mirror of
https://github.com/reactos/reactos.git
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835 lines
23 KiB
C
835 lines
23 KiB
C
/*
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* Mesa 3-D graphics library
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* Version: 7.5
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*
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* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
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* Copyright (C) 2009 VMware, Inc. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/**
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* \file texparam.c
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*
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* glTexParameter-related functions
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*/
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#include <precomp.h>
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/**
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* Check if a coordinate wrap mode is supported for the texture target.
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* \return GL_TRUE if legal, GL_FALSE otherwise
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*/
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static GLboolean
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validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap)
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{
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switch (wrap) {
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case GL_CLAMP:
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case GL_REPEAT:
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case GL_MIRRORED_REPEAT:
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return GL_TRUE;
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default:
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break;
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}
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_mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap );
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return GL_FALSE;
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}
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/**
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* Get current texture object for given target.
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* Return NULL if any error (and record the error).
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* Note that this is different from _mesa_select_tex_object() in that proxy
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* targets are not accepted.
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* Only the glGetTexLevelParameter() functions accept proxy targets.
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*/
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static struct gl_texture_object *
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get_texobj(struct gl_context *ctx, GLenum target, GLboolean get)
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{
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struct gl_texture_unit *texUnit;
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texUnit = &ctx->Texture.Unit;
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switch (target) {
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case GL_TEXTURE_1D:
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return texUnit->CurrentTex[TEXTURE_1D_INDEX];
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case GL_TEXTURE_2D:
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return texUnit->CurrentTex[TEXTURE_2D_INDEX];
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case GL_TEXTURE_CUBE_MAP:
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if (ctx->Extensions.ARB_texture_cube_map) {
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return texUnit->CurrentTex[TEXTURE_CUBE_INDEX];
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}
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break;
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default:
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;
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}
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_mesa_error(ctx, GL_INVALID_ENUM,
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"gl%sTexParameter(target)", get ? "Get" : "");
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return NULL;
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}
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/**
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* This is called just prior to changing any texture object state which
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* will not effect texture completeness.
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*/
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static inline void
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flush(struct gl_context *ctx)
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{
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FLUSH_VERTICES(ctx, _NEW_TEXTURE);
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}
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/**
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* This is called just prior to changing any texture object state which
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* can effect texture completeness (texture base level, max level,
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* minification filter).
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* Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE
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* state flag and then mark the texture object as 'incomplete' so that any
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* per-texture derived state gets recomputed.
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*/
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static inline void
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incomplete(struct gl_context *ctx, struct gl_texture_object *texObj)
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{
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FLUSH_VERTICES(ctx, _NEW_TEXTURE);
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texObj->_Complete = GL_FALSE;
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}
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/**
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* Set an integer-valued texture parameter
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* \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
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*/
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static GLboolean
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set_tex_parameteri(struct gl_context *ctx,
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struct gl_texture_object *texObj,
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GLenum pname, const GLint *params)
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{
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switch (pname) {
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case GL_TEXTURE_MIN_FILTER:
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if (texObj->Sampler.MinFilter == params[0])
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return GL_FALSE;
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switch (params[0]) {
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case GL_NEAREST:
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case GL_LINEAR:
