Merge changes from topic "libagl"

* changes:
  Remove mention of legacy software renderer
  Nuke libagl and setEmulatorGlesValue

1 files changed, 0 insertions, 882 deletions

diff --git a/opengl/libagl/light.cpp b/opengl/libagl/light.cpp
deleted file mode 100644
index 216c725128..0000000000
--- a/opengl/libagl/light.cpp
+++ /dev/null
@@ -1,882 +0,0 @@
-/* libs/opengles/light.cpp
-**
-** Copyright 2006, The Android Open Source Project
-**
-** Licensed under the Apache License, Version 2.0 (the "License"); 
-** you may not use this file except in compliance with the License. 
-** You may obtain a copy of the License at 
-**
-**     http://www.apache.org/licenses/LICENSE-2.0 
-**
-** Unless required by applicable law or agreed to in writing, software 
-** distributed under the License is distributed on an "AS IS" BASIS, 
-** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 
-** See the License for the specific language governing permissions and 
-** limitations under the License.
-*/
-
-#include <stdio.h>
-#include "context.h"
-#include "fp.h"
-#include "light.h"
-#include "state.h"
-#include "matrix.h"
-
-
-#if defined(__arm__) && defined(__thumb__)
-#warning "light.cpp should not be compiled in thumb on ARM."
-#endif
-
-namespace android {
-
-// ----------------------------------------------------------------------------
-
-static void invalidate_lighting(ogles_context_t* c);
-static void lightVertexValidate(ogles_context_t* c, vertex_t* v);
-static void lightVertexNop(ogles_context_t* c, vertex_t* v);
-static void lightVertex(ogles_context_t* c, vertex_t* v);
-static void lightVertexMaterial(ogles_context_t* c, vertex_t* v);
-
-static inline void vscale3(GLfixed* d, const GLfixed* m, GLfixed s);
-
-static __attribute__((noinline))
-void vnorm3(GLfixed* d, const GLfixed* a);
-
-static inline void vsa3(GLfixed* d,
-    const GLfixed* m, GLfixed s, const GLfixed* a);
-static inline void vss3(GLfixed* d,
-    const GLfixed* m, GLfixed s, const GLfixed* a);
-static inline void vmla3(GLfixed* d,
-    const GLfixed* m0, const GLfixed* m1, const GLfixed* a);
-static inline void vmul3(GLfixed* d,
-    const GLfixed* m0, const GLfixed* m1);
-
-static GLfixed fog_linear(ogles_context_t* c, GLfixed z);
-static GLfixed fog_exp(ogles_context_t* c, GLfixed z);
-static GLfixed fog_exp2(ogles_context_t* c, GLfixed z);
-
-
-// ----------------------------------------------------------------------------
-
-static void init_white(vec4_t& c) {
-    c.r = c.g = c.b = c.a = 0x10000;
-}
-
-void ogles_init_light(ogles_context_t* c)
-{
-    for (unsigned int i=0 ; i<OGLES_MAX_LIGHTS ; i++) {
-        c->lighting.lights[i].ambient.a = 0x10000;
-        c->lighting.lights[i].position.z = 0x10000;
-        c->lighting.lights[i].spotDir.z = -0x10000;
-        c->lighting.lights[i].spotCutoff = gglIntToFixed(180);
-        c->lighting.lights[i].attenuation[0] = 0x10000;
-    }
-    init_white(c->lighting.lights[0].diffuse);
-    init_white(c->lighting.lights[0].specular);
-
-    c->lighting.front.ambient.r =
-    c->lighting.front.ambient.g =
-    c->lighting.front.ambient.b = gglFloatToFixed(0.2f);
