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-rw-r--r--src/mesa/main/ffvertex_prog.c272
-rw-r--r--src/mesa/main/light.c1
-rw-r--r--src/mesa/main/state.c26
-rw-r--r--src/mesa/shader/prog_statevars.c48
-rw-r--r--src/mesa/shader/prog_statevars.h6
5 files changed, 259 insertions, 94 deletions
diff --git a/src/mesa/main/ffvertex_prog.c b/src/mesa/main/ffvertex_prog.c
index 810af9e33e..2ef3286e57 100644
--- a/src/mesa/main/ffvertex_prog.c
+++ b/src/mesa/main/ffvertex_prog.c
@@ -53,7 +53,9 @@ struct state_key {
unsigned light_color_material:1;
unsigned light_color_material_mask:12;
unsigned light_material_mask:12;
+ unsigned material_shininess_is_zero:1;
+ unsigned need_eye_coords:1;
unsigned normalize:1;
unsigned rescale_normals:1;
unsigned fog_source_is_depth:1;
@@ -154,6 +156,26 @@ tnl_get_per_vertex_fog(GLcontext *ctx)
#endif
}
+static GLboolean check_active_shininess( GLcontext *ctx,
+ const struct state_key *key,
+ GLuint side )
+{
+ GLuint bit = 1 << (MAT_ATTRIB_FRONT_SHININESS + side);
+
+ if (key->light_color_material_mask & bit)
+ return GL_TRUE;
+
+ if (key->light_material_mask & bit)
+ return GL_TRUE;
+
+ if (ctx->Light.Material.Attrib[MAT_ATTRIB_FRONT_SHININESS + side][0] != 0.0F)
+ return GL_TRUE;
+
+ return GL_FALSE;
+}
+
+
+
static struct state_key *make_state_key( GLcontext *ctx )
{
@@ -167,6 +189,8 @@ static struct state_key *make_state_key( GLcontext *ctx )
*/
assert(fp);
+ key->need_eye_coords = ctx->_NeedEyeCoords;
+
key->fragprog_inputs_read = fp->Base.InputsRead;
if (ctx->RenderMode == GL_FEEDBACK) {
@@ -211,6 +235,17 @@ static struct state_key *make_state_key( GLcontext *ctx )
key->unit[i].light_attenuated = 1;
}
}
+
+ if (check_active_shininess(ctx, key, 0)) {
+ key->material_shininess_is_zero = 0;
+ }
+ else if (key->light_twoside &&
+ check_active_shininess(ctx, key, 1)) {
+ key->material_shininess_is_zero = 0;
+ }
+ else {
+ key->material_shininess_is_zero = 1;
+ }
}
if (ctx->Transform.Normalize)
@@ -270,7 +305,7 @@ static struct state_key *make_state_key( GLcontext *ctx )
* generated program with line/function references for each
* instruction back into this file:
*/
-#define DISASSEM (MESA_VERBOSE&VERBOSE_DISASSEM)
+#define DISASSEM 1
/* Should be tunable by the driver - do we want to do matrix
* multiplications with DP4's or with MUL/MAD's? SSE works better
@@ -309,8 +344,9 @@ struct tnl_program {
GLuint temp_reserved;
struct ureg eye_position;
+ struct ureg eye_position_z;
struct ureg eye_position_normalized;
- struct ureg eye_normal;
+ struct ureg transformed_normal;
struct ureg identity;
GLuint materials;
@@ -653,9 +689,9 @@ static void emit_normalize_vec3( struct tnl_program *p,
struct ureg src )
{
struct ureg tmp = get_temp(p);
- emit_op2(p, OPCODE_DP3, tmp, 0, src, src);
- emit_op1(p, OPCODE_RSQ, tmp, 0, tmp);
- emit_op2(p, OPCODE_MUL, dest, 0, src, tmp);
+ emit_op2(p, OPCODE_DP3, tmp, WRITEMASK_X, src, src);
+ emit_op1(p, OPCODE_RSQ, tmp, WRITEMASK_X, tmp);
+ emit_op2(p, OPCODE_MUL, dest, 0, src, swizzle1(tmp, X));
release_temp(p, tmp);
}
@@ -693,6 +729,28 @@ static struct ureg get_eye_position( struct tnl_program *p )
}
+static struct ureg get_eye_position_z( struct tnl_program *p )
+{