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incomplete(ctx, texObj);
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texObj->Sampler.MinFilter = params[0];
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return GL_TRUE;
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case GL_NEAREST_MIPMAP_NEAREST:
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case GL_LINEAR_MIPMAP_NEAREST:
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case GL_NEAREST_MIPMAP_LINEAR:
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case GL_LINEAR_MIPMAP_LINEAR:
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incomplete(ctx, texObj);
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texObj->Sampler.MinFilter = params[0];
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return GL_TRUE;
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/* fall-through */
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default:
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goto invalid_param;
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}
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return GL_FALSE;
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case GL_TEXTURE_MAG_FILTER:
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if (texObj->Sampler.MagFilter == params[0])
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return GL_FALSE;
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switch (params[0]) {
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case GL_NEAREST:
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case GL_LINEAR:
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flush(ctx); /* does not effect completeness */
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texObj->Sampler.MagFilter = params[0];
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return GL_TRUE;
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default:
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goto invalid_param;
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}
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return GL_FALSE;
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case GL_TEXTURE_WRAP_S:
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if (texObj->Sampler.WrapS == params[0])
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return GL_FALSE;
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if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
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flush(ctx);
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texObj->Sampler.WrapS = params[0];
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return GL_TRUE;
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}
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return GL_FALSE;
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case GL_TEXTURE_WRAP_T:
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if (texObj->Sampler.WrapT == params[0])
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return GL_FALSE;
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if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
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flush(ctx);
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texObj->Sampler.WrapT = params[0];
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return GL_TRUE;
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}
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return GL_FALSE;
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case GL_TEXTURE_WRAP_R:
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if (texObj->Sampler.WrapR == params[0])
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return GL_FALSE;
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if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
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flush(ctx);
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texObj->Sampler.WrapR = params[0];
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return GL_TRUE;
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}
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return GL_FALSE;
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default:
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goto invalid_pname;
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}
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invalid_pname:
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_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=%s)",
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_mesa_lookup_enum_by_nr(pname));
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return GL_FALSE;
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invalid_param:
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_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param=%s)",
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_mesa_lookup_enum_by_nr(params[0]));
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return GL_FALSE;
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}
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/**
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* Set a float-valued texture parameter
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* \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
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*/
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static GLboolean
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set_tex_parameterf(struct gl_context *ctx,
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struct gl_texture_object *texObj,
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GLenum pname, const GLfloat *params)
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{
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switch (pname) {
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case GL_TEXTURE_PRIORITY:
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flush(ctx);
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texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);
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return GL_TRUE;
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case GL_TEXTURE_MAX_ANISOTROPY_EXT:
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if (ctx->Extensions.EXT_texture_filter_anisotropic) {
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if (texObj->Sampler.MaxAnisotropy == params[0])
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return GL_FALSE;
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if (params[0] < 1.0) {
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_mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
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return GL_FALSE;
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}
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flush(ctx);
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/* clamp to max, that's what NVIDIA does */
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texObj->Sampler.MaxAnisotropy = MIN2(params[0],
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ctx->Const.MaxTextureMaxAnisotropy);
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return GL_TRUE;
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}
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else {
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static GLuint count = 0;
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if (count++ < 10)
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_mesa_error(ctx, GL_INVALID_ENUM,
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"glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
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}
