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reactos/dll/opengl/mesa/main/texparam.c

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/*
* 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 <precomp.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(struct gl_context * ctx, GLenum target, GLenum wrap)
{
switch (wrap) {
case GL_CLAMP:
case GL_REPEAT:
case GL_MIRRORED_REPEAT:
return GL_TRUE;
default:
break;
}
_mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap );
return GL_FALSE;
}
/**
* Get current texture object for given target.
* Return NULL if any error (and record the error).
* Note that this is different from _mesa_select_tex_object() in that proxy
* targets are not accepted.
* Only the glGetTexLevelParameter() functions accept proxy targets.
*/
static struct gl_texture_object *
get_texobj(struct gl_context *ctx, GLenum target, GLboolean get)
{
struct gl_texture_unit *texUnit;
texUnit = &ctx->Texture.Unit;
switch (target) {
case GL_TEXTURE_1D:
return texUnit->CurrentTex[TEXTURE_1D_INDEX];
case GL_TEXTURE_2D:
return texUnit->CurrentTex[TEXTURE_2D_INDEX];
case GL_TEXTURE_CUBE_MAP:
if (ctx->Extensions.ARB_texture_cube_map) {
return texUnit->CurrentTex[TEXTURE_CUBE_INDEX];
}
break;
default:
;
}
_mesa_error(ctx, GL_INVALID_ENUM,
"gl%sTexParameter(target)", get ? "Get" : "");
return NULL;
}
/**
* This is called just prior to changing any texture object state which
* will not effect texture completeness.
*/
static inline void
flush(struct gl_context *ctx)
{
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
}
/**
* This is called just prior to changing any texture object state which
* can effect texture completeness (texture base level, max level,
* minification filter).
* 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
incomplete(struct gl_context *ctx, struct gl_texture_object *texObj)
{
FLUSH_VERTICES(ctx, _NEW_TEXTURE);
texObj->_Complete = GL_FALSE;
}
/**
* Set an integer-valued texture parameter
* \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
*/
static GLboolean
set_tex_parameteri(struct gl_context *ctx,
struct gl_texture_object *texObj,
GLenum pname, const GLint *params)
{
switch (pname) {
case GL_TEXTURE_MIN_FILTER:
if (texObj->Sampler.MinFilter == params[0])
return GL_FALSE;
switch (params[0]) {
case GL_NEAREST:
case GL_LINEAR:
incomplete(ctx, texObj);
texObj->Sampler.MinFilter = params[0];
return GL_TRUE;
case GL_NEAREST_MIPMAP_NEAREST:
case GL_LINEAR_MIPMAP_NEAREST:
case GL_NEAREST_MIPMAP_LINEAR:
case GL_LINEAR_MIPMAP_LINEAR:
incomplete(ctx, texObj);
texObj->Sampler.MinFilter = params[0];
return GL_TRUE;
/* fall-through */
default:
goto invalid_param;
}
return GL_FALSE;
case GL_TEXTURE_MAG_FILTER:
if (texObj->Sampler.MagFilter == params[0])
return GL_FALSE;
switch (params[0]) {
case GL_NEAREST:
case GL_LINEAR:
flush(ctx); /* does not effect completeness */
texObj->Sampler.MagFilter = params[0];
return GL_TRUE;
default:
goto invalid_param;
}
return GL_FALSE;
case GL_TEXTURE_WRAP_S:
if (texObj->Sampler.WrapS == params[0])
return GL_FALSE;
if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
flush(ctx);
texObj->Sampler.WrapS = params[0];
return GL_TRUE;
}
return GL_FALSE;
case GL_TEXTURE_WRAP_T:
if (texObj->Sampler.WrapT == params[0])
return GL_FALSE;
if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
flush(ctx);
texObj->Sampler.WrapT = params[0];
return GL_TRUE;
}
return GL_FALSE;
case GL_TEXTURE_WRAP_R:
if (texObj->Sampler.WrapR == params[0])
return GL_FALSE;
if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
flush(ctx);
texObj->Sampler.WrapR = params[0];
return GL_TRUE;
}
return GL_FALSE;
default:
goto invalid_pname;
}
invalid_pname:
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=%s)",
_mesa_lookup_enum_by_nr(pname));
return GL_FALSE;
invalid_param:
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param=%s)",
_mesa_lookup_enum_by_nr(params[0]));
return GL_FALSE;
}
/**
* Set a float-valued texture parameter
* \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
*/
static GLboolean
set_tex_parameterf(struct gl_context *ctx,
struct gl_texture_object *texObj,
GLenum pname, const GLfloat *params)
{
switch (pname) {
case GL_TEXTURE_PRIORITY:
flush(ctx);
texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);
return GL_TRUE;
case GL_TEXTURE_MAX_ANISOTROPY_EXT:
if (ctx->Extensions.EXT_texture_filter_anisotropic) {
if (texObj->Sampler.MaxAnisotropy == params[0])
return GL_FALSE;
if (params[0] < 1.0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
