0,0 → 1,1805 |
/* |
* Mesa 3-D graphics library |
* |
* 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 |
* THE AUTHORS OR COPYRIGHT HOLDERS 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 <stdbool.h> |
#include "main/glheader.h" |
#include "main/blend.h" |
#include "main/colormac.h" |
#include "main/context.h" |
#include "main/enums.h" |
#include "main/formats.h" |
#include "main/glformats.h" |
#include "main/macros.h" |
#include "main/mtypes.h" |
#include "main/state.h" |
#include "main/texcompress.h" |
#include "main/texobj.h" |
#include "main/texparam.h" |
#include "main/teximage.h" |
#include "main/texstate.h" |
#include "program/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(struct gl_context * ctx, GLenum target, GLenum wrap) |
{ |
const struct gl_extensions * const e = & ctx->Extensions; |
const bool is_desktop_gl = _mesa_is_desktop_gl(ctx); |
bool supported; |
|
switch (wrap) { |
case GL_CLAMP: |
/* GL_CLAMP was removed in the core profile, and it has never existed in |
* OpenGL ES. |
*/ |
supported = (ctx->API == API_OPENGL_COMPAT) |
&& (target != GL_TEXTURE_EXTERNAL_OES); |
break; |
|
case GL_CLAMP_TO_EDGE: |
supported = true; |
break; |
|
case GL_CLAMP_TO_BORDER: |
supported = is_desktop_gl && e->ARB_texture_border_clamp |
&& (target != GL_TEXTURE_EXTERNAL_OES); |
break; |
|
case GL_REPEAT: |
case GL_MIRRORED_REPEAT: |
supported = (target != GL_TEXTURE_RECTANGLE_NV) |
&& (target != GL_TEXTURE_EXTERNAL_OES); |
break; |
|
case GL_MIRROR_CLAMP_EXT: |
case GL_MIRROR_CLAMP_TO_EDGE_EXT: |
supported = is_desktop_gl |
&& (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp) |
&& (target != GL_TEXTURE_RECTANGLE_NV) |
&& (target != GL_TEXTURE_EXTERNAL_OES); |
break; |
|
case GL_MIRROR_CLAMP_TO_BORDER_EXT: |
supported = is_desktop_gl && e->EXT_texture_mirror_clamp |
&& (target != GL_TEXTURE_RECTANGLE_NV) |
&& (target != GL_TEXTURE_EXTERNAL_OES); |
break; |
|
default: |
supported = false; |
break; |
} |
|
if (!supported) |
_mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap ); |
|
return supported; |
} |
|
|
/** |
* 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; |
|
if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"gl%sTexParameter(current unit)", get ? "Get" : ""); |
return NULL; |
} |
|
texUnit = _mesa_get_current_tex_unit(ctx); |
|
switch (target) { |
case GL_TEXTURE_1D: |
if (_mesa_is_desktop_gl(ctx)) |
return texUnit->CurrentTex[TEXTURE_1D_INDEX]; |
break; |
case GL_TEXTURE_2D: |
return texUnit->CurrentTex[TEXTURE_2D_INDEX]; |
case GL_TEXTURE_3D: |
if (ctx->API != API_OPENGLES) |
return texUnit->CurrentTex[TEXTURE_3D_INDEX]; |
break; |
case GL_TEXTURE_CUBE_MAP: |
if (ctx->Extensions.ARB_texture_cube_map) { |
return texUnit->CurrentTex[TEXTURE_CUBE_INDEX]; |
} |
break; |
case GL_TEXTURE_RECTANGLE_NV: |
if (_mesa_is_desktop_gl(ctx) |
&& ctx->Extensions.NV_texture_rectangle) { |
return texUnit->CurrentTex[TEXTURE_RECT_INDEX]; |
} |
break; |
case GL_TEXTURE_1D_ARRAY_EXT: |
if (_mesa_is_desktop_gl(ctx) |
&& (ctx->Extensions.MESA_texture_array || |
ctx->Extensions.EXT_texture_array)) { |
return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX]; |
} |
break; |
case GL_TEXTURE_2D_ARRAY_EXT: |
if ((_mesa_is_desktop_gl(ctx) || _mesa_is_gles3(ctx)) |
&& (ctx->Extensions.MESA_texture_array || |
ctx->Extensions.EXT_texture_array)) { |
return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX]; |
} |
break; |
case GL_TEXTURE_EXTERNAL_OES: |
if (_mesa_is_gles(ctx) && ctx->Extensions.OES_EGL_image_external) { |
return texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX]; |
} |
break; |
case GL_TEXTURE_CUBE_MAP_ARRAY: |
if (ctx->Extensions.ARB_texture_cube_map_array) { |
return texUnit->CurrentTex[TEXTURE_CUBE_ARRAY_INDEX]; |
} |
break; |
case GL_TEXTURE_2D_MULTISAMPLE: |
