/*
* Mesa 3-D graphics library
- * Version: 7.1
+ * Version: 7.3
*
* Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
*
* \file state.c
* State management.
*
- * This file manages recalculation of derived values in GLcontext.
+ * This file manages recalculation of derived values in struct gl_context.
*/
#include "glheader.h"
#include "mtypes.h"
+#include "arrayobj.h"
#include "context.h"
#include "debug.h"
#include "macros.h"
#include "framebuffer.h"
#include "light.h"
#include "matrix.h"
-#if FEATURE_pixel_transfer
#include "pixel.h"
-#endif
-#include "shader/program.h"
+#include "program/program.h"
+#include "program/prog_parameter.h"
+#include "shaderobj.h"
#include "state.h"
#include "stencil.h"
#include "texenvprogram.h"
#include "texobj.h"
#include "texstate.h"
+#include "varray.h"
static void
-update_separate_specular(GLcontext *ctx)
+update_separate_specular(struct gl_context *ctx)
{
- if (NEED_SECONDARY_COLOR(ctx))
+ if (_mesa_need_secondary_color(ctx))
ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
else
ctx->_TriangleCaps &= ~DD_SEPARATE_SPECULAR;
/**
- * Update state dependent on vertex arrays.
+ * Update the following fields:
+ * ctx->VertexProgram._Enabled
+ * ctx->FragmentProgram._Enabled
+ * ctx->ATIFragmentShader._Enabled
+ * This needs to be done before texture state validation.
*/
static void
-update_arrays( GLcontext *ctx )
+update_program_enables(struct gl_context *ctx)
{
- GLuint i, min;
-
- /* find min of _MaxElement values for all enabled arrays */
-
- /* 0 */
- if (ctx->VertexProgram._Current
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled) {
- min = ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POS]._MaxElement;
- }
- else if (ctx->Array.ArrayObj->Vertex.Enabled) {
- min = ctx->Array.ArrayObj->Vertex._MaxElement;
- }
- else {
- /* can't draw anything without vertex positions! */
- min = 0;
- }
-
- /* 1 */
- if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_WEIGHT]._MaxElement);
- }
- /* no conventional vertex weight array */
-
- /* 2 */
- if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_NORMAL]._MaxElement);
- }
- else if (ctx->Array.ArrayObj->Normal.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->Normal._MaxElement);
- }
-
- /* 3 */
- if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR0]._MaxElement);
- }
- else if (ctx->Array.ArrayObj->Color.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->Color._MaxElement);
- }
-
- /* 4 */
- if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR1]._MaxElement);
- }
- else if (ctx->Array.ArrayObj->SecondaryColor.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->SecondaryColor._MaxElement);
- }
-
- /* 5 */
- if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_FOG]._MaxElement);
- }
- else if (ctx->Array.ArrayObj->FogCoord.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->FogCoord._MaxElement);
- }
-
- /* 6 */
- if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX]._MaxElement);
- }
- else if (ctx->Array.ArrayObj->Index.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->Index._MaxElement);
- }
-
-
- /* 7 */
- if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG]._MaxElement);
- }
-
- /* 8..15 */
- for (i = VERT_ATTRIB_TEX0; i <= VERT_ATTRIB_TEX7; i++) {
- if (ctx->VertexProgram._Enabled
- && ctx->Array.ArrayObj->VertexAttrib[i].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[i]._MaxElement);
- }
- else if (i - VERT_ATTRIB_TEX0 < ctx->Const.MaxTextureCoordUnits
- && ctx->Array.ArrayObj->TexCoord[i - VERT_ATTRIB_TEX0].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->TexCoord[i - VERT_ATTRIB_TEX0]._MaxElement);
- }
- }
-
- /* 16..31 */
- if (ctx->VertexProgram._Current) {
- for (i = VERT_ATTRIB_GENERIC0; i < VERT_ATTRIB_MAX; i++) {
- if (ctx->Array.ArrayObj->VertexAttrib[i].Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->VertexAttrib[i]._MaxElement);
- }
- }
- }
-
- if (ctx->Array.ArrayObj->EdgeFlag.Enabled) {
- min = MIN2(min, ctx->Array.ArrayObj->EdgeFlag._MaxElement);
- }
-
- /* _MaxElement is one past the last legal array element */
- ctx->Array._MaxElement = min;
-}
-
-
-static void
-update_program(GLcontext *ctx)
-{
- const struct gl_shader_program *shProg = ctx->Shader.CurrentProgram;
- const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current;
- const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current;
-
- /* These _Enabled flags indicate if the program is enabled AND valid. */
+ /* These _Enabled flags indicate if the user-defined ARB/NV vertex/fragment
+ * program is enabled AND valid. Similarly for ATI fragment shaders.
