home *** CD-ROM | disk | FTP | other *** search
- /* $Id: attrib.c,v 1.10.2.3 1999/12/12 18:30:47 keithw Exp $ */
-
- /*
- * Mesa 3-D graphics library
- * Version: 3.1
- *
- * Copyright (C) 1999 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 <stdlib.h>
-
- #ifdef PC_HEADER
- #include "all.h"
- #else
- #ifndef XFree86Server
- #include <stdio.h>
- #else
- #include "GL/xf86glx.h"
- #endif
- #include "attrib.h"
- #include "context.h"
- #include "glmisc.h"
- #include "enable.h"
- #include "enums.h"
- #include "macros.h"
- #include "simple_list.h"
- #include "texstate.h"
- #include "types.h"
- #endif
-
-
-
-
- /*
- * Allocate a new attribute state node. These nodes have a
- * "kind" value and a pointer to a struct of state data.
- */
- static struct gl_attrib_node *new_attrib_node( GLbitfield kind )
- {
- struct gl_attrib_node *an = MALLOC_STRUCT(gl_attrib_node);
- if (an) {
- an->kind = kind;
- }
- return an;
- }
-
-
-
- /*
- * Copy texture object state from one texture object to another.
- */
- static void copy_texobj_state( struct gl_texture_object *dest,
- const struct gl_texture_object *src )
- {
- /*
- dest->Name = src->Name;
- dest->Dimensions = src->Dimensions;
- */
- 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->BaseLevel = src->BaseLevel;
- dest->MaxLevel = src->MaxLevel;
- dest->P = src->P;
- dest->M = src->M;
- dest->MinMagThresh = src->MinMagThresh;
- memcpy( dest->Palette, src->Palette,
- sizeof(GLubyte) * MAX_TEXTURE_PALETTE_SIZE * 4 );
- dest->PaletteSize = src->PaletteSize;
- dest->PaletteIntFormat = src->PaletteIntFormat;
- dest->PaletteFormat = src->PaletteFormat;
- dest->Complete = src->Complete;
- dest->SampleFunc = src->SampleFunc;
- }
-
-
-
- void gl_PushAttrib( GLcontext* ctx, GLbitfield mask )
- {
- struct gl_attrib_node *newnode;
- struct gl_attrib_node *head;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPushAttrib");
-
- if (MESA_VERBOSE&VERBOSE_API)
- fprintf(stderr, "glPushAttrib %x\n", mask);
-
- if (ctx->AttribStackDepth>=MAX_ATTRIB_STACK_DEPTH) {
- gl_error( ctx, GL_STACK_OVERFLOW, "glPushAttrib" );
- return;
- }
-
- /* Build linked list of attribute nodes which save all attribute */
- /* groups specified by the mask. */
- head = NULL;
-
- if (mask & GL_ACCUM_BUFFER_BIT) {
- struct gl_accum_attrib *attr;
- attr = MALLOC_STRUCT( gl_accum_attrib );
- MEMCPY( attr, &ctx->Accum, sizeof(struct gl_accum_attrib) );
- newnode = new_attrib_node( GL_ACCUM_BUFFER_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_COLOR_BUFFER_BIT) {
- struct gl_colorbuffer_attrib *attr;
- attr = MALLOC_STRUCT( gl_colorbuffer_attrib );
- MEMCPY( attr, &ctx->Color, sizeof(struct gl_colorbuffer_attrib) );
- newnode = new_attrib_node( GL_COLOR_BUFFER_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_CURRENT_BIT) {
- struct gl_current_attrib *attr;
- attr = MALLOC_STRUCT( gl_current_attrib );
- MEMCPY( attr, &ctx->Current, sizeof(struct gl_current_attrib) );
- newnode = new_attrib_node( GL_CURRENT_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_DEPTH_BUFFER_BIT) {
- struct gl_depthbuffer_attrib *attr;
- attr = MALLOC_STRUCT( gl_depthbuffer_attrib );
- MEMCPY( attr, &ctx->Depth, sizeof(struct gl_depthbuffer_attrib) );
- newnode = new_attrib_node( GL_DEPTH_BUFFER_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_ENABLE_BIT) {
- struct gl_enable_attrib *attr;
- GLuint i;
- attr = MALLOC_STRUCT( gl_enable_attrib );
- /* Copy enable flags from all other attributes into the enable struct. */
