OpenHarmony/third_party_mesa3d
2
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
9983a27cbe4f123f4e7fcce59c0d8b61b0f73924
third_party_mesa3d/src/mesa/shader/program.c
Brian Paul 9983a27cbe added _mesa_alloc_instructions() utility function
2006-08-25 15:13:25 +00:00

2208 lines
64 KiB
C
Raw Blame History

/*
* Mesa 3-D graphics library
* Version: 6.5.1
*
* Copyright (C) 1999-2006 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.
*/
/**
* \file program.c
* Vertex and fragment program support functions.
* \author Brian Paul
*/
#include "glheader.h"
#include "context.h"
#include "hash.h"
#include "imports.h"
#include "macros.h"
#include "mtypes.h"
#include "program.h"
#include "nvfragparse.h"
#include "program_instruction.h"
#include "nvvertparse.h"
#include "atifragshader.h"
static const char *
make_state_string(const GLint stateTokens[6]);
static GLuint
make_state_flags(const GLint state[]);
/**********************************************************************/
/* Utility functions */
/**********************************************************************/
/* A pointer to this dummy program is put into the hash table when
* glGenPrograms is called.
*/
struct gl_program _mesa_DummyProgram;
/**
* Init context's vertex/fragment program state
*/
void
_mesa_init_program(GLcontext *ctx)
{
GLuint i;
ctx->Program.ErrorPos = -1;
ctx->Program.ErrorString = _mesa_strdup("");
#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
ctx->VertexProgram.Enabled = GL_FALSE;
ctx->VertexProgram.PointSizeEnabled = GL_FALSE;
ctx->VertexProgram.TwoSideEnabled = GL_FALSE;
ctx->VertexProgram.Current = (struct gl_vertex_program *) ctx->Shared->DefaultVertexProgram;
assert(ctx->VertexProgram.Current);
ctx->VertexProgram.Current->Base.RefCount++;
for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) {
ctx->VertexProgram.TrackMatrix[i] = GL_NONE;
ctx->VertexProgram.TrackMatrixTransform[i] = GL_IDENTITY_NV;
}
#endif
#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
ctx->FragmentProgram.Enabled = GL_FALSE;
ctx->FragmentProgram.Current = (struct gl_fragment_program *) ctx->Shared->DefaultFragmentProgram;
assert(ctx->FragmentProgram.Current);
ctx->FragmentProgram.Current->Base.RefCount++;
#endif
/* XXX probably move this stuff */
#if FEATURE_ATI_fragment_shader
ctx->ATIFragmentShader.Enabled = GL_FALSE;
ctx->ATIFragmentShader.Current = (struct ati_fragment_shader *) ctx->Shared->DefaultFragmentShader;
assert(ctx->ATIFragmentShader.Current);
ctx->ATIFragmentShader.Current->RefCount++;
#endif
}
/**
* Free a context's vertex/fragment program state
*/
void
_mesa_free_program_data(GLcontext *ctx)
{
#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
if (ctx->VertexProgram.Current) {
ctx->VertexProgram.Current->Base.RefCount--;
if (ctx->VertexProgram.Current->Base.RefCount <= 0)
ctx->Driver.DeleteProgram(ctx, &(ctx->VertexProgram.Current->Base));
}
#endif
#if FEATURE_NV_fragment_program || FEATURE_ARB_fragment_program
if (ctx->FragmentProgram.Current) {
ctx->FragmentProgram.Current->Base.RefCount--;
if (ctx->FragmentProgram.Current->Base.RefCount <= 0)
ctx->Driver.DeleteProgram(ctx, &(ctx->FragmentProgram.Current->Base));
}
#endif
/* XXX probably move this stuff */
#if FEATURE_ATI_fragment_shader
if (ctx->ATIFragmentShader.Current) {
ctx->ATIFragmentShader.Current->RefCount--;
if (ctx->ATIFragmentShader.Current->RefCount <= 0) {
_mesa_free(ctx->ATIFragmentShader.Current);
}
}
#endif
_mesa_free((void *) ctx->Program.ErrorString);
}
/**
* Set the vertex/fragment program error state (position and error string).
* This is generally called from within the parsers.
*/
void
_mesa_set_program_error(GLcontext *ctx, GLint pos, const char *string)
{
ctx->Program.ErrorPos = pos;
_mesa_free((void *) ctx->Program.ErrorString);
if (!string)
string = "";
ctx->Program.ErrorString = _mesa_strdup(string);
}
/**
* Find the line number and column for 'pos' within 'string'.
* Return a copy of the line which contains 'pos'. Free the line with
* _mesa_free().
* \param string the program string
* \param pos the position within the string
* \param line returns the line number corresponding to 'pos'.
* \param col returns the column number corresponding to 'pos'.
* \return copy of the line containing 'pos'.
*/
const GLubyte *
_mesa_find_line_column(const GLubyte *string, const GLubyte *pos,
GLint *line, GLint *col)
{
const GLubyte *lineStart = string;
const GLubyte *p = string;
GLubyte *s;
int len;
*line = 1;
while (p != pos) {
if (*p == (GLubyte) '\n') {
(*line)++;
lineStart = p + 1;
}
p++;
}
*col = (pos - lineStart) + 1;
/* return copy of this line */
while (*p != 0 && *p != '\n')
p++;
len = p - lineStart;
s = (GLubyte *) _mesa_malloc(len + 1);
_mesa_memcpy(s, lineStart, len);
s[len] = 0;
return s;
}
/**
* Initialize a new vertex/fragment program object.
*/
static struct gl_program *
_mesa_init_program_struct( GLcontext *ctx, struct gl_program *prog,
GLenum target, GLuint id)
{
(void) ctx;
if (prog) {
prog->Id = id;
prog->Target = target;
prog->Resident = GL_TRUE;
prog->RefCount = 1;
}
return prog;
}
/**
* Initialize a new fragment program object.
*/
struct gl_program *
_mesa_init_fragment_program( GLcontext *ctx, struct gl_fragment_program *prog,
GLenum target, GLuint id)
{
if (prog)
return _mesa_init_program_struct( ctx, &prog->Base, target, id );
else
return NULL;
}
/**
* Initialize a new vertex program object.
*/
struct gl_program *
_mesa_init_vertex_program( GLcontext *ctx, struct gl_vertex_program *prog,
GLenum target, GLuint id)
{
if (prog)
return _mesa_init_program_struct( ctx, &prog->Base, target, id );
else
return NULL;
}
/**
* Allocate and initialize a new fragment/vertex program object but
* don't put it into the program hash table. Called via
* ctx->Driver.NewProgram. May be overridden (ie. replaced) by a
* device driver function to implement OO deriviation with additional
* types not understood by this function.
*
* \param ctx context
* \param id program id/number
* \param target program target/type
* \return pointer to new program object
*/
struct gl_program *
_mesa_new_program(GLcontext *ctx, GLenum target, GLuint id)
{
switch (target) {
case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */
return _mesa_init_vertex_program(ctx, CALLOC_STRUCT(gl_vertex_program),
target, id );
case GL_FRAGMENT_PROGRAM_NV:
case GL_FRAGMENT_PROGRAM_ARB:
return _mesa_init_fragment_program(ctx,
CALLOC_STRUCT(gl_fragment_program),
target, id );
default:
_mesa_problem(ctx, "bad target in _mesa_new_program");
return NULL;
}
}
/**
* Delete a program and remove it from the hash table, ignoring the
* reference count.
* Called via ctx->Driver.DeleteProgram. May be wrapped (OO deriviation)
* by a device driver function.
*/
void
_mesa_delete_program(GLcontext *ctx, struct gl_program *prog)
{
(void) ctx;
ASSERT(prog);
if (prog->String)
_mesa_free(prog->String);
if (prog->Instructions) {
GLuint i;
for (i = 0; i < prog->NumInstructions; i++) {
if (prog->Instructions[i].Data)
_mesa_free(prog->Instructions[i].Data);
}
_mesa_free(prog->Instructions);
}
if (prog->Parameters) {
_mesa_free_parameter_list(prog->Parameters);
}
_mesa_free(prog);
}
/**
* Return the gl_program object for a given ID.