+ * GLSL shaders not relevant here.
+ */
ctx->VertexProgram._Enabled = ctx->VertexProgram.Enabled
&& ctx->VertexProgram.Current->Base.Instructions;
ctx->FragmentProgram._Enabled = ctx->FragmentProgram.Enabled
&& ctx->FragmentProgram.Current->Base.Instructions;
ctx->ATIFragmentShader._Enabled = ctx->ATIFragmentShader.Enabled
&& ctx->ATIFragmentShader.Current->Instructions[0];
+}
+
+
+/**
+ * Update the ctx->Vertex/Geometry/FragmentProgram._Current pointers to point
+ * to the current/active programs. Then call ctx->Driver.BindProgram() to
+ * tell the driver which programs to use.
+ *
+ * Programs may come from 3 sources: GLSL shaders, ARB/NV_vertex/fragment
+ * programs or programs derived from fixed-function state.
+ *
+ * This function needs to be called after texture state validation in case
+ * we're generating a fragment program from fixed-function texture state.
+ *
+ * \return bitfield which will indicate _NEW_PROGRAM state if a new vertex
+ * or fragment program is being used.
+ */
+static GLbitfield
+update_program(struct gl_context *ctx)
+{
+ const struct gl_shader_program *vsProg = ctx->Shader.CurrentVertexProgram;
+ const struct gl_shader_program *gsProg = ctx->Shader.CurrentGeometryProgram;
+ struct gl_shader_program *fsProg = ctx->Shader.CurrentFragmentProgram;
+ const struct gl_vertex_program *prevVP = ctx->VertexProgram._Current;
+ const struct gl_fragment_program *prevFP = ctx->FragmentProgram._Current;
+ const struct gl_geometry_program *prevGP = ctx->GeometryProgram._Current;
+ GLbitfield new_state = 0x0;
/*
* Set the ctx->VertexProgram._Current and ctx->FragmentProgram._Current
- * pointers to the programs that should be enabled/used. These will only
- * be NULL if we need to use the fixed-function code.
+ * pointers to the programs that should be used for rendering. If either
+ * is NULL, use fixed-function code paths.
*
* These programs may come from several sources. The priority is as
* follows:
* come up, or matter.
*/
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
+ if (fsProg && fsProg->LinkStatus
+ && fsProg->_LinkedShaders[MESA_SHADER_FRAGMENT]) {
+ /* Use GLSL fragment shader */
+ _mesa_reference_shader_program(ctx,
+ &ctx->Shader._CurrentFragmentProgram,
+ fsProg);
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
+ (struct gl_fragment_program *)
+ fsProg->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program);
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,
+ NULL);
+ }
+ else if (ctx->FragmentProgram._Enabled) {
+ /* Use user-defined fragment program */
+ _mesa_reference_shader_program(ctx,
+ &ctx->Shader._CurrentFragmentProgram,
+ NULL);
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
+ ctx->FragmentProgram.Current);
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,
+ NULL);
+ }
+ else if (ctx->FragmentProgram._MaintainTexEnvProgram) {
+ /* Use fragment program generated from fixed-function state */
+ struct gl_shader_program *f = _mesa_get_fixed_func_fragment_program(ctx);
- if (shProg && shProg->LinkStatus) {
- /* Use shader programs */
- /* XXX this isn't quite right, since we may have either a vertex
- * _or_ fragment shader (not always both).