- attr->AlphaTest = ctx->Color.AlphaEnabled;
- attr->AutoNormal = ctx->Eval.AutoNormal;
- attr->Blend = ctx->Color.BlendEnabled;
- for (i=0;i<MAX_CLIP_PLANES;i++) {
- attr->ClipPlane[i] = ctx->Transform.ClipEnabled[i];
- }
- attr->ColorMaterial = ctx->Light.ColorMaterialEnabled;
- attr->CullFace = ctx->Polygon.CullFlag;
- attr->DepthTest = ctx->Depth.Test;
- attr->Dither = ctx->Color.DitherFlag;
- attr->Fog = ctx->Fog.Enabled;
- for (i=0;i<MAX_LIGHTS;i++) {
- attr->Light[i] = ctx->Light.Light[i].Enabled;
- }
- attr->Lighting = ctx->Light.Enabled;
- attr->LineSmooth = ctx->Line.SmoothFlag;
- attr->LineStipple = ctx->Line.StippleFlag;
- attr->IndexLogicOp = ctx->Color.IndexLogicOpEnabled;
- attr->ColorLogicOp = ctx->Color.ColorLogicOpEnabled;
- attr->Map1Color4 = ctx->Eval.Map1Color4;
- attr->Map1Index = ctx->Eval.Map1Index;
- attr->Map1Normal = ctx->Eval.Map1Normal;
- attr->Map1TextureCoord1 = ctx->Eval.Map1TextureCoord1;
- attr->Map1TextureCoord2 = ctx->Eval.Map1TextureCoord2;
- attr->Map1TextureCoord3 = ctx->Eval.Map1TextureCoord3;
- attr->Map1TextureCoord4 = ctx->Eval.Map1TextureCoord4;
- attr->Map1Vertex3 = ctx->Eval.Map1Vertex3;
- attr->Map1Vertex4 = ctx->Eval.Map1Vertex4;
- attr->Map2Color4 = ctx->Eval.Map2Color4;
- attr->Map2Index = ctx->Eval.Map2Index;
- attr->Map2Normal = ctx->Eval.Map2Normal;
- attr->Map2TextureCoord1 = ctx->Eval.Map2TextureCoord1;
- attr->Map2TextureCoord2 = ctx->Eval.Map2TextureCoord2;
- attr->Map2TextureCoord3 = ctx->Eval.Map2TextureCoord3;
- attr->Map2TextureCoord4 = ctx->Eval.Map2TextureCoord4;
- attr->Map2Vertex3 = ctx->Eval.Map2Vertex3;
- attr->Map2Vertex4 = ctx->Eval.Map2Vertex4;
- attr->Normalize = ctx->Transform.Normalize;
- attr->PointSmooth = ctx->Point.SmoothFlag;
- attr->PolygonOffsetPoint = ctx->Polygon.OffsetPoint;
- attr->PolygonOffsetLine = ctx->Polygon.OffsetLine;
- attr->PolygonOffsetFill = ctx->Polygon.OffsetFill;
- attr->PolygonSmooth = ctx->Polygon.SmoothFlag;
- attr->PolygonStipple = ctx->Polygon.StippleFlag;
- attr->RescaleNormals = ctx->Transform.RescaleNormals;
- attr->Scissor = ctx->Scissor.Enabled;
- attr->Stencil = ctx->Stencil.Enabled;
- attr->Texture = ctx->Texture.Enabled;
- for (i=0; i<MAX_TEXTURE_UNITS; i++) {
- attr->TexGen[i] = ctx->Texture.Unit[i].TexGenEnabled;
- }
- newnode = new_attrib_node( GL_ENABLE_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_EVAL_BIT) {
- struct gl_eval_attrib *attr;
- attr = MALLOC_STRUCT( gl_eval_attrib );
- MEMCPY( attr, &ctx->Eval, sizeof(struct gl_eval_attrib) );
- newnode = new_attrib_node( GL_EVAL_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_FOG_BIT) {
- struct gl_fog_attrib *attr;
- attr = MALLOC_STRUCT( gl_fog_attrib );
- MEMCPY( attr, &ctx->Fog, sizeof(struct gl_fog_attrib) );
- newnode = new_attrib_node( GL_FOG_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_HINT_BIT) {
- struct gl_hint_attrib *attr;
- attr = MALLOC_STRUCT( gl_hint_attrib );
- MEMCPY( attr, &ctx->Hint, sizeof(struct gl_hint_attrib) );
- newnode = new_attrib_node( GL_HINT_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_LIGHTING_BIT) {
- struct gl_light_attrib *attr;
- attr = MALLOC_STRUCT( gl_light_attrib );
- MEMCPY( attr, &ctx->Light, sizeof(struct gl_light_attrib) );
- newnode = new_attrib_node( GL_LIGHTING_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_LINE_BIT) {
- struct gl_line_attrib *attr;
- attr = MALLOC_STRUCT( gl_line_attrib );
- MEMCPY( attr, &ctx->Line, sizeof(struct gl_line_attrib) );