if (ctx->Extensions.ARB_texture_multisample) { |
return texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_INDEX]; |
} |
break; |
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: |
if (ctx->Extensions.ARB_texture_multisample) { |
return texUnit->CurrentTex[TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX]; |
} |
break; |
default: |
; |
} |
|
_mesa_error(ctx, GL_INVALID_ENUM, |
"gl%sTexParameter(target)", get ? "Get" : ""); |
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 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). |
* 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); |
_mesa_dirty_texobj(ctx, texObj, GL_TRUE); |
} |
|
|
static GLboolean |
target_allows_setting_sampler_parameters(GLenum target) |
{ |
switch (target) { |
case GL_TEXTURE_2D_MULTISAMPLE: |
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: |
return GL_FALSE; |
|
default: |
return GL_TRUE; |
} |
} |
|
|
/** |
* 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 (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
if (texObj->Sampler.MinFilter == params[0]) |
return GL_FALSE; |
switch (params[0]) { |
case GL_NEAREST: |
case GL_LINEAR: |
flush(ctx); |
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: |
if (texObj->Target != GL_TEXTURE_RECTANGLE_NV && |
texObj->Target != GL_TEXTURE_EXTERNAL_OES) { |
flush(ctx); |
texObj->Sampler.MinFilter = params[0]; |
return GL_TRUE; |
} |
/* fall-through */ |
default: |
goto invalid_param; |
} |
return GL_FALSE; |
|
case GL_TEXTURE_MAG_FILTER: |
if (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
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 (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
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 (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
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 (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
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; |
|
case GL_TEXTURE_BASE_LEVEL: |
if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
|
if (texObj->BaseLevel == params[0]) |
return GL_FALSE; |
|
if ((texObj->Target == GL_TEXTURE_2D_MULTISAMPLE || |
texObj->Target == GL_TEXTURE_2D_MULTISAMPLE_ARRAY) && params[0] != 0) |
goto invalid_operation; |
|
if (params[0] < 0 || |
(texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) { |
_mesa_error(ctx, GL_INVALID_VALUE, |
"glTexParameter(param=%d)", params[0]); |
return GL_FALSE; |
} |
incomplete(ctx, texObj); |
texObj->BaseLevel = params[0]; |
return GL_TRUE; |
|
case GL_TEXTURE_MAX_LEVEL: |
if (texObj->MaxLevel == params[0]) |
return GL_FALSE; |
|
if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) { |
_mesa_error(ctx, GL_INVALID_VALUE, |
"glTexParameter(param=%d)", params[0]); |
return GL_FALSE; |
} |
incomplete(ctx, texObj); |
texObj->MaxLevel = params[0]; |
return GL_TRUE; |
|
case GL_GENERATE_MIPMAP_SGIS: |
if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) |
goto invalid_pname; |
|
if (params[0] && texObj->Target == GL_TEXTURE_EXTERNAL_OES) |
goto invalid_param; |
if (texObj->GenerateMipmap != params[0]) { |
/* no flush() */ |
texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE; |
return GL_TRUE; |
} |
return GL_FALSE; |
|
case GL_TEXTURE_COMPARE_MODE_ARB: |
if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow) |
|| _mesa_is_gles3(ctx)) { |
|
if (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
if (texObj->Sampler.CompareMode == params[0]) |
return GL_FALSE; |
if (params[0] == GL_NONE || |
params[0] == GL_COMPARE_R_TO_TEXTURE_ARB) { |
flush(ctx); |
texObj->Sampler.CompareMode = params[0]; |
return GL_TRUE; |
} |
goto invalid_param; |
} |
goto invalid_pname; |
|
case GL_TEXTURE_COMPARE_FUNC_ARB: |
if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.ARB_shadow) |