- */
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
- shProg->VertexProgram);
+ _mesa_reference_shader_program(ctx,
+ &ctx->Shader._CurrentFragmentProgram,
+ f);
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
- shProg->FragmentProgram);
+ (struct gl_fragment_program *)
+ f->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program);
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,
+ (struct gl_fragment_program *)
+ f->_LinkedShaders[MESA_SHADER_FRAGMENT]->Program);
}
else {
- if (ctx->FragmentProgram._Enabled) {
- /* use user-defined vertex program */
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
- ctx->FragmentProgram.Current);
- }
- else if (ctx->FragmentProgram._MaintainTexEnvProgram) {
- /* Use fragment program generated from fixed-function state.
- */
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
- _mesa_get_fixed_func_fragment_program(ctx));
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,
- ctx->FragmentProgram._Current);
- }
- else {
- /* no fragment program */
- _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
- }
+ /* No fragment program */
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
+ _mesa_reference_fragprog(ctx, &ctx->FragmentProgram._TexEnvProgram,
+ NULL);
+ }
- /* Examine vertex program after fragment program as
- * _mesa_get_fixed_func_vertex_program() needs to know active
- * fragprog inputs.
- */
- if (ctx->VertexProgram._Enabled) {
- /* use user-defined vertex program */
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
- ctx->VertexProgram.Current);
+ if (gsProg && gsProg->LinkStatus
+ && gsProg->_LinkedShaders[MESA_SHADER_GEOMETRY]) {
+ /* Use GLSL geometry shader */
+ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current,
+ (struct gl_geometry_program *)
+ gsProg->_LinkedShaders[MESA_SHADER_GEOMETRY]->Program);
+ } else {
+ /* No geometry program */
+ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current, NULL);
+ }
+
+ /* Examine vertex program after fragment program as
+ * _mesa_get_fixed_func_vertex_program() needs to know active
+ * fragprog inputs.
+ */
+ if (vsProg && vsProg->LinkStatus
+ && vsProg->_LinkedShaders[MESA_SHADER_VERTEX]) {
+ /* Use GLSL vertex shader */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
+ (struct gl_vertex_program *)
+ vsProg->_LinkedShaders[MESA_SHADER_VERTEX]->Program);
+ }
+ else if (ctx->VertexProgram._Enabled) {
+ /* Use user-defined vertex program */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
+ ctx->VertexProgram.Current);
+ }
+ else if (ctx->VertexProgram._MaintainTnlProgram) {
+ /* Use vertex program generated from fixed-function state */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
+ _mesa_get_fixed_func_vertex_program(ctx));
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram,
+ ctx->VertexProgram._Current);
+ }
+ else {
+ /* no vertex program */
+ _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
+ }
+
+ /* Let the driver know what's happening:
+ */
+ if (ctx->FragmentProgram._Current != prevFP) {
+ new_state |= _NEW_PROGRAM;
+ if (ctx->Driver.BindProgram) {
+ ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
+ (struct gl_program *) ctx->FragmentProgram._Current);
}
- else if (ctx->VertexProgram._MaintainTnlProgram) {
- /* Use vertex program generated from fixed-function state.
- */
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
- _mesa_get_fixed_func_vertex_program(ctx));
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._TnlProgram,
- ctx->VertexProgram._Current);
+ }
+
+ if (ctx->GeometryProgram._Current != prevGP) {
+ new_state |= _NEW_PROGRAM;
+ if (ctx->Driver.BindProgram) {
+ ctx->Driver.BindProgram(ctx, MESA_GEOMETRY_PROGRAM,
+ (struct gl_program *) ctx->GeometryProgram._Current);
}
- else {
- /* no vertex program */
- _mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current, NULL);
+ }
+
+ if (ctx->VertexProgram._Current != prevVP) {
+ new_state |= _NEW_PROGRAM;
+ if (ctx->Driver.BindProgram) {
+ ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
+ (struct gl_program *) ctx->VertexProgram._Current);
}
}
- if (ctx->VertexProgram._Current)
- assert(ctx->VertexProgram._Current->Base.Parameters);
- if (ctx->FragmentProgram._Current)
- assert(ctx->FragmentProgram._Current->Base.Parameters);
+ return new_state;
+}
- /* XXX: get rid of _Active flag.