* Basically just a wrapper for _mesa_HashLookup() to avoid a lot of
* casts elsewhere.
*/
struct gl_program *
_mesa_lookup_program(GLcontext *ctx, GLuint id)
{
if (id)
return (struct gl_program *) _mesa_HashLookup(ctx->Shared->Programs, id);
else
return NULL;
}
/**********************************************************************/
/* Program parameter functions */
/**********************************************************************/
struct gl_program_parameter_list *
_mesa_new_parameter_list(void)
{
return (struct gl_program_parameter_list *)
_mesa_calloc(sizeof(struct gl_program_parameter_list));
}
/**
* Free a parameter list and all its parameters
*/
void
_mesa_free_parameter_list(struct gl_program_parameter_list *paramList)
{
GLuint i;
for (i = 0; i < paramList->NumParameters; i++) {
if (paramList->Parameters[i].Name)
_mesa_free((void *) paramList->Parameters[i].Name);
}
_mesa_free(paramList->Parameters);
if (paramList->ParameterValues)
_mesa_align_free(paramList->ParameterValues);
_mesa_free(paramList);
}
/**
* Add a new parameter to a parameter list.
* \param paramList the list to add the parameter to
* \param name the parameter name, will be duplicated/copied!
* \param values initial parameter value, 4 GLfloats
* \param type type of parameter, such as
* \return index of new parameter in the list, or -1 if error (out of mem)
*/
static GLint
add_parameter(struct gl_program_parameter_list *paramList,
const char *name, const GLfloat values[4],
enum register_file type)
{
const GLuint n = paramList->NumParameters;
if (n == paramList->Size) {
/* Need to grow the parameter list array */
if (paramList->Size == 0)
paramList->Size = 8;
else
paramList->Size *= 2;
/* realloc arrays */
paramList->Parameters = (struct gl_program_parameter *)
_mesa_realloc(paramList->Parameters,
n * sizeof(struct gl_program_parameter),
paramList->Size * sizeof(struct gl_program_parameter));
paramList->ParameterValues = (GLfloat (*)[4])
_mesa_align_realloc(paramList->ParameterValues, /* old buf */
n * 4 * sizeof(GLfloat), /* old size */
paramList->Size * 4 *sizeof(GLfloat), /* new sz */
16);
}
if (!paramList->Parameters ||
!paramList->ParameterValues) {
/* out of memory */
paramList->NumParameters = 0;
paramList->Size = 0;
return -1;
}
else {
paramList->NumParameters = n + 1;
_mesa_memset(&paramList->Parameters[n], 0,
sizeof(struct gl_program_parameter));
paramList->Parameters[n].Name = name ? _mesa_strdup(name) : NULL;
paramList->Parameters[n].Type = type;
if (values)
COPY_4V(paramList->ParameterValues[n], values);
return (GLint) n;
}
}
/**
* Add a new named program parameter (Ex: NV_fragment_program DEFINE statement)
* \return index of the new entry in the parameter list
*/
GLint
_mesa_add_named_parameter(struct gl_program_parameter_list *paramList,
const char *name, const GLfloat values[4])
{
return add_parameter(paramList, name, values, PROGRAM_NAMED_PARAM);
}
/**
* Add a new named constant to the parameter list.
* This will be used when the program contains something like this:
* PARAM myVals = { 0, 1, 2, 3 };
*
* \param paramList - the parameter list
* \param values - four float values
* \return index of the new parameter.
*/
GLint
_mesa_add_named_constant(struct gl_program_parameter_list *paramList,
const char *name, const GLfloat values[4])
{
return add_parameter(paramList, name, values, PROGRAM_CONSTANT);
}
/**
* Add a new unnamed constant to the parameter list.
* This will be used when the program contains something like this:
* MOV r, { 0, 1, 2, 3 };
*
* \param paramList - the parameter list
* \param values - four float values
* \return index of the new parameter.
*/
GLint
_mesa_add_unnamed_constant(struct gl_program_parameter_list *paramList,
const GLfloat values[4])
{
return add_parameter(paramList, NULL, values, PROGRAM_CONSTANT);
}
/**
* Add a new state reference to the parameter list.
* This will be used when the program contains something like this:
* PARAM ambient = state.material.front.ambient;
*
* \param paramList - the parameter list
* \param state - an array of 6 state tokens
* \return index of the new parameter.
*/
GLint
_mesa_add_state_reference(struct gl_program_parameter_list *paramList,
const GLint *stateTokens)
{
/* XXX we should probably search the current parameter list to see if
* the new state reference is already present.
*/
GLint index;
const char *name = make_state_string(stateTokens);
index = add_parameter(paramList, name, NULL, PROGRAM_STATE_VAR);
if (index >= 0) {
GLuint i;
for (i = 0; i < 6; i++) {
paramList->Parameters[index].StateIndexes[i]
= (enum state_index) stateTokens[i];
}
paramList->StateFlags |=
make_state_flags(stateTokens);
}
/* free name string here since we duplicated it in add_parameter() */
_mesa_free((void *) name);
return index;
}
/**
* Lookup a parameter value by name in the given parameter list.
* \return pointer to the float[4] values.
*/
GLfloat *
_mesa_lookup_parameter_value(struct gl_program_parameter_list *paramList,
GLsizei nameLen, const char *name)
{
GLuint i;
if (!paramList)
return NULL;
if (nameLen == -1) {
/* name is null-terminated */
for (i = 0; i < paramList->NumParameters; i++) {
if (paramList->Parameters[i].Name &&
_mesa_strcmp(paramList->Parameters[i].Name, name) == 0)
return paramList->ParameterValues[i];
}
}
else {
/* name is not null-terminated, use nameLen */
for (i = 0; i < paramList->NumParameters; i++) {
if (paramList->Parameters[i].Name &&
_mesa_strncmp(paramList->Parameters[i].Name, name, nameLen) == 0
&& _mesa_strlen(paramList->Parameters[i].Name) == (size_t)nameLen)
return paramList->ParameterValues[i];
}
}
return NULL;
}
/**
* Lookup a parameter index by name in the given parameter list.
* \return index of parameter in the list.
*/
GLint
_mesa_lookup_parameter_index(struct gl_program_parameter_list *paramList,
GLsizei nameLen, const char *name)
{
GLint i;
if (!paramList)
return -1;
if (nameLen == -1) {
/* name is null-terminated */
for (i = 0; i < (GLint) paramList->NumParameters; i++) {
if (paramList->Parameters[i].Name &&
_mesa_strcmp(paramList->Parameters[i].Name, name) == 0)
return i;
}
}
else {
/* name is not null-terminated, use nameLen */
for (i = 0; i < (GLint) paramList->NumParameters; i++) {
if (paramList->Parameters[i].Name &&
_mesa_strncmp(paramList->Parameters[i].Name, name, nameLen) == 0
&& _mesa_strlen(paramList->Parameters[i].Name) == (size_t)nameLen)
return i;
}
}
return -1;
}
/**
* Use the list of tokens in the state[] array to find global GL state
* and return it in <value>. Usually, four values are returned in <value>
* but matrix queries may return as many as 16 values.
* This function is used for ARB vertex/fragment programs.
* The program parser will produce the state[] values.