- newnode = new_attrib_node( GL_LINE_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_LIST_BIT) {
- struct gl_list_attrib *attr;
- attr = MALLOC_STRUCT( gl_list_attrib );
- MEMCPY( attr, &ctx->List, sizeof(struct gl_list_attrib) );
- newnode = new_attrib_node( GL_LIST_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_PIXEL_MODE_BIT) {
- struct gl_pixel_attrib *attr;
- attr = MALLOC_STRUCT( gl_pixel_attrib );
- MEMCPY( attr, &ctx->Pixel, sizeof(struct gl_pixel_attrib) );
- newnode = new_attrib_node( GL_PIXEL_MODE_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_POINT_BIT) {
- struct gl_point_attrib *attr;
- attr = MALLOC_STRUCT( gl_point_attrib );
- MEMCPY( attr, &ctx->Point, sizeof(struct gl_point_attrib) );
- newnode = new_attrib_node( GL_POINT_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_POLYGON_BIT) {
- struct gl_polygon_attrib *attr;
- attr = MALLOC_STRUCT( gl_polygon_attrib );
- MEMCPY( attr, &ctx->Polygon, sizeof(struct gl_polygon_attrib) );
- newnode = new_attrib_node( GL_POLYGON_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_POLYGON_STIPPLE_BIT) {
- GLuint *stipple;
- stipple = (GLuint *) MALLOC( 32*sizeof(GLuint) );
- MEMCPY( stipple, ctx->PolygonStipple, 32*sizeof(GLuint) );
- newnode = new_attrib_node( GL_POLYGON_STIPPLE_BIT );
- newnode->data = stipple;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_SCISSOR_BIT) {
- struct gl_scissor_attrib *attr;
- attr = MALLOC_STRUCT( gl_scissor_attrib );
- MEMCPY( attr, &ctx->Scissor, sizeof(struct gl_scissor_attrib) );
- newnode = new_attrib_node( GL_SCISSOR_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_STENCIL_BUFFER_BIT) {
- struct gl_stencil_attrib *attr;
- attr = MALLOC_STRUCT( gl_stencil_attrib );
- MEMCPY( attr, &ctx->Stencil, sizeof(struct gl_stencil_attrib) );
- newnode = new_attrib_node( GL_STENCIL_BUFFER_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_TEXTURE_BIT) {
- struct gl_texture_attrib *attr;
- GLuint u;
- /* Take care of texture object reference counters */
- for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
- ctx->Texture.Unit[u].CurrentD[1]->RefCount++;
- ctx->Texture.Unit[u].CurrentD[2]->RefCount++;
- ctx->Texture.Unit[u].CurrentD[3]->RefCount++;
- }
- attr = MALLOC_STRUCT( gl_texture_attrib );
- MEMCPY( attr, &ctx->Texture, sizeof(struct gl_texture_attrib) );
- /* copy state of the currently bound texture objects */
- for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
- copy_texobj_state(&attr->Unit[u].Saved1D, attr->Unit[u].CurrentD[1]);
- copy_texobj_state(&attr->Unit[u].Saved2D, attr->Unit[u].CurrentD[2]);
- copy_texobj_state(&attr->Unit[u].Saved3D, attr->Unit[u].CurrentD[3]);
- }
- newnode = new_attrib_node( GL_TEXTURE_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_TRANSFORM_BIT) {
- struct gl_transform_attrib *attr;
- attr = MALLOC_STRUCT( gl_transform_attrib );
- MEMCPY( attr, &ctx->Transform, sizeof(struct gl_transform_attrib) );
- newnode = new_attrib_node( GL_TRANSFORM_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- if (mask & GL_VIEWPORT_BIT) {
- struct gl_viewport_attrib *attr;
- attr = MALLOC_STRUCT( gl_viewport_attrib );
- MEMCPY( attr, &ctx->Viewport, sizeof(struct gl_viewport_attrib) );
- newnode = new_attrib_node( GL_VIEWPORT_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- ctx->AttribStack[ctx->AttribStackDepth] = head;
- ctx->AttribStackDepth++;
- }
-
-
-
- /*
- * This function is kind of long just because we have to call a lot
- * of device driver functions to update device driver state.
