src/libANGLE/context_private_call.cpp

//
// Copyright 2023 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//

// context_private_call.cpp:
//   Helpers that set/get state that is entirely locally accessed by the context.

#include "libANGLE/context_private_call_autogen.h"

#include "common/debug.h"
#include "libANGLE/queryconversions.h"
#include "libANGLE/queryutils.h"

namespace
{
angle::Mat4 FixedMatrixToMat4(const GLfixed *m)
{
    angle::Mat4 matrixAsFloat;
    GLfloat *floatData = matrixAsFloat.data();

    for (int i = 0; i < 16; i++)
    {
        floatData[i] = gl::ConvertFixedToFloat(m[i]);
    }

    return matrixAsFloat;
}
}  // namespace

namespace gl
{
void ContextPrivateClearColor(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLfloat red,
                              GLfloat green,
                              GLfloat blue,
                              GLfloat alpha)
{
    privateState->setColorClearValue(red, green, blue, alpha);
}

void ContextPrivateClearDepthf(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLfloat depth)
{
    privateState->setDepthClearValue(clamp01(depth));
}

void ContextPrivateClearStencil(PrivateState *privateState,
                                PrivateStateCache *privateStateCache,
                                GLint stencil)
{
    privateState->setStencilClearValue(stencil);
}

void ContextPrivateClearColorx(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLfixed red,
                               GLfixed green,
                               GLfixed blue,
                               GLfixed alpha)
{
    ContextPrivateClearColor(privateState, privateStateCache, ConvertFixedToFloat(red),
                             ConvertFixedToFloat(green), ConvertFixedToFloat(blue),
                             ConvertFixedToFloat(alpha));
}

void ContextPrivateClearDepthx(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLfixed depth)
{
    ContextPrivateClearDepthf(privateState, privateStateCache, ConvertFixedToFloat(depth));
}

void ContextPrivateColorMask(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLboolean red,
                             GLboolean green,
                             GLboolean blue,
                             GLboolean alpha)
{
    privateState->setColorMask(ConvertToBool(red), ConvertToBool(green), ConvertToBool(blue),
                               ConvertToBool(alpha));
    privateStateCache->onColorMaskChange();
}

void ContextPrivateColorMaski(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLuint index,
                              GLboolean r,
                              GLboolean g,
                              GLboolean b,
                              GLboolean a)
{
    privateState->setColorMaskIndexed(ConvertToBool(r), ConvertToBool(g), ConvertToBool(b),
                                      ConvertToBool(a), index);
    privateStateCache->onColorMaskChange();
}

void ContextPrivateDepthMask(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLboolean flag)
{
    privateState->setDepthMask(ConvertToBool(flag));
}

void ContextPrivateDisable(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           GLenum cap)
{
    privateState->setEnableFeature(cap, false);
    privateStateCache->onCapChange();
}

void ContextPrivateDisablei(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            GLenum target,
                            GLuint index)
{
    privateState->setEnableFeatureIndexed(target, false, index);
    privateStateCache->onCapChange();
}

void ContextPrivateEnable(PrivateState *privateState,
                          PrivateStateCache *privateStateCache,
                          GLenum cap)
{
    privateState->setEnableFeature(cap, true);
    privateStateCache->onCapChange();
}

void ContextPrivateEnablei(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           GLenum target,
                           GLuint index)
{
    privateState->setEnableFeatureIndexed(target, true, index);
    privateStateCache->onCapChange();
}

void ContextPrivateActiveTexture(PrivateState *privateState,
                                 PrivateStateCache *privateStateCache,
                                 GLenum texture)
{
    privateState->setActiveSampler(texture - GL_TEXTURE0);
}

void ContextPrivateCullFace(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            CullFaceMode mode)
{
    privateState->setCullMode(mode);
}

void ContextPrivateDepthFunc(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLenum func)
{
    privateState->setDepthFunc(func);
}

void ContextPrivateDepthRangef(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLfloat zNear,
                               GLfloat zFar)
{
    privateState->setDepthRange(clamp01(zNear), clamp01(zFar));
}

void ContextPrivateDepthRangex(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLfixed zNear,
                               GLfixed zFar)
{
    ContextPrivateDepthRangef(privateState, privateStateCache, ConvertFixedToFloat(zNear),
                              ConvertFixedToFloat(zFar));
}

void ContextPrivateFrontFace(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLenum mode)
{
    privateState->setFrontFace(mode);
}

void ContextPrivateLineWidth(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLfloat width)
{
    privateState->setLineWidth(width);
}

void ContextPrivateLineWidthx(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLfixed width)
{
    ContextPrivateLineWidth(privateState, privateStateCache, ConvertFixedToFloat(width));
}

void ContextPrivatePolygonOffset(PrivateState *privateState,
                                 PrivateStateCache *privateStateCache,
                                 GLfloat factor,
                                 GLfloat units)
{
    privateState->setPolygonOffsetParams(factor, units, 0.0f);
}

void ContextPrivatePolygonOffsetClamp(PrivateState *privateState,
                                      PrivateStateCache *privateStateCache,
                                      GLfloat factor,
                                      GLfloat units,
                                      GLfloat clamp)
{
    privateState->setPolygonOffsetParams(factor, units, clamp);
}