- */
-#if 1
- ctx->FragmentProgram._Active = ctx->FragmentProgram._Enabled;
- if (ctx->FragmentProgram._MaintainTexEnvProgram &&
- !ctx->FragmentProgram._Enabled) {
- if (ctx->FragmentProgram._UseTexEnvProgram)
- ctx->FragmentProgram._Active = GL_TRUE;
+/**
+ * Examine shader constants and return either _NEW_PROGRAM_CONSTANTS or 0.
+ */
+static GLbitfield
+update_program_constants(struct gl_context *ctx)
+{
+ GLbitfield new_state = 0x0;
+
+ if (ctx->FragmentProgram._Current) {
+ const struct gl_program_parameter_list *params =
+ ctx->FragmentProgram._Current->Base.Parameters;
+ if (params && params->StateFlags & ctx->NewState) {
+ new_state |= _NEW_PROGRAM_CONSTANTS;
+ }
}
-#endif
- /* Let the driver know what's happening:
- */
- if (ctx->FragmentProgram._Current != prevFP && ctx->Driver.BindProgram) {
- ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB,
- (struct gl_program *) ctx->FragmentProgram._Current);
+ if (ctx->GeometryProgram._Current) {
+ const struct gl_program_parameter_list *params =
+ ctx->GeometryProgram._Current->Base.Parameters;
+ /*FIXME: StateFlags is always 0 because we have unnamed constant
+ * not state changes */
+ if (params /*&& params->StateFlags & ctx->NewState*/) {
+ new_state |= _NEW_PROGRAM_CONSTANTS;
+ }
}
-
- if (ctx->VertexProgram._Current != prevVP && ctx->Driver.BindProgram) {
- ctx->Driver.BindProgram(ctx, GL_VERTEX_PROGRAM_ARB,
- (struct gl_program *) ctx->VertexProgram._Current);
+
+ if (ctx->VertexProgram._Current) {
+ const struct gl_program_parameter_list *params =
+ ctx->VertexProgram._Current->Base.Parameters;
+ if (params && params->StateFlags & ctx->NewState) {
+ new_state |= _NEW_PROGRAM_CONSTANTS;
+ }
}
+
+ return new_state;
}
+
+
static void
-update_viewport_matrix(GLcontext *ctx)
+update_viewport_matrix(struct gl_context *ctx)
{
const GLfloat depthMax = ctx->DrawBuffer->_DepthMaxF;
* Update derived multisample state.
*/
static void
-update_multisample(GLcontext *ctx)
+update_multisample(struct gl_context *ctx)
{
ctx->Multisample._Enabled = GL_FALSE;
if (ctx->Multisample.Enabled &&
/**
- * Update derived color/blend/logicop state.
+ * Update the ctx->Color._ClampFragmentColor field
*/
static void
-update_color(GLcontext *ctx)
+update_clamp_fragment_color(struct gl_context *ctx)
{
- /* This is needed to support 1.1's RGB logic ops AND
- * 1.0's blending logicops.
