/*
* Mesa 3-D graphics library
- * Version: 7.0
+ * Version: 7.1
*
* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
*
*/
-#include "glheader.h"
-#include "context.h"
-#include "hash.h"
-#include "imports.h"
-#include "macros.h"
-#include "mtypes.h"
+#include "main/glheader.h"
+#include "main/context.h"
+#include "main/hash.h"
+#include "main/imports.h"
+#include "main/macros.h"
+#include "main/mtypes.h"
#include "prog_statevars.h"
#include "prog_parameter.h"
-#include "nvvertparse.h"
/**
ADD_3V(value, p, eye_z);
NORMALIZE_3FV(value);
value[3] = 1.0;
- }
- 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");
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];
+ value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_AMBIENT+face][3];
return;
case STATE_DIFFUSE:
for (i = 0; i < 3; 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];
+ value[3] = ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SPECULAR+face][3];
return;
default:
_mesa_problem(ctx, "Invalid lightprod state in fetch_state");
}
}
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);
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);
+ value[3] = (ctx->Fog.End == ctx->Fog.Start)
+ ? 1.0f : (GLfloat)(1.0 / (ctx->Fog.End - ctx->Fog.Start));
return;
case STATE_CLIPPLANE:
{
case STATE_MVP_MATRIX:
case STATE_TEXTURE_MATRIX:
case STATE_PROGRAM_MATRIX:
+ case STATE_COLOR_MATRIX:
{
/* state[0] = modelview, projection, texture, etc. */
/* state[1] = which texture matrix or program matrix */
else if (mat == STATE_PROGRAM_MATRIX) {
matrix = ctx->ProgramMatrixStack[index].Top;
}
+ else if (mat == STATE_COLOR_MATRIX) {
+ matrix = ctx->ColorMatrixStack.Top;
+ }
else {
_mesa_problem(ctx, "Bad matrix name in _mesa_fetch_state()");
return;
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;
+ value[3] = 1.0;
return;
case STATE_FRAGMENT_PROGRAM:
{
}
}
return;
-
+
case STATE_VERTEX_PROGRAM:
{
/* state[1] = {STATE_ENV, STATE_LOCAL} */
case STATE_INTERNAL:
switch (state[1]) {
case STATE_NORMAL_SCALE:
- ASSIGN_4V(value, ctx->_ModelViewInvScale, 0, 0, 1);
+ ASSIGN_4V(value,
+ ctx->_ModelViewInvScale,
+ ctx->_ModelViewInvScale,
+ ctx->_ModelViewInvScale,
+ 1);
return;
case STATE_TEXRECT_SCALE:
{
= ctx->Texture.Unit[unit]._Current;
if (texObj) {
struct gl_texture_image *texImage = texObj->Image[0][0];
- ASSIGN_4V(value, 1.0 / texImage->Width,
- 1.0 / texImage->Height,
- 0.0, 1.0);
+ ASSIGN_4V(value, (GLfloat) (1.0 / texImage->Width),
+ (GLfloat)(1.0 / texImage->Height),
+ 0.0f, 1.0f);
}
}
return;
* exp: 2^-(density/ln(2) * fogcoord)
* exp2: 2^-((density/(ln(2)^2) * fogcoord)^2)
*/
- value[0] = -1.0F / (ctx->Fog.End - ctx->Fog.Start);
- value[1] = ctx->Fog.End / (ctx->Fog.End - ctx->Fog.Start);
- value[2] = ctx->Fog.Density * ONE_DIV_LN2;
- value[3] = ctx->Fog.Density * ONE_DIV_SQRT_LN2;
+ value[0] = (ctx->Fog.End == ctx->Fog.Start)
+ ? 1.0f : (GLfloat)(-1.0F / (ctx->Fog.End - ctx->Fog.Start));
+ value[1] = ctx->Fog.End * -value[0];
+ value[2] = (GLfloat)(ctx->Fog.Density * ONE_DIV_LN2);
+ value[3] = (GLfloat)(ctx->Fog.Density * ONE_DIV_SQRT_LN2);
return;
- case STATE_SPOT_DIR_NORMALIZED: {
+
+ case STATE_LIGHT_SPOT_DIR_NORMALIZED: {
/* here, state[2] is the light number */
/* pre-normalize spot dir */
const GLuint ln = (GLuint) state[2];
- COPY_3V(value, ctx->Light.Light[ln].EyeDirection);
- NORMALIZE_3FV(value);
+ COPY_3V(value, ctx->Light.Light[ln]._NormDirection);
value[3] = ctx->Light.Light[ln]._CosCutoff;
return;
}
+
+ case STATE_LIGHT_POSITION: {
+ const GLuint ln = (GLuint) state[2];
+ COPY_4V(value, ctx->Light.Light[ln]._Position);
+ return;
+ }
+
+ case STATE_LIGHT_POSITION_NORMALIZED: {
+ const GLuint ln = (GLuint) state[2];
+ COPY_4V(value, ctx->Light.Light[ln]._Position);
+ NORMALIZE_3FV( value );
+ return;
+ }
+
+ case STATE_LIGHT_HALF_VECTOR: {
+ const GLuint ln = (GLuint) state[2];
+ GLfloat p[3];
+ /* Compute infinite half angle vector:
+ * halfVector = normalize(normalize(lightPos) + (0, 0, 1))
+ * light.EyePosition.w should be 0 for infinite lights.