+ if (!is_undef(p->eye_position))
+ return swizzle1(p->eye_position, Z);
+
+ if (is_undef(p->eye_position_z)) {
+ struct ureg pos = register_input( p, VERT_ATTRIB_POS );
+ struct ureg modelview[4];
+
+ p->eye_position_z = reserve_temp(p);
+
+ register_matrix_param5( p, STATE_MODELVIEW_MATRIX, 0, 0, 3,
+ 0, modelview );
+
+ emit_op2(p, OPCODE_DP4, p->eye_position_z, 0, pos, modelview[2]);
+ }
+
+ return p->eye_position_z;
+}
+
+
+
static struct ureg get_eye_position_normalized( struct tnl_program *p )
{
if (is_undef(p->eye_position_normalized)) {
@@ -705,36 +763,52 @@ static struct ureg get_eye_position_normalized( struct tnl_program *p )
}
-static struct ureg get_eye_normal( struct tnl_program *p )
+static struct ureg get_transformed_normal( struct tnl_program *p )
{
- if (is_undef(p->eye_normal)) {
+ if (is_undef(p->transformed_normal) &&
+ !p->state->need_eye_coords &&
+ !p->state->normalize &&
+ !(p->state->need_eye_coords == p->state->rescale_normals))
+ {
+ p->transformed_normal = register_input(p, VERT_ATTRIB_NORMAL );
+ }
+ else if (is_undef(p->transformed_normal))
+ {
struct ureg normal = register_input(p, VERT_ATTRIB_NORMAL );
struct ureg mvinv[3];
+ struct ureg transformed_normal = reserve_temp(p);
- register_matrix_param5( p, STATE_MODELVIEW_MATRIX, 0, 0, 2,
- STATE_MATRIX_INVTRANS, mvinv );
-
- p->eye_normal = reserve_temp(p);
+ if (p->state->need_eye_coords) {
+ register_matrix_param5( p, STATE_MODELVIEW_MATRIX, 0, 0, 2,
+ STATE_MATRIX_INVTRANS, mvinv );
- /* Transform to eye space:
- */
- emit_matrix_transform_vec3( p, p->eye_normal, mvinv, normal );
+ /* Transform to eye space:
+ */
+ emit_matrix_transform_vec3( p, transformed_normal, mvinv, normal );
+ normal = transformed_normal;
+ }
/* Normalize/Rescale:
*/
if (p->state->normalize) {
- emit_normalize_vec3( p, p->eye_normal, p->eye_normal );
+ emit_normalize_vec3( p, transformed_normal, normal );
+ normal = transformed_normal;
}
- else if (p->state->rescale_normals) {
+ else if (p->state->need_eye_coords == p->state->rescale_normals) {
+ /* This is already adjusted for eye/non-eye rendering:
+ */
struct ureg rescale = register_param2(p, STATE_INTERNAL,
- STATE_NORMAL_SCALE);
+ STATE_NORMAL_SCALE);
- emit_op2( p, OPCODE_MUL, p->eye_normal, 0, p->eye_normal,
- swizzle1(rescale, X));
+ emit_op2( p, OPCODE_MUL, transformed_normal, 0, normal, rescale );
+ normal = transformed_normal;
}
+
+ assert(normal.file == PROGRAM_TEMPORARY);
+ p->transformed_normal = normal;
}
- return p->eye_normal;
+ return p->transformed_normal;
}
@@ -856,7 +930,7 @@ static struct ureg calculate_light_attenuation( struct tnl_program *p,
*/
if (!p->state->unit[i].light_spotcutoff_is_180) {
struct ureg spot_dir_norm = register_param3(p, STATE_INTERNAL,
- STATE_SPOT_DIR_NORMALIZED, i);
+ STATE_LIGHT_SPOT_DIR_NORMALIZED, i);
struct ureg spot = get_temp(p);
struct ureg slt = get_temp(p);
@@ -895,7 +969,26 @@ static struct ureg calculate_light_attenuation( struct tnl_program *p,
}
+static void emit_degenerate_lit( struct tnl_program *p,
+ struct ureg lit,
+ struct ureg dots )
+{
+ struct ureg id = get_identity_param(p);
+
+ /* Note that result.x & result.w will not be examined. Note also that
+ * dots.xyzw == dots.xxxx.
