL_OBJECT_LINEAR: |
| bitq = TEXGEN_OBJ_LINEAR; |
| break; |
| case GL_EYE_LINEAR: |
| bitq = TEXGEN_EYE_LINEAR; |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" ); |
| return; |
| } |
| if (texUnit->GenModeQ == mode) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->GenModeQ = mode; |
| texUnit->_GenBitQ = bitq; |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| if (TEST_EQ_4V(texUnit->ObjectPlaneQ, params)) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texUnit->ObjectPlaneQ[0] = params[0]; |
| texUnit->ObjectPlaneQ[1] = params[1]; |
| texUnit->ObjectPlaneQ[2] = params[2]; |
| texUnit->ObjectPlaneQ[3] = params[3]; |
| } |
| else if (pname==GL_EYE_PLANE) { |
| GLfloat tmp[4]; |
| /* Transform plane equation by the inverse modelview matrix */ |
| if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) { |
| _math_matrix_analyse( &ctx->ModelView ); |
| } |
| _mesa_transform_vector( tmp, params, ctx->ModelView.inv ); |
| if (TEST_EQ_4V(texUnit->EyePlaneQ, tmp)) |
| return; |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| COPY_4FV(texUnit->EyePlaneQ, tmp); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" ); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glTexGenfv(coord)" ); |
| return; |
| } |
| |
| if (ctx->Driver.TexGen) |
| ctx->Driver.TexGen( ctx, coord, pname, params ); |
| } |
| |
| |
| void |
| _mesa_TexGeniv(GLenum coord, GLenum pname, const GLint *params ) |
| { |
| GLfloat p[4]; |
| p[0] = params[0]; |
| p[1] = params[1]; |
| p[2] = params[2]; |
| p[3] = params[3]; |
| _mesa_TexGenfv(coord, pname, p); |
| } |
| |
| |
| void |
| _mesa_TexGend(GLenum coord, GLenum pname, GLdouble param ) |
| { |
| GLfloat p = (GLfloat) param; |
| _mesa_TexGenfv( coord, pname, &p ); |
| } |
| |
| |
| void |
| _mesa_TexGendv(GLenum coord, GLenum pname, const GLdouble *params ) |
| { |
| GLfloat p[4]; |
| p[0] = params[0]; |
| p[1] = params[1]; |
| p[2] = params[2]; |
| p[3] = params[3]; |
| _mesa_TexGenfv( coord, pname, p ); |
| } |
| |
| |
| void |
| _mesa_TexGenf( GLenum coord, GLenum pname, GLfloat param ) |
| { |
| _mesa_TexGenfv(coord, pname, ¶m); |
| } |
| |
| |
| void |
| _mesa_TexGeni( GLenum coord, GLenum pname, GLint param ) |
| { |
| _mesa_TexGeniv( coord, pname, ¶m ); |
| } |
| |
| |
| |
| void |
| _mesa_GetTexGendv( GLenum coord, GLenum pname, GLdouble *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint tUnit = ctx->Texture.CurrentTransformUnit; |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit]; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| switch (coord) { |
| case GL_S: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = ENUM_TO_DOUBLE(texUnit->GenModeS); |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| COPY_4V( params, texUnit->ObjectPlaneS ); |
| } |
| else if (pname==GL_EYE_PLANE) { |
| COPY_4V( params, texUnit->EyePlaneS ); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" ); |
| return; |
| } |
| break; |
| case GL_T: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = ENUM_TO_DOUBLE(texUnit->GenModeT); |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| COPY_4V( params, texUnit->ObjectPlaneT ); |
| } |
| else if (pname==GL_EYE_PLANE) { |
| COPY_4V( params, texUnit->EyePlaneT ); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" ); |
| return; |
| } |
| break; |
| case GL_R: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = ENUM_TO_DOUBLE(texUnit->GenModeR); |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| COPY_4V( params, texUnit->ObjectPlaneR ); |
| } |
| else if (pname==GL_EYE_PLANE) { |
| COPY_4V( params, texUnit->EyePlaneR ); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" ); |
| return; |
| } |
| break; |
| case GL_Q: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = ENUM_TO_DOUBLE(texUnit->GenModeQ); |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| COPY_4V( params, texUnit->ObjectPlaneQ ); |
| } |
| else if (pname==GL_EYE_PLANE) { |
| COPY_4V( params, texUnit->EyePlaneQ ); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" ); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(coord)" ); |
| return; |
| } |
| } |
| |
| |
| |
| void |
| _mesa_GetTexGenfv( GLenum coord, GLenum pname, GLfloat *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint tUnit = ctx->Texture.CurrentTransformUnit; |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit]; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| switch (coord) { |
| case GL_S: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = ENUM_TO_FLOAT(texUnit->GenModeS); |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| COPY_4V( params, texUnit->ObjectPlaneS ); |
| } |
| else if (pname==GL_EYE_PLANE) { |
| COPY_4V( params, texUnit->EyePlaneS ); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" ); |
| return; |
| } |
| break; |
| case GL_T: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = ENUM_TO_FLOAT(texUnit->GenModeT); |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| COPY_4V( params, texUnit->ObjectPlaneT ); |
| } |
| else if (pname==GL_EYE_PLANE) { |
| COPY_4V( params, texUnit->EyePlaneT ); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" ); |