*/
static void
_mesa_fetch_state(GLcontext *ctx, const enum state_index state[],
GLfloat *value)
{
switch (state[0]) {
case STATE_MATERIAL:
{
/* state[1] is either 0=front or 1=back side */
const GLuint face = (GLuint) state[1];
/* state[2] is the material attribute */
switch (state[2]) {
case STATE_AMBIENT:
if (face == 0)
COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT]);
else
COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_AMBIENT]);
return;
case STATE_DIFFUSE:
if (face == 0)
COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE]);
else
COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE]);
return;
case STATE_SPECULAR:
if (face == 0)
COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SPECULAR]);
else
COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_SPECULAR]);
return;
case STATE_EMISSION:
if (face == 0)
COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_EMISSION]);
else
COPY_4V(value, ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_EMISSION]);
return;
case STATE_SHININESS:
if (face == 0)
value[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SHININESS][0];
else
value[0] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_SHININESS][0];
value[1] = 0.0F;
value[2] = 0.0F;
value[3] = 1.0F;
return;
default:
_mesa_problem(ctx, "Invalid material state in fetch_state");
return;
}
}
case STATE_LIGHT:
{
/* state[1] is the light number */
const GLuint ln = (GLuint) state[1];
/* state[2] is the light attribute */
switch (state[2]) {
case STATE_AMBIENT:
COPY_4V(value, ctx->Light.Light[ln].Ambient);
return;
case STATE_DIFFUSE:
COPY_4V(value, ctx->Light.Light[ln].Diffuse);
return;
case STATE_SPECULAR:
COPY_4V(value, ctx->Light.Light[ln].Specular);
return;
case STATE_POSITION:
COPY_4V(value, ctx->Light.Light[ln].EyePosition);
return;
case STATE_ATTENUATION:
value[0] = ctx->Light.Light[ln].ConstantAttenuation;
value[1] = ctx->Light.Light[ln].LinearAttenuation;
value[2] = ctx->Light.Light[ln].QuadraticAttenuation;
value[3] = ctx->Light.Light[ln].SpotExponent;
return;
case STATE_SPOT_DIRECTION:
COPY_3V(value, ctx->Light.Light[ln].EyeDirection);
value[3] = ctx->Light.Light[ln]._CosCutoff;
return;
case STATE_HALF:
{
GLfloat eye_z[] = {0, 0, 1};
/* Compute infinite half angle vector:
* half-vector = light_position + (0, 0, 1)
* and then normalize. w = 0
*
* light.EyePosition.w should be 0 for infinite lights.
*/
ADD_3V(value, eye_z, ctx->Light.Light[ln].EyePosition);
NORMALIZE_3FV(value);
value[3] = 0;
}
return;
case STATE_POSITION_NORMALIZED:
COPY_4V(value, ctx->Light.Light[ln].EyePosition);
NORMALIZE_3FV( value );
return;
default:
_mesa_problem(ctx, "Invalid light state in fetch_state");
return;
}
}
case STATE_LIGHTMODEL_AMBIENT:
COPY_4V(value, ctx->Light.Model.Ambient);
return;
case STATE_LIGHTMODEL_SCENECOLOR:
if (state[1] == 0) {
/* front */
GLint i;
for (i = 0; i < 3; i++) {
value[i] = ctx->Light.Model.Ambient[i]
* ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT][i]
+ ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_EMISSION][i];
}
value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE][3];
}
else {
/* back */
GLint i;
for (i = 0; i < 3; i++) {
value[i] = ctx->Light.Model.Ambient[i]
* ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_AMBIENT][i]
+ ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_EMISSION][i];
}
value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_BACK_DIFFUSE][3];
}
return;
case STATE_LIGHTPROD:
{
const GLuint ln = (GLuint) state[1];
const GLuint face = (GLuint) state[2];
GLint i;
ASSERT(face == 0 || face == 1);
switch (state[3]) {
case STATE_AMBIENT:
for (i = 0; i < 3; i++) {
value[i] = ctx->Light.Light[ln].Ambient[i] *
ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT+face][i];
}
/* [3] = material alpha */
value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][3];
return;
case STATE_DIFFUSE:
for (i = 0; i < 3; i++) {
value[i] = ctx->Light.Light[ln].Diffuse[i] *
ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][i];
}
/* [3] = material alpha */
value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][3];
return;
case STATE_SPECULAR:
for (i = 0; i < 3; i++) {
value[i] = ctx->Light.Light[ln].Specular[i] *
ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SPECULAR+face][i];
}
/* [3] = material alpha */
value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_DIFFUSE+face][3];
return;
default:
_mesa_problem(ctx, "Invalid lightprod state in fetch_state");
return;
}
}
case STATE_TEXGEN:
{
/* state[1] is the texture unit */
const GLuint unit = (GLuint) state[1];
/* state[2] is the texgen attribute */
switch (state[2]) {
case STATE_TEXGEN_EYE_S:
COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneS);
return;
case STATE_TEXGEN_EYE_T:
COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneT);
return;
case STATE_TEXGEN_EYE_R:
COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneR);
return;
case STATE_TEXGEN_EYE_Q:
COPY_4V(value, ctx->Texture.Unit[unit].EyePlaneQ);
return;
case STATE_TEXGEN_OBJECT_S:
COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneS);
return;
case STATE_TEXGEN_OBJECT_T:
COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneT);
return;
case STATE_TEXGEN_OBJECT_R:
COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneR);
return;
case STATE_TEXGEN_OBJECT_Q:
COPY_4V(value, ctx->Texture.Unit[unit].ObjectPlaneQ);
return;
default:
_mesa_problem(ctx, "Invalid texgen state in fetch_state");
return;
}
}
case STATE_TEXENV_COLOR:
{
/* state[1] is the texture unit */
const GLuint unit = (GLuint) state[1];
COPY_4V(value, ctx->Texture.Unit[unit].EnvColor);
}
return;
case STATE_FOG_COLOR:
COPY_4V(value, ctx->Fog.Color);
return;
case STATE_FOG_PARAMS:
value[0] = ctx->Fog.Density;
value[1] = ctx->Fog.Start;
value[2] = ctx->Fog.End;
value[3] = 1.0F / (ctx->Fog.End - ctx->Fog.Start);
return;
case STATE_CLIPPLANE:
{
const GLuint plane = (GLuint) state[1];
COPY_4V(value, ctx->Transform.EyeUserPlane[plane]);
}
return;
case STATE_POINT_SIZE:
value[0] = ctx->Point.Size;
value[1] = ctx->Point.MinSize;
value[2] = ctx->Point.MaxSize;
value[3] = ctx->Point.Threshold;
return;
case STATE_POINT_ATTENUATION:
value[0] = ctx->Point.Params[0];
value[1] = ctx->Point.Params[1];
value[2] = ctx->Point.Params[2];
value[3] = 1.0F;
return;
case STATE_MATRIX:
{
/* state[1] = modelview, projection, texture, etc. */
/* state[2] = which texture matrix or program matrix */
/* state[3] = first column to fetch */
/* state[4] = last column to fetch */
/* state[5] = transpose, inverse or invtrans */
const GLmatrix *matrix;
const enum state_index mat = state[1];
const GLuint index = (GLuint) state[2];
const GLuint first = (GLuint) state[3];
const GLuint last = (GLuint) state[4];
const enum state_index modifier = state[5];
const GLfloat *m;
GLuint row, i;
if (mat == STATE_MODELVIEW) {
matrix = ctx->ModelviewMatrixStack.Top;
}
else if (mat == STATE_PROJECTION) {
matrix = ctx->ProjectionMatrixStack.Top;
}
else if (mat == STATE_MVP) {
matrix = &ctx->_ModelProjectMatrix;
}
else if (mat == STATE_TEXTURE) {
matrix = ctx->TextureMatrixStack[index].Top;
}
else if (mat == STATE_PROGRAM) {
matrix = ctx->ProgramMatrixStack[index].Top;
}
else {
_mesa_problem(ctx, "Bad matrix name in _mesa_fetch_state()");
return;
}
if (modifier == STATE_MATRIX_INVERSE ||
modifier == STATE_MATRIX_INVTRANS) {
/* Be sure inverse is up to date:
*/
_math_matrix_alloc_inv( (GLmatrix *) matrix );
_math_matrix_analyse( (GLmatrix*) matrix );
m = matrix->inv;
}
else {
m = matrix->m;
}
if (modifier == STATE_MATRIX_TRANSPOSE ||
modifier == STATE_MATRIX_INVTRANS) {
for (i = 0, row = first; row <= last; row++) {
value[i++] = m[row * 4 + 0];
value[i++] = m[row * 4 + 1];
value[i++] = m[row * 4 + 2];
value[i++] = m[row * 4 + 3];
}
}
else {
for (i = 0, row = first; row <= last; row++) {
value[i++] = m[row + 0];
value[i++] = m[row + 4];
value[i++] = m[row + 8];
value[i++] = m[row + 12];
}
}
}
return;
case STATE_DEPTH_RANGE:
value[0] = ctx->Viewport.Near; /* near */
value[1] = ctx->Viewport.Far; /* far */
value[2] = ctx->Viewport.Far - ctx->Viewport.Near; /* far - near */
value[3] = 0;
return;
case STATE_FRAGMENT_PROGRAM:
{
/* state[1] = {STATE_ENV, STATE_LOCAL} */
/* state[2] = parameter index */
const int idx = (int) state[2];
switch (state[1]) {
case STATE_ENV:
COPY_4V(value, ctx->FragmentProgram.Parameters[idx]);
break;
case STATE_LOCAL:
COPY_4V(value, ctx->FragmentProgram.Current->Base.LocalParams[idx]);
break;
default:
_mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
return;
}
}
return;
case STATE_VERTEX_PROGRAM:
{
/* state[1] = {STATE_ENV, STATE_LOCAL} */
/* state[2] = parameter index */
const int idx = (int) state[2];
switch (state[1]) {
case STATE_ENV:
COPY_4V(value, ctx->VertexProgram.Parameters[idx]);
break;
case STATE_LOCAL:
COPY_4V(value, ctx->VertexProgram.Current->Base.LocalParams[idx]);
break;
default:
_mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
return;
}
}
return;
case STATE_INTERNAL:
{
switch (state[1]) {
case STATE_NORMAL_SCALE:
ASSIGN_4V(value, ctx->_ModelViewInvScale, 0, 0, 1);
break;
default:
_mesa_problem(ctx, "Bad state switch in _mesa_fetch_state()");
return;
}
}
return;
default:
_mesa_problem(ctx, "Invalid state in _mesa_fetch_state");
return;
}
}
/**
* Return a bit mask of the Mesa state flags under which a parameter's
* value might change.