void ContextPrivatePolygonOffsetx(PrivateState *privateState,
                                  PrivateStateCache *privateStateCache,
                                  GLfixed factor,
                                  GLfixed units)
{
    ContextPrivatePolygonOffsetClamp(privateState, privateStateCache, ConvertFixedToFloat(factor),
                                     ConvertFixedToFloat(units), 0.0f);
}

void ContextPrivateSampleCoverage(PrivateState *privateState,
                                  PrivateStateCache *privateStateCache,
                                  GLfloat value,
                                  GLboolean invert)
{
    privateState->setSampleCoverageParams(clamp01(value), ConvertToBool(invert));
}

void ContextPrivateSampleCoveragex(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLclampx value,
                                   GLboolean invert)
{
    ContextPrivateSampleCoverage(privateState, privateStateCache, ConvertFixedToFloat(value),
                                 invert);
}

void ContextPrivateScissor(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           GLint x,
                           GLint y,
                           GLsizei width,
                           GLsizei height)
{
    privateState->setScissorParams(x, y, width, height);
}

void ContextPrivateVertexAttrib1f(PrivateState *privateState,
                                  PrivateStateCache *privateStateCache,
                                  GLuint index,
                                  GLfloat x)
{
    GLfloat vals[4] = {x, 0, 0, 1};
    privateState->setVertexAttribf(index, vals);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttrib1fv(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLuint index,
                                   const GLfloat *values)
{
    GLfloat vals[4] = {values[0], 0, 0, 1};
    privateState->setVertexAttribf(index, vals);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttrib2f(PrivateState *privateState,
                                  PrivateStateCache *privateStateCache,
                                  GLuint index,
                                  GLfloat x,
                                  GLfloat y)
{
    GLfloat vals[4] = {x, y, 0, 1};
    privateState->setVertexAttribf(index, vals);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttrib2fv(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLuint index,
                                   const GLfloat *values)
{
    GLfloat vals[4] = {values[0], values[1], 0, 1};
    privateState->setVertexAttribf(index, vals);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttrib3f(PrivateState *privateState,
                                  PrivateStateCache *privateStateCache,
                                  GLuint index,
                                  GLfloat x,
                                  GLfloat y,
                                  GLfloat z)
{
    GLfloat vals[4] = {x, y, z, 1};
    privateState->setVertexAttribf(index, vals);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttrib3fv(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLuint index,
                                   const GLfloat *values)
{
    GLfloat vals[4] = {values[0], values[1], values[2], 1};
    privateState->setVertexAttribf(index, vals);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttrib4f(PrivateState *privateState,
                                  PrivateStateCache *privateStateCache,
                                  GLuint index,
                                  GLfloat x,
                                  GLfloat y,
                                  GLfloat z,
                                  GLfloat w)
{
    GLfloat vals[4] = {x, y, z, w};
    privateState->setVertexAttribf(index, vals);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttrib4fv(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLuint index,
                                   const GLfloat *values)
{
    privateState->setVertexAttribf(index, values);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttribI4i(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLuint index,
                                   GLint x,
                                   GLint y,
                                   GLint z,
                                   GLint w)
{
    GLint vals[4] = {x, y, z, w};
    privateState->setVertexAttribi(index, vals);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttribI4iv(PrivateState *privateState,
                                    PrivateStateCache *privateStateCache,
                                    GLuint index,
                                    const GLint *values)
{
    privateState->setVertexAttribi(index, values);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttribI4ui(PrivateState *privateState,
                                    PrivateStateCache *privateStateCache,
                                    GLuint index,
                                    GLuint x,
                                    GLuint y,
                                    GLuint z,
                                    GLuint w)
{
    GLuint vals[4] = {x, y, z, w};
    privateState->setVertexAttribu(index, vals);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateVertexAttribI4uiv(PrivateState *privateState,
                                     PrivateStateCache *privateStateCache,
                                     GLuint index,
                                     const GLuint *values)
{
    privateState->setVertexAttribu(index, values);
    privateStateCache->onDefaultVertexAttributeChange();
}

void ContextPrivateViewport(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            GLint x,
                            GLint y,
                            GLsizei width,
                            GLsizei height)
{
    privateState->setViewportParams(x, y, width, height);
}

void ContextPrivateSampleMaski(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLuint maskNumber,
                               GLbitfield mask)
{
    privateState->setSampleMaskParams(maskNumber, mask);
}

void ContextPrivateMinSampleShading(PrivateState *privateState,
                                    PrivateStateCache *privateStateCache,
                                    GLfloat value)
{
    privateState->setMinSampleShading(value);
}

void ContextPrivatePrimitiveBoundingBox(PrivateState *privateState,
                                        PrivateStateCache *privateStateCache,
                                        GLfloat minX,
                                        GLfloat minY,
                                        GLfloat minZ,
                                        GLfloat minW,
                                        GLfloat maxX,
                                        GLfloat maxY,
                                        GLfloat maxZ,
                                        GLfloat maxW)
{
    privateState->setBoundingBox(minX, minY, minZ, minW, maxX, maxY, maxZ, maxW);
}

void ContextPrivateLogicOp(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           LogicalOperation opcode)
{
    privateState->getMutableGLES1State()->setLogicOp(opcode);
}