- */
- ctx->Color._LogicOpEnabled = RGBA_LOGICOP_ENABLED(ctx);
+ if (ctx->Color.ClampFragmentColor == GL_FIXED_ONLY_ARB)
+ ctx->Color._ClampFragmentColor =
+ !ctx->DrawBuffer || !ctx->DrawBuffer->Visual.floatMode;
+ else
+ ctx->Color._ClampFragmentColor = ctx->Color.ClampFragmentColor;
+}
+
+
+/**
+ * Update the ctx->Color._ClampVertexColor field
+ */
+static void
+update_clamp_vertex_color(struct gl_context *ctx)
+{
+ if (ctx->Light.ClampVertexColor == GL_FIXED_ONLY_ARB)
+ ctx->Light._ClampVertexColor =
+ !ctx->DrawBuffer || !ctx->DrawBuffer->Visual.floatMode;
+ else
+ ctx->Light._ClampVertexColor = ctx->Light.ClampVertexColor;
+}
+
+
+/**
+ * Update the ctx->Color._ClampReadColor field
+ */
+static void
+update_clamp_read_color(struct gl_context *ctx)
+{
+ if (ctx->Color.ClampReadColor == GL_FIXED_ONLY_ARB)
+ ctx->Color._ClampReadColor =
+ !ctx->ReadBuffer || !ctx->ReadBuffer->Visual.floatMode;
+ else
+ ctx->Color._ClampReadColor = ctx->Color.ClampReadColor;
+}
+
+/**
+ * Update the ctx->VertexProgram._TwoSideEnabled flag.
+ */
+static void
+update_twoside(struct gl_context *ctx)
+{
+ if (ctx->Shader.CurrentVertexProgram ||
+ ctx->VertexProgram._Enabled) {
+ ctx->VertexProgram._TwoSideEnabled = ctx->VertexProgram.TwoSideEnabled;
+ } else {
+ ctx->VertexProgram._TwoSideEnabled = (ctx->Light.Enabled &&
+ ctx->Light.Model.TwoSide);
+ }
}
/*
- * Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or DD_TRI_OFFSET
+ * Check polygon state and set DD_TRI_OFFSET
* in ctx->_TriangleCaps if needed.
*/
static void
-update_polygon(GLcontext *ctx)
+update_polygon(struct gl_context *ctx)
{
- ctx->_TriangleCaps &= ~(DD_TRI_CULL_FRONT_BACK | DD_TRI_OFFSET);
-
- if (ctx->Polygon.CullFlag && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
- ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
+ ctx->_TriangleCaps &= ~DD_TRI_OFFSET;
if ( ctx->Polygon.OffsetPoint
|| ctx->Polygon.OffsetLine
*/
#if 0
static void
-update_tricaps(GLcontext *ctx, GLbitfield new_state)
+update_tricaps(struct gl_context *ctx, GLbitfield new_state)
{
ctx->_TriangleCaps = 0;
if (1/*new_state & _NEW_POINT*/) {
if (ctx->Point.SmoothFlag)
ctx->_TriangleCaps |= DD_POINT_SMOOTH;
- if (ctx->Point.Size != 1.0F)
- ctx->_TriangleCaps |= DD_POINT_SIZE;
if (ctx->Point._Attenuated)
ctx->_TriangleCaps |= DD_POINT_ATTEN;
}
ctx->_TriangleCaps |= DD_LINE_SMOOTH;
if (ctx->Line.StippleFlag)
ctx->_TriangleCaps |= DD_LINE_STIPPLE;
- if (ctx->Line.Width != 1.0)
- ctx->_TriangleCaps |= DD_LINE_WIDTH;
}
/*
if (ctx->Polygon.FrontMode != GL_FILL
|| ctx->Polygon.BackMode != GL_FILL)
ctx->_TriangleCaps |= DD_TRI_UNFILLED;
- if (ctx->Polygon.CullFlag
- && ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
- ctx->_TriangleCaps |= DD_TRI_CULL_FRONT_BACK;
if (ctx->Polygon.OffsetPoint ||
ctx->Polygon.OffsetLine ||
ctx->Polygon.OffsetFill)
*/
if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)
ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;
- if (ctx->Light.ShadeModel == GL_FLAT)
- ctx->_TriangleCaps |= DD_FLATSHADE;
- if (NEED_SECONDARY_COLOR(ctx))
+ if (_mesa_need_secondary_color(ctx))
ctx->_TriangleCaps |= DD_SEPARATE_SPECULAR;
-
- /*
- * Stencil
- */
- if (ctx->Stencil._TestTwoSide)
- ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;
}
#endif
/**
* Compute derived GL state.