- */
- void gl_PopAttrib( GLcontext* ctx )
- {
- struct gl_attrib_node *attr, *next;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPopAttrib");
-
-
- if (ctx->AttribStackDepth==0) {
- gl_error( ctx, GL_STACK_UNDERFLOW, "glPopAttrib" );
- return;
- }
-
- ctx->AttribStackDepth--;
- attr = ctx->AttribStack[ctx->AttribStackDepth];
-
- while (attr) {
-
- if (MESA_VERBOSE&VERBOSE_API)
- fprintf(stderr, "glPopAttrib %s\n", gl_lookup_enum_by_nr(attr->kind));
-
- switch (attr->kind) {
- case GL_ACCUM_BUFFER_BIT:
- MEMCPY( &ctx->Accum, attr->data, sizeof(struct gl_accum_attrib) );
- break;
- case GL_COLOR_BUFFER_BIT:
- {
- GLenum oldDrawBuffer = ctx->Color.DrawBuffer;
- GLenum oldAlphaFunc = ctx->Color.AlphaFunc;
- GLubyte oldAlphaRef = ctx->Color.AlphaRef;
- GLenum oldBlendSrc = ctx->Color.BlendSrcRGB;
- GLenum oldBlendDst = ctx->Color.BlendDstRGB;
- GLenum oldLogicOp = ctx->Color.LogicOp;
- MEMCPY( &ctx->Color, attr->data,
- sizeof(struct gl_colorbuffer_attrib) );
- if (ctx->Color.DrawBuffer != oldDrawBuffer) {
- gl_DrawBuffer(ctx, ctx->Color.DrawBuffer);
- }
- if ((ctx->Color.AlphaFunc != oldAlphaFunc ||
- ctx->Color.AlphaRef != oldAlphaRef) &&
- ctx->Driver.AlphaFunc)
- (*ctx->Driver.AlphaFunc)( ctx, ctx->Color.AlphaFunc,
- ctx->Color.AlphaRef / 255.0F);
- if ((ctx->Color.BlendSrcRGB != oldBlendSrc ||
- ctx->Color.BlendSrcRGB != oldBlendDst) &&
- ctx->Driver.BlendFunc)
- (*ctx->Driver.BlendFunc)( ctx, ctx->Color.BlendSrcRGB,
- ctx->Color.BlendDstRGB);
- if (ctx->Color.LogicOp != oldLogicOp &&
- ctx->Driver.LogicOpcode)
- ctx->Driver.LogicOpcode( ctx, ctx->Color.LogicOp );
- }
- break;
- case GL_CURRENT_BIT:
- MEMCPY( &ctx->Current, attr->data,
- sizeof(struct gl_current_attrib) );
- break;
- case GL_DEPTH_BUFFER_BIT:
- {
- GLenum oldDepthFunc = ctx->Depth.Func;
- GLboolean oldDepthMask = ctx->Depth.Mask;
- GLfloat oldDepthClear = ctx->Depth.Clear;
- MEMCPY( &ctx->Depth, attr->data,
- sizeof(struct gl_depthbuffer_attrib) );
- if (ctx->Depth.Func != oldDepthFunc && ctx->Driver.DepthFunc)
- (*ctx->Driver.DepthFunc)( ctx, ctx->Depth.Func );
- if (ctx->Depth.Mask != oldDepthMask && ctx->Driver.DepthMask)
- (*ctx->Driver.DepthMask)( ctx, ctx->Depth.Mask );
- if (ctx->Depth.Clear != oldDepthClear && ctx->Driver.ClearDepth)
- (*ctx->Driver.ClearDepth)( ctx, ctx->Depth.Clear );
- }
- break;
- case GL_ENABLE_BIT:
- {
- const struct gl_enable_attrib *enable;
- enable = (const struct gl_enable_attrib *) attr->data;
-
- #define TEST_AND_UPDATE(VALUE, NEWVALUE, ENUM) \
- if ((VALUE) != (NEWVALUE)) { \
- gl_set_enable( ctx, ENUM, (NEWVALUE) ); \
- }
-
- TEST_AND_UPDATE(ctx->Color.AlphaEnabled, enable->AlphaTest, GL_ALPHA_TEST);
- TEST_AND_UPDATE(ctx->Transform.Normalize, enable->AutoNormal, GL_NORMALIZE);
- TEST_AND_UPDATE(ctx->Color.BlendEnabled, enable->Blend, GL_BLEND);
- {
- GLuint i;
- for (i=0;i<MAX_CLIP_PLANES;i++) {
- if (ctx->Transform.ClipEnabled[i] != enable->ClipPlane[i])
- gl_set_enable( ctx, (GLenum) (GL_CLIP_PLANE0 + i), enable->ClipPlane[i] );
- }
- }
- TEST_AND_UPDATE(ctx->Light.ColorMaterialEnabled, enable->ColorMaterial, GL_COLOR_MATERIAL);
- TEST_AND_UPDATE(ctx->Polygon.CullFlag, enable->CullFace, GL_CULL_FACE);
- TEST_AND_UPDATE(ctx->Depth.Test, enable->DepthTest, GL_DEPTH_TEST);
- TEST_AND_UPDATE(ctx->Color.DitherFlag, enable->Dither, GL_DITHER);
- TEST_AND_UPDATE(ctx->Fog.Enabled, enable->Fog, GL_FOG);
- TEST_AND_UPDATE(ctx->Light.Enabled, enable->Lighting, GL_LIGHTING);
- TEST_AND_UPDATE(ctx->Line.SmoothFlag, enable->LineSmooth, GL_LINE_SMOOTH);
