| /* |
| * Mesa 3-D graphics library |
| * Version: 7.5 |
| * |
| * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. |
| * Copyright (C) 2009 VMware, Inc. 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" |
| #include "shader/prog_instruction.h" |
| |
| |
| /** |
| * 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; |
| } |
| |
| |
| /** |
| * Get current texture object for given target. |
| * Return NULL if any error. |
| */ |
| static struct gl_texture_object * |
| get_texobj(GLcontext *ctx, GLenum target) |
| { |
| struct gl_texture_unit *texUnit; |
| |
| if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(current unit)"); |
| return NULL; |
| } |
| |
| texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; |
| |
| switch (target) { |
| case GL_TEXTURE_1D: |
| return texUnit->Current1D; |
| case GL_TEXTURE_2D: |
| return texUnit->Current2D; |
| case GL_TEXTURE_3D: |
| return texUnit->Current3D; |
| case GL_TEXTURE_CUBE_MAP: |
| if (ctx->Extensions.ARB_texture_cube_map) { |
| return texUnit->CurrentCubeMap; |
| } |
| break; |
| case GL_TEXTURE_RECTANGLE_NV: |
| if (ctx->Extensions.NV_texture_rectangle) { |
| return texUnit->CurrentRect; |
| } |
| break; |
| case GL_TEXTURE_1D_ARRAY_EXT: |
| if (ctx->Extensions.MESA_texture_array) { |
| return texUnit->Current1DArray; |
| } |
| break; |
| case GL_TEXTURE_2D_ARRAY_EXT: |
| if (ctx->Extensions.MESA_texture_array) { |
| return texUnit->Current2DArray; |
| } |
| break; |
| default: |
| ; |
| } |
| |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(target)"); |
| return NULL; |
| } |
| |
| |
| /** |
| * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE. |
| * \return -1 if error. |
| */ |
| static GLint |
| comp_to_swizzle(GLenum comp) |
| { |
| switch (comp) { |
| case GL_RED: |
| return SWIZZLE_X; |
| case GL_GREEN: |
| return SWIZZLE_Y; |
| case GL_BLUE: |
| return SWIZZLE_Z; |
| case GL_ALPHA: |
| return SWIZZLE_W; |
| case GL_ZERO: |
| return SWIZZLE_ZERO; |
| case GL_ONE: |
| return SWIZZLE_ONE; |
| default: |
| return -1; |
| } |
| } |
| |
| |
| static void |
| set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz) |
| { |
| ASSERT(comp < 4); |
| ASSERT(swz <= SWIZZLE_NIL); |
| { |
| GLuint mask = 0x7 << (3 * comp); |
| GLuint s = (*swizzle & ~mask) | (swz << (3 * comp)); |
| *swizzle = s; |
| } |
| } |
| |
| |
| /** |
| * This is called just prior to changing any texture object state. |
| * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE |
| * state flag and then mark the texture object as 'incomplete' so that any |
| * per-texture derived state gets recomputed. |
| */ |
| static INLINE void |
| flush(GLcontext *ctx, struct gl_texture_object *texObj) |
| { |
| FLUSH_VERTICES(ctx, _NEW_TEXTURE); |
| texObj->_Complete = GL_FALSE; |
| } |
| |
| |
| /** Set an integer-valued texture parameter */ |
| static void |
| set_tex_parameteri(GLcontext *ctx, |
| struct gl_texture_object *texObj, |
| GLenum pname, const GLint *params) |
| { |
| switch (pname) { |
| case GL_TEXTURE_MIN_FILTER: |
| if (texObj->MinFilter == params[0]) |
| return; |
| switch (params[0]) { |
| case GL_NEAREST: |
| case GL_LINEAR: |
| flush(ctx, texObj); |
| texObj->MinFilter = params[0]; |
| return; |
| case GL_NEAREST_MIPMAP_NEAREST: |
| case GL_LINEAR_MIPMAP_NEAREST: |
| case GL_NEAREST_MIPMAP_LINEAR: |