-    c->lighting.front.ambient.a = 0x10000;
-    c->lighting.front.diffuse.r =
-    c->lighting.front.diffuse.g =
-    c->lighting.front.diffuse.b = gglFloatToFixed(0.8f);
-    c->lighting.front.diffuse.a = 0x10000;
-    c->lighting.front.specular.a = 0x10000;
-    c->lighting.front.emission.a = 0x10000;
-
-    c->lighting.lightModel.ambient.r =
-    c->lighting.lightModel.ambient.g =
-    c->lighting.lightModel.ambient.b = gglFloatToFixed(0.2f);
-    c->lighting.lightModel.ambient.a = 0x10000;
-
-    c->lighting.colorMaterial.face = GL_FRONT_AND_BACK;
-    c->lighting.colorMaterial.mode = GL_AMBIENT_AND_DIFFUSE;
-
-    c->fog.mode = GL_EXP;
-    c->fog.fog = fog_exp;
-    c->fog.density = 0x10000;
-    c->fog.end = 0x10000;
-    c->fog.invEndMinusStart = 0x10000;
-
-    invalidate_lighting(c);
-       
-    c->rasterizer.procs.shadeModel(c, GL_SMOOTH);
-    c->lighting.shadeModel = GL_SMOOTH;
-}
-
-void ogles_uninit_light(ogles_context_t* /*c*/)
-{
-}
-
-static inline int32_t clampF(GLfixed f) CONST;
-int32_t clampF(GLfixed f) {
-    f = (f & ~(f>>31));
-    if (f >= 0x10000)
-        f = 0x10000;
-    return f;
-}
-
-static GLfixed fog_linear(ogles_context_t* c, GLfixed z) {
-    return clampF(gglMulx((c->fog.end - ((z<0)?-z:z)), c->fog.invEndMinusStart));
-}
-
-static GLfixed fog_exp(ogles_context_t* c, GLfixed z) {
-    const float e = fixedToFloat(gglMulx(c->fog.density, ((z<0)?-z:z)));
-    return clampF(gglFloatToFixed(fastexpf(-e)));
-}
-
-static GLfixed fog_exp2(ogles_context_t* c, GLfixed z) {
-    const float e = fixedToFloat(gglMulx(c->fog.density, z));
-    return clampF(gglFloatToFixed(fastexpf(-e*e)));
-}
-
-// ----------------------------------------------------------------------------
-#if 0
-#pragma mark -
-#pragma mark math helpers
-#endif
-
-static inline
-void vscale3(GLfixed* d, const GLfixed* m, GLfixed s) {
-    d[0] = gglMulx(m[0], s);
-    d[1] = gglMulx(m[1], s);
-    d[2] = gglMulx(m[2], s);
-}
-
-static inline
-void vsa3(GLfixed* d, const GLfixed* m, GLfixed s, const GLfixed* a) {
-    d[0] = gglMulAddx(m[0], s, a[0]);
-    d[1] = gglMulAddx(m[1], s, a[1]);
-    d[2] = gglMulAddx(m[2], s, a[2]);
-}
-
-static inline
-void vss3(GLfixed* d, const GLfixed* m, GLfixed s, const GLfixed* a) {
-    d[0] = gglMulSubx(m[0], s, a[0]);
-    d[1] = gglMulSubx(m[1], s, a[1]);
-    d[2] = gglMulSubx(m[2], s, a[2]);
-}
-
-static inline
-void vmla3(GLfixed* d,
-        const GLfixed* m0, const GLfixed* m1, const GLfixed* a)
-{
-    d[0] = gglMulAddx(m0[0], m1[0], a[0]);
-    d[1] = gglMulAddx(m0[1], m1[1], a[1]);
-    d[2] = gglMulAddx(m0[2], m1[2], a[2]);
-}
-
-static inline
-void vmul3(GLfixed* d, const GLfixed* m0, const GLfixed* m1) {
-    d[0] = gglMulx(m0[0], m1[0]);
-    d[1] = gglMulx(m0[1], m1[1]);
-    d[2] = gglMulx(m0[2], m1[2]);
-}
-
-void vnorm3(GLfixed* d, const GLfixed* a)
-{
-    // we must take care of overflows when normalizing a vector
-    GLfixed n;
-    int32_t x = a[0];   x = x>=0 ? x : -x;
-    int32_t y = a[1];   y = y>=0 ? y : -y;
-    int32_t z = a[2];   z = z>=0 ? z : -z;
-    if (ggl_likely(x<=0x6800 && y<=0x6800 && z<= 0x6800)) {