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return GL_FALSE;
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case GL_TEXTURE_BORDER_COLOR:
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flush(ctx);
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texObj->Sampler.BorderColor.f[RCOMP] = CLAMP(params[0], 0.0F, 1.0F);
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texObj->Sampler.BorderColor.f[GCOMP] = CLAMP(params[1], 0.0F, 1.0F);
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texObj->Sampler.BorderColor.f[BCOMP] = CLAMP(params[2], 0.0F, 1.0F);
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texObj->Sampler.BorderColor.f[ACOMP] = CLAMP(params[3], 0.0F, 1.0F);
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return GL_TRUE;
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default:
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_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
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}
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return GL_FALSE;
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}
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void GLAPIENTRY
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_mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
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{
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GLboolean need_update;
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struct gl_texture_object *texObj;
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END(ctx);
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texObj = get_texobj(ctx, target, GL_FALSE);
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if (!texObj)
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return;
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switch (pname) {
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case GL_TEXTURE_MIN_FILTER:
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case GL_TEXTURE_MAG_FILTER:
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case GL_TEXTURE_WRAP_S:
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case GL_TEXTURE_WRAP_T:
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case GL_TEXTURE_WRAP_R:
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case GL_TEXTURE_COMPARE_MODE_ARB:
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case GL_TEXTURE_COMPARE_FUNC_ARB:
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case GL_DEPTH_TEXTURE_MODE_ARB:
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case GL_TEXTURE_CUBE_MAP_SEAMLESS:
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{
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/* convert float param to int */
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GLint p[4];
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p[0] = (GLint) param;
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p[1] = p[2] = p[3] = 0;
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need_update = set_tex_parameteri(ctx, texObj, pname, p);
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}
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break;
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case GL_TEXTURE_SWIZZLE_R_EXT:
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case GL_TEXTURE_SWIZZLE_G_EXT:
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case GL_TEXTURE_SWIZZLE_B_EXT:
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case GL_TEXTURE_SWIZZLE_A_EXT:
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{
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GLint p[4];
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p[0] = (GLint) param;
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p[1] = p[2] = p[3] = 0;
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need_update = set_tex_parameteri(ctx, texObj, pname, p);
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}
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break;
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default:
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{
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/* this will generate an error if pname is illegal */
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GLfloat p[4];
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p[0] = param;
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p[1] = p[2] = p[3] = 0.0F;
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need_update = set_tex_parameterf(ctx, texObj, pname, p);
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}
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}
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if (ctx->Driver.TexParameter && need_update) {
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ctx->Driver.TexParameter(ctx, target, texObj, pname, ¶m);
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}
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}
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void GLAPIENTRY
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_mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
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{
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GLboolean need_update;
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struct gl_texture_object *texObj;
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END(ctx);
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texObj = get_texobj(ctx, target, GL_FALSE);
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if (!texObj)
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return;
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switch (pname) {
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case GL_TEXTURE_MIN_FILTER:
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case GL_TEXTURE_MAG_FILTER:
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case GL_TEXTURE_WRAP_S:
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case GL_TEXTURE_WRAP_T:
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case GL_TEXTURE_WRAP_R:
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case GL_TEXTURE_COMPARE_MODE_ARB:
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case GL_TEXTURE_COMPARE_FUNC_ARB:
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case GL_DEPTH_TEXTURE_MODE_ARB:
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case GL_TEXTURE_CUBE_MAP_SEAMLESS:
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{
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/* convert float param to int */
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GLint p[4];
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p[0] = (GLint) params[0];
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p[1] = p[2] = p[3] = 0;
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need_update = set_tex_parameteri(ctx, texObj, pname, p);
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}
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break;
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case GL_TEXTURE_SWIZZLE_R_EXT:
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case GL_TEXTURE_SWIZZLE_G_EXT:
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case GL_TEXTURE_SWIZZLE_B_EXT:
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case GL_TEXTURE_SWIZZLE_A_EXT:
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case GL_TEXTURE_SWIZZLE_RGBA_EXT:
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{
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GLint p[4] = {0, 0, 0, 0};
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p[0] = (GLint) params[0];
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if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT) {