- * If __GLcontextRec::NewState is non-zero then this function \b must
+ * If __struct gl_contextRec::NewState is non-zero then this function \b must
* be called before rendering anything.
*
* Calls dd_function_table::UpdateState to perform any internal state
* _mesa_update_lighting() and _mesa_update_tnl_spaces().
*/
void
-_mesa_update_state_locked( GLcontext *ctx )
+_mesa_update_state_locked( struct gl_context *ctx )
{
GLbitfield new_state = ctx->NewState;
GLbitfield prog_flags = _NEW_PROGRAM;
+ GLbitfield new_prog_state = 0x0;
+
+ if (new_state == _NEW_CURRENT_ATTRIB)
+ goto out;
if (MESA_VERBOSE & VERBOSE_STATE)
_mesa_print_state("_mesa_update_state", new_state);
+ /* Determine which state flags effect vertex/fragment program state */
+ if (ctx->FragmentProgram._MaintainTexEnvProgram) {
+ prog_flags |= (_NEW_BUFFERS | _NEW_TEXTURE | _NEW_FOG |
+ _NEW_ARRAY | _NEW_LIGHT | _NEW_POINT | _NEW_RENDERMODE |
+ _NEW_PROGRAM | _NEW_FRAG_CLAMP | _NEW_COLOR);
+ }
+ if (ctx->VertexProgram._MaintainTnlProgram) {
+ prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX |
+ _NEW_TRANSFORM | _NEW_POINT |
+ _NEW_FOG | _NEW_LIGHT |
+ _MESA_NEW_NEED_EYE_COORDS);
+ }
+
+ /*
+ * Now update derived state info
+ */
+
+ if (new_state & prog_flags)
+ update_program_enables( ctx );
+
if (new_state & (_NEW_MODELVIEW|_NEW_PROJECTION))
_mesa_update_modelview_project( ctx, new_state );
if (new_state & _NEW_LIGHT)
_mesa_update_lighting( ctx );
- if (new_state & _NEW_STENCIL)
+ if (new_state & (_NEW_LIGHT | _NEW_PROGRAM))
+ update_twoside( ctx );
+
+ if (new_state & (_NEW_LIGHT | _NEW_BUFFERS))
+ update_clamp_vertex_color(ctx);
+
+ if (new_state & (_NEW_STENCIL | _NEW_BUFFERS))
_mesa_update_stencil( ctx );
-#if FEATURE_pixel_transfer
- if (new_state & _IMAGE_NEW_TRANSFER_STATE)
+ if (new_state & _NEW_PIXEL)
_mesa_update_pixel( ctx, new_state );
-#endif
- if (new_state & _DD_NEW_SEPARATE_SPECULAR)
+ if (new_state & _MESA_NEW_SEPARATE_SPECULAR)
update_separate_specular( ctx );
- if (new_state & (_NEW_ARRAY | _NEW_PROGRAM))
- update_arrays( ctx );
-
if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT))
update_viewport_matrix(ctx);
- if (new_state & _NEW_MULTISAMPLE)
+ if (new_state & (_NEW_MULTISAMPLE | _NEW_BUFFERS))
update_multisample( ctx );
- if (new_state & _NEW_COLOR)
- update_color( ctx );
+ if (new_state & (_NEW_COLOR | _NEW_BUFFERS))
+ update_clamp_read_color(ctx);
+
+ if(new_state & (_NEW_FRAG_CLAMP | _NEW_BUFFERS))
+ update_clamp_fragment_color(ctx);
#if 0
if (new_state & (_NEW_POINT | _NEW_LINE | _NEW_POLYGON | _NEW_LIGHT
- | _NEW_STENCIL | _DD_NEW_SEPARATE_SPECULAR))
+ | _NEW_STENCIL | _MESA_NEW_SEPARATE_SPECULAR))
update_tricaps( ctx, new_state );
#endif
if (new_state & _MESA_NEW_NEED_EYE_COORDS)
_mesa_update_tnl_spaces( ctx, new_state );
- if (ctx->FragmentProgram._MaintainTexEnvProgram) {
- prog_flags |= (_NEW_TEXTURE | _NEW_FOG | _DD_NEW_SEPARATE_SPECULAR);
- }
- if (ctx->VertexProgram._MaintainTnlProgram) {
- prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX |
- _NEW_TRANSFORM | _NEW_POINT |
- _NEW_FOG | _NEW_LIGHT |
- _MESA_NEW_NEED_EYE_COORDS);
+ if (new_state & prog_flags) {
+ /* When we generate programs from fixed-function vertex/fragment state
+ * this call may generate/bind a new program. If so, we need to
+ * propogate the _NEW_PROGRAM flag to the driver.