-        // in this case this will all fit on 32 bits
-        n = x*x + y*y + z*z;
-        n = gglSqrtRecipx(n);
-        n <<= 8;
-    } else {
-        // here norm^2 is at least 0x7EC00000 (>>32 == 0.495117)
-        n = vsquare3(x, y, z);
-        n = gglSqrtRecipx(n);
-    }
-    vscale3(d, a, n);
-}
-
-// ----------------------------------------------------------------------------
-#if 0
-#pragma mark -
-#pragma mark lighting equations
-#endif
-
-static inline void light_picker(ogles_context_t* c)
-{
-    if (ggl_likely(!c->lighting.enable)) {
-        c->lighting.lightVertex = lightVertexNop;
-        return;
-    }
-    if (c->lighting.colorMaterial.enable) {
-        c->lighting.lightVertex = lightVertexMaterial;
-    } else {
-        c->lighting.lightVertex = lightVertex;
-    }
-}
-
-static inline void validate_light_mvi(ogles_context_t* c)
-{
-    uint32_t en = c->lighting.enabledLights;
-    // Vector from object to viewer, in eye coordinates
-    while (en) {
-        const int i = 31 - gglClz(en);
-        en &= ~(1<<i);
-        light_t& l = c->lighting.lights[i];
-#if OBJECT_SPACE_LIGHTING
-        c->transforms.mvui.point4(&c->transforms.mvui,
-                &l.objPosition, &l.position);
-#else
-        l.objPosition = l.position;
-#endif
-        vnorm3(l.normalizedObjPosition.v, l.objPosition.v);
-    }
-    const vec4_t eyeViewer = {{{ 0, 0, 0x10000, 0 }}};
-#if OBJECT_SPACE_LIGHTING
-    c->transforms.mvui.point3(&c->transforms.mvui,
-            &c->lighting.objViewer, &eyeViewer);
-    vnorm3(c->lighting.objViewer.v, c->lighting.objViewer.v);
-#else
-    c->lighting.objViewer = eyeViewer;
-#endif
-}
-
-static inline void validate_light(ogles_context_t* c)
-{
-    // if colorMaterial is enabled, we get the color from the vertex
-    if (!c->lighting.colorMaterial.enable) {
-        material_t& material = c->lighting.front;
-        uint32_t en = c->lighting.enabledLights;
-        while (en) {
-            const int i = 31 - gglClz(en);
-            en &= ~(1<<i);
-            light_t& l = c->lighting.lights[i];
-            vmul3(l.implicitAmbient.v,  material.ambient.v,  l.ambient.v);
-            vmul3(l.implicitDiffuse.v,  material.diffuse.v,  l.diffuse.v);
-            vmul3(l.implicitSpecular.v, material.specular.v, l.specular.v);
-            
-            // this is just a flag to tell if we have a specular component
-            l.implicitSpecular.v[3] =
-                    l.implicitSpecular.r |
-                    l.implicitSpecular.g |
-                    l.implicitSpecular.b;
-            
-            l.rConstAttenuation = (l.attenuation[1] | l.attenuation[2])==0;
-            if (l.rConstAttenuation)
-                l.rConstAttenuation = gglRecipFast(l.attenuation[0]);
-        }
-        // emission and ambient for the whole scene
-        vmla3(  c->lighting.implicitSceneEmissionAndAmbient.v,
-                c->lighting.lightModel.ambient.v,
-                material.ambient.v, 
-                material.emission.v);
-        c->lighting.implicitSceneEmissionAndAmbient.a = material.diffuse.a;
-    }