+ */
+
+ /* result[1] = MAX2(in, 0)
+ */
+ emit_op2(p, OPCODE_MAX, lit, 0, id, dots);
+ /* result[2] = (in > 0 ? 1 : 0)
+ */
+ emit_op2(p, OPCODE_SLT, lit, WRITEMASK_Z,
+ lit, /* 0 */
+ dots); /* in[0] */
+}
/* Need to add some addtional parameters to allow lighting in object
@@ -907,7 +1000,7 @@ static void build_lighting( struct tnl_program *p )
const GLboolean twoside = p->state->light_twoside;
const GLboolean separate = p->state->separate_specular;
GLuint nr_lights = 0, count = 0;
- struct ureg normal = get_eye_normal(p);
+ struct ureg normal = get_transformed_normal(p);
struct ureg lit = get_temp(p);
struct ureg dots = get_temp(p);
struct ureg _col0 = undef, _col1 = undef;
@@ -921,9 +1014,11 @@ static void build_lighting( struct tnl_program *p )
set_material_flags(p);
{
- struct ureg shininess = get_material(p, 0, STATE_SHININESS);
- emit_op1(p, OPCODE_MOV, dots, WRITEMASK_W, swizzle1(shininess,X));
- release_temp(p, shininess);
+ if (!p->state->material_shininess_is_zero) {
+ struct ureg shininess = get_material(p, 0, STATE_SHININESS);
+ emit_op1(p, OPCODE_MOV, dots, WRITEMASK_W, swizzle1(shininess,X));
+ release_temp(p, shininess);
+ }
_col0 = make_temp(p, get_scenecolor(p, 0));
if (separate)
@@ -934,10 +1029,12 @@ static void build_lighting( struct tnl_program *p )
}
if (twoside) {
- struct ureg shininess = get_material(p, 1, STATE_SHININESS);
- emit_op1(p, OPCODE_MOV, dots, WRITEMASK_Z,
- negate(swizzle1(shininess,X)));
- release_temp(p, shininess);
+ if (!p->state->material_shininess_is_zero) {
+ struct ureg shininess = get_material(p, 1, STATE_SHININESS);
+ emit_op1(p, OPCODE_MOV, dots, WRITEMASK_Z,
+ negate(swizzle1(shininess,X)));
+ release_temp(p, shininess);
+ }
_bfc0 = make_temp(p, get_scenecolor(p, 1));
if (separate)
@@ -984,25 +1081,28 @@ static void build_lighting( struct tnl_program *p )
/* Can used precomputed constants in this case.
* Attenuation never applies to infinite lights.
*/
- VPpli = register_param3(p, STATE_LIGHT, i,
- STATE_POSITION_NORMALIZED);
- if (p->state->light_local_viewer) {
- struct ureg eye_hat = get_eye_position_normalized(p);
- half = get_temp(p);
- emit_op2(p, OPCODE_SUB, half, 0, VPpli, eye_hat);
- emit_normalize_vec3(p, half, half);
- } else {
- half = register_param3(p, STATE_LIGHT, i, STATE_HALF_VECTOR);
+ VPpli = register_param3(p, STATE_INTERNAL,
+ STATE_LIGHT_POSITION_NORMALIZED, i);
+
+ if (!p->state->material_shininess_is_zero) {
+ if (p->state->light_local_viewer) {
+ struct ureg eye_hat = get_eye_position_normalized(p);
+ half = get_temp(p);
+ emit_op2(p, OPCODE_SUB, half, 0, VPpli, eye_hat);
+ emit_normalize_vec3(p, half, half);
+ } else {
+ half = register_param3(p, STATE_INTERNAL,
+ STATE_LIGHT_HALF_VECTOR, i);
+ }
}
}
else {
- struct ureg Ppli = register_param3(p, STATE_LIGHT, i,
- STATE_POSITION);
+ struct ureg Ppli = register_param3(p, STATE_INTERNAL,
+ STATE_LIGHT_POSITION, i);
struct ureg V = get_eye_position(p);