*/
static GLuint make_state_flags(const GLint state[])
{
switch (state[0]) {
case STATE_MATERIAL:
case STATE_LIGHT:
case STATE_LIGHTMODEL_AMBIENT:
case STATE_LIGHTMODEL_SCENECOLOR:
case STATE_LIGHTPROD:
return _NEW_LIGHT;
case STATE_TEXGEN:
case STATE_TEXENV_COLOR:
return _NEW_TEXTURE;
case STATE_FOG_COLOR:
case STATE_FOG_PARAMS:
return _NEW_FOG;
case STATE_CLIPPLANE:
return _NEW_TRANSFORM;
case STATE_POINT_SIZE:
case STATE_POINT_ATTENUATION:
return _NEW_POINT;
case STATE_MATRIX:
switch (state[1]) {
case STATE_MODELVIEW:
return _NEW_MODELVIEW;
case STATE_PROJECTION:
return _NEW_PROJECTION;
case STATE_MVP:
return _NEW_MODELVIEW | _NEW_PROJECTION;
case STATE_TEXTURE:
return _NEW_TEXTURE_MATRIX;
case STATE_PROGRAM:
return _NEW_TRACK_MATRIX;
default:
_mesa_problem(NULL, "unexpected matrix in make_state_flags()");
return 0;
}
case STATE_DEPTH_RANGE:
return _NEW_VIEWPORT;
case STATE_FRAGMENT_PROGRAM:
case STATE_VERTEX_PROGRAM:
return _NEW_PROGRAM;
case STATE_INTERNAL:
switch (state[1]) {
case STATE_NORMAL_SCALE:
return _NEW_MODELVIEW;
default:
_mesa_problem(NULL, "unexpected int. state in make_state_flags()");
return 0;
}
default:
_mesa_problem(NULL, "unexpected state[0] in make_state_flags()");
return 0;
}
}
static void
append(char *dst, const char *src)
{
while (*dst)
dst++;
while (*src)
*dst++ = *src++;
*dst = 0;
}
static void
append_token(char *dst, enum state_index k)
{
switch (k) {
case STATE_MATERIAL:
append(dst, "material.");
break;
case STATE_LIGHT:
append(dst, "light");
break;
case STATE_LIGHTMODEL_AMBIENT:
append(dst, "lightmodel.ambient");
break;
case STATE_LIGHTMODEL_SCENECOLOR:
break;
case STATE_LIGHTPROD:
append(dst, "lightprod");
break;
case STATE_TEXGEN:
append(dst, "texgen");
break;
case STATE_FOG_COLOR:
append(dst, "fog.color");
break;
case STATE_FOG_PARAMS:
append(dst, "fog.params");
break;
case STATE_CLIPPLANE:
append(dst, "clip");
break;
case STATE_POINT_SIZE:
append(dst, "point.size");
break;
case STATE_POINT_ATTENUATION:
append(dst, "point.attenuation");
break;
case STATE_MATRIX:
append(dst, "matrix.");
break;
case STATE_MODELVIEW:
append(dst, "modelview");
break;
case STATE_PROJECTION:
append(dst, "projection");
break;
case STATE_MVP:
append(dst, "mvp");
break;
case STATE_TEXTURE:
append(dst, "texture");
break;
case STATE_PROGRAM:
append(dst, "program");
break;
case STATE_MATRIX_INVERSE:
append(dst, ".inverse");
break;
case STATE_MATRIX_TRANSPOSE:
append(dst, ".transpose");
break;
case STATE_MATRIX_INVTRANS:
append(dst, ".invtrans");
break;
case STATE_AMBIENT:
append(dst, "ambient");
break;
case STATE_DIFFUSE:
append(dst, "diffuse");
break;
case STATE_SPECULAR:
append(dst, "specular");
break;
case STATE_EMISSION:
append(dst, "emission");
break;
case STATE_SHININESS:
append(dst, "shininess");
break;
case STATE_HALF:
append(dst, "half");
break;
case STATE_POSITION:
append(dst, ".position");
break;
case STATE_ATTENUATION:
append(dst, ".attenuation");
break;
case STATE_SPOT_DIRECTION:
append(dst, ".spot.direction");
break;
case STATE_TEXGEN_EYE_S:
append(dst, "eye.s");
break;
case STATE_TEXGEN_EYE_T:
append(dst, "eye.t");
break;
case STATE_TEXGEN_EYE_R:
append(dst, "eye.r");
break;
case STATE_TEXGEN_EYE_Q:
append(dst, "eye.q");
break;
case STATE_TEXGEN_OBJECT_S:
append(dst, "object.s");
break;
case STATE_TEXGEN_OBJECT_T:
append(dst, "object.t");
break;
case STATE_TEXGEN_OBJECT_R:
append(dst, "object.r");
break;
case STATE_TEXGEN_OBJECT_Q:
append(dst, "object.q");
break;
case STATE_TEXENV_COLOR:
append(dst, "texenv");
break;
case STATE_DEPTH_RANGE:
append(dst, "depth.range");
break;
case STATE_VERTEX_PROGRAM:
case STATE_FRAGMENT_PROGRAM:
break;
case STATE_ENV:
append(dst, "env");
break;
case STATE_LOCAL:
append(dst, "local");
break;
case STATE_INTERNAL:
case STATE_NORMAL_SCALE:
case STATE_POSITION_NORMALIZED:
append(dst, "(internal)");
break;
default:
;
}
}
static void
append_face(char *dst, GLint face)
{
if (face == 0)
append(dst, "front.");
else
append(dst, "back.");
}
static void
append_index(char *dst, GLint index)
{
char s[20];
_mesa_sprintf(s, "[%d].", index);
append(dst, s);
}
/**
* Make a string from the given state vector.
* For example, return "state.matrix.texture[2].inverse".
* Use _mesa_free() to deallocate the string.