| case GL_LINEAR_MIPMAP_LINEAR: |
| if (texObj->Target != GL_TEXTURE_RECTANGLE_NV) { |
| flush(ctx, texObj); |
| texObj->MinFilter = params[0]; |
| return; |
| } |
| /* fall-through */ |
| default: |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| } |
| return; |
| |
| case GL_TEXTURE_MAG_FILTER: |
| if (texObj->MagFilter == params[0]) |
| return; |
| switch (params[0]) { |
| case GL_NEAREST: |
| case GL_LINEAR: |
| flush(ctx, texObj); |
| texObj->MagFilter = params[0]; |
| return; |
| default: |
| _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| } |
| return; |
| |
| case GL_TEXTURE_WRAP_S: |
| if (texObj->WrapS == params[0]) |
| return; |
| if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { |
| flush(ctx, texObj); |
| texObj->WrapS = params[0]; |
| } |
| return; |
| |
| case GL_TEXTURE_WRAP_T: |
| if (texObj->WrapT == params[0]) |
| return; |
| if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { |
| flush(ctx, texObj); |
| texObj->WrapT = params[0]; |
| } |
| return; |
| |
| case GL_TEXTURE_WRAP_R: |
| if (texObj->WrapR == params[0]) |
| return; |
| if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { |
| flush(ctx, texObj); |
| texObj->WrapR = params[0]; |
| } |
| return; |
| |
| case GL_TEXTURE_BASE_LEVEL: |
| if (texObj->BaseLevel == params[0]) |
| return; |
| if (params[0] < 0 || |
| (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) { |
| _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)"); |
| return; |
| } |
| flush(ctx, texObj); |
| texObj->BaseLevel = params[0]; |
| return; |
| |
| case GL_TEXTURE_MAX_LEVEL: |
| if (texObj->MaxLevel == params[0]) |
| return; |
| if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(param)"); |
| return; |
| } |
| flush(ctx, texObj); |
| texObj->MaxLevel = params[0]; |
| return; |
| |
| case GL_GENERATE_MIPMAP_SGIS: |
| if (ctx->Extensions.SGIS_generate_mipmap) { |
| if (texObj->GenerateMipmap != params[0]) { |
| flush(ctx, texObj); |
| texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "glTexParameter(pname=GL_GENERATE_MIPMAP_SGIS)"); |
| } |
| return; |
| |
| case GL_TEXTURE_COMPARE_MODE_ARB: |
| if (ctx->Extensions.ARB_shadow && |
| (params[0] == GL_NONE || |
| params[0] == GL_COMPARE_R_TO_TEXTURE_ARB)) { |
| if (texObj->CompareMode != params[0]) { |
| flush(ctx, texObj); |
| texObj->CompareMode = params[0]; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "glTexParameter(GL_TEXTURE_COMPARE_MODE_ARB)"); |
| } |
| return; |
| |
| case GL_TEXTURE_COMPARE_FUNC_ARB: |
| if (ctx->Extensions.ARB_shadow) { |
| if (texObj->CompareFunc == params[0]) |
| return; |
| switch (params[0]) { |
| case GL_LEQUAL: |
| case GL_GEQUAL: |
| flush(ctx, texObj); |
| texObj->CompareFunc = params[0]; |
| return; |
| case GL_EQUAL: |
| case GL_NOTEQUAL: |
| case GL_LESS: |
| case GL_GREATER: |
| case GL_ALWAYS: |
| case GL_NEVER: |
| if (ctx->Extensions.EXT_shadow_funcs) { |
| flush(ctx, texObj); |
| texObj->CompareFunc = params[0]; |
| return; |
| } |
| /* fall-through */ |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "glTexParameter(GL_TEXTURE_COMPARE_FUNC_ARB)"); |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param)"); |
| } |
| return; |
| |
| case GL_DEPTH_TEXTURE_MODE_ARB: |
| if (ctx->Extensions.ARB_depth_texture && |
| (params[0] == GL_LUMINANCE || |
| params[0] == GL_INTENSITY || |
