* \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 "light.h"
#include "matrix.h"
#include "pixel.h"
-#include "shader/program.h"
-#include "shader/prog_parameter.h"
+#include "program/program.h"
+#include "program/prog_parameter.h"
#include "state.h"
#include "stencil.h"
#include "texenvprogram.h"
#include "texobj.h"
#include "texstate.h"
-#include "viewport.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;
}
-/**
- * Compute the index of the last array element that can be safely accessed
- * in a vertex array. We can really only do this when the array lives in
- * a VBO.
- * The array->_MaxElement field will be updated.
- * Later in glDrawArrays/Elements/etc we can do some bounds checking.
- */
-static void
-compute_max_element(struct gl_client_array *array)
-{
- assert(array->Enabled);
- if (array->BufferObj->Name) {
- GLsizeiptrARB offset = (GLsizeiptrARB) array->Ptr;
- GLsizeiptrARB obj_size = (GLsizeiptrARB) array->BufferObj->Size;
-
- if (offset < obj_size) {
- array->_MaxElement = (obj_size - offset +
- array->StrideB -
- array->_ElementSize) / array->StrideB;
- } else {
- array->_MaxElement = 0;
- }
- /* Compute the max element we can access in the VBO without going
- * out of bounds.
- */
- array->_MaxElement = ((GLsizeiptrARB) array->BufferObj->Size
- - (GLsizeiptrARB) array->Ptr + array->StrideB
- - array->_ElementSize) / array->StrideB;
- }
- else {
- /* user-space array, no idea how big it is */
- array->_MaxElement = 2 * 1000 * 1000 * 1000; /* just a big number */
- }
-}
-
-
/**
* Helper for update_arrays().
* \return min(current min, array->_MaxElement).
static GLuint
update_min(GLuint min, struct gl_client_array *array)
{
- compute_max_element(array);
+ _mesa_update_array_max_element(array);
return MIN2(min, array->_MaxElement);
}
* Need to do this upon new array state or new buffer object state.
*/
static void
-update_arrays( GLcontext *ctx )
+update_arrays( struct gl_context *ctx )
{
struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
GLuint i, min = ~0;
* This needs to be done before texture state validation.
*/
static void
-update_program_enables(GLcontext *ctx)
+update_program_enables(struct gl_context *ctx)
{
- /* 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
/**
- * Update vertex/fragment program state. In particular, update these fields:
- * ctx->VertexProgram._Current
- * ctx->VertexProgram._TnlProgram,
- * These point to the highest priority enabled vertex/fragment program or are
- * NULL if fixed-function processing is to be done.
+ * 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.
* or fragment program is being used.
*/
static GLbitfield
-update_program(GLcontext *ctx)
+update_program(struct gl_context *ctx)
{
- const struct gl_shader_program *shProg = ctx->Shader.CurrentProgram;
+ const struct gl_shader_program *vsProg = ctx->Shader.CurrentVertexProgram;
+ const struct gl_shader_program *gsProg = ctx->Shader.CurrentGeometryProgram;
+ const 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;
/*
* come up, or matter.
*/
- if (shProg && shProg->LinkStatus && shProg->FragmentProgram) {
- /* Use shader programs */
+ if (fsProg && fsProg->LinkStatus && fsProg->FragmentProgram) {
+ /* Use GLSL fragment shader */
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
- shProg->FragmentProgram);
+ fsProg->FragmentProgram);
}
else if (ctx->FragmentProgram._Enabled) {
- /* use user-defined vertex program */
+ /* Use user-defined fragment program */
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current,
ctx->FragmentProgram.Current);
}
else if (ctx->FragmentProgram._MaintainTexEnvProgram) {
- /* Use fragment program generated from fixed-function state.