|| _mesa_is_gles3(ctx)) { |
|
if (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
if (texObj->Sampler.CompareFunc == params[0]) |
return GL_FALSE; |
switch (params[0]) { |
case GL_LEQUAL: |
case GL_GEQUAL: |
case GL_EQUAL: |
case GL_NOTEQUAL: |
case GL_LESS: |
case GL_GREATER: |
case GL_ALWAYS: |
case GL_NEVER: |
flush(ctx); |
texObj->Sampler.CompareFunc = params[0]; |
return GL_TRUE; |
default: |
goto invalid_param; |
} |
} |
goto invalid_pname; |
|
case GL_DEPTH_TEXTURE_MODE_ARB: |
/* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has never |
* existed in OpenGL ES. |
*/ |
if (ctx->API == API_OPENGL_COMPAT && ctx->Extensions.ARB_depth_texture) { |
if (texObj->DepthMode == params[0]) |
return GL_FALSE; |
if (params[0] == GL_LUMINANCE || |
params[0] == GL_INTENSITY || |
params[0] == GL_ALPHA || |
(ctx->Extensions.ARB_texture_rg && params[0] == GL_RED)) { |
flush(ctx); |
texObj->DepthMode = params[0]; |
return GL_TRUE; |
} |
goto invalid_param; |
} |
goto invalid_pname; |
|
case GL_TEXTURE_CROP_RECT_OES: |
if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture) |
goto invalid_pname; |
|
texObj->CropRect[0] = params[0]; |
texObj->CropRect[1] = params[1]; |
texObj->CropRect[2] = params[2]; |
texObj->CropRect[3] = params[3]; |
return GL_TRUE; |
|
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 ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle) |
|| _mesa_is_gles3(ctx)) { |
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 GL_FALSE; |
} |
ASSERT(comp < 4); |
|
flush(ctx); |
texObj->Swizzle[comp] = params[0]; |
set_swizzle_component(&texObj->_Swizzle, comp, swz); |
return GL_TRUE; |
} |
goto invalid_pname; |
|
case GL_TEXTURE_SWIZZLE_RGBA_EXT: |
if ((_mesa_is_desktop_gl(ctx) && ctx->Extensions.EXT_texture_swizzle) |
|| _mesa_is_gles3(ctx)) { |
GLuint comp; |
flush(ctx); |
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 GL_FALSE; |
} |
} |
return GL_TRUE; |
} |
goto invalid_pname; |
|
case GL_TEXTURE_SRGB_DECODE_EXT: |
if (_mesa_is_desktop_gl(ctx) |
&& ctx->Extensions.EXT_texture_sRGB_decode) { |
GLenum decode = params[0]; |
|
if (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
if (decode == GL_DECODE_EXT || decode == GL_SKIP_DECODE_EXT) { |
if (texObj->Sampler.sRGBDecode != decode) { |
flush(ctx); |
texObj->Sampler.sRGBDecode = decode; |
} |
return GL_TRUE; |
} |
} |
goto invalid_pname; |
|
case GL_TEXTURE_CUBE_MAP_SEAMLESS: |
if (_mesa_is_desktop_gl(ctx) |
&& ctx->Extensions.AMD_seamless_cubemap_per_texture) { |
GLenum param = params[0]; |
|
if (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
if (param != GL_TRUE && param != GL_FALSE) { |
goto invalid_param; |
} |
if (param != texObj->Sampler.CubeMapSeamless) { |
flush(ctx); |
texObj->Sampler.CubeMapSeamless = param; |
} |
return GL_TRUE; |
} |
goto invalid_pname; |
|
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; |
|
invalid_operation: |
_mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(pname=%s)", |
_mesa_lookup_enum_by_nr(pname)); |
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_MIN_LOD: |
if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
|
if (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
if (texObj->Sampler.MinLod == params[0]) |
return GL_FALSE; |
flush(ctx); |
texObj->Sampler.MinLod = params[0]; |
return GL_TRUE; |
|
case GL_TEXTURE_MAX_LOD: |
if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
|
if (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
if (texObj->Sampler.MaxLod == params[0]) |
return GL_FALSE; |
flush(ctx); |
texObj->Sampler.MaxLod = params[0]; |
return GL_TRUE; |
|
case GL_TEXTURE_PRIORITY: |
if (ctx->API != API_OPENGL_COMPAT) |
goto invalid_pname; |
|
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 (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
