void
WebGLContext::AssertCachedGlobalState()
{
#ifdef DEBUG
MakeContextCurrent();
GetAndFlushUnderlyingGLErrors();
////////////////
// Draw state
MOZ_ASSERT(gl->fIsEnabled(LOCAL_GL_DEPTH_TEST) == mDepthTestEnabled);
MOZ_ASSERT(gl->fIsEnabled(LOCAL_GL_DITHER) == mDitherEnabled);
MOZ_ASSERT_IF(IsWebGL2(),
gl->fIsEnabled(LOCAL_GL_RASTERIZER_DISCARD) == mRasterizerDiscardEnabled);
MOZ_ASSERT(gl->fIsEnabled(LOCAL_GL_SCISSOR_TEST) == mScissorTestEnabled);
MOZ_ASSERT(gl->fIsEnabled(LOCAL_GL_STENCIL_TEST) == mStencilTestEnabled);
realGLboolean colorWriteMask[4] = {0, 0, 0, 0};
gl->fGetBooleanv(LOCAL_GL_COLOR_WRITEMASK, colorWriteMask);
MOZ_ASSERT(colorWriteMask[0] == mColorWriteMask[0] &&
colorWriteMask[1] == mColorWriteMask[1] &&
colorWriteMask[2] == mColorWriteMask[2] &&
colorWriteMask[3] == mColorWriteMask[3]);
GLfloat colorClearValue[4] = {0.0f, 0.0f, 0.0f, 0.0f};
gl->fGetFloatv(LOCAL_GL_COLOR_CLEAR_VALUE, colorClearValue);
MOZ_ASSERT(IsCacheCorrect(mColorClearValue[0], colorClearValue[0]) &&
IsCacheCorrect(mColorClearValue[1], colorClearValue[1]) &&
IsCacheCorrect(mColorClearValue[2], colorClearValue[2]) &&
IsCacheCorrect(mColorClearValue[3], colorClearValue[3]));
realGLboolean depthWriteMask = 0;
gl->fGetBooleanv(LOCAL_GL_DEPTH_WRITEMASK, &depthWriteMask);
MOZ_ASSERT(depthWriteMask == mDepthWriteMask);
GLfloat depthClearValue = 0.0f;
gl->fGetFloatv(LOCAL_GL_DEPTH_CLEAR_VALUE, &depthClearValue);
MOZ_ASSERT(IsCacheCorrect(mDepthClearValue, depthClearValue));
AssertUintParamCorrect(gl, LOCAL_GL_STENCIL_CLEAR_VALUE, mStencilClearValue);
// GLES 3.0.4, $4.1.4, p177:
// [...] the front and back stencil mask are both set to the value `2^s - 1`, where
// `s` is greater than or equal to the number of bits in the deepest stencil buffer
// supported by the GL implementation.
const int maxStencilBits = 8;
const GLuint maxStencilBitsMask = (1 << maxStencilBits) - 1;
AssertMaskedUintParamCorrect(gl, LOCAL_GL_STENCIL_VALUE_MASK, maxStencilBitsMask, mStencilValueMaskFront);
AssertMaskedUintParamCorrect(gl, LOCAL_GL_STENCIL_BACK_VALUE_MASK, maxStencilBitsMask, mStencilValueMaskBack);
AssertMaskedUintParamCorrect(gl, LOCAL_GL_STENCIL_WRITEMASK, maxStencilBitsMask, mStencilWriteMaskFront);
AssertMaskedUintParamCorrect(gl, LOCAL_GL_STENCIL_BACK_WRITEMASK, maxStencilBitsMask, mStencilWriteMaskBack);
// Viewport
GLint int4[4] = {0, 0, 0, 0};
gl->fGetIntegerv(LOCAL_GL_VIEWPORT, int4);
MOZ_ASSERT(int4[0] == mViewportX &&
int4[1] == mViewportY &&
int4[2] == mViewportWidth &&
int4[3] == mViewportHeight);
AssertUintParamCorrect(gl, LOCAL_GL_PACK_ALIGNMENT, mPixelStore_PackAlignment);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_ALIGNMENT, mPixelStore_UnpackAlignment);
if (IsWebGL2()) {
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_IMAGE_HEIGHT, mPixelStore_UnpackImageHeight);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_SKIP_IMAGES , mPixelStore_UnpackSkipImages);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_ROW_LENGTH , mPixelStore_UnpackRowLength);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_SKIP_ROWS , mPixelStore_UnpackSkipRows);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_SKIP_PIXELS , mPixelStore_UnpackSkipPixels);
AssertUintParamCorrect(gl, LOCAL_GL_PACK_ROW_LENGTH , mPixelStore_PackRowLength);
AssertUintParamCorrect(gl, LOCAL_GL_PACK_SKIP_ROWS , mPixelStore_PackSkipRows);
AssertUintParamCorrect(gl, LOCAL_GL_PACK_SKIP_PIXELS , mPixelStore_PackSkipPixels);
}
MOZ_ASSERT(!GetAndFlushUnderlyingGLErrors());
#endif
}
void WebGLContext::AssertCachedGlobalState() const {
#ifdef DEBUG
gl::GLContext::LocalErrorScope errorScope(*gl);
////////////////
// Draw state
MOZ_ASSERT(gl->fIsEnabled(LOCAL_GL_DITHER) == mDitherEnabled);
MOZ_ASSERT_IF(IsWebGL2(), gl->fIsEnabled(LOCAL_GL_RASTERIZER_DISCARD) ==
mRasterizerDiscardEnabled);
MOZ_ASSERT(gl->fIsEnabled(LOCAL_GL_SCISSOR_TEST) == mScissorTestEnabled);
// Cannot trivially check COLOR_CLEAR_VALUE, since in old GL versions glGet
// may clamp based on whether the current framebuffer is floating-point or
// not. This also means COLOR_CLEAR_VALUE save+restore is dangerous!