| params[0] == GL_ALPHA)) { |
| if (texObj->DepthMode != params[0]) { |
| flush(ctx, texObj); |
| texObj->DepthMode = params[0]; |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "glTexParameter(GL_DEPTH_TEXTURE_MODE_ARB)"); |
| } |
| return; |
| |
| #ifdef FEATURE_OES_draw_texture |
| case GL_TEXTURE_CROP_RECT_OES: |
| texObj->CropRect[0] = params[0]; |
| texObj->CropRect[1] = params[1]; |
| texObj->CropRect[2] = params[2]; |
| texObj->CropRect[3] = params[3]; |
| return; |
| #endif |
| |
| case GL_TEXTURE_SWIZZLE_R_EXT: |
| case GL_TEXTURE_SWIZZLE_G_EXT: |
| case GL_TEXTURE_SWIZZLE_B_EXT: |
| case GL_TEXTURE_SWIZZLE_A_EXT: |
| if (ctx->Extensions.EXT_texture_swizzle) { |
| const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; |
| const GLint swz = comp_to_swizzle(params[0]); |
| if (swz < 0) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glTexParameter(swizzle 0x%x)", params[0]); |
| return; |
| } |
| ASSERT(comp < 4); |
| if (swz >= 0) { |
| flush(ctx, texObj); |
| texObj->Swizzle[comp] = params[0]; |
| set_swizzle_component(&texObj->_Swizzle, comp, swz); |
| return; |
| } |
| } |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); |
| return; |
| |
| case GL_TEXTURE_SWIZZLE_RGBA_EXT: |
| if (ctx->Extensions.EXT_texture_swizzle) { |
| GLuint comp; |
| flush(ctx, texObj); |
| for (comp = 0; comp < 4; comp++) { |
| const GLint swz = comp_to_swizzle(params[comp]); |
| if (swz >= 0) { |
| texObj->Swizzle[comp] = params[comp]; |
| set_swizzle_component(&texObj->_Swizzle, comp, swz); |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glTexParameter(swizzle 0x%x)", params[comp]); |
| return; |
| } |
| } |
| return; |
| } |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); |
| return; |
| |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); |
| } |
| } |
| |
| |
| /** Set a float-valued texture parameter */ |
| static void |
| set_tex_parameterf(GLcontext *ctx, |
| struct gl_texture_object *texObj, |
| GLenum pname, const GLfloat *params) |
| { |
| switch (pname) { |
| case GL_TEXTURE_MIN_LOD: |
| if (texObj->MinLod == params[0]) |
| return; |
| flush(ctx, texObj); |
| texObj->MinLod = params[0]; |
| return; |
| |
| case GL_TEXTURE_MAX_LOD: |
| if (texObj->MaxLod == params[0]) |
| return; |
| flush(ctx, texObj); |
| texObj->MaxLod = params[0]; |
| return; |
| |
| case GL_TEXTURE_PRIORITY: |
| flush(ctx, texObj); |
| texObj->Priority = CLAMP(params[0], 0.0F, 1.0F); |
| return; |
| |
| case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
| if (ctx->Extensions.EXT_texture_filter_anisotropic) { |
| if (texObj->MaxAnisotropy == params[0]) |
| return; |
| if (params[0] < 1.0) { |
| _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); |
| return; |
| } |
| flush(ctx, texObj); |
| /* 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; |
| |
| case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
| if (ctx->Extensions.ARB_shadow_ambient) { |
| if (texObj->CompareFailValue != params[0]) { |
| flush(ctx, texObj); |
| texObj->CompareFailValue = CLAMP(params[0], 0.0F, 1.0F); |
| } |
| } |
| else { |
| _mesa_error(ctx, GL_INVALID_ENUM, |
| "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)"); |
| } |
| return; |
| |
| 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(ctx, texObj); |
| texObj->LodBias = params[0]; |
| } |
| } |
| break; |