- */
+ /* 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 */
+ /* No fragment program */
_mesa_reference_fragprog(ctx, &ctx->FragmentProgram._Current, NULL);
}
+ if (gsProg && gsProg->LinkStatus && gsProg->GeometryProgram) {
+ /* Use GLSL geometry shader */
+ _mesa_reference_geomprog(ctx, &ctx->GeometryProgram._Current,
+ gsProg->GeometryProgram);
+ } 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 (shProg && shProg->LinkStatus && shProg->VertexProgram) {
- /* Use shader programs */
+ if (vsProg && vsProg->LinkStatus && vsProg->VertexProgram) {
+ /* Use GLSL vertex shader */
_mesa_reference_vertprog(ctx, &ctx->VertexProgram._Current,
- shProg->VertexProgram);
+ vsProg->VertexProgram);
}
else if (ctx->VertexProgram._Enabled) {
- /* use user-defined vertex program */
+ /* 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.
- */
+ /* 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,
(struct gl_program *) ctx->FragmentProgram._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);
+ }
+ }
+
if (ctx->VertexProgram._Current != prevVP) {
new_state |= _NEW_PROGRAM;
if (ctx->Driver.BindProgram) {
* Examine shader constants and return either _NEW_PROGRAM_CONSTANTS or 0.
*/
static GLbitfield
-update_program_constants(GLcontext *ctx)
+update_program_constants(struct gl_context *ctx)
{
GLbitfield new_state = 0x0;
}
}
+ 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) {
const struct gl_program_parameter_list *params =
ctx->VertexProgram._Current->Base.Parameters;
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.
*/
static void
-update_color(GLcontext *ctx)
+update_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);
+ ctx->Color._LogicOpEnabled = _mesa_rgba_logicop_enabled(ctx);
}
+/**
+ * Update the ctx->Color._ClampFragmentColor field
+ */
+static void
+update_clamp_fragment_color(struct gl_context *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;
+}
+
+
+
+
/*
* Check polygon state and set DD_TRI_CULL_FRONT_BACK and/or 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 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;
}
/*
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;
/*
/**
* 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;
/* Determine which state flags effect vertex/fragment program state */
if (ctx->FragmentProgram._MaintainTexEnvProgram) {
- prog_flags |= (_NEW_TEXTURE | _NEW_FOG |
+ prog_flags |= (_NEW_BUFFERS | _NEW_TEXTURE | _NEW_FOG |
_NEW_ARRAY | _NEW_LIGHT | _NEW_POINT | _NEW_RENDERMODE |
- _NEW_PROGRAM);
+ _NEW_PROGRAM | _NEW_FRAG_CLAMP);
}
if (ctx->VertexProgram._MaintainTnlProgram) {
prog_flags |= (_NEW_ARRAY | _NEW_TEXTURE | _NEW_TEXTURE_MATRIX |
if (new_state & _NEW_LIGHT)
_mesa_update_lighting( 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 (new_state & _MESA_NEW_TRANSFER_STATE)
+ if (new_state & _NEW_PIXEL)
_mesa_update_pixel( ctx, new_state );
if (new_state & _DD_NEW_SEPARATE_SPECULAR)
update_separate_specular( ctx );
- if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))
- update_arrays( ctx );
-
if (new_state & (_NEW_BUFFERS | _NEW_VIEWPORT))
update_viewport_matrix(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_prog_state |= update_program( ctx );
}
+ if (new_state & (_NEW_ARRAY | _NEW_PROGRAM | _NEW_BUFFER_OBJECT))
+ update_arrays( ctx );
out:
new_prog_state |= update_program_constants(ctx);
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);
* Otherwise, the fp should track them as state values instead.
*/
void
-_mesa_set_varying_vp_inputs( GLcontext *ctx,
+_mesa_set_varying_vp_inputs( struct gl_context *ctx,
GLbitfield varying_inputs )
{
if (ctx->varying_vp_inputs != varying_inputs) {
ctx->varying_vp_inputs = varying_inputs;
ctx->NewState |= _NEW_ARRAY;
- /*_mesa_printf("%s %x\n", __FUNCTION__, varying_inputs);*/
+ /*printf("%s %x\n", __FUNCTION__, varying_inputs);*/
}
}
* of ordinary varyings/inputs.
*/
void
-_mesa_set_vp_override(GLcontext *ctx, GLboolean flag)
+_mesa_set_vp_override(struct gl_context *ctx, GLboolean flag)
{
if (ctx->VertexProgram._Overriden != flag) {
ctx->VertexProgram._Overriden = flag;
projects / mesa.git / blobdiff