+ */
+ COPY_3V(p, ctx->Light.Light[ln]._Position);
+ NORMALIZE_3FV(p);
+ ADD_3V(value, p, ctx->_EyeZDir);
+ NORMALIZE_3FV(value);
+ value[3] = 1.0;
+ return;
+ }
+
+
+ case STATE_PT_SCALE:
+ value[0] = ctx->Pixel.RedScale;
+ value[1] = ctx->Pixel.GreenScale;
+ value[2] = ctx->Pixel.BlueScale;
+ value[3] = ctx->Pixel.AlphaScale;
+ break;
+ case STATE_PT_BIAS:
+ value[0] = ctx->Pixel.RedBias;
+ value[1] = ctx->Pixel.GreenBias;
+ value[2] = ctx->Pixel.BlueBias;
+ value[3] = ctx->Pixel.AlphaBias;
+ break;
+ case STATE_PCM_SCALE:
+ COPY_4V(value, ctx->Pixel.PostColorMatrixScale);
+ break;
+ case STATE_PCM_BIAS:
+ COPY_4V(value, ctx->Pixel.PostColorMatrixBias);
+ break;
+ case STATE_SHADOW_AMBIENT:
+ {
+ const int unit = (int) state[2];
+ const struct gl_texture_object *texObj
+ = ctx->Texture.Unit[unit]._Current;
+ if (texObj) {
+ value[0] = texObj->ShadowAmbient;
+ value[1] = texObj->ShadowAmbient;
+ value[2] = texObj->ShadowAmbient;
+ value[3] = texObj->ShadowAmbient;
+ }
+ }
+ return;
+
default:
/* unknown state indexes are silently ignored
* should be handled by the driver.
return _NEW_TEXTURE_MATRIX;
case STATE_PROGRAM_MATRIX:
return _NEW_TRACK_MATRIX;
+ case STATE_COLOR_MATRIX:
+ return _NEW_COLOR_MATRIX;
case STATE_DEPTH_RANGE:
return _NEW_VIEWPORT;
case STATE_INTERNAL:
switch (state[1]) {
case STATE_TEXRECT_SCALE:
+ case STATE_SHADOW_AMBIENT:
return _NEW_TEXTURE;
case STATE_FOG_PARAMS_OPTIMIZED:
return _NEW_FOG;
case STATE_PROGRAM_MATRIX:
append(dst, "matrix.program");
break;
+ case STATE_COLOR_MATRIX:
+ append(dst, "matrix.color");
+ break;
case STATE_MATRIX_INVERSE:
append(dst, ".inverse");
break;
append(dst, "normalScale");
break;
case STATE_INTERNAL:
- case STATE_POSITION_NORMALIZED:
append(dst, "(internal)");
break;
+ case STATE_PT_SCALE:
+ append(dst, "PTscale");
+ break;
+ case STATE_PT_BIAS:
+ append(dst, "PTbias");
+ break;
+ case STATE_PCM_SCALE:
+ append(dst, "PCMscale");
+ break;
+ case STATE_PCM_BIAS:
+ append(dst, "PCMbias");
+ break;
+ case STATE_SHADOW_AMBIENT:
+ append(dst, "ShadowAmbient");
+ break;
default:
;
}
case STATE_MVP_MATRIX:
case STATE_TEXTURE_MATRIX:
case STATE_PROGRAM_MATRIX:
+ case STATE_COLOR_MATRIX:
{
/* state[0] = modelview, projection, texture, etc. */
/* state[1] = which texture matrix or program matrix */
if (!paramList)
return;
+ /*assert(ctx->Driver.NeedFlush == 0);*/
+
for (i = 0; i < paramList->NumParameters; i++) {
if (paramList->Parameters[i].Type == PROGRAM_STATE_VAR) {
- _mesa_fetch_state(ctx,
+ _mesa_fetch_state(ctx,
(gl_state_index *) paramList->Parameters[i].StateIndexes,
paramList->ParameterValues[i]);
}
}
}
+
+/**
+ * Copy the 16 elements of a matrix into four consecutive program
+ * registers starting at 'pos'.