| |
| case GL_TEXTURE_BORDER_COLOR: |
| flush(ctx, texObj); |
| 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]); |
| return; |
| |
| default: |
| _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param) |
| { |
| struct gl_texture_object *texObj; |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| texObj = get_texobj(ctx, target); |
| if (!texObj) |
| return; |
| |
| switch (pname) { |
| case GL_TEXTURE_MIN_FILTER: |
| case GL_TEXTURE_MAG_FILTER: |
| case GL_TEXTURE_WRAP_S: |
| case GL_TEXTURE_WRAP_T: |
| case GL_TEXTURE_WRAP_R: |
| case GL_TEXTURE_BASE_LEVEL: |
| case GL_TEXTURE_MAX_LEVEL: |
| case GL_GENERATE_MIPMAP_SGIS: |
| case GL_TEXTURE_COMPARE_MODE_ARB: |
| case GL_TEXTURE_COMPARE_FUNC_ARB: |
| case GL_DEPTH_TEXTURE_MODE_ARB: |
| { |
| /* convert float param to int */ |
| GLint p = (GLint) param; |
| set_tex_parameteri(ctx, texObj, pname, &p); |
| } |
| return; |
| default: |
| /* this will generate an error if pname is illegal */ |
| set_tex_parameterf(ctx, texObj, pname, ¶m); |
| } |
| |
| if (ctx->Driver.TexParameter && ctx->ErrorValue == GL_NO_ERROR) { |
| ctx->Driver.TexParameter(ctx, target, texObj, pname, ¶m); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params) |
| { |
| struct gl_texture_object *texObj; |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| texObj = get_texobj(ctx, target); |
| if (!texObj) |
| return; |
| |
| switch (pname) { |
| case GL_TEXTURE_MIN_FILTER: |
| case GL_TEXTURE_MAG_FILTER: |
| case GL_TEXTURE_WRAP_S: |
| case GL_TEXTURE_WRAP_T: |
| case GL_TEXTURE_WRAP_R: |
| case GL_TEXTURE_BASE_LEVEL: |
| case GL_TEXTURE_MAX_LEVEL: |
| case GL_GENERATE_MIPMAP_SGIS: |
| case GL_TEXTURE_COMPARE_MODE_ARB: |
| case GL_TEXTURE_COMPARE_FUNC_ARB: |
| case GL_DEPTH_TEXTURE_MODE_ARB: |
| { |
| /* convert float param to int */ |
| GLint p = (GLint) params[0]; |
| set_tex_parameteri(ctx, texObj, pname, &p); |
| } |
| break; |
| |
| #ifdef FEATURE_OES_draw_texture |
| case GL_TEXTURE_CROP_RECT_OES: |
| { |
| /* convert float params to int */ |
| GLint iparams[4]; |
| iparams[0] = (GLint) params[0]; |
| iparams[1] = (GLint) params[1]; |
| iparams[2] = (GLint) params[2]; |
| iparams[3] = (GLint) params[3]; |
| set_tex_parameteri(ctx, target, iparams); |
| } |
| break; |
| #endif |
| |
| default: |
| /* this will generate an error if pname is illegal */ |
| set_tex_parameterf(ctx, texObj, pname, params); |
| } |
| |
| if (ctx->Driver.TexParameter && ctx->ErrorValue == GL_NO_ERROR) { |
| ctx->Driver.TexParameter(ctx, target, texObj, pname, params); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_TexParameteri(GLenum target, GLenum pname, GLint param) |
| { |
| struct gl_texture_object *texObj; |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| texObj = get_texobj(ctx, target); |
| if (!texObj) |
| return; |
| |
| switch (pname) { |
| case GL_TEXTURE_MIN_LOD: |
| case GL_TEXTURE_MAX_LOD: |
| case GL_TEXTURE_PRIORITY: |
| case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
| case GL_TEXTURE_LOD_BIAS: |
| case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
| { |
| GLfloat fparam = (GLfloat) param; |
| /* convert int param to float */ |
| set_tex_parameterf(ctx, texObj, pname, &fparam); |
| } |
| break; |
| default: |
| /* this will generate an error if pname is illegal */ |
| set_tex_parameteri(ctx, texObj, pname, ¶m); |