void ContextPrivateLogicOpANGLE(PrivateState *privateState,
                                PrivateStateCache *privateStateCache,
                                LogicalOperation opcode)
{
    privateState->setLogicOp(opcode);
}

void ContextPrivatePolygonMode(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLenum face,
                               PolygonMode mode)
{
    ASSERT(face == GL_FRONT_AND_BACK);
    privateState->setPolygonMode(mode);
}

void ContextPrivatePolygonModeNV(PrivateState *privateState,
                                 PrivateStateCache *privateStateCache,
                                 GLenum face,
                                 PolygonMode mode)
{
    ContextPrivatePolygonMode(privateState, privateStateCache, face, mode);
}

void ContextPrivateProvokingVertex(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   ProvokingVertexConvention provokeMode)
{
    privateState->setProvokingVertex(provokeMode);
}

void ContextPrivateCoverageModulation(PrivateState *privateState,
                                      PrivateStateCache *privateStateCache,
                                      GLenum components)
{
    privateState->setCoverageModulation(components);
}

void ContextPrivateClipControl(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               ClipOrigin origin,
                               ClipDepthMode depth)
{
    privateState->setClipControl(origin, depth);
}

void ContextPrivateShadingRate(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLenum rate)
{
    privateState->setShadingRate(rate);
}

void ContextPrivateBlendColor(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLfloat red,
                              GLfloat green,
                              GLfloat blue,
                              GLfloat alpha)
{
    privateState->setBlendColor(red, green, blue, alpha);
}

void ContextPrivateBlendEquation(PrivateState *privateState,
                                 PrivateStateCache *privateStateCache,
                                 GLenum mode)
{
    privateState->setBlendEquation(mode, mode);
    if (privateState->getExtensions().blendEquationAdvancedKHR)
    {
        privateStateCache->onBlendEquationOrFuncChange();
    }
}

void ContextPrivateBlendEquationi(PrivateState *privateState,
                                  PrivateStateCache *privateStateCache,
                                  GLuint buf,
                                  GLenum mode)
{
    privateState->setBlendEquationIndexed(mode, mode, buf);
    if (privateState->getExtensions().blendEquationAdvancedKHR)
    {
        privateStateCache->onBlendEquationOrFuncChange();
    }
}

void ContextPrivateBlendEquationSeparate(PrivateState *privateState,
                                         PrivateStateCache *privateStateCache,
                                         GLenum modeRGB,
                                         GLenum modeAlpha)
{
    privateState->setBlendEquation(modeRGB, modeAlpha);
    if (privateState->getExtensions().blendEquationAdvancedKHR)
    {
        privateStateCache->onBlendEquationOrFuncChange();
    }
}

void ContextPrivateBlendEquationSeparatei(PrivateState *privateState,
                                          PrivateStateCache *privateStateCache,
                                          GLuint buf,
                                          GLenum modeRGB,
                                          GLenum modeAlpha)
{
    privateState->setBlendEquationIndexed(modeRGB, modeAlpha, buf);
    if (privateState->getExtensions().blendEquationAdvancedKHR)
    {
        privateStateCache->onBlendEquationOrFuncChange();
    }
}

void ContextPrivateBlendFunc(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLenum sfactor,
                             GLenum dfactor)
{
    privateState->setBlendFactors(sfactor, dfactor, sfactor, dfactor);
    if (privateState->getExtensions().blendFuncExtendedEXT)
    {
        privateStateCache->onBlendEquationOrFuncChange();
    }
}

void ContextPrivateBlendFunci(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLuint buf,
                              GLenum src,
                              GLenum dst)
{
    privateState->setBlendFactorsIndexed(src, dst, src, dst, buf);
    if (privateState->noSimultaneousConstantColorAndAlphaBlendFunc() ||
        privateState->getExtensions().blendFuncExtendedEXT)
    {
        privateStateCache->onBlendEquationOrFuncChange();
    }
}

void ContextPrivateBlendFuncSeparate(PrivateState *privateState,
                                     PrivateStateCache *privateStateCache,
                                     GLenum srcRGB,
                                     GLenum dstRGB,
                                     GLenum srcAlpha,
                                     GLenum dstAlpha)
{
    privateState->setBlendFactors(srcRGB, dstRGB, srcAlpha, dstAlpha);
    if (privateState->getExtensions().blendFuncExtendedEXT)
    {
        privateStateCache->onBlendEquationOrFuncChange();
    }
}

void ContextPrivateBlendFuncSeparatei(PrivateState *privateState,
                                      PrivateStateCache *privateStateCache,
                                      GLuint buf,
                                      GLenum srcRGB,
                                      GLenum dstRGB,
                                      GLenum srcAlpha,
                                      GLenum dstAlpha)
{
    privateState->setBlendFactorsIndexed(srcRGB, dstRGB, srcAlpha, dstAlpha, buf);
    if (privateState->noSimultaneousConstantColorAndAlphaBlendFunc() ||
        privateState->getExtensions().blendFuncExtendedEXT)
    {
        privateStateCache->onBlendEquationOrFuncChange();
    }
}

void ContextPrivateStencilFunc(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLenum func,
                               GLint ref,
                               GLuint mask)
{
    ContextPrivateStencilFuncSeparate(privateState, privateStateCache, GL_FRONT_AND_BACK, func, ref,
                                      mask);
}