-    validate_light_mvi(c);
-}
-
-void invalidate_lighting(ogles_context_t* c)
-{
-    // TODO: pick lightVertexValidate or lightVertexValidateMVI
-    // instead of systematically the heavier lightVertexValidate()
-    c->lighting.lightVertex = lightVertexValidate;
-}
-
-void ogles_invalidate_lighting_mvui(ogles_context_t* c)
-{
-    invalidate_lighting(c);
-}
-
-void lightVertexNop(ogles_context_t*, vertex_t* /*v*/)
-{
-    // we should never end-up here
-}
-
-void lightVertexValidateMVI(ogles_context_t* c, vertex_t* v)
-{
-    validate_light_mvi(c);
-    light_picker(c);
-    c->lighting.lightVertex(c, v);
-}
-
-void lightVertexValidate(ogles_context_t* c, vertex_t* v)
-{
-    validate_light(c);
-    light_picker(c);
-    c->lighting.lightVertex(c, v);
-}
-
-void lightVertexMaterial(ogles_context_t* c, vertex_t* v)
-{
-    // fetch the material color
-    const GLvoid* cp = c->arrays.color.element(
-            v->index & vertex_cache_t::INDEX_MASK);
-    c->arrays.color.fetch(c, v->color.v, cp);
-
-    // acquire the color-material from the vertex
-    material_t& material = c->lighting.front;
-    material.ambient =
-    material.diffuse = v->color;
-    // implicit arguments need to be computed per/vertex
-    uint32_t en = c->lighting.enabledLights;
-    while (en) {
-        const int i = 31 - gglClz(en);
-        en &= ~(1<<i);
-        light_t& l = c->lighting.lights[i];
-        vmul3(l.implicitAmbient.v,  material.ambient.v,  l.ambient.v);
-        vmul3(l.implicitDiffuse.v,  material.diffuse.v,  l.diffuse.v);
-        vmul3(l.implicitSpecular.v, material.specular.v, l.specular.v);
-        // this is just a flag to tell if we have a specular component
-        l.implicitSpecular.v[3] =
-                l.implicitSpecular.r |
-                l.implicitSpecular.g |
-                l.implicitSpecular.b;
-    }
-    // emission and ambient for the whole scene
-    vmla3(  c->lighting.implicitSceneEmissionAndAmbient.v,
-            c->lighting.lightModel.ambient.v,
-            material.ambient.v, 
-            material.emission.v);
-    c->lighting.implicitSceneEmissionAndAmbient.a = material.diffuse.a;
-
-    // now we can light our vertex as usual
-    lightVertex(c, v);
-}
-
-void lightVertex(ogles_context_t* c, vertex_t* v)
-{
-    // emission and ambient for the whole scene
-    vec4_t r = c->lighting.implicitSceneEmissionAndAmbient;
-    const vec4_t objViewer = c->lighting.objViewer;
-
-    uint32_t en = c->lighting.enabledLights;
-    if (ggl_likely(en)) {
-        // since we do the lighting in object-space, we don't need to
-        // transform each normal. However, we might still have to normalize
-        // it if GL_NORMALIZE is enabled.
-        vec4_t n;
-        c->arrays.normal.fetch(c, n.v,
-            c->arrays.normal.element(v->index & vertex_cache_t::INDEX_MASK));
-
-#if !OBJECT_SPACE_LIGHTING
-        c->transforms.mvui.point3(&c->transforms.mvui, &n, &n);
-#endif
-
-        // TODO: right now we handle GL_RESCALE_NORMALS as if it were
-        // GL_NORMALIZE. We could optimize this by  scaling mvui 
-        // appropriately instead.