+ */
+ new_prog_state |= update_program( ctx );
}
- if (new_state & prog_flags)
- update_program( ctx );
+ if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))
+ _mesa_update_array_object_max_element(ctx, ctx->Array.ArrayObj);
+ out:
+ new_prog_state |= update_program_constants(ctx);
/*
* Give the driver a chance to act upon the new_state flags.
* Set ctx->NewState to zero to avoid recursion if
* Driver.UpdateState() has to call FLUSH_VERTICES(). (fixed?)
*/
- new_state = ctx->NewState;
+ new_state = ctx->NewState | new_prog_state;
ctx->NewState = 0;
ctx->Driver.UpdateState(ctx, new_state);
ctx->Array.NewState = 0;
+ if (!ctx->Array.RebindArrays)
+ ctx->Array.RebindArrays = (new_state & (_NEW_ARRAY | _NEW_PROGRAM)) != 0;
}
/* This is the usual entrypoint for state updates:
*/
void
-_mesa_update_state( GLcontext *ctx )
+_mesa_update_state( struct gl_context *ctx )
{
_mesa_lock_context_textures(ctx);
_mesa_update_state_locked(ctx);
_mesa_unlock_context_textures(ctx);
}
+
+
+
+
+/**
+ * Want to figure out which fragment program inputs are actually
+ * constant/current values from ctx->Current. These should be
+ * referenced as a tracked state variable rather than a fragment
+ * program input, to save the overhead of putting a constant value in
+ * every submitted vertex, transferring it to hardware, interpolating
+ * it across the triangle, etc...
+ *
+ * When there is a VP bound, just use vp->outputs. But when we're
+ * generating vp from fixed function state, basically want to
+ * calculate:
+ *
+ * vp_out_2_fp_in( vp_in_2_vp_out( varying_inputs ) |
+ * potential_vp_outputs )
+ *
+ * Where potential_vp_outputs is calculated by looking at enabled
+ * texgen, etc.
+ *
+ * The generated fragment program should then only declare inputs that
+ * may vary or otherwise differ from the ctx->Current values.
+ * Otherwise, the fp should track them as state values instead.
+ */
+void
+_mesa_set_varying_vp_inputs( struct gl_context *ctx,
+ GLbitfield64 varying_inputs )
+{
+ if (ctx->varying_vp_inputs != varying_inputs) {
+ ctx->varying_vp_inputs = varying_inputs;
+ ctx->NewState |= _NEW_ARRAY;
+ /*printf("%s %x\n", __FUNCTION__, varying_inputs);*/
+ }
+}
+
+
+/**
+ * Used by drivers to tell core Mesa that the driver is going to
+ * install/ use its own vertex program. In particular, this will
+ * prevent generated fragment programs from using state vars instead
+ * of ordinary varyings/inputs.
+ */
+void
+_mesa_set_vp_override(struct gl_context *ctx, GLboolean flag)
+{
+ if (ctx->VertexProgram._Overriden != flag) {
+ ctx->VertexProgram._Overriden = flag;
+
+ /* Set one of the bits which will trigger fragment program
+ * regeneration:
+ */
+ ctx->NewState |= _NEW_PROGRAM;
+ }
+}