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p[1] = (GLint) params[1];
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p[2] = (GLint) params[2];
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p[3] = (GLint) params[3];
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}
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need_update = set_tex_parameteri(ctx, texObj, pname, p);
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}
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break;
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default:
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/* this will generate an error if pname is illegal */
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need_update = set_tex_parameterf(ctx, texObj, pname, params);
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}
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if (ctx->Driver.TexParameter && need_update) {
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ctx->Driver.TexParameter(ctx, target, texObj, pname, params);
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}
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}
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void GLAPIENTRY
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_mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
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{
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GLboolean need_update;
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struct gl_texture_object *texObj;
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GET_CURRENT_CONTEXT(ctx);
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ASSERT_OUTSIDE_BEGIN_END(ctx);
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texObj = get_texobj(ctx, target, GL_FALSE);
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if (!texObj)
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return;
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switch (pname) {
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case GL_TEXTURE_MIN_LOD:
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case GL_TEXTURE_MAX_LOD:
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case GL_TEXTURE_PRIORITY:
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case GL_TEXTURE_MAX_ANISOTROPY_EXT:
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case GL_TEXTURE_LOD_BIAS:
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case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
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{
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GLfloat fparam[4];
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fparam[0] = (GLfloat) param;
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fparam[1] = fparam[2] = fparam[3] = 0.0F;
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/* convert int param to float */
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need_update = set_tex_parameterf(ctx, texObj, pname, fparam);
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}
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break;
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default:
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/* this will generate an error if pname is illegal */
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{
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GLint iparam[4];
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iparam[0] = param;
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iparam[1] = iparam[2] = iparam[3] = 0;
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need_update = set_tex_parameteri(ctx, texObj, pname, iparam);
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}
|
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}
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if (ctx->Driver.TexParameter && need_update) {
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GLfloat fparam = (GLfloat) param;
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ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam);
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}
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}
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|
|
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void GLAPIENTRY
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_mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
|
|
{
|
|
GLboolean need_update;
|
|
struct gl_texture_object *texObj;
|
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GET_CURRENT_CONTEXT(ctx);
|
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ASSERT_OUTSIDE_BEGIN_END(ctx);
|
|
|
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texObj = get_texobj(ctx, target, GL_FALSE);
|
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if (!texObj)
|
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return;
|
|
|
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switch (pname) {
|
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case GL_TEXTURE_BORDER_COLOR:
|
|
{
|
|
/* convert int params to float */
|
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GLfloat fparams[4];
|
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fparams[0] = INT_TO_FLOAT(params[0]);
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fparams[1] = INT_TO_FLOAT(params[1]);
|
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fparams[2] = INT_TO_FLOAT(params[2]);
|
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fparams[3] = INT_TO_FLOAT(params[3]);
|
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need_update = set_tex_parameterf(ctx, texObj, pname, fparams);
|
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}
|
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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 fparams[4];
|
|
fparams[0] = (GLfloat) params[0];
|
|
fparams[1] = fparams[2] = fparams[3] = 0.0F;
|
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need_update = set_tex_parameterf(ctx, texObj, pname, fparams);
|
|
}
|
|
break;
|
|
default:
|
|
/* this will generate an error if pname is illegal */
|
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need_update = set_tex_parameteri(ctx, texObj, pname, params);
|
|
}
|
|
|
|
if (ctx->Driver.TexParameter && need_update) {
|
|
GLfloat fparams[4];
|
|
fparams[0] = INT_TO_FLOAT(params[0]);
|
|
if (pname == GL_TEXTURE_BORDER_COLOR ||
|
|
pname == GL_TEXTURE_CROP_RECT_OES) {
|
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fparams[1] = INT_TO_FLOAT(params[1]);
|
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fparams[2] = INT_TO_FLOAT(params[2]);
|
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fparams[3] = INT_TO_FLOAT(params[3]);
|
|
}
|
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ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Set tex parameter to integer value(s). Primarily intended to set
|
|
* integer-valued texture border color (for integer-valued textures).
|
|
* New in GL 3.0.
|
|
*/
|
|
void GLAPIENTRY
|
|
_mesa_TexParameterIiv(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, GL_FALSE);
|
|
if (!texObj)
|
|
return;
|
|
|
|
switch (pname) {
|
|
case GL_TEXTURE_BORDER_COLOR:
|
|
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
|
|
/* set the integer-valued border color */
|
|
COPY_4V(texObj->Sampler.BorderColor.i, params);
|
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break;
|
|
default:
|
|
_mesa_TexParameteriv(target, pname, params);
|
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break;
|
|
}
|
|
/* XXX no driver hook for TexParameterIiv() yet */
|
|
}
|
|
|
|
|
|
/**
|
|
* Set tex parameter to unsigned integer value(s). Primarily intended to set
|
|
* uint-valued texture border color (for integer-valued textures).