void ContextPrivateStencilFuncSeparate(PrivateState *privateState,
                                       PrivateStateCache *privateStateCache,
                                       GLenum face,
                                       GLenum func,
                                       GLint ref,
                                       GLuint mask)
{
    GLint clampedRef = gl::clamp(ref, 0, std::numeric_limits<uint8_t>::max());
    if (face == GL_FRONT || face == GL_FRONT_AND_BACK)
    {
        privateState->setStencilParams(func, clampedRef, mask);
    }

    if (face == GL_BACK || face == GL_FRONT_AND_BACK)
    {
        privateState->setStencilBackParams(func, clampedRef, mask);
    }

    privateStateCache->onStencilStateChange();
}

void ContextPrivateStencilMask(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLuint mask)
{
    ContextPrivateStencilMaskSeparate(privateState, privateStateCache, GL_FRONT_AND_BACK, mask);
}

void ContextPrivateStencilMaskSeparate(PrivateState *privateState,
                                       PrivateStateCache *privateStateCache,
                                       GLenum face,
                                       GLuint mask)
{
    if (face == GL_FRONT || face == GL_FRONT_AND_BACK)
    {
        privateState->setStencilWritemask(mask);
    }

    if (face == GL_BACK || face == GL_FRONT_AND_BACK)
    {
        privateState->setStencilBackWritemask(mask);
    }

    privateStateCache->onStencilStateChange();
}

void ContextPrivateStencilOp(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLenum fail,
                             GLenum zfail,
                             GLenum zpass)
{
    ContextPrivateStencilOpSeparate(privateState, privateStateCache, GL_FRONT_AND_BACK, fail, zfail,
                                    zpass);
}

void ContextPrivateStencilOpSeparate(PrivateState *privateState,
                                     PrivateStateCache *privateStateCache,
                                     GLenum face,
                                     GLenum fail,
                                     GLenum zfail,
                                     GLenum zpass)
{
    if (face == GL_FRONT || face == GL_FRONT_AND_BACK)
    {
        privateState->setStencilOperations(fail, zfail, zpass);
    }

    if (face == GL_BACK || face == GL_FRONT_AND_BACK)
    {
        privateState->setStencilBackOperations(fail, zfail, zpass);
    }
}

void ContextPrivatePixelStorei(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLenum pname,
                               GLint param)
{
    switch (pname)
    {
        case GL_UNPACK_ALIGNMENT:
            privateState->setUnpackAlignment(param);
            break;

        case GL_PACK_ALIGNMENT:
            privateState->setPackAlignment(param);
            break;

        case GL_PACK_REVERSE_ROW_ORDER_ANGLE:
            privateState->setPackReverseRowOrder(param != 0);
            break;

        case GL_UNPACK_ROW_LENGTH:
            ASSERT(privateState->getClientMajorVersion() >= 3 ||
                   privateState->getExtensions().unpackSubimageEXT);
            privateState->setUnpackRowLength(param);
            break;

        case GL_UNPACK_IMAGE_HEIGHT:
            ASSERT(privateState->getClientMajorVersion() >= 3);
            privateState->setUnpackImageHeight(param);
            break;

        case GL_UNPACK_SKIP_IMAGES:
            ASSERT(privateState->getClientMajorVersion() >= 3);
            privateState->setUnpackSkipImages(param);
            break;

        case GL_UNPACK_SKIP_ROWS:
            ASSERT((privateState->getClientMajorVersion() >= 3) ||
                   privateState->getExtensions().unpackSubimageEXT);
            privateState->setUnpackSkipRows(param);
            break;

        case GL_UNPACK_SKIP_PIXELS:
            ASSERT((privateState->getClientMajorVersion() >= 3) ||
                   privateState->getExtensions().unpackSubimageEXT);
            privateState->setUnpackSkipPixels(param);
            break;

        case GL_PACK_ROW_LENGTH:
            ASSERT((privateState->getClientMajorVersion() >= 3) ||
                   privateState->getExtensions().packSubimageNV);
            privateState->setPackRowLength(param);
            break;

        case GL_PACK_SKIP_ROWS:
            ASSERT((privateState->getClientMajorVersion() >= 3) ||
                   privateState->getExtensions().packSubimageNV);
            privateState->setPackSkipRows(param);
            break;

        case GL_PACK_SKIP_PIXELS:
            ASSERT((privateState->getClientMajorVersion() >= 3) ||
                   privateState->getExtensions().packSubimageNV);
            privateState->setPackSkipPixels(param);
            break;

        default:
            UNREACHABLE();
            return;
    }
}

void ContextPrivateHint(PrivateState *privateState,
                        PrivateStateCache *privateStateCache,
                        GLenum target,
                        GLenum mode)
{
    switch (target)
    {
        case GL_GENERATE_MIPMAP_HINT:
            privateState->setGenerateMipmapHint(mode);
            break;

        case GL_FRAGMENT_SHADER_DERIVATIVE_HINT_OES:
            privateState->setFragmentShaderDerivativeHint(mode);
            break;

        case GL_PERSPECTIVE_CORRECTION_HINT:
        case GL_POINT_SMOOTH_HINT:
        case GL_LINE_SMOOTH_HINT:
        case GL_FOG_HINT:
            privateState->getMutableGLES1State()->setHint(target, mode);
            break;
        default:
            UNREACHABLE();
            return;
    }
}