+ */
+static void
+load_matrix(GLfloat registers[][4], GLuint pos, const GLfloat mat[16])
+{
+ GLuint i;
+ for (i = 0; i < 4; i++) {
+ registers[pos + i][0] = mat[0 + i];
+ registers[pos + i][1] = mat[4 + i];
+ registers[pos + i][2] = mat[8 + i];
+ registers[pos + i][3] = mat[12 + i];
+ }
+}
+
+
+/**
+ * As above, but transpose the matrix.
+ */
+static void
+load_transpose_matrix(GLfloat registers[][4], GLuint pos,
+ const GLfloat mat[16])
+{
+ MEMCPY(registers[pos], mat, 16 * sizeof(GLfloat));
+}
+
+
+/**
+ * Load current vertex program's parameter registers with tracked
+ * matrices (if NV program). This only needs to be done per
+ * glBegin/glEnd, not per-vertex.
+ */
+void
+_mesa_load_tracked_matrices(GLcontext *ctx)
+{
+ GLuint i;
+
+ for (i = 0; i < MAX_NV_VERTEX_PROGRAM_PARAMS / 4; i++) {
+ /* point 'mat' at source matrix */
+ GLmatrix *mat;
+ if (ctx->VertexProgram.TrackMatrix[i] == GL_MODELVIEW) {
+ mat = ctx->ModelviewMatrixStack.Top;
+ }
+ else if (ctx->VertexProgram.TrackMatrix[i] == GL_PROJECTION) {
+ mat = ctx->ProjectionMatrixStack.Top;
+ }
+ else if (ctx->VertexProgram.TrackMatrix[i] == GL_TEXTURE) {
+ mat = ctx->TextureMatrixStack[ctx->Texture.CurrentUnit].Top;
+ }
+ else if (ctx->VertexProgram.TrackMatrix[i] == GL_COLOR) {
+ mat = ctx->ColorMatrixStack.Top;
+ }
+ else if (ctx->VertexProgram.TrackMatrix[i]==GL_MODELVIEW_PROJECTION_NV) {
+ /* XXX verify the combined matrix is up to date */
+ mat = &ctx->_ModelProjectMatrix;
+ }
+ else if (ctx->VertexProgram.TrackMatrix[i] >= GL_MATRIX0_NV &&
+ ctx->VertexProgram.TrackMatrix[i] <= GL_MATRIX7_NV) {
+ GLuint n = ctx->VertexProgram.TrackMatrix[i] - GL_MATRIX0_NV;
+ ASSERT(n < MAX_PROGRAM_MATRICES);
+ mat = ctx->ProgramMatrixStack[n].Top;
+ }
+ else {
+ /* no matrix is tracked, but we leave the register values as-is */
+ assert(ctx->VertexProgram.TrackMatrix[i] == GL_NONE);
+ continue;
+ }
+
+ /* load the matrix values into sequential registers */
+ if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_IDENTITY_NV) {
+ load_matrix(ctx->VertexProgram.Parameters, i*4, mat->m);
+ }
+ else if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_INVERSE_NV) {
+ _math_matrix_analyse(mat); /* update the inverse */
+ ASSERT(!_math_matrix_is_dirty(mat));
+ load_matrix(ctx->VertexProgram.Parameters, i*4, mat->inv);
+ }
+ else if (ctx->VertexProgram.TrackMatrixTransform[i] == GL_TRANSPOSE_NV) {
+ load_transpose_matrix(ctx->VertexProgram.Parameters, i*4, mat->m);
+ }
+ else {
+ assert(ctx->VertexProgram.TrackMatrixTransform[i]
+ == GL_INVERSE_TRANSPOSE_NV);
+ _math_matrix_analyse(mat); /* update the inverse */
+ ASSERT(!_math_matrix_is_dirty(mat));
+ load_transpose_matrix(ctx->VertexProgram.Parameters, i*4, mat->inv);
+ }
+ }
+}
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