|
|
* New in GL 3.0
|
|
*/
|
|
void GLAPIENTRY
|
|
_mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
|
|
{
|
|
struct gl_texture_object *texObj;
|
|
GET_CURRENT_CONTEXT(ctx);
|
|
ASSERT_OUTSIDE_BEGIN_END(ctx);
|
|
|
|
texObj = get_texobj(ctx, target, GL_FALSE);
|
|
if (!texObj)
|
|
return;
|
|
|
|
switch (pname) {
|
|
case GL_TEXTURE_BORDER_COLOR:
|
|
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
|
|
/* set the unsigned integer-valued border color */
|
|
COPY_4V(texObj->Sampler.BorderColor.ui, params);
|
|
break;
|
|
default:
|
|
_mesa_TexParameteriv(target, pname, (const GLint *) params);
|
|
break;
|
|
}
|
|
/* XXX no driver hook for TexParameterIuiv() yet */
|
|
}
|
|
|
|
|
|
void GLAPIENTRY
|
|
_mesa_GetTexLevelParameterfv( GLenum target, GLint level,
|
|
GLenum pname, GLfloat *params )
|
|
{
|
|
GLint iparam;
|
|
_mesa_GetTexLevelParameteriv( target, level, pname, &iparam );
|
|
*params = (GLfloat) iparam;
|
|
}
|
|
|
|
|
|
void GLAPIENTRY
|
|
_mesa_GetTexLevelParameteriv( GLenum target, GLint level,
|
|
GLenum pname, GLint *params )
|
|
{
|
|
struct gl_texture_object *texObj;
|
|
const struct gl_texture_image *img = NULL;
|
|
GLint maxLevels;
|
|
gl_format texFormat;
|
|
GET_CURRENT_CONTEXT(ctx);
|
|
ASSERT_OUTSIDE_BEGIN_END(ctx);
|
|
|
|
/* this will catch bad target values */
|
|
maxLevels = _mesa_max_texture_levels(ctx, target);
|
|
if (maxLevels == 0) {
|
|
_mesa_error(ctx, GL_INVALID_ENUM,
|
|
"glGetTexLevelParameter[if]v(target=0x%x)", target);
|
|
return;
|
|
}
|
|
|
|
if (level < 0 || level >= maxLevels) {
|
|
_mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" );
|
|
return;
|
|
}
|
|
|
|
texObj = _mesa_select_tex_object(ctx, target);
|
|
|
|
img = _mesa_select_tex_image(ctx, texObj, target, level);
|
|
if (!img || img->TexFormat == MESA_FORMAT_NONE) {
|
|
/* undefined texture image */
|
|
if (pname == GL_TEXTURE_COMPONENTS)
|
|
*params = 1;
|
|
else
|
|
*params = 0;
|
|
return;
|
|
}
|
|
|
|
texFormat = img->TexFormat;
|
|
|
|
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:
|
|
case GL_TEXTURE_GREEN_SIZE:
|
|
case GL_TEXTURE_BLUE_SIZE:
|
|
case GL_TEXTURE_ALPHA_SIZE:
|
|
if (_mesa_base_format_has_channel(img->_BaseFormat, pname))
|
|
*params = _mesa_get_format_bits(texFormat, pname);
|
|
else
|
|
*params = 0;
|
|
break;
|
|
case GL_TEXTURE_INTENSITY_SIZE:
|
|
case GL_TEXTURE_LUMINANCE_SIZE:
|
|
if (_mesa_base_format_has_channel(img->_BaseFormat, pname)) {
|
|
*params = _mesa_get_format_bits(texFormat, pname);
|
|
if (*params == 0) {
|
|
/* intensity or luminance is probably stored as RGB[A] */
|
|
*params = MIN2(_mesa_get_format_bits(texFormat,
|
|
GL_TEXTURE_RED_SIZE),