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) |
goto invalid_pname; |
} |
return GL_FALSE; |
|
case GL_TEXTURE_LOD_BIAS: |
/* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias. */ |
if (_mesa_is_gles(ctx)) |
goto invalid_pname; |
|
if (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
if (texObj->Sampler.LodBias != params[0]) { |
flush(ctx); |
texObj->Sampler.LodBias = params[0]; |
return GL_TRUE; |
} |
break; |
|
case GL_TEXTURE_BORDER_COLOR: |
if (!_mesa_is_desktop_gl(ctx)) |
goto invalid_pname; |
|
if (!target_allows_setting_sampler_parameters(texObj->Target)) |
goto invalid_operation; |
|
flush(ctx); |
/* ARB_texture_float disables clamping */ |
if (ctx->Extensions.ARB_texture_float) { |
texObj->Sampler.BorderColor.f[RCOMP] = params[0]; |
texObj->Sampler.BorderColor.f[GCOMP] = params[1]; |
texObj->Sampler.BorderColor.f[BCOMP] = params[2]; |
texObj->Sampler.BorderColor.f[ACOMP] = params[3]; |
} else { |
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: |
goto invalid_pname; |
} |
return GL_FALSE; |
|
invalid_pname: |
_mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=%s)", |
_mesa_lookup_enum_by_nr(pname)); |
return GL_FALSE; |
|
invalid_operation: |
_mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(pname=%s)", |
_mesa_lookup_enum_by_nr(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); |
|
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_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: |
case GL_TEXTURE_SRGB_DECODE_EXT: |
case GL_TEXTURE_CUBE_MAP_SEAMLESS: |
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] = (param > 0) ? |
((param > INT_MAX) ? INT_MAX : (GLint) (param + 0.5)) : |
((param < INT_MIN) ? INT_MIN : (GLint) (param - 0.5)); |
|
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, ¶m); |
} |
} |
|
|
void GLAPIENTRY |
_mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params) |
{ |
GLboolean need_update; |
struct gl_texture_object *texObj; |
GET_CURRENT_CONTEXT(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_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: |
case GL_TEXTURE_SRGB_DECODE_EXT: |
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_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]; |
need_update = set_tex_parameteri(ctx, texObj, pname, iparams); |
} |
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); |
|
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); |
|
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); |
|
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); |
|
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 */ |
} |
|
|
static GLboolean |
legal_get_tex_level_parameter_target(struct gl_context *ctx, GLenum target) |
{ |
switch (target) { |
case GL_TEXTURE_1D: |
case GL_PROXY_TEXTURE_1D: |
case GL_TEXTURE_2D: |
case GL_PROXY_TEXTURE_2D: |
case GL_TEXTURE_3D: |
case GL_PROXY_TEXTURE_3D: |
return GL_TRUE; |
case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: |
case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: |
case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: |
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: |
case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: |
case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: |
case GL_PROXY_TEXTURE_CUBE_MAP_ARB: |
return ctx->Extensions.ARB_texture_cube_map; |
case GL_TEXTURE_RECTANGLE_NV: |
case GL_PROXY_TEXTURE_RECTANGLE_NV: |
return ctx->Extensions.NV_texture_rectangle; |
case GL_TEXTURE_1D_ARRAY_EXT: |
case GL_PROXY_TEXTURE_1D_ARRAY_EXT: |
case GL_TEXTURE_2D_ARRAY_EXT: |
case GL_PROXY_TEXTURE_2D_ARRAY_EXT: |
return (ctx->Extensions.MESA_texture_array || |
ctx->Extensions.EXT_texture_array); |
case GL_TEXTURE_BUFFER: |
/* GetTexLevelParameter accepts GL_TEXTURE_BUFFER in GL 3.1+ contexts, |