-        if (c->transforms.rescaleNormals)
-            vnorm3(n.v, n.v);
-
-        const material_t& material = c->lighting.front;
-        const int twoSide = c->lighting.lightModel.twoSide;
-
-        while (en) {
-            const int i = 31 - gglClz(en);
-            en &= ~(1<<i);
-            const light_t& l = c->lighting.lights[i];
-            
-            vec4_t d, t;
-            GLfixed s;
-            GLfixed sqDist = 0x10000;
-
-            // compute vertex-to-light vector
-            if (ggl_unlikely(l.position.w)) {
-                // lightPos/1.0 - vertex/vertex.w == lightPos*vertex.w - vertex
-#if !OBJECT_SPACE_LIGHTING
-                vec4_t o;
-                const transform_t& mv = c->transforms.modelview.transform;
-                mv.point4(&mv, &o, &v->obj);
-                vss3(d.v, l.objPosition.v, o.w, o.v);
-#else
-                vss3(d.v, l.objPosition.v, v->obj.w, v->obj.v);
-#endif
-                sqDist = dot3(d.v, d.v);
-                vscale3(d.v, d.v, gglSqrtRecipx(sqDist));
-            } else {
-                // TODO: avoid copy here
-                d = l.normalizedObjPosition;
-            }
-
-            // ambient & diffuse
-            s = dot3(n.v, d.v);
-            s = (s<0) ? (twoSide?(-s):0) : s;
-            vsa3(t.v, l.implicitDiffuse.v, s, l.implicitAmbient.v);
-
-            // specular
-            if (ggl_unlikely(s && l.implicitSpecular.v[3])) {
-                vec4_t h;
-                h.x = d.x + objViewer.x;
-                h.y = d.y + objViewer.y;
-                h.z = d.z + objViewer.z;
-                vnorm3(h.v, h.v);
-                s = dot3(n.v, h.v);
-                s = (s<0) ? (twoSide?(-s):0) : s;
-                if (s > 0) {
-                    s = gglPowx(s, material.shininess);
-                    vsa3(t.v, l.implicitSpecular.v, s, t.v);
-                }
-            }
-
-            // spot
-            if (ggl_unlikely(l.spotCutoff != gglIntToFixed(180))) {
-                GLfixed spotAtt = -dot3(l.normalizedSpotDir.v, d.v);
-                if (spotAtt >= l.spotCutoffCosine) {
-                    vscale3(t.v, t.v, gglPowx(spotAtt, l.spotExp));
-                }
-            }
-
-            // attenuation
-            if (ggl_unlikely(l.position.w)) {
-                if (l.rConstAttenuation) {
-                    s = l.rConstAttenuation;
-                } else {
-                    s = gglMulAddx(sqDist, l.attenuation[2], l.attenuation[0]);
-                    if (l.attenuation[1])
-                        s = gglMulAddx(gglSqrtx(sqDist), l.attenuation[1], s);
-                    s = gglRecipFast(s);
-                }
-                vscale3(t.v, t.v, s);
-            }
-
-            r.r += t.r;
-            r.g += t.g;
-            r.b += t.b;
-        }
-    }
-    v->color.r = gglClampx(r.r);
-    v->color.g = gglClampx(r.g);
-    v->color.b = gglClampx(r.b);
-    v->color.a = gglClampx(r.a);
-    v->flags |= vertex_t::LIT;
-}
-
-static void lightModelx(GLenum pname, GLfixed param, ogles_context_t* c)
-{
-    if (ggl_unlikely(pname != GL_LIGHT_MODEL_TWO_SIDE)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-    c->lighting.lightModel.twoSide = param ? GL_TRUE : GL_FALSE;
-    invalidate_lighting(c);
-}
-
-static void lightx(GLenum i, GLenum pname, GLfixed param, ogles_context_t* c)
-{
-    if (ggl_unlikely(uint32_t(i-GL_LIGHT0) >= OGLES_MAX_LIGHTS)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-
-    light_t& light = c->lighting.lights[i-GL_LIGHT0];
-    switch (pname) {
-    case GL_SPOT_EXPONENT:
-        if (GGLfixed(param) >= gglIntToFixed(128)) {
-            ogles_error(c, GL_INVALID_VALUE);
-            return;
-        }
-        light.spotExp = param;
-        break;
-    case GL_SPOT_CUTOFF:
-        if (param!=gglIntToFixed(180) && GGLfixed(param)>=gglIntToFixed(90)) {
-            ogles_error(c, GL_INVALID_VALUE);
-            return;
-        }
-        light.spotCutoff = param;
-        light.spotCutoffCosine = 
-                gglFloatToFixed(cosinef((M_PI/(180.0f*65536.0f))*param));
-        break;
-    case GL_CONSTANT_ATTENUATION:
-        if (param < 0) {
-            ogles_error(c, GL_INVALID_VALUE);
-            return;
-        }
-        light.attenuation[0] = param;
-        break;
-    case GL_LINEAR_ATTENUATION:
-        if (param < 0) {
-            ogles_error(c, GL_INVALID_VALUE);
-            return;
-        }
-        light.attenuation[1] = param;
-        break;
-    case GL_QUADRATIC_ATTENUATION:
-        if (param < 0) {
-            ogles_error(c, GL_INVALID_VALUE);
-            return;
-        }
-        light.attenuation[2] = param;
-        break;
-    default:
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-    invalidate_lighting(c);
-}
-
-static void lightxv(GLenum i, GLenum pname, const GLfixed *params, ogles_context_t* c)
-{
-    if (ggl_unlikely(uint32_t(i-GL_LIGHT0) >= OGLES_MAX_LIGHTS)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-
-    GLfixed* what;
-    light_t& light = c->lighting.lights[i-GL_LIGHT0];
-    switch (pname) {
-    case GL_AMBIENT:
-        what = light.ambient.v;
-        break;
-    case GL_DIFFUSE:
-        what = light.diffuse.v;
-        break;
-    case GL_SPECULAR:
-        what = light.specular.v;
-        break;
-    case GL_POSITION: {
-        ogles_validate_transform(c, transform_state_t::MODELVIEW);
-        transform_t& mv = c->transforms.modelview.transform;
-        mv.point4(&mv, &light.position, reinterpret_cast<vec4_t const*>(params));
-        invalidate_lighting(c);
-        return;
-    }
-    case GL_SPOT_DIRECTION: {
-#if OBJECT_SPACE_LIGHTING
-        ogles_validate_transform(c, transform_state_t::MVUI);
-        transform_t& mvui = c->transforms.mvui;
-        mvui.point3(&mvui, &light.spotDir, reinterpret_cast<vec4_t const*>(params));
-#else
-        light.spotDir = *reinterpret_cast<vec4_t const*>(params);
-#endif
-        vnorm3(light.normalizedSpotDir.v, light.spotDir.v);
-        invalidate_lighting(c);
-        return;
-    }
-    default:
-        lightx(i, pname, params[0], c);
-        return;
-    }
-    what[0] = params[0];
-    what[1] = params[1];
-    what[2] = params[2];
-    what[3] = params[3];
-    invalidate_lighting(c);
-}
-
-static void materialx(GLenum face, GLenum pname, GLfixed param, ogles_context_t* c)
-{
-    if (ggl_unlikely(face != GL_FRONT_AND_BACK)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-    if (ggl_unlikely(pname != GL_SHININESS)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-    c->lighting.front.shininess = param;
-    invalidate_lighting(c);
-}
-
-static void fogx(GLenum pname, GLfixed param, ogles_context_t* c)
-{
-    switch (pname) {
-    case GL_FOG_DENSITY:
-        if (param >= 0) {
-            c->fog.density = param;
-            break;
-        }
-        ogles_error(c, GL_INVALID_VALUE);
-        break;
-    case GL_FOG_START:
-        c->fog.start = param;
-        c->fog.invEndMinusStart = gglRecip(c->fog.end - c->fog.start);
-        break;
-    case GL_FOG_END:
-        c->fog.end = param;
-        c->fog.invEndMinusStart = gglRecip(c->fog.end - c->fog.start);
-        break;
-    case GL_FOG_MODE:
-        switch (param) {
-        case GL_LINEAR:
-            c->fog.mode = param;
-            c->fog.fog = fog_linear;
-            break;
-        case GL_EXP:
-            c->fog.mode = param;
-            c->fog.fog = fog_exp;
-            break;
-        case GL_EXP2:
-            c->fog.mode = param;
-            c->fog.fog = fog_exp2;
-            break;
-        default:
-            ogles_error(c, GL_INVALID_ENUM);