|
|
_mesa_get_format_bits(texFormat,
|
|
GL_TEXTURE_GREEN_SIZE));
|
|
}
|
|
}
|
|
else {
|
|
*params = 0;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
goto invalid_pname;
|
|
}
|
|
|
|
/* no error if we get here */
|
|
return;
|
|
|
|
invalid_pname:
|
|
_mesa_error(ctx, GL_INVALID_ENUM,
|
|
"glGetTexLevelParameter[if]v(pname=%s)",
|
|
_mesa_lookup_enum_by_nr(pname));
|
|
}
|
|
|
|
|
|
|
|
void GLAPIENTRY
|
|
_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
|
|
{
|
|
struct gl_texture_object *obj;
|
|
GET_CURRENT_CONTEXT(ctx);
|
|
ASSERT_OUTSIDE_BEGIN_END(ctx);
|
|
|
|
obj = get_texobj(ctx, target, GL_TRUE);
|
|
if (!obj)
|
|
return;
|
|
|
|
_mesa_lock_texture(ctx, obj);
|
|
switch (pname) {
|
|
case GL_TEXTURE_MAG_FILTER:
|
|
*params = ENUM_TO_FLOAT(obj->Sampler.MagFilter);
|
|
break;
|
|
case GL_TEXTURE_MIN_FILTER:
|
|
*params = ENUM_TO_FLOAT(obj->Sampler.MinFilter);
|
|
break;
|
|
case GL_TEXTURE_WRAP_S:
|
|
*params = ENUM_TO_FLOAT(obj->Sampler.WrapS);
|
|
break;
|
|
case GL_TEXTURE_WRAP_T:
|
|
*params = ENUM_TO_FLOAT(obj->Sampler.WrapT);
|
|
break;
|
|
case GL_TEXTURE_WRAP_R:
|
|
*params = ENUM_TO_FLOAT(obj->Sampler.WrapR);
|
|
break;
|
|
case GL_TEXTURE_BORDER_COLOR:
|
|
if (ctx->NewState & _NEW_BUFFERS)
|
|
_mesa_update_state_locked(ctx);
|
|
params[0] = obj->Sampler.BorderColor.f[0];
|
|
params[1] = obj->Sampler.BorderColor.f[1];
|
|
params[2] = obj->Sampler.BorderColor.f[2];
|
|
params[3] = obj->Sampler.BorderColor.f[3];
|
|
break;
|
|
case GL_TEXTURE_RESIDENT:
|
|
*params = 1.0F;
|
|
break;
|
|
case GL_TEXTURE_PRIORITY:
|
|
*params = obj->Priority;
|
|
break;
|
|
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
|
|
if (!ctx->Extensions.EXT_texture_filter_anisotropic)
|
|
goto invalid_pname;
|
|
*params = obj->Sampler.MaxAnisotropy;
|
|
break;
|
|
|
|
case GL_TEXTURE_IMMUTABLE_FORMAT:
|
|
if (!ctx->Extensions.ARB_texture_storage)
|
|
goto invalid_pname;
|
|
*params = (GLfloat) obj->Immutable;
|
|
break;
|
|
|
|
default:
|
|
goto invalid_pname;
|
|
}
|
|
|
|
/* no error if we get here */
|
|
_mesa_unlock_texture(ctx, obj);
|
|
return;
|
|
|
|
invalid_pname:
|
|
_mesa_unlock_texture(ctx, obj);
|
|
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)", pname);
|
|
}
|
|
|
|
|
|
void GLAPIENTRY
|
|
_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
|
|
{
|
|
struct gl_texture_object *obj;
|
|
GET_CURRENT_CONTEXT(ctx);
|
|
ASSERT_OUTSIDE_BEGIN_END(ctx);
|
|
|
|
obj = get_texobj(ctx, target, GL_TRUE);
|
|
if (!obj)
|
|
return;
|
|
|
|
_mesa_lock_texture(ctx, obj);
|
|
switch (pname) {
|
|
case GL_TEXTURE_MAG_FILTER:
|
|
*params = (GLint) obj->Sampler.MagFilter;
|
|
break;;
|