realGLboolean depthWriteMask = 0;
gl->fGetBooleanv(LOCAL_GL_DEPTH_WRITEMASK, &depthWriteMask);
MOZ_ASSERT(depthWriteMask == mDepthWriteMask);
GLfloat depthClearValue = 0.0f;
gl->fGetFloatv(LOCAL_GL_DEPTH_CLEAR_VALUE, &depthClearValue);
MOZ_ASSERT(IsCacheCorrect(mDepthClearValue, depthClearValue));
const int maxStencilBits = 8;
const GLuint maxStencilBitsMask = (1 << maxStencilBits) - 1;
AssertMaskedUintParamCorrect(gl, LOCAL_GL_STENCIL_CLEAR_VALUE,
maxStencilBitsMask, mStencilClearValue);
// GLES 3.0.4, $4.1.4, p177:
// [...] the front and back stencil mask are both set to the value `2^s -
// 1`, where `s` is greater than or equal to the number of bits in the
// deepest stencil buffer supported by the GL implementation.
AssertMaskedUintParamCorrect(gl, LOCAL_GL_STENCIL_VALUE_MASK,
maxStencilBitsMask, mStencilValueMaskFront);
AssertMaskedUintParamCorrect(gl, LOCAL_GL_STENCIL_BACK_VALUE_MASK,
maxStencilBitsMask, mStencilValueMaskBack);
AssertMaskedUintParamCorrect(gl, LOCAL_GL_STENCIL_WRITEMASK,
maxStencilBitsMask, mStencilWriteMaskFront);
AssertMaskedUintParamCorrect(gl, LOCAL_GL_STENCIL_BACK_WRITEMASK,
maxStencilBitsMask, mStencilWriteMaskBack);
// Viewport
GLint int4[4] = {0, 0, 0, 0};
gl->fGetIntegerv(LOCAL_GL_VIEWPORT, int4);
MOZ_ASSERT(int4[0] == mViewportX && int4[1] == mViewportY &&
int4[2] == mViewportWidth && int4[3] == mViewportHeight);
AssertUintParamCorrect(gl, LOCAL_GL_PACK_ALIGNMENT,
mPixelStore_PackAlignment);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_ALIGNMENT,
mPixelStore_UnpackAlignment);
if (IsWebGL2()) {
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_IMAGE_HEIGHT,
mPixelStore_UnpackImageHeight);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_SKIP_IMAGES,
mPixelStore_UnpackSkipImages);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_ROW_LENGTH,
mPixelStore_UnpackRowLength);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_SKIP_ROWS,
mPixelStore_UnpackSkipRows);
AssertUintParamCorrect(gl, LOCAL_GL_UNPACK_SKIP_PIXELS,
mPixelStore_UnpackSkipPixels);
AssertUintParamCorrect(gl, LOCAL_GL_PACK_ROW_LENGTH,
mPixelStore_PackRowLength);
AssertUintParamCorrect(gl, LOCAL_GL_PACK_SKIP_ROWS,
mPixelStore_PackSkipRows);
AssertUintParamCorrect(gl, LOCAL_GL_PACK_SKIP_PIXELS,
mPixelStore_PackSkipPixels);
}
MOZ_ASSERT(!gl::GLContext::IsBadCallError(errorScope.GetError()));
#endif
}