* but not in earlier versions that expose ARB_texture_buffer_object. |
* |
* From the ARB_texture_buffer_object spec: |
* "(7) Do buffer textures support texture parameters (TexParameter) or |
* queries (GetTexParameter, GetTexLevelParameter, GetTexImage)? |
* |
* RESOLVED: No. [...] Note that the spec edits above don't add |
* explicit error language for any of these cases. That is because |
* each of the functions enumerate the set of valid <target> |
* parameters. Not editing the spec to allow TEXTURE_BUFFER_ARB in |
* these cases means that target is not legal, and an INVALID_ENUM |
* error should be generated." |
* |
* From the OpenGL 3.1 spec: |
* "target may also be TEXTURE_BUFFER, indicating the texture buffer." |
*/ |
return ctx->API == API_OPENGL_CORE && ctx->Version >= 31; |
case GL_TEXTURE_2D_MULTISAMPLE: |
case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: |
case GL_PROXY_TEXTURE_2D_MULTISAMPLE: |
case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY: |
return ctx->Extensions.ARB_texture_multisample; |
default: |
return GL_FALSE; |
} |
} |
|
|
static void |
get_tex_level_parameter_image(struct gl_context *ctx, |
const struct gl_texture_object *texObj, |
GLenum target, GLint level, |
GLenum pname, GLint *params) |
{ |
const struct gl_texture_image *img = NULL; |
gl_format texFormat; |
|
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: |
if (_mesa_is_format_compressed(texFormat)) { |
/* need to return the actual compressed format */ |
*params = _mesa_compressed_format_to_glenum(ctx, texFormat); |
} |
else { |
/* If the true internal format is not compressed but the user |
* requested a generic compressed format, we have to return the |
* generic base format that matches. |
* |
* From page 119 (page 129 of the PDF) of the OpenGL 1.3 spec: |
* |
* "If no specific compressed format is available, |
* internalformat is instead replaced by the corresponding base |
* internal format." |
* |
* Otherwise just return the user's requested internal format |
*/ |
const GLenum f = |
_mesa_gl_compressed_format_base_format(img->InternalFormat); |
|
*params = (f != 0) ? f : 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; |
case GL_TEXTURE_DEPTH_SIZE_ARB: |
if (!ctx->Extensions.ARB_depth_texture) |
goto invalid_pname; |
*params = _mesa_get_format_bits(texFormat, pname); |
break; |
case GL_TEXTURE_STENCIL_SIZE_EXT: |
if (!ctx->Extensions.EXT_packed_depth_stencil && |
!ctx->Extensions.ARB_framebuffer_object) |
goto invalid_pname; |
*params = _mesa_get_format_bits(texFormat, pname); |
break; |
case GL_TEXTURE_SHARED_SIZE: |
if (ctx->Version < 30 && |
!ctx->Extensions.EXT_texture_shared_exponent) |
goto invalid_pname; |
*params = texFormat == MESA_FORMAT_RGB9_E5_FLOAT ? 5 : 0; |
break; |
|
/* GL_ARB_texture_compression */ |
case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: |
if (_mesa_is_format_compressed(texFormat) && |
!_mesa_is_proxy_texture(target)) { |
*params = _mesa_format_image_size(texFormat, img->Width, |
img->Height, img->Depth); |
} |
else { |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"glGetTexLevelParameter[if]v(pname)"); |
} |
break; |
case GL_TEXTURE_COMPRESSED: |
*params = (GLint) _mesa_is_format_compressed(texFormat); |
break; |
|
/* GL_ARB_texture_float */ |
case GL_TEXTURE_RED_TYPE_ARB: |
case GL_TEXTURE_GREEN_TYPE_ARB: |
case GL_TEXTURE_BLUE_TYPE_ARB: |
case GL_TEXTURE_ALPHA_TYPE_ARB: |
case GL_TEXTURE_LUMINANCE_TYPE_ARB: |
case GL_TEXTURE_INTENSITY_TYPE_ARB: |
case GL_TEXTURE_DEPTH_TYPE_ARB: |
if (!ctx->Extensions.ARB_texture_float) |
goto invalid_pname; |
if (_mesa_base_format_has_channel(img->_BaseFormat, pname)) |
*params = _mesa_get_format_datatype(texFormat); |
else |
*params = GL_NONE; |
break; |
|
/* GL_ARB_texture_multisample */ |
case GL_TEXTURE_SAMPLES: |