- TEST_AND_UPDATE(ctx->Line.StippleFlag, enable->LineStipple, GL_LINE_STIPPLE);
- TEST_AND_UPDATE(ctx->Color.IndexLogicOpEnabled, enable->IndexLogicOp, GL_INDEX_LOGIC_OP);
- TEST_AND_UPDATE(ctx->Color.ColorLogicOpEnabled, enable->ColorLogicOp, GL_COLOR_LOGIC_OP);
- TEST_AND_UPDATE(ctx->Eval.Map1Color4, enable->Map1Color4, GL_MAP1_COLOR_4);
- TEST_AND_UPDATE(ctx->Eval.Map1Index, enable->Map1Index, GL_MAP1_INDEX);
- TEST_AND_UPDATE(ctx->Eval.Map1Normal, enable->Map1Normal, GL_MAP1_NORMAL);
- TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord1, enable->Map1TextureCoord1, GL_MAP1_TEXTURE_COORD_1);
- TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord2, enable->Map1TextureCoord2, GL_MAP1_TEXTURE_COORD_2);
- TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord3, enable->Map1TextureCoord3, GL_MAP1_TEXTURE_COORD_3);
- TEST_AND_UPDATE(ctx->Eval.Map1TextureCoord4, enable->Map1TextureCoord4, GL_MAP1_TEXTURE_COORD_4);
- TEST_AND_UPDATE(ctx->Eval.Map1Vertex3, enable->Map1Vertex3, GL_MAP1_VERTEX_3);
- TEST_AND_UPDATE(ctx->Eval.Map1Vertex4, enable->Map1Vertex4, GL_MAP1_VERTEX_4);
- TEST_AND_UPDATE(ctx->Eval.Map2Color4, enable->Map2Color4, GL_MAP2_COLOR_4);
- TEST_AND_UPDATE(ctx->Eval.Map2Index, enable->Map2Index, GL_MAP2_INDEX);
- TEST_AND_UPDATE(ctx->Eval.Map2Normal, enable->Map2Normal, GL_MAP2_NORMAL);
- TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord1, enable->Map2TextureCoord1, GL_MAP2_TEXTURE_COORD_1);
- TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord2, enable->Map2TextureCoord2, GL_MAP2_TEXTURE_COORD_2);
- TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord3, enable->Map2TextureCoord3, GL_MAP2_TEXTURE_COORD_3);
- TEST_AND_UPDATE(ctx->Eval.Map2TextureCoord4, enable->Map2TextureCoord4, GL_MAP2_TEXTURE_COORD_4);
- TEST_AND_UPDATE(ctx->Eval.Map2Vertex3, enable->Map2Vertex3, GL_MAP2_VERTEX_3);
- TEST_AND_UPDATE(ctx->Eval.Map2Vertex4, enable->Map2Vertex4, GL_MAP2_VERTEX_4);
- TEST_AND_UPDATE(ctx->Transform.Normalize, enable->Normalize, GL_NORMALIZE);
- TEST_AND_UPDATE(ctx->Transform.RescaleNormals, enable->RescaleNormals, GL_RESCALE_NORMAL_EXT);
- TEST_AND_UPDATE(ctx->Point.SmoothFlag, enable->PointSmooth, GL_POINT_SMOOTH);
- TEST_AND_UPDATE(ctx->Polygon.OffsetPoint, enable->PolygonOffsetPoint, GL_POLYGON_OFFSET_POINT);
- TEST_AND_UPDATE(ctx->Polygon.OffsetLine, enable->PolygonOffsetLine, GL_POLYGON_OFFSET_LINE);
- TEST_AND_UPDATE(ctx->Polygon.OffsetFill, enable->PolygonOffsetFill, GL_POLYGON_OFFSET_FILL);
- TEST_AND_UPDATE(ctx->Polygon.SmoothFlag, enable->PolygonSmooth, GL_POLYGON_SMOOTH);
- TEST_AND_UPDATE(ctx->Polygon.StippleFlag, enable->PolygonStipple, GL_POLYGON_STIPPLE);
- TEST_AND_UPDATE(ctx->Scissor.Enabled, enable->Scissor, GL_SCISSOR_TEST);
- TEST_AND_UPDATE(ctx->Stencil.Enabled, enable->Stencil, GL_STENCIL_TEST);
- if (ctx->Texture.Enabled != enable->Texture) {
- ctx->Texture.Enabled = enable->Texture;
- if (ctx->Driver.Enable) {
- if (ctx->Driver.ActiveTexture)
- (*ctx->Driver.ActiveTexture)( ctx, 0 );
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D, (GLboolean) (enable->Texture & TEXTURE0_1D) );
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D, (GLboolean) (enable->Texture & TEXTURE0_2D) );
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D, (GLboolean) (enable->Texture & TEXTURE0_3D) );
- if (ctx->Driver.ActiveTexture)
- (*ctx->Driver.ActiveTexture)( ctx, 1 );
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_1D, (GLboolean) (enable->Texture & TEXTURE1_1D) );
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_2D, (GLboolean) (enable->Texture & TEXTURE1_2D) );