GLboolean ContextPrivateIsEnabled(PrivateState *privateState,
                                  PrivateStateCache *privateStateCache,
                                  GLenum cap)
{
    return privateState->getEnableFeature(cap);
}

GLboolean ContextPrivateIsEnabledi(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLenum target,
                                   GLuint index)
{
    return privateState->getEnableFeatureIndexed(target, index);
}

void ContextPrivatePatchParameteri(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLenum pname,
                                   GLint value)
{
    switch (pname)
    {
        case GL_PATCH_VERTICES:
            privateState->setPatchVertices(value);
            break;
        default:
            break;
    }
}

void ContextPrivateAlphaFunc(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             AlphaTestFunc func,
                             GLfloat ref)
{
    privateState->getMutableGLES1State()->setAlphaTestParameters(func, ref);
}

void ContextPrivateAlphaFuncx(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              AlphaTestFunc func,
                              GLfixed ref)
{
    ContextPrivateAlphaFunc(privateState, privateStateCache, func, ConvertFixedToFloat(ref));
}

void ContextPrivateClipPlanef(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLenum p,
                              const GLfloat *eqn)
{
    privateState->getMutableGLES1State()->setClipPlane(p - GL_CLIP_PLANE0, eqn);
}

void ContextPrivateClipPlanex(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLenum plane,
                              const GLfixed *equation)
{
    const GLfloat equationf[4] = {
        ConvertFixedToFloat(equation[0]),
        ConvertFixedToFloat(equation[1]),
        ConvertFixedToFloat(equation[2]),
        ConvertFixedToFloat(equation[3]),
    };

    ContextPrivateClipPlanef(privateState, privateStateCache, plane, equationf);
}

void ContextPrivateColor4f(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           GLfloat red,
                           GLfloat green,
                           GLfloat blue,
                           GLfloat alpha)
{
    privateState->getMutableGLES1State()->setCurrentColor({red, green, blue, alpha});
}

void ContextPrivateColor4ub(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            GLubyte red,
                            GLubyte green,
                            GLubyte blue,
                            GLubyte alpha)
{
    ContextPrivateColor4f(privateState, privateStateCache, normalizedToFloat<uint8_t>(red),
                          normalizedToFloat<uint8_t>(green), normalizedToFloat<uint8_t>(blue),
                          normalizedToFloat<uint8_t>(alpha));
}

void ContextPrivateColor4x(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           GLfixed red,
                           GLfixed green,
                           GLfixed blue,
                           GLfixed alpha)
{
    ContextPrivateColor4f(privateState, privateStateCache, ConvertFixedToFloat(red),
                          ConvertFixedToFloat(green), ConvertFixedToFloat(blue),
                          ConvertFixedToFloat(alpha));
}

void ContextPrivateFogf(PrivateState *privateState,
                        PrivateStateCache *privateStateCache,
                        GLenum pname,
                        GLfloat param)
{
    ContextPrivateFogfv(privateState, privateStateCache, pname, &param);
}

void ContextPrivateFogfv(PrivateState *privateState,
                         PrivateStateCache *privateStateCache,
                         GLenum pname,
                         const GLfloat *params)
{
    SetFogParameters(privateState->getMutableGLES1State(), pname, params);
}

void ContextPrivateFogx(PrivateState *privateState,
                        PrivateStateCache *privateStateCache,
                        GLenum pname,
                        GLfixed param)
{
    if (GetFogParameterCount(pname) == 1)
    {
        GLfloat paramf = pname == GL_FOG_MODE ? ConvertToGLenum(param) : ConvertFixedToFloat(param);
        ContextPrivateFogfv(privateState, privateStateCache, pname, &paramf);
    }
    else
    {
        UNREACHABLE();
    }
}

void ContextPrivateFogxv(PrivateState *privateState,
                         PrivateStateCache *privateStateCache,
                         GLenum pname,
                         const GLfixed *params)
{
    int paramCount = GetFogParameterCount(pname);

    if (paramCount > 0)
    {
        GLfloat paramsf[4];
        for (int i = 0; i < paramCount; i++)
        {
            paramsf[i] =
                pname == GL_FOG_MODE ? ConvertToGLenum(params[i]) : ConvertFixedToFloat(params[i]);
        }
        ContextPrivateFogfv(privateState, privateStateCache, pname, paramsf);
    }
    else
    {
        UNREACHABLE();
    }
}

void ContextPrivateFrustumf(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            GLfloat l,
                            GLfloat r,
                            GLfloat b,
                            GLfloat t,
                            GLfloat n,
                            GLfloat f)
{
    privateState->getMutableGLES1State()->multMatrix(angle::Mat4::Frustum(l, r, b, t, n, f));
}

void ContextPrivateFrustumx(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            GLfixed l,
                            GLfixed r,
                            GLfixed b,
                            GLfixed t,
                            GLfixed n,
                            GLfixed f)
{
    ContextPrivateFrustumf(privateState, privateStateCache, ConvertFixedToFloat(l),
                           ConvertFixedToFloat(r), ConvertFixedToFloat(b), ConvertFixedToFloat(t),
                           ConvertFixedToFloat(n), ConvertFixedToFloat(f));
}

void ContextPrivateGetClipPlanef(PrivateState *privateState,
                                 PrivateStateCache *privateStateCache,
                                 GLenum plane,
                                 GLfloat *equation)
{
    privateState->gles1().getClipPlane(plane - GL_CLIP_PLANE0, equation);
}

void ContextPrivateGetClipPlanex(PrivateState *privateState,
                                 PrivateStateCache *privateStateCache,
                                 GLenum plane,
                                 GLfixed *equation)
{
    GLfloat equationf[4] = {};