*/
static const char *
make_state_string(const GLint state[6])
{
char str[1000] = "";
char tmp[30];
append(str, "state.");
append_token(str, (enum state_index) state[0]);
switch (state[0]) {
case STATE_MATERIAL:
append_face(str, state[1]);
append_token(str, (enum state_index) state[2]);
break;
case STATE_LIGHT:
append(str, "light");
append_index(str, state[1]); /* light number [i]. */
append_token(str, (enum state_index) state[2]); /* coefficients */
break;
case STATE_LIGHTMODEL_AMBIENT:
append(str, "lightmodel.ambient");
break;
case STATE_LIGHTMODEL_SCENECOLOR:
if (state[1] == 0) {
append(str, "lightmodel.front.scenecolor");
}
else {
append(str, "lightmodel.back.scenecolor");
}
break;
case STATE_LIGHTPROD:
append_index(str, state[1]); /* light number [i]. */
append_face(str, state[2]);
append_token(str, (enum state_index) state[3]);
break;
case STATE_TEXGEN:
append_index(str, state[1]); /* tex unit [i] */
append_token(str, (enum state_index) state[2]); /* plane coef */
break;
case STATE_TEXENV_COLOR:
append_index(str, state[1]); /* tex unit [i] */
append(str, "color");
break;
case STATE_FOG_COLOR:
case STATE_FOG_PARAMS:
break;
case STATE_CLIPPLANE:
append_index(str, state[1]); /* plane [i] */
append(str, "plane");
break;
case STATE_POINT_SIZE:
case STATE_POINT_ATTENUATION:
break;
case STATE_MATRIX:
{
/* state[1] = modelview, projection, texture, etc. */
/* state[2] = which texture matrix or program matrix */
/* state[3] = first column to fetch */
/* state[4] = last column to fetch */
/* state[5] = transpose, inverse or invtrans */
const enum state_index mat = (enum state_index) state[1];
const GLuint index = (GLuint) state[2];
const GLuint first = (GLuint) state[3];
const GLuint last = (GLuint) state[4];
const enum state_index modifier = (enum state_index) state[5];
append_token(str, mat);
if (index)
append_index(str, index);
if (modifier)
append_token(str, modifier);
if (first == last)
_mesa_sprintf(tmp, ".row[%d]", first);
else
_mesa_sprintf(tmp, ".row[%d..%d]", first, last);
append(str, tmp);
}
break;
case STATE_DEPTH_RANGE:
break;
case STATE_FRAGMENT_PROGRAM:
case STATE_VERTEX_PROGRAM:
/* state[1] = {STATE_ENV, STATE_LOCAL} */
/* state[2] = parameter index */
append_token(str, (enum state_index) state[1]);
append_index(str, state[2]);
break;
case STATE_INTERNAL:
break;
default:
_mesa_problem(NULL, "Invalid state in maka_state_string");
break;
}
return _mesa_strdup(str);
}
/**
* Loop over all the parameters in a parameter list. If the parameter
* is a GL state reference, look up the current value of that state
* variable and put it into the parameter's Value[4] array.
* This would be called at glBegin time when using a fragment program.
*/
void
_mesa_load_state_parameters(GLcontext *ctx,
struct gl_program_parameter_list *paramList)
{
GLuint i;
if (!paramList)
return;
for (i = 0; i < paramList->NumParameters; i++) {
if (paramList->Parameters[i].Type == PROGRAM_STATE_VAR) {
_mesa_fetch_state(ctx,
paramList->Parameters[i].StateIndexes,
paramList->ParameterValues[i]);
}
}
}
/**
* Initialize program instruction fields to defaults.
*/
void
_mesa_init_instruction(struct prog_instruction *inst)
{
_mesa_bzero(inst, sizeof(struct prog_instruction));
inst->SrcReg[0].File = PROGRAM_UNDEFINED;
inst->SrcReg[0].Swizzle = SWIZZLE_NOOP;
inst->SrcReg[1].File = PROGRAM_UNDEFINED;
inst->SrcReg[1].Swizzle = SWIZZLE_NOOP;
inst->SrcReg[2].File = PROGRAM_UNDEFINED;
inst->SrcReg[2].Swizzle = SWIZZLE_NOOP;
inst->DstReg.File = PROGRAM_UNDEFINED;
inst->DstReg.WriteMask = WRITEMASK_XYZW;
inst->DstReg.CondMask = COND_TR;
inst->DstReg.CondSwizzle = SWIZZLE_NOOP;
inst->SaturateMode = SATURATE_OFF;
inst->Precision = FLOAT32;
}
/**
* Allocate an array of program instructions.
* \param numInst number of instructions
* \return pointer to instruction memory
*/
struct prog_instruction *
_mesa_alloc_instructions(GLuint numInst)
{
return (struct prog_instruction *)
_mesa_calloc(numInst * sizeof(struct prog_instruction));
}
/**
* Reallocate memory storing an array of program instructions.
* This is used when we need to append additional instructions onto an
* program.
* \param oldInst pointer to first of old/src instructions
* \param numOldInst number of instructions at <oldInst>
* \param numNewInst desired size of new instruction array.
* \return pointer to start of new instruction array.
*/
struct prog_instruction *
_mesa_realloc_instructions(struct prog_instruction *oldInst,
GLuint numOldInst, GLuint numNewInst)
{
struct prog_instruction *newInst;
newInst = (struct prog_instruction *)
_mesa_realloc(oldInst,
numOldInst * sizeof(struct prog_instruction),
numNewInst * sizeof(struct prog_instruction));
return newInst;
}
/**
* Basic info about each instruction
*/
struct instruction_info
{
enum prog_opcode Opcode;
const char *Name;
GLuint NumSrcRegs;
};
/**
* Instruction info
* \note Opcode should equal array index!
*/
static const struct instruction_info InstInfo[MAX_OPCODE] = {
{ OPCODE_ABS, "ABS", 1 },
{ OPCODE_ADD, "ADD", 2 },
{ OPCODE_ARA, "ARA", 1 },
{ OPCODE_ARL, "ARL", 1 },
{ OPCODE_ARL_NV, "ARL", 1 },
{ OPCODE_ARR, "ARL", 1 },
{ OPCODE_BRA, "BRA", 1 },
{ OPCODE_CAL, "CAL", 1 },
{ OPCODE_CMP, "CMP", 3 },
{ OPCODE_COS, "COS", 1 },
{ OPCODE_DDX, "DDX", 1 },
{ OPCODE_DDY, "DDY", 1 },
{ OPCODE_DP3, "DP3", 2 },
{ OPCODE_DP4, "DP4", 2 },
{ OPCODE_DPH, "DPH", 2 },
{ OPCODE_DST, "DST", 2 },
{ OPCODE_END, "END", 0 },
{ OPCODE_EX2, "EX2", 1 },
{ OPCODE_EXP, "EXP", 1 },
{ OPCODE_FLR, "FLR", 1 },
{ OPCODE_FRC, "FRC", 1 },
{ OPCODE_KIL, "KIL", 1 },
{ OPCODE_KIL_NV, "KIL", 0 },
{ OPCODE_LG2, "LG2", 1 },
{ OPCODE_LIT, "LIT", 1 },
{ OPCODE_LOG, "LOG", 1 },
{ OPCODE_LRP, "LRP", 3 },
{ OPCODE_MAD, "MAD", 3 },
{ OPCODE_MAX, "MAX", 2 },
{ OPCODE_MIN, "MIN", 2 },
{ OPCODE_MOV, "MOV", 1 },
{ OPCODE_MUL, "MUL", 2 },
{ OPCODE_PK2H, "PK2H", 1 },
{ OPCODE_PK2US, "PK2US", 1 },
{ OPCODE_PK4B, "PK4B", 1 },
{ OPCODE_PK4UB, "PK4UB", 1 },
{ OPCODE_POW, "POW", 2 },
{ OPCODE_POPA, "POPA", 0 },
{ OPCODE_PRINT, "PRINT", 1 },
{ OPCODE_PUSHA, "PUSHA", 0 },
{ OPCODE_RCC, "RCC", 1 },
{ OPCODE_RCP, "RCP", 1 },
{ OPCODE_RET, "RET", 1 },
{ OPCODE_RFL, "RFL", 1 },
{ OPCODE_RSQ, "RSQ", 1 },
{ OPCODE_SCS, "SCS", 1 },
{ OPCODE_SEQ, "SEQ", 2 },
{ OPCODE_SFL, "SFL", 0 },
{ OPCODE_SGE, "SGE", 2 },
{ OPCODE_SGT, "SGT", 2 },
{ OPCODE_SIN, "SIN", 1 },
{ OPCODE_SLE, "SLE", 2 },
{ OPCODE_SLT, "SLT", 2 },
{ OPCODE_SNE, "SNE", 2 },
{ OPCODE_SSG, "SSG", 1 },
{ OPCODE_STR, "STR", 0 },
{ OPCODE_SUB, "SUB", 2 },
{ OPCODE_SWZ, "SWZ", 1 },
{ OPCODE_TEX, "TEX", 1 },
{ OPCODE_TXB, "TXB", 1 },
{ OPCODE_TXD, "TXD", 3 },
{ OPCODE_TXL, "TXL", 1 },
{ OPCODE_TXP, "TXP", 1 },
{ OPCODE_TXP_NV, "TXP", 1 },
{ OPCODE_UP2H, "UP2H", 1 },
{ OPCODE_UP2US, "UP2US", 1 },
{ OPCODE_UP4B, "UP4B", 1 },
{ OPCODE_UP4UB, "UP4UB", 1 },
{ OPCODE_X2D, "X2D", 3 },
{ OPCODE_XPD, "XPD", 2 }
};
/**
* Return the number of src registers for the given instruction/opcode.
