unsigned int GetBlendSampleMask(const gl::State &glState, int samples)
{
unsigned int mask = 0;
if (glState.isSampleCoverageEnabled())
{
GLfloat coverageValue = glState.getSampleCoverageValue();
if (coverageValue != 0)
{
float threshold = 0.5f;
for (int i = 0; i < samples; ++i)
{
mask <<= 1;
if ((i + 1) * coverageValue >= threshold)
{
threshold += 1.0f;
mask |= 1;
}
}
}
bool coverageInvert = glState.getSampleCoverageInvert();
if (coverageInvert)
{
mask = ~mask;
}
}
else
{
mask = 0xFFFFFFFF;
}
if (glState.isSampleMaskEnabled())
{
mask &= glState.getSampleMaskWord(0);
}
return mask;
}
void StateManagerGL::syncState(const gl::State &state, const gl::State::DirtyBits &dirtyBits)
{
// TODO(jmadill): Investigate only syncing vertex state for active attributes
for (auto dirtyBit : angle::IterateBitSet(dirtyBits | mLocalDirtyBits))
{
switch (dirtyBit)
{
case gl::State::DIRTY_BIT_SCISSOR_TEST_ENABLED:
setScissorTestEnabled(state.isScissorTestEnabled());
break;
case gl::State::DIRTY_BIT_SCISSOR:
setScissor(state.getScissor());
break;
case gl::State::DIRTY_BIT_VIEWPORT:
setViewport(state.getViewport());
break;
case gl::State::DIRTY_BIT_DEPTH_RANGE:
setDepthRange(state.getNearPlane(), state.getFarPlane());
break;
case gl::State::DIRTY_BIT_BLEND_ENABLED:
setBlendEnabled(state.isBlendEnabled());
break;
case gl::State::DIRTY_BIT_BLEND_COLOR:
setBlendColor(state.getBlendColor());
break;
case gl::State::DIRTY_BIT_BLEND_FUNCS:
{
const auto &blendState = state.getBlendState();
setBlendFuncs(blendState.sourceBlendRGB, blendState.destBlendRGB,
blendState.sourceBlendAlpha, blendState.destBlendAlpha);
break;
}
case gl::State::DIRTY_BIT_BLEND_EQUATIONS:
{
const auto &blendState = state.getBlendState();
setBlendEquations(blendState.blendEquationRGB, blendState.blendEquationAlpha);
break;
}
case gl::State::DIRTY_BIT_COLOR_MASK:
{
const auto &blendState = state.getBlendState();
setColorMask(blendState.colorMaskRed, blendState.colorMaskGreen,
blendState.colorMaskBlue, blendState.colorMaskAlpha);
break;
}
case gl::State::DIRTY_BIT_SAMPLE_ALPHA_TO_COVERAGE_ENABLED:
setSampleAlphaToCoverageEnabled(state.isSampleAlphaToCoverageEnabled());
break;
case gl::State::DIRTY_BIT_SAMPLE_COVERAGE_ENABLED:
setSampleCoverageEnabled(state.isSampleCoverageEnabled());
break;
case gl::State::DIRTY_BIT_SAMPLE_COVERAGE:
setSampleCoverage(state.getSampleCoverageValue(), state.getSampleCoverageInvert());
break;
case gl::State::DIRTY_BIT_DEPTH_TEST_ENABLED:
setDepthTestEnabled(state.isDepthTestEnabled());
break;
case gl::State::DIRTY_BIT_DEPTH_FUNC:
setDepthFunc(state.getDepthStencilState().depthFunc);
break;
case gl::State::DIRTY_BIT_DEPTH_MASK:
setDepthMask(state.getDepthStencilState().depthMask);
break;
case gl::State::DIRTY_BIT_STENCIL_TEST_ENABLED:
setStencilTestEnabled(state.isStencilTestEnabled());
break;
case gl::State::DIRTY_BIT_STENCIL_FUNCS_FRONT:
{
const auto &depthStencilState = state.getDepthStencilState();
setStencilFrontFuncs(depthStencilState.stencilFunc, state.getStencilRef(),
depthStencilState.stencilMask);
break;
}
case gl::State::DIRTY_BIT_STENCIL_FUNCS_BACK:
{
const auto &depthStencilState = state.getDepthStencilState();
setStencilBackFuncs(depthStencilState.stencilBackFunc, state.getStencilBackRef(),
depthStencilState.stencilBackMask);
break;
}
case gl::State::DIRTY_BIT_STENCIL_OPS_FRONT:
{
const auto &depthStencilState = state.getDepthStencilState();
setStencilFrontOps(depthStencilState.stencilFail,
depthStencilState.stencilPassDepthFail,
depthStencilState.stencilPassDepthPass);
break;
}
case gl::State::DIRTY_BIT_STENCIL_OPS_BACK:
{
const auto &depthStencilState = state.getDepthStencilState();
setStencilBackOps(depthStencilState.stencilBackFail,
depthStencilState.stencilBackPassDepthFail,
depthStencilState.stencilBackPassDepthPass);
break;
}
case gl::State::DIRTY_BIT_STENCIL_WRITEMASK_FRONT:
setStencilFrontWritemask(state.getDepthStencilState().stencilWritemask);
break;
case gl::State::DIRTY_BIT_STENCIL_WRITEMASK_BACK:
setStencilBackWritemask(state.getDepthStencilState().stencilBackWritemask);
break;
case gl::State::DIRTY_BIT_CULL_FACE_ENABLED:
setCullFaceEnabled(state.isCullFaceEnabled());
break;
case gl::State::DIRTY_BIT_CULL_FACE:
setCullFace(state.getRasterizerState().cullMode);
break;
case gl::State::DIRTY_BIT_FRONT_FACE:
setFrontFace(state.getRasterizerState().frontFace);
break;
case gl::State::DIRTY_BIT_POLYGON_OFFSET_FILL_ENABLED:
setPolygonOffsetFillEnabled(state.isPolygonOffsetFillEnabled());
break;
case gl::State::DIRTY_BIT_POLYGON_OFFSET:
{
const auto &rasterizerState = state.getRasterizerState();
setPolygonOffset(rasterizerState.polygonOffsetFactor,
rasterizerState.polygonOffsetUnits);
break;
}
case gl::State::DIRTY_BIT_RASTERIZER_DISCARD_ENABLED:
setRasterizerDiscardEnabled(state.isRasterizerDiscardEnabled());
break;
case gl::State::DIRTY_BIT_LINE_WIDTH:
setLineWidth(state.getLineWidth());
break;
case gl::State::DIRTY_BIT_PRIMITIVE_RESTART_ENABLED:
setPrimitiveRestartEnabled(state.isPrimitiveRestartEnabled());
break;
case gl::State::DIRTY_BIT_CLEAR_COLOR:
setClearColor(state.getColorClearValue());
break;
case gl::State::DIRTY_BIT_CLEAR_DEPTH:
setClearDepth(state.getDepthClearValue());
break;
case gl::State::DIRTY_BIT_CLEAR_STENCIL:
setClearStencil(state.getStencilClearValue());
break;
case gl::State::DIRTY_BIT_UNPACK_ALIGNMENT:
// TODO(jmadill): split this
setPixelUnpackState(state.getUnpackState());
break;
case gl::State::DIRTY_BIT_UNPACK_ROW_LENGTH:
// TODO(jmadill): split this
setPixelUnpackState(state.getUnpackState());
break;
case gl::State::DIRTY_BIT_UNPACK_IMAGE_HEIGHT:
// TODO(jmadill): split this
setPixelUnpackState(state.getUnpackState());
break;
case gl::State::DIRTY_BIT_UNPACK_SKIP_IMAGES:
// TODO(jmadill): split this
setPixelUnpackState(state.getUnpackState());
break;
case gl::State::DIRTY_BIT_UNPACK_SKIP_ROWS:
// TODO(jmadill): split this
setPixelUnpackState(state.getUnpackState());
break;
case gl::State::DIRTY_BIT_UNPACK_SKIP_PIXELS:
// TODO(jmadill): split this
setPixelUnpackState(state.getUnpackState());
break;
case gl::State::DIRTY_BIT_PACK_ALIGNMENT:
// TODO(jmadill): split this
setPixelPackState(state.getPackState());
break;
case gl::State::DIRTY_BIT_PACK_REVERSE_ROW_ORDER:
// TODO(jmadill): split this
setPixelPackState(state.getPackState());
break;
case gl::State::DIRTY_BIT_PACK_ROW_LENGTH:
// TODO(jmadill): split this
setPixelPackState(state.getPackState());
break;
case gl::State::DIRTY_BIT_PACK_SKIP_ROWS:
// TODO(jmadill): split this
setPixelPackState(state.getPackState());
break;
case gl::State::DIRTY_BIT_PACK_SKIP_PIXELS:
// TODO(jmadill): split this
setPixelPackState(state.getPackState());
break;
case gl::State::DIRTY_BIT_DITHER_ENABLED:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_GENERATE_MIPMAP_HINT:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_SHADER_DERIVATIVE_HINT:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_READ_FRAMEBUFFER_BINDING:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_READ_FRAMEBUFFER_OBJECT:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_DRAW_FRAMEBUFFER_BINDING:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_DRAW_FRAMEBUFFER_OBJECT:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_RENDERBUFFER_BINDING:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_VERTEX_ARRAY_BINDING:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_VERTEX_ARRAY_OBJECT:
state.getVertexArray()->syncImplState();
break;
case gl::State::DIRTY_BIT_PROGRAM_BINDING:
// TODO(jmadill): implement this
break;
case gl::State::DIRTY_BIT_PROGRAM_OBJECT:
// TODO(jmadill): implement this
break;
default:
{
ASSERT(dirtyBit >= gl::State::DIRTY_BIT_CURRENT_VALUE_0 &&
dirtyBit < gl::State::DIRTY_BIT_CURRENT_VALUE_MAX);
size_t attribIndex =
static_cast<size_t>(dirtyBit) - gl::State::DIRTY_BIT_CURRENT_VALUE_0;
setAttributeCurrentData(attribIndex, state.getVertexAttribCurrentValue(
static_cast<unsigned int>(attribIndex)));
break;
}
}
mLocalDirtyBits.reset();
}
}