void
WebGLContext::DrawArrays(GLenum mode, GLint first, GLsizei vertCount)
{
const char funcName[] = "drawArrays";
if (IsContextLost())
return;
MakeContextCurrent();
bool error = false;
ScopedResolveTexturesForDraw scopedResolve(this, funcName, &error);
if (error)
return;
const GLsizei instanceCount = 1;
if (!DrawArrays_check(funcName, mode, first, vertCount, instanceCount))
return;
const ScopedDrawHelper scopedHelper(this, funcName, first, vertCount, instanceCount, &error);
if (error)
return;
const ScopedDrawWithTransformFeedback scopedTF(this, funcName, mode, vertCount,
instanceCount, &error);
if (error)
return;
{
ScopedDrawCallWrapper wrapper(*this);
gl->fDrawArrays(mode, first, vertCount);
}
Draw_cleanup(funcName);
scopedTF.Advance();
}
void
WebGLContext::DrawArraysInstanced(GLenum mode, GLint first, GLsizei count, GLsizei primcount)
{
const char funcName[] = "drawArraysInstanced";
if (IsContextLost())
return;
if (!ValidateDrawModeEnum(mode, funcName))
return;
MakeContextCurrent();
bool error;
ScopedResolveTexturesForDraw scopedResolve(this, funcName, &error);
if (error)
return;
if (!DrawArrays_check(first, count, primcount, funcName))
return;
if (!DrawInstanced_check(funcName))
return;
RunContextLossTimer();
{
ScopedMaskWorkaround autoMask(*this);
gl->fDrawArraysInstanced(mode, first, count, primcount);
}
Draw_cleanup(funcName);
}
void
WebGLContext::DrawElements(GLenum mode, GLsizei count, GLenum type,
WebGLintptr byteOffset)
{
const char funcName[] = "drawElements";
if (IsContextLost())
return;
if (!ValidateDrawModeEnum(mode, funcName))
return;
MakeContextCurrent();
bool error;
ScopedResolveTexturesForDraw scopedResolve(this, funcName, &error);
if (error)
return;
GLuint upperBound = 0;
if (!DrawElements_check(count, type, byteOffset, 1, funcName, &upperBound))
return;
RunContextLossTimer();
{
ScopedMaskWorkaround autoMask(*this);
if (gl->IsSupported(gl::GLFeature::draw_range_elements)) {
gl->fDrawRangeElements(mode, 0, upperBound, count, type,
reinterpret_cast<GLvoid*>(byteOffset));
} else {
gl->fDrawElements(mode, count, type,
reinterpret_cast<GLvoid*>(byteOffset));
}
}
Draw_cleanup(funcName);
}
void
WebGLContext::DrawElementsInstanced(GLenum mode, GLsizei count, GLenum type,
WebGLintptr byteOffset, GLsizei primcount)
{
const char funcName[] = "drawElementsInstanced";
if (IsContextLost())
return;
if (!ValidateDrawModeEnum(mode, funcName))
return;
MakeContextCurrent();
bool error;
ScopedResolveTexturesForDraw scopedResolve(this, funcName, &error);
if (error)
return;
GLuint upperBound = 0;
if (!DrawElements_check(count, type, byteOffset, primcount, funcName, &upperBound))
return;
if (!DrawInstanced_check(funcName))
return;
RunContextLossTimer();
{
ScopedMaskWorkaround autoMask(*this);
gl->fDrawElementsInstanced(mode, count, type,
reinterpret_cast<GLvoid*>(byteOffset),
primcount);
}
Draw_cleanup(funcName);
}