*/
GLuint
_mesa_num_inst_src_regs(enum prog_opcode opcode)
{
GLuint i;
#ifdef DEBUG
for (i = 0; i < MAX_OPCODE; i++) {
ASSERT(i == InstInfo[i].Opcode);
}
#endif
for (i = 0; i < MAX_OPCODE; i++) {
if (InstInfo[i].Opcode == opcode) {
return InstInfo[i].NumSrcRegs;
}
}
_mesa_problem(NULL, "invalid opcode in _mesa_num_inst_src_regs");
return 0;
}
/**
* Return string name for given program opcode.
*/
const char *
_mesa_opcode_string(enum prog_opcode opcode)
{
ASSERT(opcode < MAX_OPCODE);
return InstInfo[opcode].Name;
}
/**
* Return string name for given program/register file.
*/
static const char *
program_file_string(enum register_file f)
{
switch (f) {
case PROGRAM_TEMPORARY:
return "TEMP";
case PROGRAM_LOCAL_PARAM:
return "LOCAL";
case PROGRAM_ENV_PARAM:
return "ENV";
case PROGRAM_STATE_VAR:
return "STATE";
case PROGRAM_INPUT:
return "INPUT";
case PROGRAM_OUTPUT:
return "OUTPUT";
case PROGRAM_NAMED_PARAM:
return "NAMED";
case PROGRAM_CONSTANT:
return "CONST";
case PROGRAM_WRITE_ONLY:
return "WRITE_ONLY";
case PROGRAM_ADDRESS:
return "ADDR";
default:
return "!unkown!";
}
}
/**
* Return a string representation of the given swizzle word.
* If extended is true, use extended (comma-separated) format.
*/
static const char *
swizzle_string(GLuint swizzle, GLuint negateBase, GLboolean extended)
{
static const char swz[] = "xyzw01";
static char s[20];
GLuint i = 0;
if (!extended && swizzle == SWIZZLE_NOOP && negateBase == 0)
return ""; /* no swizzle/negation */
if (!extended)
s[i++] = '.';
if (negateBase & 0x1)
s[i++] = '-';
s[i++] = swz[GET_SWZ(swizzle, 0)];
if (extended) {
s[i++] = ',';
}
if (negateBase & 0x2)
s[i++] = '-';
s[i++] = swz[GET_SWZ(swizzle, 1)];
if (extended) {
s[i++] = ',';
}
if (negateBase & 0x4)
s[i++] = '-';
s[i++] = swz[GET_SWZ(swizzle, 2)];
if (extended) {
s[i++] = ',';
}
if (negateBase & 0x8)
s[i++] = '-';
s[i++] = swz[GET_SWZ(swizzle, 3)];
s[i] = 0;
return s;
}
static const char *
writemask_string(GLuint writeMask)
{
static char s[10];
GLuint i = 0;
if (writeMask == WRITEMASK_XYZW)
return "";
s[i++] = '.';
if (writeMask & WRITEMASK_X)
s[i++] = 'x';
if (writeMask & WRITEMASK_Y)
s[i++] = 'y';
if (writeMask & WRITEMASK_Z)
s[i++] = 'z';
if (writeMask & WRITEMASK_W)
s[i++] = 'w';
s[i] = 0;
return s;
}
static void
print_dst_reg(const struct prog_dst_register *dstReg)
{
_mesa_printf(" %s[%d]%s",
program_file_string((enum register_file) dstReg->File),
dstReg->Index,
writemask_string(dstReg->WriteMask));
}
static void
print_src_reg(const struct prog_src_register *srcReg)
{
_mesa_printf("%s[%d]%s",
program_file_string((enum register_file) srcReg->File),
srcReg->Index,
swizzle_string(srcReg->Swizzle,
srcReg->NegateBase, GL_FALSE));
}
/**
* Print a single vertex/fragment program instruction.
*/
void
_mesa_print_instruction(const struct prog_instruction *inst)
{
switch (inst->Opcode) {
case OPCODE_PRINT:
_mesa_printf("PRINT '%s'", inst->Data);
if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) {
_mesa_printf(", ");
_mesa_printf("%s[%d]%s",
program_file_string((enum register_file) inst->SrcReg[0].File),
inst->SrcReg[0].Index,
swizzle_string(inst->SrcReg[0].Swizzle,
inst->SrcReg[0].NegateBase, GL_FALSE));
}
_mesa_printf(";\n");
break;
case OPCODE_SWZ:
_mesa_printf("SWZ");
if (inst->SaturateMode == SATURATE_ZERO_ONE)
_mesa_printf("_SAT");
print_dst_reg(&inst->DstReg);
_mesa_printf("%s[%d], %s;\n",
program_file_string((enum register_file) inst->SrcReg[0].File),
inst->SrcReg[0].Index,
swizzle_string(inst->SrcReg[0].Swizzle,
inst->SrcReg[0].NegateBase, GL_TRUE));
break;
case OPCODE_TEX:
case OPCODE_TXP:
case OPCODE_TXB:
_mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
if (inst->SaturateMode == SATURATE_ZERO_ONE)
_mesa_printf("_SAT");
_mesa_printf(" ");
print_dst_reg(&inst->DstReg);
_mesa_printf(", ");
print_src_reg(&inst->SrcReg[0]);
_mesa_printf(", texture[%d], ", inst->TexSrcUnit);
switch (inst->TexSrcTarget) {
case TEXTURE_1D_INDEX: _mesa_printf("1D"); break;
case TEXTURE_2D_INDEX: _mesa_printf("2D"); break;
case TEXTURE_3D_INDEX: _mesa_printf("3D"); break;
case TEXTURE_CUBE_INDEX: _mesa_printf("CUBE"); break;
case TEXTURE_RECT_INDEX: _mesa_printf("RECT"); break;
default:
;
}
_mesa_printf("\n");
break;
case OPCODE_ARL:
_mesa_printf("ARL addr.x, ");
print_src_reg(&inst->SrcReg[0]);
_mesa_printf(";\n");
break;
/* XXX may need for other special-case instructions */
default:
/* typical alu instruction */
{
const GLuint numRegs = _mesa_num_inst_src_regs(inst->Opcode);
GLuint j;
_mesa_printf("%s", _mesa_opcode_string(inst->Opcode));
/* frag prog only */
if (inst->SaturateMode == SATURATE_ZERO_ONE)
_mesa_printf("_SAT");
if (inst->DstReg.File != PROGRAM_UNDEFINED) {
_mesa_printf(" %s[%d]%s",
program_file_string((enum register_file) inst->DstReg.File),
inst->DstReg.Index,
writemask_string(inst->DstReg.WriteMask));
}
if (numRegs > 0)
_mesa_printf(", ");
for (j = 0; j < numRegs; j++) {
print_src_reg(inst->SrcReg + j);
if (j + 1 < numRegs)
_mesa_printf(", ");
}
_mesa_printf(";\n");
}
}
}
/**
* Print a vertx/fragment program to stdout.
* XXX this function could be greatly improved.