| } |
| |
| if (ctx->Driver.TexParameter && ctx->ErrorValue == GL_NO_ERROR) { |
| GLfloat fparam = (GLfloat) param; |
| ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam); |
| } |
| } |
| |
| |
| void GLAPIENTRY |
| _mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params) |
| { |
| struct gl_texture_object *texObj; |
| GET_CURRENT_CONTEXT(ctx); |
| ASSERT_OUTSIDE_BEGIN_END(ctx); |
| |
| texObj = get_texobj(ctx, target); |
| if (!texObj) |
| return; |
| |
| switch (pname) { |
| case GL_TEXTURE_BORDER_COLOR: |
| { |
| /* convert int params to float */ |
| GLfloat fparams[4]; |
| fparams[0] = INT_TO_FLOAT(params[0]); |
| fparams[1] = INT_TO_FLOAT(params[1]); |
| fparams[2] = INT_TO_FLOAT(params[2]); |
| fparams[3] = INT_TO_FLOAT(params[3]); |
| set_tex_parameterf(ctx, texObj, pname, fparams); |
| } |
| break; |
| case GL_TEXTURE_MIN_LOD: |
| case GL_TEXTURE_MAX_LOD: |
| case GL_TEXTURE_PRIORITY: |
| case GL_TEXTURE_MAX_ANISOTROPY_EXT: |
| case GL_TEXTURE_LOD_BIAS: |
| case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
| { |
| /* convert int param to float */ |
| GLfloat fparam = (GLfloat) params[0]; |
| set_tex_parameterf(ctx, texObj, pname, &fparam); |
| } |
| break; |
| default: |
| /* this will generate an error if pname is illegal */ |
| set_tex_parameteri(ctx, texObj, pname, params); |
| } |
| |
| if (ctx->Driver.TexParameter && ctx->ErrorValue == GL_NO_ERROR) { |
| GLfloat fparams[4]; |
| fparams[0] = INT_TO_FLOAT(params[0]); |
| if (pname == GL_TEXTURE_BORDER_COLOR || |
| pname == GL_TEXTURE_CROP_RECT_OES) { |
| fparams[1] = INT_TO_FLOAT(params[1]); |
| fparams[2] = INT_TO_FLOAT(params[2]); |
| fparams[3] = INT_TO_FLOAT(params[3]); |
| } |
| ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams); |
| } |
| } |
| |
| |
| 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 <target> 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.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 (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)"); |
| } |
| break; |
| case GL_TEXTURE_COMPRESSED: |
| *params = (GLint) img->IsCompressed; |
| 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 = GL_TRUE; |
| break; |
| case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
| if (ctx->Extensions.ARB_shadow_ambient) { |
| *params = obj->CompareFailValue; |
| } |
| else |
| error = GL_TRUE; |
| break; |
| case GL_GENERATE_MIPMAP_SGIS: |
| if (ctx->Extensions.SGIS_generate_mipmap) { |
| *params = (GLfloat) obj->GenerateMipmap; |
| } |
| else |
| error = GL_TRUE; |
| break; |
| case GL_TEXTURE_COMPARE_MODE_ARB: |
| if (ctx->Extensions.ARB_shadow) { |
| *params = (GLfloat) obj->CompareMode; |
| } |
| else |
| error = GL_TRUE; |
| break; |
| case GL_TEXTURE_COMPARE_FUNC_ARB: |
| if (ctx->Extensions.ARB_shadow) { |
| *params = (GLfloat) obj->CompareFunc; |
| } |
| else |
| error = GL_TRUE; |
| break; |
| case GL_DEPTH_TEXTURE_MODE_ARB: |
| if (ctx->Extensions.ARB_depth_texture) { |
| *params = (GLfloat) obj->DepthMode; |
| } |
| else |
| error = GL_TRUE; |
| break; |
| case GL_TEXTURE_LOD_BIAS: |
| if (ctx->Extensions.EXT_texture_lod_bias) { |
| *params = obj->LodBias; |
| } |
| else |
| error = GL_TRUE; |
| break; |
| #ifdef FEATURE_OES_draw_texture |
| case GL_TEXTURE_CROP_RECT_OES: |
| params[0] = obj->CropRect[0]; |
| params[1] = obj->CropRect[1]; |