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_3D, (GLboolean) (enable->Texture & TEXTURE1_3D) );
- if (ctx->Driver.ActiveTexture)
- (*ctx->Driver.ActiveTexture)( ctx, ctx->Texture.CurrentUnit );
- }
- }
- #undef TEST_AND_UPDATE
- {
- GLuint i;
- for (i=0; i<MAX_TEXTURE_UNITS; i++) {
- if (ctx->Texture.Unit[i].TexGenEnabled != enable->TexGen[i]) {
- ctx->Texture.Unit[i].TexGenEnabled = enable->TexGen[i];
-
- /* ctx->Enabled recalculated in state change
- processing */
-
- if (ctx->Driver.Enable) {
- if (ctx->Driver.ActiveTexture)
- (*ctx->Driver.ActiveTexture)( ctx, i );
- if (enable->TexGen[i] & S_BIT)
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_TRUE);
- else
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_S, GL_FALSE);
- if (enable->TexGen[i] & T_BIT)
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_TRUE);
- else
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_T, GL_FALSE);
- if (enable->TexGen[i] & R_BIT)
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_TRUE);
- else
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_R, GL_FALSE);
- if (enable->TexGen[i] & Q_BIT)
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_TRUE);
- else
- (*ctx->Driver.Enable)( ctx, GL_TEXTURE_GEN_Q, GL_FALSE);
- }
- }
- }
- if (ctx->Driver.ActiveTexture)
- (*ctx->Driver.ActiveTexture)( ctx, ctx->Texture.CurrentUnit );
- }
- }
- break;
- case GL_EVAL_BIT:
- MEMCPY( &ctx->Eval, attr->data, sizeof(struct gl_eval_attrib) );
- break;
- case GL_FOG_BIT:
- {
- GLboolean anyChange = (GLboolean) (memcmp( &ctx->Fog, attr->data, sizeof(struct gl_fog_attrib) ) != 0);
- MEMCPY( &ctx->Fog, attr->data, sizeof(struct gl_fog_attrib) );
- if (anyChange && ctx->Driver.Fogfv) {
- const GLfloat mode = (GLfloat) ctx->Fog.Mode;
- const GLfloat density = ctx->Fog.Density;
- const GLfloat start = ctx->Fog.Start;
- const GLfloat end = ctx->Fog.End;
- const GLfloat index = ctx->Fog.Index;
- (*ctx->Driver.Fogfv)( ctx, GL_FOG_MODE, &mode);
- (*ctx->Driver.Fogfv)( ctx, GL_FOG_DENSITY, &density );
- (*ctx->Driver.Fogfv)( ctx, GL_FOG_START, &start );
- (*ctx->Driver.Fogfv)( ctx, GL_FOG_END, &end );
- (*ctx->Driver.Fogfv)( ctx, GL_FOG_INDEX, &index );
- (*ctx->Driver.Fogfv)( ctx, GL_FOG_COLOR, ctx->Fog.Color );
- }
- ctx->Enabled &= ~ENABLE_FOG;
- if (ctx->Fog.Enabled) ctx->Enabled |= ENABLE_FOG;
- }
- break;
- case GL_HINT_BIT:
- MEMCPY( &ctx->Hint, attr->data, sizeof(struct gl_hint_attrib) );
- if (ctx->Driver.Hint) {
- (*ctx->Driver.Hint)( ctx, GL_PERSPECTIVE_CORRECTION_HINT,
- ctx->Hint.PerspectiveCorrection );
- (*ctx->Driver.Hint)( ctx, GL_POINT_SMOOTH_HINT,
- ctx->Hint.PointSmooth);
- (*ctx->Driver.Hint)( ctx, GL_LINE_SMOOTH_HINT,
- ctx->Hint.LineSmooth );
- (*ctx->Driver.Hint)( ctx, GL_POLYGON_SMOOTH_HINT,
- ctx->Hint.PolygonSmooth );
- (*ctx->Driver.Hint)( ctx, GL_FOG_HINT, ctx->Hint.Fog );
- }
- break;
- case GL_LIGHTING_BIT:
- MEMCPY( &ctx->Light, attr->data, sizeof(struct gl_light_attrib) );
- if (ctx->Driver.Enable) {
- GLuint i;
- for (i = 0; i < MAX_LIGHTS; i++) {
- GLenum light = (GLenum) (GL_LIGHT0 + i);
- (*ctx->Driver.Enable)( ctx, light, ctx->Light.Light[i].Enabled );
- }
- (*ctx->Driver.Enable)( ctx, GL_LIGHTING, ctx->Light.Enabled );
- }
- if (ctx->Light.ShadeModel == GL_FLAT)
- ctx->TriangleCaps |= DD_FLATSHADE;
- else
- ctx->TriangleCaps &= ~DD_FLATSHADE;
- if (ctx->Driver.ShadeModel)
- (*ctx->Driver.ShadeModel)(ctx, ctx->Light.ShadeModel);
- ctx->Enabled &= ~ENABLE_LIGHT;
- if (ctx->Light.Enabled && !is_empty_list(&ctx->Light.EnabledList))