-            break;
-        }
-        break;
-    default:
-        ogles_error(c, GL_INVALID_ENUM);
-        break;
-    }
-}
-
-// ----------------------------------------------------------------------------
-}; // namespace android
-// ----------------------------------------------------------------------------
-
-using namespace android;
-
-#if 0
-#pragma mark -
-#pragma mark lighting APIs
-#endif
-
-void glShadeModel(GLenum mode)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    if (ggl_unlikely(mode != GL_SMOOTH && mode != GL_FLAT)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-    c->lighting.shadeModel = mode;
-}
-
-void glLightModelf(GLenum pname, GLfloat param)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    lightModelx(pname, gglFloatToFixed(param), c);
-}
-
-void glLightModelx(GLenum pname, GLfixed param)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    lightModelx(pname, param, c);
-}
-
-void glLightModelfv(GLenum pname, const GLfloat *params)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    if (pname == GL_LIGHT_MODEL_TWO_SIDE) {
-        lightModelx(pname, gglFloatToFixed(params[0]), c);
-        return;
-    }
-
-    if (ggl_unlikely(pname != GL_LIGHT_MODEL_AMBIENT)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-
-    c->lighting.lightModel.ambient.r = gglFloatToFixed(params[0]);
-    c->lighting.lightModel.ambient.g = gglFloatToFixed(params[1]);
-    c->lighting.lightModel.ambient.b = gglFloatToFixed(params[2]);
-    c->lighting.lightModel.ambient.a = gglFloatToFixed(params[3]);
-    invalidate_lighting(c);
-}
-
-void glLightModelxv(GLenum pname, const GLfixed *params)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    if (pname == GL_LIGHT_MODEL_TWO_SIDE) {
-        lightModelx(pname, params[0], c);
-        return;
-    }
-
-    if (ggl_unlikely(pname != GL_LIGHT_MODEL_AMBIENT)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-
-    c->lighting.lightModel.ambient.r = params[0];
-    c->lighting.lightModel.ambient.g = params[1];
-    c->lighting.lightModel.ambient.b = params[2];
-    c->lighting.lightModel.ambient.a = params[3];
-    invalidate_lighting(c);
-}
-
-// ----------------------------------------------------------------------------
-#if 0
-#pragma mark -
-#endif
-
-void glLightf(GLenum i, GLenum pname, GLfloat param)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    lightx(i, pname, gglFloatToFixed(param), c);
-}
-
-void glLightx(GLenum i, GLenum pname, GLfixed param)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    lightx(i, pname, param, c);
-}
-
-void glLightfv(GLenum i, GLenum pname, const GLfloat *params)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    switch (pname) {
-    case GL_SPOT_EXPONENT:
-    case GL_SPOT_CUTOFF:
-    case GL_CONSTANT_ATTENUATION:
-    case GL_LINEAR_ATTENUATION:
-    case GL_QUADRATIC_ATTENUATION:
-        lightx(i, pname, gglFloatToFixed(params[0]), c);
-        return;
-    }
-
-    GLfixed paramsx[4];
-    paramsx[0] = gglFloatToFixed(params[0]);
-    paramsx[1] = gglFloatToFixed(params[1]);
-    paramsx[2] = gglFloatToFixed(params[2]);
-    if (pname != GL_SPOT_DIRECTION)
-        paramsx[3] = gglFloatToFixed(params[3]);
-
-    lightxv(i, pname, paramsx, c);
-}
-
-void glLightxv(GLenum i, GLenum pname, const GLfixed *params)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    lightxv(i, pname, params, c);
-}
-
-// ----------------------------------------------------------------------------
-#if 0
-#pragma mark -
-#endif
-
-void glMaterialf(GLenum face, GLenum pname, GLfloat param)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    materialx(face, pname, gglFloatToFixed(param), c);
-}
-
-void glMaterialx(GLenum face, GLenum pname, GLfixed param)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    materialx(face, pname, param, c);