struct ureg dist = get_temp(p);
VPpli = get_temp(p);
- half = get_temp(p);
/* Calculate VPpli vector
*/
@@ -1024,24 +1124,33 @@ static void build_lighting( struct tnl_program *p )
/* Calculate viewer direction, or use infinite viewer:
*/
- if (p->state->light_local_viewer) {
- struct ureg eye_hat = get_eye_position_normalized(p);
- emit_op2(p, OPCODE_SUB, half, 0, VPpli, eye_hat);
- }
- else {
- struct ureg z_dir = swizzle(get_identity_param(p),X,Y,W,Z);
- emit_op2(p, OPCODE_ADD, half, 0, VPpli, z_dir);
- }
-
- emit_normalize_vec3(p, half, half);
+ if (!p->state->material_shininess_is_zero) {
+ half = get_temp(p);
+
+ if (p->state->light_local_viewer) {
+ struct ureg eye_hat = get_eye_position_normalized(p);
+ emit_op2(p, OPCODE_SUB, half, 0, VPpli, eye_hat);
+ }
+ else {
+ struct ureg z_dir = swizzle(get_identity_param(p),X,Y,W,Z);
+ emit_op2(p, OPCODE_ADD, half, 0, VPpli, z_dir);
+ }
+
+ emit_normalize_vec3(p, half, half);
+ }
release_temp(p, dist);
}
/* Calculate dot products:
*/
- emit_op2(p, OPCODE_DP3, dots, WRITEMASK_X, normal, VPpli);
- emit_op2(p, OPCODE_DP3, dots, WRITEMASK_Y, normal, half);
+ if (p->state->material_shininess_is_zero) {
+ emit_op2(p, OPCODE_DP3, dots, 0, normal, VPpli);
+ }
+ else {
+ emit_op2(p, OPCODE_DP3, dots, WRITEMASK_X, normal, VPpli);
+ emit_op2(p, OPCODE_DP3, dots, WRITEMASK_Y, normal, half);
+ }
/* Front face lighting:
*/
@@ -1052,11 +1161,6 @@ static void build_lighting( struct tnl_program *p )
struct ureg res0, res1;
GLuint mask0, mask1;
- emit_op1(p, OPCODE_LIT, lit, 0, dots);
-
- if (!is_undef(att))
- emit_op2(p, OPCODE_MUL, lit, 0, lit, att);
-
if (count == nr_lights) {
if (separate) {
@@ -1078,7 +1182,21 @@ static void build_lighting( struct tnl_program *p )
res1 = _col1;
}
- emit_op3(p, OPCODE_MAD, _col0, 0, swizzle1(lit,X), ambient, _col0);
+
+ if (!is_undef(att)) {
+ emit_op1(p, OPCODE_LIT, lit, 0, dots);
+ emit_op2(p, OPCODE_MUL, lit, 0, lit, att);
+ emit_op3(p, OPCODE_MAD, _col0, 0, swizzle1(lit,X), ambient, _col0);
+ }
+ else if (!p->state->material_shininess_is_zero) {
+ emit_op1(p, OPCODE_LIT, lit, 0, dots);
+ emit_op2(p, OPCODE_ADD, _col0, 0, ambient, _col0);
+ }
+ else {
+ emit_degenerate_lit(p, lit, dots);
+ emit_op2(p, OPCODE_ADD, _col0, 0, ambient, _col0);
+ }
+
emit_op3(p, OPCODE_MAD, res0, mask0, swizzle1(lit,Y), diffuse, _col0);
emit_op3(p, OPCODE_MAD, res1, mask1, swizzle1(lit,Z), specular, _col1);
@@ -1096,11 +1214,6 @@ static void build_lighting( struct tnl_program *p )
struct ureg res0, res1;
GLuint mask0, mask1;
- emit_op1(p, OPCODE_LIT, lit, 0, negate(swizzle(dots,X,Y,W,Z)));
-
- if (!is_undef(att))
- emit_op2(p, OPCODE_MUL, lit, 0, lit, att);
-
if (count == nr_lights) {
if (separate) {
mask0 = WRITEMASK_XYZ;
@@ -1121,7 +1234,23 @@ static void build_lighting( struct tnl_program *p )
mask1 = 0;
}
- emit_op3(p, OPCODE_MAD, _bfc0, 0, swizzle1(lit,X), ambient, _bfc0);
+ dots = negate(swizzle(dots,X,Y,W,Z));
+
+ if (!is_undef(att)) {