*/
void
_mesa_print_program(const struct gl_program *prog)
{
GLuint i;
for (i = 0; i < prog->NumInstructions; i++) {
_mesa_printf("%3d: ", i);
_mesa_print_instruction(prog->Instructions + i);
}
}
/**
* Print all of a program's parameters.
*/
void
_mesa_print_program_parameters(GLcontext *ctx, const struct gl_program *prog)
{
GLint i;
_mesa_printf("NumInstructions=%d\n", prog->NumInstructions);
_mesa_printf("NumTemporaries=%d\n", prog->NumTemporaries);
_mesa_printf("NumParameters=%d\n", prog->NumParameters);
_mesa_printf("NumAttributes=%d\n", prog->NumAttributes);
_mesa_printf("NumAddressRegs=%d\n", prog->NumAddressRegs);
_mesa_load_state_parameters(ctx, prog->Parameters);
#if 0
_mesa_printf("Local Params:\n");
for (i = 0; i < MAX_PROGRAM_LOCAL_PARAMS; i++){
const GLfloat *p = prog->LocalParams[i];
_mesa_printf("%2d: %f, %f, %f, %f\n", i, p[0], p[1], p[2], p[3]);
}
#endif
for (i = 0; i < prog->Parameters->NumParameters; i++){
struct gl_program_parameter *param = prog->Parameters->Parameters + i;
const GLfloat *v = prog->Parameters->ParameterValues[i];
_mesa_printf("param[%d] %s = {%.3f, %.3f, %.3f, %.3f};\n",
i, param->Name, v[0], v[1], v[2], v[3]);
}
}
/**
* Mixing ARB and NV vertex/fragment programs can be tricky.
* Note: GL_VERTEX_PROGRAM_ARB == GL_VERTEX_PROGRAM_NV
* but, GL_FRAGMENT_PROGRAM_ARB != GL_FRAGMENT_PROGRAM_NV
* The two different fragment program targets are supposed to be compatible
* to some extent (see GL_ARB_fragment_program spec).
* This function does the compatibility check.
*/
static GLboolean
compatible_program_targets(GLenum t1, GLenum t2)
{
if (t1 == t2)
return GL_TRUE;
if (t1 == GL_FRAGMENT_PROGRAM_ARB && t2 == GL_FRAGMENT_PROGRAM_NV)
return GL_TRUE;
if (t1 == GL_FRAGMENT_PROGRAM_NV && t2 == GL_FRAGMENT_PROGRAM_ARB)
return GL_TRUE;
return GL_FALSE;
}
/**********************************************************************/
/* API functions */
/**********************************************************************/
/**
* Bind a program (make it current)
* \note Called from the GL API dispatcher by both glBindProgramNV
* and glBindProgramARB.
*/
void GLAPIENTRY
_mesa_BindProgram(GLenum target, GLuint id)
{
struct gl_program *prog;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
FLUSH_VERTICES(ctx, _NEW_PROGRAM);
if ((target == GL_VERTEX_PROGRAM_ARB) && /* == GL_VERTEX_PROGRAM_NV */
(ctx->Extensions.NV_vertex_program ||
ctx->Extensions.ARB_vertex_program)) {
/*** Vertex program binding ***/
struct gl_vertex_program *curProg = ctx->VertexProgram.Current;
if (curProg->Base.Id == id) {
/* binding same program - no change */
return;
}
if (curProg->Base.Id != 0) {
/* decrement refcount on previously bound vertex program */
curProg->Base.RefCount--;
/* and delete if refcount goes below one */
if (curProg->Base.RefCount <= 0) {
/* the program ID was already removed from the hash table */
ctx->Driver.DeleteProgram(ctx, &(curProg->Base));
}
}
}
else if ((target == GL_FRAGMENT_PROGRAM_NV
&& ctx->Extensions.NV_fragment_program) ||
(target == GL_FRAGMENT_PROGRAM_ARB
&& ctx->Extensions.ARB_fragment_program)) {
/*** Fragment program binding ***/
struct gl_fragment_program *curProg = ctx->FragmentProgram.Current;
if (curProg->Base.Id == id) {
/* binding same program - no change */
return;
}
if (curProg->Base.Id != 0) {
/* decrement refcount on previously bound fragment program */
curProg->Base.RefCount--;
/* and delete if refcount goes below one */
if (curProg->Base.RefCount <= 0) {
/* the program ID was already removed from the hash table */
ctx->Driver.DeleteProgram(ctx, &(curProg->Base));
}
}
}
else {
_mesa_error(ctx, GL_INVALID_ENUM, "glBindProgramNV/ARB(target)");
return;
}
/* NOTE: binding to a non-existant program is not an error.
* That's supposed to be caught in glBegin.
*/
if (id == 0) {
/* Bind default program */
prog = NULL;
if (target == GL_VERTEX_PROGRAM_ARB) /* == GL_VERTEX_PROGRAM_NV */
prog = ctx->Shared->DefaultVertexProgram;
else
prog = ctx->Shared->DefaultFragmentProgram;
}
else {
/* Bind user program */
prog = _mesa_lookup_program(ctx, id);
if (!prog || prog == &_mesa_DummyProgram) {
/* allocate a new program now */
prog = ctx->Driver.NewProgram(ctx, target, id);
if (!prog) {
_mesa_error(ctx, GL_OUT_OF_MEMORY, "glBindProgramNV/ARB");
return;
}
_mesa_HashInsert(ctx->Shared->Programs, id, prog);
}
else if (!compatible_program_targets(prog->Target, target)) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glBindProgramNV/ARB(target mismatch)");
return;
}
}
/* bind now */
if (target == GL_VERTEX_PROGRAM_ARB) { /* == GL_VERTEX_PROGRAM_NV */
ctx->VertexProgram.Current = (struct gl_vertex_program *) prog;
}
else if (target == GL_FRAGMENT_PROGRAM_NV || target == GL_FRAGMENT_PROGRAM_ARB) {
ctx->FragmentProgram.Current = (struct gl_fragment_program *) prog;
}
/* Never null pointers */
ASSERT(ctx->VertexProgram.Current);
ASSERT(ctx->FragmentProgram.Current);
if (prog)
prog->RefCount++;
if (ctx->Driver.BindProgram)
ctx->Driver.BindProgram(ctx, target, prog);
}
/**
* Delete a list of programs.
* \note Not compiled into display lists.
* \note Called by both glDeleteProgramsNV and glDeleteProgramsARB.
*/
void GLAPIENTRY
_mesa_DeletePrograms(GLsizei n, const GLuint *ids)
{
GLint i;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
if (n < 0) {
_mesa_error( ctx, GL_INVALID_VALUE, "glDeleteProgramsNV" );
return;
}
for (i = 0; i < n; i++) {
if (ids[i] != 0) {
struct gl_program *prog = _mesa_lookup_program(ctx, ids[i]);
if (prog == &_mesa_DummyProgram) {
_mesa_HashRemove(ctx->Shared->Programs, ids[i]);
}
else if (prog) {
/* Unbind program if necessary */
if (prog->Target == GL_VERTEX_PROGRAM_ARB || /* == GL_VERTEX_PROGRAM_NV */
prog->Target == GL_VERTEX_STATE_PROGRAM_NV) {
if (ctx->VertexProgram.Current &&
ctx->VertexProgram.Current->Base.Id == ids[i]) {
/* unbind this currently bound program */
_mesa_BindProgram(prog->Target, 0);
}
}
else if (prog->Target == GL_FRAGMENT_PROGRAM_NV ||
prog->Target == GL_FRAGMENT_PROGRAM_ARB) {
if (ctx->FragmentProgram.Current &&
ctx->FragmentProgram.Current->Base.Id == ids[i]) {
/* unbind this currently bound program */
_mesa_BindProgram(prog->Target, 0);
}
}
else {
_mesa_problem(ctx, "bad target in glDeleteProgramsNV");
return;
}
/* The ID is immediately available for re-use now */
_mesa_HashRemove(ctx->Shared->Programs, ids[i]);
prog->RefCount--;
if (prog->RefCount <= 0) {
ctx->Driver.DeleteProgram(ctx, prog);
}
}
}
}
}
/**
* Generate a list of new program identifiers.
