/* * Mesa 3-D graphics library * Version: 7.1 * * Copyright (C) 1999-2008 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 texparam.c * * glTexParameter-related functions */ #include "main/glheader.h" #include "main/context.h" #include "main/enums.h" #include "main/colormac.h" #include "main/macros.h" #include "main/texcompress.h" #include "main/texparam.h" #include "main/teximage.h" #define ENUM_TO_FLOAT(X) ((GLfloat)(GLint)(X)) /** * Check if a coordinate wrap mode is supported for the texture target. * \return GL_TRUE if legal, GL_FALSE otherwise */ static GLboolean validate_texture_wrap_mode(GLcontext * ctx, GLenum target, GLenum wrap) { const struct gl_extensions * const e = & ctx->Extensions; if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE || (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) { /* any texture target */ return GL_TRUE; } else if (target != GL_TEXTURE_RECTANGLE_NV && (wrap == GL_REPEAT || (wrap == GL_MIRRORED_REPEAT && e->ARB_texture_mirrored_repeat) || (wrap == GL_MIRROR_CLAMP_EXT && (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT && (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || (wrap == 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 ) { const GLenum eparam = (GLenum) (GLint) params[0]; struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; GET_CURRENT_CONTEXT(ctx); 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)); if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) { _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameterfv(current unit)"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 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; case GL_TEXTURE_1D_ARRAY_EXT: if (!ctx->Extensions.MESA_texture_array) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" ); return; } texObj = texUnit->Current1DArray; break; case GL_TEXTURE_2D_ARRAY_EXT: if (!ctx->Extensions.MESA_texture_array) { _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" ); return; } texObj = texUnit->Current2DArray; 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 (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 (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 (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_ARB && 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; } if (target == GL_TEXTURE_RECTANGLE_ARB) { _mesa_error(ctx, GL_INVALID_OPERATION, "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) { FLUSH_VERTICES(ctx, _NEW_TEXTURE); 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; case GL_TEXTURE_1D_ARRAY_EXT: case GL_PROXY_TEXTURE_1D_ARRAY_EXT: return ctx->Extensions.MESA_texture_array ? 2 : 0; case GL_TEXTURE_2D_ARRAY_EXT: case GL_PROXY_TEXTURE_2D_ARRAY_EXT: return ctx->Extensions.MESA_texture_array ? 3 : 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 ) { const struct gl_texture_unit *texUnit; struct gl_texture_object *texObj; const struct gl_texture_image *img = NULL; GLuint dimensions; GLboolean isProxy; GLint maxLevels; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) { _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexLevelParameteriv(current unit)"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; /* 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; } maxLevels = _mesa_max_texture_levels(ctx, target); if (maxLevels == 0) { /* should not happen since was just checked above */ _mesa_problem(ctx, "maxLevels=0 in _mesa_GetTexLevelParameter"); return; } if (level < 0 || level >= maxLevels) { _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); return; } texObj = _mesa_select_tex_object(ctx, texUnit, target); _mesa_lock_texture(ctx, texObj); img = _mesa_select_tex_image(ctx, texObj, target, level); if (!img || !img->TexFormat) { /* undefined texture image */ if (pname == GL_TEXTURE_COMPONENTS) *params = 1; else *params = 0; goto out; } isProxy = _mesa_is_proxy_texture(target); switch (pname) { case GL_TEXTURE_WIDTH: *params = img->Width; break; case GL_TEXTURE_HEIGHT: *params = img->Height; break; case GL_TEXTURE_DEPTH: *params = img->Depth; break; case GL_TEXTURE_INTERNAL_FORMAT: *params = img->InternalFormat; break; case GL_TEXTURE_BORDER: *params = img->Border; break; case GL_TEXTURE_RED_SIZE: if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA) *params = img->TexFormat->RedBits; else *params = 0; break; case GL_TEXTURE_GREEN_SIZE: if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA) *params = img->TexFormat->GreenBits; else *params = 0; break; case GL_TEXTURE_BLUE_SIZE: if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA) *params = img->TexFormat->BlueBits; else *params = 0; break; case