    ContextPrivateGetClipPlanef(privateState, privateStateCache, plane, equationf);

    for (int i = 0; i < 4; i++)
    {
        equation[i] = ConvertFloatToFixed(equationf[i]);
    }
}

void ContextPrivateGetLightfv(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLenum light,
                              LightParameter pname,
                              GLfloat *params)
{
    GetLightParameters(privateState->getMutableGLES1State(), light, pname, params);
}

void ContextPrivateGetLightxv(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLenum light,
                              LightParameter pname,
                              GLfixed *params)
{
    GLfloat paramsf[4];
    ContextPrivateGetLightfv(privateState, privateStateCache, light, pname, paramsf);

    for (unsigned int i = 0; i < GetLightParameterCount(pname); i++)
    {
        params[i] = ConvertFloatToFixed(paramsf[i]);
    }
}

void ContextPrivateGetMaterialfv(PrivateState *privateState,
                                 PrivateStateCache *privateStateCache,
                                 GLenum face,
                                 MaterialParameter pname,
                                 GLfloat *params)
{
    GetMaterialParameters(privateState->getMutableGLES1State(), face, pname, params);
}

void ContextPrivateGetMaterialxv(PrivateState *privateState,
                                 PrivateStateCache *privateStateCache,
                                 GLenum face,
                                 MaterialParameter pname,
                                 GLfixed *params)
{
    GLfloat paramsf[4];
    ContextPrivateGetMaterialfv(privateState, privateStateCache, face, pname, paramsf);

    for (unsigned int i = 0; i < GetMaterialParameterCount(pname); i++)
    {
        params[i] = ConvertFloatToFixed(paramsf[i]);
    }
}

void ContextPrivateGetTexEnvfv(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               TextureEnvTarget target,
                               TextureEnvParameter pname,
                               GLfloat *params)
{
    GetTextureEnv(privateState->getActiveSampler(), privateState->getMutableGLES1State(), target,
                  pname, params);
}

void ContextPrivateGetTexEnviv(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               TextureEnvTarget target,
                               TextureEnvParameter pname,
                               GLint *params)
{
    GLfloat paramsf[4];
    ContextPrivateGetTexEnvfv(privateState, privateStateCache, target, pname, paramsf);
    ConvertTextureEnvToInt(pname, paramsf, params);
}

void ContextPrivateGetTexEnvxv(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               TextureEnvTarget target,
                               TextureEnvParameter pname,
                               GLfixed *params)
{
    GLfloat paramsf[4];
    ContextPrivateGetTexEnvfv(privateState, privateStateCache, target, pname, paramsf);
    ConvertTextureEnvToFixed(pname, paramsf, params);
}

void ContextPrivateLightModelf(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLenum pname,
                               GLfloat param)
{
    ContextPrivateLightModelfv(privateState, privateStateCache, pname, &param);
}

void ContextPrivateLightModelfv(PrivateState *privateState,
                                PrivateStateCache *privateStateCache,
                                GLenum pname,
                                const GLfloat *params)
{
    SetLightModelParameters(privateState->getMutableGLES1State(), pname, params);
}

void ContextPrivateLightModelx(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               GLenum pname,
                               GLfixed param)
{
    ContextPrivateLightModelf(privateState, privateStateCache, pname, ConvertFixedToFloat(param));
}

void ContextPrivateLightModelxv(PrivateState *privateState,
                                PrivateStateCache *privateStateCache,
                                GLenum pname,
                                const GLfixed *param)
{
    GLfloat paramsf[4];

    for (unsigned int i = 0; i < GetLightModelParameterCount(pname); i++)
    {
        paramsf[i] = ConvertFixedToFloat(param[i]);
    }

    ContextPrivateLightModelfv(privateState, privateStateCache, pname, paramsf);
}

void ContextPrivateLightf(PrivateState *privateState,
                          PrivateStateCache *privateStateCache,
                          GLenum light,
                          LightParameter pname,
                          GLfloat param)
{
    ContextPrivateLightfv(privateState, privateStateCache, light, pname, &param);
}

void ContextPrivateLightfv(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           GLenum light,
                           LightParameter pname,
                           const GLfloat *params)
{
    SetLightParameters(privateState->getMutableGLES1State(), light, pname, params);
}

void ContextPrivateLightx(PrivateState *privateState,
                          PrivateStateCache *privateStateCache,
                          GLenum light,
                          LightParameter pname,
                          GLfixed param)
{
    ContextPrivateLightf(privateState, privateStateCache, light, pname, ConvertFixedToFloat(param));
}

void ContextPrivateLightxv(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           GLenum light,
                           LightParameter pname,
                           const GLfixed *params)
{
    GLfloat paramsf[4];

    for (unsigned int i = 0; i < GetLightParameterCount(pname); i++)
    {
        paramsf[i] = ConvertFixedToFloat(params[i]);
    }