| params[2] = obj->CropRect[2]; |
| params[3] = obj->CropRect[3]; |
| break; |
| #endif |
| |
| case GL_TEXTURE_SWIZZLE_R_EXT: |
| case GL_TEXTURE_SWIZZLE_G_EXT: |
| case GL_TEXTURE_SWIZZLE_B_EXT: |
| case GL_TEXTURE_SWIZZLE_A_EXT: |
| if (ctx->Extensions.EXT_texture_swizzle) { |
| GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; |
| *params = (GLfloat) obj->Swizzle[comp]; |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| |
| case GL_TEXTURE_SWIZZLE_RGBA_EXT: |
| if (ctx->Extensions.EXT_texture_swizzle) { |
| GLuint comp; |
| for (comp = 0; comp < 4; comp++) { |
| params[comp] = (GLfloat) obj->Swizzle[comp]; |
| } |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| |
| default: |
| error = GL_TRUE; |
| 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; |
| 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, |
| "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; |
| 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: |
| *params = (GLint) obj->WrapR; |
| break;; |
| 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]); |
| } |
| 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 = FLOAT_TO_INT(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_MAX_ANISOTROPY_EXT: |
| if (ctx->Extensions.EXT_texture_filter_anisotropic) { |
| *params = (GLint) obj->MaxAnisotropy; |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: |
| if (ctx->Extensions.ARB_shadow_ambient) { |
| *params = (GLint) FLOAT_TO_INT(obj->CompareFailValue); |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| case GL_GENERATE_MIPMAP_SGIS: |
| if (ctx->Extensions.SGIS_generate_mipmap) { |
| *params = (GLint) obj->GenerateMipmap; |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| case GL_TEXTURE_COMPARE_MODE_ARB: |
| if (ctx->Extensions.ARB_shadow) { |
| *params = (GLint) obj->CompareMode; |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| case GL_TEXTURE_COMPARE_FUNC_ARB: |
| if (ctx->Extensions.ARB_shadow) { |
| *params = (GLint) obj->CompareFunc; |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| case GL_DEPTH_TEXTURE_MODE_ARB: |
| if (ctx->Extensions.ARB_depth_texture) { |
| *params = (GLint) obj->DepthMode; |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| case GL_TEXTURE_LOD_BIAS: |
| if (ctx->Extensions.EXT_texture_lod_bias) { |
| *params = (GLint) obj->LodBias; |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| #ifdef FEATURE_OES_draw_texture |
| case GL_TEXTURE_CROP_RECT_OES: |
| params[0] = obj->CropRect[0]; |
| params[1] = obj->CropRect[1]; |
| params[2] = obj->CropRect[2]; |
| params[3] = obj->CropRect[3]; |
| break; |
| #endif |
| case GL_TEXTURE_SWIZZLE_R_EXT: |
| case GL_TEXTURE_SWIZZLE_G_EXT: |
| case GL_TEXTURE_SWIZZLE_B_EXT: |
| case GL_TEXTURE_SWIZZLE_A_EXT: |
| if (ctx->Extensions.EXT_texture_swizzle) { |
| GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT; |
| *params = obj->Swizzle[comp]; |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| |
| case GL_TEXTURE_SWIZZLE_RGBA_EXT: |
| if (ctx->Extensions.EXT_texture_swizzle) { |
| COPY_4V(params, obj->Swizzle); |
| } |
| else { |
| error = GL_TRUE; |
| } |
| break; |
| |
| default: |
| ; /* silence warnings */ |
| } |
| |
| if (error) |
| _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", |
| pname); |
| |
| _mesa_unlock_texture(ctx, obj); |
| } |