if (!ctx->Extensions.ARB_texture_multisample) |
goto invalid_pname; |
*params = img->NumSamples; |
break; |
|
case GL_TEXTURE_FIXED_SAMPLE_LOCATIONS: |
if (!ctx->Extensions.ARB_texture_multisample) |
goto invalid_pname; |
*params = img->FixedSampleLocations; |
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)); |
} |
|
|
static void |
get_tex_level_parameter_buffer(struct gl_context *ctx, |
const struct gl_texture_object *texObj, |
GLenum pname, GLint *params) |
{ |
const struct gl_buffer_object *bo = texObj->BufferObject; |
gl_format texFormat = texObj->_BufferObjectFormat; |
GLenum internalFormat = texObj->BufferObjectFormat; |
GLenum baseFormat = _mesa_get_format_base_format(texFormat); |
|
if (!bo) { |
/* undefined texture buffer object */ |
*params = pname == GL_TEXTURE_COMPONENTS ? 1 : 0; |
return; |
} |
|
switch (pname) { |
case GL_TEXTURE_BUFFER_DATA_STORE_BINDING: |
*params = bo->Name; |
break; |
case GL_TEXTURE_WIDTH: |
*params = bo->Size; |
break; |
case GL_TEXTURE_HEIGHT: |
case GL_TEXTURE_DEPTH: |
case GL_TEXTURE_BORDER: |
case GL_TEXTURE_SHARED_SIZE: |
case GL_TEXTURE_COMPRESSED: |
*params = 0; |
break; |
case GL_TEXTURE_INTERNAL_FORMAT: |
*params = internalFormat; |
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(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(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; |
case GL_TEXTURE_DEPTH_SIZE_ARB: |
case GL_TEXTURE_STENCIL_SIZE_EXT: |
*params = _mesa_get_format_bits(texFormat, pname); |
break; |
|
/* GL_ARB_texture_buffer_range */ |
case GL_TEXTURE_BUFFER_OFFSET: |
if (!ctx->Extensions.ARB_texture_buffer_range) |
goto invalid_pname; |
*params = texObj->BufferOffset; |
break; |
case GL_TEXTURE_BUFFER_SIZE: |
if (!ctx->Extensions.ARB_texture_buffer_range) |
goto invalid_pname; |
*params = (texObj->BufferSize == -1) ? bo->Size : texObj->BufferSize; |
break; |
|
/* GL_ARB_texture_compression */ |
case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: |
/* Always illegal for GL_TEXTURE_BUFFER */ |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"glGetTexLevelParameter[if]v(pname)"); |
break; |
|
/* GL_ARB_texture_float */ |
case GL_TEXTURE_RED_TYPE_ARB: |
case GL_TEXTURE_GREEN_TYPE_ARB: |
case GL_TEXTURE_BLUE_TYPE_ARB: |
case GL_TEXTURE_ALPHA_TYPE_ARB: |
case GL_TEXTURE_LUMINANCE_TYPE_ARB: |
case GL_TEXTURE_INTENSITY_TYPE_ARB: |
case GL_TEXTURE_DEPTH_TYPE_ARB: |
if (!ctx->Extensions.ARB_texture_float) |
goto invalid_pname; |
if (_mesa_base_format_has_channel(baseFormat, pname)) |
*params = _mesa_get_format_datatype(texFormat); |
else |
*params = GL_NONE; |
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_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 ) |
{ |
const struct gl_texture_unit *texUnit; |
struct gl_texture_object *texObj; |
GLint maxLevels; |
GET_CURRENT_CONTEXT(ctx); |
|
if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) { |
_mesa_error(ctx, GL_INVALID_OPERATION, |
"glGetTexLevelParameteriv(current unit)"); |
return; |
} |
|
texUnit = _mesa_get_current_tex_unit(ctx); |
|
if (!legal_get_tex_level_parameter_target(ctx, target)) { |
_mesa_error(ctx, GL_INVALID_ENUM, |
"glGetTexLevelParameter[if]v(target=0x%x)", target); |
return; |
} |
|
maxLevels = _mesa_max_texture_levels(ctx, target); |
assert(maxLevels != 0); |
|
if (level < 0 || level >= maxLevels) { |
_mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); |
return; |
} |
|
texObj = _mesa_select_tex_object(ctx, texUnit, target); |
|
if (target == GL_TEXTURE_BUFFER) |
get_tex_level_parameter_buffer(ctx, texObj, pname, params); |
else |
get_tex_level_parameter_image(ctx, texObj, target, level, pname, params); |
} |
|
|
void GLAPIENTRY |
_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) |
{ |
struct gl_texture_object *obj; |