| return; |
| } |
| break; |
| case GL_R: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = ENUM_TO_FLOAT(texUnit->GenModeR); |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| COPY_4V( params, texUnit->ObjectPlaneR ); |
| } |
| else if (pname==GL_EYE_PLANE) { |
| COPY_4V( params, texUnit->EyePlaneR ); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" ); |
| return; |
| } |
| break; |
| case GL_Q: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = ENUM_TO_FLOAT(texUnit->GenModeQ); |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| COPY_4V( params, texUnit->ObjectPlaneQ ); |
| } |
| else if (pname==GL_EYE_PLANE) { |
| COPY_4V( params, texUnit->EyePlaneQ ); |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" ); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(coord)" ); |
| return; |
| } |
| } |
| |
| |
| |
| void |
| _mesa_GetTexGeniv( GLenum coord, GLenum pname, GLint *params ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint tUnit = ctx->Texture.CurrentTransformUnit; |
| struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit]; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| switch (coord) { |
| case GL_S: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = texUnit->GenModeS; |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| params[0] = (GLint) texUnit->ObjectPlaneS[0]; |
| params[1] = (GLint) texUnit->ObjectPlaneS[1]; |
| params[2] = (GLint) texUnit->ObjectPlaneS[2]; |
| params[3] = (GLint) texUnit->ObjectPlaneS[3]; |
| } |
| else if (pname==GL_EYE_PLANE) { |
| params[0] = (GLint) texUnit->EyePlaneS[0]; |
| params[1] = (GLint) texUnit->EyePlaneS[1]; |
| params[2] = (GLint) texUnit->EyePlaneS[2]; |
| params[3] = (GLint) texUnit->EyePlaneS[3]; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" ); |
| return; |
| } |
| break; |
| case GL_T: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = texUnit->GenModeT; |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| params[0] = (GLint) texUnit->ObjectPlaneT[0]; |
| params[1] = (GLint) texUnit->ObjectPlaneT[1]; |
| params[2] = (GLint) texUnit->ObjectPlaneT[2]; |
| params[3] = (GLint) texUnit->ObjectPlaneT[3]; |
| } |
| else if (pname==GL_EYE_PLANE) { |
| params[0] = (GLint) texUnit->EyePlaneT[0]; |
| params[1] = (GLint) texUnit->EyePlaneT[1]; |
| params[2] = (GLint) texUnit->EyePlaneT[2]; |
| params[3] = (GLint) texUnit->EyePlaneT[3]; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" ); |
| return; |
| } |
| break; |
| case GL_R: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = texUnit->GenModeR; |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| params[0] = (GLint) texUnit->ObjectPlaneR[0]; |
| params[1] = (GLint) texUnit->ObjectPlaneR[1]; |
| params[2] = (GLint) texUnit->ObjectPlaneR[2]; |
| params[3] = (GLint) texUnit->ObjectPlaneR[3]; |
| } |
| else if (pname==GL_EYE_PLANE) { |
| params[0] = (GLint) texUnit->EyePlaneR[0]; |
| params[1] = (GLint) texUnit->EyePlaneR[1]; |
| params[2] = (GLint) texUnit->EyePlaneR[2]; |
| params[3] = (GLint) texUnit->EyePlaneR[3]; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" ); |
| return; |
| } |
| break; |
| case GL_Q: |
| if (pname==GL_TEXTURE_GEN_MODE) { |
| params[0] = texUnit->GenModeQ; |
| } |
| else if (pname==GL_OBJECT_PLANE) { |
| params[0] = (GLint) texUnit->ObjectPlaneQ[0]; |
| params[1] = (GLint) texUnit->ObjectPlaneQ[1]; |
| params[2] = (GLint) texUnit->ObjectPlaneQ[2]; |
| params[3] = (GLint) texUnit->ObjectPlaneQ[3]; |
| } |
| else if (pname==GL_EYE_PLANE) { |
| params[0] = (GLint) texUnit->EyePlaneQ[0]; |
| params[1] = (GLint) texUnit->EyePlaneQ[1]; |
| params[2] = (GLint) texUnit->EyePlaneQ[2]; |
| params[3] = (GLint) texUnit->EyePlaneQ[3]; |
| } |
| else { |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" ); |
| return; |
| } |
| break; |
| default: |
| _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(coord)" ); |
| return; |
| } |
| } |
| |
| |
| /* GL_ARB_multitexture */ |
| void |
| _mesa_ActiveTextureARB( GLenum target ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint texUnit = target - GL_TEXTURE0_ARB; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) |
| fprintf(stderr, "glActiveTexture %s\n", |
| _mesa_lookup_enum_by_nr(target)); |
| |
| if (texUnit > ctx->Const.MaxTextureUnits) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glActiveTextureARB(target)"); |
| return; |
| } |
| |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| ctx->Texture.CurrentUnit = texUnit; |
| ctx->Texture.CurrentTransformUnit = texUnit; |
| if (ctx->Driver.ActiveTexture) { |
| (*ctx->Driver.ActiveTexture)( ctx, (GLuint) texUnit ); |
| } |
| } |
| |
| |
| /* GL_ARB_multitexture */ |
| void |
| _mesa_ClientActiveTextureARB( GLenum target ) |
| { |
| GET_CURRENT_CONTEXT(ctx); |
| GLuint texUnit = target - GL_TEXTURE0_ARB; |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| if (texUnit > ctx->Const.MaxTextureUnits) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glActiveTextureARB(target)"); |
| return; |
| } |
| |
| FLUSH_VERTICES(ctx, _NEW_ARRAY); |
| ctx->Array.ActiveTexture = texUnit; |
| } |