-}
-
-void glMaterialfv(
-    GLenum face, GLenum pname, const GLfloat *params)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    if (ggl_unlikely(face != GL_FRONT_AND_BACK)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-    GLfixed* what=0;
-    GLfixed* other=0;
-    switch (pname) {
-    case GL_AMBIENT:    what = c->lighting.front.ambient.v; break;
-    case GL_DIFFUSE:    what = c->lighting.front.diffuse.v; break;
-    case GL_SPECULAR:   what = c->lighting.front.specular.v; break;
-    case GL_EMISSION:   what = c->lighting.front.emission.v; break;
-    case GL_AMBIENT_AND_DIFFUSE:
-        what  = c->lighting.front.ambient.v;
-        other = c->lighting.front.diffuse.v;
-        break;
-    case GL_SHININESS:
-        c->lighting.front.shininess = gglFloatToFixed(params[0]);
-        invalidate_lighting(c);
-        return;
-    default:
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-    what[0] = gglFloatToFixed(params[0]);
-    what[1] = gglFloatToFixed(params[1]);
-    what[2] = gglFloatToFixed(params[2]);
-    what[3] = gglFloatToFixed(params[3]);
-    if (other) {
-        other[0] = what[0];
-        other[1] = what[1];
-        other[2] = what[2];
-        other[3] = what[3];
-    }
-    invalidate_lighting(c);
-}
-
-void glMaterialxv(
-    GLenum face, GLenum pname, const GLfixed *params)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    if (ggl_unlikely(face != GL_FRONT_AND_BACK)) {
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-    GLfixed* what=0;
-    GLfixed* other=0;
-    switch (pname) {
-    case GL_AMBIENT:    what = c->lighting.front.ambient.v; break;
-    case GL_DIFFUSE:    what = c->lighting.front.diffuse.v; break;
-    case GL_SPECULAR:   what = c->lighting.front.specular.v; break;
-    case GL_EMISSION:   what = c->lighting.front.emission.v; break;
-    case GL_AMBIENT_AND_DIFFUSE:
-        what  = c->lighting.front.ambient.v;
-        other = c->lighting.front.diffuse.v;
-        break;
-    case GL_SHININESS:
-        c->lighting.front.shininess = gglFloatToFixed(params[0]);
-        invalidate_lighting(c);
-        return;
-    default:
-        ogles_error(c, GL_INVALID_ENUM);
-        return;
-    }
-    what[0] = params[0];
-    what[1] = params[1];
-    what[2] = params[2];
-    what[3] = params[3];
-    if (other) {
-        other[0] = what[0];
-        other[1] = what[1];
-        other[2] = what[2];
-        other[3] = what[3];
-    }
-    invalidate_lighting(c);
-}
-
-// ----------------------------------------------------------------------------
-#if 0
-#pragma mark -
-#pragma mark fog
-#endif
-
-void glFogf(GLenum pname, GLfloat param) {
-    ogles_context_t* c = ogles_context_t::get();
-    GLfixed paramx = (GLfixed)param;
-    if (pname != GL_FOG_MODE)
-        paramx = gglFloatToFixed(param);
-    fogx(pname, paramx, c);
-}
-
-void glFogx(GLenum pname, GLfixed param) {
-    ogles_context_t* c = ogles_context_t::get();
-    fogx(pname, param, c);
-}
-
-void glFogfv(GLenum pname, const GLfloat *params)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    if (pname != GL_FOG_COLOR) {
-        GLfixed paramx = (GLfixed)params[0];
-        if (pname != GL_FOG_MODE)
-            paramx = gglFloatToFixed(params[0]);
-        fogx(pname, paramx, c);
-        return;
-    }
-    GLfixed paramsx[4];
-    paramsx[0] = gglFloatToFixed(params[0]);
-    paramsx[1] = gglFloatToFixed(params[1]);
-    paramsx[2] = gglFloatToFixed(params[2]);
-    paramsx[3] = gglFloatToFixed(params[3]);
-    c->rasterizer.procs.fogColor3xv(c, paramsx);
-}
-
-void glFogxv(GLenum pname, const GLfixed *params)
-{
-    ogles_context_t* c = ogles_context_t::get();
-    if (pname != GL_FOG_COLOR) {
-        fogx(pname, params[0], c);
-        return;
-    }
-    c->rasterizer.procs.fogColor3xv(c, params);
-}