- ctx->Enabled |= ENABLE_LIGHT;
- break;
- case GL_LINE_BIT:
- MEMCPY( &ctx->Line, attr->data, sizeof(struct gl_line_attrib) );
- if (ctx->Driver.Enable) {
- (*ctx->Driver.Enable)( ctx, GL_LINE_SMOOTH, ctx->Line.SmoothFlag );
- (*ctx->Driver.Enable)( ctx, GL_LINE_STIPPLE, ctx->Line.StippleFlag );
- }
- break;
- case GL_LIST_BIT:
- MEMCPY( &ctx->List, attr->data, sizeof(struct gl_list_attrib) );
- break;
- case GL_PIXEL_MODE_BIT:
- MEMCPY( &ctx->Pixel, attr->data, sizeof(struct gl_pixel_attrib) );
- break;
- case GL_POINT_BIT:
- MEMCPY( &ctx->Point, attr->data, sizeof(struct gl_point_attrib) );
- if (ctx->Driver.Enable)
- (*ctx->Driver.Enable)( ctx, GL_POINT_SMOOTH, ctx->Point.SmoothFlag );
- break;
- case GL_POLYGON_BIT:
- {
- GLenum oldFrontMode = ctx->Polygon.FrontMode;
- GLenum oldBackMode = ctx->Polygon.BackMode;
- MEMCPY( &ctx->Polygon, attr->data,
- sizeof(struct gl_polygon_attrib) );
- if ((ctx->Polygon.FrontMode != oldFrontMode ||
- ctx->Polygon.BackMode != oldBackMode) &&
- ctx->Driver.PolygonMode) {
- (*ctx->Driver.PolygonMode)( ctx, GL_FRONT, ctx->Polygon.FrontMode);
- (*ctx->Driver.PolygonMode)( ctx, GL_BACK, ctx->Polygon.BackMode);
- }
- if (ctx->Driver.CullFace)
- ctx->Driver.CullFace( ctx, ctx->Polygon.CullFaceMode );
-
- if (ctx->Driver.FrontFace)
- ctx->Driver.FrontFace( ctx, ctx->Polygon.FrontFace );
-
- if (ctx->Driver.Enable)
- (*ctx->Driver.Enable)( ctx, GL_POLYGON_SMOOTH, ctx->Polygon.SmoothFlag );
- }
- break;
- case GL_POLYGON_STIPPLE_BIT:
- MEMCPY( ctx->PolygonStipple, attr->data, 32*sizeof(GLuint) );
- break;
- case GL_SCISSOR_BIT:
- MEMCPY( &ctx->Scissor, attr->data,
- sizeof(struct gl_scissor_attrib) );
- if (ctx->Driver.Enable)
- (*ctx->Driver.Enable)( ctx, GL_SCISSOR_TEST, ctx->Scissor.Enabled );
- if (ctx->Driver.Scissor)
- ctx->Driver.Scissor( ctx, ctx->Scissor.X, ctx->Scissor.Y,
- ctx->Scissor.Width, ctx->Scissor.Height );
- break;
- case GL_STENCIL_BUFFER_BIT:
- MEMCPY( &ctx->Stencil, attr->data,
- sizeof(struct gl_stencil_attrib) );
- if (ctx->Driver.StencilFunc)
- (*ctx->Driver.StencilFunc)( ctx, ctx->Stencil.Function,
- ctx->Stencil.Ref, ctx->Stencil.ValueMask);
- if (ctx->Driver.StencilMask)
- (*ctx->Driver.StencilMask)( ctx, ctx->Stencil.WriteMask );
- if (ctx->Driver.StencilOp)
- (*ctx->Driver.StencilOp)( ctx, ctx->Stencil.FailFunc,
- ctx->Stencil.ZFailFunc, ctx->Stencil.ZPassFunc);
- if (ctx->Driver.ClearStencil)
- (*ctx->Driver.ClearStencil)( ctx, ctx->Stencil.Clear );
- if (ctx->Driver.Enable)
- (*ctx->Driver.Enable)( ctx, GL_STENCIL_TEST, ctx->Stencil.Enabled );
- ctx->TriangleCaps &= ~DD_STENCIL;
- if (ctx->Stencil.Enabled)
- ctx->TriangleCaps |= DD_STENCIL;
-
- break;
- case GL_TRANSFORM_BIT:
- MEMCPY( &ctx->Transform, attr->data,
- sizeof(struct gl_transform_attrib) );
- if (ctx->Driver.Enable) {
- (*ctx->Driver.Enable)( ctx, GL_NORMALIZE, ctx->Transform.Normalize );
- (*ctx->Driver.Enable)( ctx, GL_RESCALE_NORMAL_EXT, ctx->Transform.RescaleNormals );
- }
- ctx->Enabled &= ~(ENABLE_NORMALIZE|ENABLE_RESCALE);
- if (ctx->Transform.Normalize) ctx->Enabled |= ENABLE_NORMALIZE;
- if (ctx->Transform.RescaleNormals) ctx->Enabled |= ENABLE_RESCALE;
- break;
- case GL_TEXTURE_BIT:
- /* Take care of texture object reference counters */
- {
- GLuint u;
- for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
- ctx->Texture.Unit[u].CurrentD[1]->RefCount--;
- ctx->Texture.Unit[u].CurrentD[2]->RefCount--;
- ctx->Texture.Unit[u].CurrentD[3]->RefCount--;
- }
- MEMCPY( &ctx->Texture, attr->data,