* \note Not compiled into display lists.
* \note Called by both glGenProgramsNV and glGenProgramsARB.
*/
void GLAPIENTRY
_mesa_GenPrograms(GLsizei n, GLuint *ids)
{
GLuint first;
GLuint i;
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END(ctx);
if (n < 0) {
_mesa_error(ctx, GL_INVALID_VALUE, "glGenPrograms");
return;
}
if (!ids)
return;
first = _mesa_HashFindFreeKeyBlock(ctx->Shared->Programs, n);
/* Insert pointer to dummy program as placeholder */
for (i = 0; i < (GLuint) n; i++) {
_mesa_HashInsert(ctx->Shared->Programs, first + i, &_mesa_DummyProgram);
}
/* Return the program names */
for (i = 0; i < (GLuint) n; i++) {
ids[i] = first + i;
}
}
/**
* Determine if id names a vertex or fragment program.
* \note Not compiled into display lists.
* \note Called from both glIsProgramNV and glIsProgramARB.
* \param id is the program identifier
* \return GL_TRUE if id is a program, else GL_FALSE.
*/
GLboolean GLAPIENTRY
_mesa_IsProgram(GLuint id)
{
GET_CURRENT_CONTEXT(ctx);
ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, GL_FALSE);
if (id == 0)
return GL_FALSE;
if (_mesa_lookup_program(ctx, id))
return GL_TRUE;
else
return GL_FALSE;
}
/**********************************************************************/
/* GL_MESA_program_debug extension */
/**********************************************************************/
/* XXX temporary */
GLAPI void GLAPIENTRY
glProgramCallbackMESA(GLenum target, GLprogramcallbackMESA callback,
GLvoid *data)
{
_mesa_ProgramCallbackMESA(target, callback, data);
}
void
_mesa_ProgramCallbackMESA(GLenum target, GLprogramcallbackMESA callback,
GLvoid *data)
{
GET_CURRENT_CONTEXT(ctx);
switch (target) {
case GL_FRAGMENT_PROGRAM_ARB:
if (!ctx->Extensions.ARB_fragment_program) {
_mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)");
return;
}
ctx->FragmentProgram.Callback = callback;
ctx->FragmentProgram.CallbackData = data;
break;
case GL_FRAGMENT_PROGRAM_NV:
if (!ctx->Extensions.NV_fragment_program) {
_mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)");
return;
}
ctx->FragmentProgram.Callback = callback;
ctx->FragmentProgram.CallbackData = data;
break;
case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */
if (!ctx->Extensions.ARB_vertex_program &&
!ctx->Extensions.NV_vertex_program) {
_mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)");
return;
}
ctx->VertexProgram.Callback = callback;
ctx->VertexProgram.CallbackData = data;
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM, "glProgramCallbackMESA(target)");
return;
}
}
/* XXX temporary */
GLAPI void GLAPIENTRY
glGetProgramRegisterfvMESA(GLenum target,
GLsizei len, const GLubyte *registerName,
GLfloat *v)
{
_mesa_GetProgramRegisterfvMESA(target, len, registerName, v);
}
void
_mesa_GetProgramRegisterfvMESA(GLenum target,
GLsizei len, const GLubyte *registerName,
GLfloat *v)
{
char reg[1000];
GET_CURRENT_CONTEXT(ctx);
/* We _should_ be inside glBegin/glEnd */
#if 0
if (ctx->Driver.CurrentExecPrimitive == PRIM_OUTSIDE_BEGIN_END) {
_mesa_error(ctx, GL_INVALID_OPERATION, "glGetProgramRegisterfvMESA");
return;
}
#endif
/* make null-terminated copy of registerName */
len = MIN2((unsigned int) len, sizeof(reg) - 1);
_mesa_memcpy(reg, registerName, len);
reg[len] = 0;
switch (target) {
case GL_VERTEX_PROGRAM_ARB: /* == GL_VERTEX_PROGRAM_NV */
if (!ctx->Extensions.ARB_vertex_program &&
!ctx->Extensions.NV_vertex_program) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetProgramRegisterfvMESA(target)");
return;
}
if (!ctx->VertexProgram._Enabled) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetProgramRegisterfvMESA");
return;
}
/* GL_NV_vertex_program */
if (reg[0] == 'R') {
/* Temp register */
GLint i = _mesa_atoi(reg + 1);
if (i >= (GLint)ctx->Const.VertexProgram.MaxTemps) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetProgramRegisterfvMESA(registerName)");
return;
}
COPY_4V(v, ctx->VertexProgram.Temporaries[i]);
}
else if (reg[0] == 'v' && reg[1] == '[') {
/* Vertex Input attribute */
GLuint i;
for (i = 0; i < ctx->Const.VertexProgram.MaxAttribs; i++) {
const char *name = _mesa_nv_vertex_input_register_name(i);
char number[10];
_mesa_sprintf(number, "%d", i);
if (_mesa_strncmp(reg + 2, name, 4) == 0 ||
_mesa_strncmp(reg + 2, number, _mesa_strlen(number)) == 0) {
COPY_4V(v, ctx->VertexProgram.Inputs[i]);
return;
}
}
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetProgramRegisterfvMESA(registerName)");
return;
}
else if (reg[0] == 'o' && reg[1] == '[') {
/* Vertex output attribute */
}
/* GL_ARB_vertex_program */
else if (_mesa_strncmp(reg, "vertex.", 7) == 0) {
}
else {
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetProgramRegisterfvMESA(registerName)");
return;
}
break;
case GL_FRAGMENT_PROGRAM_ARB:
if (!ctx->Extensions.ARB_fragment_program) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetProgramRegisterfvMESA(target)");
return;
}
if (!ctx->FragmentProgram._Enabled) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetProgramRegisterfvMESA");
return;
}
/* XXX to do */
break;
case GL_FRAGMENT_PROGRAM_NV:
if (!ctx->Extensions.NV_fragment_program) {
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetProgramRegisterfvMESA(target)");
return;
}
if (!ctx->FragmentProgram._Enabled) {
_mesa_error(ctx, GL_INVALID_OPERATION,
"glGetProgramRegisterfvMESA");
return;
}
if (reg[0] == 'R') {
/* Temp register */
GLint i = _mesa_atoi(reg + 1);
if (i >= (GLint)ctx->Const.FragmentProgram.MaxTemps) {
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetProgramRegisterfvMESA(registerName)");
return;
}
COPY_4V(v, ctx->FragmentProgram.Machine.Temporaries[i]);
}
else if (reg[0] == 'f' && reg[1] == '[') {
/* Fragment input attribute */
GLuint i;
for (i = 0; i < ctx->Const.FragmentProgram.MaxAttribs; i++) {
const char *name = _mesa_nv_fragment_input_register_name(i);
if (_mesa_strncmp(reg + 2, name, 4) == 0) {
COPY_4V(v, ctx->FragmentProgram.Machine.Inputs[i]);
return;
}
}
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetProgramRegisterfvMESA(registerName)");
return;
}
else if (_mesa_strcmp(reg, "o[COLR]") == 0) {
/* Fragment output color */
COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_RESULT_COLR]);
}
else if (_mesa_strcmp(reg, "o[COLH]") == 0) {
/* Fragment output color */
COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_RESULT_COLH]);
}
else if (_mesa_strcmp(reg, "o[DEPR]") == 0) {
/* Fragment output depth */
COPY_4V(v, ctx->FragmentProgram.Machine.Outputs[FRAG_RESULT_DEPR]);
}
else {
/* try user-defined identifiers */
const GLfloat *value = _mesa_lookup_parameter_value(
ctx->FragmentProgram.Current->Base.Parameters, -1, reg);
if (value) {
COPY_4V(v, value);
}
else {
_mesa_error(ctx, GL_INVALID_VALUE,
"glGetProgramRegisterfvMESA(registerName)");
return;
}
}
break;
default:
_mesa_error(ctx, GL_INVALID_ENUM,
"glGetProgramRegisterfvMESA(target)");
return;
}
}
Reference in New Issue View Git Blame Copy Permalink