+ emit_op1(p, OPCODE_LIT, lit, 0, dots);
+ emit_op2(p, OPCODE_MUL, lit, 0, lit, att);
+ emit_op3(p, OPCODE_MAD, _bfc0, 0, swizzle1(lit,X), ambient, _bfc0);
+ }
+ else if (!p->state->material_shininess_is_zero) {
+ emit_op1(p, OPCODE_LIT, lit, 0, dots);
+ emit_op2(p, OPCODE_ADD, _col0, 0, ambient, _col0);
+ }
+ else {
+ emit_degenerate_lit(p, lit, dots);
+ emit_op2(p, OPCODE_ADD, _col0, 0, ambient, _col0);
+ }
+
+ emit_op2(p, OPCODE_ADD, _bfc0, 0, ambient, _bfc0);
emit_op3(p, OPCODE_MAD, res0, mask0, swizzle1(lit,Y), diffuse, _bfc0);
emit_op3(p, OPCODE_MAD, res1, mask1, swizzle1(lit,Z), specular, _bfc1);
@@ -1146,7 +1275,7 @@ static void build_fog( struct tnl_program *p )
struct ureg input;
if (p->state->fog_source_is_depth) {
- input = swizzle1(get_eye_position(p), Z);
+ input = get_eye_position_z(p);
}
else {
input = swizzle1(register_input(p, VERT_ATTRIB_FOG), X);
@@ -1201,7 +1330,7 @@ static void build_reflect_texgen( struct tnl_program *p,
struct ureg dest,
GLuint writemask )
{
- struct ureg normal = get_eye_normal(p);
+ struct ureg normal = get_transformed_normal(p);
struct ureg eye_hat = get_eye_position_normalized(p);
struct ureg tmp = get_temp(p);
@@ -1219,7 +1348,7 @@ static void build_sphere_texgen( struct tnl_program *p,
struct ureg dest,
GLuint writemask )
{
- struct ureg normal = get_eye_normal(p);
+ struct ureg normal = get_transformed_normal(p);
struct ureg eye_hat = get_eye_position_normalized(p);
struct ureg tmp = get_temp(p);
struct ureg half = register_scalar_const(p, .5);
@@ -1338,7 +1467,7 @@ static void build_texture_transform( struct tnl_program *p )
}
if (normal_mask) {
- struct ureg normal = get_eye_normal(p);
+ struct ureg normal = get_transformed_normal(p);
emit_op1(p, OPCODE_MOV, out_texgen, normal_mask, normal );
}
@@ -1376,7 +1505,7 @@ static void build_texture_transform( struct tnl_program *p )
static void build_pointsize( struct tnl_program *p )
{
- struct ureg eye = get_eye_position(p);
+ struct ureg eye = get_eye_position_z(p);
struct ureg state_size = register_param1(p, STATE_POINT_SIZE);
struct ureg state_attenuation = register_param1(p, STATE_POINT_ATTENUATION);
struct ureg out = register_output(p, VERT_RESULT_PSIZ);
@@ -1474,8 +1603,9 @@ create_new_program( const struct state_key *key,
p.state = key;
p.program = program;
p.eye_position = undef;
+ p.eye_position_z = undef;
p.eye_position_normalized = undef;
- p.eye_normal = undef;
+ p.transformed_normal = undef;
p.identity = undef;
p.temp_in_use = 0;
diff --git a/src/mesa/main/light.c b/src/mesa/main/light.c
index 6e057614ba..0af647e13c 100644
--- a/src/mesa/main/light.c
+++ b/src/mesa/main/light.c
@@ -1357,6 +1357,7 @@ _mesa_init_lighting( GLcontext *ctx )
/* Miscellaneous */
ctx->Light._NeedEyeCoords = GL_FALSE;
ctx->_NeedEyeCoords = GL_FALSE;
+ ctx->_ForceEyeCoords = GL_TRUE;
ctx->_ModelViewInvScale = 1.0;
}
diff --git a/src/mesa/main/state.c b/src/mesa/main/state.c