|
case GL_TEXTURE_MIN_FILTER:
|
|
*params = (GLint) obj->Sampler.MinFilter;
|
|
break;;
|
|
case GL_TEXTURE_WRAP_S:
|
|
*params = (GLint) obj->Sampler.WrapS;
|
|
break;;
|
|
case GL_TEXTURE_WRAP_T:
|
|
*params = (GLint) obj->Sampler.WrapT;
|
|
break;;
|
|
case GL_TEXTURE_WRAP_R:
|
|
*params = (GLint) obj->Sampler.WrapR;
|
|
break;;
|
|
case GL_TEXTURE_BORDER_COLOR:
|
|
{
|
|
GLfloat b[4];
|
|
b[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F);
|
|
b[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F);
|
|
b[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F);
|
|
b[3] = CLAMP(obj->Sampler.BorderColor.f[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:
|
|
*params = 1;
|
|
break;;
|
|
case GL_TEXTURE_PRIORITY:
|
|
*params = FLOAT_TO_INT(obj->Priority);
|
|
break;
|
|
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
|
|
if (!ctx->Extensions.EXT_texture_filter_anisotropic)
|
|
goto invalid_pname;
|
|
*params = (GLint) obj->Sampler.MaxAnisotropy;
|
|
break;
|
|
|
|
case GL_TEXTURE_IMMUTABLE_FORMAT:
|
|
if (!ctx->Extensions.ARB_texture_storage)
|
|
goto invalid_pname;
|
|
*params = (GLint) obj->Immutable;
|
|
break;
|
|
|
|
default:
|
|
goto invalid_pname;
|
|
}
|
|
|
|
/* no error if we get here */
|
|
_mesa_unlock_texture(ctx, obj);
|
|
return;
|
|
|
|
invalid_pname:
|
|
_mesa_unlock_texture(ctx, obj);
|
|
_mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", pname);
|
|
}
|
|
|
|
|
|
/** New in GL 3.0 */
|
|
void GLAPIENTRY
|
|
_mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
|
|
{
|
|
struct gl_texture_object *texObj;
|
|
GET_CURRENT_CONTEXT(ctx);
|
|
ASSERT_OUTSIDE_BEGIN_END(ctx);
|
|
|
|
texObj = get_texobj(ctx, target, GL_TRUE);
|
|
if (!texObj)
|
|
return;
|
|
|
|
switch (pname) {
|
|
case GL_TEXTURE_BORDER_COLOR:
|
|
COPY_4V(params, texObj->Sampler.BorderColor.i);
|
|
break;
|
|
default:
|
|
_mesa_GetTexParameteriv(target, pname, params);
|
|
}
|
|
}
|
|
|
|
|
|
/** New in GL 3.0 */
|
|
void GLAPIENTRY
|
|
_mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
|
|
{
|
|
struct gl_texture_object *texObj;
|
|
GET_CURRENT_CONTEXT(ctx);
|
|
ASSERT_OUTSIDE_BEGIN_END(ctx);
|
|
|
|
texObj = get_texobj(ctx, target, GL_TRUE);
|
|
if (!texObj)
|
|
return;
|
|
|
|
switch (pname) {
|
|
case GL_TEXTURE_BORDER_COLOR:
|
|
COPY_4V(params, texObj->Sampler.BorderColor.i);
|
|
break;
|
|
default:
|
|
{
|
|
GLint ip[4];
|
|
_mesa_GetTexParameteriv(target, pname, ip);
|
|
params[0] = ip[0];
|
|
if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT ||
|
|
pname == GL_TEXTURE_CROP_RECT_OES) {
|
|
params[1] = ip[1];
|
|
params[2] = ip[2];
|
|
params[3] = ip[3];
|
|
}
|
|
}
|
|
}
|
|
}
|