diff options
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/main/texobj.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/main/texobj.c | 1000 |
1 files changed, 0 insertions, 1000 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/main/texobj.c b/nx-X11/extras/Mesa/src/mesa/main/texobj.c deleted file mode 100644 index 5594cd938..000000000 --- a/nx-X11/extras/Mesa/src/mesa/main/texobj.c +++ /dev/null @@ -1,1000 +0,0 @@ -/** - * \file texobj.c - * Texture object management. - */ - -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2005 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - - -#include "glheader.h" -#include "colortab.h" -#include "context.h" -#include "enums.h" -#include "hash.h" -#include "imports.h" -#include "macros.h" -#include "teximage.h" -#include "texstate.h" -#include "texobj.h" -#include "mtypes.h" - - -/**********************************************************************/ -/** \name Internal functions */ -/*@{*/ - -/** - * Allocate and initialize a new texture object. But don't put it into the - * texture object hash table. - * - * Called via ctx->Driver.NewTextureObject, unless overridden by a device - * driver. - * - * \param shared the shared GL state structure to contain the texture object - * \param name integer name for the texture object - * \param target either GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, - * GL_TEXTURE_CUBE_MAP_ARB or GL_TEXTURE_RECTANGLE_NV. zero is ok for the sake - * of GenTextures() - * - * \return pointer to new texture object. - */ -struct gl_texture_object * -_mesa_new_texture_object( GLcontext *ctx, GLuint name, GLenum target ) -{ - struct gl_texture_object *obj; - (void) ctx; - obj = MALLOC_STRUCT(gl_texture_object); - _mesa_initialize_texture_object(obj, name, target); - return obj; -} - - -/** - * Initialize a new texture object to default values. - * \param obj the texture object - * \param name the texture name - * \param target the texture target - */ -void -_mesa_initialize_texture_object( struct gl_texture_object *obj, - GLuint name, GLenum target ) -{ - ASSERT(target == 0 || - target == GL_TEXTURE_1D || - target == GL_TEXTURE_2D || - target == GL_TEXTURE_3D || - target == GL_TEXTURE_CUBE_MAP_ARB || - target == GL_TEXTURE_RECTANGLE_NV); - - _mesa_bzero(obj, sizeof(*obj)); - /* init the non-zero fields */ - _glthread_INIT_MUTEX(obj->Mutex); - obj->RefCount = 1; - obj->Name = name; - obj->Target = target; - obj->Priority = 1.0F; - if (target == GL_TEXTURE_RECTANGLE_NV) { - obj->WrapS = GL_CLAMP_TO_EDGE; - obj->WrapT = GL_CLAMP_TO_EDGE; - obj->WrapR = GL_CLAMP_TO_EDGE; - obj->MinFilter = GL_LINEAR; - } - else { - obj->WrapS = GL_REPEAT; - obj->WrapT = GL_REPEAT; - obj->WrapR = GL_REPEAT; - obj->MinFilter = GL_NEAREST_MIPMAP_LINEAR; - } - obj->MagFilter = GL_LINEAR; - obj->MinLod = -1000.0; - obj->MaxLod = 1000.0; - obj->LodBias = 0.0; - obj->BaseLevel = 0; - obj->MaxLevel = 1000; - obj->MaxAnisotropy = 1.0; - obj->CompareFlag = GL_FALSE; /* SGIX_shadow */ - obj->CompareOperator = GL_TEXTURE_LEQUAL_R_SGIX; /* SGIX_shadow */ - obj->CompareMode = GL_NONE; /* ARB_shadow */ - obj->CompareFunc = GL_LEQUAL; /* ARB_shadow */ - obj->DepthMode = GL_LUMINANCE; /* ARB_depth_texture */ - obj->ShadowAmbient = 0.0F; /* ARB/SGIX_shadow_ambient */ - _mesa_init_colortable(&obj->Palette); -} - - -/** - * Deallocate a texture object struct. It should have already been - * removed from the texture object