GL_TEXTURE_ALPHA_SIZE: if (img->_BaseFormat == GL_ALPHA || img->_BaseFormat == GL_LUMINANCE_ALPHA || img->_BaseFormat == GL_RGBA) *params = img->TexFormat->AlphaBits; else *params = 0; break; case GL_TEXTURE_INTENSITY_SIZE: if (img->_BaseFormat != 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); break; case GL_TEXTURE_LUMINANCE_SIZE: if (img->_BaseFormat != GL_LUMINANCE && img->_BaseFormat != 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); break; case GL_TEXTURE_INDEX_SIZE_EXT: if (img->_BaseFormat == GL_COLOR_INDEX) *params = img->TexFormat->IndexBits; else *params = 0; break; 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)"); break; case GL_TEXTURE_STENCIL_SIZE_EXT: if (ctx->Extensions.EXT_packed_depth_stencil) { *params = img->TexFormat->StencilBits; } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); } break; /* GL_ARB_texture_compression */ case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: if (ctx->Extensions.ARB_texture_compression) { if (img->IsCompressed && !isProxy) { /* Don't use ctx->Driver.CompressedTextureSize() since that * may returned a padded hardware size. */ *params = _mesa_compressed_texture_size(ctx, img->Width, img->Height, img->Depth, img->TexFormat->MesaFormat); } else { _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexLevelParameter[if]v(pname)"); } } else { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); } break; 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)"); } break; /* 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)"); } break; 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)"); } break; 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)"); } break; 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)"); } break; 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)"); } break; 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)"); } break; 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)"); } break; default: _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(pname)"); } out: _mesa_unlock_texture(ctx, texObj); } void GLAPIENTRY _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) { struct gl_texture_unit *texUnit; struct gl_texture_object *obj; GLboolean error = GL_FALSE; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) { _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexParameterfv(current unit)"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; obj = _mesa_select_tex_object(ctx, texUnit, target); if (!obj) { _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(target)"); return; } _mesa_lock_texture(ctx, obj); 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: *params = ENUM_TO_FLOAT(obj->WrapR); break; 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); 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_MAX_ANISOTROPY_EXT: if (ctx->Extensions.EXT_texture_filter_anisotropic) { *params = obj->MaxAnisotropy; } else error = 1; break; case GL_TEXTURE_COMPARE_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLfloat) obj->CompareFlag; } else error = 1; break; case GL_TEXTURE_COMPARE_OPERATOR_SGIX: if (ctx->Extensions.SGIX_shadow) { *params = (GLfloat) obj->CompareOperator; } else error = 1; break; case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */ if (ctx->Extensions.SGIX_shadow_ambient) { *params = obj->ShadowAmbient; } else error = 1; break; case GL_GENERATE_MIPMAP_SGIS: if (ctx->Extensions.SGIS_generate_mipmap) { *params = (GLfloat) obj->GenerateMipmap; } else error = 1; break; case GL_TEXTURE_COMPARE_MODE_ARB: if (ctx->Extensions.ARB_shadow) { *params = (GLfloat) obj->CompareMode; } else error = 1; break; case GL_TEXTURE_COMPARE_FUNC_ARB: if (ctx->Extensions.ARB_shadow) { *params = (GLfloat) obj->CompareFunc; } else error = 1; break; case GL_DEPTH_TEXTURE_MODE_ARB: if (ctx->Extensions.ARB_depth_texture) { *params = (GLfloat) obj->DepthMode; } else error = 1; break; case GL_TEXTURE_LOD_BIAS: if (ctx->Extensions.EXT_texture_lod_bias) { *params = obj->LodBias; } else error = 1; break; default: error = 1; break; } if (error) _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)", pname); _mesa_unlock_texture(ctx, obj); } void GLAPIENTRY _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params ) { struct gl_texture_unit *texUnit; struct gl_texture_object *obj; GET_CURRENT_CONTEXT(ctx); ASSERT_OUTSIDE_BEGIN_END(ctx); if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) { _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexParameteriv(current unit)"); return; } texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 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); }