GET_CURRENT_CONTEXT(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 (!_mesa_is_desktop_gl(ctx)) |
goto invalid_pname; |
|
if (ctx->NewState & (_NEW_BUFFERS | _NEW_FRAG_CLAMP)) |
_mesa_update_state_locked(ctx); |
if (_mesa_get_clamp_fragment_color(ctx)) { |
params[0] = CLAMP(obj->Sampler.BorderColor.f[0], 0.0F, 1.0F); |
params[1] = CLAMP(obj->Sampler.BorderColor.f[1], 0.0F, 1.0F); |
params[2] = CLAMP(obj->Sampler.BorderColor.f[2], 0.0F, 1.0F); |
params[3] = CLAMP(obj->Sampler.BorderColor.f[3], 0.0F, 1.0F); |
} |
else { |
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: |
if (ctx->API != API_OPENGL_COMPAT) |
goto invalid_pname; |
|
*params = 1.0F; |
break; |
case GL_TEXTURE_PRIORITY: |
if (ctx->API != API_OPENGL_COMPAT) |
goto invalid_pname; |
|
*params = obj->Priority; |
break; |
case GL_TEXTURE_MIN_LOD: |
if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
|
*params = obj->Sampler.MinLod; |
break; |
case GL_TEXTURE_MAX_LOD: |
if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
|
*params = obj->Sampler.MaxLod; |
break; |
case GL_TEXTURE_BASE_LEVEL: |
if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
|
*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) |
goto invalid_pname; |
*params = obj->Sampler.MaxAnisotropy; |
break; |
case GL_GENERATE_MIPMAP_SGIS: |
if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) |
goto invalid_pname; |
|
*params = (GLfloat) obj->GenerateMipmap; |
break; |
case GL_TEXTURE_COMPARE_MODE_ARB: |
if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow) |
&& !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
*params = (GLfloat) obj->Sampler.CompareMode; |
break; |
case GL_TEXTURE_COMPARE_FUNC_ARB: |
if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow) |
&& !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
*params = (GLfloat) obj->Sampler.CompareFunc; |
break; |
case GL_DEPTH_TEXTURE_MODE_ARB: |
/* GL_DEPTH_TEXTURE_MODE_ARB is removed in core-profile and it has |
* never existed in OpenGL ES. |
*/ |
if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture) |
goto invalid_pname; |
*params = (GLfloat) obj->DepthMode; |
break; |
case GL_TEXTURE_LOD_BIAS: |
if (_mesa_is_gles(ctx)) |
goto invalid_pname; |
|
*params = obj->Sampler.LodBias; |
break; |
case GL_TEXTURE_CROP_RECT_OES: |
if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture) |
goto invalid_pname; |
|
params[0] = (GLfloat) obj->CropRect[0]; |
params[1] = (GLfloat) obj->CropRect[1]; |
params[2] = (GLfloat) obj->CropRect[2]; |
params[3] = (GLfloat) obj->CropRect[3]; |
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: |
if ((!_mesa_is_desktop_gl(ctx) |
|| !ctx->Extensions.EXT_texture_swizzle) |
&& !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
*params = (GLfloat) obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT]; |
break; |
|
case GL_TEXTURE_SWIZZLE_RGBA_EXT: |
if ((!_mesa_is_desktop_gl(ctx) |
|| !ctx->Extensions.EXT_texture_swizzle) |
&& !_mesa_is_gles3(ctx)) { |
goto invalid_pname; |
} |
else { |
GLuint comp; |
for (comp = 0; comp < 4; comp++) { |
params[comp] = (GLfloat) obj->Swizzle[comp]; |
} |
} |
break; |
|
case GL_TEXTURE_CUBE_MAP_SEAMLESS: |
if (!_mesa_is_desktop_gl(ctx) |
|| !ctx->Extensions.AMD_seamless_cubemap_per_texture) |
goto invalid_pname; |
*params = (GLfloat) obj->Sampler.CubeMapSeamless; |
break; |
|
case GL_TEXTURE_IMMUTABLE_FORMAT: |
*params = (GLfloat) obj->Immutable; |
break; |
|
case GL_TEXTURE_IMMUTABLE_LEVELS: |
if (!_mesa_is_gles3(ctx)) |
goto invalid_pname; |
*params = (GLfloat) obj->ImmutableLevels; |
break; |
|
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES: |
if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external) |
goto invalid_pname; |
*params = (GLfloat) obj->RequiredTextureImageUnits; |
break; |
|
case GL_TEXTURE_SRGB_DECODE_EXT: |