return GL_FALSE;
}
flush(ctx);
/* clamp to max, that's what NVIDIA does */
texObj->Sampler.MaxAnisotropy = MIN2(params[0],
ctx->Const.MaxTextureMaxAnisotropy);
return GL_TRUE;
}
else {
static GLuint count = 0;
if (count++ < 10)
_mesa_error(ctx, GL_INVALID_ENUM,
"glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
}
return GL_FALSE;
case GL_TEXTURE_BORDER_COLOR:
flush(ctx);
texObj->Sampler.BorderColor.f[RCOMP] = CLAMP(params[0], 0.0F, 1.0F);
texObj->Sampler.BorderColor.f[GCOMP] = CLAMP(params[1], 0.0F, 1.0F);
texObj->Sampler.BorderColor.f[BCOMP] = CLAMP(params[2], 0.0F, 1.0F);
texObj->Sampler.BorderColor.f[ACOMP] = CLAMP(params[3], 0.0F, 1.0F);
return GL_TRUE;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
}
return GL_FALSE;
}
void GLAPIENTRY
_mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
{
GLboolean need_update;
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_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_COMPARE_MODE_ARB:
case GL_TEXTURE_COMPARE_FUNC_ARB:
case GL_DEPTH_TEXTURE_MODE_ARB:
case GL_TEXTURE_CUBE_MAP_SEAMLESS:
{
/* convert float param to int */
GLint p[4];
p[0] = (GLint) param;
p[1] = p[2] = p[3] = 0;
need_update = set_tex_parameteri(ctx, texObj, pname, p);
}
break;
case GL_TEXTURE_SWIZZLE_R_EXT:
case GL_TEXTURE_SWIZZLE_G_EXT:
case GL_TEXTURE_SWIZZLE_B_EXT:
case GL_TEXTURE_SWIZZLE_A_EXT:
{
GLint p[4];
p[0] = (GLint) param;
p[1] = p[2] = p[3] = 0;
need_update = set_tex_parameteri(ctx, texObj, pname, p);
}
break;
default:
{
/* this will generate an error if pname is illegal */
GLfloat p[4];
p[0] = param;
p[1] = p[2] = p[3] = 0.0F;
need_update = set_tex_parameterf(ctx, texObj, pname, p);
}
}
if (ctx->Driver.TexParameter && need_update) {
ctx->Driver.TexParameter(ctx, target, texObj, pname, &param);
}
}
void GLAPIENTRY
_mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
{
GLboolean need_update;
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_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_COMPARE_MODE_ARB:
case GL_TEXTURE_COMPARE_FUNC_ARB:
case GL_DEPTH_TEXTURE_MODE_ARB:
case GL_TEXTURE_CUBE_MAP_SEAMLESS:
{
/* convert float param to int */
GLint p[4];
p[0] = (GLint) params[0];
p[1] = p[2] = p[3] = 0;
need_update = set_tex_parameteri(ctx, texObj, pname, p);
}
break;
case GL_TEXTURE_SWIZZLE_R_EXT:
case GL_TEXTURE_SWIZZLE_G_EXT:
case GL_TEXTURE_SWIZZLE_B_EXT:
case GL_TEXTURE_SWIZZLE_A_EXT:
case GL_TEXTURE_SWIZZLE_RGBA_EXT:
{
GLint p[4] = {0, 0, 0, 0};
p[0] = (GLint) params[0];
if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT) {
p[1] = (GLint) params[1];
p[2] = (GLint) params[2];
p[3] = (GLint) params[3];
}
need_update = set_tex_parameteri(ctx, texObj, pname, p);
}
break;
default:
/* this will generate an error if pname is illegal */
need_update = set_tex_parameterf(ctx, texObj, pname, params);
}
if (ctx->Driver.TexParameter && need_update) {
ctx->Driver.TexParameter(ctx, target, texObj, pname, params);
}
}
void GLAPIENTRY
_mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
{
GLboolean need_update;
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_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[4];
fparam[0] = (GLfloat) param;
fparam[1] = fparam[2] = fparam[3] = 0.0F;
/* convert int param to float */
need_update = set_tex_parameterf(ctx, texObj, pname, fparam);
}
break;
default:
/* this will generate an error if pname is illegal */
{
GLint iparam[4];
iparam[0] = param;
iparam[1] = iparam[2] = iparam[3] = 0;
need_update = set_tex_parameteri(ctx, texObj, pname, iparam);
}
}
if (ctx->Driver.TexParameter && need_update) {
GLfloat fparam = (GLfloat) param;
ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam);
}
}
void GLAPIENTRY
_mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
{
GLboolean need_update;
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:
{
/* 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]);
need_update = 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 fparams[4];
fparams[0] = (GLfloat) params[0];
fparams[1] = fparams[2] = fparams[3] = 0.0F;
need_update = set_tex_parameterf(ctx, texObj, pname, fparams);
}
break;
default:
/* this will generate an error if pname is illegal */
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) {
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);
}
}
/**
* 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);
break;
default:
_mesa_TexParameteriv(target, pname, params);
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];
}
}
}
}
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