- sizeof(struct gl_texture_attrib) );
- /* restore state of the currently bound texture objects */
- for (u = 0; u < ctx->Const.MaxTextureUnits; u++) {
- copy_texobj_state( ctx->Texture.Unit[u].CurrentD[1],
- &(ctx->Texture.Unit[u].Saved1D) );
- copy_texobj_state( ctx->Texture.Unit[u].CurrentD[2],
- &(ctx->Texture.Unit[u].Saved2D) );
- copy_texobj_state( ctx->Texture.Unit[u].CurrentD[3],
- &(ctx->Texture.Unit[u].Saved3D) );
- gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentD[1] );
- gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentD[2] );
- gl_put_texobj_on_dirty_list( ctx, ctx->Texture.Unit[u].CurrentD[3] );
-
- }
- }
- break;
- case GL_VIEWPORT_BIT:
- {
- struct gl_viewport_attrib *v =
- (struct gl_viewport_attrib *)attr->data;
-
- gl_Viewport( ctx, v->X, v->Y, v->Width, v->Height );
- gl_DepthRange( ctx, v->Near, v->Far );
- break;
- }
- default:
- gl_problem( ctx, "Bad attrib flag in PopAttrib");
- break;
- }
-
- next = attr->next;
- FREE( attr->data );
- FREE( attr );
- attr = next;
- }
-
- ctx->NewState = NEW_ALL;
- }
-
-
- #define GL_CLIENT_PACK_BIT (1<<20)
- #define GL_CLIENT_UNPACK_BIT (1<<21)
-
-
- void gl_PushClientAttrib( GLcontext *ctx, GLbitfield mask )
- {
- struct gl_attrib_node *newnode;
- struct gl_attrib_node *head;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPushClientAttrib");
-
- if (ctx->ClientAttribStackDepth>=MAX_CLIENT_ATTRIB_STACK_DEPTH) {
- gl_error( ctx, GL_STACK_OVERFLOW, "glPushClientAttrib" );
- return;
- }
-
- /* Build linked list of attribute nodes which save all attribute */
- /* groups specified by the mask. */
- head = NULL;
-
- if (mask & GL_CLIENT_PIXEL_STORE_BIT) {
- struct gl_pixelstore_attrib *attr;
- /* packing attribs */
- attr = MALLOC_STRUCT( gl_pixelstore_attrib );
- MEMCPY( attr, &ctx->Pack, sizeof(struct gl_pixelstore_attrib) );
- newnode = new_attrib_node( GL_CLIENT_PACK_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- /* unpacking attribs */
- attr = MALLOC_STRUCT( gl_pixelstore_attrib );
- MEMCPY( attr, &ctx->Unpack, sizeof(struct gl_pixelstore_attrib) );
- newnode = new_attrib_node( GL_CLIENT_UNPACK_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
- if (mask & GL_CLIENT_VERTEX_ARRAY_BIT) {
- struct gl_array_attrib *attr;
- attr = MALLOC_STRUCT( gl_array_attrib );
- MEMCPY( attr, &ctx->Array, sizeof(struct gl_array_attrib) );
- newnode = new_attrib_node( GL_CLIENT_VERTEX_ARRAY_BIT );
- newnode->data = attr;
- newnode->next = head;
- head = newnode;
- }
-
- ctx->ClientAttribStack[ctx->ClientAttribStackDepth] = head;
- ctx->ClientAttribStackDepth++;
- }
-
-
-
-
- void gl_PopClientAttrib( GLcontext *ctx )
- {
- struct gl_attrib_node *attr, *next;
-
- ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glPopClientAttrib");
-
- if (ctx->ClientAttribStackDepth==0) {
- gl_error( ctx, GL_STACK_UNDERFLOW, "glPopClientAttrib" );
- return;
- }
-
- ctx->ClientAttribStackDepth--;
- attr = ctx->ClientAttribStack[ctx->ClientAttribStackDepth];
-
- while (attr) {
- switch (attr->kind) {
- case GL_CLIENT_PACK_BIT:
- MEMCPY( &ctx->Pack, attr->data,
- sizeof(struct gl_pixelstore_attrib) );
- break;
- case GL_CLIENT_UNPACK_BIT:
- MEMCPY( &ctx->Unpack, attr->data,
- sizeof(struct gl_pixelstore_attrib) );
- break;
- case GL_CLIENT_VERTEX_ARRAY_BIT:
- MEMCPY( &ctx->Array, attr->data,
- sizeof(struct gl_array_attrib) );
- break;
- default:
- gl_problem( ctx, "Bad attrib flag in PopClientAttrib");
- break;
- }
-
- next = attr->next;
- FREE( attr->data );
- FREE( attr );
- attr = next;
- }
-
- ctx->NewState = NEW_ALL;
- }
-
-