    ContextPrivateLightfv(privateState, privateStateCache, light, pname, paramsf);
}

void ContextPrivateLoadIdentity(PrivateState *privateState, PrivateStateCache *privateStateCache)
{
    privateState->getMutableGLES1State()->loadMatrix(angle::Mat4());
}

void ContextPrivateLoadMatrixf(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               const GLfloat *m)
{
    privateState->getMutableGLES1State()->loadMatrix(angle::Mat4(m));
}

void ContextPrivateLoadMatrixx(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               const GLfixed *m)
{
    privateState->getMutableGLES1State()->loadMatrix(FixedMatrixToMat4(m));
}

void ContextPrivateMaterialf(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLenum face,
                             MaterialParameter pname,
                             GLfloat param)
{
    ContextPrivateMaterialfv(privateState, privateStateCache, face, pname, &param);
}

void ContextPrivateMaterialfv(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLenum face,
                              MaterialParameter pname,
                              const GLfloat *params)
{
    SetMaterialParameters(privateState->getMutableGLES1State(), face, pname, params);
}

void ContextPrivateMaterialx(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLenum face,
                             MaterialParameter pname,
                             GLfixed param)
{
    ContextPrivateMaterialf(privateState, privateStateCache, face, pname,
                            ConvertFixedToFloat(param));
}

void ContextPrivateMaterialxv(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLenum face,
                              MaterialParameter pname,
                              const GLfixed *param)
{
    GLfloat paramsf[4];

    for (unsigned int i = 0; i < GetMaterialParameterCount(pname); i++)
    {
        paramsf[i] = ConvertFixedToFloat(param[i]);
    }

    ContextPrivateMaterialfv(privateState, privateStateCache, face, pname, paramsf);
}

void ContextPrivateMatrixMode(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              MatrixType mode)
{
    privateState->getMutableGLES1State()->setMatrixMode(mode);
}

void ContextPrivateMultMatrixf(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               const GLfloat *m)
{
    privateState->getMutableGLES1State()->multMatrix(angle::Mat4(m));
}

void ContextPrivateMultMatrixx(PrivateState *privateState,
                               PrivateStateCache *privateStateCache,
                               const GLfixed *m)
{
    privateState->getMutableGLES1State()->multMatrix(FixedMatrixToMat4(m));
}

void ContextPrivateMultiTexCoord4f(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLenum target,
                                   GLfloat s,
                                   GLfloat t,
                                   GLfloat r,
                                   GLfloat q)
{
    unsigned int unit = target - GL_TEXTURE0;
    ASSERT(target >= GL_TEXTURE0 && unit < privateState->getCaps().maxMultitextureUnits);
    privateState->getMutableGLES1State()->setCurrentTextureCoords(unit, {s, t, r, q});
}

void ContextPrivateMultiTexCoord4x(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   GLenum texture,
                                   GLfixed s,
                                   GLfixed t,
                                   GLfixed r,
                                   GLfixed q)
{
    ContextPrivateMultiTexCoord4f(privateState, privateStateCache, texture, ConvertFixedToFloat(s),
                                  ConvertFixedToFloat(t), ConvertFixedToFloat(r),
                                  ConvertFixedToFloat(q));
}

void ContextPrivateNormal3f(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            GLfloat nx,
                            GLfloat ny,
                            GLfloat nz)
{
    privateState->getMutableGLES1State()->setCurrentNormal({nx, ny, nz});
}

void ContextPrivateNormal3x(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            GLfixed nx,
                            GLfixed ny,
                            GLfixed nz)
{
    ContextPrivateNormal3f(privateState, privateStateCache, ConvertFixedToFloat(nx),
                           ConvertFixedToFloat(ny), ConvertFixedToFloat(nz));
}

void ContextPrivateOrthof(PrivateState *privateState,
                          PrivateStateCache *privateStateCache,
                          GLfloat left,
                          GLfloat right,
                          GLfloat bottom,
                          GLfloat top,
                          GLfloat zNear,
                          GLfloat zFar)
{
    privateState->getMutableGLES1State()->multMatrix(
        angle::Mat4::Ortho(left, right, bottom, top, zNear, zFar));
}

void ContextPrivateOrthox(PrivateState *privateState,
                          PrivateStateCache *privateStateCache,
                          GLfixed left,
                          GLfixed right,
                          GLfixed bottom,
                          GLfixed top,
                          GLfixed zNear,
                          GLfixed zFar)
{
    ContextPrivateOrthof(privateState, privateStateCache, ConvertFixedToFloat(left),
                         ConvertFixedToFloat(right), ConvertFixedToFloat(bottom),
                         ConvertFixedToFloat(top), ConvertFixedToFloat(zNear),
                         ConvertFixedToFloat(zFar));
}

void ContextPrivatePointParameterf(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   PointParameter pname,
                                   GLfloat param)
{
    ContextPrivatePointParameterfv(privateState, privateStateCache, pname, &param);
}

void ContextPrivatePointParameterfv(PrivateState *privateState,
                                    PrivateStateCache *privateStateCache,
                                    PointParameter pname,
                                    const GLfloat *params)
{
    SetPointParameter(privateState->getMutableGLES1State(), pname, params);
}

void ContextPrivatePointParameterx(PrivateState *privateState,
                                   PrivateStateCache *privateStateCache,
                                   PointParameter pname,
                                   GLfixed param)
{
    ContextPrivatePointParameterf(privateState, privateStateCache, pname,
                                  ConvertFixedToFloat(param));
}