pool. - * - * \param shared the shared GL state to which the object belongs. - * \param texOjb the texture object to delete. - */ -void -_mesa_delete_texture_object( GLcontext *ctx, struct gl_texture_object *texObj ) -{ - GLuint i, face; - - (void) ctx; - - _mesa_free_colortable_data(&texObj->Palette); - - /* free the texture images */ - for (face = 0; face < 6; face++) { - for (i = 0; i < MAX_TEXTURE_LEVELS; i++) { - if (texObj->Image[face][i]) { - _mesa_delete_texture_image( ctx, texObj->Image[face][i] ); - } - } - } - - /* destroy the mutex -- it may have allocated memory (eg on bsd) */ - _glthread_DESTROY_MUTEX(texObj->Mutex); - - /* free this object */ - _mesa_free(texObj); -} - - - - -/** - * Copy texture object state from one texture object to another. - * Use for glPush/PopAttrib. - * - * \param dest destination texture object. - * \param src source texture object. - */ -void -_mesa_copy_texture_object( struct gl_texture_object *dest, - const struct gl_texture_object *src ) -{ - dest->Name = src->Name; - dest->Priority = src->Priority; - dest->BorderColor[0] = src->BorderColor[0]; - dest->BorderColor[1] = src->BorderColor[1]; - dest->BorderColor[2] = src->BorderColor[2]; - dest->BorderColor[3] = src->BorderColor[3]; - dest->WrapS = src->WrapS; - dest->WrapT = src->WrapT; - dest->WrapR = src->WrapR; - dest->MinFilter = src->MinFilter; - dest->MagFilter = src->MagFilter; - dest->MinLod = src->MinLod; - dest->MaxLod = src->MaxLod; - dest->LodBias = src->LodBias; - dest->BaseLevel = src->BaseLevel; - dest->MaxLevel = src->MaxLevel; - dest->MaxAnisotropy = src->MaxAnisotropy; - dest->CompareFlag = src->CompareFlag; - dest->CompareOperator = src->CompareOperator; - dest->ShadowAmbient = src->ShadowAmbient; - dest->CompareMode = src->CompareMode; - dest->CompareFunc = src->CompareFunc; - dest->DepthMode = src->DepthMode; - dest->_MaxLevel = src->_MaxLevel; - dest->_MaxLambda = src->_MaxLambda; - dest->GenerateMipmap = src->GenerateMipmap; - dest->Palette = src->Palette; - dest->Complete = src->Complete; - dest->_IsPowerOfTwo = src->_IsPowerOfTwo; -} - - -/** - * Report why a texture object is incomplete. - * - * \param t texture object. - * \param why string describing why it's incomplete. - * - * \note For debug purposes only. - */ -#if 0 -static void -incomplete(const struct gl_texture_object *t, const char *why) -{ - _mesa_printf("Texture Obj %d incomplete because: %s\n", t->Name, why); -} -#else -#define incomplete(t, why) -#endif - - -/** - * Examine a texture object to determine if it is complete. - * - * The gl_texture_object::Complete flag will be set to GL_TRUE or GL_FALSE - * accordingly. - * - * \param ctx GL context. - * \param t texture object. - * - * According to the texture target, verifies that each of the mipmaps is - * present and has the expected size. - */ -void -_mesa_test_texobj_completeness( const GLcontext *ctx, - struct gl_texture_object *t ) -{ - const GLint baseLevel = t->BaseLevel; - GLint maxLog2 = 0, maxLevels = 0; - - t->Complete = GL_TRUE; /* be optimistic */ - t->_IsPowerOfTwo = GL_TRUE; /* may be set FALSE below */ - - /* Always need the base level image */ - if (!t->Image[0][baseLevel]) { - char s[100]; - sprintf(s, "obj %p (%d) Image[baseLevel=%d] == NULL", - (void *) t, t->Name, baseLevel); - incomplete(t, s); - t->Complete = GL_FALSE; - return; - } - - /* Check width/height/depth for zero */ - if (t->Image[0][baseLevel]->Width == 0 || - t->Image[0][baseLevel]->Height == 0 || - t->Image[0][baseLevel]->Depth == 0) { - incomplete(t, "texture width = 0"); - t->Complete = GL_FALSE; - return; - } - - /* Compute _MaxLevel */ - if (t->Target == GL_TEXTURE_1D) { - maxLog2 = t->Image[0][baseLevel]->WidthLog2; - maxLevels = ctx->Const.MaxTextureLevels; - } - else if (t->Target == GL_TEXTURE_2D) { - maxLog2 = MAX2(t->Image[0][baseLevel]->WidthLog2, - t->Image[0][baseLevel]->HeightLog2); - maxLevels = ctx->Const.MaxTextureLevels; - } - else if (t->Target == GL_TEXTURE_3D) { - GLint max = MAX2(t->Image[0][baseLevel]->WidthLog2, - t->Image[0][baseLevel]->HeightLog2); - maxLog2 = MAX2(max, (GLint)(t->Image[0][baseLevel]->DepthLog2)); - maxLevels = ctx->Const.Max3DTextureLevels; - } - else if (t->Target == GL_TEXTURE_CUBE_MAP_ARB) { - maxLog2 = MAX2(t->Image[0][baseLevel]->WidthLog2, - t->Image[0][baseLevel]->HeightLog2); - maxLevels = ctx->Const.MaxCubeTextureLevels; - } - else if (t->Target == GL_TEXTURE_RECTANGLE_NV) { - maxLog2 = 0; /* not applicable */ - maxLevels = 1; /* no mipmapping */ - } - else { - _mesa_problem(ctx, "Bad t->Target in _mesa_test_texobj_completeness"); - return; - } - - ASSERT(maxLevels > 0); - - t->_MaxLevel = baseLevel + maxLog2; - t->_MaxLevel = MIN2(t->_MaxLevel, t->MaxLevel); - t->_MaxLevel = MIN2(t->_MaxLevel, maxLevels - 1); - - /* Compute _MaxLambda = q - b (see the 1.2 spec) used during mipmapping */ - t->_MaxLambda = (GLfloat) (t->_MaxLevel - t->BaseLevel); - - if (t->Target == GL_TEXTURE_CUBE_MAP_ARB) { - /* make sure that all six cube map level 0 images are the same size */ - const GLuint w = t->Image[0][baseLevel]->Width2; - const GLuint h = t->Image[0][baseLevel]->Height2; - GLuint face; - for (face = 1; face < 6; face++) { - if (t->Image[face][baseLevel] == NULL || - t->Image[face][baseLevel]->Width2 != w || - t->Image[face][baseLevel]->Height2 != h) { - t->Complete = GL_FALSE; - incomplete(t, "Non-quare cubemap image"); - return; - } - } - } - - /* check for non power of two */ - if (!t->Image[0][baseLevel]->_IsPowerOfTwo) { - t->_IsPowerOfTwo = GL_FALSE; - } - - /* extra checking for mipmaps */ - if (t->MinFilter != GL_NEAREST && t->MinFilter != GL_LINEAR) { - /* - * Mipmapping: determine if we have a complete set of mipmaps - */ - GLint i; - GLint minLevel = baseLevel; - GLint maxLevel = t->_MaxLevel; - - if (minLevel > maxLevel) { - t->Complete = GL_FALSE; - incomplete(t, "minLevel > maxLevel"); - return; - } - - /* Test dimension-independent attributes */ - for (i = minLevel; i <= maxLevel; i++) { - if (t->Image[0][i]) { - if (t->Image[0][i]->TexFormat != t->Image[0][baseLevel]->TexFormat) { - t->Complete = GL_FALSE; - incomplete(t, "Format[i] != Format[baseLevel]"); - return; - } - if (t->Image[0][i]->Border != t->Image[0][baseLevel]->Border) { - t->Complete = GL_FALSE; - incomplete(t, "Border[i] != Border[baseLevel]"); - return; - } - } - } - - /* Test things which depend on number of texture image dimensions */ - if (t->Target == GL_TEXTURE_1D) { - /* Test 1-D mipmaps */ - GLuint width = t->Image[0][baseLevel]->Width2; - for (i = baseLevel + 1; i < maxLevels; i++) { - if (width > 1) { - width /= 2; - } - if (i >= minLevel && i <= maxLevel) { - if (!t->Image[0][i]) { - t->Complete = GL_FALSE; - incomplete(t, "1D Image[0][i] == NULL"); - return; - } - if (t->Image[0][i]->Width2 != width ) { - t->Complete = GL_FALSE; - incomplete(t, "1D Image[0][i] bad width"); - return; - } - } - if (width == 1) { - return; /* found smallest needed mipmap, all done! */ - } - } - } - else if (t->Target == GL_TEXTURE_2D) { - /* Test 2-D mipmaps */ - GLuint width = t->Image[0][baseLevel]->Width2; - GLuint height = t->Image[0][baseLevel]->Height2; - for (i = baseLevel + 1; i < maxLevels; i++) { - if (width > 1) { - width /= 2; - } - if (height > 1) { - height /= 2; - } - if (i >= minLevel && i <= maxLevel) { - if (!t->Image[0][i]) { - t->Complete = GL_FALSE; - incomplete(t, "2D Image[0][i] == NULL"); - return; - } - if (t->Image[0][i]->Width2 != width) { - t->Complete = GL_FALSE; - incomplete(t, "2D Image[0][i] bad width"); - return; - } - if (t->Image[0][i]->Height2 != height) { - t->Complete = GL_FALSE; - incomplete(t, "2D Image[0][i] bad height"); - return; - } - if (width==1 && height==1) { - return; /* found smallest needed mipmap, all done! */ - } - } - } - } - else if (t->Target == GL_TEXTURE_3D) { - /* Test 3-D mipmaps */ - GLuint width = t->Image[0][baseLevel]->Width2; - GLuint height = t->Image[0][baseLevel]->Height2; - GLuint depth = t->Image[0][baseLevel]->Depth2; - for (i = baseLevel + 1; i < maxLevels; i++) { - if (width > 1) { - width /= 2; - } - if (height > 1) { - height /= 2; - } - if (depth > 1) { - depth /= 2; - } - if (i >= minLevel && i <= maxLevel) { - if (!t->Image[0][i]) { - incomplete(t, "3D Image[0][i] == NULL"); - t->Complete = GL_FALSE; - return; - } - if (t->Image[0][i]->Format == GL_DEPTH_COMPONENT) { - t->Complete = GL_FALSE; - incomplete(t, "GL_DEPTH_COMPONENT only works with 1/2D tex"); - return; - } - if (t->Image[0][i]->Width2 != width) { - t->Complete = GL_FALSE; - incomplete(t, "3D Image[0][i] bad width"); - return; - } - if (t->Image[0][i]->Height2 != height) { - t->Complete = GL_FALSE; - incomplete(t, "3D Image[0][i] bad height"); - return; - } - if (t->Image[0][i]->Depth2 != depth) { - t->Complete = GL_FALSE; - incomplete(t, "3D Image[0][i] bad depth"); - return; - } - } - if (width == 1 && height == 1 && depth == 1) { - return; /* found smallest needed mipmap, all done! */ - } - } - } - else if (t->Target == GL_TEXTURE_CUBE_MAP_ARB) { - /* make sure 6 cube faces are consistant */ - GLuint width = t->Image[0][baseLevel]->Width2; - GLuint height = t->Image[0][baseLevel]->Height2; - for (i = baseLevel + 1; i < maxLevels; i++) { - if (width > 1) { - width /= 2; - } - if (height > 1) { - height /= 2; - } - if (i >= minLevel && i <= maxLevel) { - GLuint face; - for (face = 0; face < 6; face++) { - /* check that we have images defined */ - if (!t->Image[face][i]) { - t->Complete = GL_FALSE; - incomplete(t, "CubeMap Image[n][i] == NULL"); - return; - } - /* Don't support GL_DEPTH_COMPONENT for cube maps */ - if (t->Image[face][i]->Format == GL_DEPTH_COMPONENT) { - t->Complete = GL_FALSE; - incomplete(t, "GL_DEPTH_COMPONENT only works with 1/2D tex"); - return; - } - /* check that all six images have same size */ - if (t->Image[face][i]->Width2!=width || - t->Image[face][i]->Height2!