index f8cb943e64..cdf1249cd0 100644
--- a/src/mesa/main/state.c
+++ b/src/mesa/main/state.c
@@ -1209,18 +1209,6 @@ _mesa_update_state_locked( GLcontext *ctx )
| _NEW_STENCIL | _DD_NEW_SEPARATE_SPECULAR))
update_tricaps( ctx, new_state );
- if (ctx->FragmentProgram._MaintainTexEnvProgram) {
- prog_flags |= (_NEW_TEXTURE | _NEW_FOG | _DD_NEW_SEPARATE_SPECULAR);
- }
- if (ctx->VertexProgram._MaintainTnlProgram) {
- prog_flags |= (_NEW_TEXTURE | _NEW_TEXTURE_MATRIX |
- _NEW_TRANSFORM | _NEW_POINT |
- _NEW_FOG | _NEW_LIGHT);
- }
- if (new_state & prog_flags)
- update_program( ctx );
-
-
/* ctx->_NeedEyeCoords is now up to date.
*
* If the truth value of this variable has changed, update for the
@@ -1233,6 +1221,20 @@ _mesa_update_state_locked( GLcontext *ctx )
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_TEXTURE | _NEW_TEXTURE_MATRIX |
+ _NEW_TRANSFORM | _NEW_POINT |
+ _NEW_FOG | _NEW_LIGHT |
+ _MESA_NEW_NEED_EYE_COORDS);
+ }
+ if (new_state & prog_flags)
+ update_program( ctx );
+
+
+
/*
* Give the driver a chance to act upon the new_state flags.
* The driver might plug in different span functions, for example.
diff --git a/src/mesa/shader/prog_statevars.c b/src/mesa/shader/prog_statevars.c
index ba3c988445..44fbfdcd04 100644
--- a/src/mesa/shader/prog_statevars.c
+++ b/src/mesa/shader/prog_statevars.c
@@ -134,10 +134,6 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
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");
return;
@@ -401,7 +397,11 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
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:
{
@@ -431,15 +431,46 @@ _mesa_fetch_state(GLcontext *ctx, const gl_state_index state[],
value[2] = ctx->Fog.Density * ONE_DIV_LN2;
value[3] = 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;
@@ -696,7 +727,6 @@ append_token(char *dst, gl_state_index k)
append(dst, "normalScale");
break;
case STATE_INTERNAL:
- case STATE_POSITION_NORMALIZED:
append(dst, "(internal)");
break;
case STATE_PT_SCALE:
diff --git a/src/mesa/shader/prog_statevars.h b/src/mesa/shader/prog_statevars.h
index d12142055f..a515fda3aa 100644
--- a/src/mesa/shader/prog_statevars.h
+++ b/src/mesa/shader/prog_statevars.h
@@ -106,9 +106,11 @@ typedef enum gl_state_index_ {
STATE_INTERNAL, /* Mesa additions */
STATE_NORMAL_SCALE,
STATE_TEXRECT_SCALE,
- STATE_POSITION_NORMALIZED, /* normalized light position */
STATE_FOG_PARAMS_OPTIMIZED, /* for faster fog calc */
- STATE_SPOT_DIR_NORMALIZED, /* pre-normalized spot dir */
+ STATE_LIGHT_SPOT_DIR_NORMALIZED, /* pre-normalized spot dir */
+ STATE_LIGHT_POSITION, /* object vs eye space */
+ STATE_LIGHT_POSITION_NORMALIZED, /* object vs eye space */
+ STATE_LIGHT_HALF_VECTOR, /* object vs eye space */
STATE_PT_SCALE, /**< Pixel transfer RGBA scale */
STATE_PT_BIAS, /**< Pixel transfer RGBA bias */
STATE_PCM_SCALE, /**< Post color matrix RGBA scale */
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 13:28:57 +0000