void ContextPrivatePointParameterxv(PrivateState *privateState,
                                    PrivateStateCache *privateStateCache,
                                    PointParameter pname,
                                    const GLfixed *params)
{
    GLfloat paramsf[4] = {};
    for (unsigned int i = 0; i < GetPointParameterCount(pname); i++)
    {
        paramsf[i] = ConvertFixedToFloat(params[i]);
    }
    ContextPrivatePointParameterfv(privateState, privateStateCache, pname, paramsf);
}

void ContextPrivatePointSize(PrivateState *privateState,
                             PrivateStateCache *privateStateCache,
                             GLfloat size)
{
    SetPointSize(privateState->getMutableGLES1State(), size);
}

void ContextPrivatePointSizex(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLfixed size)
{
    ContextPrivatePointSize(privateState, privateStateCache, ConvertFixedToFloat(size));
}

void ContextPrivatePopMatrix(PrivateState *privateState, PrivateStateCache *privateStateCache)
{
    privateState->getMutableGLES1State()->popMatrix();
}

void ContextPrivatePushMatrix(PrivateState *privateState, PrivateStateCache *privateStateCache)
{
    privateState->getMutableGLES1State()->pushMatrix();
}

void ContextPrivateRotatef(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           GLfloat angle,
                           GLfloat x,
                           GLfloat y,
                           GLfloat z)
{
    privateState->getMutableGLES1State()->multMatrix(
        angle::Mat4::Rotate(angle, angle::Vector3(x, y, z)));
}

void ContextPrivateRotatex(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           GLfixed angle,
                           GLfixed x,
                           GLfixed y,
                           GLfixed z)
{
    ContextPrivateRotatef(privateState, privateStateCache, ConvertFixedToFloat(angle),
                          ConvertFixedToFloat(x), ConvertFixedToFloat(y), ConvertFixedToFloat(z));
}

void ContextPrivateScalef(PrivateState *privateState,
                          PrivateStateCache *privateStateCache,
                          GLfloat x,
                          GLfloat y,
                          GLfloat z)
{
    privateState->getMutableGLES1State()->multMatrix(angle::Mat4::Scale(angle::Vector3(x, y, z)));
}

void ContextPrivateScalex(PrivateState *privateState,
                          PrivateStateCache *privateStateCache,
                          GLfixed x,
                          GLfixed y,
                          GLfixed z)
{
    ContextPrivateScalef(privateState, privateStateCache, ConvertFixedToFloat(x),
                         ConvertFixedToFloat(y), ConvertFixedToFloat(z));
}

void ContextPrivateShadeModel(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              ShadingModel model)
{
    privateState->getMutableGLES1State()->setShadeModel(model);
}

void ContextPrivateTexEnvf(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           TextureEnvTarget target,
                           TextureEnvParameter pname,
                           GLfloat param)
{
    ContextPrivateTexEnvfv(privateState, privateStateCache, target, pname, &param);
}

void ContextPrivateTexEnvfv(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            TextureEnvTarget target,
                            TextureEnvParameter pname,
                            const GLfloat *params)
{
    SetTextureEnv(privateState->getActiveSampler(), privateState->getMutableGLES1State(), target,
                  pname, params);
}

void ContextPrivateTexEnvi(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           TextureEnvTarget target,
                           TextureEnvParameter pname,
                           GLint param)
{
    ContextPrivateTexEnviv(privateState, privateStateCache, target, pname, &param);
}

void ContextPrivateTexEnviv(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            TextureEnvTarget target,
                            TextureEnvParameter pname,
                            const GLint *params)
{
    GLfloat paramsf[4] = {};
    ConvertTextureEnvFromInt(pname, params, paramsf);
    ContextPrivateTexEnvfv(privateState, privateStateCache, target, pname, paramsf);
}

void ContextPrivateTexEnvx(PrivateState *privateState,
                           PrivateStateCache *privateStateCache,
                           TextureEnvTarget target,
                           TextureEnvParameter pname,
                           GLfixed param)
{
    ContextPrivateTexEnvxv(privateState, privateStateCache, target, pname, &param);
}

void ContextPrivateTexEnvxv(PrivateState *privateState,
                            PrivateStateCache *privateStateCache,
                            TextureEnvTarget target,
                            TextureEnvParameter pname,
                            const GLfixed *params)
{
    GLfloat paramsf[4] = {};
    ConvertTextureEnvFromFixed(pname, params, paramsf);
    ContextPrivateTexEnvfv(privateState, privateStateCache, target, pname, paramsf);
}

void ContextPrivateTranslatef(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLfloat x,
                              GLfloat y,
                              GLfloat z)
{
    privateState->getMutableGLES1State()->multMatrix(
        angle::Mat4::Translate(angle::Vector3(x, y, z)));
}

void ContextPrivateTranslatex(PrivateState *privateState,
                              PrivateStateCache *privateStateCache,
                              GLfixed x,
                              GLfixed y,
                              GLfixed z)
{
    ContextPrivateTranslatef(privateState, privateStateCache, ConvertFixedToFloat(x),
                             ConvertFixedToFloat(y), ConvertFixedToFloat(z));
}
}  // namespace gl