=height) { - t->Complete = GL_FALSE; - incomplete(t, "CubeMap Image[n][i] bad size"); - return; - } - } - } - if (width == 1 && height == 1) { - return; /* found smallest needed mipmap, all done! */ - } - } - } - else if (t->Target == GL_TEXTURE_RECTANGLE_NV) { - /* XXX special checking? */ - } - else { - /* Target = ??? */ - _mesa_problem(ctx, "Bug in gl_test_texture_object_completeness\n"); - } - } -} - -/*@}*/ - - -/***********************************************************************/ -/** \name API functions */ -/*@{*/ - -/** - * Texture name generation lock. - * - * Used by _mesa_GenTextures() to guarantee that the generation and allocation - * of texture IDs is atomic. - */ -_glthread_DECLARE_STATIC_MUTEX(GenTexturesLock); - -/** - * Generate texture names. - * - * \param n number of texture names to be generated. - * \param textures an array in which will hold the generated texture names. - * - * \sa glGenTextures(). - * - * While holding the GenTexturesLock lock, calls _mesa_HashFindFreeKeyBlock() - * to find a block of free texture IDs which are stored in \p textures. - * Corresponding empty texture objects are also generated. - */ -void GLAPIENTRY -_mesa_GenTextures( GLsizei n, GLuint *textures ) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint first; - GLint i; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (n < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glGenTextures" ); - return; - } - - if (!textures) - return; - - /* - * This must be atomic (generation and allocation of texture IDs) - */ - _glthread_LOCK_MUTEX(GenTexturesLock); - - first = _mesa_HashFindFreeKeyBlock(ctx->Shared->TexObjects, n); - - /* Allocate new, empty texture objects */ - for (i = 0; i < n; i++) { - struct gl_texture_object *texObj; - GLuint name = first + i; - GLenum target = 0; - texObj = (*ctx->Driver.NewTextureObject)( ctx, name, target); - if (!texObj) { - _glthread_UNLOCK_MUTEX(GenTexturesLock); - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glGenTextures"); - return; - } - - /* insert into hash table */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - _mesa_HashInsert(ctx->Shared->TexObjects, texObj->Name, texObj); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - - textures[i] = name; - } - - _glthread_UNLOCK_MUTEX(GenTexturesLock); -} - - -/** - * Delete named textures. - * - * \param n number of textures to be deleted. - * \param textures array of texture IDs to be deleted. - * - * \sa glDeleteTextures(). - * - * If we're about to delete a texture that's currently bound to any - * texture unit, unbind the texture first. Decrement the reference - * count on the texture object and delete it if it's zero. - * Recall that texture objects can be shared among several rendering - * contexts. - */ -void GLAPIENTRY -_mesa_DeleteTextures( GLsizei n, const GLuint *textures) -{ - GET_CURRENT_CONTEXT(ctx); - GLint i; - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); /* too complex */ - - if (!textures) - return; - - for (i = 0; i < n; i++) { - if (textures[i] > 0) { - struct gl_texture_object *delObj = (struct gl_texture_object *) - _mesa_HashLookup(ctx->Shared->TexObjects, textures[i]); - if (delObj) { - /* First check if this texture is currently bound. - * If so, unbind it and decrement the reference count. - * XXX all RefCount accesses should be protected by a mutex. - */ - GLuint u; - for (u = 0; u < MAX_TEXTURE_IMAGE_UNITS; u++) { - struct gl_texture_unit *unit = &ctx->Texture.Unit[u]; - if (delObj == unit->Current1D) { - unit->Current1D = ctx->Shared->Default1D; - ctx->Shared->Default1D->RefCount++; - delObj->RefCount--; - if (delObj == unit->_Current) - unit->_Current = unit->Current1D; - } - else if (delObj == unit->Current2D) { - unit->Current2D = ctx->Shared->Default2D; - ctx->Shared->Default2D->RefCount++; - delObj->RefCount--; - if (delObj == unit->_Current) - unit->_Current = unit->Current2D; - } - else if (delObj == unit->Current3D) { - unit->Current3D = ctx->Shared->Default3D; - ctx->Shared->Default3D->RefCount++; - delObj->RefCount--; - if (delObj == unit->_Current) - unit->_Current = unit->Current3D; - } - else if (delObj == unit->CurrentCubeMap) { - unit->CurrentCubeMap = ctx->Shared->DefaultCubeMap; - ctx->Shared->DefaultCubeMap->RefCount++; - delObj->RefCount--; - if (delObj == unit->_Current) - unit->_Current = unit->CurrentCubeMap; - } - else if (delObj == unit->CurrentRect) { - unit->CurrentRect = ctx->Shared->DefaultRect; - ctx->Shared->DefaultRect->RefCount++; - delObj->RefCount--; - if (delObj == unit->_Current) - unit->_Current = unit->CurrentRect; - } - } - ctx->NewState |= _NEW_TEXTURE; - - /* The texture _name_ is now free for re-use. - * Remove it from the hash table now. - */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - _mesa_HashRemove(ctx->Shared->TexObjects, delObj->Name); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - - /* The actual texture object will not be freed until it's no - * longer bound in any context. - * XXX all RefCount accesses should be protected by a mutex. - */ - delObj->RefCount--; - if (delObj->RefCount == 0) { - ASSERT(delObj->Name != 0); /* Never delete default tex objs */ - ASSERT(ctx->Driver.DeleteTexture); - (*ctx->Driver.DeleteTexture)(ctx, delObj); - } - } - } - } -} - - -/** - * Bind a named texture to a texturing target. - * - * \param target texture target. - * \param texName texture name. - * - * \sa glBindTexture(). - * - * Determines the old texture object bound and returns immediately if rebinding - * the same texture. Get the current texture which is either a default texture - * if name is null, a named texture from the hash, or a new texture if the - * given texture name is new. Increments its reference count, binds it, and - * calls dd_function_table::BindTexture. Decrements the old texture reference - * count and deletes it if it reaches zero. - */ -void GLAPIENTRY -_mesa_BindTexture( GLenum target, GLuint texName ) -{ - GET_CURRENT_CONTEXT(ctx); - GLuint unit = ctx->Texture.CurrentUnit; - struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit]; - struct gl_texture_object *oldTexObj; - struct gl_texture_object *newTexObj = NULL; - ASSERT_OUTSIDE_BEGIN_END(ctx); - - if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) - _mesa_debug(ctx, "glBindTexture %s %d\n", - _mesa_lookup_enum_by_nr(target), (GLint) texName); - - /* - * Get pointer to currently bound texture object (oldTexObj) - */ - switch (target) { - case GL_TEXTURE_1D: - oldTexObj = texUnit->Current1D; - break; - case GL_TEXTURE_2D: - oldTexObj = texUnit->Current2D; - break; - case GL_TEXTURE_3D: - oldTexObj = texUnit->Current3D; - break; - case GL_TEXTURE_CUBE_MAP_ARB: - if (!ctx->Extensions.ARB_texture_cube_map) { - _mesa_error( ctx, GL_INVALID_ENUM, "glBindTexture(target)" ); - return; - } - oldTexObj = texUnit->CurrentCubeMap; - break; - case GL_TEXTURE_RECTANGLE_NV: - if (!ctx->Extensions.NV_texture_rectangle) { - _mesa_error( ctx, GL_INVALID_ENUM, "glBindTexture(target)" ); - return; - } - oldTexObj = texUnit->CurrentRect; - break; - default: - _mesa_error( ctx, GL_INVALID_ENUM, "glBindTexture(target)" ); - return; - } - - if (oldTexObj->Name == texName) - /* XXX this might be wrong. If the texobj is in use by another - * context and a texobj parameter was changed, this might be our - * only chance to update this context's hardware state. - */ - return; /* rebinding the same texture- no change */ - - /* - * Get pointer to new texture object (newTexObj) - */ - if (texName == 0) { - /* newTexObj = a default texture object */ - switch (target) { - case GL_TEXTURE_1D: - newTexObj = ctx->Shared->Default1D; - break; - case GL_TEXTURE_2D: - newTexObj = ctx->Shared->Default2D; - break; - case GL_TEXTURE_3D: - newTexObj = ctx->Shared->Default3D; - break; - case GL_TEXTURE_CUBE_MAP_ARB: - newTexObj = ctx->Shared->DefaultCubeMap; - break; - case GL_TEXTURE_RECTANGLE_NV: - newTexObj = ctx->Shared->DefaultRect; - break; - default: - ; /* Bad targets are caught above */ - } - } - else { - /* non-default texture object */ - const struct _mesa_HashTable *hash = ctx->Shared->TexObjects; - newTexObj = (struct gl_texture_object *) _mesa_HashLookup(hash, texName); - if (newTexObj) { - /* error checking */ - if (newTexObj->Target != 0 && newTexObj->Target != target) { - /* the named texture object's dimensions don't match the target */ - _mesa_error( ctx, GL_INVALID_OPERATION, - "glBindTexture(wrong dimensionality)" ); - return; - } - if (newTexObj->Target == 0 && target == GL_TEXTURE_RECTANGLE_NV) { - /* have to init wrap and filter state here - kind of klunky */ - newTexObj->WrapS = GL_CLAMP_TO_EDGE; - newTexObj->WrapT = GL_CLAMP_TO_EDGE; - newTexObj->WrapR = GL_CLAMP_TO_EDGE; - newTexObj->MinFilter = GL_LINEAR; - if (ctx->Driver.TexParameter) { - static const GLfloat fparam_wrap[1] = {(GLfloat) GL_CLAMP_TO_EDGE}; - static const GLfloat fparam_filter[1] = {(GLfloat) GL_LINEAR}; - (*ctx->Driver.TexParameter)( ctx, target, newTexObj, GL_TEXTURE_WRAP_S, fparam_wrap ); - (*ctx->Driver.TexParameter)( ctx, target, newTexObj, GL_TEXTURE_WRAP_T, fparam_wrap ); - (*ctx->Driver.TexParameter)( ctx, target, newTexObj, GL_TEXTURE_WRAP_R, fparam_wrap ); - (*ctx->Driver.TexParameter)( ctx, target, newTexObj, GL_TEXTURE_MIN_FILTER, fparam_filter ); - } - } - } - else { - /* if this is a new texture id, allocate a texture object now */ - newTexObj = (*ctx->Driver.NewTextureObject)(ctx, texName, target); - if (!newTexObj) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindTexture"); - return; - } - - /* and insert it into hash table */ - _glthread_LOCK_MUTEX(ctx->Shared->Mutex); - _mesa_HashInsert(ctx->Shared->TexObjects, texName, newTexObj); - _glthread_UNLOCK_MUTEX(ctx->Shared->Mutex); - } - newTexObj->Target = target; - } - - /* XXX all RefCount accesses should be protected by a mutex. */ - newTexObj->RefCount++; - - /* do the actual binding, but first flush outstanding vertices: - */ - FLUSH_VERTICES(ctx, _NEW_TEXTURE); - - switch (target) { - case GL_TEXTURE_1D: - texUnit->Current1D = newTexObj; - break; - case GL_TEXTURE_2D: - texUnit->Current2D = newTexObj; - break; - case GL_TEXTURE_3D: - texUnit->Current3D = newTexObj; - break; - case GL_TEXTURE_CUBE_MAP_ARB: - texUnit->CurrentCubeMap = newTexObj; - break; - case GL_TEXTURE_RECTANGLE_NV: - texUnit->CurrentRect = newTexObj; - break; - default: - _mesa_problem(ctx, "bad target in BindTexture"); - return; - } - - /* Pass BindTexture call to device driver */ - if (ctx->Driver.BindTexture) - (*ctx->Driver.BindTexture)( ctx, target, newTexObj ); - - /* Decrement the reference count on the old texture and check if it's - * time to delete it. - */ - /* XXX all RefCount accesses should be protected by a mutex. */ - oldTexObj->RefCount--; - ASSERT(oldTexObj->RefCount >= 0); - if (oldTexObj->RefCount == 0) { - ASSERT(oldTexObj->Name != 0); - ASSERT(ctx->Driver.DeleteTexture); - (*ctx->Driver.DeleteTexture)( ctx, oldTexObj ); - } -} - - -/** - * Set texture priorities. - * - * \param n number of textures. - * \param texName texture names. - * \param priorities corresponding texture priorities. - * - * \sa glPrioritizeTextures(). - * - * Looks up each texture in the hash, clamps the corresponding priority between - * 0.0 and 1.0, and calls dd_function_table::PrioritizeTexture. - */ -void GLAPIENTRY -_mesa_PrioritizeTextures( GLsizei n, const GLuint *texName, - const GLclampf *priorities ) -{ - GET_CURRENT_CONTEXT(ctx); - GLint i; - ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); - - if (n < 0) { - _mesa_error( ctx, GL_INVALID_VALUE, "glPrioritizeTextures" ); - return; - } - - if (!priorities) - return; - - for (i = 0; i < n; i++) { - if (texName[i] > 0) { - struct gl_texture_object *t = (struct gl_texture_object *) - _mesa_HashLookup(ctx->Shared->TexObjects, texName[i]); - if (t) { - t->Priority = CLAMP( priorities[i], 0.0F, 1.0F ); - if (ctx->Driver.PrioritizeTexture) - ctx->Driver.PrioritizeTexture( ctx, t, t->Priority ); - } - } - } - - ctx->NewState |= _NEW_TEXTURE; -} - -/** - * See if textures are loaded in texture memory. - * - * \param n number of textures to query. - * \param texName array with the texture names. - * \param residences array which will hold the residence status. - * - * \return GL_TRUE if all textures are resident and \p residences is left unchanged, - * - * \sa glAreTexturesResident(). - * - * Looks up each texture in the hash and calls - * dd_function_table::IsTextureResident. - */ -GLboolean GLAPIENTRY -_mesa_AreTexturesResident(GLsizei n, const GLuint *texName, - GLboolean *residences) -{ - GET_CURRENT_CONTEXT(ctx); - GLboolean allResident = GL_TRUE; - GLint i, j; - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - - if (n < 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident(n)"); - return GL_FALSE; - } - - if (!texName || !residences) - return GL_FALSE; - - for (i = 0; i < n; i++) { - struct gl_texture_object *t; - if (texName[i] == 0) { - _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident"); - return GL_FALSE; - } - t = (struct gl_texture_object *) - _mesa_HashLookup(ctx->Shared->TexObjects, texName[i]); - if (!t) { - _mesa_error(ctx, GL_INVALID_VALUE, "glAreTexturesResident"); - return GL_FALSE; - } - if (!ctx->Driver.IsTextureResident || - ctx->Driver.IsTextureResident(ctx, t)) { - /* The texture is resident */ - if (!allResident) - residences[i] = GL_TRUE; - } - else { - /* The texture is not resident */ - if (allResident) { - allResident = GL_FALSE; - for (j = 0; j < i; j++) - residences[j] = GL_TRUE; - } - residences[i] = GL_FALSE; - } - } - - return allResident; -} - -/** - * See if a name corresponds to a texture. - * - * \param texture texture name. - * - * \return GL_TRUE if texture name corresponds to a texture, or GL_FALSE - * otherwise. - * - * \sa glIsTexture(). - * - * Calls _mesa_HashLookup(). - */ -GLboolean GLAPIENTRY -_mesa_IsTexture( GLuint texture ) -{ - struct gl_texture_object *t; - GET_CURRENT_CONTEXT(ctx); - ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE); - - if (!texture) - return GL_FALSE; - - t = (struct gl_texture_object *) - _mesa_HashLookup(ctx->Shared->TexObjects, texture); - - /* IsTexture is true only after object has been bound once. */ - return t && t->Target; -} - -/*@}*/ |