if (!ctx->Extensions.EXT_texture_sRGB_decode) |
goto invalid_pname; |
*params = (GLfloat) obj->Sampler.sRGBDecode; |
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); |
|
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: |
if (!_mesa_is_desktop_gl(ctx)) |
goto invalid_pname; |
|
{ |
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: |
if (ctx->API != API_OPENGL_COMPAT) |
goto invalid_pname; |
|
*params = 1; |
break; |
case GL_TEXTURE_PRIORITY: |
if (ctx->API != API_OPENGL_COMPAT) |
goto invalid_pname; |
|
*params = FLOAT_TO_INT(obj->Priority); |
break; |
case GL_TEXTURE_MIN_LOD: |
if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
|
*params = (GLint) obj->Sampler.MinLod; |
break; |
case GL_TEXTURE_MAX_LOD: |
if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
|
*params = (GLint) obj->Sampler.MaxLod; |
break; |
case GL_TEXTURE_BASE_LEVEL: |
if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
|
*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) |
goto invalid_pname; |
*params = (GLint) obj->Sampler.MaxAnisotropy; |
break; |
case GL_GENERATE_MIPMAP_SGIS: |
if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES) |
goto invalid_pname; |
|
*params = (GLint) obj->GenerateMipmap; |
break; |
case GL_TEXTURE_COMPARE_MODE_ARB: |
if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow) |
&& !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
*params = (GLint) obj->Sampler.CompareMode; |
break; |
case GL_TEXTURE_COMPARE_FUNC_ARB: |
if ((!_mesa_is_desktop_gl(ctx) || !ctx->Extensions.ARB_shadow) |
&& !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
*params = (GLint) obj->Sampler.CompareFunc; |
break; |
case GL_DEPTH_TEXTURE_MODE_ARB: |
if (ctx->API != API_OPENGL_COMPAT || !ctx->Extensions.ARB_depth_texture) |
goto invalid_pname; |
*params = (GLint) obj->DepthMode; |
break; |
case GL_TEXTURE_LOD_BIAS: |
if (_mesa_is_gles(ctx)) |
goto invalid_pname; |
|
/* GL spec 'Data Conversions' section specifies that floating-point |
* value in integer Get function is rounded to nearest integer |
*/ |
*params = (GLint) roundf(obj->Sampler.LodBias); |
break; |
case GL_TEXTURE_CROP_RECT_OES: |
if (ctx->API != API_OPENGLES || !ctx->Extensions.OES_draw_texture) |
goto invalid_pname; |
|
params[0] = obj->CropRect[0]; |
params[1] = obj->CropRect[1]; |
params[2] = obj->CropRect[2]; |
params[3] = obj->CropRect[3]; |
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: |
if ((!_mesa_is_desktop_gl(ctx) |
|| !ctx->Extensions.EXT_texture_swizzle) |
&& !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
*params = obj->Swizzle[pname - GL_TEXTURE_SWIZZLE_R_EXT]; |
break; |
|
case GL_TEXTURE_SWIZZLE_RGBA_EXT: |
if ((!_mesa_is_desktop_gl(ctx) |
|| !ctx->Extensions.EXT_texture_swizzle) |
&& !_mesa_is_gles3(ctx)) |
goto invalid_pname; |
COPY_4V(params, obj->Swizzle); |
break; |
|
case GL_TEXTURE_CUBE_MAP_SEAMLESS: |
if (!_mesa_is_desktop_gl(ctx) |
|| !ctx->Extensions.AMD_seamless_cubemap_per_texture) |
goto invalid_pname; |
*params = (GLint) obj->Sampler.CubeMapSeamless; |
break; |
|
case GL_TEXTURE_IMMUTABLE_FORMAT: |
*params = (GLint) obj->Immutable; |
break; |
|
case GL_TEXTURE_IMMUTABLE_LEVELS: |
if (!_mesa_is_gles3(ctx)) |
goto invalid_pname; |
*params = obj->ImmutableLevels; |
break; |
|
case GL_REQUIRED_TEXTURE_IMAGE_UNITS_OES: |
if (!_mesa_is_gles(ctx) || !ctx->Extensions.OES_EGL_image_external) |
goto invalid_pname; |
*params = obj->RequiredTextureImageUnits; |
break; |
|
case GL_TEXTURE_SRGB_DECODE_EXT: |
if (!ctx->Extensions.EXT_texture_sRGB_decode) |
goto invalid_pname; |
*params = obj->Sampler.sRGBDecode; |
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); |
|
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); |
|
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]; |
} |
} |
} |
} |